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Sample records for peri-implant health clinical

  1. Primary prevention of peri-implantitis: managing peri-implant mucositis.

    Science.gov (United States)

    Jepsen, Søren; Berglundh, Tord; Genco, Robert; Aass, Anne Merete; Demirel, Korkud; Derks, Jan; Figuero, Elena; Giovannoli, Jean Louis; Goldstein, Moshe; Lambert, France; Ortiz-Vigon, Alberto; Polyzois, Ioannis; Salvi, Giovanni E; Schwarz, Frank; Serino, Giovanni; Tomasi, Cristiano; Zitzmann, Nicola U

    2015-04-01

    Over the past decades, the placement of dental implants has become a routine procedure in the oral rehabilitation of fully and partially edentulous patients. However, the number of patients/implants affected by peri-implant diseases is increasing. As there are--in contrast to periodontitis--at present no established and predictable concepts for the treatment of peri-implantitis, primary prevention is of key importance. The management of peri-implant mucositis is considered as a preventive measure for the onset of peri-implantitis. Therefore, the remit of this working group was to assess the prevalence of peri-implant diseases, as well as risks for peri-implant mucositis and to evaluate measures for the management of peri-implant mucositis. Discussions were informed by four systematic reviews on the current epidemiology of peri-implant diseases, on potential risks contributing to the development of peri-implant mucositis, and on the effect of patient and of professionally administered measures to manage peri-implant mucositis. This consensus report is based on the outcomes of these systematic reviews and on the expert opinion of the participants. Key findings included: (i) meta-analysis estimated a weighted mean prevalence for peri-implant mucositis of 43% (CI: 32-54%) and for peri-implantitis of 22% (CI: 14-30%); (ii) bleeding on probing is considered as key clinical measure to distinguish between peri-implant health and disease; (iii) lack of regular supportive therapy in patients with peri-implant mucositis was associated with increased risk for onset of peri-implantitis; (iv) whereas plaque accumulation has been established as aetiological factor, smoking was identified as modifiable patient-related and excess cement as local risk indicator for the development of peri-implant mucositis; (v) patient-administered mechanical plaque control (with manual or powered toothbrushes) has been shown to be an effective preventive measure; (vi) professional intervention

  2. Clinical and microbiological characteristics of peri-implantitis cases: a retrospective multicentre study.

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    Charalampakis, G; Leonhardt, Å; Rabe, P; Dahlén, G

    2012-09-01

    The aim of this study was to follow patient cases retrospectively in a longitudinal manner from the time of implant placement to the time they were diagnosed with peri-implant disease, and to identify associated clinical and microbiological features of peri-implant disease. A total of 281 patient cases were chosen from the archives of the Oral Microbiological Diagnostic Laboratory, Gothenburg, Sweden, based on bacterial samples taken from diseased implants. A form was designed and filled in separately for each case including data on patient, implant and disease profile. Most cases were severe peri-implantitis cases (91.4%). In 41.3% of the patients, peri-implantitis was developed early, already after having implants in function less than 4 years. The type of implant surface was significantly associated with the time in years implants were in function, before disease was developed (P < 0.05). The microbiological results by both culture and checkerboard analysis, although failed to fully correspond to the severity of the disease in terms of magnitude, proved to show that peri-implantitis is a polymicrobial anaerobic infection with increased number of AGNB (aerobic Gram-negative bacilli) in 18.6% of the patients. Peri-implantitis is a biological complication of implants in function that poses a threat to their long-term survival. It may develop earlier around implants with rough surfaces and it may represent a true infection. Microbiological sampling methods should be improved and uniformed so as to fully unveil the microbiological profile of the disease. © 2011 John Wiley & Sons A/S.

  3. Clinical, Immune, and Microbiome Traits of Gingivitis and Peri-implant Mucositis.

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    Schincaglia, G P; Hong, B Y; Rosania, A; Barasz, J; Thompson, A; Sobue, T; Panagakos, F; Burleson, J A; Dongari-Bagtzoglou, A; Diaz, P I

    2017-01-01

    Tissues surrounding dental implants and teeth develop clinical inflammation in response to microbial stimuli. However, the literature suggests that differences exist in the microbial insult and inflammatory responses leading to gingivitis and peri-implant mucositis. In this pilot study, the authors use for the first time a systems biology approach to comprehensively evaluate clinical parameters, selected inflammatory markers, and the microbiome of subject-matched tooth and implant sites during native inflammation and in response to experimental plaque accumulation. Fifteen subjects with 2 posterior implants and corresponding contralateral teeth were examined at enrollment; at day 0, after reinstitution of gingival/mucosal health; at days 7, 14, and 21, during stent-mediated oral hygiene (OH) abstention; and at day 42, after resumption of OH. The subgingival microbiome was evaluated via 16S rRNA gene sequencing and 8 selected inflammatory markers measured in crevicular fluid. Comparison of teeth and implants via general linear models based on orthogonal polynomials showed similar responses in clinical parameters, inflammatory mediators, and proportions of individual microbial taxa during OH abstention. Implants, however, accumulated less plaque and underwent more heterogeneous shifts in microbiome structure. A multilevel, within-group, sparse partial least squares analysis of covariation of microbial, inflammatory, and clinical parameters throughout all study visits found inflammation around teeth and implants positively correlated with IL-1 alpha and IL-1 beta and with the proportions of Selenomonas, Prevotella, and 5 species-level phylotypes. Gingivitis, however, showed a stronger positive correlation with lactoferrin and IL-1ra and a stronger negative correlation with Rothia. Peri-implant mucositis, on the contrary, correlated positively with certain microbial taxa not associated with gingivitis by a previous study or the current one. In summary, differences

  4. Clinical research on peri-implant diseases: consensus report of Working Group 4.

    LENUS (Irish Health Repository)

    Sanz, Mariano

    2012-02-01

    Two systematic reviews have evaluated the quality of research and reporting of observational studies investigating the prevalence of, the incidence of and the risk factors for peri-implant diseases and of experimental clinical studies evaluating the efficacy of preventive and therapeutic interventions.

  5. Surgical Treatment of Peri-Implantitis: A 17-Year Follow-Up Clinical Case Report

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    Fabrizio Bassi

    2015-01-01

    Full Text Available The purpose of the present case report was to describe the surgical treatment of a peri-implantitis lesion associated with a regenerative approach. A 48-year-old patient came to authors’ attention 36 months after the placement of a dental implant (ITI-Bonefit Straumann, Waldenburg, Switzerland in position 46. A swelling of the peri-implant soft tissues was observed, associated with bleeding on probing and probing depth > 10 mm. A significant peri-implant bone loss was clearly visible on the periapical radiograph. A nonsurgical periodontal supportive therapy was firstly conducted to reduce the inflammation, followed by the surgical treatment of the defect. After mechanical and chemical decontamination with tetracycline solution, a regenerative approach consisting in the application of deproteinized bovine bone mineral (Bio-Oss, Geistlich Pharma AG, Wolhusen, Switzerland and a collagen membrane (Bio-Gide, Geistlich Pharma AG, Wolhusen, Switzerland was performed. An antibiotic therapy was associated with the treatment. The 17-year follow-up showed a physiological probing depth with no clinical signs of peri-implant inflammation and bleeding on probing. No further radiographic bone loss was observed. The treatment described in the present case report seemed to show improved clinical results up to a relevant follow-up period.

  6. Peri-Implantitis Associated with Type of Cement: A Retrospective Analysis of Different Types of Cement and Their Clinical Correlation to the Peri-Implant Tissue.

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    Korsch, Michael; Walther, Winfried

    2015-10-01

    The cementation of fixed implant-supported dental restorations involves the risk of leaving excess cement in the mouth which can promote biofilm formation in the peri-implant sulcus. As a result, an inflammation may develop. The aim of the present study was to investigate the clinical effect of two different luting cements on the peri-implant tissue. Within the scope of a retrospective clinical follow-up study, the prosthetic structures of 22 patients with 45 implants were revised. In all cases, a methacrylate cement (Premier Implant Cement [PIC], Premier® Dental Products Company, Plymouth Meeting, PA, USA) had been used for cementation. In 16 additional patients with 28 implants, the suprastructures were retained with a zinc oxide-eugenol cement (Temp Bond [TB], Kerr Sybron Dental Specialities, Glendora, CA, USA). These patients were evaluated in the course of routine treatment. In both populations, the retention time of the suprastructures was similar (TB 3.77 years, PIC 4.07 years). In the PIC cases, 62% of all implants had excess cement. In the TB cases, excess cement was not detectable on any of the implants. Bleeding on probing was significantly more frequent on implants cemented with PIC (100% with and 94% without excess cement) than on implants cemented with TB (46%). Pocket suppuration was observed on 89% of the PIC-cemented implants with excess cement (PIC without excess cement 24%), whereas implants with TB were not affected by it at all. The peri-implant bone loss was significantly greater in the PIC patients (with excess cement 1.37 mm, without excess cement 0.41 mm) than it was in the TB patients (0.07 mm). The frequency of undetected excess cement depends essentially on the type of cement used. Cements that tend to leave more undetected excess have a higher prevalence for peri-implant inflammation and cause a more severe peri-implant bone loss. © 2014 Wiley Periodicals, Inc.

  7. Interleukin-1β level in peri-implant crevicular fluid and its correlation with the clinical and radiographic parameters

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    Aniruddha M Kajale

    2014-01-01

    Full Text Available Background and Objectives : Assessing only the clinical and radiographic parameters for evaluation of dental implants may not be enough as they often reflect extensive inflammatory changes in the periodontal tissues. As peri-implant crevicular fluid (PICF can give us a more prompt and objective measure of the disease activity, the purpose of this case series is to assess the peri-implant health status of single tooth dental implants not only clinically and radiographically but also biochemically. Materials and Methods: Thirteen patients were subjected to dental implants at single edentulous sites using a conventional surgical approach. At baseline, 6 months, and 12 months after implant placement, the clinical and radiographic parameters were recorded. Additionally, IL-1β in PICF was estimated using the ELISA kit at 6 th and 12 th month. Results: The clinical and radiographic parameters differed significantly around the implants at different time intervals with IL-1β levels showing highly significant differences between 6 months (31.79 ± 12.26 pg/μl and 12 months (113.09 ± 51.11 pg/μl. However, Spearman′s correlation coefficient showed no correlation with the clinical and radiographic parameters. Interpretation and Conclusion: Assessment of the various parameters confirmed that all the implants had a healthy peri-implant status. Although the levels of IL-1β in PICF were elevated at the 12 th month, they were well within the healthy range as observed by previous studies. This indicates that IL-1β, a biochemical marker, can be used as an adjunct to clinical and radiographic parameters in the assessment of EARLY inflammatory changes around implants.

  8. Efficiency of photodynamic therapy in the treatment of peri-implantitis: A three-month randomized controlled clinical trial

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    Rakašević Dragana

    2016-01-01

    Full Text Available Introduction. Peri-implantitis is an inflammatory lesion of peri-implant tissues. Eradication of the causative bacteria and decontamination of the implant surface is essential in achieving predictable and stabile clinical results. Photodynamic therapy (PDT is non-invasive adjuvant therapeutic method to surgery in the treatment of bacterial infection. Objective. The aim of this study was to evaluate early clinical and microbiological outcomes of periimplantitis after surgical therapy with adjuvant PDT. Methods. Fifty-two diagnosed peri-implantitis sites were divided into two groups. PDT was used for decontamination of implant surface in the study group; in the control group, chlorhexidine gel (CHX followed by saline irrigation was applied. Several clinical parameters were recorded before the treatment (baseline values and three months after surgical treatment. Samples for microbiological identification were collected before therapy, during the surgical therapy (before and after decontamination of implant surface, and three months thereafter, and analyzed with identification systems using biochemical analysis. Results. The use of PDT resulted in significant decrease of bleeding on probing in comparison to CHX (p < 0.001. It showed significant decontamination of implant surfaces with complete elimination of anaerobic bacteria immediately after surgical procedure and three months later. Conclusion. The results indicate that PDT can be used as an adjuvant therapy to surgery for decontamination of implant surface and surrounding peri-implant tissues within the treatment of peri-implantitis. [Projekat Ministarstva nauke Republike Srbije, br. 41008

  9. Treatment Alternatives to Negotiate Peri-Implantitis

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    Eli E. Machtei

    2014-01-01

    Full Text Available Peri-implant diseases are becoming a major health issue in dentistry. Despite the magnitude of this problem and the potential grave consequences, commonly acceptable treatment protocols are missing. Hence, the present paper reviews the literature treatment of peri-implantitis in order to explore their benefits and limitations. Treatment of peri-implantitis may include surgical and nonsurgical approaches, either individually or combined. Nonsurgical therapy is aimed at removing local irritants from the implants’ surface with or without surface decontamination and possibly some additional adjunctive therapies agents or devices. Systemic antibiotics may also be incorporated. Surgical therapy is aimed at removing any residual subgingival deposits and additionally reducing the peri-implant pockets depth. This can be done alone or in conjunction with either osseous respective approach or regenerative approach. Finally, if all fails, explantation might be the best alternative in order to arrest the destruction of the osseous structure around the implant, thus preserving whatever is left in this site for future reconstruction. The available literature is still lacking with large heterogeneity in the clinical response thus suggesting possible underlying predisposing conditions that are not all clear to us. Therefore, at present time treatment of peri-implantitis should be considered possible but not necessarily predictable.

  10. Comparison between inflammation-related markers in peri-implant crevicular fluid and clinical parameters during osseointegration in edentulous jaws

    DEFF Research Database (Denmark)

    Bielemann, Amália Machado; Marcello-Machado, Raissa Micaella; Manzolli Leite, Fabio Renato

    2017-01-01

    Objectives The aim of this study is to improve the understanding of interleukin mechanisms during osseointegration to enhance the monitoring of implant failure and success. Clinical parameters, implant stability, and cytokine levels in peri-implant crevicular fluid (PICF) during early bone healin...

  11. The utilization of a diode laser in the surgical treatment of peri-implantitis. A randomized clinical trial.

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    Papadopoulos, Christos A; Vouros, Ioannis; Menexes, Georgios; Konstantinidis, Antonis

    2015-11-01

    A comparison of different treatment modalities of peri-implantitis can lead to the development and application of more effective and efficient methods of therapy in clinical practice. This study compares the effectiveness of open flap debridement used alone, with an approach employing the additional use of a diode laser for the treatment of peri-implantitis. Nineteen patients were divided into two groups and treated for peri-implantitis. In the control group (C group), the therapy utilized access flaps, plastic curettes, and sterilized gauzes soaked in saline. The test group (L group) was treated similarly but with additional irradiation using a diode laser. The parameters studied were pocket depth (PD) as the primary outcome variable, clinical attachment level (CAL), bleeding on probing (BOP), and plaque index (PI) as secondary variables. Measurements were performed at three different time points, baseline (BSL), 3 months, and 6 months after treatment. Three months after treatment, a mean PD reduction of 1.19 mm for the control group and 1.38 mm for the laser group was recorded. The corresponding BOP changes were 72.9 and 66.7%, respectively. These changes were significant and remained at the same levels at the 6-month examination (p Surgical treatment of peri-implantitis by access flaps leads to improvement of all clinical parameters studied while the additional use of diode laser does not seem to have an extra beneficiary effect. The additional use of a diode laser in the surgical treatment of peri-implantitis offers a limited clinical benefit.

  12. Influence of occlusal loading on peri-implant clinical parameters. A pilot study.

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    Pellicer-Chover, Hilario; Viña-Almunia, José; Romero-Millán, Javier; Peñarrocha-Oltra, David; García-Mira, Berta; Peñarrocha-Diago, María

    2014-05-01

    To investigate the relation between occlusal loading and peri-implant clinical parameters (probing depth, bleeding on probing, gingival retraction, width of keratinized mucosa, and crevicular fluid volume) in patients with implant-supported complete fixed prostheses in both arches. This clinical study took place at the University of Valencia (Spain) dental clinic. It included patients attending the clinic for regular check-ups during at least 12 months after rehabilitation of both arches with implant-supported complete fixed ceramo-metallic prostheses. One study implant and one control implant were established for each patient using the T-Scan®III computerized system (Tesco, South Boston, USA). The maxillary implant closest to the point of maximum occlusal loading was taken as the study implant and the farthest (with least loading) as the control. Occlusal forces were registered with the T-Scan® III and then occlusal adjustment was performed to distribute occlusal forces correctly. Peri-implant clinical parameters were analyzed in both implants before and two and twelve months after occlusal adjustment. Before occlusal adjustment, study group implants presented a higher mean volume of crevicular fluid (51.3 ± 7.4 UP) than the control group (25.8 ± 5.5 UP), with statistically significant difference. Two months after occlusal adjustment, there were no significant differences between groups (24.6 ± 3.8 UP and 26 ± 4.5 UP respectively) (p=0.977). After twelve months, no significant differences were found between groups (24.4 ± 11.1 UP and 22.5 ± 8.9 UP respectively) (p=0.323). For the other clinical parameters, no significant differences were identified between study and control implants at any of the study times (p>0.05). Study group implants receiving higher occlusal loading presented significantly higher volumes of crevicular fluid than control implants. Crevicular fluid volumes were similar in both groups two and twelve months after occlusal adjustment.

  13. Management of peri-implantitis

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    Jayachandran Prathapachandran

    2012-01-01

    Full Text Available Peri-implantitis is a site-specific infectious disease that causes an inflammatory process in soft tissues, and bone loss around an osseointegrated implant in function. The etiology of the implant infection is conditioned by the status of the tissue surrounding the implant, implant design, degree of roughness, external morphology, and excessive mechanical load. The microorganisms most commonly associated with implant failure are spirochetes and mobile forms of Gram-negative anaerobes, unless the origin is the result of simple mechanical overload. Diagnosis is based on changes of color in the gingiva, bleeding and probing depth of peri-implant pockets, suppuration, X-ray, and gradual loss of bone height around the tooth. Treatment will differ depending upon whether it is a case of peri-implant mucositis or peri-implantitis. The management of implant infection should be focused on the control of infection, the detoxification of the implant surface, and regeneration of the alveolar bone. This review article deals with the various treatment options in the management of peri-implantitis. The article also gives a brief description of the etiopathogenesis, clinical features, and diagnosis of peri-implantitis.

  14. Implants in free fibula flap supporting dental rehabilitation - Implant and peri-implant related outcomes of a randomized clinical trial.

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    Kumar, Vinay V; Ebenezer, Supriya; Kämmerer, Peer W; Jacob, P C; Kuriakose, Moni A; Hedne, Naveen; Wagner, Wilfried; Al-Nawas, Bilal

    2016-11-01

    The objective of this study was to assess the difference in success rates of implants when using two or four implant-supported-overdentures following segmental mandibular reconstruction with fibula free flap. This prospective, parallel designed, randomized clinical study was conducted with 1:1 ratio. At baseline, all participants already had segmental reconstruction of mandible with free fibula flap. The participants were randomized into two groups: Group-I received implant-supported-overdentures on two tissue-level implants and Group-II received implant-supported-overdentures on four tissue-level implants. Success rates of the implants were evaluated at 3 months, 6 months and 12 months following implant loading using marginal bone level changes as well as peri-implant indices (Buser et al., 1990). 52 patients were randomized into two treatment groups (26 each), out of which 18 patients (36 implants) of Group-I and 17 patients (68 implants) of Group-II were evaluated. One implant in Group-I was lost due to infective complications and one patient in the same group had superior barrel necrosis. There was a statistically significant increase at both time points (p = 0.03, p = 0.04 at 6 months, 12 months) in the amount of marginal bone loss in Group-I (0.4 mm, 0.5 mm at 6 months, 12 months) as compared to Group-II (0.1 mm, 0.2 mm at 6 months, 12 months). There were no clinically significant changes peri-implant parameters between both groups. Peri-implant soft tissue hyperplasia was seen in both groups, 32% of implants at 3-months, 26% at 6-months and 3% at 12-months follow-up. The results of this study show that patients with 2-implant-supported-overdentures had higher marginal bone loss as compared to patients with 4-implant-supported-overdentures. There were no clinically significant differences in peri-implant soft tissue factors in patients with 2- or 4-implant-supported-overdentures. Hyperplastic peri-implant tissues are common in the early implant

  15. Retrograde peri-implantitis

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    Mohamed Jumshad

    2010-01-01

    Full Text Available Retrograde peri-implantitis constitutes an important cause for implant failure. Retrograde peri-implantitis may sometimes prove difficult to identify and hence institution of early treatment may not be possible. This paper presents a report of four cases of (the implant placed developing to retrograde peri-implantitis. Three of these implants were successfully restored to their fully functional state while one was lost due to extensive damage. The paper highlights the importance of recognizing the etiopathogenic mechanisms, preoperative assessment, and a strong postoperative maintenance protocol to avoid retrograde peri-implant inflammation.

  16. Effects of modified abutment characteristics on peri-implant soft tissue health: A systematic review and meta-analysis.

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    Sanz-Martín, Ignacio; Sanz-Sánchez, Ignacio; Carrillo de Albornoz, Ana; Figuero, Elena; Sanz, Mariano

    2018-01-01

    The purpose of this systematic review was to evaluate the impact of the abutment characteristics on peri-implant tissue health and to identify the most suitable material and surface characteristics. A protocol was developed aimed to answer the following focused question: "Which is the effect of the modification of the abutment design in regard to the maintenance of the peri-implant soft tissue health?" Further subanalysis aimed to investigate the impact of the abutment material, macroscopic design, surface topography and surface manipulation. Randomised controlled trials (RCTs) with a follow-up of at least 6 months after implant loading were considered as inclusion criteria. Meta-analyses were performed whenever possible. Nineteen final publications from thirteen investigations were included. The results from the meta-analysis indicated that zirconia abutments (Zi) experienced less increase in BOP values over time [n = 3; WMD = -26.96; 95% CI (-45.00; -8.92); p = .003] and less plaque accumulation [n = 1; MD = -20.00; 95% CI (-41.47; 1.47); p = .068] when compared with titanium abutments (Ti). Bone loss was influenced by the method of abutment decontamination [n = 1; MD = -0.44; 95% CI (-0.65; -0.23); p abutment did not have a significant influence on peri-implant inflammation. In contrast, the abutment material demonstrated increased BOP values over time for Ti when compared to Zi abutments. © 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  17. Clinical, Radiographic and Microbiological Evaluation of High Level Laser Therapy, a New Photodynamic Therapy Protocol, in Peri-Implantitis Treatment; a Pilot Experience

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    Gianluigi Caccianiga

    2016-01-01

    Full Text Available Aim. Endosseous implants are widely used to replace missing teeth but mucositis and peri-implantitis are the most frequent long-term complications related with dental implants. Removing all bacterial deposits on contaminated implant surface is very difficult due to implant surface morphology. The aim of this study was to evaluate the bactericidal potential of photodynamic therapy by using a new high level laser irradiation protocol associated with hydrogen peroxide in peri-implantitis. Materials and Methods. 10 patients affected by peri-implantitis were selected for this study. Medical history, photographic documentation, periodontal examination, and periapical radiographs were collected at baseline and 6 months after surgery. Microbiological analysis was performed with PCR Real Time. Each patient underwent nonsurgical periodontal therapy and surgery combined with photodynamic therapy according to High Level Laser Therapy protocol. Results. All peri-implant pockets were treated successfully, without having any complication and not showing significant differences in results. All clinical parameters showed an improvement, with a decrease of Plaque Index (average decrease of 65%, range 23–86%, bleeding on probing (average decrease of 66%, range 26–80%, and probing depth (average decrease of 1,6 mm, range 0,46–2,6 mm. Periapical radiographs at 6 months after surgery showed a complete radiographic filling of peri-implant defect around implants treated. Results showed a decrease of total bacterial count and of all bacterial species, except for Eikenella corrodens, 6 months after surgery. Conclusion. Photodynamic therapy using HLLT appears to be a good adjunct to surgical treatment of peri-implantitis.

  18. The association of clinical and microbiologic parameters with histologic observations in relatively healthy peri-implant conditions- a preliminary short-term in vivo study

    NARCIS (Netherlands)

    Brakel, R. van; Meijer, G.J.; Putter, C. de; Verhoeven, J.W.; Jansen, J.A.; Cune, M.S.

    2014-01-01

    PURPOSE: To determine whether clinical findings-bleeding on probing, pocket depth, recession, and bacterial sampling-correlate with histologic outcomes in relatively healthy peri-implant soft tissues in people. MATERIALS AND METHODS: In this cross-sectional study, a convenience sample of 20

  19. Impact of a chronic smoking habit on the osteo-immunoinflammatory mediators in the peri-implant fluid of clinically healthy dental implants.

    Science.gov (United States)

    Negri, Brenno Marcondes; Pimentel, Suzana Peres; Casati, Marcio Zaffalon; Cirano, Fabiano Ribeiro; Casarin, Renato Correa; Ribeiro, Fernanda Vieira

    2016-10-01

    The aim of this study was to evaluate the influence of chronic cigarette smoking on the profile of osteo-immunoinflammatory markers in the peri-implant crevicular fluid (PICF) from clinically healthy implants DESIGNS: Twenty-five smokers and 23 non-smoker subjects with a unitary screwed implant-supported crown in the molar or pre-molar region were enrolled in this study. The implants should have been in functioning for at least 12 months, and the peri-implant tissue should be clinically healthy [probing depth (PD)0.05). Moreover, higher ICTP concentrations and a higher TH1/TH2 ratio were observed in the PICF of the smoker patients (p0.05). Smoking habit modulate peri-implant cytokine profile, leading to reductions in IL-4, -8 TNF-α, and OPG levels and an increased ICTP and TH1/TH2 ratio in peri-implant crevicular fluid. Copyright © 2016 Elsevier Ltd. All rights reserved.

  20. Probiotic supplements and debridement of peri-implant mucositis

    DEFF Research Database (Denmark)

    Hallström, Hadar; Lindgren, Susann; Widén, Cecilia

    2016-01-01

    OBJECTIVE: The aim of this double-blind randomized placebo-controlled trial was to evaluate the effects of probiotic supplements in adjunct to conventional management of peri-implant mucositis. MATERIALS AND METHODS: Forty-nine adult patients with peri-implant mucositis were consecutively recruited...... debridement and oral hygiene reinforcement resulted in clinical improvement of peri-implant mucositis and a reduction in cytokine levels. Probiotic supplements did not provide added benefit to placebo....

  1. Non-surgical periodontal treatment of peri-implant diseases with the adjunctive use of diode laser: preliminary clinical study.

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    Lerario, Francesco; Roncati, Marisa; Gariffo, Annalisa; Attorresi, Enrica; Lucchese, Alessandra; Galanakis, Alexandros; Palaia, Gaspare; Romeo, Umberto

    2016-01-01

    Peri-implant diseases present in two forms: peri-implant mucositis and peri-implantitis. The prevalence of peri-implant complications is significantly rising. The aim of this study was to compare conventional treatment of inflamed peri-implant tissues with conventional treatment together with diode laser application. Twenty-seven patients (age 36 to 67, 15 women and 12 men, 12 smokers and 15 non-smokers) requiring treatment for mucositis or peri-implantitis were taken into account for this preliminary study. Plaque index (PI), pocket depth (PD), and bleeding on probing (BoP) were recorded at baseline evaluation. Patients in control group (CG) received conventional non-surgical periodontal treatment. Patients in test group received conventional non-surgical periodontal treatment together with diode laser application (810 nm, 30 s, 1 W, 50 Hz, t on = 100 ms, t off = 100 ms, energy density = 24.87 J/cm(2)). Paired t test was used to evaluate the difference in repeated measurements of considered indexes at T 0 and T 1 (1 year) in both groups. A total of 606 sites were taken into account in the test group (TG) and 144 in the CG. PD mean variation in the TG was 2.66 mm ± 1.07, while mean PD variation in the CG was 0.94 ± 1.13 mm. Paired t testing of the variation in PD in CG and TG revealed a statistically significant difference between the two groups (p diode laser seems to be an additional valuable tool for peri-implant disease treatment.

  2. Diagnostic Principles of Peri-Implantitis: a Systematic Review and Guidelines for Peri-Implantitis Diagnosis Proposal

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    Ausra Ramanauskaite

    2016-09-01

    Full Text Available Objectives: To review and summarize the literature concerning peri-implantitis diagnostic parameters and to propose guidelines for peri-implantitis diagnosis. Material and Methods: An electronic literature search was conducted of the MEDLINE (Ovid and EMBASE databases for articles published between 2011 and 2016. Sequential screening at the title/abstract and full-text levels was performed. Systematic reviews/guidelines of consensus conferences proposing classification or suggesting diagnostic parameters for peri-implantitis in the English language were included. The review was recorded on PROSPERO system with the code CRD42016033287. Results: The search resulted in 10 articles that met the inclusion criteria. Four were papers from consensus conferences, two recommended diagnostic guidelines, three proposed classification of peri-implantitis, and one suggested an index for implant success. The following parameters were suggested to be used for peri-implantitis diagnosis: pain, mobility, bleeding on probing, probing depth, suppuration/exudate, and radiographic bone loss. In all of the papers, different definitions of peri-implantitis or implant success, as well as different thresholds for the above mentioned clinical and radiographical parameters, were used. Current evidence rationale for the diagnosis of peri-implantitis and classification based on consecutive evaluation of soft-tissue conditions and the amount of bone loss were suggested. Conclusions: Currently there is no single uniform definition of peri-implantitis or the parameters that should be used. Rationale for diagnosis and prognosis of peri-implantitis as well as classification of the disease is proposed.

  3. Two-year clinical outcomes following non-surgical mechanical therapy of peri-implantitis with adjunctive diode laser application.

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    Mettraux, Gérald R; Sculean, Anton; Bürgin, Walter B; Salvi, Giovanni E

    2016-07-01

    Non-surgical mechanical therapy of peri-implantitis (PI) with/without adjunctive measures yields limited clinical improvements. To evaluate the clinical outcomes following non-surgical mechanical therapy of PI with adjunctive application of a diode laser after an observation period ≥2 years. At baseline (BL), 15 patients with 23 implants with a sandblasted and acid-etched (SLA) surface diagnosed with PI were enrolled and treated. PI was defined as presence of probing pocket depths (PPD) ≥5 mm with bleeding on probing (BoP) and/or suppuration and ≥2 threads with bone loss after delivery of the restoration. Implant sites were treated with carbon fiber and metal curettes followed by repeated application of a diode laser 3x for 30 s (settings: 810 nm, 2.5 W, 50 Hz, 10 ms). This procedure was performed at Day 0 (i.e., baseline), 7 and 14. Adjunctive antiseptics or adjunctive systemic antibiotics were not prescribed. All implants were in function after 2 years. The deepest PPD decreased from 7.5 ± 2.6 mm to 3.6 ± 0.7 mm at buccal (P surgical mechanical therapy of PI with adjunctive repeated application of a diode laser yielded significant clinical improvements after an observation period of at least 2 years. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  4. The 1st Baltic Osseointegration Academy and Lithuanian University of Health Sciences Consensus Conference 2016. Summary and Consensus Statements: Group II - Peri-Implantitis Diagnostics and Decision Tree

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    Tolga Fikret Tözüm

    2016-09-01

    Full Text Available Introduction: The task of Group 2 was to review and update the existing data concerning clinical and genetic methods of diagnostics of peri-implantitis. Special interest was paid to the peri-implant crevicular fluid (PICF overview including analysis of enzymes and biomarkers and microbial profiles from implants. Material and Methods: The main areas of interest were as follows: effect of smoking and history of periodontitis, prosthetic treatment mistakes, excess cement, overloading, general diseases influence on peri-implantitis development. The systematic review and/or meta-analysis were registered in PROSPERO, an international prospective register of systematic reviews: http://www.crd.york.ac.uk/PROSPERO/. The literature in the corresponding areas of interest was searched and reported using the PRISMA (Preferred Reporting Item for Systematic Review and Meta-Analysis Statement: http://www.prisma-statement.org/. The method of preparation of systematic reviews of the literature based on comprehensive search strategies was discussed and standardized. The summary of the materials and methods employed by the authors in preparing the systematic review and/or meta-analysis is presented in Preface chapter. Results: The results and conclusions of the review process are presented in the respective papers. The group′s general commentaries, consensus statements, clinical recommendations and implications for research are presented in this article.

  5. The 1st Baltic Osseointegration Academy and Lithuanian University of Health Sciences Consensus Conference 2016. Summary and Consensus Statements: Group III - Peri-Implantitis Treatment

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    Fernando Suárez-López del Amo

    2016-09-01

    Full Text Available Introduction: The task of Group 3 was to review and update the existing data concerning non-surgical, surgical non-regenerative and surgical regenerative treatment of peri-implantitis. Special interest was paid to the preventive and supporting therapy in case of peri-implantitis. Material and Methods: The main areas of interest were as follows: effect of smoking and history of periodontitis, prosthetic treatment mistakes, excess cement, overloading, general diseases influence on peri-implantitis development. The systematic review and/or meta-analysis were registered in PROSPERO, an international prospective register of systematic reviews: http://www.crd.york.ac.uk/PROSPERO/. The literature in the corresponding areas of interest was searched and reported using the PRISMA (Preferred Reporting Item for Systematic Review and Meta-Analysis Statement: http://www.prisma-statement.org/. The method of preparation of systematic reviews of the literature based on comprehensive search strategies was discussed and standardized. The summary of the materials and methods employed by the authors in preparing the systematic review and/or meta-analysis is presented in Preface chapter. Results: The results and conclusions of the review process are presented in the respective papers. The group′s general commentaries, consensus statements, clinical recommendations and implications for research are presented in this article.

  6. Influence of Abutment Design on Clinical Status of Peri-Implant Tissues

    OpenAIRE

    Taiyeb-Ali, T. B.; Toh, C. G.; Siar, C. H.; Seiz, D.; Ong, S. T.

    2017-01-01

    Objective: To compare the clinical soft tissue responses around implant tooth-supported 3-unit bridges using tapered abutments with those using butt-joint abutments. Methods: In a split-mouth design study, 8 mm Ankylos (Dentsply Friadent, Germany) implants were placed in the second mandibular molar region of 8 adult Macaca fascicularis monkeys about I month after extraction of all mandibular molars. After 3 months of submerged healing, 3-unit metal bridges were constructed. Clinical data was ...

  7. Effectiveness of adjunctive antimicrobial photodynamic therapy in reducing peri-implant inflammatory response in individuals vaping electronic cigarettes: A randomized controlled clinical trial.

    Science.gov (United States)

    Al Rifaiy, Mohammed Q; Qutub, Osama A; Alasqah, Mohammed N; Al-Sowygh, Zeyad H; Mokeem, Sameer A; Alrahlah, Ali

    2018-06-01

    There are no studies that have assessed the effectiveness of antimicrobial photodynamic therapy (aPDT) in reducing peri-implant inflammatory response in individuals vaping electronic cigarettes (e-cigs). This study explored the effectiveness of aPDT as an adjunct to mechanical debridement (MD) in the treatment of peri-implant mucositis (p-iM) in individuals vaping e-cigs. Vaping individuals with p-iM were divided into 2 groups: (a) Group-I: receiving MD with aPDT (test group); and (b) Group-II: MD only (control group). Peri-implant inflammatory parameters including plaque index (PI), bleeding on probing (BoP), and pocket depth (PD) were assessed at baseline and 12-weeks follow-up. Inter- and intra-group comparisons were made using Mann-Whitney U test and Wilcoxon signed ranks test. P-value vaping individuals in groups I and II were 33.6 ± 2.8 and 35.4 ± 2.1 years, respectively. Mean daily frequency of vaping e-cigs in groups I and II was 7.3 ± 0.9 and 5.9 ± 1.0 whereas mean duration of vaping e-cigs was 4.8 ± 1.5 and 4.1 ± 1.3 years respectively. There was no significant difference between groups at baseline. There was significant improvement in PI (p vaping e-cigs. The findings of the present study should be considered preliminary and interpreted with caution. Further randomized clinical trials should be performed in order to obtain strong conclusions. Copyright © 2018 Elsevier B.V. All rights reserved.

  8. Treatment of peri-implant diseases: a review of the literature and protocol proposal.

    Science.gov (United States)

    Armas, Joshé; Culshaw, Shauna; Savarrio, Lee

    2013-01-01

    Over 100,000 implants were placed in the UK in 2010. As the numbers of patients with implant-retained prostheses increases, operators are encountering an increasing number of biological implant complications, most commonly peri-implant mucositis and peri-implantitis. The effective management of these complications is crucial to maintain patients' oral health. In particular, in contrast to common periodontal infections, some peri-implant infections may benefit from surgical intervention as a first line approach. This article reviews the literature on the treatment options for peri-implant mucositis and peri-implantitis and proposes a protocol for their treatment.

  9. The 1st Baltic Osseointegration Academy and Lithuanian University of Health Sciences Consensus Conference 2016. Summary and Consensus Statements: Group I - Peri-Implantitis Aetiology, Risk Factors and Pathogenesis

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    Claudio Stacchi

    2016-09-01

    Full Text Available Introduction: The task of Group 1 was to review and update the existing data concerning aetiology, risk factors and pathogenesis of peri-implantitis. Previous history of periodontitis, poor oral hygiene, smoking and presence of general diseases have been considered among the aetiological risk factors for the onset of peri-implant pathologies, while late dental implant failures are commonly associated with peri-implantitis and/or with the application of incorrect biomechanical forces. Special interest was paid to the bone cells dynamics as part of the pathogenesis of peri-implantitis. Material and Methods: The main areas indagated by this group were as follows: influence of smoking, history of periodontitis and general diseases on peri-implantitis development, bio-mechanics of implant loading and its influence on peri-implant bone and cellular dynamics related to the pathogenesis of peri-implantitis. The systematic reviews and/or meta-analyses were registered in PROSPERO, an international prospective register of systematic reviews: http://www.crd.york.ac.uk/PROSPERO/. The literature in the corresponding areas of interest was screened and reported following the PRISMA (Preferred Reporting Item for Systematic Review and Meta-Analysis Statement: http://www.prisma-statement.org/. Method of preparation of the systematic reviews, based on comprehensive search strategies, was discussed and standardized. The summary of the materials and methods employed by the authors in preparing the systematic reviews and/or meta-analyses is presented in Preface chapter. Results: The results and conclusions of the review process are presented in the respective papers. One systematic review with meta-analysis, three systematic reviews and one theoretical analysis were performed. The group′s general commentaries, consensus statements, clinical recommendations and implications for research are presented in this article.

  10. Nonsurgical treatment of peri-implantitis using an air-abrasive device or mechanical debridement and local application of chlorhexidine. Twelve-month follow-up of a prospective, randomized, controlled clinical study.

    Science.gov (United States)

    John, Gordon; Sahm, Narja; Becker, Jürgen; Schwarz, Frank

    2015-11-01

    The purpose of this prospective, parallel group-designed, randomized controlled clinical study was the evaluation of the effectiveness of an air-abrasive device (AAD) for nonsurgical treatment of peri-implantitis. Twenty five patients, showing at least one implant with initial to moderate peri-implantitis, underwent an oral hygiene programme and were randomly treated using either (1) AAD (amino acid glycine powder) or (2) mechanical debridement using carbon curettes and antiseptic therapy with chlorhexidine digluconate (mechanical debridement (MDA)). Clinical parameters were measured at baseline and 12 months after treatment (e.g. bleeding on probing (BOP), probing depth (PD), clinical attachment level (CAL)). At 12 months, the AAD group revealed significantly higher (p  0.05; Mann-Whitney test, respectively). Within its limitations, the present study has indicated that both treatment procedures resulted in comparable but limited CAL gains at 12 months. Furthermore, it could be detected that AAD was associated with significantly higher BOP decrease than MDA. The present results have indicated that nonsurgical therapy of peri-implantitis using both AAD and MDA resulted in comparable PD reductions and CAL gains after 12 months of healing. The BOP reductions were significantly higher in the AAD in comparison to the MDA group. So, AAD may be more effective for nonsurgical therapy of peri-implantitis than MDA.

  11. The etiological structure, biological properties of causative agents of peri-implant mucositis

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    M. O. Faustova

    2017-10-01

    Full Text Available The purpose was to examine the peri-implant mucositis microflora and sensitivity of dominant pathogens to antibiotics and antiseptics. Materials and methods. The study involved 43 patients with peri-implant mucositis. During the study 162 clinical strains of microorganisms were isolated and identified. Cultivation of clinical isolates was performed by the standard method, final identification was carried out with using bacteriological automatic analyzer Vitec – 2compact bioMérieux (France. Determination of sensitivity to antibiotics of pathogens was carried with disc-diffusion method; the study of sensitivity to antiseptics was carried by means of double serial dilutions method by the standard procedure approved by the Order № 167 of the Ministry of Public Health of Ukraine on “On Approval of Training Guidance “Assessment of the sensitivity of microorganisms to antibiotics”, dated by April, 5, 2007. Results. It is The microflora of peri-implant area of patients with mucositis was revealed to consist of opportunistic species. Representatives of Streptococcus spp. and Staphylococcus spp. were dominating among them, although Kocuria spp., Enterobacter spp. and yeast-like fungi Candida spp. were detected quite common. Investigated clinical strains of microorganisms had different sensitivity to antibiotics. All cultures were sensitive to fluoroquinolones, but very significant number of them showed resistance to penicillins, macrolides and lincosamides. In turn, horosten, dekasan and chlorhexidine had powerful antimicrobial effect on dominant pathogens of periimplant mucositis in patients. Moreover, the effect of decametoxine-based antiseptics on some of them significantly exceeded the activity of chlorhexidine. Conclusions. Microflora from peri-implant area of patients with peri-implant mucositis consists mainly of aerobic and facultative anaerobic microorganisms, belonging to normal oral microflora. Most of pathogens of mucositis obtaine

  12. Receptor activator of nuclear factor kappa B (RANK as a determinant of peri-implantitis

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    Rakić Mia

    2013-01-01

    Full Text Available Background/Aim. Peri-implantitis presents inflammatory process that affects soft and hard supporting tissues of osseointegrated implant based on inflammatory osteoclastogenesis. The aim of this study was to investigate whether receptor activator of nuclear factor kappa B (RANK concentrations in peri-implant crevicular fluid could be associated with clinical parameters that reflect inflammatory nature of peri-implantitis. Methods. The study included 67 patients, 22 with diagnosed peri-implantitis, 22 persons with healthy peri-implant tissues and 23 patients with periodontitis. Clinical parameters from each patient were recorded and samples of peri-implant/gingival crevicular fluid were collected for the enzyme-linked immunosorbent assay (ELISA analysis. Results. RANK concentration was significantly increased in samples from the patients with periimplantitis when compared to healthy implants (p < 0.0001, where the average levels were 9 times higher. At the same time RANK concentration was significantly higher in periimplantitis than in periodontitis sites (p < 0.0001. In implant patients pocket depths and bleeding on probing values were positively associated with high RANK concentrations (p < 0.0001. Conclusion. These results revealed association of increased RANK concentration in samples of periimplant/ gingival crevicular fluid with peri-implant inflammation and suggests that RANK could be a pathologic determinant of peri-implantitis, thereby a potential parameter in assessment of peri-implant tissue inflammation and a potential target in designing treatment strategies.

  13. Interventions for replacing missing teeth: treatment of peri-implantitis.

    Science.gov (United States)

    Esposito, Marco; Grusovin, Maria Gabriella; Worthington, Helen V

    2012-01-18

    One of the key factors for the long-term success of oral implants is the maintenance of healthy tissues around them. Bacterial plaque accumulation induces inflammatory changes in the soft tissues surrounding oral implants and it may lead to their progressive destruction (peri-implantitis) and ultimately to implant failure. Different treatment strategies for peri-implantitis have been suggested, however it is unclear which are the most effective. To identify the most effective interventions for treating peri-implantitis around osseointegrated dental implants. We searched the Cochrane Oral Health Group's Trials Register, CENTRAL, MEDLINE and EMBASE. Handsearching included several dental journals. We checked the bibliographies of the identified randomised controlled trials (RCTs) and relevant review articles for studies outside the handsearched journals. We wrote to authors of all identified RCTs, to more than 55 dental implant manufacturers and an Internet discussion group to find unpublished or ongoing RCTs. No language restrictions were applied. The last electronic search was conducted on 9 June 2011. All RCTs comparing agents or interventions for treating peri-implantitis around dental implants. Screening of eligible studies, assessment of the methodological quality of the trials and data extraction were conducted in duplicate and independently by two review authors. We contacted the authors for missing information. Results were expressed as random-effects models using mean differences for continuous outcomes and risk ratios for dichotomous outcomes with 95% confidence intervals (CI). Heterogeneity was to be investigated including both clinical and methodological factors. Fifteen eligible trials were identified, but six were excluded. The following interventions were compared in the nine included studies: different non-surgical interventions (five trials); adjunctive treatments to non-surgical interventions (one trial); different surgical interventions (two trials

  14. Managing peri-implant bone loss: current understanding.

    Science.gov (United States)

    Aljateeli, Manar; Fu, Jia-Hui; Wang, Hom-Lay

    2012-05-01

    With the improved macro- and micro-designs, dental implants enjoy a high survival rate. However, peri-implant bone loss has recently emerged to be the focus of implant therapy. As such, researchers and clinicians are in need of finding predictable techniques to treat peri-implant bone loss and stop its progression. Literature search on the currently available treatment modalities was performed and a brief description of each modality was provided. Numerous techniques have been proposed and none has been shown to be superior and effective in managing peri-implant bone loss. This may be because of the complex of etiological factors acting on the implant-supported prosthesis hence the treatment approach has to be individually tailored. Due to the lack of high-level clinical evidence on the management of peri-implant bone loss, the authors, through a literature review, attempt to suggest a decision tree or guideline, based on sound periodontal surgical principles, to aid clinicians in managing peri-implantitis associated bone loss. © 2011 Wiley Periodicals, Inc.

  15. Clinical and Radiographic Assessment of Peri-Implant Tissue in Posterior Areas with and Without the Need for Guided Bone Regeneration

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    Seyed Reza Arabi

    2016-07-01

    Full Text Available Background Dental implants are increasingly used in resorbed alveolar ridges, and the success of implants inserted concomitantly with guided bone regeneration (GBR needs to be evaluated. Objectives This study aimed to clinically and radiographically assess the peri-implant tissues in the posterior maxilla and mandible in cases in which dehiscence or fenestration occurred at the time of implant surgery and treated with GBR (simultaneously with implant placement in one session. A comparison was also made between the above-mentioned patients and controls in which implants were placed in intact bone (entire length of implant in bone. Patients and Methods This study was conducted on 12 patients as cases who received 17 standard implants (dehiscence or fenestration occurred after placement of 4 mm diameter standard implants and GBR was performed and 10 patients as the control group (those who received 17 standard implants, 4 mm in diameter and 10 mm in length, in adequate bone. Periapical (PA radiographs were obtained in the first 24 hours post-surgery. Radiographs were repeated at one month, at the time of loading (two months post-surgery, and at three and six months after loading to assess marginal bone loss. To assess the peri-implant soft tissue, thickness and width of the keratinized gingiva were evaluated. Data were analyzed using t-test and repeated measures analysis of variance. The level of significance was set to P = 0.05. Results The difference in distance from the bone crest to the implant shoulder between the two groups of cases and controls was significant at the following time points: baseline and 2 months post-surgery (P = 0.000, baseline and 6 months after loading (P = 0.01, 2 months post-surgery and 3 months after loading (P = 0.00, and 2 months post-surgery and 6 months after loading (P = 0.00. Changes in the width of the keratinized gingiva were not significant in the two groups of cases and controls at 2 months post-surgery (P = 0

  16. Influence of Peri-Implant Soft Tissue Condition and Plaque Accumulation on Peri-Implantitis: a Systematic Review

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    Mindaugas Pranskunas

    2016-09-01

    Full Text Available Objectives: To systematically examine influence of soft tissue condition and plaque accumulation around dental implants on peri-implantitis development. Material and Methods: An electronic literature search was conducted of two databases - MEDLINE (Ovid and EMBASE from 2011 to 2016. Sequential screenings at the title, abstract, and full-text levels were performed. Clinical human studies in the English language that had reported soft tissue condition or plaque accumulation influence on peri-implantitis development were included. The resulting articles were independently subjected to clear inclusion and exclusion criteria by two reviewers as follows. Results: The search resulted in 8 articles meeting the inclusion criteria. These studies reported gingival index, plaque index, pocket depth, bleeding on probing/modified bleeding index for sites with “adequate” (≥ 2 mm and “inadequate” (< 2 mm width of keratinized mucosa. Results demonstrated that the amount of keratinized mucosa has little influence on soft-tissue inflammation in the presence of good oral hygiene. However, suboptimal oral hygiene due to difficulty in access for plaque control in the areas of minimal keratinized mucosa may lead to greater tissue damage. Conclusions: In cases with insufficient keratinized gingiva in the vicinity of implants, the insufficiency does not necessarily mediate adverse effects on the hygiene management and soft tissue health condition. Nonetheless, the risk of the increase of gingival index, plaque index, pocket depth, bleeding on probing/modified bleeding index is present. Therefore, the presence of an appropriate amount of keratinized gingiva is required.

  17. Esthetic Outcome of Implant Supported Crowns With and Without Peri-Implant Conditioning Using Provisional Fixed Prosthesis: A Randomized Controlled Clinical Trial.

    Science.gov (United States)

    Furze, David; Byrne, Ashley; Alam, Sonia; Wittneben, Julia-Gabriela

    2016-12-01

    Achieving an optimal esthetic result using dental implants is challenging. Fixed implant-supported provisional crowns are often used to customize the emergence profile and to individualize the surrounding peri-implant soft tissue. The objective of this study is to evaluate whether the use of a provisional implant-supported crown leads to an esthetic benefit on implants that are placed in the esthetic zone. The null hypothesis is that there is no-difference between the two study groups. Twenty single implants (Bone Level, Straumann AG, Basel, Switzerland) were inserted in consecutive patients. After reopening, a randomization process assigned them to either cohort group 1: a provisional phase with soft tissue conditioning using the "dynamic compression technique" or cohort group 2: without a provisional. Implants were finally restored with an all-ceramic crown. Follow-up examinations were performed at 3 and 12 months including implant success and survival, clinical, and radiographic parameters. After 1 year all implants successfully integrated, mean values of combined modPES and WES were 16.7 for group 1 and 10.5 for Group 2. This was statistically significant. Mean bone loss after 1 year was -0.09 and -0.08 for groups 1 and 2, respectively, without being statistically significant. A provisional phase with soft tissue conditioning does improve the final esthetic result. © 2016 Wiley Periodicals, Inc.

  18. Peri-implantitis: a complex condition with non-linear characteristics

    NARCIS (Netherlands)

    Papantonopoulos, G.H.; Gogos, C.; Housos, E.; Bountis, T.; Loos, B.G.

    2015-01-01

    Aim To cluster peri-implantitis patients and explore non-linear patterns in peri-implant bone levels. Materials and Methods Clinical and radiographic variables were retrieved from 94 implant-treated patients (340 implants, mean 7.1 ± 4.1 years in function). Kernel probability density estimations on

  19. Intraindividual variation in core microbiota in peri-implantitis and periodontitis

    Science.gov (United States)

    Maruyama, Noriko; Maruyama, Fumito; Takeuchi, Yasuo; Aikawa, Chihiro; Izumi, Yuichi; Nakagawa, Ichiro

    2014-01-01

    The oral microbiota change dramatically with each part of the oral cavity, even within the same mouth. Nevertheless, the microbiota associated with peri-implantitis and periodontitis have been considered the same. To improve our knowledge of the different communities of complex oral microbiota, we compared the microbial features between peri-implantitis and periodontitis in 20 patients with both diseases. Although the clinical symptoms of peri-implantitis were similar to those of periodontitis, the core microbiota of the diseases differed. Correlation analysis revealed the specific microbial co-occurrence patterns and found some of the species were associated with the clinical parameters in a disease-specific manner. The proportion of Prevotella nigrescens was significantly higher in peri-implantitis than in periodontitis, while the proportions of Peptostreptococcaceae sp. and Desulfomicrobium orale were significantly higher in periodontitis than in peri-implantitis. The severity of the peri-implantitis was also species-associated, including with an uncultured Treponema sp. that correlated to 4 clinical parameters. These results indicate that peri-implantitis and periodontitis are both polymicrobial infections with different causative pathogens. Our study provides a framework for the ecologically different bacterial communities between peri-implantitis and periodontitis, and it will be useful for further studies to understand the complex microbiota and pathogenic mechanisms of oral polymicrobial diseases. PMID:25308100

  20. Effectiveness of Implant Therapy Analyzed in a Swedish Population: Prevalence of Peri-implantitis.

    Science.gov (United States)

    Derks, J; Schaller, D; Håkansson, J; Wennström, J L; Tomasi, C; Berglundh, T

    2016-01-01

    Peri-implantitis is an inflammatory disease affecting soft and hard tissues surrounding dental implants. As the global number of individuals that undergo restorative therapy through dental implants increases, peri-implantitis is considered as a major and growing problem in dentistry. A randomly selected sample of 588 patients who all had received implant-supported therapy 9 y earlier was clinically and radiographically examined. Prevalence of peri-implantitis was assessed and risk indicators were identified by multilevel regression analysis. Forty-five percent of all patients presented with peri-implantitis (bleeding on probing/suppuration and bone loss >0.5 mm). Moderate/severe peri-implantitis (bleeding on probing/suppuration and bone loss >2 mm) was diagnosed in 14.5%. Patients with periodontitis and with ≥4 implants, as well as implants of certain brands and prosthetic therapy delivered by general practitioners, exhibited higher odds ratios for moderate/severe peri-implantitis. Similarly, higher odds ratios were identified for implants installed in the mandible and with crown restoration margins positioned ≤1.5 mm from the crestal bone at baseline. It is suggested that peri-implantitis is a common condition and that several patient- and implant-related factors influence the risk for moderate/severe peri-implantitis (ClinicalTrials.gov NCT01825772). © International & American Associations for Dental Research 2015.

  1. Connective tissue grafts for thickening peri-implant tissues at implant placement. One-year results from an explanatory split-mouth randomised controlled clinical trial.

    Science.gov (United States)

    Wiesner, Günter; Esposito, Marco; Worthington, Helen; Schlee, Markus

    2010-01-01

    Nothing to declare. To evaluate whether connective tissue grafts performed at implant placement could be effective in augmenting peri-implant soft tissues. Ten partially edentulous patients requiring at least one single implant in the premolar or molar areas of both sides of the mandible were randomised to have one side augmented at implant placement with a connective soft tissue graft harvested from the palate or no augmentation. After 3 months of submerged healing, abutments were placed and within 1 month definitive crowns were permanently cemented. Outcome measures were implant success, any complications, peri-implant marginal bone level changes, patient satisfaction and preference, thickness of the soft tissues and aesthetics (pink aesthetic score) evaluated by an independent and blinded assessor 1 year after loading. One year after loading, no patients dropped out, no implants failed and no complications occurred. Both groups lost statistically significant amounts of peri-implant bone 1 year after loading (0.8 mm in the grafted group and 0.6 mm in the non-grafted group), but there was no statistically significant difference between groups. Soft tissues at augmented sites were 1.3 mm thicker (P Connective tissue grafts are effective in increasing soft tissue thickness, thus improving aesthetics. Longer follow-ups are needed to evaluate the stability of peri-implant tissues over time.

  2. Impact of Platform Switching on Peri-Implant Bone Remodeling around Short Implants in the Posterior Region, 1-Year Results from a Split-Mouth Clinical Trial

    NARCIS (Netherlands)

    Telleman, Gerdien; Raghoebar, Gerry M.; Vissink, Arjan; Meijer, Henny J. A.

    Aim: To assess the effect of platform switching on peri-implant bone remodeling around short implants (8.5mm) placed in the resorbed posterior mandibular and maxillary region of partially edentulous patients. Materials and Methods: Seventeen patients with one or more missing teeth at both sides in

  3. Management of peri-implant infections

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    K L Vandana

    2015-01-01

    Full Text Available The ever-increasing popularity of dental implants in recent years has been associated with the reported incidence of short-term and long-term complications such as peri-implant mucositis and peri-implantitis. Therapies proposed for treating peri-implantitis are based on the evidence available for the treatment of periodontitis, and are aimed at reducing the bacterial load within peri-implant pockets and decontaminating implant surfaces, and, in some cases, attempting afterward to bring about bone regeneration. The treatment of peri-implant infections comprises conservative (nonsurgical and surgical approaches. This paper reviews various treatment strategies used for the treatment of peri-implant diseases. There are many approaches suggested by various authors for the treatment of peri-implant diseases, but there is no “ideal peri-implant therapy” that has been described in the literature. There is no consensus regarding the treatment protocol as the studies conducted so far have had varying study designs, small sample sizes, and short follow-up periods.

  4. The effect of photodynamic therapy on pathogenic bacteria around peri-implant sulcus and in the cavity between abutment and implant after healing phase: A prospective clinical study.

    Science.gov (United States)

    Zhou, Lin-Yi; Shi, Jun-Yu; Zhu, Yu; Qian, Shu-Jiao; Lai, Hong-Chang; Gu, Ying-Xin

    2018-05-14

    To compare levels of pathogens from peri-implant sulcus versus abutment screw cavities after photodynamic therapy. Twenty patients were included. Photodynamic therapy (PDT) was applied both in sulcus and cavities after sampling following suprastructures loading, and repeated after 2 weeks. Two samples each containing four paper points were collected for each implant at baseline, 2 weeks, 3 months: (i) peri-implant sulcus and (ii) abutment screw cavities. Seventy-five percent ethanol was applied in another 20 patients as the control group in the same way. qPCR was used to quantify periodontal pathogens: Porphyromonas gingivalis, Fusobacterium nucleatum, Streptococcus mutans. PDT showed a better bacterial reduction than ethanol. P. g. and F. n. were most frequently detected, while less for S. m. P. gingivalis' proportion from both sites was significantly higher than the other two bacteria (P abutment screw cavities were always less than those from peri-implant sulcus and was significantly lower for total bacteria at 3 months (P abutment screw cavities significantly reduced at 3 months compared to baseline (P abutment screw cavities in the long run, suggesting PDT an effective way sterilizing inner surface of oral implant suprastrutures. Lasers Surg. Med. © 2018 Wiley Periodicals, Inc. © 2018 Wiley Periodicals, Inc.

  5. Group D. Initiator paper. Implants--peri-implant (hard and soft tissue) interactions in health and disease: the impact of explosion of implant manufacturers.

    Science.gov (United States)

    Ivanovski, Saso

    2015-01-01

    1. The best-documented implants have a threaded solid screw-type design and are manufactured from commercially pure (grade IV) titanium. There is good evidence to support implants ≥ 6 mm in length, and ≥ 3 mm in diameter. 2. Integrity of the seal between the abutment and the implant is important for several reasons, including minimization of mechanical and biological complications and maintaining marginal bone levels. Although the ideal design features of the implant-abutment connection have not been determined, an internal connection, micro-grooves at the implant collar, and horizontal offset of the implant-abutment junction (platform switch) appear to impart favorable properties. 3. Implants with moderately rough implant surfaces provide advantages over machined surfaces in terms of the speed and extent of osseointegration. While the favorable performances of both minimally and moderately rough surfaces are supported by long-term data, moderately rough surfaces provide superior outcomes in compromised sites, such as the posterior maxilla. 4. Although plaque is critical in the progression of peri-implantitis, the disease has a multi-factorial aetiology, and may be influenced by poor integrity of the abutment/implant connection. Iatrogenic factors, such as the introduction of a foreign body. (e.g., cement) below the mucosal margin, can be important contributors. 5. Clinicians should exercise caution when using a particular implant system, ensuring that the implant design is appropriate and supported by scientific evidence. Central to this is access to and participation in quality education on the impact that implant characteristics can have on clinical outcomes. Caution should be exercised in utilizing non-genuine restorative componentry that may lead to a poor implant-abutment fit and subsequent technical and biological complications.

  6. Peri-implant esthetics assessment and management

    Science.gov (United States)

    Balasubramaniam, Aarthi S.; Raja, Sunitha V.; Thomas, Libby John

    2013-01-01

    Providing an esthetic restoration in the anterior region of the mouth has been the basis of peri-implant esthetics. To achieve optimal esthetics, in implant supported restorations, various patient and tooth related factors have to be taken into consideration. Peri-implant plastic surgery has been adopted to improve the soft tissue and hard tissue profiles, during and after implant placement. The various factors and the procedures related to enhancement of peri-implant esthetics have been discussed in this review article. PMID:23878557

  7. The effect of one-time abutment placement on interproximal bone levels and peri-implant soft tissues: a prospective randomized clinical trial.

    Science.gov (United States)

    Molina, Ana; Sanz-Sánchez, Ignacio; Martín, Conchita; Blanco, Juan; Sanz, Mariano

    2017-04-01

    To compare the effect of placing the definitive abutment at the time of implant placement versus at a later stage, on the soft and hard tissue changes around dental implants. Platform-switched implants were placed in the posterior maxilla or mandible of partial edentulous patients and they were randomized to receive the definitive abutment at the moment of implant placement, or 6-12 weeks later. Final prostheses were delivered 2-4 weeks later. Radiographic assessment of vertical bone level changes (primary outcome), clinical status of peri-implant tissues, changes in soft tissues margin, papilla filling, patient-related outcomes and adverse events were assessed 6 and 12 months after loading. 60 implants were placed in 40 patients, replacing single or multiple absent teeth. One implant was lost 1 week after insertion (overall survival rate: 98.3%). A statistically significant greater bone resorption from surgery to 6 months post-loading was observed for those implants subjected to abutment change (control group: -1.24 ± 0.79 mm; test group: -0.61 ± 0.40 mm; P = 0.028). Periodontal clinical parameters and patient-related outcomes, however, did not demonstrate significant differences between groups at any time point. A significant increase in papilla height was observed from loading to 12 months in all implants (control group: 1.17 ± 1.47 mm; test group: 0.98 ± 0.89 mm) and a slight but not significant coronal migration of the gingival margin. The connection and disconnection of healing abutments is associated with significantly increased bone loss during the healing period between implant placement and 6 months post-loading, when compared to one-time abutment placement. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  8. Comparison of of Interleukin 23 Level in Gingival Crevicular Fluid between Peri-implantitis and Healthy Patients

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    Vahid Esfahanian

    2018-06-01

    Full Text Available Introduction: Peri-implantitis is characterized by irreversible lesions that are caused by microbial plaque, involving not only the soft tissue around the implant, but also the implant-supporting bone. In the peri-implant diseases, some cytokines are increased, and inflammatory mediators, which are observed in peri-implantitis, induce the activation of osteoclasts and bone resorption. The aim of this study was to compare the level of interleukin 23 (IL-23 in patients with peri-implantitis and those with healthy peri-implant tissue. Materials & methods: This clinical trial was conducted on 19 patients with peri-implantitis and 19 patients with healthy peri-implant tissue. The samples were collected from sulcular fluid/gingival pocket fluid by paper cone and placed in vials. The level of IL-23 was determined using ELISA reader. Furthermore, the relationship of IL-23 levels with bleeding, probing depth, and pus formation was analyzed. Data analysis was performed using independent t-test, Pearson correlation coefficient, and Spearman test. Results: According to the results, the level of IL-23 in the patients with peri-implantitis was significantly higher than that in the group with healthy peri-implant tissue (P

  9. Primary prevention of peri-implantitis: Managing peri-implant mucositis

    OpenAIRE

    Jepsen, Søren; Berglundh, Tord; Genco, Robert; Aass, Anne Merete; Demirel, Korkud; Derks, Jan; Figuero, Elena; Giovannoli, Jean Louis; Goldstein, Moshe; LAMBERT, France; Ortiz-Vigon, Alberto; Polyzois, Ioannis; Salvi, Giovanni; Schwarz, Frank; Serino, Giovanni

    2015-01-01

    Abstract AIMS: Over the past decades, the placement of dental implants has become a routine procedure in the oral rehabilitation of fully and partially edentulous patients. However, the number of patients/implants affected by peri-implant diseases is increasing. As there are--in contrast to periodontitis--at present no established and predictable concepts for the treatment of peri-implantitis, primary prevention is of key importance. The management of peri-implant mucositis is considere...

  10. Peri-Implant Bone Loss and Peri-Implantitis: A Report of Three Cases and Review of the Literature

    Directory of Open Access Journals (Sweden)

    Vanchit John

    2016-01-01

    Full Text Available Dental implant supported restorations have been added substantially to the clinical treatment options presented to patients. However, complications with these treatment options also arise due to improper patient selection and inadequate treatment planning combined with poor follow-up care. The complications related to the presence of inflammation include perimucositis, peri-implant bone loss, and peri-implantitis. Prevalence rates of these complications have been reported to be as high as 56%. Treatment options that have been reported include nonsurgical therapy, the use of locally delivered and systemically delivered antibiotics, and surgical protocols aimed at regenerating the lost bone and soft tissue around the implants. The aim of this article is to report on three cases and review some of the treatment options used in their management.

  11. Body fat indices and biomarkers of inflammation: a cross-sectional study with implications for obesity and peri-implant oral health.

    Science.gov (United States)

    Elangovan, Satheesh; Brogden, Kim A; Dawson, Deborah V; Blanchette, Derek; Pagan-Rivera, Keyla; Stanford, Clark M; Johnson, Georgia K; Recker, Erica; Bowers, Rob; Haynes, William G; Avila-Ortiz, Gustavo

    2014-01-01

    To examine the relationships between three measures of body fat-body mass index (BMI), waist circumference (WC), and total body fat percent-and markers of inflammation around dental implants in stable periodontal maintenance patients. Seventy-three subjects were enrolled in this cross-sectional assessment. The study visit consisted of a physical examination that included anthropologic measurements of body composition (BMI, WC, body fat %); intraoral assessments were performed (full-mouth plaque index, periodontal and peri-implant comprehensive examinations) and peri-implant sulcular fluid (PISF) was collected on the study implants. Levels of interleukin (IL)-1α, IL-1β, IL-6, IL-8, IL-10, IL-12, IL-17, tumor necrosis factor-α, C-reactive protein, osteoprotegerin, leptin, and adiponectin in the PISF were measured using multiplex proteomic immunoassays. Correlation analysis with body fat measures was then performed using appropriate statistical methods. After adjustments for covariates, regression analyses revealed statistically significant correlation between IL-1β in PISF and WC (R = 0.33; P = .0047). In this study in stable periodontal maintenance patients, a modest but statistically significant positive correlation was observed between the levels of IL-1β, a major proinflammatory cytokine in PISF, and WC, a reliable measure of central obesity.

  12. Microbiological and clinical effects of enamel matrix derivative and sustained-release micro-spherical minocycline application as an adjunct to non-surgical therapy in peri-implant mucosal inflammation.

    Science.gov (United States)

    Faramarzi, Masumeh; Goharfar, Zahra; Pourabbas, Reza; Kashefimehr, Atabak; Shirmohmmadi, Adileh

    2015-08-01

    The purpose of this study was to compare the microbial and clinical effects of mechanical debridement (MD) alone or in combination with the application of enamel matrix derivative (EMD) and sustained-release micro-spherical minocycline (MSM) for treatment of peri-implant mucosal infl ammation (PIMI). Subjects with at least one implant with PIMI were included and divided into control and two different test groups. In all three groups, MD was performed. In the MSM group, following MD, MSM was placed subgingivally around the implants. In the EMD group, after MD, EMD was placed in the sulcus around the implants. Sampling of peri-implant crevicular fl uid for microbial analysis with real-time polymerase chain reaction and recording of probing depth (PD) and bleeding on probing (BOP) were performed prior to as well as two weeks and three months after treatment. Median values and interquartile range were estimated for each variable during the various assessment intervals of the study. In all groups, at two weeks and three months, the counts of Porphyromonas gingivalis decreased significantly compared to baseline. Levels of P. gingivalis were significantly reduced in MSM (P<0.001) and EMD (P=0.026) groups compared to the control group. Also, clinical parameters improved significantly at two weeks and three months. Reduction of PD was significant in MSM (P<0.001) and EMD (P<0.001) groups. The decrease in BOP in the MSM, EMD, and control groups was 60%, 50%, and 20%, respectively. The use of MSM and EMD can be an adjunctive treatment for management of PIMI and improves clinical parameters and reduces P. gingivalis burden three months after treatment.

  13. Volumetric changes and peri-implant health at implant sites with or without soft tissue grafting in the esthetic zone, a retrospective case-control study with a 5-year follow-up.

    Science.gov (United States)

    Bienz, Stefan P; Jung, Ronald E; Sapata, Vitor M; Hämmerle, Christoph H F; Hüsler, Jürg; Thoma, Daniel S

    2017-11-01

    To evaluate the volumetric changes and peri-implant health at implant sites with and without previous soft tissue grafting over a 5-year observation period. In 18 partially edentulous patients, dental implants were placed in the esthetic zone (15-25) with simultaneous guided bone regeneration, followed by submerged healing. During the healing phase, eight patients (test) received a subepithelial connective tissue graft, whereas 10 patients (control) did not receive any soft tissue augmentation. Subsequently, abutment connection was performed and final reconstructions were inserted. Impressions were taken 1 week after crown insertion and at 5 years. Obtained casts were scanned and superimposed for volumetric and linear measurements. The mean distance (MD) in the mid-buccal area between the two surfaces and the differences in buccal marginal mucosal level (bMML change ) and in ridge width (RW change ) were evaluated. Peri-implant health was assessed using probing pocket depth (PPD) values, plaque index (PlI) and bleeding on probing (BOP). At a median follow-up time of 60.5 months a median MD of -0.38 mm (Min: -0.94; Max: -0.03) (test) and of -0.51 mm (Min: -0.76; Max: 0.05) (control) was calculated. The level of the margo mucosae (bMML change ) demonstrated a median loss of -0.42 mm (Min: -1.1; Max: -0.01) (test) and of -0.33 mm (Min: -1.02; Max: 0.00) (control). The median RW change ranged between -0.44 mm and -0.73 mm (test) and between -0.49 mm and -0.54 mm (control). Mean PPD values slightly increased, whereas PlI and BOP remained stable over time in both groups. None of the comparisons between the groups revealed statistically significant differences (P > 0.35). A small sample size must be considered, however. Limited by a retrospective case-control study design, implant sites with and without soft tissue grafting on the buccal side revealed only minimal volumetric and linear changes and stability of peri-implant parameters over 5 years. © 2017

  14. Peri-implant parameters, tumor necrosis factor-alpha, and interleukin-1 beta levels in vaping individuals.

    Science.gov (United States)

    Al-Aali, Khulud A; Alrabiah, Mohammed; ArRejaie, Aws S; Abduljabbar, Tariq; Vohra, Fahim; Akram, Zohaib

    2018-03-25

    To the author's knowledge, there has been no study that has assessed clinical, radiographic, and immunological peri-implant parameters among individuals vaping e-cigarette (e-cig). This pilot study aimed to compare clinical and radiographic peri-implant parameters and levels of tumor necrosis factor alpha (TNF-α) and interleukin (IL)-1β levels among individuals vaping e-cigs and never smoker (NS). Forty-seven individuals vaping e-cigs (group-1) and 45 NS (group-2) were included. Demographic and implant-related data were collected using a structured baseline questionnaire. Peri-implant plaque index (PI), bleeding on probing (BOP), and probing depth (PD) were recorded and peri-implant bone loss (PIBL) were assessed using standardized digital radiographs. Enzyme-linked immunosorbent assay was used to assess the levels of TNF-α and IL-1β in peri-implant sulcular fluid. Bleeding on probing showed statistically significantly higher values in group-2 patients as compared to group-1 patients (P vaping individuals. Increased levels of proinflammatory cytokines in peri-implant sulcular fluid may suggest greater local inflammatory response in vaping individuals for peri-implant inflammation. © 2018 Wiley Periodicals, Inc.

  15. Long time follow up of implant therapy and treatment of peri-implantitis.

    Science.gov (United States)

    Roos-Jansåker, Ann-Marie

    2007-01-01

    radiographs at remaining teeth before implant placement. (Paper I) Peri-implantitis is a common clinical entity after 9-14 years. (Paper II) Using the implant as the statistical unit the level of keratinized mucosa and pus were explanatory for a bone level at > or =3 threads (1.8 mm). When the patient was used as a statistical unit a history of periodontitis and smoking were explanatory for peri-implantitis. (Paper III) Animal research has demonstrated that re-osseointegration can occur. The majority of human studies were found to be case reports. Using submerged healing and bone transplants, bone fill can occur in peri-implant defects. (Paper IV) Surgical treatment of peri-implantitis using a bone substitute with or without a resorbable membrane resulted in similar pocket depth reduction, attachment gain and defect fill. (Paper V) Bone substitute in combination with a resorbable membrane and a submerged healing resulted in defect fill > or =2 threads (1.2 mm) in 81% of the implants. (Paper VI) In conclusion: 9-14 years after implant installation peri-implant lesions are a common clinical entity. Smokers and patients with a history of periodontal disease are at higher risk to develop peri-implantitis. Clinical improvements and defect fill can be obtained with various surgical techniques using a bone substitute.

  16. Erythritol-Enriched Air-Polishing Powder for the Surgical Treatment of Peri-Implantitis

    Directory of Open Access Journals (Sweden)

    Silvio Taschieri

    2015-01-01

    Full Text Available Peri-implantitis represents a major complication that can compromise the success and survival of implant-supported rehabilitations. Both surgical and nonsurgical treatment protocols were proposed to improve clinical parameters and to treat implants affected by peri-implantitis. A systematic review of the literature was performed on electronic databases. The use of air-polishing powder in surgical treatment of peri-implantitis was investigated. A total of five articles, of different study designs, were included in the review. A meta-analysis could not be performed. The data from included studies reported a substantial benefit of the use of air-polishing powders for the decontamination of implant surface in surgical protocols. A case report of guided bone regeneration in sites with implants affected by peri-implantitis was presented. Surgical treatment of peri-implantitis, though demanding and not supported by a wide scientific literature, could be considered a viable treatment option if an adequate decontamination of infected surfaces could be obtained.

  17. Peri-implant diseases: consensus report of the Sixth European Workshop on Periodontology

    NARCIS (Netherlands)

    Lindhe, J.; Meyle, J.; Berglundh, T.; Claffey, N.; De Bruyn, H.; Heitz-Mayfield, L.; Karoussis, I.; Könönen, E.; Mombelli, A.; Renvert, S.; van Winkelhoff, A.; Winkel, E.; Zitzmann, N.

    2008-01-01

    Issues related to peri-implant disease were discussed. It was observed that the most common lesions that occur, i.e. peri-implant mucositis and peri-implantitis are caused by bacteria. While the lesion of peri-implant mucositis resides in the soft tissues, peri-implantitis also affects the

  18. Peri-implant diseases : Consensus Report of the Sixth European Workshop on Periodontology

    NARCIS (Netherlands)

    Lindhe, Jan; Meyle, Joerg; van Winkelhoff, Arie

    Issues related to peri-implant disease were discussed. It was observed that the most common lesions that occur, i.e. peri-implant mucositis and peri-implantitis are caused by bacteria. While the lesion of peri-implant mucositis resides in the soft tissues, peri-implantitis also affects the

  19. The Efficacy of Supportive Peri-Implant Therapies in Preventing Peri-Implantitis and Implant Loss: a Systematic Review of the Literature

    Directory of Open Access Journals (Sweden)

    Ausra Ramanauskaite

    2016-09-01

    Full Text Available Objectives: To study the efficacy of supportive peri-implant therapies in preventing clinical and radiological signs of peri-implantitis and implant loss. Material and Methods: Longitudinal human studies, published between January 1, 2006, and February 1, 2016, were included based on an electronic search using MEDLINE and EMBASE databases and complemented by a manual search. Articles were included only if 1 they comprised a group of patients involved in/adhering to regular supportive peri-implant therapies (SPTs and a control group without such therapies or with poor adherence to them, 2 the protocol of the SPTs was clearly described and 3 the outcome was indicated by means of clinical/radiological changes or implant loss. Results: After initially identifying a total of 710 titles and abstracts, 12 full text articles were selected for eligibility assessment. Seven studies, three prospective and four retrospective, fulfilled the inclusion criteria for this review. The frequency of recall visits varied between the studies from a minimum of one visit every three months to an individually tailored regimen. In all the studies a lack of SPTs or poor adherence to them resulted in significantly higher frequencies of sites with mucosal bleeding, deepened peri-implant pockets or alveolar bone loss. In line with the above, a lack of/poor adherence to SPTs was associated with higher implant loss. Conclusions: To prevent peri-implantitis, an individually tailored supportive programme based on patient motivation and re-instruction in oral hygiene measures combined with professional implant cleaning seem to be crucial.

  20. Prevalence and risk indicators of peri-implantitis in Korean patients with a history of periodontal disease: a cross-sectional study.

    Science.gov (United States)

    Goh, Mi-Seon; Hong, Eun-Jin; Chang, Moontaek

    2017-08-01

    The aim of this study was to analyze the prevalence and risk indicators of peri-implantitis in Korean patients with history of periodontal disease. A total of 444 patients with 1,485 implants were selected from patients who had been treated at the Department of Periodontology, Chonbuk National University Dental Hospital between July 2014 and June 2015. A group with a history of peri-implantitis (HP) (370 patients with 1,189 implants) and a group with a current peri-implantitis (CP) (318 patients with 1,004 implants) were created based on the radiographic and clinical assessments of implants. The prevalence of peri-implantitis was calculated at both the patient and implant levels. The influence of risk variables on the occurrence of peri-implantitis was analyzed using generalized estimating equations analysis. The prevalence of peri-implantitis in the HP and CP groups ranged from 6.7% to 19.7%. The cumulative peri-implantitis rate in the HP group estimated with the Kaplan-Meier method was higher than that in the CP group over the follow-up period. Among the patient-related risk variables, supportive periodontal therapy (SPT) was the only significant risk indicator for the occurrence of peri-implantitis in both groups. In the analysis of implant-related variables, implants supporting fixed dental prosthesis (FDP) and implants with subjective discomfort were associated with a higher prevalence of peri-implantitis than single implants and implants without subjective discomfort in the HP group. The presence of subjective discomfort was the only significant implant-related variable predictive of peri-implantitis in the CP group. Within the limitations of this study, the prevalence of peri-implantitis in Korean patients with a history of periodontal disease was similar to that reported in other population samples. Regular SPT was important for preventing peri-implantitis. Single implants were found to be less susceptible to peri-implantitis than those supporting FDP

  1. Prognostic indicators for surgical peri-implantitis treatment

    NARCIS (Netherlands)

    de Waal, Yvonne C M; Raghoebar, Gerry M; Meijer, Henny J A; Winkel, Edwin G; van Winkelhoff, Arie Jan

    2016-01-01

    Objectives: Objective of this study was to identify prognostic indicators for the outcome of resective peri-implantitis treatment, by an analysis of the pooled data of two previously conducted randomized controlled trials. Material and methods: Data of 74 patients with peri-implantitis (187

  2. Gene expression of inflammation and bone healing in peri-implant crevicular fluid after placement and loading of dental implants. A kinetic clinical pilot study using quantitative real-time PCR.

    Science.gov (United States)

    Slotte, Christer; Lennerås, Maria; Göthberg, Catharina; Suska, Felicia; Zoric, Neven; Thomsen, Peter; Nannmark, Ulf

    2012-10-01

    Early detection of healing complications after placement of dental implants is a pressing but elusive goal. This paper proposes a non-invasive diagnostic tool for monitoring healing- and peri-implant disease specific genes, complementary to clinical evaluations. Eighteen partially edentulous patients were recruited to this pilot study. Three Brånemark TiUnite® implants/patient (Nobel Biocare) were placed in a one-stage procedure. Abutments with smooth or rough (TiUnite®) surface were placed. The test group (n = 9) received fixed bridges (immediate loading), whereas the control group (n = 9) implants were loaded 3 months after surgery. In addition to clinical measurements, crevicular fluid was collected using paper strips at the implant abutments 2, 14, 28, and 90 days postoperative. mRNA was extracted, purified, and converted to cDNA. Quantitative PCR assays for IL-1β, TNF-α, Osteocalcin (OC), Alkaline Phosphatase (ALP), Cathepsin K, Tartrate Resistant Acid Phosphatase, and 18S ribosomal RNA were designed and validated. Relative gene expression levels were calculated. One implant was lost in the control group and three in the test group. In one test patient, one implant showed lowered stability after 2 to 4 weeks and was unloaded. Later implant stability improved which allowed for loading after 3 to 4 months. TNF-α and ALP most commonly showed correlation with clinical parameters followed by IL-1β and OC. The strongest correlation was found for TNF-α with clinical complications at 2 and 14 days (p = .01/r = -048, and p = .0004/r = -0.56, respectively; test and control groups together). In some cases, gene expression predicted clinical complications (TNF-α, ALP, CK). This study is based on samples from few individuals; still, some genes showed correlation with clinical findings. Further studies are needed to refine and optimize the sampling process, to find the appropriate panel, and to validate gene expression for monitoring implant healing. © 2010 Wiley

  3. Antimicrobial mouthrinse use as an adjunct method in peri-implant biofilm control

    Directory of Open Access Journals (Sweden)

    Vinicius PEDRAZZI

    2014-01-01

    Full Text Available Great possibilities for oral rehabilitation emerged as a result of scientific consolidation, as well as a large number of dental implant applications. Along with implants appeared diseases such as mucositis and peri-implantitis, requiring management through several strategies applied at different stages. Biofilm accumulation is associated with clinical signs manifest by both tooth and implant inflammation. With this in mind, regular and complete biofilm elimination becomes essential for disease prevention and host protection. Chemical control of biofilms, as an adjuvant to mechanical oral hygiene, is fully justified by its simplicity and efficacy proven by studies based on clinical evidence. The purpose of this review was to present a consensus regarding the importance of antimicrobial mouthrinse use as an auxiliary method in chemical peri-implant biofilm control. The active ingredients of the several available mouthrinses include bis-biguanide, essential oils, phenols, quaternary ammonium compounds, oxygenating compounds, chlorine derivatives, plant extracts, fluorides, antibiotics and antimicrobial agent combinations. It was concluded that there is strong clinical evidence that at least two mouthrinses have scientifically proven efficacy against different oral biofilms, i.e., chlorhexidine digluconate and essential oils; however, 0.12% chlorhexidine digluconate presents a number of unwanted side effects and should be prescribed with caution. Chemical agents seem beneficial in controlling peri-implant inflammation, although they require further investigation. We recommend a scientifically proven antiseptic, with significant short and long term efficacy and with no unwanted side effects, for the prevention and/or treatment of peri-implant disease.

  4. Surgical Non-Regenerative Treatments for Peri-Implantitis: a Systematic Review

    Directory of Open Access Journals (Sweden)

    Ausra Ramanauskaite

    2016-09-01

    Full Text Available Objectives: The purposes of the present study were 1 to systematically review the literature on the surgical non-regenerative treatments of peri-implantitis and 2 to determine a predictable therapeutic option for the clinical management of peri-implantitis lesions. Material and Methods: The study search was performed on primary database MEDLINE and EMBASE from 2005 until 2016. Sequential screenings at the title, abstract, and full-text levels were performed. Clinical human studies in the English language that had reported changes in probing depth (PD and/or bleeding on probing (BOP and/or radiologic marginal bone level changes after peri-implantitis surgical non-regenerative treatment at 6-month follow-up or longer were included accordingly PRISMA guidelines. Results: The first electronic and hand search resulted in 765 citations. From 16 full-text articles reviewed, 6 were included in this systematic review. Surgical non-regenerative methods were found to be efficient in reducing clinical parameters. BOP and PD values were significantly decreased following implantoplasty and systematic administration of antibacterials, but not after local application of chemical compounds or diode laser. Similarly, significant improvement in clinical and radiographic parameters was found only after implantoplasty compared with resective surgery alone. We found significant heterogeneity in study designs and treatments provided among the pooled studies. All of the studies revealed an unclear or high risk of bias. Conclusions: Surgical non-regenerative treatment of peri-implantitis was found to be effective to reduce the soft tissue inflammation and decrease probing depth. More randomized controlled clinical trials are needed to assess the efficacy of surgical non-regenerative therapy of peri-implantitis.

  5. Oral microbiome and peri-implant diseases: where are we now?

    Directory of Open Access Journals (Sweden)

    Pokrowiecki R

    2017-11-01

    Full Text Available Rafal Pokrowiecki,1 Agnieszka Mielczarek,2 Tomasz Zareba,3 Stefan Tyski3,4 1Department of Head and Neck Surgery-Maxillofacial Surgery, Otolaryngology and Ophthalmology, Prof Stanislaw Popowski Voivoid Children Hospital, Olsztyn, 2Department of Conservative Dentistry, Medical University of Warsaw, 3Department of Antibiotics and Microbiology, National Medicines Institute, 4Department of Pharmaceutical Microbiology, Medical University of Warsaw, Warsaw, Poland Abstract: Peri-implant infective diseases (PIIDs in oral implantology are commonly known as peri-implant mucositis (PIM and periimplantitis (PI. While PIM is restricted to the peri-implant mucosa and is reversible, PI also affects implant-supporting bone and, therefore, is very difficult to eradicate. PIIDs in clinical outcome may resemble gingivitis and periodontitis, as they share similar risk factors. However, recent study in the field of proteomics and other molecular studies indicate that PIIDs exhibit significant differences when compared to periodontal diseases. This review aims to elucidate the current knowledge of PIIDs, their etiopathology and diversified microbiology as well as the role of molecular studies, which may be a key to personalized diagnostic and treatment protocols of peri-implant infections in the near future. Keywords: dental plaque, infection, titanium, microbiome, periimplantitis

  6. Salivary Concentration of Oxidative Stress Biomarkers in a Group of Patients with Peri-Implantitis: A Transversal Study.

    Science.gov (United States)

    Sánchez-Siles, Mariano; Lucas-Azorin, Javier; Salazar-Sánchez, Noemi; Carbonell-Meseguer, Luis; Camacho-Alonso, Fabio

    2016-10-01

    The purpose of this study was to know if peri-implantitis causes an increase in the total salivary concentration of oxidative stress markers. Seventy patients, 28 men and 42 women, 60 of them with dental implants, 30 of which had peri-implantitis and 30 were healthy. The remaining 10 were the control group: healthy subjects without implants. The average number of implants per patient was 4.70 ± 2.29 in the peri-implantitis group and 2 70 ± 2.11 in the control group. Periodontal/peri-implant variables were assessed, including bleeding index, gingival index, clinical attachment level, probing depth, presence of pockets larger than 4 and 6 mm, pain to percussion, suppuration, gingival hyperplasia or granuloma, crestal bone loss (both mesially and distally), evaluated through periapical radiography. Saliva samples from the 70 subjects were collected for measurement of malondialdehyde high performance liquid chromatography (HPLC) and myeloperoxidase (enzyme-linked immunosorbent assay analysis) concentrations. Implants affected with peri-implantitis had an average follow-up of 26.40 ± 7.97 months. 4.12% of implants with peri-implantitis had a painful response to percussion. 2.06% showed suppuration; 25.77% had granuloma. The mean crestal bone loss in implants wtih peri-implantitis was 3.78 ± 1.17 mm. Total salivary malondialdehyde concentration in the peri-implantitis group (0.52 ± 0.37 μM/l) was slightly higher than that in the group with healthy implants (0.40 ± 0.16 μM/l) and also slightly higher than that in the group of healthy patients without implants (0.41 ± 0.79 μM/l), although the difference was not statistically significant, p value = .442. Myeloperoxidase concentration was slightly higher in the peri-implantitis group (12.32 ± 2.17 ng/ml) than in the group with healthy implants (11.54 ± 2.80 ng/ml) and the group of healthy patients without implants (11.86 ± 2.67 ng/ml), without

  7. Decontamination Using a Desiccant with Air Powder Abrasion Followed by Biphasic Calcium Sulfate Grafting: A New Treatment for Peri-Implantitis

    Directory of Open Access Journals (Sweden)

    Giorgio Lombardo

    2015-01-01

    Full Text Available Peri-implantitis is characterized by inflammation and crestal bone loss in the tissues surrounding implants. Contamination by deleterious bacteria in the peri-implant microenvironment is believed to be a major factor in the etiology of peri-implantitis. Prior to any therapeutic regenerative treatment, adequate decontamination of the peri-implant microenvironment must occur. Herein we present a novel approach to the treatment of peri-implantitis that incorporates the use of a topical desiccant (HYBENX, along with air powder abrasives as a means of decontamination, followed by the application of biphasic calcium sulfate combined with inorganic bovine bone material to augment the intrabony defect. We highlight the case of a 62-year-old man presenting peri-implantitis at two neighboring implants in positions 12 and 13, who underwent access flap surgery, followed by our procedure. After an uneventful 2-year healing period, both implants showed an absence of bleeding on probing, near complete regeneration of the missing bone, probing pocket depth reduction, and clinical attachment gain. While we observed a slight mucosal recession, there was no reduction in keratinized tissue. Based on the results described within, we conclude that the use of HYBENX and air powder abrasives, followed by bone defect grafting, represents a viable option in the treatment of peri-implantitis.

  8. Influence of implant position on clinical crown length and peri-implant soft tissue dimensions at implant-supported single crowns replacing maxillary central incisors

    DEFF Research Database (Denmark)

    Peng, Min; Fei, Wei; Hosseini, Mandana

    2013-01-01

    The aims of the present study were to evaluate the influence of implant position on clinical crown length and marginal soft tissue dimensions at implant-supported single crowns of maxillary central incisors, and to validate the papilla index score (PIS). Twenty-five patients, who had lost one of ...... abutments and did not necessarily result in an increased crown length. The distal implant papilla heightwas obviously shorter, althoughthe mesial papilla height was similar to thatof the healthy dentition.The papilla index score was tested to be a valid index for papilla fill....

  9. A 10-year randomized clinical trial on the influence of splinted and unsplinted oral implants retaining mandibular overdentures: peri-implant outcome.

    Science.gov (United States)

    Naert, Ignace; Alsaadi, Ghada; van Steenberghe, Daniel; Quirynen, Marc

    2004-01-01

    This randomized controlled clinical trial aimed to evaluate the efficacy of splinted implants versus unsplinted implants in overdenture therapy over a 10-year period. The study sample comprised 36 completely edentulous patients, 17 men and 19 women (mean age 63.7 years). In each patient, 2 implants (Brånemark System, Nobel Biocare, Göteborg, Sweden) were placed in the interforaminal area. Three to 5 months after placement, they were connected to standard abutments. The patients were then rehabilitated with ball-retained overdentures, magnet-retained overdentures, or bar-retained overdentures (the control group). Patients were followed for 4, 12, 60, and 120 months post-abutment connection. Group means as well as linear regression models were fitted with attachment type and time as classification variables and corrected for simultaneous testing (Tukey). After 10 years, 9 patients had died and 1 was severely ill. Over 10 years, no implants failed. Mean Plaque Index, Bleeding Index, change in attachment level, Periotest values, and marginal bone level at the end of the follow-up period were not significantly different among the groups. The annual marginal bone loss, excluding the first months of remodeling, was comparable with that found around healthy natural teeth. The fact that no implants failed and that overall marginal bone loss after the first year of bone remodeling was limited suggested that implants in a 2-implant mandibular overdenture concept have an excellent prognosis in this patient population, irrespective of the attachment system used.

  10. Accurate registration of peri-implant soft tissues to create an optimal emergence profile

    Directory of Open Access Journals (Sweden)

    Ibraheem Fahad Alshiddi

    2015-01-01

    Full Text Available One of the challenges in restoring anterior space with implant restoration is maintaining the natural looking of peri-implant area. This case report presents a clinical procedure to create the soft tissue emergence profile for anterior maxillary teeth. A 49-year-old male presented with missing right maxillary lateral incisor. A provisional restoration was inserted 1 week after implant placement. Area of the provisional restoration related to the gingival tissue (transmucosal area was adjusted to create an optimum emergence profile. Two months later, an indirect method was used to accurately transfer the soft peri-implant tissues to the master cast. This clinical technique minimizes surgical procedure and avoids the possibility of soft tissue collapsing that may occur during the impression procedure.

  11. Location of unaccessible implant surface areas during debridement in simulated peri-implantitis therapy

    OpenAIRE

    Steiger-Ronay, Valerie; Merlini, Andrea; Wiedemeier, Daniel B.; Schmidlin, Patrick R.; Attin, Thomas; Sahrmann, Philipp

    2017-01-01

    Background An in vitro model for peri-implantitis treatment was used to identify areas that are clinically difficult to clean by analyzing the pattern of residual stain after debridement with commonly employed instruments. Methods Original data from two previous publications, which simulated surgical (SA) and non-surgical (NSA) implant debridement on two different implant systems respectively, were reanalyzed regarding the localization pattern of residual stains after instrumentation. Two bli...

  12. Peri-implant assessment via cone beam computed tomography and digital periapical radiography: an ex vivo study

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    Nicolau Silveira-Neto

    Full Text Available OBJECTIVES: This research evaluated detail registration in peri-implant bone using two different cone beam computer tomography systems and a digital periapical radiograph. METHODS: Three different image acquisition protocols were established for each cone beam computer tomography apparatus, and three clinical situations were simulated in an ex vivo fresh pig mandible: buccal bone defect, peri-implant bone defect, and bone contact. Data were subjected to two analyses: quantitative and qualitative. The quantitative analyses involved a comparison of real specimen measures using a digital caliper in three regions of the preserved buccal bone – A, B and E (control group – to cone beam computer tomography images obtained with different protocols (kp1, kp2, kp3, ip1, ip2, and ip3. In the qualitative analyses, the ability to register peri-implant details via tomography and digital periapical radiography was verified, as indicated by twelve evaluators. Data were analyzed with ANOVA and Tukey’s test (α=0.05. RESULTS: The quantitative assessment showed means statistically equal to those of the control group under the following conditions: buccal bone defect B and E with kp1 and ip1, peri-implant bone defect E with kp2 and kp3, and bone contact A with kp1, kp2, kp3, and ip2. Qualitatively, only bone contacts were significantly different among the assessments, and the p3 results differed from the p1 and p2 results. The other results were statistically equivalent. CONCLUSIONS: The registration of peri-implant details was influenced by the image acquisition protocol, although metal artifacts were produced in all situations. The evaluators preferred the Kodak 9000 3D cone beam computer tomography in most cases. The evaluators identified buccal bone defects better with cone beam computer tomography and identified peri-implant bone defects better with digital periapical radiography.

  13. Comparative evaluation of peri-implant tissues in patients wearing mandibular overdenture with different implant platforms

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    Laércio Almeida de Melo

    2017-01-01

    Full Text Available Background: The poor hygiene of peri-implant tissues causes inflammation at tissue-implant interface, which may impair the rehabilitation success. The aim of this study was to evaluate the influence of external hexagon and Morse taper implants on peri-implant health in patients wearing mandibular overdentures for 1 year. Materials and Methods: A total of 46 implants were evaluated, 28 external hexagon and 18 Morse taper. Plaque index in the mini-abutment, bleeding index, peri-implant inflammation, keratinized mucosa zone, probing depth, and marginal mucosa level were evaluated after 3 months and 1 year of prostheses insertion. Results: Deeper probing was found in the external hexagon group compared with Morse taper (P = 0.024 after 1 year of rehabilitation. Although the Morse taper group exhibited worse scenario of peri-implant inflammation than the external hexagon group (P = 0.001, both groups showed reduced inflammation after 1 year. A larger keratinized mucosa zone was observed with external hexagon implants (P = 0.020. No significant difference was found between the groups for plaque index in the mini-abutment, bleeding index, and marginal mucosa level. Conclusion: In a follow-up period of 1 year, it was concluded that the external hexagon group had a larger probing depth than the Morse taper group. However, better periodontal conditions about inflammation and keratinized mucosa zone were found in external hexagon implants. It was found no influence of implant platform on plaque index in the mini-abutment, bleeding index, and marginal mucosa level.

  14. The effects of Lactobacillus reuteri probiotics combined with azithromycin on peri-implantitis: A randomized placebo-controlled study.

    Science.gov (United States)

    Tada, Hiroaki; Masaki, Chihiro; Tsuka, Shintaro; Mukaibo, Taro; Kondo, Yusuke; Hosokawa, Ryuji

    2018-01-01

    The aim of this randomized placebo-controlled clinical study was to investigate the effects of a probiotic tablet containing Lactobacillus reuteri in peri-implantitis patients. Subjects comprised 30 patients with mild to moderate peri-implantitis. A baseline clinical examination and microbiological assessment were conducted, followed by an antibiotics treatment (azithromycin, 500mg, once a day for 3 days). Subjects were divided into probiotic and placebo groups. The clinical examination and bacterial sampling were performed 0, 4, 12 and 24 weeks after the intake of probiotics. The clinical examination included probing pocket depth (PPD), bleeding on probing (BOP), the modified plaque index (mPI), and modified bleeding index (mBI). The number of bacteria was assessed using the PCR-invader method. The Wilcoxon rank-sum test and Wilcoxon signed-rank test with Bonferroni corrections were used for data analyses. Although the number of bacteria decreased after the administration of azithromycin in both groups, they increased again thereafter. No significant difference was observed in bacterial numbers between the two groups. Although PPD in the probiotics group was significantly lower at 4 and 24 weeks than at 0 weeks (pprobiotics group than in the placebo group (pprobiotics prevent inflammation by affecting host responses rather than improving microbial flora in peri-implant sulci in peri-implantitis patients. Copyright © 2017 Japan Prosthodontic Society. Published by Elsevier Ltd. All rights reserved.

  15. Influence of bacterial colonization of the healing screws on peri-implant tissue

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    Simonetta D'Ercole

    2013-06-01

    Conclusion: The healing screws left in situ for a period of 90 days caused a peri-implant inflammation and the presence of periodontal pathogenic bacteria in the peri-implant sulcus, due to the plaque accumulation on screw surfaces.

  16. Peri-implant evaluation of osseointegrated implants subjected to orthodontic forces: results after three years of functional loading

    Directory of Open Access Journals (Sweden)

    Bruna de Rezende Marins

    2016-04-01

    Full Text Available ABSTRACT Objective: The objective of this study was to clinically and radiographically assess the peri-implant conditions of implants used as orthodontic anchorage. Methods: Two groups were studied: 1 a test group in which osseointegrated implants were used as orthodontic anchorage, with the application of 200-cN force; and 2 a control group in which implants were not subjected to orthodontic force, but supported a screw-retained prosthesis. Clinical evaluations were performed three, six and nine months after prosthesis installation and 1- and 3-year follow-up examinations. Intraoral periapical radiographs were obtained 30 days after surgical implant placement, at the time of prosthesis installation, and one, two and three years thereafter. The results were compared by Kruskal-Wallis test. Results: There was no statistically significant difference in clinical probing depth (p = 0.1078 or mesial and distal crestal bone resorption (p = 0.1832 during the study period. After three years of follow-up, the mean probing depth was 2.21 mm for the control group and 2.39 mm for the test group. The implants of the control group showed a mean distance between the bone crest and implant shoulder of 2.39 mm, whereas the implants used as orthodontic anchorage showed a mean distance of 2.58 mm at the distal site. Conclusion: Results suggest that the use of stable intraoral orthodontic anchorage did not compromise the health of peri-implant tissues or the longevity of the implant.

  17. Implant decontamination with phosphoric acid during surgical peri-implantitis treatment : a RCT

    NARCIS (Netherlands)

    Hentenaar, Diederik F M; De Waal, Yvonne C M; Strooker, Hans; Meijer, Henny J A; Van Winkelhoff, Arie-Jan; Raghoebar, Gerry M

    2017-01-01

    BACKGROUND: Peri-implantitis is known as an infectious disease that affects the peri-implant soft and hard tissue. Today, scientific literature provides very little evidence for an effective intervention protocol for treatment of peri-implantitis. The aim of the present randomized controlled trial

  18. Peri-implantitis in de algemene kaakchirurgische praktijk. Een pilotonderzoek

    NARCIS (Netherlands)

    Frank, M. H.; Baas, E. M.; de Lange, J.

    2012-01-01

    A peri-implant infection is a disorder with an annually increasing prevalence and incidence as a result of the increasing number of oral implants utilized. Based on existing literature, a patient-control study was carried out, as a pilot study, among patients who had been treated with oral implants

  19. Antibiotic resistance in human peri-implantitis microbiota

    NARCIS (Netherlands)

    Rams, Thomas E.; Degener, John E.; van Winkelhoff, Arie J.

    ObjectivesBecause antimicrobial therapy is often employed in the treatment of infectious dental implant complications, this study determined the occurrence of in vitro antibiotic resistance among putative peri-implantitis bacterial pathogens. MethodsSubmucosal biofilm specimens were cultured from

  20. Antibiotics in the treatment of peri-implantitis

    NARCIS (Netherlands)

    van Winkelhoff, Arie Jan

    2012-01-01

    Purpose: To review and discuss current literature on the use of systemically administered or locally delivered antibiotics in the treatment of peri-implantitis. Materials and methods: A literature search was conducted using MEDLINE through the Pub Med database of the US National Library of Medicine

  1. In Vitro Laser Treatment Platform Construction with Dental Implant Thread Surface on Bacterial Adhesion for Peri-Implantitis

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    Hsien-Nan Kuo

    2017-01-01

    Full Text Available This study constructs a standard in vitro laser treatment platform with dental implant thread surface on bacterial adhesion for peri-implantitis at different tooth positions. The standard clinical adult tooth jaw model was scanned to construct the digital model with 6 mm bone loss depth on behalf of serious peri-implantitis at the incisor, first premolar, and first molar. A cylindrical suite connected to the implant and each tooth root in the jaw model was designed as one experimental unit set to allow the suite to be replaced for individual bacterial adhesion. The digital peri-implantitis and suite models were exported to fulfill the physical model using ABS material in a 3D printer. A 3 mm diameter specimen implant on bacterial adhesion against Escherichia coli was performed for gram-negative bacteria. An Er:YAG laser, working with a chisel type glass tip, was moved from the buccal across the implant thread to the lingual for about 30 seconds per sample to verify the in vitro laser treatment platform. The result showed that the sterilization rate can reach 99.3% and the jaw model was not damaged after laser irradiation testing. This study concluded that using integrated image processing, reverse engineering, CAD system, and a 3D printer to construct a peri-implantitis model replacing the implant on bacterial adhesion and acceptable sterilization rate proved the feasibility of the proposed laser treatment platform.

  2. Prevalence of Peri-Implant Mucositis and Peri-Implantitis in Patients Treated with a Combination of Axial and Tilted Implants Supporting a Complete Fixed Denture

    Directory of Open Access Journals (Sweden)

    Nicolò Cavalli

    2015-01-01

    Full Text Available Objectives. The aim of this retrospective study was to assess the incidence and prevalence of peri-implant mucositis and peri-implantitis in patients with a fixed full-arch prosthesis supported by two axial and two tilted implants. Materials and Methods. Sixty-nine patients were included in the study. Each patient received a fixed full-arch prosthesis supported by two mesial axial and two distal tilted implants to rehabilitate the upper arch, the lower arch, or both. Three hundred thirty-six implants for 84 restorations were delivered. Patients were scheduled for follow-up visits every 6 months in the first 2 years and yearly after. At each follow-up visit peri-implant mucositis and peri-implantitis were diagnosed if present. Results. The overall follow-up range was from 12 to 130 months (mean 63,2 months. Three patients presented peri-implantitis. The prevalence of peri-implant mucositis ranged between 0 and 7,14% of patients (5,06% of implants while the prevalence of peri-implantitis varied from 0 to 4,55% of patients (3,81% of implants. Conclusions. The prevalence and incidence of peri-implant mucositis and peri-implantitis are lower than most of the studies in literature. Therefore this kind of rehabilitation could be considered a feasible option, on the condition of adopting a systematic hygienic protocol.

  3. The team approach to managing dental implant complications: strategies for treating peri-implantitis.

    Science.gov (United States)

    Rosen, Paul S

    2013-10-01

    Practitioners who are knowledgeable about the risk factors identified by the Consensus Report of the Sixth European Workshop on Periodontology and who are trained in techniques to eliminate or reduce them may be able to significantly improve long-term implant outcomes. A careful review of the literature suggests that this will include treatment planning, restoring a patient to periodontal heath before initiating care, appropriate implant selection, complete cement removal, and diligent recordkeeping that will track changes and enable early intervention should complications arise. In the case of the biologic complication of peri-implantitis, recent reports suggest that regenerative care may restore implants back to health.

  4. The peri-implant esthetics: An unforgettable entity

    Science.gov (United States)

    Dhir, Sangeeta

    2011-01-01

    Esthetic demands in today's world of dentistry are scaling new heights, and are driven by the zest to look beautiful. The soft tissue esthetics around implants is the foci of attention, which, if failed to meet, leads to unacceptable esthetic failure. The aim of this article is to give a brief overview of the various vital parameters influencing the esthetics governing the peri-implant area. PMID:21976830

  5. Bone Cells Dynamics during Peri-Implantitis: a Theoretical Analysis

    Directory of Open Access Journals (Sweden)

    Maria Helena Fernandes

    2016-09-01

    Full Text Available Objectives: The present manuscript aims a detailed characterization of the bone cells dynamics during physiological bone remodelling and, subsequently, to address the cellular and molecular mechanisms that play a fundamental role in the immune-inflammatory-induced uncoupled bone remodelling observed in peri-implantitis. Results: An intimate relationship between the immune system and bone is acknowledged to be determinant for bone tissue remodelling and integrity. Due to the close interaction of immune and bone cells, the two systems share a number of surface receptors, cytokines, signalling pathways and transcription factors that are involved in mutual regulatory mechanisms. This physiological equilibrium is disturbed in pathological conditions, as verified in peri-implantitis establishment and development. Activation of the innate and adaptive immune response, challenged by the local bacterial infection, induces the synthesis of high levels of a variety of pro- and anti-inflammatory cytokines that disturb the normal functioning of the bone cells, by uncoupling bone resorption and formation, ending up with a net alveolar bone loss and subsequent implant failure. Most data points to an immune-inflammatory induced osteoclast differentiation and function, as the major underlying mechanism to the uncoupled bone resorption to bone formation. Further, the disturbed functioning of osteoblasts, reflected by the possible expression of a fibro-osteoblastic phenotype, may also play a role. Conclusions: Alveolar bone loss is a hallmark of peri-implantitis. A great deal of data is still needed on the cellular and humoral crosstalk in the context of an integrated view of the osteoimmunologic interplay occurring in the peri-implantitis environment subjacent to the bone loss outcome.

  6. Incidence of peri-implant mucositis and peri-implantitis in edentulous patients with an implant-retained mandibular overdenture during a 10-year follow-up period

    NARCIS (Netherlands)

    Meijer, Henny J. A.; Raghoebar, Gerry M.; de Waal, Yvonne C. M.; Vissink, Arjan

    2014-01-01

    Objectives: The aim of this sub-analysis of two prospective studies was to assess the incidence of peri-implant mucositis and peri-implantitis in fully edentulous patients with an implant-retained mandibular overdenture during a 10-year follow-up period. Material and Methods: One hundred and fifty

  7. Haptoglobin gene polymorphisms in peri-implantitis and chronic periodontitis.

    Science.gov (United States)

    Ebadian, Ahmad R; Kadkhodazadeh, Mahdi; Naghavi, Seyed Hamid Hosseini; Torshabi, Maryam; Tamizi, Mahmood

    2014-05-01

    The haptoglobin-hemoglobin (Hp-Hb) complex plays a significant role in regulating immune responses and acts as a bacteriostatic agent. Haptoglobin polymorphisms result in different Hb binding affinities. This study sought to assess whether Hp 2-2 could be a genetic determinant for increasing the risk of peri-implantitis and chronic periodontitis. Of the Iranian subjects referred to the Department of Periodontics, Shahid Beheshti University, Tehran, 203 were entered into the study, including 117 patients and 86 periodontally healthy individuals. Polymerase chain reaction (PCR) was performed for genotyping. Data were analyzed by Kruskal-Wallis test using the SPSS statistics software package. The prevalence of Hp 2-2, 2-1, and 1-1 did not differ significantly between patients and healthy subjects (P > 0.05). The highest frequencies of Hp 1-1, 2-1, and 2-2 genotypes were seen in the control (7%), peri-implantitis (51%) and periodontitis (64%) groups, respectively. Haptoglobin polymorphisms may not play a role in development of peri-implantitis or chronic periodontitis among Iranians but we strongly suggest researchers to evaluate this polymorphism in further studies on larger sample sizes, different populations, and other types of periodontitis. © 2013 Wiley Publishing Asia Pty Ltd.

  8. Peri-Implant Crestal Bone Loss: A Putative Mechanism

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    Yuko Ujiie

    2012-01-01

    Full Text Available Purpose. The immunological mechanisms of peri-implant crestal bone loss have, hitherto, not been elucidated. We hypothesized that bacterial products from the microgap cause upregulation of cytokines in otherwise healthy peri-implant cells, which results in osteoclast formation and, ultimately, in bone resorption. Materials and Methods. We used RT-PCR and ELISA to assay mediators of osteoclastogenesis in rat and human macrophages (r-and hMO; bone marrow derived stromal cells (r-and hBMCs; and human gingival fibroblasts (hGF—with or without stimulation by LPS. TRAP positive multinucleate cells were assessed for their resorptive ability. Results. We show that IL-1α, IL-1β, and IL-6 were expressed by all examined cell types, and TNF-α was upregulated in hGF. Secretion of IL-1α and IL-1β proteins was stimulated in hMO by LPS, and IL-6 protein secretion was highly stimulated in hBMCs and hGF. Both LPS and RANKL stimulated macrophages to form osteoclast-like TRAP positive cells, which resorbed calcium phosphate substrates. Conclusion. Taken together, the results of our study support the hypothesis that bacterial endotoxins upregulate enhanced mediators of osteoclastogenesis in resident cells found in the healthy peri-implant compartment and that the local synergistic action of cytokines secreted by such cells results in the genesis of resorptively active osteoclasts.

  9. Abutment Material Effect on Peri-implant Soft Tissue Color and Perceived Esthetics.

    Science.gov (United States)

    Kim, Aram; Campbell, Stephen D; Viana, Marlos A G; Knoernschild, Kent L

    2016-12-01

    The purpose of this study was to evaluate the effect of implant abutment material on peri-implant soft tissue color using intraoral spectrophotometric analysis and to compare the clinical outcomes with patient and clinician perception and satisfaction. Thirty patients and four prosthodontic faculty members participated. Abutments were zirconia, gold-hued titanium, and titanium. Peri-implant mucosa color of a single anterior implant restoration was compared to the patient's control tooth. Spectrophotometric analysis using SpectroShade TM Micro data determined the color difference (ΔE, ΔL*, Δa*, Δb*) between the midfacial peri-implant soft tissue for each abutment material and the marginal gingiva of the control tooth. Color difference values of the abutment groups were compared using ANOVA (α = 0.05). Patient and clinician satisfaction surveys were also conducted using a color-correcting light source. The results of each patient and clinician survey question were compared using chi-square analysis (α = 0.05). Pearson correlation analyses identified the relationship between the total color difference (ΔE) and the patient/clinician perception and satisfaction, as well as between ΔE and tissue thickness. Zirconia abutments displayed significantly smaller spectrophotometric gingival color difference (ΔE) compared to titanium and gold-hued titanium abutments (respectively, 3.98 ± 0.99; 7.22 ± 3.31; 5.65 ± 2.11; p abutment materials, and no correlation between ΔE and the patient and clinician satisfaction. Patient satisfaction was significantly higher than clinician, and patient-perceived differences were lower than clinicians' (p abutments demonstrated significantly lower mean color difference compared to titanium or gold-hued titanium abutments as measured spectrophotometrically; however, no statistical difference in patient or clinician perception/satisfaction among abutment materials was demonstrated. Patients were significantly more satisfied than

  10. Does the number of implants have any relation with peri-implant disease?

    Directory of Open Access Journals (Sweden)

    Bernardo Born PASSONI

    2014-10-01

    Full Text Available Objective: The aim of this study was to evaluate the relationship between the number of pillar implants of implant-supported fixed prostheses and the prevalence of periimplant disease. Material and Methods: Clinical and radiographic data were obtained for the evaluation. The sample consisted of 32 patients with implant-supported fixed prostheses in function for at least one year. A total of 161 implants were evaluated. Two groups were formed according to the number of implants: G1 ≤5 implants and G2 >5 implants. Data collection included modified plaque index (MPi, bleeding on probing (BOP, probing depth (PD, width of keratinized mucosa (KM and radiographic bone loss (BL. Clinical and radiographic data were grouped for each implant in order to conduct the diagnosis of mucositis or peri-implantitis. Results: Clinical parameters were compared between groups using Student’s t test for numeric variables (KM, PD and BL and Mann-Whitney test for categorical variables (MPi and BOP. KM and BL showed statistically significant differences between both groups (p<0.001. Implants from G1 – 19 (20.43% – compared with G2 – 26 (38.24% – showed statistically significant differences regarding the prevalence of peri-implantitis (p=0.0210. Conclusion: It seems that more than 5 implants in total fixed rehabilitations increase bone loss and consequently the prevalence of implants with periimplantitis. Notwithstanding, the number of implants does not have any influence on the prevalence of mucositis.

  11. Comparative analysis between endometrial proteomes of pregnant and non-pregnant ewes during the peri-implantation period

    OpenAIRE

    Zhao, Haichao; Sui, Linlin; Miao, Kai; An, Lei; Wang, Dong; Hou, Zhuocheng; Wang, Rui; Guo, Min; Wang, Zhilong; Xu, Jiqiang; Wu, Zhonghong; Tian, Jianhui

    2015-01-01

    Background Early pregnancy failure has a profound impact on both human reproductive health and animal production. 2/3 pregnancy failures occur during the peri-implantation period; however, the underlying mechanism(s) remains unclear. Well-organized modification of the endometrium to a receptive state is critical to establish pregnancy. Aberrant endometrial modification during implantation is thought to be largely responsible for early pregnancy loss. Result In this study, using well-managed r...

  12. Peri-Implant Strain in an In Vitro Model.

    Science.gov (United States)

    Hussaini, Souheil; Vaidyanathan, Tritala K; Wadkar, Abhinav P; Quran, Firas A Al; Ehrenberg, David; Weiner, Saul

    2015-10-01

    An in vitro experimental model was designed and tested to determine the influence that peri-implant strain may have on the overall crestal bone. Strain gages were attached to polymethylmethacrylate (PMMA) models containing a screw-type root form implant at sites 1 mm from the resin-implant interface. Three different types of crown superstructures (cemented, 1-screw [UCLA] and 2-screw abutment types) were tested. Loading (1 Hz, 200 N load) was performed using a MTS Mechanical Test System. The strain gage data were stored and organized in a computer for statistical treatment. Strains for all abutment types did not exceed the physiological range for modeling and remodeling of cancellous bone, 200-2500 με (microstrain). For approximately one-quarter of the trials, the strain values were less than 200 με the zone for bone atrophy. The mean microstrain obtained was 517.7 με. In conclusion, the peri-implant strain in this in vitro model did not exceed the physiologic range of bone remodeling under axial occlusal loading.

  13. Microbiota in experimental periodontitis and peri-implantitis in dogs.

    Science.gov (United States)

    Charalampakis, Georgios; Abrahamsson, Ingemar; Carcuac, Olivier; Dahlén, Gunnar; Berglundh, Tord

    2014-09-01

    To analyze the microbial profile around teeth and implants following ligature removal in experimental periodontitis and peri-implantitis in dogs. Four implants with similar geometry and with two different surface characteristics (implant A: turned/implant B: TiUnite; NobelBiocare AB) were placed pairwise in the right side of the mandible 3 months after tooth extraction in five dogs. Experimental periodontitis and peri-implantitis were initiated 3 months later by ligature placement around implants and mandibular premolars and plaque formation. The ligatures were removed after 10 weeks. Microbial samples were obtained using paper points immediately after ligature removal, at 10 and 25 weeks after ligature removal. The microbiological analysis was performed by "checkerboard" DNA-DNA hybridization, including a panel of 16 bacterial species. The amount of bone loss that occurred during the period following ligature removal was significantly larger at implants with a modified surface than at implants with a turned surface and at teeth. The microbiological analysis revealed that the total bacterial load increased during the period following ligature removal and established an anaerobic Gram-negative microflora. It is suggested that the large variation in regard to the microbial profiles makes interpretation of a correlation between disease progression and microbial profiles difficult. © 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  14. Regenerative Medicine for Periodontal and Peri-implant Diseases.

    Science.gov (United States)

    Larsson, L; Decker, A M; Nibali, L; Pilipchuk, S P; Berglundh, T; Giannobile, W V

    2016-03-01

    The balance between bone resorption and bone formation is vital for maintenance and regeneration of alveolar bone and supporting structures around teeth and dental implants. Tissue regeneration in the oral cavity is regulated by multiple cell types, signaling mechanisms, and matrix interactions. A goal for periodontal tissue engineering/regenerative medicine is to restore oral soft and hard tissues through cell, scaffold, and/or signaling approaches to functional and aesthetic oral tissues. Bony defects in the oral cavity can vary significantly, ranging from smaller intrabony lesions resulting from periodontal or peri-implant diseases to large osseous defects that extend through the jaws as a result of trauma, tumor resection, or congenital defects. The disparity in size and location of these alveolar defects is compounded further by patient-specific and environmental factors that contribute to the challenges in periodontal regeneration, peri-implant tissue regeneration, and alveolar ridge reconstruction. Efforts have been made over the last few decades to produce reliable and predictable methods to stimulate bone regeneration in alveolar bone defects. Tissue engineering/regenerative medicine provide new avenues to enhance tissue regeneration by introducing bioactive models or constructing patient-specific substitutes. This review presents an overview of therapies (e.g., protein, gene, and cell based) and biomaterials (e.g., resorbable, nonresorbable, and 3-dimensionally printed) used for alveolar bone engineering around teeth and implants and for implant site development, with emphasis on most recent findings and future directions. © International & American Associations for Dental Research 2015.

  15. [Study on Microbial Diversity of Peri-implantitis Subgingival by High-throughput Sequencing].

    Science.gov (United States)

    Li, Zhi-jie; Wang, Shao-guo; Li, Yue-hong; Tu, Dong-xiang; Liu, Shi-yun; Nie, Hong-bing; Li, Zhi-qiang; Zhang, Ju-mei

    2015-07-01

    To study microbial diversity of peri-implantitis subgingival with high-throughput sequencing, and investigate microbiological etiology of peri-implantitis. Subgingival plaques were sampled from the patients with peri-implantitis (D group) and non-peri-implantitis subjects (N group). The microbiological diversity of the subgingival plaques was detected by sequencing V4 region of 16S rRNA with Illumina Miseq platform. The diversity of the community structure was analyzed using Mothur software. A total of 156 507 gene sequences were detected in nine samples and 4 402 operational taxonomic units (OTUs) were found. Selenomonas, Pseudomonas, and Fusobacterium were dominant bacteria in D group, while Fusobacterium, Veillonella and Streptococcus were dominant bacteria in N group. Differences between peri-implantitis and non-peri-implantitis bacterial communities were observed at all phylogenetic levels by LEfSe, which was also found in PcoA test. The occurrence of peri-implantitis is not only related to periodontitis pathogenic microbe, but also related with the changes of oral microbial community structure. Treponema, Herbaspirillum, Butyricimonas and Phaeobacte may be closely related to the occurrence and development of peri-implantitis.

  16. Microbial Characteristics of Peri-Implantitis : A Case-Control Study

    NARCIS (Netherlands)

    de Waal, Y C M; Eijsbouts, H V L C; Winkel, E G; van Winkelhoff, A J

    BACKGROUND: Aim of this case-control study was to compare oral microbiological characteristics of subjects with healthy peri-implant conditions and subjects with peri-implantitis and to explore the influence of various patient-related and implant-related factors on the microbiological

  17. Actinobacillus actinamycetemcomitans-associated peri-implantitis in an edentulous patient - A case report

    NARCIS (Netherlands)

    van Winkelhoff, AJ; Wolf, JWA

    Background: Peri-implantitis is a risk factor for implant loss. Late bacterial infection of the peri-implant tissues and loss of alveolar bone in edentulous patients is caused by commensal oral anaerobic bacteria. In partially edentulous patients, Porphyromonas gingivalis and occasionally

  18. Implant surface preparation in the surgical treatment of experimental peri-implantitis with autogenous bone graft and ePTFE membrane in cynomolgus monkeys

    DEFF Research Database (Denmark)

    Schou, Søren; Holmstrup, Palle; Jørgensen, Torben

    2003-01-01

    peri-implantitis; treatment; implant surface preparation; nonhuman primates; histology; stereology......peri-implantitis; treatment; implant surface preparation; nonhuman primates; histology; stereology...

  19. [Treatment of periprosthetic and peri-implant fractures : modern plate osteosynthesis procedures].

    Science.gov (United States)

    Raschke, M J; Stange, R; Kösters, C

    2012-11-01

    Periprosthetic fractures are increasing not only due to the demographic development with high life expectancy, the increase in osteoporosis and increased prosthesis implantation but also due to increased activity of the elderly population. The therapeutic algorithms are manifold but general valid rules for severe fractures are not available. The most commonly occurring periprosthetic fractures are proximal and distal femoral fractures but in the clinical routine fractures of the tibial head, ankle, shoulder, elbow and on the borders to other implants (peri-implant fractures) and complex interprosthetic fractures are being seen increasingly more. It is to be expected that in the mid-term further options, such as cement augmentation of cannulated polyaxial locking screws will extend the portfolio of implants for treatment of periprosthetic fractures. The aim of this review article is to present the new procedures for osteosynthesis of periprosthetic fractures.

  20. Influence of abutment material on peri-implant soft tissues in anterior areas with thin gingival biotype: a multicentric prospective study.

    Science.gov (United States)

    Lops, Diego; Stellini, Edoardo; Sbricoli, Luca; Cea, Niccolò; Romeo, Eugenio; Bressan, Eriberto

    2017-10-01

    The aim of the present clinical trial was to analyze, through spectrophotometric digital technology, the influence of the abutment material on the color of the peri-implant soft tissue in patients with thin gingival biotype. Thirty-seven patients received an endosseous dental implant in the anterior maxilla. At time of each definitive prosthesis delivery, an all-ceramic crown has been tried on gold, titanium and zirconia abutment. Peri-implant soft-tissue color has been measured through a spectrophotometer after the insertion of each single abutment. Also facial peri-implant soft-tissue thickness was measured at the level of the implant neck through a caliper. A specific software has been utilized to identify a standardized tissue area and to collect the data before the statistical analysis in Lab* color space. ΔE parameters of the selected abutments were tested for correlation with mucosal thickness. Pearson correlation test was used. Only 15 patients met the study inclusion criteria on peri-implant soft-tissue thickness. Peri-implant soft-tissue color was different from that around natural teeth, no matter which type of restorative material was selected. Measurements regarding all the abutments were above the critical threshold of ΔE 8.74 for intraoral color distinction by the naked eye. The ΔE mean values of gold and zirconium abutments were similar (11.43 and 11.37, respectively) and significantly lower (P = 0.03 and P = 0.04, respectively) than the titanium abutment (13.55). In patients with a facial soft-tissue thickness ≤2 mm, the ΔE mean value of gold and zirconia abutments was significantly lower than that of titanium abutments (P = 0.03 and P = 0.04, respectively) and much more close to the reference threshold of 8.74. For peri-implant soft tissue of ≤2 mm, gold or zirconia abutments could be selected in anterior areas treatment. Moreover, the thickness of the peri-implant soft tissue seemed to be a crucial factor in the abutment impact

  1. Probing around implants and teeth with healthy or inflamed peri-implant mucosa/gingival. A histologic comparison in cynomolgus monkeys. (Macaca fascicularis)

    DEFF Research Database (Denmark)

    Schou, Søren; Holmstrup, Palle; Stoltze, K.

    2002-01-01

    Osseointegrated oral implants; teeth; phathology; peri-implant mucositis; gingivitis; peri-implantitis; periodontitis; diagnosis; probing depth; non-human primates; cynomolgus monkeys: Macaca fascicularis......Osseointegrated oral implants; teeth; phathology; peri-implant mucositis; gingivitis; peri-implantitis; periodontitis; diagnosis; probing depth; non-human primates; cynomolgus monkeys: Macaca fascicularis...

  2. Surgical Regenerative Treatments for Peri-Implantitis: Meta-analysis of Recent Findings in a Systematic Literature Review

    Directory of Open Access Journals (Sweden)

    Povilas Daugela

    2016-09-01

    Full Text Available Objectives: The purpose of the present study was to systematically review the literature on the surgical regenerative treatment of the peri-implantitis and to determine an effective therapeutic predictable option for their clinical management. Material and Methods: The study searched MEDLINE and EMBASE databases from 2006 to 2016. Clinical human studies that had reported changes in probing depth (PD and/or bleeding on probing (BOP and/or radiologic marginal bone level (RBL changes after peri-implantitis surgical treatment at 12-month follow-up or longer were included accordingly to PRISMA guidelines. Results: The initial search obtained 883 citations. After screening and determination of eligibility, 18 articles were included in the review. The meta-analysis of selected studies revealed that the weighted mean RBL fill was 1.97 mm (95% confidence interval [CI] = 1.58 to 2.35 mm, PD reduction was 2.78 mm (95% CI = 2.31 to 3.25 mm, and BOP reduced by 52.5% (95% CI = 41.6 to 63.1%. Defect fill in studies using and not using barrier membranes for graft coverage was 1.86 mm (95% CI = 1.36 to 2.36 mm and 2.12 mm (95% CI = 1.46 to 2.78 mm correspondingly. High heterogeneity among the studies regarding defects morphology, surgical protocols, and selection of biomaterials were found. Conclusions: All included studies underlined an improvement of clinical conditions after the surgical regenerative treatment of peri-implantitis, however, there is a lack of scientific evidence in the literature regarding the superiority of the regenerative versus non-regenerative surgical treatment. The presence of a barrier membrane or submergence in the regenerative procedure does not seem to be fundamental in order to obtain clinical success of the surgery.

  3. Analysis of microbiota associated with peri-implantitis using 16S rRNA gene clone library

    Directory of Open Access Journals (Sweden)

    Tatsuro Koyanagi

    2010-05-01

    Full Text Available Background: Peri-implantitis (PI is an inflammatory disease which leads to the destruction of soft and hard tissues around osseointegrated implants. The subgingival microbiota appears to be responsible for peri-implant lesions and although the complexity of the microbiota has been reported in PI, the microbiota responsible for PI has not been identified. Objective: The purpose of this study was to identify the microbiota in subjects who have PI, clinically healthy implants, and periodontitis-affected teeth using 16S rRNA gene clone library analysis to clarify the microbial differences. Design: Three subjects participated in this study. The conditions around the teeth and implants were evaluated based on clinical and radiographic examinations and diseased implants, clinically healthy implants, and periodontally diseased teeth were selected. Subgingival plaque samples were taken from the deepest pockets using sterile paper points. Prevalence and identity of bacteria was analyzed using a 16S rRNA gene clone library technique. Results: A total of 112 different species were identified from 335 clones sequenced. Among the 112 species, 51 (46% were uncultivated phylotypes, of which 22 were novel phylotypes. The numbers of bacterial species identified at the sites of PI, periodontitis, and periodontally healthy implants were 77, 57, and 12, respectively. Microbiota in PI mainly included Gram-negative species and the composition was more diverse when compared to that of the healthy implant and periodontitis. The phyla Chloroflexi, Tenericutes, and Synergistetes were only detected at PI sites, as were Parvimonas micra, Peptostreptococcus stomatis, Pseudoramibacter alactolyticus, and Solobacterium moorei. Low levels of periodontopathic bacteria, such as Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans, were seen in peri-implant lesions. Conclusions: The biofilm in PI showed a more complex microbiota when compared to periodontitis and

  4. Air Abrasive Disinfection of Implant Surfaces in a Simulated Model of Peri-Implantitis

    Science.gov (United States)

    2016-06-01

    may be higher in patients diagnosed with periodontal disease, systemic chronic disease such as diabetes or patients who smoke tobacco.9,10 One of...flora associated with peri-implantitis is similar to that found in chronic periodontitis .14 Gram-positive, facultative bacteria are normally...9):1490-5. 20. Heitz-Mayfield LJ, Lang NP. Comparative biology of chronic and aggressive periodontitis vs. peri-implantitis. Periodontol 2000

  5. Comparison of peri-implant bone loss between conventional drilling with irrigation versus low-speed drilling without irrigation.

    Science.gov (United States)

    Pellicer-Chover, H; Peñarrocha-Oltra, D; Aloy-Prosper, A; Sanchis-Gonzalez, J-C; Peñarrocha-Diago, M-A; Peñarrocha-Diago, M

    2017-11-01

    To compare the technique of high speed drilling with irrigation and low speed drilling without irrigation in order to evaluate the success rate and peri-implant bone loss at 12 months of follow-up. A randomized, controlled, parallel-group clinical trial was carried out in patients requiring dental implants to rehabilitate their unitary edentulism. Patients were recruited from the Oral Surgery Unit of the University of Valencia (Spain) between September 2014 and August 2015. Patients who met the inclusion criteria were randomized to two groups: group A (high-speed drilling with irrigation) and group B (low-speed drilling without irrigation). The success rate and peri-implant bone loss were recorded at 12 months of follow-up. Twenty-five patients (9 men and 16 women) with 30 implants were enrolled in the study: 15 implants in group A and 15 implants in group B. The mean bone loss of the implants in group A and group B was 0.83 ± 0.73 mm and 0.62 ± 0.70 mm, respectively (p> 0.05). In the maxilla, the bone loss was 1.04 ± 0.63 mm in group A and 0.71 ± 0.36 mm in group B (p> 0.05), while bone loss in the mandible was 0.59 ± 0.80 mm in group A and 0.69 ± 0.77 mm in group B (p> 0.05). The implant success rate at 12 months was 93.3% in group A and 100% in group B. Within the limitations of the study, the low-speed drilling technique presented peri-implant bone loss outcomes similar to those of the conventional drilling technique at 12 months of follow-up.

  6. The influence of implant-abutment connection to peri-implant bone loss: A systematic review and meta-analysis.

    Science.gov (United States)

    Caricasulo, Riccardo; Malchiodi, Luciano; Ghensi, Paolo; Fantozzi, Giuliano; Cucchi, Alessandro

    2018-05-15

    Different implant-abutment connections are available and it has been claimed they could have an effect on marginal bone loss. The aim of this review is to establish if implant connection configuration influences peri-implant bone loss (PBL) after functional loading. A specific question was formulated according to the Population, Intervention, Control, and Outcome (PICO): Does the type of implant-abutment connection (external, internal, or conical) have an influence on peri-implant bone loss? A PubMed/MEDLINE electronic search was conducted to identify English language publications published in international journals during the last decade (from 2006 to 2016). The search was conducted by using the Medical Subject Headings (MeSH) keywords "dental implants OR dental abutment AND external connection OR internal connection OR conical connection OR Morse Taper." Selected studies were randomized clinical trials and prospective studies; in vitro studies, case reports and retrospective studies were excluded. Titles and abstracts and, in the second phase, full texts, were evaluated autonomously and in duplicate by two reviewers. A total of 1649 articles were found, but only 14 studies met the pre-established inclusion criteria and were considered suitable for meta-analytic analysis. The network meta-analysis (NMA) suggested a significant difference between the external and the conical connections; this was less evident for the internal and conical ones. Platform-switching (PS) seemed to positively affect bone levels, non-regarding the implant-connection it was applied to. Within the limitations of this systematic review, it can be concluded that crestal bone levels are better maintained in the short-medium term when internal kinds of interface are adopted. In particular, conical connections seem to be more advantageous, showing lower peri-implant bone loss, but further studies are necessary to investigate the efficacy of implant-abutment connection on stability of crestal

  7. Periodontopathogen and Epstein-Barr virus-associated periapical periodontitis may be the source of retrograde infectious peri-implantitis.

    Science.gov (United States)

    Verdugo, Fernando; Castillo, Ana; Simonian, Krikor; Castillo, Francisca; Farez-Vidal, Esther; D'Addona, Antonio

    2015-02-01

    Herpesviral-bacterial synergism may play a role in periodontitis and peri-implantitis etiopathogenesis. Periapical periodontitis (PP) lesions can predict future apical peri-implantitis complications. This pilot study aimed to substantiate herpesviral-bacterial coinfection in symptomatic (SP) and asymptomatic (AP) PP and assess associations with periodontopathogen salivary contamination in patients receiving implants. Polymerase chain reaction (PCR)-based identification was performed on PP granulation tissue (GT) from 33 SP and AP patients and compared with unstimulated whole saliva. Quantitative PCR evaluated Epstein-Barr virus (EBV) and cytomegalovirus copy counts. SP GT had higher proportions of periodontopathogens. Symptomatic patients were 3.7 times more likely to be infected with EBV than AP (p = .07; 95% CI: 0.8-16.2). SP were 2.9, 2.1, 3.6, and 1.6 times more likely to be infected with Treponema denticola, Prevotella intermedia, Aggregatibacter actinomycetemcomitans, and Porphyromonas gingivalis, respectively. The odds ratio of EBV infecting PP lesions was two times higher in those positive for the virus in saliva. Saliva Tannerella forsythia-positive patients were 15 times more likely to present this pathogen in PP lesions (p = .038). Saliva EBV-positive individuals were 7 and 3.5 times more likely to yield GT contamination with T. forsythia and T. denticola, respectively. EBV copy counts were significantly higher in SP (p < .01). A causal association between EBV, specific bacterial anaerobic infection, and symptomatic PP is likely. EBV high prevalence underscores the viral etiological importance. Salivary EBV contamination is likely to be associated with viral and bacterial GT infection. Saliva PCR analysis can be a good predictor of GT specific infection and help establish antimicrobial therapy. If confirmed by prospective longitudinal clinical trials, antiviral therapy could possibly benefit SP and nonresponsive to treatment individuals

  8. Constant strain rate and peri-implant bone modeling: an in vivo longitudinal micro-CT analysis.

    Science.gov (United States)

    De Smet, Els; Jaecques, Siegfried V N; Wevers, Martine; Sloten, Jos Vander; Naert, Ignace E

    2013-06-01

    Strain, frequency, loading time, and strain rate, among others, determine mechanical parameters in osteogenic loading. We showed a significant osteogenic effect on bone mass (BM) by daily peri-implant loading at 1.600µε.s(-1) after 4 weeks. To study the peri-implant osteogenic effect of frequency and strain in the guinea pig tibia by in vivo longitudinal micro-computed tomography (CT) analysis. One week after implant installation in both hind limb tibiae, one implant was loaded daily for 10' during 4 weeks, while the other served as control. Frequencies (3, 10, and 30Hz) and strains varied alike in the three series to keep the strain rate constant at 1.600µε.s(-1) . In vivo micro-CT scans were taken of both tibiae: 1 week after implantation but before loading (v1) and after 2 (v2) and 4 weeks (v3) of loading as well as postmortem (pm). BM (BM (%) bone-occupied area fraction) was calculated as well as the difference between test and control sides (delta BM) RESULTS: All implants (n=78) were clinically stable at 4 weeks. Significant increase in BM was measured between v1 and v2 (pimplant marrow 500 Region of Interest already 2 weeks after loading (p=.01) and was significantly larger (11%) in series 1 compared with series 2 (p=.006) and 3 (p=.016). Within the constraints of constant loading time and strain rate, the effect of early implant loading on the peri-implant bone is strongly dependent on strain and frequency. This cortical bone model has shown to be most sensitive for high force loading at low frequency. © 2011 Wiley Periodicals, Inc.

  9. The influence of the periodontal biotype on peri-implant tissues around immediate implants with and without xenografts. Clinical and micro-computerized tomographic study in small Beagle dogs.

    Science.gov (United States)

    Maia, Luciana P; Reino, Danilo M; Muglia, Valdir A; de Souza, Sérgio L S; Palioto, Daniela B; Novaes, Arthur B

    2015-01-01

    Soft tissues and buccal bone plate remodeling after immediate implantation in sockets with thin buccal bone, using the flapless approach with or without bone graft into the buccal gap, was compared between sites with thin and normal gingiva. Eight dogs had the gingiva of one side of the mandible thinned, the mandibular premolars were extracted without flaps, and 4 implants were installed in each side, positioned 1.5 mm from the buccal bone. The sites were randomly assigned into: TG (test group) = thin gingiva; TG + GM (TG with grafting material); CG (control group) = normal gingiva; and CG + GM (CG with grafting material). Buccal bone thickness (BBT), thickness of keratinized tissue (TKT), alveolar thickness (AT), gingival recession (GR), and probing depth (PD) were clinically evaluated. Within 12 weeks the dogs were sacrificed and the samples were analyzed by micro-computerized tomography. A thin BBT was observed in all the dogs. The presurgical procedures reduced TKT in the test group, with minimal changes of the AT. There were no statistically significant differences among the groups for the clinical parameters and the tomographic analysis showed similar linear and tri-dimensional bone reduction in all the groups. The thickness of the buccal bone was a fundamental factor in buccal bone plate resorption, even with flapless implantation. The decrease in gingival thickness or the addition of a biomaterial in the gap did not influence the results. © 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  10. A Novel Treatment Decision Tree and Literature Review of Retrograde Peri-Implantitis.

    Science.gov (United States)

    Sarmast, Nima D; Wang, Howard H; Soldatos, Nikolaos K; Angelov, Nikola; Dorn, Samuel; Yukna, Raymond; Iacono, Vincent J

    2016-12-01

    Although retrograde peri-implantitis (RPI) is not a common sequela of dental implant surgery, its prevalence has been reported in the literature to be 0.26%. Incidence of RPI is reported to increase to 7.8% when teeth adjacent to the implant site have a previous history of root canal therapy, and it is correlated with distance between implant and adjacent tooth and/or with time from endodontic treatment of adjacent tooth to implant placement. Minimum 2 mm space between implant and adjacent tooth is needed to decrease incidence of apical RPI, with minimum 4 weeks between completion of endodontic treatment and actual implant placement. The purpose of this study is to compile all available treatment modalities and to provide a decision tree as a general guide for clinicians to aid in diagnosis and treatment of RPI. Literature search was performed for articles published in English on the topic of RPI. Articles selected were case reports with study populations ranging from 1 to 32 patients. Any case report or clinical trial that attempted to treat or rescue an implant diagnosed with RPI was included. Predominant diagnostic presentation of a lesion was presence of sinus tract at buccal or facial abscess of apical portion of implant, and subsequent periapical radiographs taken demonstrated a radiolucent lesion. On the basis of case reports analyzed, RPI was diagnosed between 1 week and 4 years after implant placement. Twelve of 20 studies reported that RPI lesions were diagnosed within 6 months after implant placement. A step-by-step decision tree is provided to allow clinicians to triage and properly manage cases of RPI on the basis of recommendations and successful treatments provided in analyzed case reports. It is divided between symptomatic and asymptomatic implants and adjacent teeth with vital and necrotic pulps. Most common etiology of apical RPI is endodontic infection from neighboring teeth, which was diagnosed within 6 months after implant placement. Most

  11. Micro CT and human histological analysis of a peri-implant osseous defect grafted with porous titanium granules: a case report.

    Science.gov (United States)

    Wohlfahrt, Johan Caspar; Aass, Anne Merete; Ronold, Hans Jacob; Lyngstadaas, Stale Petter

    2011-01-01

    Treatment of peri-implant osseous defects represents a significant challenge for clinicians, and the need to evolve within predictable surgical procedures is important. This case report describes the surgical treatment and grafting with porous titanium granules (PTG) of one patient with a peri-implant osseous defect. The suggested thrombogenic properties of titanium are intriguing from the perspective of osseous reconstructive surgery. In an ongoing randomized clinical trial using PTG for treatment of peri-implant osseous defects, one patient with one test implant was excluded and scheduled for implant removal. The surgical therapy included open flap debridement with surface decontamination with 24% EDTA gel, grafting with PTG, and resubmersion of the implant. After 12 months of healing, the implant with surrounding tissues was excised en bloc and micro CT and histological analyses were performed. Analyses showed PTG in close contact with new bone and with bone growing both into the porosities of the graft material and onto the adjacent implant surface. Element analysis demonstrated calcium and phosphorus in the new tissue embedding the PTG and the implant. Int J Oral Maxillofac Implants 2011;26:e9-e14.

  12. Bacterial Analysis of Peri-implantitis and Chronic Periodontitis in Iranian Subjects

    Directory of Open Access Journals (Sweden)

    Gunnar Dahlén

    2012-07-01

    Full Text Available Chronic periodontitis (CP and peri-implantitis (PI are multifactorial diseases of tooth and implant supporting apparatus. Bacterial invasion and consequent host immune response seem to play a role in relevant pathogenesis. The structural differences between tooth and implant pose preferential biofilm colonization. This study was aimed to compare the prevalence of bacteria in CP and PI. Clinical and radiographic examination performed over 69 individuals referred to Shahid Beheshti Dental School (Tehran, Iran and four groups categorized: CP (n=22, HP (n=21, PI (n=13 and HI (n=13. The mean age was 45.6 years, 55% of participants were female and 45% were male. Bacterial samples were collected by paper point method and transferred to Institute of Odontology, University of Gothenburg (Gothenburg, Sweden for checkerboard DNA-DNA hybridization. Kruskal-Wallis and Mann-Whitney U tests were used to compare distribution of bacteria in four groups. Significant differences were observed for T. forsythia, P. intermedia, C. rectus, P. endodontic, P. gingivalis, T. denticola and P. tannerae (P<0.05. The most prevalent bacteria in CP and PI were T. forsythia and P. gingivalis, respectively. In conclusion, bacterial prevalence differs significantly between tooth and implant. The most prevalent bacteria in Iranian subpopulation do not necessarily bear a resemblance to other populations. The type of implant surface may influence the biofilm. Other studies should be conducted to corroborate these findings.

  13. B-Cure Laser Dental Pro technology for prevention and treatment of peri-implant mucositis

    Science.gov (United States)

    Gileva, O. S.; Libik, T. V.; Chuprakov, M. A.; Yakov, A. Y.; Mirsaeva, F. Z.

    2017-09-01

    Oral mucositis (OM) is the severe inflammation, lesioning and ulceration of the epithelia, accompanied by bleeding and intensive pain. OM is a common complication of dental implantation. Low-level laser therapy (LLLT) has been found to enhance the repair and healing of epithelia. The aim of this study was to evaluate the effectiveness of preventive and treatment use of LLLT (B-Cure Laser Dental Pro technology in original author's techniques) in the patients who have undergone dental implantation. Simple blind randomized prospective one-center comparative placebo-controlled clinical trial is carried out on the group of 30 partially edentulous patients. It is proved that the use of LLLT before and after installation of dental implants provides: 1) reliable reduction (by 3.5 times) of the frequency of implication and intensity of pain in the first days after operation; 2) reduction (by 3.3-3.7 times) of frequency, duration and intensity of local edematous and inflammatory processes in peri-implant zone and facial soft tissue edema; 3) effective prophylaxis of postoperative sensory, paresthesia and neurologic disturbances in maxillofacial area.

  14. Contemporary guided bone regeneration therapy for unaesthetic anterior peri-implantitis case

    Directory of Open Access Journals (Sweden)

    Benso Sulijaya

    2016-12-01

    Full Text Available Background: Dental implant is one of an alternative solutions reconstruction therapy for missing teeth. Complication of dental implant could occurs and leading to implant failure. In order to restore the complication, surgical treatment with guided bone regeneration (GBR is indicated. The potential use of bone substitutes is widely known to be able to regenerate the bone surrounding the implant and maintain bone volume. Purpose: The study aimed to demonstrate the effectiveness of implant-bone fully coverage by using sandwich technique of biphasic calcium phosphate (BCP and demineralized freeze-dried bone allografts (DFDBA bone substitutes combined with collagen resorbable membrane. Case: A 24-year-old male came with diagnosis of peri-implantitis on implant #11. Clinical finding indicated that implant thread was exposed on the labial aspect. Case management: After initial therapy including oral hygiene improvement performed, an operator did a contemporary GBR to correct the defect. Bone graft materials used were 40% β-tri calcium phosphate (β-TCP-60% hydroxyapatite (HA on the outer layer and DFDBA on the inner layer of the defect. Resorbable collagen membrane was used to cover the graft. Conclusion: GBR with sandwich technique could serve as one of the treatment choices for correcting an exposed anterior implant that would enhance the successful aesthetic outcome.

  15. Cytokine and matrix metalloproteinase expression in fibroblasts from peri-implantitis lesions in response to viable Porphyromonas gingivalis

    NARCIS (Netherlands)

    Irshad, M.; Scheres, N.; Anssari Moin, D.; Crielaard, W.; Loos, B.G.; Wismeijer, D.; Laine, M.L.

    2013-01-01

    Background and Objective To assess inflammatory reactions of fibroblasts in the pathophysiology of peri-implantitis, we compared the pro-inflammatory and matrix-degrading responses of gingival and granulation tissue fibroblasts from periodontally healthy controls, peri-implantitis, and periodontitis

  16. Comparison of naturally occurring and ligature-induced peri-implantitis bone defects in humans and dogs.

    NARCIS (Netherlands)

    Schwarz, F.; Herten, M. van; Sager, M.; Bieling, K.; Sculean, A.; Becker, J.

    2007-01-01

    OBJECTIVES: The aim of the present study was to evaluate and compare naturally occuring and ligature-induced peri-implantitis bone defects in humans and dogs. MATERIAL AND METHODS: Twenty-four partially and fully edentulous patients undergoing peri-implant bone augmentation procedures due to

  17. Bone reactions at implants subjected to experimental peri-implantitis and static load. A study in the dog

    DEFF Research Database (Denmark)

    Gotfredsen, K; Berglundh, T; Lindhe, J

    2002-01-01

    during a 12-week interval, the screws were reactivated. Thus, the model included 3 different experimental sites of each surface group: group M+L (mucositis+load); group P (peri-implantitis); group P+L (peri-implantitis+load). Fluorochrome labels were injected and standardized radiographs obtained....... The animals were sacrificed and block biopsies of all implant sites dissected and prepared for histological analysis. RESULTS: It was demonstrated that the lateral static load failed to induce peri-implant bone loss at implants with mucositis and failed to enhance the bone loss at implants with experimental...... peri-implantitis. The proportion of bone labels and the bone density in the interface zone were significantly higher in group P+L than in group P. CONCLUSION: It is suggested that a lateral static load with controlled forces may not be detrimental to implants exhibiting mucositis or peri-implantitis....

  18. Antimicrobial effect of proteflazid extract on microflora of peri-implant areas in infectious and inflammatory complications after dental implantation

    Directory of Open Access Journals (Sweden)

    M. M. Ananieva

    2017-12-01

    Full Text Available The purpose of this study was to investigate the proteflazid extraction antimicrobial action onto causative agents of infectious and inflammatory diseases occurring during dental implant placement. Materials and Methods. We studied clinical strains of Streptococcus sanguinis, Staphylococcus warneri and Kocuria kristinae, isolated from oral mucosa of patients who were diagnosed with peri-implant mucositis and peri-implantitis. The cultivation of strains was carried out by standard method. Final identification was carried out with an automatic bacteriological analyzer Viteck 2 compact bioMérieux (France according to manufacturer's instructions. The sensitivity of derived strains to proteflazid and to 96 % ethyl alcohol assessment was done by double serial dilutions according to the standard procedure. Results. The clinical strains of Streptococcus sanguinis, Staphylococcus warneri and Kocuria kristinae were found to be sensitive to effects of proteflazid extract. K. kristinae was proven to be the least susceptible strain. But the clinical strain of Streptococcus sanguinis was found to be the most sensitive to proteflazid extract. 96 % ethyl alcohol, which is a component of the extract, showed a bactericidal effect on the clinical strains in the study, but its minimal bactericidal concentration was significantly lower than minimal bactericidal concentration of the proteflazid extract. Conclusions. The proteflazid extract can produce antimicrobial effect on the clinical strains of Streptococcus sanguinis, Staphylococcus warneri and Kocuria kristinae, which colonize the oral mucosa of patients with infectious and inflammatory complications following dental implant placement. Antimicrobial action of the proteflazid extract is much higher than action of 96% ethyl alcohol that confirms the direct antimicrobial action of flavonoids, which are components of the studied extract.

  19. Antimicrobial effect of chlorhexidine on Aggregatibacter actinomycetemcomitans biofilms associated with peri-implantitis

    Directory of Open Access Journals (Sweden)

    Zeinab Kadkhoda

    2016-08-01

    Full Text Available Background. This study aimed to assessthe antimicrobial effect of chlorhexidine (CHX on Aggregatibacter actinomyce-temcomitans biofilms isolated from subgingival plaque of peri-implantitis lesions. Methods. Thirteen patients requiring peri-implantitis treatment were consecutively selected and their subgingival biofilm was collected by inserting fine sterile paper points into peri-implant pockets for 15 seconds. A. actinomycetemcomitans was isolated from the subgingival biofilm and cultured. In this study, the standard strain of A. actinomycetemcomitans served as the positive control group and a blank disc impregnated with water served as the negative control; 0.1 mL of the bacterial suspension was cultured on specific culture medium and blank discs (6 mm in diameter impregnated with 0.2%CHX mouthrinse (Behsa Pharmaceutical Co. and negative control discs were placed on two sides of the bacterial culture plate. The size of growth inhibition zone was measured by a blinded independent observer in millimetres. Results. According to the results of disc diffusion test, the mean diameter of growth inhibition zone of A. actinomycetem-comitans around discs impregnated with CHX was larger in both standard (positive control and biofilm samples of A. acti-nomycetemcomitans compared to the negative control group (blank disc (P<0.001. Conclusion. Use of0.2% CHX mouthwash had antibacterial effects on A. actinomycetemcomitans species isolated from peri-implantitis sites.

  20. Hydroxyapatite particles maintain peri-implant bone mantle during osseointegration in osteoporotic bone

    NARCIS (Netherlands)

    Tami, A.E.; Leitner, M.M.; Baucke, M.G.; Mueller, T.L.; Lenthe, van G.H.; Müller, R.; Ito, K.

    2009-01-01

    In osteoporotic bones, resorption exceeds formation during the remodelling phase of bone turnover. As a consequence, decreased bone volume and bone contact result in the peri-implant region. This may subsequently lead to loss of fixation. In this study we investigated whether the presence of

  1. Systemic antibiotics and the risk of superinfection in peri-implantitis.

    Science.gov (United States)

    Verdugo, Fernando; Laksmana, Theresia; Uribarri, Agurne

    2016-04-01

    Peri-implantitis has emerged in the last few years as a complication difficult to resolve. The etiopathogenesis consensus is mainly attributed to bacteria. Following the preferred reporting items for systematic reviews and meta-analysis (PRISMA) guidelines, a PubMed/Medline literature search was performed using the US National Library of Medicine database up to 2015 to analyze available scientific data on the rationale and risk of superinfection associated to systemic antimicrobials in human peri-implant disease. A hand search was also conducted on relevant medical and microbiology journals. The methodological index for non-randomized studies (MINORS) was independently assessed for quality on the selected papers. Proposed combined therapies use broad-spectrum antibiotics to halt the disease progression. A major associated risk, particularly when prescribed empirically without microbiological follow-up, is the undetected development of superinfections and overgrowth of opportunistic pathogens difficult to eradicate. Peri-implant superinfections with opportunistic bacteria, yeast and viruses, are plausible risks associated to the use of systemic antibiotics in immunocompetent individuals. Lack of microbiological follow-up and antibiotic susceptibility testing may lead to ongoing microbial challenges that exacerbate the disease progression. The increased proliferation of antimicrobial resistance, modern implant surface topography and indiscriminative empiric antibiotic regimens may promote the escalation of peri-implant disease in years to come. A personalized 3-month supportive therapy may help prevent risks by sustaining a normal ecological balance, decreasing specific pathogen proportions and maintaining ideal plaque control. Copyright © 2015 Elsevier Ltd. All rights reserved.

  2. Abutment-to-fixture load transfer and peri-implant bone stress

    NARCIS (Netherlands)

    van Oers, R.F.; Feilzer, A.J.

    2015-01-01

    Purpose: To uncover design principles for the abutment-fixture complex that reduce the stress concentration on the bone. Methods: A 3-dimensional finite element model was used to vary shape, elasticity, and connectivity of the abutment-fixture complex. We compared peri-implant bone stress of these

  3. The quantitative assessment of peri-implant bone responses using histomorphometry and micro-computed tomography.

    NARCIS (Netherlands)

    Schouten, C.; Meijer, G.J.; Beucken, J.J.J.P van den; Spauwen, P.H.M.; Jansen, J.A.

    2009-01-01

    In the present study, the effects of implant design and surface properties on peri-implant bone response were evaluated with both conventional histomorphometry and micro-computed tomography (micro-CT), using two geometrically different dental implants (Screw type, St; Push-in, Pi) either or not

  4. Osteogenesis and Morphology of the Peri-Implant Bone Facing Dental Implants

    Directory of Open Access Journals (Sweden)

    Marco Franchi

    2004-01-01

    Full Text Available This study investigated the influence of different implant surfaces on peri-implant osteogenesis and implant face morphology of peri-implant tissues during the early (2 weeks and complete healing period (3 months. Thirty endosseous titanium implants (conic screws with differently treated surfaces (smooth titanium = SS, titanium plasma sprayed = TPS, sand-blasted zirconium oxide = Zr-SLA were implanted in femur and tibiae diaphyses of two mongrel sheep. Histological sections of the implants and surrounding tissues obtained by sawing and grinding techniques were observed under light microscopy (LM. The peri-implant tissues of other samples were mechanically detached from the corresponding implants to be processed for SEM observation. Two weeks after implantation, we observed osteogenesis (new bone trabeculae around all implant surfaces only where a gap was present at the host bone-metal interface. No evident bone deposition was detectable where threads of the screws were in direct contact with the compact host bone. Distance osteogenesis predominated in SS implants, while around rough surfaces (TPS and Zr-SLA, both distance and contact osteogenesis were present. At SEM analysis 2 weeks after implantation, the implant face of SS peri-implant tissue showed few, thin, newly formed, bone trabeculae immersed in large, loose, marrow tissue with blood vessels. Around the TPS screws, the implant face of the peri-implant tissue was rather irregular because of the rougher metal surface. Zr-SLA screws showed more numerous, newly formed bone trabeculae crossing marrow spaces and also needle-like crystals in bone nodules indicating an active mineralising process. After 3 months, all the screws appeared osseointegrated, being almost completely covered by a compact, mature, newly formed bone. However, some marrow spaces rich in blood vessels and undifferentiated cells were in contact with the metal surface. By SEM analysis, the implant face of the peri-implant

  5. Peri-implant and Paracrestal Inflammatory Biomarkers at Failing Versus Surviving Implant Sites in a Beagle Dog Study.

    Science.gov (United States)

    Montero, Javier; Aragón, Fernando; Blanco, Leticia A; Guadilla, Yasmina; García-Cenador, Begona; López-Valverde, Antonio

    This study sought to quantify three biochemical mediators of inflammation (tumor necrosis factor alpha [TNF-α], superoxide anion [SOA], and myeloperoxidase [MPO]) by analyzing crestal (peri-implants) and paracrestal gingival biopsy samples obtained from an experimental study on beagle dogs treated with implants inserted immediately into fresh sockets with circumferential defects. In 10 beagle dogs, 4 roughened titanium implants (3.8 mm wide × 8 mm high) were placed in the distal sockets of the third and fourth premolars, where a circumferential defect (5 mm wide and 5 mm deep) had been previously created by trephination. After varying follow-up periods, ranging from 80 to 190 days, the dogs were explored clinically to assess implant survival, peri-implant pocket depth, and implant stability. The levels of three biochemical mediators of inflammation (MPO, TNF-α, and SOA) were investigated using the crestal and paracrestal gingival biopsy samples with ELISA tests. It was found that 37.5% of the implants were either absent or mobile. Higher levels of the inflammatory mediators were found in the crestal samples than in the paracrestal samples. The final implant stability values were significantly correlated with the final probing depth (r = -0.83, P < .01), but neither of the clinical measures were significantly correlated with any biochemical marker. The risk of implant failure was significantly proportional to the level of MPO (odds ratio: 1.1) and TNF-α (odds ratio: 1.1) in both the crestal and paracrestal regions. All the inflammatory mediators studied were higher in the crestal areas than in the paracrestal regions, but only the values of MPO and TNF-α were significant predictors of implant failure.

  6. Location of unaccessible implant surface areas during debridement in simulated peri-implantitis therapy.

    Science.gov (United States)

    Steiger-Ronay, Valerie; Merlini, Andrea; Wiedemeier, Daniel B; Schmidlin, Patrick R; Attin, Thomas; Sahrmann, Philipp

    2017-11-28

    An in vitro model for peri-implantitis treatment was used to identify areas that are clinically difficult to clean by analyzing the pattern of residual stain after debridement with commonly employed instruments. Original data from two previous publications, which simulated surgical (SA) and non-surgical (NSA) implant debridement on two different implant systems respectively, were reanalyzed regarding the localization pattern of residual stains after instrumentation. Two blinded examiners evaluated standardized photographs of 360 initially ink-stained dental implants, which were cleaned at variable defect angulations (30, 60, or 90°), using different instrument types (Gracey curette, ultrasonic scaler or air powder abrasive device) and treatment approaches (SA or NSA). Predefined implant surface areas were graded for residual stain using scores ranging from one (stain-covered) to six (clean). Score differences between respective implant areas were tested for significance by pairwise comparisons using Wilcoxon-rank-sum-tests with a significance level α = 5%. Best scores were found at the machined surface areas (SA: 5.58 ± 0.43, NSA: 4.76 ± 1.09), followed by the tips of the threads (SA: 4.29 ± 0.44, NSA: 4.43 ± 0.61), and areas between threads (SA: 3.79 ± 0.89, NSA: 2.42 ± 1.11). Apically facing threads were most difficult to clean (SA: 1.70 ± 0.92, NSA: 2.42 ± 1.11). Here, air powder abrasives provided the best results. Machined surfaces at the implant shoulder were well accessible and showed least amounts of residual stain. Apically facing thread surfaces constituted the area with most residual stain regardless of treatment approach.

  7. Spontaneous progression of ligature induced peri-implantitis at implants with different surface roughness: an experimental study in dogs

    DEFF Research Database (Denmark)

    Berglundh, T; Gotfredsen, K; Zitzmann, N U

    2007-01-01

    : The aim of the current experiment was to study the progression of peri-implantitis around implants with different surface roughness. MATERIAL AND METHODS: In five beagle dogs, three implants with either a sandblasted acid-etched surface (SLA) or a polished surface (P) were installed bilaterally......BACKGROUND: Peri-implantitis is associated with the presence of submarginal plaque, soft-tissue inflammation and advanced breakdown of the supporting bone. The progression of peri-implantitis following varying periods of continuing plaque accumulation has been studied in animal models. OBJECTIVE...... in the edentulous premolar regions. After 3 months on a plaque control regimen, experimental peri-implantitis was induced by ligature placement and plaque accumulation was allowed to progress until about 40% of the height of the supporting bone had been lost. After this 4-month period, ligatures were removed...

  8. Comparison of Subgingival and Peri-implant Microbiome in Chronic Periodontitis.

    Science.gov (United States)

    Zhang, Qian; Qin, Xue Yan; Jiang, Wei Peng; Zheng, Hui; Xu, Xin Li; Chen, Feng

    2015-09-01

    To analyse the microbia composition of 10 healthy dental implants and 10 chronic periodontitis patients. Subgingival plaque and peri-implant biofilm were sampled at the first molar site before and after implant restoration. The analysis was conducted by 454-prosequencing of bacterial V1 to V3 regions of 16S rDNA. Chronic periodontitis subjects showed greater bacterial diversity compared with implant subjects. The relative abundance of sixteen genera and twelve species differed significantly between implant and chronic periodontitis subjects. The genera Catonella, Desulfovibrio, Mogibacterium, Peptostreptococcus and Propionibacterium were present in higher abundance in chronic periodontitis subjects, while implant subjects had higher proportions of Brevundimonas and Pseudomonas species. Our results demonstrate that implant restoration changes the oral microbiota. The analysis suggests that periodontal bacteria can remain for a prolonged period of time at non-dental sites, from where they can colonise the peri-implant.

  9. Comparative Effectiveness Research of Adjunctive Methods in Controlling Peri-Implant Mucositis Intervention A Systematic Review Analysis

    OpenAIRE

    Javadi, Shadi

    2017-01-01

    Introduction and Objective: Peri-implant mucositis is a very common condition affecting the gingival tissue around dental implants. It is an inflammation of the tissues, characterized by bleeding on probing around the implant. This condition is the initial step of a more severe condition called peri-implantitis, which is very difficult to treat. With increased number of implant placements in patients, the length of time each dental implant is supposed to serve, and the price of replacing the ...

  10. Characterization of Cement Particles Found in Peri-implantitis-Affected Human Biopsy Specimens.

    Science.gov (United States)

    Burbano, Maria; Wilson, Thomas G; Valderrama, Pilar; Blansett, Jonathan; Wadhwani, Chandur P K; Choudhary, Pankaj K; Rodriguez, Lucas C; Rodrigues, Danieli C

    2015-01-01

    Peri-implantitis is a disease characterized by soft tissue inflammation and continued loss of supporting bone, which can result in implant failure. Peri-implantitis is a multifactorial disease, and one of its triggering factors may be the presence of excess cement in the soft tissues surrounding an implant. This descriptive study evaluated the composition of foreign particles from 36 human biopsy specimens with 19 specimens selected for analysis. The biopsy specimens were obtained from soft tissues affected by peri-implantitis around cement-retained implant crowns and compared with the elemental composition of commercial luting cement. Nineteen biopsy specimens were chosen for the comparison, and five test cements (TempBond, Telio, Premier Implant Cement, Intermediate Restorative Material, and Relyx) were analyzed using scanning electron microscopy equipped with energy dispersive x-ray spectroscopy. This enabled the identification of the chemical composition of foreign particles embedded in the tissue specimens and the composition of the five cements. Statistical analysis was conducted using classification trees to pair the particles present in each specimen with the known cements. The particles in each biopsy specimen could be associated with one of the commercial cements with a level of probability ranging between .79 and 1. TempBond particles were found in one biopsy specimen, Telio particles in seven, Premier Implant Cement particles in four, Relyx particles in four, and Intermediate Restorative Material particles in three. Particles found in human soft tissue biopsy specimens around implants affected by peri-implant disease were associated with five commercially available dental cements.

  11. Regenerative surgical therapy for peri-implantitis using deproteinized bovine bone mineral with 10% collagen, enamel matrix derivative and Doxycycline-A prospective 3-year cohort study.

    Science.gov (United States)

    Mercado, Faustino; Hamlet, Stephen; Ivanovski, Saso

    2018-05-16

    There is limited evidence regarding the long-term efficacy of regenerative treatment for peri-implantitis. The aim of this study was to evaluate a combination therapy of deproteinized bovine bone mineral with 10% collagen (DBBMC), enamel matrix derivative (EMD) and Doxycycline in the regeneration of bone defects associated with peri-implantitis. Thirty patients diagnosed with peri-implantitis (BoP/suppuration, probing depth greater than 4 mm, minimum radiographic bone loss of 20%, at least 2 years in function) were enrolled in the study. Clinical measurements included probing depths, recession, radiographic bone fill, gingival inflammation and bleeding on probing/suppuration. Following surgical access and debridement, the implant surfaces were decontaminated with 24% EDTA for 2 min, and the bone defects were filled with a combined mixture of DBBMC, EMD and Doxycycline powder. The defects were covered with connective tissue grafts where necessary. Clinical measurements were recorded after 12, 24 and 36 months. The mean probing depth and bone loss at the initial visit was 8.9 mm (±1.9) and 6.92 mm (±1.26), respectively. Both mean probing depth and bone loss reduced significantly from baseline to 3.55 mm (±0.50) and 2.85 mm (±0.73) at 12 months, 3.50 (±0.50) and 2.62 mm (±0.80) at 24 months and 3.50 mm (±0.50) and 2.60 mm (±0.73) at 36 months. 56.6% of the implants were considered successfully treated (according to Successful Treatment Outcome Criterion: PD 10%, no BoP/suppuration, no recession >0.5 mm for anterior implants and >1.5 mm for posterior implants) after 36 months. Regenerative treatment of peri-implantitis using a combined mixture of DBBMC, EMD and Doxycycline achieved promising results. The benefits of this protocol incorporating EMD should be tested in randomized clinical trials. © 2018 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  12. Pyrosequencing of supra- and subgingival biofilms from inflamed peri-implant and periodontal sites.

    Science.gov (United States)

    Schaumann, Simone; Staufenbiel, Ingmar; Scherer, Ralph; Schilhabel, Markus; Winkel, Andreas; Stumpp, Sascha Nico; Eberhard, Jörg; Stiesch, Meike

    2014-12-17

    To investigate the microbial composition of biofilms at inflamed peri-implant and periodontal tissues in the same subject, using 16S rRNA sequencing. Supra- and submucosal, and supra- and subgingival plaque samples were collected from 7 subjects suffering from diseased peri-implant and periodontal tissues. Bacterial DNA was isolated and 16S rRNA genes were amplified, sequenced and aligned for the identification of bacterial genera. 43734 chimera-depleted, denoised sequences were identified, corresponding to 1 phylum, 8 classes, 10 orders, 44 families and 150 genera. The most abundant families or genera found in supramucosal or supragingival plaque were Streptoccocaceae, Rothia and Porphyromonas. In submucosal plaque, the most abundant family or genera found were Rothia, Streptococcaceae and Porphyromonas on implants. The most abundant subgingival bacteria on teeth were Prevotella, Streptococcaceae, and TG5. The number of sequences found for the genera Tannerella and Aggregatibacter on implants differed significantly between supra- and submucosal locations before multiple testing. The analyses demonstrated no significant differences between microbiomes on implants and teeth in supra- or submucosal and supra- or subgingival biofilms. Diseased peri-implant and periodontal tissues in the same subject share similiar bacterial genera and based on the analysis of taxa on a genus level biofilm compositions may not account for the potentially distinct pathologies at implants or teeth.

  13. Different contribution of BRINP3 gene in chronic periodontitis and peri-implantitis: a cross-sectional study.

    Science.gov (United States)

    Casado, Priscila L; Aguiar, Diego P; Costa, Lucas C; Fonseca, Marcos A; Vieira, Thays C S; Alvim-Pereira, Claudia C K; Alvim-Pereira, Fabiano; Deeley, Kathleen; Granjeiro, José M; Trevilatto, Paula C; Vieira, Alexandre R

    2015-03-11

    Peri-implantitis is a chronic inflammation, resulting in loss of supporting bone around implants. Chronic periodontitis is a risk indicator for implant failure. Both diseases have a common etiology regarding inflammatory destructive response. BRINP3 gene is associated with aggressive periodontitis. However, is still unclear if chronic periodontitis and peri-implantitis have the same genetic background. The aim of this work was to investigate the association between BRINP3 genetic variation (rs1342913 and rs1935881) and expression and susceptibility to both diseases. Periodontal and peri-implant examinations were performed in 215 subjects, divided into: healthy (without chronic periodontitis and peri-implantitis, n = 93); diseased (with chronic periodontitis and peri-implantitis, n = 52); chronic periodontitis only (n = 36), and peri-implantitis only (n = 34). A replication sample of 92 subjects who lost implants and 185 subjects successfully treated with implants were tested. DNA was extracted from buccal cells. Two genetic markers of BRINP3 (rs1342913 and rs1935881) were genotyped using TaqMan chemistry. Chi-square (p chronic periodontitis.

  14. Digital volume tomography in the diagnosis of peri-implant defects: an in vitro study on native pig mandibles.

    Science.gov (United States)

    Mengel, Reiner; Kruse, Björn; Flores-de-Jacoby, Lavin

    2006-07-01

    The aim of this study of native pig mandibles was to investigate the accuracy and quality of the representation of peri-implant defects by intraoral radiography (IR), panoramic radiography (PR), computer tomography (CT), and digital volume tomography (DVT). The examination was carried out on 19 native pig mandibles. In the toothless sections of the mandibles, one or two implants were inserted. Following the standardized preparation of peri-implant defects (11 each of dehiscences, fenestrations, and 2- to 3-walled intrabony defects), IR, PR, CT, and DVT were performed. The peri-implant defects were measured using appropriate software on the digitized IR and PR image programs. As a control method, the peri-implant bone defects were measured directly using a reflecting stereomicroscope with measuring ocular. The statistical comparison between the measurements of the radiographic scans and those of the direct readings of the peri-implant defects was performed with Pearson's correlation coefficient. The quality of the radiographic scans was determined through the subjective perception and detectability of the peri-implant defects by five independent observers. In the DVT and CT scans, it was possible to measure all the bone defects in three planes. Comparison with the direct peri-implant defect measurements yielded a mean deviation of 0.17+/-0.11 mm for the DVT scans and 0.18+/-0.12 mm for the CT scans. On the IR and PR images, the defects could be detected only in the mesio-distal and cranio-caudal planes. In comparison with the direct measurements of the peri-implant defects, the IR images revealed a mean deviation of 0.34+/-0.30 mm, and the PR images revealed a mean deviation of 0.41+/-0.35 mm. The quality rating of the radiographic images was highest for the DVT scans. Overall, the CT and DVT scans displayed only a slight deviation in the extent of the peri-implant defects. Both radiographic imaging techniques permitted imaging of peri-implant defects in three

  15. Non-surgical treatment of peri-implantitis with the adjunctive use of an 810-nm diode laser

    Directory of Open Access Journals (Sweden)

    Marisa Roncati

    2013-01-01

    Full Text Available An 810-nm diode laser was used to non-surgically treat a 7-mm pocket around an implant that had five threads of bone loss, BoP+, and exudate, and the patient was followed up for 5 years. Non-surgical treatment, home care reinforcement, clinical indices records, and radiographic examination were completed in two consecutive 1-h appointments within 24 h. The patient was monitored frequently for the first 3 months. Subsequently, maintenance debridement visits were scheduled at 3-month intervals. The patient had a decreased probing pocket depth and a negative BoP index compared to initial clinical data, and the results were stable after 1 year. After 5 years of follow-up visits, there appeared to be rebound of the bone level radiographically. Within the limits of this case report, conventional non-surgical periodontal therapy with the adjunctive use of an 810-nm diode laser may be a feasible alternative approach for the management of peri-implantitis. The 5-year clinical and radiographic outcomes indicated maintenance of the clinical improvement.

  16. Efficacy of triclosan-based toothpastes in the prevention and treatment of plaque-induced periodontal and peri-implant diseases.

    Science.gov (United States)

    Trombelli, L; Farina, R

    2013-03-01

    To evaluate the efficacy of triclosan (T)-based toothpaste formulations in the prevention and treatment of plaque-induced periodontal and peri-implant diseases. A review of the existing literature was conducted with a systematic approach in order to retrieve pertinent articles. i) Compared with a control fluoride dentifrice, a fluoride dentifrice containing T formulations provides a more effective level of plaque control and gingival health in patients affected by gingivitis; ii) 0.3% T/2% copolymer/0.243% NaF formulation and 0.3% T/0.13% Ca glicerophosphate/1000 ppm F toothpaste in a natural Ca carbonate base seem the most effective T-based toothpaste formulations in controlling plaque and gingival inflammation in patients with gingivitis or mild/moderate periodontitis over a 6-month period; iii) 0.3% T/2% copolymer/0.243% NaF toothpaste formulation can reduce clinical attachment loss in young adolescents when compared with a 0.243% NaF toothpaste formulation, the magnitude of the difference being greater for patients with deep periodontal pockets at baseline; iv) 0.3% T/2% copolymer/0.243% NaF toothpaste formulation is either similarly or more efficacious in preventing the progression/recurrence of periodontal destruction when compared to a conventional fluoride toothpaste; v) 0.3% T/2% copolymer/0.243% NaF toothpaste formulation seems to be more effective than a fluoride toothpaste formulation in controlling the severity of mucosal inflammation, the incidence of mucosal bleeding as well as reducing probing pocket depth around dental implants.

  17. The effect of peri-implantation administration of uterine relaxing agents in assisted reproduction treatment cycles: a systematic review and meta-analysis.

    Science.gov (United States)

    Khairy, Mohammed; Dhillon, Rima K; Chu, Justin; Rajkhowa, Madhurima; Coomarasamy, Arri

    2016-04-01

    Sub-endometrial junctional zone peristalsis is increased by ovarian stimulation and traumatic embryo transfer, and is linked with decreased implantation and pregnancy rates in assisted reproduction treatments. Various agents have been used to inhibit uterine hyper-peristalsis at the time of embryo transfer with conflicting results. This systematic review aimed to identify if uterine relaxants administered in the peri-implantation period during assisted reproduction treatments could improve pregnancy outcomes through literature search with no language restrictions. The review reports on 3546 patients in 17 randomized controlled trials published between 1993 and 2014. Women undergoing assisted reproduction techniques who either received a uterine relaxant agent in the peri-implantation period versus placebo or no treatment were included. Primary outcome was live birth rate. The meta-analyses did not show statistically significant benefit of any uterine relaxing agents on live birth rate. Other meta-analyses did not show a significant effect on the clinical pregnancy, spontaneous abortion, ectopic pregnancy and multiple pregnancy rate. Most of the included studies were of low quality and lacked significant power to detect minimally important effect. Evidence is insufficient to recommend using these agents in routine practice. Further methodologically robust randomized controlled trials with more refined selection criteria might reveal a beneficial effect. Copyright © 2016 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.

  18. Comparative study of the effects of photodynamic therapy and conventional therapy on ligature induced peri-implantitis in dogs

    International Nuclear Information System (INIS)

    Hayek, Ricardo Rada Ahmad

    2004-01-01

    Progressive peri-implanter bone losses, which are accompanied by inflammatory process in the soft tissues is referred to as peri-implantitis. The aim of this study was to compare the effects of lethal photosensitisation with the conventional technique on bacterial reduction in ligature induced peri-implantitis in dogs. Seventeen third pre-molars of Labrador dogs were extracted and, immediately after, the implants were submerged. After osteointegration, peri-implantitis was induced. After 4 months, ligature were removed and the same period was waited for natural induction of bacterial plaque. The dogs were randomly divided into two groups. In the conventional group, they were treated with the conventional techniques of mucoperiosteal flaps for scaling the implant surface and irrigate it. In the laser group, only mucoperiosteal scaling was carried out before photodynamic therapy. On the peri-implanter pocket an azulene paste was injected and a GaAlAs low-power laser (λ= 660 nm, P= 30 mW, E= 5,4 J and Δt= 3 min.). Microbiological samples were obtained before and immediately after treatment. One implant was removed to be analyzed by scan electron microscopy to verify contamination on the implant surface. The results of this study showed that Prevotella sp., Fusobacterium e S. Beta-haemolyticus were significantly reduced for the conventional and laser groups. (author)

  19. “Stop the ticking before it blows:” treatment modalities of peri-implantitis

    Directory of Open Access Journals (Sweden)

    Rachna Jain

    2016-01-01

    Full Text Available The serendipitous discovery of osseointegration and the subsequent development of dental implants have irrefutably marked an epoch-making point of inflection in not only the basic approach of the clinicians toward treating edentulism but also in the attitudes and preferences of the patients in getting their oral rehabilitation issues resolved. This decisive shift also triggered explosive research targeting improvement in various aspects of dental implants. However, initial success in osseointegration does not necessarily translate into success in long-term function. A successfully osseointegrated implant may be afflicted with early or late complications in due course of service. Of these, peri-implantitis (PI is considered one of the most common causes of implant failure. For the treatment of peri-implant diseases (mucositis and PI, various conservative and surgical approaches are available. Mucositis and moderate forms of PI can be contained effectively using conservative methods. These include the administration of systemic and local antibiotics alone or in conjunction with other treatment modalities such as nonsurgical therapy which consists of mechanical debridement of the affected areas, irrigation with antiseptics (such as chlorhexidine, saline, and 10% hydrogen peroxide with or without surface decontamination, laser-supported therapy, photodynamic therapy as well as light-activated disinfection also known as photodynamic antimicrobial chemotherapy along with maintaining adequate plaque control. In cases with advanced PI, surgical therapies are more effective than conservative approaches. Open flap debridement can be done, and depending on the configuration of the defect, regenerative therapies such as guided tissue regenerative and the use of bone graft materials may be applicable for defect filling whereas resective surgery can be considered for the elimination of peri-implant lesions.

  20. Early implant-associated osteomyelitis results in a peri-implanted bacterial reservoir

    DEFF Research Database (Denmark)

    Jensen, Louise Kruse; Koch, Janne; Aalbæk, Bent

    2017-01-01

    weight of Staphylococcus aureus or saline was inserted into the right tibial bone of 12 pigs. The animals were consecutively killed on day 2, 4 and 6 following implantation. Bone tissue around the implant was histologically evaluated. Identification of S. aureus was performed immunohistochemically...... on tissue section and with scanning electron microscopy and peptide nucleic acid in situ hybridization on implants. The distance of the peri-implanted pathological bone area (PIBA), measured perpendicular to the implant, was significantly larger in infected animals compared to controls (p = 0...

  1. 10-year survival rate and the incidence of peri-implant disease of 374 titanium dental implants with a SLA surface: a prospective cohort study in 177 fully and partially edentulous patients.

    Science.gov (United States)

    van Velzen, Frank J J; Ofec, Ronen; Schulten, Engelbert A J M; Ten Bruggenkate, Christiaan M

    2015-10-01

    This prospective cohort study evaluates the 10-year survival and incidence of peri-implant disease at implant and patient level of sandblasted, large grid, and acid-etched titanium dental implants (Straumann, soft tissue level, SLA surface) in fully and partially edentulous patients. Patients who had dental implant surgery in the period between November 1997 and June 2001, with a follow-up of at least 10 years, were investigated for clinical and radiological examination. Among the 506 inserted dental implants in 250 patients, 10-year data regarding the outcome of implants were available for 374 dental implants in 177 patients. In the current study, peri-implantitis was defined as advanced bone loss (≧1.5 mm. postloading) in combination with bleeding on probing. At 10-year follow-up, only one implant was lost (0.3%) 2 months after implant surgery due to insufficient osseointegration. The average bone loss at 10 year postloading was 0.52 mm. Advanced bone loss at 10-year follow-up was present in 35 dental implants (9.8%). Seven percent of the observed dental implants showed bleeding on probing in combination with advanced bone loss and 4.2% when setting the threshold for advanced bone loss at 2.0 mm. Advanced bone loss without bleeding on probing was present in 2.8% of all implants. In this prospective study, the 10-year survival rate at implant and patient level was 99.7% and 99.4%, respectively. Peri-implantitis was present in 7% of the observed dental implants according to the above-mentioned definition of peri-implantitis. This study shows that SLA implants offer predictable long-term results as support in the treatment of fully and partially edentulous patients. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  2. Investigation of pathogenic genes in peri-implantitis from implant clustering failure patients: a whole-exome sequencing pilot study.

    Directory of Open Access Journals (Sweden)

    Soohyung Lee

    Full Text Available Peri-implantitis is a frequently occurring gum disease linked to multi-factorial traits with various environmental and genetic causalities and no known concrete pathogenesis. The varying severity of peri-implantitis among patients with relatively similar environments suggests a genetic aspect which needs to be investigated to understand and regulate the pathogenesis of the disease. Six unrelated individuals with multiple clusterization implant failure due to severe peri-implantitis were chosen for this study. These six individuals had relatively healthy lifestyles, with minimal environmental causalities affecting peri-implantitis. Research was undertaken to investigate pathogenic genes in peri-implantitis albeit with a small number of subjects and incomplete elimination of environmental causalities. Whole-exome sequencing was performed on collected saliva samples via self DNA collection kit. Common variants with minor allele frequencies (MAF > = 0.05 from all control datasets were eliminated and variants having high and moderate impact and loss of function were used for comparison. Gene set enrichment analysis was performed to reveal functional groups associated with the genetic variants. 2,022 genes were left after filtering against dbSNP, the 1000 Genomes East Asian population, and healthy Korean randomized subsample data (GSK project. 175 (p-value <0.05 out of 927 gene sets were obtained via GSEA (DAVID. The top 10 was chosen (p-value <0.05 from cluster enrichment showing significance of cytoskeleton, cell adhesion, and metal ion binding. Network analysis was applied to find relationships between functional clusters. Among the functional groups, ion metal binding was located in the center of all clusters, indicating dysfunction of regulation in metal ion concentration might affect cell morphology or cell adhesion, resulting in implant failure. This result may demonstrate the feasibility of and provide pilot data for a larger research

  3. Evaluation of peri-implant crevicular fluid prostaglandin E2 levels in augmented extraction sockets by different biomaterials.

    Science.gov (United States)

    Alkan, Eylem Ayhan; Tüter, Gülay; Parlar, Ateş; Yücel, Ayşegül; Kurtiş, Bülent

    2016-10-01

    This study compares peri-implant crevicular fluid (PICF) prostaglandin E 2 (PGE 2 ) levels, clinical parameters and implant stability quotient (ISQ) values around implants placed in augmented extraction sockets. The sockets (24 in total) were randomly augmented using either EMD or Bio-Oss Collagen. Implant placements were performed after three months of healing. ISQ readings were evaluated at three points: at the time of surgery, at the first month and at the third month. PICF was collected for PGE 2 evaluation after the first and the third months of implant surgery. After the first month, a higher level of PICF PGE 2 was observed in the EMD group than in the Bio-Oss Collagen group, and this increase was of statistical significance; however, at the third month there was no statistically significant difference in PICF PGE 2 levels between the two groups. For implants placed in EMD sites, ISQ values were statistically higher at the third month than at the first month, while no significant differences in ISQ value were detected between the first and third months in Bio-Oss Collagen sites. The results of this research suggest that both EMD and Bio-Oss Collagen are effective treatment modalities for stimulating the formation of new bone at extraction sites prior to implant surgery.

  4. Therapeutic interaction of systemically-administered mesenchymal stem cells with peri-implant mucosa.

    Directory of Open Access Journals (Sweden)

    Ryosuke Kondo

    Full Text Available OBJECTIVES: The objective of this study was to investigate the effect of systemically transplanted mesenchymal stem cells (MSCs on the peri-implant epithelial sealing around dental implants. MATERIALS AND METHODS: MSCs were isolated from bone marrow of donor rats and expanded in culture. After recipient rats received experimental titanium dental implants in the bone sockets after extraction of maxillary right first molars, donor rat MSCs were intravenously transplanted into the recipient rats. RESULTS: The injected MSCs were found in the oral mucosa surrounding the dental implants at 24 hours post-transplantation. MSC transplantation accelerated the formation of the peri-implant epithelium (PIE-mediated mucosa sealing around the implants at an early stage after implantation. Subsequently, enhanced deposition of laminin-332 was found along the PIE-implant interface at 4 weeks after the replacement. We also observed enhanced attachment and proliferation of oral mucous epithelial cells. CONCLUSION: Systemically transplanted MSCs might play a critical role in reinforcing the epithelial sealing around dental implants.

  5. The Antimicrobial Photodynamic Therapy in the Treatment of Peri-Implantitis

    Directory of Open Access Journals (Sweden)

    Umberto Romeo

    2016-01-01

    Full Text Available Introduction. The aim of this study is to demonstrate the effectiveness of addition of the antimicrobial photodynamic therapy to the conventional approach in the treatment of peri-implantitis. Materials and Methods. Forty patients were randomly assigned to test or control groups. Patients were assessed at baseline and at six (T1, twelve (T2, and twenty-four (T3 weeks recording plaque index (PlI, probing pocket depth (PPD, and bleeding on probing (BOP; control group received conventional periodontal therapy, while test group received photodynamic therapy in addition to it. Result. Test group showed a 70% reduction in the plaque index values and a 60% reduction in PD values compared to the baseline. BOP and suppuration were not detectable. Control group showed a significative reduction in plaque index and PD. Discussion. Laser therapy has some advantages in comparison to traditional therapy, with faster and greater healing of the wound. Conclusion. Test group showed after 24 weeks a better value in terms of PPD, BOP, and PlI, with an average pocket depth value of 2 mm, if compared with control group (3 mm. Our results suggest that antimicrobial photodynamic therapy with diode laser and phenothiazine chloride represents a reliable adjunctive treatment to conventional therapy. Photodynamic therapy should, however, be considered a coadjuvant in the treatment of peri-implantitis associated with mechanical (scaling and surgical (grafts treatments.

  6. The quantitative assessment of peri-implant bone responses using histomorphometry and micro-computed tomography.

    Science.gov (United States)

    Schouten, Corinne; Meijer, Gert J; van den Beucken, Jeroen J J P; Spauwen, Paul H M; Jansen, John A

    2009-09-01

    In the present study, the effects of implant design and surface properties on peri-implant bone response were evaluated with both conventional histomorphometry and micro-computed tomography (micro-CT), using two geometrically different dental implants (Screw type, St; Push-in, Pi) either or not surface-modified (non-coated, CaP-coated, or CaP-coated+TGF-beta1). After 12 weeks of implantation in a goat femoral condyle model, peri-implant bone response was evaluated in three different zones (inner: 0-500 microm; middle: 500-1000 microm; and outer: 1000-1500 microm) around the implant. Results indicated superiority of conventional histomorphometry over micro-CT, as the latter is hampered by deficits in the discrimination at the implant/tissue interface. Beyond this interface, both analysis techniques can be regarded as complementary. Histomorphometrical analysis showed an overall higher bone volume around St compared to Pi implants, but no effects of surface modification were observed. St implants showed lowest bone volumes in the outer zone, whereas inner zones were lowest for Pi implants. These results implicate that for Pi implants bone formation started from two different directions (contact- and distance osteogenesis). For St implants it was concluded that undersized implantation technique and loosening of bone fragments compress the zones for contact and distant osteogenesis, thereby improving bone volume at the interface significantly.

  7. Comparative analysis between endometrial proteomes of pregnant and non-pregnant ewes during the peri-implantation period.

    Science.gov (United States)

    Zhao, Haichao; Sui, Linlin; Miao, Kai; An, Lei; Wang, Dong; Hou, Zhuocheng; Wang, Rui; Guo, Min; Wang, Zhilong; Xu, Jiqiang; Wu, Zhonghong; Tian, Jianhui

    2015-01-01

    Early pregnancy failure has a profound impact on both human reproductive health and animal production. 2/3 pregnancy failures occur during the peri-implantation period; however, the underlying mechanism(s) remains unclear. Well-organized modification of the endometrium to a receptive state is critical to establish pregnancy. Aberrant endometrial modification during implantation is thought to be largely responsible for early pregnancy loss. In this study, using well-managed recipient ewes that received embryo transfer as model, we compared the endometrial proteome between pregnant and non-pregnant ewes during implantation period. After embryo transfer, recipients were assigned as pregnant or non-pregnant ewes according to the presence or absence of an elongated conceptus at Day 17 of pregnancy. By comparing the endometrial proteomic profiles between pregnant and non-pregnant ewes, we identified 94 and 257 differentially expressed proteins (DEPs) in the endometrial caruncular and intercaruncular areas, respectively. Functional analysis showed that the DEPs were mainly associated with immune response, nutrient transport and utilization, as well as proteasome-mediated proteolysis. These analysis imply that dysfunction of these biological processes or pathways of DEP in the endometrium is highly associated with early pregnancy loss. In addition, many proteins that are essential for the establishment of pregnancy showed dysregulation in the endometrium of non-pregnant ewes. These proteins, as potential candidates, may contribute to early pregnancy loss.

  8. Autogenous bone graft and ePTFE membrane in the treatment of peri-implantitis. II. Stereologic and histologic observations in cynomolgus monkeys

    DEFF Research Database (Denmark)

    Schou, Søren; Holmstrup, Palle; Skovgaard, Lene Theil

    2003-01-01

    autogenous bone graft; guided bone regeneration; histology; membrane; non-human primates; oral implants; osseointegration; pathalogy; peri-implantitis; stereology; treatment......autogenous bone graft; guided bone regeneration; histology; membrane; non-human primates; oral implants; osseointegration; pathalogy; peri-implantitis; stereology; treatment...

  9. Low-dose rhBMP2/7 heterodimer to reconstruct peri-implant bone defects: a micro-CT evaluation

    NARCIS (Netherlands)

    Wang, J.; Zheng, Y.; Zhao, J.; Liu, T.; Gao, L.; Gu, Z.; Wu, G.

    2012-01-01

    Objectives To delineate the dynamic micro-architectures of bone induced by low-dose bone morphogenetic protein (BMP)-2/7 heterodimer in peri-implant bone defects compared to BMP2 and BMP7 homodimer. Material and Methods Peri-implant bone defects (8 mm in diameter, 4 mm in depth) were created

  10. Decontamination of titanium implant surface and re-osseointegration to treat peri-implantitis: a literature review

    NARCIS (Netherlands)

    Subramani, K.; Wismeijer, D.

    2012-01-01

    PURPOSE: To review the literature on decontamination of titanium implant surfaces following peri-implantitis and the effect of various cleaning methods on re-osseointegration. MATERIALS AND METHODS: An electronic search of the literature at PubMed was conducted on the studies published between 1966

  11. Synergistic effects of bisphosphonate and calcium phosphate nanoparticles on peri-implant bone responses in osteoporotic rats

    NARCIS (Netherlands)

    Alghamdi, H.S.A.; Bosco, R.; Both, S.K.; Iafisco, M.; Leeuwenburgh, S.C.G.; Jansen, J.A.; Beucken, J.J.J.P van den

    2014-01-01

    The prevalence of osteoporosis will increase within the next decades due to the aging world population, which can affect the bone healing response to dental and orthopedic implants. Consequently, local drug targeting of peri-implant bone has been proposed as a strategy for the enhancement of

  12. The Prosthetic Influence and Biomechanics on Peri-Implant Strain: a Systematic Literature Review of Finite Element Studies

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    Julius Maminskas

    2016-09-01

    Full Text Available Objectives: To systematically review risks of mechanical impact on peri-implant strain and prosthetic influence on stability across finite element studies. Material and Methods: An online literature search was performed on MEDLINE and EMBASE databases published between 2011 and 2016. Following keywords tiered screening and selection of the title, abstract and full-text were performed. Studies of finite element analysis (FEA were considered for inclusion that were written in English and revealed stress concentrations or strain at peri-implant bone level. Results: There were included 20 FEA studies in total. Data were organized according to the following topics: bone layers, type of bone, osseointegration level, bone level, design of implant, diameter and length of implant, implant-abutment connection, type of supra-construction, loading axis, measurement units. The stress or strain at implant-bone contact was measured over all studies and numerical values estimated. Risks of overloading were accented as non-axial loading, misfits, cantilevers and the stability of peri-implant bone was related with the usage of platform switch connection of abutment. Conclusions: Peri-implant area could be affected by non-axial loading, cantilever prosthetic elements, crown/implant ratio, type of implant-abutment connection, misfits, properties of restoration materials and antagonistic tooth. The heterogeneity of finite element analysis studies limits systematization of data. Results of these studies are comparable with other findings of in vitro, in vivo, prospective and retrospective studies.

  13. Analysis of the expression of putatively imprinted genes in bovine peri-implantation embryos

    DEFF Research Database (Denmark)

    Tveden-Nyborg, Pernille Yde; Alexopoulos, N.I.; Cooney, M.A.

    2008-01-01

    The application of assisted reproductive technologies (ART) has been shown to induce changes in the methylation of the embryonic genome, leading to aberrant gene expression, including that of imprinted genes. Aberrant methylation and gene expression has been linked to the large offspring syndrome...... (LOS) in bovine embryos resulting in increased embryonic morbidity and mortality. In the bovine, limited numbers of imprinted genes have been studied and studies have primarily been restricted to pre-implantation stages. This study reports original data on the expression pattern of 8 putatively...... imprinted genes (Ata3, Dlk1, Gnas, Grb10, Magel2, Mest-1, Ndn and Sgce) in bovine peri-implantation embryos. Two embryonic developmental stages were examined, Day 14 and Day 21. The gene expression pattern of single embryos was recorded for in vivo, in vitro produced (IVP) and parthenogenetic embryos...

  14. Reproducibility of subgingival bacterial samples from patients with peri-implant mucositis

    DEFF Research Database (Denmark)

    Hallström, Hadar; Persson, G Rutger; Strömberg, Ulf

    2015-01-01

    collected with paper points and analyzed using the checkerboard DNA-DNA hybridization technique. Whole genomic probes of 74 preselected bacterial species were used. Based on the bacterial scores, Cohen's kappa coefficient was used to calculate the inter-annotator agreement for categorical data......OBJECTIVE: The aim of the present study was to investigate the reproducibility of bacterial enumeration from subsequent subgingival samples collected from patients with peri-implant mucositis. MATERIAL AND METHODS: Duplicate microbial samples from 222 unique implant sites in 45 adult subjects were....... The percentage agreement was considered as "good" when the two samples showed the same score or differed by 1 to the power of 10. RESULTS: Moderate to fair kappa values were displayed for all bacterial species in the test panel (range 0.21-0.58). There were no significant differences between Gram...

  15. In vitro and in vivo investigation of bisphosphonate-loaded hydroxyapatite particles for peri-implant bone augmentation.

    Science.gov (United States)

    Kettenberger, Ulrike; Luginbuehl, Vera; Procter, Philip; Pioletti, Dominique P

    2017-07-01

    Locally applied bisphosphonates, such as zoledronate, have been shown in several studies to inhibit peri-implant bone resorption and recently to enhance peri-implant bone formation. Studies have also demonstrated positive effects of hydroxyapatite (HA) particles on peri-implant bone regeneration and an enhancement of the anti-resorptive effect of bisphosphonates in the presence of calcium. In the present study, both hydroxyapatite nanoparticles (nHA) and zoledronate were combined to achieve a strong reinforcing effect on peri-implant bone. The nHA-zoledronate combination was first investigated in vitro with a pre-osteoclastic cell assay (RAW 264.7) and then in vivo in a rat model of postmenopausal osteoporosis. The in vitro study confirmed that the inhibitory effect of zoledronate on murine osteoclast precursor cells was enhanced by loading the drug on nHA. For the in vivo investigation, either zoledronate-loaded or pure nHA were integrated in hyaluronic acid hydrogel. The gels were injected in screw holes that had been predrilled in rat femoral condyles before the insertion of miniature screws. Micro-CT-based dynamic histomorphometry and histology revealed an unexpected rapid mineralization of the hydrogel in vivo through formation of granules, which served as scaffold for new bone formation. The delivery of zoledronate-loaded nHA further inhibited a degradation of the mineralized hydrogel as well as a resorption of the peri-implant bone as effectively as unbound zoledronate. Hyaluronic acid with zoledronate-loaded nHA, thanks to its dual effect on inducing a rapid mineralization and preventing resorption, is a promising versatile material for bone repair and augmentation. Copyright © 2015 John Wiley & Sons, Ltd. Copyright © 2015 John Wiley & Sons, Ltd.

  16. Fractal analysis of the surgical treatment of ligature-induced peri-implantitis in dogs

    International Nuclear Information System (INIS)

    Kim, Hak Kun; Kim, Jin Soo

    2010-01-01

    To evaluate the effect of surgical treatment of ligature-induced peri-implantitis in dogs using fractal analysis. Also, the capabilities of fractal analysis as bone analysis techniques were compared with those of histomorphometric analysis. A total of 24 implants were inserted in 6 dogs. After a 3-months, experimental periimplantitis characterized by a bone loss of about 3 mm was established by inducing with wires. Surgical treatment involving flap procedure, debridement of implants surface with chlorhexidine and saline (group 1), guided bone regeneration (GBR) with absorbable collagen membrane and mineralized bone graft (group 2), and CO2 laser application with GBR (group 3) were performed. After animals were sacrificed in 8 and 16 weeks respectively, bone sections including implants were made. Fractal dimensions were calculated by box-counting method on the skeletonized images, made from each region of interest, including five screws at medial and distal aspects of implant, were selected. Statistically significant differences in the fractal dimensions between the group 1 (0.9340 ± 0.0126) and group 3 (0.9783 ± 0.0118) at 16 weeks were found (P<0.05). The fractal dimension was statistically significant different between 8 (0.9395 ± 0.0283) and 16 weeks in group 3 (P<0.05). These results were similar with the result of the evaluation of new bone formation in histomorphometric analysis. Treatment of experimental peri-implantitis by using CO2 laser with GBR is more useful than other treatments in the formation of new bone and also the tendency of fractal dimension to increase relative to healing time may be a useful means of evaluating.

  17. Fractal analysis of the surgical treatment of ligature-induced peri-implantitis in dogs

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Hak Kun; Kim, Jin Soo [School of Dentisity, Chosun University, Gwangju (Korea, Republic of)

    2010-09-15

    To evaluate the effect of surgical treatment of ligature-induced peri-implantitis in dogs using fractal analysis. Also, the capabilities of fractal analysis as bone analysis techniques were compared with those of histomorphometric analysis. A total of 24 implants were inserted in 6 dogs. After a 3-months, experimental periimplantitis characterized by a bone loss of about 3 mm was established by inducing with wires. Surgical treatment involving flap procedure, debridement of implants surface with chlorhexidine and saline (group 1), guided bone regeneration (GBR) with absorbable collagen membrane and mineralized bone graft (group 2), and CO2 laser application with GBR (group 3) were performed. After animals were sacrificed in 8 and 16 weeks respectively, bone sections including implants were made. Fractal dimensions were calculated by box-counting method on the skeletonized images, made from each region of interest, including five screws at medial and distal aspects of implant, were selected. Statistically significant differences in the fractal dimensions between the group 1 (0.9340 {+-} 0.0126) and group 3 (0.9783 {+-} 0.0118) at 16 weeks were found (P<0.05). The fractal dimension was statistically significant different between 8 (0.9395 {+-} 0.0283) and 16 weeks in group 3 (P<0.05). These results were similar with the result of the evaluation of new bone formation in histomorphometric analysis. Treatment of experimental peri-implantitis by using CO2 laser with GBR is more useful than other treatments in the formation of new bone and also the tendency of fractal dimension to increase relative to healing time may be a useful means of evaluating.

  18. Immediately loaded mini dental implants as overdenture retainers: 1-Year cohort study of implant stability and peri-implant marginal bone level.

    Science.gov (United States)

    Šćepanović, Miodrag; Todorović, Aleksandar; Marković, Aleksa; Patrnogić, Vesna; Miličić, Biljana; Moufti, Adel M; Mišić, Tijana

    2015-05-01

    This 1-year cohort study investigated stability and peri-implant marginal bone level of immediately loaded mini dental implants used to retain overdentures. Each of 30 edentulous patients received 4 mini dental implants (1.8 mm × 13 mm) in the interforaminal mandibular region. The implants were immediately loaded with pre-made overdentures. Outcome measures included implant stability and bone resorption. Implant stability was measured using the Periotest Classic(®) device immediately after placement and on the 3rd and 6th weeks and the 4th, 6th and 12th months postoperatively. The peri-implant marginal bone level (PIBL) was evaluated at the implant's mesial and distal sides from the polished platform to the marginal crest. Radiographs were taken using a tailored film holder to reproducibly position the X-ray tube at the 6th week, 4th and 12th months postoperatively. The primary stability (Periotest value, PTV) measured -0.27 ± 3.41 on a scale of -8 to + 50 (lower PTV reflects higher stability). The secondary stability decreased significantly until week 6 (mean PTV = 7.61 ± 7.05) then increased significantly reaching (PTV = 6.17 ± 6.15) at 12 months. The mean PIBL measured -0.40 mm after 1 year of functional loading, with no statistically significant differences at the various follow-ups (p = 0.218). Mini dental implants placed into the interforaminal region could achieve a favorable primary stability for immediate loading. The follow-up Periotest values fluctuated, apparently reflecting the dynamics of bone remodeling, with the implants remaining clinically stable (98.3%) after 1 year of function. The 1-year bone resorption around immediately loaded MDIs is within the clinically acceptable range for standard implants. Copyright © 2014 Elsevier GmbH. All rights reserved.

  19. Prevalence and risk indicators of peri-implantitis in Korean patients with a history of periodontal disease: a cross-sectional study

    OpenAIRE

    Goh, Mi-Seon; Hong, Eun-Jin; Chang, Moontaek

    2017-01-01

    Purpose The aim of this study was to analyze the prevalence and risk indicators of peri-implantitis in Korean patients with history of periodontal disease. Methods A total of 444 patients with 1,485 implants were selected from patients who had been treated at the Department of Periodontology, Chonbuk National University Dental Hospital between July 2014 and June 2015. A group with a history of peri-implantitis (HP) (370 patients with 1,189 implants) and a group with a current peri-implantitis...

  20. Analysis of bacterial flora associated with peri-implantitis using obligate anaerobic culture technique and 16S rDNA gene sequence.

    Science.gov (United States)

    Tamura, Naoki; Ochi, Morio; Miyakawa, Hiroshi; Nakazawa, Futoshi

    2013-01-01

    To analyze and characterize the predominant bacterial flora associated with peri-implantitis by using culture techniques under obligate anaerobic conditions and 16S rDNA gene sequences. Subgingival bacterial specimens were taken from 30 patients: control (n = 15), consisting of patients with only healthy implants; and test (n = 15), consisting of patients with peri-implantitis. In both groups, subgingival bacterial specimens were taken from the deepest sites. An anaerobic glove box system was used to cultivate bacterial strains. The bacterial strains were identified by 16S rDNA genebased polymerase chain reaction and comparison of the gene sequences. Peri-implantitis sites had approximately 10-fold higher mean colony forming units (per milliliter) than healthy implant sites. A total of 69 different bacterial species were identified in the peri-implantitis sites and 53 in the healthy implant sites. The predominant bacterial species in the peri-implantitis sites were Eubacterium nodatum, E. brachy, E. saphenum, Filifactor alocis, Slackia exigua, Parascardovia denticolens, Prevotella intermedia, Fusobacterium nucleatum, Porphyromonas gingivalis, Centipeda periodontii, and Parvimonas micra. The predominant bacteria in healthy implant sites apart from Streptococcus were Pseudoramibacter alactolyticus, Veillonella species, Actinomyces israelii, Actinomyces species, Propionibacterium acnes, and Parvimonas micra. These results suggest that the environment in the depths of the sulcus showing peri-implantitis is well suited for growth of obligate anaerobic bacteria. The present study demonstrated that the sulcus around oral implants with peri-implantitis harbors high levels of asaccharolytic anaerobic gram-positive rods (AAGPRs) such as E. nodatum, E. brachy, E. saphenum, Filifactor alocis, Slackia exigua, and gram-negative anaerobic rods, suggesting that conventional periodontopathic bacteria are not the only periodontal pathogens active in peri-implantitis, and that AAGPRs

  1. A fully digital approach to replicate peri-implant soft tissue contours and emergence profile in the esthetic zone.

    Science.gov (United States)

    Monaco, Carlo; Evangelisti, Edoardo; Scotti, Roberto; Mignani, Giuseppe; Zucchelli, Giovanni

    2016-12-01

    This short communication reports on a novel digital technique designated - the "Fully Digital Technique (FDT)" - to take the impression of the peri-implant soft tissue and emergence profile with an intraoral scanner, digitally capturing both the three dimensional position of the implant platform and the coronal and gingival parts of the provisional retained restoration. A first intraoral digital impression, which generated a standard triangulation language file (STL1), was taken using a standardized implant scanbody to detect the position of the implant. A second digital impression (STL2) with the provisional retained restoration in situ was performed in two steps: the first part of the scan captured all details of the vestibular and palatal sides of the provisional retained restoration and the adjacent teeth. The provisional retained restoration was then unscrewed, and the subgingival part of the restoration was scanned directly out of the mouth to determine its subgingival shape. STL1 and STL2 were imported into imaging software and superimposed using the "best fit" algorithm to achieve a new merged file (STL3) with the 3D implant position, the peri-implant mucosa, and emergence profile. The merged file was used to design the CAD/CAM customized abutment and to realize a stereolithographic model by 3D printing. The STL superimposition of digital impressions of the implant position and the provisional retained restoration constitute a novel technique to obtain a single STL file with the implant position and its peri-implant mucosal architecture. FDT is a rapid digital approach for achieving all information of the peri-implant soft tissue and emergence profile directly from the provisional retained restoration. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  2. Biofilm Analysis of Retrieved Dental Implants after Different Peri-Implantitis Treatments

    Directory of Open Access Journals (Sweden)

    Thaise C. Geremias

    2017-01-01

    Full Text Available The aim of the current study was to analyse the planktonic growth of Streptococcus mutans on the surfaces of three implants retrieved after three different peri-implantitis treatments. Three implants from a male patient with high levels of bone loss were treated by mechanical debridement, chemical decontamination, and implantoplasty. After 4 months of follow-up, the implants were removed. The growth and biofilm formation were measured by spectrophotometry (OD630 nm and scanning electron microscopy (SEM, after 48 hours of incubation. Results showed an average of Streptococcus mutans planktonic growth over the implants of 0.21 nm (mechanical debridement, 0.16 nm (chemical decontamination, and 0.15 nm (implantoplasty. Data were analysed by ANOVA and Tukey’s test (p<0.05 for chemical decontamination and implantoplasty. Implantoplasty and chemical decontamination showed the lowest levels of planktonic growth, indicating a possible influence of the modification procedures on the titanium surface on the initial biofilm attachment.

  3. Insufficient irrigation induces peri-implant bone resorption: an in vivo histologic analysis in sheep.

    Science.gov (United States)

    Trisi, Paolo; Berardini, Marco; Falco, Antonello; Podaliri Vulpiani, Michele; Perfetti, Giorgio

    2014-06-01

    To measure in vivo impact of dense bone overheating on implant osseointegration and peri-implant bone resorption comparing different bur irrigation methods vs. no irrigation. Twenty TI-bone implants were inserted in the inferior edge of mandibles of sheep. Different cooling procedures were used in each group: no irrigation (group A), only internal bur irrigation (group B), both internal and external irrigation (group C), and external irrigation (group D). The histomorphometric parameters calculated for each implant were as follows: %cortical bone-implant contact (%CBIC) and %cortical bone volume (%CBV). Friedman's test was applied to test the statistical differences. In group A, we found a huge resorption of cortical bone with %CBIC and %CBV values extremely low. Groups B and C showed mean %CBIC and %BV values higher than other groups The mean %CBV value was significantly different when comparing group B and group C vs. group A (P bone caused massive resorption of the cortical bone and implant failure. Drilling procedures on hard bone need an adequate cooling supply because the bone matrix overheating may induce complete resorption of dense bone around implants. Internal-external irrigation and only internal irrigation showed to be more efficient than other types of cooling methods in preventing bone resorption around implants. © 2013 John Wiley & Sons A/S. Published by Blackwell Publishing Ltd.

  4. Mediator Subunit Med28 Is Essential for Mouse Peri-Implantation Development and Pluripotency.

    Directory of Open Access Journals (Sweden)

    Lin Li

    Full Text Available The multi-subunit mammalian Mediator complex acts as an integrator of transcriptional regulation by RNA Polymerase II, and has emerged as a master coordinator of development and cell fate determination. We previously identified the Mediator subunit, MED28, as a cytosolic binding partner of merlin, the Neurofibromatosis 2 (NF2 tumor suppressor, and thus MED28 is distinct in having a cytosolic role as an NF2 interacting protein as well as a nuclear role as a Mediator complex subunit. Although limited in vitro studies have been performed on MED28, its in vivo function remains unknown. Employing a knockout mouse model, we describe for the first time the requirement for Med28 in the developing mouse embryo. Med28-deficiency causes peri-implantation lethality resulting from the loss of pluripotency of the inner cell mass accompanied by reduced expression of key pluripotency transcription factors Oct4 and Nanog. Further, overexpression of Med28 in mouse embryonic fibroblasts enhances the efficiency of their reprogramming to pluripotency. Cre-mediated inactivation of Med28 in induced pluripotent stem cells shows that Med28 is required for their survival. Intriguingly, heterozygous loss of Med28 results in differentiation of induced pluripotent stem cells into extraembryonic trophectoderm and primitive endoderm lineages. Our findings document the essential role of Med28 in the developing embryo as well as in acquisition and maintenance of pluripotency during reprogramming.

  5. Hydroxyapatite coating affects the Wnt signaling pathway during peri-implant healing in vivo.

    Science.gov (United States)

    Thorfve, A; Lindahl, C; Xia, W; Igawa, K; Lindahl, A; Thomsen, P; Palmquist, A; Tengvall, P

    2014-03-01

    Owing to its bio- and osteoconductivity, hydroxyapatite (HA) is a widely used implant material, but its osteogenic properties are only partly evaluated in vitro and in vivo. The present study focused on bone healing adjacent to HA-coated titanium (Ti) implants, with or without incorporated lithium ions (Li(+)). Special attention was given to the Wnt signaling pathway. The implants were inserted into rat tibia for 7 or 28 days and analyzed ex vivo, mainly by histomorphometry and quantitative real-time polymerase chain reaction (qPCR). HA-coated implants showed, irrespective of Li(+) content, bone-implant contact (BIC) and removal torque values significantly higher than those of reference Ti. Further, the expression of OCN, CTSK, COL1A1, LRP5/6 and WISP1 was significantly higher in implant-adherent cells of HA-coated implants, with or without Li(+). Significantly higher β-catenin expression and significantly lower COL2A1 expression were observed in peri-implant bone cells from HA with 14 ng cm(-2) released Li(+). Interestingly, Ti implants showed a significantly larger bone area (BA) in the threads than HA with 39 ng cm(-2) released Li(+), but had a lower BIC than any HA-coated implant. This study shows that HA, with or without Li(+), is a strong activator of the Wnt signaling pathway, and may to some degree explain its high bone induction capacity. Copyright © 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

  6. Impact of dental implant insertion method on the peri-implant bone tissue: Experimental study

    Directory of Open Access Journals (Sweden)

    Stamatović Novak

    2013-01-01

    Full Text Available Background/Aim. The function of dental implants depends on their stability in bone tissue over extended period of time, i.e. on osseointegration. The process through which osseointegration is achieved depends on several factors, surgical insertion method being one of them. The aim of this study was to histopathologically compare the impact of the surgical method of implant insertion on the peri-implant bone tissue. Methods. The experiment was performed on 9 dogs. Eight weeks following the extraction of lower premolars implants were inserted using the one-stage method on the right mandibular side and two-stage method on the left side. Three months after implantation the animals were sacrificed. Three distinct regions of bone tissue were histopathologically analyzed, the results were scored and compared. Results. In the specimens of one-stage implants increased amount of collagen fibers was found in 5 specimens where tissue necrosis was also observed. Only moderate osteoblastic activity was found in 3 sections. The analysis of bone-to-implant contact region revealed statistically significantly better results regarding the amount of collagen tissue fibers for the implants inserted in the two-stage method (Wa = 59 105, α = 0.05. No necrosis and osteoblastic activity were observed. Conclusion. Better results were achieved by the two-stage method in bone-to-implant contact region regarding the amount of collagen tissue, while the results were identical regarding the osteoblastic activity and bone tissue necrosis. There was no difference between the methods in the bone-implant interface region. In the bone tissue adjacent to the implant the results were identical regarding the amount of collagen tissue, osteoblastic reaction and bone tissue necrosis, while better results were achieved by the two-stage method regarding the number of osteocytes.

  7. Simulation of peri-implant bone healing due to immediate loading in dental implant treatments.

    Science.gov (United States)

    Chou, Hsuan-Yu; Müftü, Sinan

    2013-03-15

    The goal of this work was to investigate the role of immediate loading on the peri-implant bone healing in dental implant treatments. A mechano-regulatory tissue differentiation model that takes into account the stimuli through the solid and the fluid components of the healing tissue, and the diffusion of pluripotent stem cells into the healing callus was used. A two-dimensional axisymmetric model consisting of a dental implant, the healing callus tissue and the host bone tissue was constructed for the finite element analysis. Poroelastic material properties were assigned to the healing callus and the bone tissue. The effects of micro-motion, healing callus size, and implant thread design on the length of the bone-to-implant contact (BIC) and the bone volume (BV) formed in the healing callus were investigated. In general, the analysis predicted formation of a continuous layer of soft tissue along the faces of the implant which are parallel to the loading direction. This was predicted to be correlated with the high levels of distortional strain transferred through the solid component of the stimulus. It was also predicted that the external threads on the implant, redistribute the interfacial load, thus help reduce the high distortional stimulus and also help the cells to differentiate to bone tissue. In addition, the region underneath the implant apex was predicted to experience high fluid stimulus that results in the development of soft tissue. The relationship between the variables considered in this study and the outcome measures, BV and BIC, was found to be highly nonlinear. A three-way analysis of variance (ANOVA) of the results was conducted and it showed that micro-motion presents the largest hindrance to bone formation during healing. Copyright © 2013 Elsevier Ltd. All rights reserved.

  8. An in vivo assessment of the effects of using different implant abutment occluding materials on implant microleakage and the peri-implant microbiome

    Science.gov (United States)

    Rubino, Caroline

    Microleakage may be a factor in the progression of peri-implant pathology. Microleakage in implant dentistry refers to the passage of bacteria, fluids, molecules or ions between the abutment-implant interface to and from the surrounding periodontal tissues. This creates a zone of inflammation and reservoir of bacteria at the implant-abutment interface. Bone loss typically occurs within the first year of abutment connection and then stabilizes. It has not yet been definitively proven that the occurrence of microleakage cannot contribute to future bone loss or impede the treatment of peri-implant disease. Therefore, strategies to reduce or eliminate microleakage are sought out. Recent evidence demonstrates that the type of implant abutment channel occluding material can affect the amount of microleakage in an in vitro study environment. Thus, we hypothesize that different abutment screw channel occluding materials will affect the amount of observed microleakage, vis-a-vis the correlation between the microflora found on the abutment screw channel occluding material those found in the peri-implant sulcus. Additional objectives include confirming the presence of microleakage in vivo and assessing any impact that different abutment screw channel occluding materials may have on the peri-implant microbiome. Finally, the present study provides an opportunity to further characterize the peri-implant microbiome. Eight fully edentulous patients restored with at dental implants supporting screw-retained fixed hybrid prostheses were included in the study. At the initial appointment (T1), the prostheses were removed and the implants and prostheses were cleaned. The prostheses were then inserted with polytetrafluoroethylene tape (PTFE, TeflonRTM), cotton, polyvinyl siloxane (PVS), or synthetic foam as the implant abutment channel occluding material and sealed over with composite resin. About six months later (T2), the prostheses were removed and the materials collected. Paper

  9. Expression of HMGB1 and HMGN2 in gingival tissues, GCF and PICF of periodontitis patients and peri-implantitis

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    Ping Xie

    2011-09-01

    Full Text Available High mobility group chromosomal protein B1 (HMGB1 and N2 (HMGN2, two members of High mobility group (HMG family, play important role in inflammation. The purposes of this study were to investigate the expression of HMGB1 and HMGN2 in periodontistis. The expression of HMGB1 and HMGN2 mRNA in gingival tissues and gingival crevicular fluid (GCF in chronic periodontitis (CP, generalized aggressive periodontitis (G-AgP patients and healthy subjects was detected by real-time PCR. The protein level of HMGB1 and HMGN2 in peri-implant crevicular fluid (PICF, peri-implant crevicular fluid of peri-implantitis (PI-PICF and normal patients was determined by Western blotting. Furthermore, IL-1β, IL-6, IL-8, TNF-α and HMGB1 levels in GCF, PI-PICF and healthy-PICF samples from different groups were determined by ELISA. HMGN2 expression was increased in inflamed gingival tissues and GCF from CP and G-ApG groups compared to control group. HMGB1 expression was the highest in the gingival tissues and GCF from CP patients and was accompanied by increased concentrations of IL-1β, IL-6, IL-8 proinflammaory cytokines. To our knowledge, this is the first study reporting that the expression of HMGB1 and HMGN2 was increased in the gingival tissues and GCF in CP and G-AgP and the PICF in PICF. Our data suggest that HMGB1 may be a potential target for the therapy of periodontitis and PI.

  10. Synergistic effects of bisphosphonate and calcium phosphate nanoparticles on peri-implant bone responses in osteoporotic rats.

    Science.gov (United States)

    Alghamdi, Hamdan S; Bosco, Ruggero; Both, Sanne K; Iafisco, Michele; Leeuwenburgh, Sander C G; Jansen, John A; van den Beucken, Jeroen J J P

    2014-07-01

    The prevalence of osteoporosis will increase within the next decades due to the aging world population, which can affect the bone healing response to dental and orthopedic implants. Consequently, local drug targeting of peri-implant bone has been proposed as a strategy for the enhancement of bone-implant integration in osteoporotic conditions. In the present study, an established in-vivo femoral condyle implantation model in osteoporotic and healthy bone is used to analyze the osteogenic capacity of titanium implants coated with bisphosphonate (BP)-loaded calcium phosphate nanoparticles (nCaP) under compromised medical conditions. After 4 weeks of implantation, peri-implant bone volume (%BV; by μCT) and bone area (%BA; by histomorphometry) were significantly increased within a distance of 500 μm from implant surfaces functionalized with BP compared to control implants in osteoporotic and healthy conditions. Interestingly, the deposition of nCaP/BP coatings onto implant surfaces increased both peri-implant bone contact (%BIC) and volume (%BV) compared to the deposition of nCaP or BP coatings individually, in osteoporotic and healthy conditions. The results of real-time PCR revealed similar osteogenic gene expression levels to all implant surfaces at 4-weeks post-implantation. In conclusion, simultaneous targeting of bone formation (by nCaP) and bone resorption (by BP) using nCaP/BP surface coatings represents an effective strategy for synergistically improvement of bone-implant integration, especially in osteoporotic conditions. Copyright © 2014 Elsevier Ltd. All rights reserved.

  11. Esthetic Evaluation of Implant Crowns and Peri-Implant Soft Tissue in the Anterior Maxilla: Comparison and Reproducibility of Three Different Indices.

    Science.gov (United States)

    Tettamanti, Sandro; Millen, Christopher; Gavric, Jelena; Buser, Daniel; Belser, Urs C; Brägger, Urs; Wittneben, Julia-Gabriela

    2016-06-01

    A successful implant reconstruction with optimal esthetics consists of a visually pleasing prosthesis and complete and healthy surrounding soft tissue. In the current literature, numerous indices used to qualitatively assess esthetics have been described. However, studies comparing the indices and their reproducibility are scarce. The aim of this study was to compare three different esthetic indices for the evaluation of single implant-supported crowns. A total of 10 prosthodontists (P), 10 orthodontists (O), 10 general dentists (G), and 10 lay people (L) independently performed the same assessment using 30 photographs and corresponding casts with three different esthetic indices (Peri-Implant and Crown Index [PICI], Implant Crown Aesthetic Index [ICAI], "Pink Esthetic Score/White Esthetic Score [PES/WES]) and repeated the evaluations 4 weeks later. The PES/WES and the PICI showed significantly higher esthetic scores (pink, white, total) and clinical acceptance compared with the ICAI in all four groups and in both assessments. The highest intraobserver agreement was achieved using the PES/WES and the least with the ICAI. The mean Kappa per group ranged from 0.18 (group L with ICAI) to 0.63 (group G with PICI). In comparison with the ICAI, the PES/WES and PICI were more reproducible. Therefore, PES/WES and PICI seem to be more suitable as esthetic indices for single implant crowns. © 2015 Wiley Periodicals, Inc.

  12. Combining 3-dimensional degradable electrostatic spinning scaffold and dental follicle cells to build peri-implant periodontium

    Directory of Open Access Journals (Sweden)

    Ximu Zhang

    2013-01-01

    Full Text Available Introduction: Some inevitable problems, such as concentrated bite force and lacked ability of self-renewal, are proved to be the major challenge in the management of implants failures. Thus, it is meaningful to find an ideal dental implant harboring its own peri-implant periodontium, just as the natural teeth. Various studies attempted to reconstruct the periodontium around implants, but unfortunately, it was previously revealed that the artificial periodotium around implants was just a wilderness of fibers, while without the physiological function of natural periodontium, like sensory and homeostatic. The Hypothesis: In this paper, we propose a hypothesis that a modified three-dimensional scaffold with reconstructed peri-implant tissues can be a network for stem cells differentiation. After seeded on the scaffold, stem cells produce various growth factors and differentiate to different orientations in places necessary. This hypothesis, if proven to be valid, will offer a novel and effective therapy for the restoration of missing teeth by implant. Evaluation of the Hypothesis: The scaffold involves three different tissues. Though degradation rate of electrospinning scaffold is under control, its degradation rate should be in consistent with the generation of three tissues. Therefore, the relative experiments are necessary to define the best rate of degradation. Further verification is necessary to check whether the rebuilt cementum, bone and periodontium are strong enough to keep the implant stable and maintain its function.

  13. A new classification of peri-implant bone morphology: a radiographic study of patients with lower implant-supported mandibular overdentures

    NARCIS (Netherlands)

    Zhang, L.; Geraets, W.; Zhou, Y.; Wu, W.; Wismeijer, D.

    2014-01-01

    Objective This study aimed to classify peri-implant bone defects (PIBDs) on the basis of their radiographic appearance in a cohort of patients with lower implant-supported overdentures. Materials and methods Eighty-three patients with lower implant-supported overdentures were recruited to

  14. Effects of the implant design on peri-implant bone stress and abutment micromovement: three-dimensional finite element analysis of original computer-aided design models.

    Science.gov (United States)

    Yamanishi, Yasufumi; Yamaguchi, Satoshi; Imazato, Satoshi; Nakano, Tamaki; Yatani, Hirofumi

    2014-09-01

    Occlusal overloading causes peri-implant bone resorption. Previous studies examined stress distribution in alveolar bone around commercial implants using three-dimensional (3D) finite element analysis. However, the commercial implants contained some different designs. The purpose of this study is to reveal the effect of the target design on peri-implant bone stress and abutment micromovement. Six 3D implant models were created for different implant-abutment joints: 1) internal joint model (IM); 2) external joint model (EM); 3) straight abutment (SA) shape; 4) tapered abutment (TA) shapes; 5) platform switching (PS) in the IM; and 6) modified TA neck design (reverse conical neck [RN]). A static load of 100 N was applied to the basal ridge surface of the abutment at a 45-degree oblique angle to the long axis of the implant. Both stress distribution in peri-implant bone and abutment micromovement in the SA and TA models were analyzed. Compressive stress concentrated on labial cortical bone and tensile stress on the palatal side in the EM and on the labial side in the IM. There was no difference in maximum principal stress distribution for SA and TA models. Tensile stress concentration was not apparent on labial cortical bone in the PS model (versus IM). Maximum principal stress concentrated more on peri-implant bone in the RN than in the TA model. The TA model exhibited less abutment micromovement than the SA model. This study reveals the effects of the design of specific components on peri-implant bone stress and abutment displacement after implant-supported single restoration in the anterior maxilla.

  15. Effect of Integration Patterns Around Implant Neck on Stress Distribution in Peri-Implant Bone: A Finite Element Analysis.

    Science.gov (United States)

    Han, Jingyun; Sun, Yuchun; Wang, Chao

    2017-08-01

    To investigate the biomechanical performance of different osseointegration patterns between cortical bone and implants using finite element analysis. Fifteen finite element models were constructed of the mandibular fixed prosthesis supported by implants. Masticatory loads (200 N axial, 100 N oblique, 40 N horizontal) were applied. The cortical bone/implant interface was divided equally into four layers: upper, upper-middle, lower-middle, and lower. The bone stress and implant displacement were calculated for 5 degrees of uniform integration (0, 20%, 40%, 60%, and 100%) and 10 integration patterns. The stress was concentrated in the bone margin and gradually decreased as osseointegration progressed, when the integrated and nonintegrated areas were alternated on the bone-implant surface. Compared with full integration, the integration of only the lower-middle layer or lower half layers significantly decreased von Mises, tensile, and compressive stresses in cortical bone under oblique and horizontal loads, and these patterns did not induce higher stress in the cancellous bone. For the integration of only the upper or upper-middle layer, stress in the cortical and cancellous bones significantly increased and was considerably higher than in the case of nonintegration. In addition, the maximum stress in the cortical bone was sensitive to the quantity of integrated nodes at the bone margin; lower quantity was associated with higher stress. There was no significant difference in the displacement of implants among 15 models. Integration patterns of cortical bone significantly affect stress distribution in peri-implant bone. The integration of only the lower-middle or lower half layers helps to increase the load-bearing capacity of peri-implant bone and decrease the risk of overloading, while upper integration may further increase the risk of bone resorption. © 2016 by the American College of Prosthodontists.

  16. Prevalence of Dental Implants and Evaluation of Peri-implant Bone Levels in Patients Presenting to a Dental School: A Radiographic Cross-Sectional 2-Year Study.

    Science.gov (United States)

    Alkan, Eylem Ayhan; Mau, Lian Ping; Schoolfield, John; Guest, Gary F; Cochran, David L

    To evaluate the number of patients with dental implants who present to a dental school clinic for screening and to report the prevalence of peri-implant bone level change detected on digital panoramic radiographs of those subjects. Patient screening files for 9,422 patients over a 2-year period were examined to see how many patients presented with dental implants. Those patients with at least one implant were further evaluated by measuring the bone level on the mesial and distal sides of the implant using the screening radiograph. A total of 187 patients (2%) had at least one implant. In regard to implants, 423 were examined and 146 (33%) had no detectable bone loss defined as bone level below the top of the implant. When thresholds of bone loss were evaluated, 109 implants (25%) had ≥ 2 mm of bone loss on either the mesial or distal sides or both. The median bone loss was 1.74 mm for the 277 implants with detectable bone loss and 2.97 mm for the 109 implants that had ≥ 2 mm bone loss. Interestingly, patients who were ≥ 70 years of age had significantly (P = .03) more bone loss in the mandible compared with the maxilla, while patients who were 60 to 69 years of age had significantly greater loss in the maxilla. These data reveal that for patients presenting to the dental school for a screening over a 2-year period, 1.98% had one or more dental implants. Furthermore, those patients with implants had a minimum amount of bone loss as measured from the top of the implant.

  17. Management of Retrograde Peri-Implantitis Using an Air-Abrasive Device, Er,Cr:YSGG Laser, and Guided Bone Regeneration

    Directory of Open Access Journals (Sweden)

    Nikolaos Soldatos

    2018-01-01

    Full Text Available Background. The placement of an implant in a previously infected site is an important etiologic factor contributing to implant failure. The aim of this case report is to present the management of retrograde peri-implantitis (RPI in a first maxillary molar site, 2 years after the implant placement. The RPI was treated using an air-abrasive device, Er,Cr:YSGG laser, and guided bone regeneration (GBR. Case Description. A 65-year-old Caucasian male presented with a draining fistula associated with an implant at tooth #3. Tooth #3 revealed periapical radiolucency two years before the implant placement. Tooth #3 was extracted, and a ridge preservation procedure was performed followed by implant rehabilitation. A periapical radiograph (PA showed lack of bone density around the implant apex. The site was decontaminated with an air-abrasive device and Er,Cr:YSGG laser, and GBR was performed. The patient was seen every two weeks until suture removal, followed by monthly visits for 12 months. The periapical X-rays, from 6 to 13 months postoperatively, showed increased bone density around the implant apex, with no signs of residual clinical or radiographic pathology and probing depths ≤4 mm. Conclusions. The etiology of RPI in this case was the placement of an implant in a previously infected site. The use of an air-abrasive device, Er,Cr:YSGG, and GBR was utilized to treat this case of RPI. The site was monitored for 13 months, and increased radiographic bone density was noted.

  18. The influence of repeated abutment changes on peri-implant tissue stability: 3-year post-loading results from a multicentre randomised controlled trial.

    Science.gov (United States)

    Bressan, Eriberto; Grusovin, Maria Gabriella; D'Avenia, Ferdinando; Neumann, Konrad; Sbricoli, Luca; Luongo, Giuseppe; Esposito, Marco

    To evaluate the influence of at least three abutment disconnections in conventional loaded implants against placement of a definitive abutment in immediately non-occlusal loaded implants on hard and soft tissue changes. A secondary aim was to evaluate whether the presence of less than 2 mm of keratinised mucosa is associated with increased peri-implant marginal bone loss and soft tissue recessions. Eighty patients requiring one single crown or one fixed partial prosthesis supported by a maximum of three implants were randomised, after implants were placed with more than 35 Ncm, according to a parallel group design to receive definitive abutments that were loaded immediately (definitive abutment or immediate loading group) or transmucosal abutments, which were delayed loaded after 3 months and removed at least three times: 1. At impression taking (3 months after implant placement); 2. When checking the zirconium core on titanium abutments at single crowns or the fitting the metal structure at prostheses supported by multiple implants; 3. At delivery of the definitive prostheses (repeated disconnection or conventional loading group). Patients were treated at four centres and each patient contributed to the study, with only one prosthesis followed for 3 years after initial loading. Outcome measures were: prosthesis failures, implant failures, complications, pink aesthetic score (PES), buccal recessions, patient satisfaction, peri-implant marginal bone level changes and height of the keratinised mucosa. Forty patients were randomly allocated to each group according to a parallel group design. Six patients from the definitive abutment group dropped out or died, and one left from the repeated disconnection group. One implant, from the repeated disconnection group, fractured (difference = 3%; CI 95%: -2%, 8%; P = 1). Four provisional crowns and one definitive single crown had to be remade because of poor fitting, and one definitive crown and one definitive prosthesis

  19. (68)Ga-DOTA-Siglec-9 PET/CT imaging of peri-implant tissue responses and staphylococcal infections.

    Science.gov (United States)

    Ahtinen, Helena; Kulkova, Julia; Lindholm, Laura; Eerola, Erkki; Hakanen, Antti J; Moritz, Niko; Söderström, Mirva; Saanijoki, Tiina; Jalkanen, Sirpa; Roivainen, Anne; Aro, Hannu T

    2014-01-01

    Staphylococcus epidermidis (S. epidermidis) has emerged as one of the leading pathogens of biomaterial-related infections. Vascular adhesion protein-1 (VAP-1) is an inflammation-inducible endothelial molecule controlling extravasation of leukocytes. Sialic acid-binding immunoglobulin-like lectin 9 (Siglec-9) is a leukocyte ligand of VAP-1. We hypothesized that (68)Ga-labeled 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid-conjugated Siglec-9 motif containing peptide ((68)Ga-DOTA-Siglec-9) could detect inflammatory response due to S. epidermidis peri-implant infection by positron emission tomography (PET). Thirty Sprague-Dawley rats were randomized into three groups. A sterile catheter was implanted into the medullary canal of the left tibia. In groups 1 and 2, the implantation was followed by peri-implant injection of S. epidermidis or Staphylococcus aureus (S. aureus) with adjunct injections of aqueous sodium morrhuate. In group 3, sterile saline was injected instead of bacteria and no aqueous sodium morrhuate was used. At 2 weeks after operation, (68)Ga-DOTA-Siglec-9 PET coupled with computed tomography (CT) was performed with the measurement of the standardized uptake value (SUV). The presence of the implant-related infection was verified by microbiological analysis, imaging with fluorescence microscope, and histology. The in vivo PET results were verified by ex vivo measurements by gamma counter. In group 3, the tibias with implanted sterile catheters showed an increased local uptake of (68)Ga-DOTA-Siglec-9 compared with the intact contralateral bones (SUVratio +29.5%). (68)Ga-DOTA-Siglec-9 PET detected inflammation induced by S. epidermidis and S. aureus catheter-related bone infections (SUVratio +58.1% and +41.7%, respectively). The tracer uptake was significantly higher in the S. epidermidis group than in group 3 without bacterial inoculation, but the difference between S. epidermidis and S. aureus groups was not statistically significant. The

  20. Risk Factors for Peri-Implantitis: Effect of History of Periodontal Disease and Smoking Habits. A Systematic Review and Meta-Analysis

    Directory of Open Access Journals (Sweden)

    Claudio Stacchi

    2016-09-01

    Full Text Available Objectives: The purpose of this review was to evaluate whether history of periodontitis and smoking habits could represent a risk factor for peri-implantitis and implant loss. Material and Methods: This systematic review followed PRISMA guidelines and was registered at the PROSPERO database [registration numbers CRD42016034160 (effect of history of periodontitis and CRD42016033676 (effect of smoking]. Broad electronic (MEDLINE and manual searches were conducted among articles published from January 1st 1990 up to December 31st 2015, resulting in 49332 records for history of periodontitis and 3199 for smoking habits. Selection criteria included prospective studies comparing two cohorts of patients, with and without the investigated risk factor, with a minimum follow-up period of three years, and reporting data on peri-implantitis and implant loss occurrence. Considering that only prospective studies were included, dichotomous data were expressed as risk ratios and 95% confidence intervals. Results: Three studies evaluating history of periodontitis (on which quantitative analysis was performed and one study on smoking effect were included. Both implant and patient-based meta-analyses revealed a significantly higher risk of developing peri-implantitis in patients with a history of periodontitis compared with periodontally healthy subjects, but not a statistically significant increased risk for implant loss. Conclusions: The outcomes of this systematic review indicate history of periodontitis as a possible risk factor for peri-implantitis, while insufficient data are present in literature to evaluate the role of smoking. However, available evidence is still weak and immature, and sound epidemiological studies are needed to analyse the specific contribution of these potential risk factors.

  1. Generation of an rhBMP-2-loaded beta-tricalcium phosphate/hydrogel composite and evaluation of its efficacy on peri-implant bone formation

    International Nuclear Information System (INIS)

    Lee, Jae Hyup; Baek, Hae-Ri; Lee, Ji-Ho; Ryu, Mi Young; Seo, Jun-Hyuk; Lee, Kyung-Mee

    2014-01-01

    Dental implant insertion on a site with low bone quality or bone defect should be preceded by a bone graft or artificial bone graft insertion to heal the defect. We generated a beta-tricalcium phosphate (β-TCP) and poloxamer 407-based hydrogel composite and penetration of the β-TCP/hydrogel composite into the peri-implant area of bone was evaluated by porous bone block experiments. The maximum penetration depth for porous bone blocks and dense bone blocks were 524 μm and 464 μm, respectively. We report the in-vivo performance of a composite of β-TCP/hydrogel composite as a carrier of recombinant human bone morphogenetic protein (rhBMP-2), implanted into a rabbit tibial defect model. Three holes drilled into each tibia of eight male rabbits were (1) grafted with dental implant fixtures; (2) filled with β-TCP/hydrogel composite (containing 5 μg of rhBMP-2), followed by grafting of the dental implant fixtures. Four weeks later, bone-implant contact ratio and peri-implant bone formation were analyzed by radiography, micro-CT and histology of undecalcified specimens. The micro-CT results showed a significantly higher level of trabecular thickness and new bone and peri-implant new bone formation in the experimental treatment compared to the control treatment. Histomorphometry revealed a significantly higher bone-implant contact ratio and peri-implant bone formation with the experimental treatment. The use of β-TCP/poloxamer 407 hydrogel composite as a carrier of rhBMP-2 significantly promoted new bone formation around the dental implant fixture and it also improved the quality of the new bone formed in the tibial marrow space. (paper)

  2. Influence of Implant Positions and Occlusal Forces on Peri-Implant Bone Stress in Mandibular Two-Implant Overdentures: A 3-Dimensional Finite Element Analysis.

    Science.gov (United States)

    Alvarez-Arenal, Angel; Gonzalez-Gonzalez, Ignacio; deLlanos-Lanchares, Hector; Brizuela-Velasco, Aritza; Dds, Elena Martin-Fernandez; Ellacuria-Echebarria, Joseba

    2017-12-01

    The aim of this study was to evaluate and compare the bone stress around implants in mandibular 2-implant overdentures depending on the implant location and different loading conditions. Four 3-dimensional finite element models simulating a mandibular 2-implant overdenture and a Locator attachment system were designed. The implants were located at the lateral incisor, canine, second premolar, and crossed-implant levels. A 150 N unilateral and bilateral vertical load of different location was applied, as was 40 N when combined with midline load. Data for von Mises stress were produced numerically, color coded, and compared between the models for peri-implant bone and loading conditions. With unilateral loading, in all 4 models much higher peri-implant bone stress values were recorded on the load side compared with the no-load side, while with bilateral occlusal loading, the stress distribution was similar on both sides. In all models, the posterior unilateral load showed the highest stress, which decreased as the load was applied more mesially. In general, the best biomechanical environment in the peri-implant bone was found in the model with implants at premolar level. In the crossed-implant model, the load side greatly altered the biomechanical environment. Overall, the overdenture with implants at second premolar level should be the chosen design, regardless of where the load is applied. The occlusal loading application site influences the bone stress around the implant. Bilateral occlusal loading distributes the peri-implant bone stress symmetrically, while unilateral loading increases it greatly on the load side, no matter where the implants are located.

  3. Detection of five potentially periodontal pathogenic bacteria in peri-implant disease: A comparison of PCR and real-time PCR.

    Science.gov (United States)

    Schmalz, Gerhard; Tsigaras, Sandra; Rinke, Sven; Kottmann, Tanja; Haak, Rainer; Ziebolz, Dirk

    2016-07-01

    The aim of this study was to compare the microbial analysis methods of polymerase chain reaction (PCR) and real-time PCR (RT-PCR) in terms of detection of five selected potentially periodontal pathogenic bacteria in peri-implant disease. Therefore 45 samples of healthy, mucositis and peri-implantitis (n = 15 each) were assessed according to presence of the following bacteria using PCR (DNA-strip technology) and RT-PCR (fluorescent dye SYBR green-system): Aggregatibacter actinomycetemcomitans (Aa), Porphyromonas gingivalis (Pg), Treponema denticola (Td), Tanerella forsythia (Tf), and Fusobacterium nucleatum (Fn). There were no significant correlations between the bacterial and disease patterns, so the benefit of using microbiological tests for the diagnosis of peri-implant diseases is questionable. Correlations between the methods were highest for Tf (Kendall's Tau: 0.65, Spearman: 0.78), Fn (0.49, 0.61) and Td (0.49, 0.59). For Aa (0.38, 0.42) and Pg (0.04, 0.04), lower correlation values were detected. Accordingly, conventional semi-quantitative PCR seems to be sufficient for analyzing potentially periodontal pathogenic bacterial species. Copyright © 2016 Elsevier Inc. All rights reserved.

  4. Peri-implant bone strains and micro-motion following in vivo service: a postmortem retrieval study of 22 tibial components from total knee replacements.

    Science.gov (United States)

    Mann, Kenneth A; Miller, Mark A; Goodheart, Jacklyn R; Izant, Timothy H; Cleary, Richard J

    2014-03-01

    Biological adaptation following placement of a total knee replacements (TKRs) affects peri-implant bone mineral density (BMD) and implant fixation. We quantified the proximal tibial bone strain and implant-bone micro-motion for functioning postmortem retrieved TKRs and assessed the strain/micro-motion relationships with chronological (donor age and time in service) and patient (body weight and BMD) factors. Twenty-two tibial constructs were functionally loaded to one body weight (60% medial/40% lateral), and the bone strains and tray/bone micro-motions were measured using a digital image correlation system. Donors with more time in service had higher bone strains (p = 0.044), but there was not a significant (p = 0.333) contribution from donor age. Donors with lower peri-implant BMD (p = 0.0039) and higher body weight (p = 0.0286) had higher bone strains. Long term implants (>11 years) had proximal bone strains 900 µϵ that were almost twice as high as short term (implants 570 µϵ. Micro-motion was greater for younger donors (p = 0.0161) and longer time in service (p = 0.0008). Increased bone strain with long term in vivo service could contribute to loosening of TKRs by failure of the tibial peri-implant bone. © 2013 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.

  5. Primary Bovine Extra-Embryonic Cultured Cells: A New Resource for the Study of In Vivo Peri-Implanting Phenotypes and Mesoderm Formation.

    Directory of Open Access Journals (Sweden)

    Isabelle Hue

    Full Text Available In addition to nourishing the embryo, extra-embryonic tissues (EETs contribute to early embryonic patterning, primitive hematopoiesis, and fetal health. These tissues are of major importance for human medicine, as well as for efforts to improve livestock efficiency, but they remain incompletely understood. In bovines, EETs are accessible easily, in large amounts, and prior to implantation. We took advantage of this system to describe, in vitro and in vivo, the cell types present in bovine EETs at Day 18 of development. Specifically, we characterized the gene expression patterns and phenotypes of bovine extra-embryonic ectoderm (or trophoblast; bTC, endoderm (bXEC, and mesoderm (bXMC cells in culture and compared them to their respective in vivo micro-dissected cells. After a week of culture, certain characteristics (e.g., gene expression of the in vitro cells were altered with respect to the in vivo cells, but we were able to identify "cores" of cell-type-specific (and substrate-independent genes that were shared between in vitro and in vivo samples. In addition, many cellular phenotypes were cell-type-specific with regard to extracellular adhesion. We evaluated the ability of individual bXMCs to migrate and spread on micro-patterns, and observed that they easily adapted to diverse environments, similar to in vivo EE mesoderm cells, which encounter different EE epithelia to form chorion, yolk sac, and allantois. With these tissue interactions, different functions arose that were detected in silico and corroborated in vivo at D21-D25. Moreover, analysis of bXMCs allowed us to identify the EE cell ring surrounding the embryonic disc (ED at D14-15 as mesoderm cells, which had been hypothesized but not shown prior to this study. We envision these data will serve as a major resource for the future in the analysis of peri-implanting phenotypes in response to the maternal metabolism and contribute to subsequent studies of placental/fetal development in

  6. Effect of joining the sectioned implant-supported prosthesis on the peri-implant strain generated in simulated mandibular model

    Directory of Open Access Journals (Sweden)

    Ipsha Singh

    2017-01-01

    Full Text Available Aim: The aim of this study is to evaluate the strain developed in simulated mandibular model before and after the joining of an implant-supported screw-retained prosthesis by different joining techniques, namely, arc welding, laser welding, and soldering. Materials and Methods: A specimen simulating a mandibular edentulous ridge was fabricated in heat-cured acrylic resin. 4-mm holes were drilled in the following tooth positions; 36, 33, 43, 46. Implant analogs were placed in the holes. University of California, Los Angeles, abutment was attached to the implant fixture. Eight strain gauges were attached to the acrylic resin model. Six similar models were made. Implant-supported screw-retained fixed prosthesis was fabricated in nickel-chromium alloy. A load of 400 N was applied on the prosthesis using universal testing machine. Resultant strain was measured in each strain gauge. All the prostheses were sectioned at the area between 36 and 33, 33 and 43, and 43 and 46 using 35 micrometer carborundum disc, and strain was measured in each strain gauge after applying a load of 400 N on the prosthesis. Specimens were joined by arc welding, soldering, and laser welding. After joining, a load of 400 N was applied on each prosthesis and the resultant strain was measured in each strain gauge. Results: Highest mean strain values were recorded before sectioning of the prostheses (889.9 microstrains. Lowest mean strain values were recorded after sectioning the prosthesis and before reuniting it (225.0 microstrains. Conclusions: Sectioning and reuniting the long-span implant prosthesis was found to be a significant factor in influencing the peri-implant strain.

  7. Effect of joining the sectioned implant-supported prosthesis on the peri-implant strain generated in simulated mandibular model.

    Science.gov (United States)

    Singh, Ipsha; Nair, K Chandrasekharan; Shetty, Jayakar

    2017-01-01

    The aim of this study is to evaluate the strain developed in simulated mandibular model before and after the joining of an implant-supported screw-retained prosthesis by different joining techniques, namely, arc welding, laser welding, and soldering. A specimen simulating a mandibular edentulous ridge was fabricated in heat-cured acrylic resin. 4-mm holes were drilled in the following tooth positions; 36, 33, 43, 46. Implant analogs were placed in the holes. University of California, Los Angeles, abutment was attached to the implant fixture. Eight strain gauges were attached to the acrylic resin model. Six similar models were made. Implant-supported screw-retained fixed prosthesis was fabricated in nickel-chromium alloy. A load of 400 N was applied on the prosthesis using universal testing machine. Resultant strain was measured in each strain gauge. All the prostheses were sectioned at the area between 36 and 33, 33 and 43, and 43 and 46 using 35 micrometer carborundum disc, and strain was measured in each strain gauge after applying a load of 400 N on the prosthesis. Specimens were joined by arc welding, soldering, and laser welding. After joining, a load of 400 N was applied on each prosthesis and the resultant strain was measured in each strain gauge. Highest mean strain values were recorded before sectioning of the prostheses (889.9 microstrains). Lowest mean strain values were recorded after sectioning the prosthesis and before reuniting it (225.0 microstrains). Sectioning and reuniting the long-span implant prosthesis was found to be a significant factor in influencing the peri-implant strain.

  8. Assessment of the effects of laser photobiomodulation on peri-implant bone repair through energy dispersive x-ray fluorescence: A study of dogs

    Science.gov (United States)

    Menezes, R. F.; Araújo, N. C.; Carneiro, V. S. M.; Moreno, L. M.; Guerra, L. A. P.; Santos Neto, A. P.; Gerbi, M. E. M.

    2016-03-01

    Bone neoformation is essential in the osteointegration of implants and has been correlated with the repair capacity of tissues, the blood supply and the function of the cells involved. Laser therapy accelerates the mechanical imbrication of peri-implant tissue by increasing osteoblastic activity and inducing ATP, osteopontin and the expression of sialoproteins. Objective: The aim of the present study was to assess peri-implant bone repair using the tibia of dogs that received dental implants and laser irradiation (AsGaAl 830nm - 40mW, CW, f~0.3mm) through Energy Dispersive X-ray Fluorescence (EDXRF). Methodology: Two groups were established: G1 (Control, n=20; two dental implants were made in the tibia of each animal; 10 animals); G2 (Experimental, n=20, two dental implants were made in the tibia each animal + Laser therapy; 10 animals). G2 was irradiated every 48 hours for two weeks, with a total of seven sessions. The first irradiation was conducted during the surgery, at which time a point in the surgical alveolus was irradiated prior to the placement of the implant and four new spatial positions were created to the North, South, East and West (NSEW) of the implant. The subsequent sessions involved irradiation at these four points and at one infra-implant point (in the direction of the implant apex). Each point received 4J/cm2 and a total dose of 20J/cm2 per session (treatment dose=140J/cm2). The specimens were removed 15 and 30 days after the operation for the EDXRF test. The Mann- Whitney statistical test was used to assess the results. Results: The increase in the calcium concentration in the periimplant region of the irradiated specimens (G2) was statistically significant (p repair in the peri-implant region.

  9. Effect of implant position, angulation, and attachment height on peri-implant bone stress associated with mandibular two-implant overdentures: a finite element analysis.

    Science.gov (United States)

    Hong, Hae Ryong; Pae, Ahran; Kim, Yooseok; Paek, Janghyun; Kim, Hyeong-Seob; Kwon, Kung-Rock

    2012-01-01

    The aim of this study was to analyze and compare the level and distribution of peri-implant bone stresses associated with mandibular two-implant overdentures with different implant positions. Mathematical models of mandibles and overdentures were designed using finite element analysis software. Two intraosseous implants and ball attachment systems were placed in the interforaminal region. The overdenture, which was supported by the two implants, was designed to withstand bilateral and unilateral vertical masticatory loads (total 100 N). In all, eight types of models, which differed according to assigned implant positions, height of attachments, and angulation, were tested: MI (model with implants positioned in the lateral incisor sites), MC (implants in canine sites), MP (implants in premolar sites), MI-Hi (greater height of attachments), MC-M (canine implants placed with mesial inclination), MC-D (canine implants placed with distal inclination), MC-B (canine implants placed with buccal inclination), and MC-L (canine implants placed with lingual inclination). Peri-implant bone stress levels associated with overdentures retained by lateral incisor implants resulted in the lowest stress levels and the highest efficiency in distributing peri-implant stress. MI-Hi showed increased stress levels and decreased efficiency in stress distribution. As the implants were inclined, stress levels increased and the efficiency of stress distribution decreased. Among the inclined models, MC-B showed the lowest stress level and best efficiency in stress distribution. The lowest stress and the best stability of implants in mandibular two-implant overdentures were obtained when implants were inserted in lateral incisor areas with shorter attachments and were placed parallel to the long axes of the teeth.

  10. Comparison of marginal bone loss between internal- and external-connection dental implants in posterior areas without periodontal or peri-implant disease.

    Science.gov (United States)

    Kim, Dae-Hyun; Kim, Hyun Ju; Kim, Sungtae; Koo, Ki-Tae; Kim, Tae-Il; Seol, Yang-Jo; Lee, Yong-Moo; Ku, Young; Rhyu, In-Chul

    2018-04-01

    The purpose of this retrospective study with 4-12 years of follow-up was to compare the marginal bone loss (MBL) between external-connection (EC) and internal-connection (IC) dental implants in posterior areas without periodontal or peri-implant disease on the adjacent teeth or implants. Additional factors influencing MBL were also evaluated. This retrospective study was performed using dental records and radiographic data obtained from patients who had undergone dental implant treatment in the posterior area from March 2006 to March 2007. All the implants that were included had follow-up periods of more than 4 years after loading and satisfied the implant success criteria, without any peri-implant or periodontal disease on the adjacent implants or teeth. They were divided into 2 groups: EC and IC. Subgroup comparisons were conducted according to splinting and the use of cement in the restorations. A statistical analysis was performed using the Mann-Whitney U test for comparisons between 2 groups and the Kruskal-Wallis test for comparisons among more than 2 groups. A total of 355 implants in 170 patients (206 EC and 149 IC) fulfilled the inclusion criteria and were analyzed in this study. The mean MBL was 0.47 mm and 0.15 mm in the EC and IC implants, respectively, which was a statistically significant difference ( P <0.001). Comparisons according to splinting (MBL of single implants: 0.34 mm, MBL of splinted implants: 0.31 mm, P =0.676) and cement use (MBL of cemented implants: 0.27 mm, MBL of non-cemented implants: 0.35 mm, P =0.178) showed no statistically significant differences in MBL, regardless of the implant connection type. IC implants showed a more favorable bone response regarding MBL in posterior areas without peri-implantitis or periodontal disease.

  11. Effect of plasma-rich in platelet-derived growth factors on peri-implant bone healing: An experimental study in canines

    Science.gov (United States)

    Birang, Reza; Torabi, Alireza; Shahabooei, Mohammad; Rismanchian, Mansour

    2012-01-01

    Background: Tissue engineering principles can be exploited to enhance alveolar and peri-implant bone reconstruction by applying such biological factors as platelet-derived growth factors. The objective of the present study is to investigate the effect of autologous plasma-rich in growth factors (on the healing of peri-implant bone in canine mandible). Materials and Methods: In this prospective experimental animal study, two healthy canines of the Iranian mix breed were selected. Three months after removing their premolar teeth on both sides of the mandible, 12 implants of the Osteo Implant Corporationsystem, 5 mm in diameter and 10 mm in length, were selected to be implanted. Plasma rich in growth factors (PRGF) were applied on six implants while the other six were used as plain implants without the plasma. The implants were installed in osteotomy sites on both sides of the mandible to be removed after 4 weeks with the surrounding bones using a trephine bur. Mesio-distal sections and implant blocks, 50 μ in diameter containing the peri-implant bone, were prepared By basic fuchin toluidine-bluefor histological and histomorphometric evaluation by optical microscope. The data were analyzed using Mann-Whitney Test (PPRGF and control groups had no statistically significant differences (P=0.261, P=0.2) although the parameters showed higher measured values in the PRGF group. However, compared to the control, application of PRGF had significantly increased bone-to-implant contact (P=0.028) Conclusion: Based on the results, it may be concluded that application of PRGF on the surface of implant may enhance bone-to-implant contact. PMID:22363370

  12. Peri-Implant Diseases

    Science.gov (United States)

    ... Tomography (CBCT) American Academy of Periodontology Installs New President, Officers in Boston American Academy of Periodontology Announces ... May Increase Lung Cancer Risk CDC Estimate: New Mexico, Hawaii Have Highest U.S. Incidence of Advanced Gum ...

  13. Low-dose rhBMP2/7 heterodimer to reconstruct peri-implant bone defects: a micro-CT evaluation.

    Science.gov (United States)

    Wang, Jingxiao; Zheng, Yuanna; Zhao, Juan; Liu, Tie; Gao, Lixia; Gu, Zhiyuan; Wu, Gang

    2012-01-01

    To delineate the dynamic micro-architectures of bone induced by low-dose bone morphogenetic protein (BMP)-2/7 heterodimer in peri-implant bone defects compared to BMP2 and BMP7 homodimer. Peri-implant bone defects (8 mm in diameter, 4 mm in depth) were created surrounding SLA-treated titanium implants (3.1 mm in diameter, 10 mm in length) in minipig's calvaria. We administrated collagen sponges with adsorbed low-dose (30 ng/mm(3) ) BMP2/7 to treat the defects using BMP2, BMP7 or no BMP as controls.2, 3 and 6 weeks after implantation, we adopted micro-computer tomography to evaluate the micro-architectures of new bone using the following parameters: relative bone volume (BV/TV), trabecular number (Tb.N), trabecular thickness (Tb.Th), trabecular separation (Tb.Sp), connectivity density, and structure mode index (SMI). Bone implant contact (BIC) was also revealed histologically. Consistent with 2 and 3 weeks, after 6 weeks post-operation, BMP2/7 resulted in significantly higher BV/TV (63.033 ± 2.055%) and significantly lower SMI (-4.405 ± 0.500) than BMP2 (BV/TV: 43.133 ± 2.001%; SMI: -0.086 ± 0.041) and BMP7 (BV/TV: 41.467 ± 1.850%; SMI: -0.044 ± 0.016) respectively. Significant differences were also found in Tb.N, Tb.Th and Tb.Sp at all time points. At 2 weeks, BMP2/7 resulted in significantly higher BIC than the controls. Low-dose BMP2/7 heterodimer facilitated more rapid bone regeneration in better quality in peri-implant bone defects than BMP2 and BMP7 homodimers. © 2011 John Wiley & Sons A/S.

  14. Clinical follow-up of unilateral, fixed dental prosthesis on maxillary implants.

    Science.gov (United States)

    Wahlström, Monica; Sagulin, Gun-Britt; Jansson, Leif E

    2010-11-01

    The aims of the present study were to evaluate (1) the success rate of unilateral maxillary fixed dental prosthesis (FDPs) on implants in patients at a periodontal clinic referred for periodontal treatment, (2) the prevalence of varying mechanical and biological complications and (3) effects of potential risk factors on the success rate. Fifty consecutive patients were invited to participate in a follow-up. The patients had received FDPs on implants between November 2000 and December 2003 after treatment to achieve optimal peridontal health, and the FDPs had been in function for at least 3 years. A questionnaire was sent to the patients before the follow-up examination. Forty-six patients with 116 implants were examined. The follow-up comprised clinical and radiographic examinations and evaluations of treatment outcome. Before implant treatment, 13% of the teeth were extracted; of these, 80% were extracted due to periodontal disease. No implants had been lost before implant loading. One implant in one patient fractured after 3 years of functional loading and three implants in another patient after 6.5 years. The most frequent mechanical complications were veneer fractures and loose bridge screws. Patients with peri-implant mucositis had significantly more bleeding on probing around teeth and implants. Patients with peri-implantitis at the follow-up had more deep periodontal pockets around their remaining teeth compared with individuals without peri-implantitis, but these differences were not significant. Smokers had significantly fewer teeth, more periodontal pockets ≥ 4mm and a tendency towards greater marginal bone loss at the follow-up, compared with non-smokers. In the short term, overloading and bruxism seem more hazardous for implant treatment, compared with a history of periodontitis.

  15. 10-year survival rate and the incidence of peri-implant disease of 374 titanium dental implants with a SLA surface: a prospective cohort study in 177 fully and partially edentulous patients

    NARCIS (Netherlands)

    van Velzen, F.J.J.; Ofec, R.; Schulten, E.A.J.M.; ten Bruggenkate, C.M.

    2015-01-01

    Purpose This prospective cohort study evaluates the 10-year survival and incidence of peri-implant disease at implant and patient level of sandblasted, large grid, and acid-etched titanium dental implants (Straumann, soft tissue level, SLA surface) in fully and partially edentulous patients.

  16. Peri-Implant Endosseous Healing Properties of Dual Acid-Etched Mini-Implants with a Nanometer-Sized Deposition of CaP : A Histological and Histomorphometric Human Study

    NARCIS (Netherlands)

    Telleman, Gerdien; Albrektsson, Tomas; Hoffman, Maria; Johansson, Carina B.; Vissink, Arjan; Meijer, Henny J. A.; Raghoebar, Gerry M.

    2010-01-01

    Purpose: The aim of this histological and histomorphometric study was to compare the early peri-implant endosseous healing properties of a dual acid-etched (DAE) surface (Osseotite (R), Implant Innovations Inc., Palm Beach Gardens, FL, USA) with a DAE surface modified with nanometer-sized calcium

  17. Characterization and comparative analyses of transcriptomes for in vivo and in vitro produced peri-implantation conceptuses and endometria from sheep.

    Science.gov (United States)

    Wei, Xia; Xiaoling, Zhang; Kai, Miao; Rui, Wang; Jing, Xu; Min, Guo; Zhonghong, Wu; Jianhui, Tian; Xinyu, Zhang; Lei, An

    2016-06-17

    An increasing number of reports indicate that in vitro fertilization (IVF) is highly associated with long‑term side effects on embryonic and postnatal development, and can sometimes result in embryonic implant failure. While high‑throughput gene expression analysis has been used to explore the mechanisms underlying IVF-induced side effects on embryonic development, little is known about the effects of IVF on conceptus-endometrial interactions during the peri-implantation period. Using sheep as a model, we performed a comparative transcriptome analysis between in vivo (IVO; in vivo fertilized followed by further development in the uterus) and in vitro produced (IVP; IVF with further culture in the incubator) conceptuses, and the caruncular and intercaruncular areas of the ovine endometrium. We identified several genes that were differentially expressed between the IVO and IVP groups on day 17, when adhesion between the trophoblast and the uterine luminal epithelium begins in sheep. By performing Gene Ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, we found that, in the conceptus, differentially expressed genes (DEGs) were associated mainly with functions relating to cell binding and the cell cycle. In the endometrial caruncular area, DEGs were involved in cell adhesion/migration and apoptosis, and in the intercaruncular area, they were significantly enriched in pathways of signal transduction and transport. Thus, these DEGs are potential candidates for further exploring the mechanism underlying IVF/IVP-induced embryonic implant failure that occurs due to a loss of interaction between the conceptus and endometrium during the peri-implantation period.

  18. Gingival Mesenchymal Stem Cell (GMSC) Delivery System Based on RGD-Coupled Alginate Hydrogel with Antimicrobial Properties: A Novel Treatment Modality for Peri-Implantitis.

    Science.gov (United States)

    Diniz, Ivana M A; Chen, Chider; Ansari, Sahar; Zadeh, Homayoun H; Moshaverinia, Maryam; Chee, Daniel; Marques, Márcia M; Shi, Songtao; Moshaverinia, Alireza

    2016-02-01

    Peri-implantitis is one of the most common inflammatory complications in dental implantology. Similar to periodontitis, in peri-implantitis, destructive inflammatory changes take place in the tissues surrounding a dental implant. Bacterial flora at the failing implant sites resemble the pathogens in periodontal disease and consist of Gram-negative anaerobic bacteria including Aggregatibacter actinomycetemcomitans (Aa). Here we demonstrate the effectiveness of a silver lactate (SL)-containing RGD-coupled alginate hydrogel scaffold as a promising stem cell delivery vehicle with antimicrobial properties. Gingival mesenchymal stem cells (GMSCs) or human bone marrow mesenchymal stem cells (hBMMSCs) were encapsulated in SL-loaded alginate hydrogel microspheres. Stem cell viability, proliferation, and osteo-differentiation capacity were analyzed. Our results showed that SL exhibited antimicrobial properties against Aa in a dose-dependent manner, with 0.50 mg/ml showing the greatest antimicrobial properties while still maintaining cell viability. At this concentration, SL-containing alginate hydrogel was able to inhibit Aa growth on the surface of Ti discs and significantly reduce the bacterial load in Aa suspensions. Silver ions were effectively released from the SL-loaded alginate microspheres for up to 2 weeks. Osteogenic differentiation of GMSCs and hBMMSCs encapsulated in the SL-loaded alginate microspheres were confirmed by the intense mineral matrix deposition and high expression of osteogenesis-related genes. Taken together, our findings confirm that GMSCs encapsulated in RGD-modified alginate hydrogel containing SL show promise for bone tissue engineering with antimicrobial properties against Aa bacteria in vitro. © 2015 by the American College of Prosthodontists.

  19. Embryonic mortality and intrauterine growth retardation (IUGR) associated with placental alterations in pregnant rats treated with methyl methanesulfonate (MMS) at the peri-implantation stage.

    Science.gov (United States)

    Yokoi, Ryohei; Hayashi, Morimichi; Tamura, Toru; Kobayashi, Kazuo; Kuroda, Junji; Kusama, Hiroshi; Kagami, Hiroshi; Ono, Tamao

    2008-12-01

    Embryonic mortality and intrauterine growth retardation (IUGR) are induced by exposure of rodents to xenobiotic agents during the pregastrulation period of development. We examined the time course of the effects of methyl methanesulfonate (MMS), an alkylating agent, on conceptus development in order to clarify the relative roles of the embryo and the placenta in their induction. Pregnant rats were treated orally with a single dose of MMS (200 mg/kg) in the morning of gestation day (GD) 6 (peri-implantation stage). Embryonic mortality was increased on GD12 and thereafter by MMS treatment, with newly dead embryos showing placental hypoplasia at GD12. Embryo or fetal weight was also smaller for MMS-treated dams than for control dams from GD14 to GD20. The labyrinth zone and junctional zone (JZ) of the placenta were thinner in MMS-treated rats from GD12 to GD17 and from GD12 to GD20 (except for GD17), respectively. Furthermore, MMS-treated dams showed a smaller number of glycogen cells in the JZ on GD14. In contrast, the placental glycogen concentration was higher and the expression of glucose transporter 1 in the JZ remained at GD20. These results indicate that exposure of pregnant rats to MMS at the peri-implantation stage of embryogenesis affects placental development and growth. The placental impairment induced by MMS was likely responsible for the embryonic death observed 6 days after exposure of dams to this agent as well as for the IUGR of surviving embryos or fetuses throughout the gestation period.

  20. Effect of high ovarian response on the expression of endocrine gland-derived vascular endothelial growth factor (EG-VEGF) in peri-implantation endometrium in IVF women.

    Science.gov (United States)

    Xu, Li-Zhen; Gao, Min-Zhi; Yao, Li-Hua; Liang, A-Juan; Zhao, Xiao-Ming; Sun, Zhao-Gui

    2015-01-01

    To investigate the effect of ovarian stimulation on the expression of EG-VEGF mRNA and protein in peri-implantation endometrium in women undergoing IVF and its relation with endometrial receptivity (ER). Prospective laboratory study. University hospital. Eighteen women in stimulated cycles (SC) as study subjects and 18 women in natural cycles (NC) as controls. Women in SC group were classified with two subgroups, high ovarian response (SC1, n=9) with peak serum E2>5,000 pg/mL and moderate ovarian response (SC2, n=9) with peak serum E2 1,000-5,000 pg/mL. Endometrial biopsies were collected 6 days after ovulation in NC or after oocyte retrieval in SC. Endometrium histological dating was observed with HE staining. EG-VEGF mRNA expression levels determined by real-time polymerase chain reaction analysis, and protein levels by immunohistochemistry. All endometrial samples were in the secretory phase. The endometrial development in SC1 was 1 to 2 days advanced to NC, and with dyssynchrony between glandular and stromal tissue. Immunohistochemistry analysis showed that EG-VEGF protein was predominantly expressed in the glandular epithelial cells and endothelial cells of vessels, and also presented in the stroma. The image analysis confirmed that both the gland and stroma of endometrium in SC1 had a significantly lower EG-VEGF protein expression than that in SC2 and NC endometrium. Moreover, EG-VEGF mRNA levels were significantly lower in SC1 than in NC. Both EG-VEGF protein and mRNA levels had no significant difference between SC2 and NC. Decreased expression of EG-VEGF in the peri-implantation is associated with high ovarian response, which may account for the impaired ER and lower implantation rate in IVF cycles.

  1. Assessment and Evaluation of Quality of Life (OHRQoL) of Patients with Dental Implants Using the Oral Health Impact Profile (OHIP-14) - A Clinical Study.

    Science.gov (United States)

    Alzarea, Bader K

    2016-04-01

    Peri-implant tissue health is a requisite for success of dental implant therapy. Plaque accumulation leads to initiation of gingivitis around natural teeth and peri-implantitis around dental implants. Peri-implantitis around dental implants may result in implant placement failure. For obtaining long-term success, timely assessment of dental implant site is mandatory. To assess and evaluate Quality of Life (OHRQoL) of individuals with dental implants using the Oral Health Impact Profile (OHIP-14). Total 92 patients were evaluated for assessment of the health of peri-implant tissues by recording, Plaque Index (PI), Probing Pocket Depth (PD), Bleeding On Probing (BOP) and Probing Attachment Level (PAL) as compared to contra-lateral natural teeth (control). In the same patients Quality of Life Assessment was done by utilizing Oral Health Impact Profile Index (OHIP-14). The mean plaque index around natural teeth was more compared to implants and it was statistically significant. Other three dimensions mean bleeding on probing; mean probing attachment level and mean pocket depth around both natural teeth and implant surfaces was found to be not statistically significant. OHIP-14 revealed that patients with dental implants were satisfied with their Oral Health-Related Quality of Life (OHRQoL). Similar inflammatory conditions are present around both natural teeth and implant prostheses as suggested by results of mean plaque index, mean bleeding on probing, mean pocket depth and mean probing attachment level, hence reinforcing the periodontal health maintenance both prior to and after incorporation of dental implants. Influence of implant prostheses on patient's oral health related quality of life (as depicted by OHIP-14) and patients' perceptions and expectations may guide the clinician in providing the best implant services.

  2. Health Clinic Cost Reports

    Data.gov (United States)

    U.S. Department of Health & Human Services — Healthcare Cost Report Information System (HCRIS) Dataset - Independent Rural Health Clinic and Freestanding Federally Qualified Health Center (HCLINIC).This data...

  3. Peri-implant soft tissue and marginal bone adaptation on implant with non-matching healing abutments: micro-CT analysis.

    Science.gov (United States)

    Finelle, Gary; Papadimitriou, Dimitrios E V; Souza, André B; Katebi, Negin; Gallucci, German O; Araújo, Mauricio G

    2015-04-01

    To assess (i) the outcome of changing the horizontal-offset dimension on the peri-implant soft tissues and the crestal bone and (ii) the effect of different healing abutments (flared vs. straight) on the marginal peri-implant soft tissues and crestal bone. Two-piece dental implants diameters of 3.5 and 4.5 mm were placed at least 1 mm subcrestal in five beagle dogs. Three different investigational groups: (i) 3.5-mm-diameter implant with narrow healing abutment (3.5N), (ii) 4.5-mm-diameter implant with narrow healing abutment (4.5N), and (iii) 3.5-mm-diameter implant with wide healing abutment (3.5W), were assessed. After 4 months of healing, the vertical distance from the marginal crestal bone (MB) to the implant shoulder (IS); the vertical distance from the IS to the first bone-to-implant contact; and the horizontal distance of bone ingrowth on the implant platform were measured with a high-resolution micro-CT (Xradia MicroXCT-200 system). Implants with a narrow healing caps showed an interproximal MB located between 0 and 1 mm above the implant shoulder, while the 3.5W group exhibits a mean value -0.50 mm. As all implants in group 3.5N presented a fBIC located at the level of the IS. For the 4.5N group, the mean fBIC-IS distance was -0.52 mm apically to the IS. For the 3.5WC group, the mean fBIC-IS distance was -1.42 mm. Horizontal bone apposition was only observed for the 3.5N group and the 4.5N group. The dimension of the horizontal offset would play a minimal role in reducing bone remodeling, whereas the configuration of the transmucosal component would directly influence marginal bone remodeling. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  4. Natural Resistance Associated Macrophage Protein 1 Gene Polymorphism is Associated with Chronic Periodontitis Not Peri-Implantitis in an Iranian Population: A Cross Sectional Study

    Directory of Open Access Journals (Sweden)

    Mahdi Kadkhodazadeh

    2016-05-01

    Full Text Available In inflammatory diseases such as peri-implantitis (PI and chronic periodontitis (CP both adaptive and innate immunity play a part. Natural resistance associated macrophage protein 1 (NRAMP1 has considerable effects on macrophage function (phagocytosis and host innate immune response against infections. The present study was to investigate the relationship of NRAMP1 gene polymorphisms with PI and CP in an Iranian population. In this cross sectional study 79 patients with CP, 38 patients with PI and 84 healthy controls presenting to the Periodontology Department of Shahid Beheshti University of Medical Sciences were enrolled. DNA was extracted from fresh blood samples of arm vein of participants and transferred to KBiosience institute (United Kingdom for genotyping. X2 and Fisher’s exact tests were used by SPSS software v.19 for statistical analyzes. Significant differences were detected in the distribution of genotypes between control and CP groups both for rs17235409 and rs2276631 polymorphisms (P:0.044 and P:0.028 respectively. Distribution of genotypes differed insignificantly in comparison of PI and control groups for rs2276631 (P:0.623 and either rs17235409 (P:1 polymorphisms. Based on our results, we conclude that presence of G allele in both rs2276631 and rs17235409 location may be a protective factor against CP. More studies with a larger sample size in different populations are required for confirming NRAMP1 as a genetic determinant in periodontal disorders.

  5. PINCH1 regulates cell-matrix and cell-cell adhesions, cell polarity and cell survival during the peri-implantation stage

    DEFF Research Database (Denmark)

    Li, Shaohua; Bordoy, Randi; Stanchi, Fabio

    2005-01-01

    PINCH1 is composed of 5 LIM domains, binds integrin-linked kinase (ILK) and locates to integrin-mediated adhesion sites. In order to investigate PINCH1 function we generated mice and embryonic stem (ES) cell-derived embryoid bodies (EBs) lacking the PINCH1 gene. Similar to mice lacking beta1...... integrin or Ilk, loss of PINCH1 arrested development at the peri-implantation stage. In contrast to beta1 integrin or Ilk mutants, however, disruption of the PINCH1 gene produced implantation chambers with visible cell clumps even at embryonic day 9.5. In order to define the phenotype leading to the peri...... not observed in beta1 integrin- or ILK-deficient mice or EBs, included abnormal cell-cell adhesion of endoderm and epiblast as well as the presence of apoptotic cells in the endodermal cell layer. Although ILK and PINCH1 were shown to be involved in the phosphorylation of serine-473 of PKB/Akt, immunostaining...

  6. The effects of healing abutments of different size and anatomic shape placed immediately in extraction sockets on peri-implant hard and soft tissues. A pilot study in foxhound dogs.

    Science.gov (United States)

    López-López, Patricia J; Mareque-Bueno, Javier; Boquete-Castro, Ana; Aguilar-Salvatierra Raya, Antonio; Martínez-González, José M; Calvo-Guirado, José L

    2016-01-01

    The aim of this animal study was to compare the effects of narrow, concave-straight and wide anatomic healing abutments on changes to soft tissues and crestal bone levels around implants immediately placed into extraction sockets in foxhound dogs. Forty-eight titanium implants (Bredent Medical GMBH, Germany) of the same dimensions were placed in six foxhound dogs. They were divided into two groups (n = 24): test (implants with anatomic abutment) and control (implants with concave-straight abutment). The implants were inserted randomly in the post extraction sockets of P2 , P3 , P4, and M1 bilaterally in six dogs. After eight and twelve weeks, the animals were sacrificed and samples extracted containing the implants and the surrounding soft and hard tissues. Soft tissue and crestal bone loss (CBL) were evaluated by histology and histomorphometry. All implants were clinically and histologically osseointegrated. Healing patterns were examined microscopically at eight and twelve weeks. After eight and twelve weeks, for hard tissues, the distance from the implant shoulder to the first bone-to-implant contact (IS-C) was higher for control group in the lingual aspect with statistical significance (P < 0.05). For soft tissues (STL), the distance from the top of the peri-implant mucosa to the apical portion of the junction epithelium (PM-Je) was significantly less on the lingual aspect in the test group (with wider abutment) at eight and twelve weeks (P < 0.05). The distance from the top of the apical portion of the junction epithelium to the first bone-to-implant contact (Je-C) was significantly higher in the test group (wider abutment) in the lingual aspect at eight and twelve weeks (P < 0.05). There was no connective tissue contact with any abutment surface. Within the limitations of this animal study, anatomic healing abutments protect soft and hard tissues and reduce crestal bone resorption compared with concave-straight healing abutments. © 2014 John Wiley

  7. Investigation of Peri-Implant Bone Healing Using Autologous Plasma Rich in Growth Factors in the Canine Mandible After 12 Weeks: A Pilot Study

    Science.gov (United States)

    Birang, Reza; Tavakoli, Mohammad; Shahabouei, Mohammad; Torabi, Alireza; Dargahi, Ali; Soolari, Ahmad

    2011-01-01

    Introduction: Faster reconstruction of patients’ masticatory systems is the aim of modern dentistry. A number of studies have indicated that application of growth factors to the surface of a dental implant leads to accelerated and enhanced osseointegration. The objective of the present study was to investigate the effect of plasma rich in growth factors on peri-implant bone healing. Materials and Methods: For the purpose of this study, two healthy, mixed-breed canines were selected, and the premolars were extracted from both sides of the mandible. Three months after premolar removal, 12 implants, each 5 mm in diameter and 10 mm in length, were placed in osteotomy sites on both sides of the mandible. Prior to placement, plasma rich in growth factors was applied to the surfaces of six implants, while the other six were used without plasma rich in growth factors. The implants were removed after 12 weeks along with the bone surrounding the sites using a trephine bur. One mesiodistal section containing the surrounding bone from each implant block, 50 µm in diameter, was prepared for histologic and histomorphometric investigation with an optical microscope. Results: The sites with implants treated with plasma rich in growth factors showed more bone-to-implant contact compared to control sites. Also, higher values for bone trabecular thickness and bone maturity were recorded for the PRGF-treated sites than for the control sites. Conclusion: Application of plasma rich in growth factors to the surface of an implant may enhance the bone healing process as well as bone-to-implant contact, thereby helping to achieve faster osseointegration. PMID:22145011

  8. Use of micro-CT-based finite element analysis to accurately quantify peri-implant bone strains: a validation in rat tibiae.

    Science.gov (United States)

    Torcasio, Antonia; Zhang, Xiaolei; Van Oosterwyck, Hans; Duyck, Joke; van Lenthe, G Harry

    2012-05-01

    Although research has been addressed at investigating the effect of specific loading regimes on bone response around the implant, a precise quantitative understanding of the local mechanical response close to the implant site is still lacking. This study was aimed at validating micro-CT-based finite element (μFE) models to assess tissue strains after implant placement in a rat tibia. Small implants were inserted at the medio-proximal site of 8 rat tibiae. The limbs were subjected to axial compression loading; strain close to the implant was measured by means of strain gauges. Specimen-specific μFE models were created and analyzed. For each specimen, 4 different models were created corresponding to different representations of the bone-implant interface: bone and implant were assumed fully osseointegrated (A); a low stiffness interface zone was assumed with thickness of 40 μm (B), 80 μm (C), and 160 μm (D). In all cases, measured and computational strains correlated highly (R (2) = 0.95, 0.92, 0.93, and 0.95 in A, B, C, and D, respectively). The averaged calculated strains were 1.69, 1.34, and 1.15 times higher than the measured strains for A, B, and C, respectively, and lower than the experimental strains for D (factor = 0.91). In conclusion, we demonstrated that specimen-specific FE analyses provide accurate estimates of peri-implant bone strains in the rat tibia loading model. Further investigations of the bone-implant interface are needed to quantify implant osseointegration.

  9. Implant decontamination during surgical peri-implantitis treatment : a randomized, double-blind, placebo-controlled trial

    NARCIS (Netherlands)

    de Waal, Yvonne C. M.; Raghoebar, Gerry M.; Huddleston Slater, James J. R.; Meijer, Henny J. A.; Winkel, Edwin G.; van Winkelhoff, Arie Jan

    Aim The objective of this randomized, double-blind, placebo-controlled trial was to study the effect of implant surface decontamination with chlorhexidine (CHX)/cetylpyridinium chloride (CPC) on microbiological and clinical parameters. Material & Methods Thirty patients (79 implants) with

  10. Implant decontamination during surgical peri-implantitis treatment : a randomized, double-blind, placebo-controlled trial

    NARCIS (Netherlands)

    de Waal, Yvonne C.M.; Raghoebar, Gerry M; Huddleston Slater, James J R; Meijer, Hendrikus; Winkel, Edwin G; van Winkelhoff, Arie Jan

    AIM: The objective of this randomized, double-blind, placebo-controlled trial was to study the effect of implant surface decontamination with chlorhexidine (CHX)/cetylpyridinium chloride (CPC) on microbiological and clinical parameters. MATERIAL & METHODS: Thirty patients (79 implants) with

  11. Implant decontamination with 2% chlorhexidine during surgical peri-implantitis treatment : a randomized, double-blind, controlled trial

    NARCIS (Netherlands)

    de Waal, Y. C. M.; Raghoebar, G. M.; Meijer, H. J. A.; Winkel, E. G.; van Winkelhoff, A. J.

    ObjectiveThe objective of this randomized, double-blind, controlled trial was to evaluate the clinical, radiographic, and microbiological effects of implant surface decontamination with a 2% chlorhexidine (CHX) solution in comparison with a 0.12% chlorhexidine+0.05% cetylpyridinium chloride (CPC)

  12. Impact of platform switching on marginal peri-implant bone-level changes. A systematic review and meta-analysis

    Science.gov (United States)

    Strietzel, Frank Peter; Neumann, Konrad; Hertel, Moritz

    2015-01-01

    Objective To address the focused question, is there an impact of platform switching (PS) on marginal bone level (MBL) changes around endosseous implants compared to implants with platform matching (PM) implant-abutment configurations? Material and methods A systematic literature search was conducted using electronic databases PubMed, Web of Science, Journals@Ovid Full Text and Embase, manual search for human randomized clinical trials (RCTs) and prospective clinical controlled cohort studies (PCCS) reporting on MBL changes at implants with PS-, compared with PM-implant-abutment connections, published between 2005 and June 2013. Results Twenty-two publications were eligible for the systematic review. The qualitative analysis of 15 RCTs and seven PCCS revealed more studies (13 RCTs and three PCCS) showing a significantly less mean marginal bone loss around implants with PS- compared to PM-implant-abutment connections, indicating a clear tendency favoring the PS technique. A meta-analysis including 13 RCTs revealed a significantly less mean MBL change (0.49 mm [CI95% 0.38; 0.60]) at PS implants, compared with PM implants (1.01 mm [CI95% 0.62; 1.40] (P marginal bone loss compared with PM technique. Due to heterogeneity of the included studies, their results require cautious interpretation. PMID:24438506

  13. Finite element analysis of the stress distributions in peri-implant bone in modified and standard-threaded dental implants

    Directory of Open Access Journals (Sweden)

    Serkan Dundar

    2016-01-01

    Full Text Available The aim of this study was to examine the stress distributions with three different loads in two different geometric and threaded types of dental implants by finite element analysis. For this purpose, two different implant models, Nobel Replace and Nobel Active (Nobel Biocare, Zurich, Switzerland, which are currently used in clinical cases, were constructed by using ANSYS Workbench 12.1. The stress distributions on components of the implant system under three different static loadings were analysed for the two models. The maximum stress values that occurred in all components were observed in FIII (300 N. The maximum stress values occurred in FIII (300 N when the Nobel Replace implant is used, whereas the lowest ones, in the case of FI (150 N loading in the Nobel Active implant. In all models, the maximum tensions were observed to be in the neck region of the implants. Increasing the connection between the implant and the bone surface may allow more uniform distribution of the forces of the dental implant and may protect the bone around the implant. Thus, the implant could remain in the mouth for longer periods. Variable-thread tapered implants can increase the implant and bone contact.

  14. Peri-implant stress correlates with bone and cement morphology: Micro-FE modeling of implanted cadaveric glenoids.

    Science.gov (United States)

    Wee, Hwabok; Armstrong, April D; Flint, Wesley W; Kunselman, Allen R; Lewis, Gregory S

    2015-11-01

    Aseptic loosening of cemented joint replacements is a complex biological and mechanical process, and remains a clinical concern especially in patients with poor bone quality. Utilizing high resolution finite element analysis of a series of implanted cadaver glenoids, the objective of this study was to quantify relationships between construct morphology and resulting mechanical stresses in cement and trabeculae. Eight glenoid cadavers were implanted with a cemented central peg implant. Specimens were imaged by micro-CT, and subject-specific finite element models were developed. Bone volume fraction, glenoid width, implant-cortex distance, cement volume, cement-cortex contact, and cement-bone interface area were measured. Axial loading was applied to the implant of each model and stress distributions were characterized. Correlation analysis was completed across all specimens for pairs of morphological and mechanical variables. The amount of trabecular bone with high stress was strongly negatively correlated with both cement volume and contact between the cement and cortex (r = -0.85 and -0.84, p implant-cortex distance. Contact between the cement and underlying cortex may dramatically reduce trabecular bone stresses surrounding the cement, and this contact depends on bone shape, cement amount, and implant positioning. © 2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.

  15. Influence of collar design on peri-implant tissue healing around immediate implants: A pilot study in Foxhound dogs.

    Science.gov (United States)

    Calvo-Guirado, José Luis; López-López, Patricia Jara; Maté Sánchez de Val, José Eduardo; Mareque-Bueno, Javier; Delgado-Ruiz, Rafael Arcesio; Romanos, Georgios E

    2015-07-01

    The study aims to assess the soft tissue level (STL) and crestal bone level (CBL), of titanium dental implants with different mixed collar abutments configurations. This study included 48 implants with the same dimensions. They were divided into two groups of 24 implants each one: implants with a polished collar of 2 mm plus a roughened area of 0.8 mm (CONTROL) and implants with a polished collar of 0.8 mm plus a micro-threated and roughened area of 2 mm (TEST). The implants were inserted randomly in the post-extraction sockets of P2, P3, P4, and M1 bilaterally in the lower jaw of six foxhound dogs. STL and CBL were evaluated after 8 and 12 weeks by histology and histometry. All implants were clinically and histologically osseointegrated. Healing patterns examined microscopically at 8 and 12 weeks for both groups yielded similar qualitative findings for the STL evaluation, without significant differences between groups (P > 0.05). CBL was significantly higher in the buccal side in comparison with the lingual side for both groups (P implant shoulder to the top of the bony crest) and IS-C (distance from the implant shoulder to the first bone-to-implant contact) values significantly higher for control group in comparison with test (P < 0.05). At 12 weeks, CBL showed increased values for both groups that were higher in controls group in comparison with test (P < 0.05). Bony crest resorption could not be avoided both at test and control sites. However, the neck conformation at the test sites reduced the buccal bone resorption. Soft tissue dimensions were similar both at the test and control sites. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  16. Peri-implant osseointegration after low-level laser therapy: micro-computed tomography and resonance frequency analysis in an animal model.

    Science.gov (United States)

    Mayer, Luciano; Gomes, Fernando Vacilotto; de Oliveira, Marília Gerhardt; de Moraes, João Feliz Duarte; Carlsson, Lennart

    2016-12-01

    The purpose of the present study is to evaluate the effects of low-level laser therapy on the osseointegration process by comparing resonance frequency analysis measurements performed at implant placement and after 30 days and micro-computed tomography images in irradiated vs nonirradiated rabbits. Fourteen male New Zealand rabbits were randomly divided into two groups of seven animals each, one control group (nonirradiated animals) and one experimental group that received low-level laser therapy (Thera Lase®, aluminum-gallium-arsenide laser diode, 10 J per spot, two spots per session, seven sessions, 830 nm, 50 mW, CW, Ø 0.0028 cm 2 ). The mandibular left incisor was surgically extracted in all animals, and one osseointegrated implant was placed immediately afterward (3.25ø × 11.5 mm; NanoTite, BIOMET 3i). Resonance frequency analysis was performed with the Osstell® device at implant placement and at 30 days (immediately before euthanasia). Micro-computed tomography analyses were then conducted using a high-resolution scanner (SkyScan 1172 X-ray Micro-CT) to evaluate the amount of newly formed bone around the implants. Irradiated animals showed significantly higher implant stability quotients at 30 days (64.286 ± 1.596; 95 % confidence interval (CI) 60.808-67.764) than controls (56.357 ± 1.596; 95 %CI 52.879-59.835) (P = .000). The percentage of newly formed bone around the implants was also significantly higher in irradiated animals (75.523 ± 8.510; 95 %CI 61.893-89.155) than in controls (55.012 ± 19.840; 95 %CI 41.380-68.643) (P = .027). Laser therapy, based on the irradiation protocol used in this study, was able to provide greater implant stability and increase the volume of peri-implant newly formed bone, indicating that laser irradiation effected an improvement in the osseointegration process.

  17. Rural health clinics infrastructure

    Energy Technology Data Exchange (ETDEWEB)

    Olson, K.

    1997-12-01

    The author discusses programs which were directed at the installation of photovoltaic power systems in rural health clinics. The objectives included: vaccine refrigeration; ice pack freezing; lighting; communications; medical appliances; sterilization; water purification; and income generation. The paper discusses two case histories, one in the Dominican Republic and one in Colombia. The author summarizes the results of the programs, both successes and failures, and offers an array of conclusions with regard to the implementation of future programs of this general nature.

  18. Short Dental Implants Retaining Two-Implant Mandibular Overdentures in Very Old, Dependent Patients: Radiologic and Clinical Observation Up to 5 Years.

    Science.gov (United States)

    Maniewicz, Sabrina; Buser, Ramona; Duvernay, Elena; Vazquez, Lydia; Loup, Angelica; Perneger, Thomas V; Schimmel, Martin; Müller, Frauke

    To describe the survival rate and peri-implant bone loss in very old patients dependent for their activities of daily living (ADL), treated with mandibular two-implant overdentures (IODs) in the context of a previously reported randomized controlled trial. A total of 19 patients received two interforaminal Straumann implants (Regular Neck, 4.1 mm diameter, 8 mm length) that were subsequently loaded with Locator attachments, transforming their preexisting inferior conventional denture into an IOD. The primary outcome measures were implant survival rate and radiographically assessed peri-implant bone loss. Secondary outcome measures included peri-implant probing depth and Plaque Index scores, as well as implant mobility. Nutritional state (body mass index and blood markers) and cognitive state (Mini-Mental State Examination) were also analyzed. The patient cohort comprised eight men and 11 women with a mean age of 85.7 ± 6.6 years. The implant survival rate up to 5 years was 94.7%, with one early and one late implant failure. The mean loss of peri-implant bone height was 0.17 mm per year (95% confidence interval: 0.09 to 0.24; P implant probing depth and Plaque Index scores were low and stable during the first 2 years, and thereafter increased continuously. Correlation analysis suggests that a reduced cognitive function and nutritional state are not a particular risk factor for accelerated peri-implant bone loss. The high implant survival and acceptable peri-implant health suggest that neither age nor dependency for the ADLs is a contraindication for the placement of implants. Nevertheless, close monitoring of the patients concerning a potential further functional decline precluding denture management and performing oral hygiene measures is advised.

  19. Basics of clinical diagnosis in implant dentistry

    Directory of Open Access Journals (Sweden)

    Manu Rathee

    2015-01-01

    Full Text Available Implant-based prosthetic rehabilitation requires an understanding of associated anatomical structures. The ultimate predictability of an implant site is determined by the existing anatomy as related to dentition and the associated hard and soft tissues. Meticulous clinical assessment helps in determining the suitability of the potential site for implant placement. The purpose of this article is to present the clinical assessment for dental implants' placement to modulate peri-implant tissue characteristics in individual clinical need.

  20. Clinical research in implant dentistry: study design, reporting and outcome measurements: consensus report of Working Group 2 of the VIII European Workshop on Periodontology.

    Science.gov (United States)

    Tonetti, Maurizio; Palmer, Richard

    2012-02-01

    The objective of this working group was to assess and make specific recommendations to improve the quality of reporting of clinical research in implant dentistry and discuss ways to reach a consensus on choice of outcomes. Discussions were informed by three systematic reviews on quality of reporting of observational studies (case series, case-control and cohort) and experimental research (randomized clinical trials). An additional systematic review provided information on choice of outcomes and analytical methods. In addition, an open survey among all workshop participants was utilized to capture a consensus view on the limits of currently used survival and success-based outcomes as well as to identify domains that need to be captured by future outcome systems. The Workshop attempted to clarify the characteristics and the value in dental implant research of different study designs. In most areas, measurable quality improvements over time were identified. The Workshop recognized important aspects that require continued attention by clinical researchers, funding agencies and peer reviewers to decrease potential bias. With regard to choice of outcomes, the limitations of currently used systems were recognized. Three broad outcome domains that need to be captured by future research were identified: (i) patient reported outcome measures, (ii) peri-implant tissue health and (iii) performance of implant supported restorations. Peri-implant tissue health can be measured by marginal bone level changes and soft tissue inflammation and can be incorporated in time to event analyses. The Workshop recommended that collaboration between clinicians and epidemiologists/clinical trials specialists should be encouraged. Aspects of design aimed at limitation of potential bias should receive attention by clinical researchers, funding agencies and journal editors. Adherence to appropriate reporting guidelines such as STROBE and CONSORT are necessary standards. Research on outcome

  1. Histology of peri-implant bone in a failed implant retrieved from an area of osteonecrosis of the jaw in a patient suffering from multiple myeloma and treated with intravenous bisphosphonates

    Directory of Open Access Journals (Sweden)

    Marco Degidi

    2012-03-01

    Full Text Available Background: Osteonecrosis of the jaw (ONJ has been reported in the past few years in patients undergoing treatment with bisphosphonates (BP. Few published histological studies of ONJ can be found in the literature and no study has been reported on the peri-implant bone around a dental implant retrieved from an area of ONJ. The aim of the present case was to report the histology of the peri-implant bone around an implant retrieved from an area of ONJ. Materials and methods: Multiple myeloma was diagnosed to a 72-year-old male. The patient underwent treatment with intravenous pamidronate for 2 years and with intravenous zoledronate for additional 3 years. Five years after the diagnosis, 7 immediately loaded dental implants were inserted in the mandible. A preoperative panoramic radiography did show no pre-existing bone lesions. No healing of the post-extraction sockets of the right third molar and of the left second molar was observed. Three years after the implant insertion a breakdown of the oral mucosa covering the implants was observed. The most distal implant was retrieved with a trephine bur, due to mobility. Discussion: The histological findings showed some areas with osseointegration in patients undergoing BP treatment for malignant disease. Conclusion: There is certainly a temporal association between BP use and development of ONJ, but a correlation does not necessarily mean causation. Moreover, generalisations about this complex relationship cannot be made on the basis of a single case report. In patients undergoing intravenous treatment, clinicians must be aware of the increased risk of implant failure and, probably, implant insertion should be avoided at all, until more conclusive data are available.

  2. Long-term evaluation of hollow screw and hollow cylinder dental implants : Clinical and radiographic results after 10 years

    NARCIS (Netherlands)

    Telleman, Gerdien; Meijer, Henny J. A.; Raghoebar, Gerry M.

    Background: In 1988, an implant manufacturer offered a new dental implant system, with a wide choice of hollow cylinder (HC) and hollow screw (HS) implants. The purpose of this retrospective study of HS and HC implants was to evaluate clinical and radiographic parameters of peri-implant tissue and

  3. Influence of Age on Clinical Performance of Mandibular Two-Implant Overdentures : A 10-Year Prospective Comparative Study

    NARCIS (Netherlands)

    Hoeksema, Arie R.; Visser, Anita; Raghoebar, Gerry M.; Vissink, Arjan; Meijer, Henny J. A.

    Purpose: The aim of this prospective comparative study was to assess whether age has influence on peri-implant health in patients treated with mandibular two-implant overdentures during a 10-year evaluation period. Materials and Methods: A prospective study was carried out with two groups of

  4. Clinic Health Awareness Program Subsystem -

    Data.gov (United States)

    Department of Transportation — Clinic Health Awareness Program Subystem (CHAPS) is a comprehensive system for recording, reporting, and analyzing a patient’s medical information and managing an...

  5. Satisfaction and Clinical Outcomes Among Patients with Immediately Loaded Mandibular Overdentures Supported by One or Two Dental Implants: Results of a 5-Year Prospective Randomized Clinical Trial.

    Science.gov (United States)

    Kronstrom, Mats; Davis, Ben; Loney, Robert; Gerrow, Jack; Hollender, Lars

    The purpose of this study was to evaluate patient satisfaction and clinical outcomes among subjects with mandibular overdentures supported by one or two immediately placed dental implants 5 years after loading. Thirty-six subjects (16 men and 20 women) received one or two dental implants in the anterior mandible, and all implants were loaded the day of surgery. Subjects were scheduled for follow-up 3-, 6-, and 12 months after implant placement and thereafter annually for 4 more years. Patient satisfaction scores were measured with the Oral Health Impact Profile-EDENT (OHIPEDENT) questionnaire. Seventeen subjects (7 male and 10 female) with a mean age of 59.4 years (range, 44 to 74 years) were available for the 5-year follow-up examination. Nine subjects with 10 failing implants were excluded during the first year and nine subjects were lost to follow-up. No implants failed between the 12- and 60-month follow-up examinations, and the need for denture maintenance was low. Mean peri-implant bone change was 0.92 mm, and the Spearman test failed to show correlation between the insertion torque value and implant stability quotient. Patient satisfaction scores increased significantly when compared with baseline values and continued to be high for both groups, with no significant differences. Ten implants in nine subjects failed early, but no failures were observed after the 12-month examination. No significant differences were found between subjects in the two groups with respect to implant survival rates and peri-implant bone loss, and patient satisfaction scores continued to be high. Although patient satisfaction and implant success were high during the 12- to 60-month period, the results should be interpreted with caution because of the high number of failing implants and patients lost to follow-up. More research is needed to study outcomes of treatment with immediately loaded mandibular implant overdentures.

  6. Impact of heavy smoking on the clinical, microbiological and immunological parameters of patients with dental implants: a prospective cross-sectional study.

    Science.gov (United States)

    Ata-Ali, Javier; Flichy-Fernández, Antonio Juan; Alegre-Domingo, Teresa; Ata-Ali, Fadi; Peñarrocha-Diago, Miguel

    2016-11-01

    The aim of the present study was to investigate how heavy smoking influences the clinical, microbiological, and host-response characteristics in peri-implant sulcus fluid of patients with healthy dental implants. A total of 29 individuals with 74 dental implants were included in the present study; 20 implants were in heavy smokers and 54 were in non-smokers. The modified gingival index, modified plaque index, and probing pocket depth were evaluated. Periodontopathogenic bacteria Tannerella forsythia, Treponema denticola, and Porphyromonas gingivalis were evaluated, together with the total bacterial load. Peri-implant sulcus fluid samples were analyzed for the quantification of interleukin-8, interleukin-1β, interleukin-6, interleukin-10, and tumor necrosis factor-α. No significant differences in the clinical parameters evaluated were found between the groups, although smokers had poorer peri-implant parameters. Among the smokers, subgingival microbiota was composed of a greater number of periodontal pathogens; these differences were not statistically significant. Smokers showed a greater expression of interleukin-1β, interleukin-6, interleukin-10, and tumor necrosis factor-α, but interleukin-8 was slightly higher among non-smokers, but not significantly. Although smokers presented deeper probing depths, bleeding on probing, and peri-implant microbiota composed of a greater number of periodontal pathogens than in non-smoking patients, these data did not show significant differences. In the present study, and in relation to the samples analyzed, smoking alone did not influence the immunological and microbiological parameters in dental implants with healthy peri-implant tissues. Further studies with larger samples are required to better evaluate the influence of smoking on dental implants. © 2015 Wiley Publishing Asia Pty Ltd.

  7. Synergistic interactions of blood-borne immune cells, fibroblasts and extracellular matrix drive repair in an in vitro peri-implant wound healing model

    Science.gov (United States)

    Burkhardt, Melanie A.; Waser, Jasmin; Milleret, Vincent; Gerber, Isabel; Emmert, Maximilian Y.; Foolen, Jasper; Hoerstrup, Simon P.; Schlottig, Falko; Vogel, Viola

    2016-02-01

    Low correlations of cell culture data with clinical outcomes pose major medical challenges with costly consequences. While the majority of biomaterials are tested using in vitro cell monocultures, the importance of synergistic interactions between different cell types on paracrine signalling has recently been highlighted. In this proof-of-concept study, we asked whether the first contact of surfaces with whole human blood could steer the tissue healing response. This hypothesis was tested using alkali-treatment of rough titanium (Ti) surfaces since they have clinically been shown to improve early implant integration and stability, yet blood-free in vitro cell cultures poorly correlated with in vivo tissue healing. We show that alkali-treatment, compared to native Ti surfaces, increased blood clot thickness, including platelet adhesion. Strikingly, blood clots with entrapped blood cells in synergistic interactions with fibroblasts, but not fibroblasts alone, upregulated the secretion of major factors associated with fast healing. This includes matrix metalloproteinases (MMPs) to break down extracellular matrix and the growth factor VEGF, known for its angiogenic potential. Consequently, in vitro test platforms, which consider whole blood-implant interactions, might be superior in predicting wound healing in response to biomaterial properties.

  8. Comparison of periodontal and peri-implant inflammatory parameters among patients with prediabetes, type 2 diabetes mellitus and non-diabetic controls.

    Science.gov (United States)

    Abduljabbar, Tariq; Al-Sahaly, Faisal; Al-Kathami, Mohammed; Afzal, Sibtain; Vohra, Fahim

    2017-07-01

    The aim was to compare periodontal and periimplant inflammatory parameters (plaque index [PI], bleeding on probing [BOP], probing depth [PD] and marginal bone loss [MBL]) among patients with prediabetes, type-2 diabetes mellitus (T2DM) and non-diabetic controls. Forty-five patients with prediabetes (Group-1), 43 patients with T2DM (Group-2) and 42 controls (Group-3) were included. Demographic data was recorded using a questionnaire. Full mouth and periimplant clinical (PI, BOP and PD) were assessed and the radiographic MBL were measured on digital radiographs. In all groups, haemoglobin A1c (HbA1c) levels were also measured. p values less than .05 were considered statistically significant. The mean HbA1c levels of participants in groups 1, 2 and 3 were 6.1%, 8.4% and 4.8%, respectively. The mean duration of prediabetes and T2DM among patients in groups 1 and 2 were 1.9 ± 0.3 and 3.1 ± 0.5 years, respectively. Periodontal and periimplant PI, BOP, PD and MBL were higher in groups 1 (p prediabetes and T2DM compared with controls; however, these parameters were comparable among patients with prediabetes and T2DM.

  9. Clinical Application of the PES/WES Index on Natural Teeth: Case Report and Literature Review

    OpenAIRE

    Lanza, Alessandro; Di Francesco, Fabrizio; De Marco, Gennaro; Femiano, Felice; Itro, Angelo

    2017-01-01

    The use of reliable indices to evaluate the aesthetic outcomes in the aesthetic area is an important and objective clinical aid to monitor the results over time. According to the literature various indices were proposed to evaluate aesthetic outcomes of implant-prosthetic rehabilitation of the anterior area like Peri-Implant and Crown Index [PICI], Implant Crown Aesthetic Index [ICAI], Pink Esthetic Score/White Esthetic Score [PES/WES], and Pink Esthetic Score [PES] but none of them was relat...

  10. Clinics in Mother and Child Health

    African Journals Online (AJOL)

    Clinics in Mother and Child Health is a bilingual journal and publishes (in ... Health Care Facility in South-South Nigeria: The Need for Middle Level Health Manpower ... Le syndrome des ovaires micropolykystiques chez les femmes infertiles à ...

  11. Patient-based and clinical outcomes of implant telescopic attachment-retained mandibular overdentures: a 1-year longitudinal prospective study.

    Science.gov (United States)

    Yunus, Norsiah; Saub, Roslan; Taiyeb Ali, Tara Bai; Salleh, Nosizana Mohd; Baig, Mirza Rustum

    2014-01-01

    The purpose of this study was to evaluate and compare Oral Health-Related Quality of Life (OHRQoL), denture satisfaction, and masticatory performance in edentulous patients provided with mandibular implant-supported overdentures (ISODs) retained with telescopic attachments and those of conventional complete dentures (CCDs). Peri-implant soft tissue changes were also evaluated at various intervals during a 1-year observation period. Participating patients received new CCDs and later received two mandibular interforaminal implants and had their mandibular CCDs converted into ISODs with telescopic attachments. Questionnaires were used to assess OHRQoL (Shortened Oral Health Impact Profile-14, Malaysian version) and denture satisfaction at different stages of treatment with CCDs and ISODs. Objective masticatory performance with the CCDs and ISODs was recorded with a mixing ability test. Evaluations were carried out at 3 months with the new CCDs, 3 months after mandibular ISOD provision, and 1 year after receiving the ISOD. Peri-implant parameters were additionally assessed at specific intervals during the treatment period. The data obtained were statistically analyzed and compared. In the 17 patients who completed the protocol, significant improvements were observed in OHRQoL and patient satisfaction when CCDs were modified to ISODs, after 3 months, and at 1 year. Significantly better mixing ability with the ISOD was noted, with the highest values observed at 1 year. Statistically insignificant differences were observed for all the peri-implant parameters, except for gingival recession, for which significant changes were observed 6 months after ISOD delivery (values had stabilized by 1 year). Telescopic crown attachment-retained mandibular ISODs improved OHRQoL, dental prosthesis satisfaction, and masticatory performance compared to CCDs. Peri-implant soft tissue response and implant stability were found to be favorable after 1 year.

  12. Comparison of clinical and radiographic status around dental implants placed in patients with and without prediabetes: 1-year follow-up outcomes.

    Science.gov (United States)

    Al Amri, Mohammad D; Abduljabbar, Tariq S; Al-Kheraif, Abdulaziz A; Romanos, Georgios E; Javed, Fawad

    2017-02-01

    We hypothesized that peri-implant soft tissue inflammation is worse and peri-implant marginal bone loss (MBL) is higher around dental implants placed in patients with prediabetes compared to healthy subjects. The aim of the present 12-month follow-up study was to compare the clinical and radiographic status around dental implants placed in patients with and without prediabetes. Twelve patients with medically diagnosed prediabetes (Group-1) and 12 controls (Group-2) were included. All patients were indicated for single tooth maxillary or mandibular premolar replacement with the adjacent teeth intact. Success of the restored implants was assessed by comparing clinical (peri-implant bleeding on probing [BOP], and probing pocket depth [PPD]) and radiographic (peri-implant MBL) parameters at baseline and at 12-months follow-up. Statistical analysis was performed using one-way analysis of variance, and P-values implant pockets with PPD ≥ 4 mm in both groups. At 12-month follow-up, the mean MBL among implants placed in groups 1 and 2 were 0.2 ± 0.1 mm and 0.1 ± 0.01 mm, respectively. Overall, the periodontal status (PI, BOP and PPD ≥ 4 mm) at 12-month follow-up was comparable among patients in both groups. Within the limitations of this study, it is concluded that dental implants inserted in prediabetic and healthy patients have similar success rates and remain clinically and radiographically stable after 1-year follow-up. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  13. Patient preference and satisfaction with implant-supported mandibular overdentures retained with ball or locator attachments: a crossover clinical trial.

    Science.gov (United States)

    Krennmair, Gerald; Seemann, Rudolf; Fazekas, Andres; Ewers, Rolf; Piehslinger, Eva

    2012-01-01

    To determine patient satisfaction and preference for implant-supported mandibular overdentures (IOD) retained with ball or Locator attachments. In addition, peri-implant conditions and prosthodontic maintenance efforts for the final attachments were evaluated after 1 year of function. In this crossover clinical trial, 20 edentulous patients were recruited to receive two mandibular implants in the canine region and were provided with implant-retained mandibular overdentures and new complete maxillary dentures. Implant-retained mandibular overdentures were stabilized with either ball attachments or Locator attachments, in random order. After 3 months of function, the attachments in the existing denture were changed. Questionnaires on satisfaction/complaints with the prostheses were administered at baseline (with the old dentures) and after 3 months of function with each attachment, thus providing for an intraindividual comparison. The decision for the final attachment chosen was based on the patient's preference. For the definitive attachment, peri-implant conditions (peri-implant marginal bone resorption, pocket depth, and Plaque Index, Gingival Index, and Bleeding Index) as well as prosthodontic maintenance efforts and satisfaction score were evaluated after an insertion period of 1 year. Nineteen (95%) patients completed the study (1 dropout). Patient satisfaction improved significantly (P<.05) from baseline (old dentures) to the new prostheses retained with each of the two attachment types for all domains of satisfaction. However, there were no differences between ball or Locator attachment for any items of satisfaction evaluated and neither attachment had a significant patient preference. No differences for peri-implant parameters or for patient satisfaction were noted between the definitive attachments (ball, n=10; Locator, n=9) after 1 year. Although the overall incidence rate of prosthodontic maintenance did not significantly differ between both retention

  14. Long-term clinical and prosthetic outcomes of soft liner and clip attachments for bar/implant overdentures: a randomised controlled clinical trial.

    Science.gov (United States)

    ELsyad, M A; Shaheen, N H; Ashmawy, T M

    2017-06-01

    Long-term clinical and prosthetic outcomes of soft liner attachments for bar/implant overdentures were not sufficiently investigated. The aim of this trial was to evaluate clinical and prosthetic outcomes of resilient liner and clip attachments for bar/implant-retained mandibular overdenture after 7 years. Thirty edentulous male participants received two implants in the canine areas of the mandible. Three months later, implants were splinted with a resilient bar. Mandibular overdentures were connected to the bars with either clip (CR group, n = 15) or resilient liner (RR group, n = 15) attachments. Plaque index (PI), gingival index (GI), probing depth (PD), vertical bone loss (VBL), horizontal bone loss (HBLO) and prosthetic complications (PCs) were evaluated at denture delivery (T0), 6 (T 6m ), 12 (T1), 24 (T2), 36 (T3), 48 (T4), 60 (T5), 72 (T6) and 84 (T7) months after insertion. PI and GI increased significantly with time for CR and decreased significantly for RR (P overdentures than clip attachments in terms of peri-implant tissue health and prosthetic complications after 7 years. © 2017 John Wiley & Sons Ltd.

  15. Electronic health records to facilitate clinical research

    OpenAIRE

    Cowie, Martin R.; Blomster, Juuso I.; Curtis, Lesley H.; Duclaux, Sylvie; Ford, Ian; Fritz, Fleur; Goldman, Samantha; Janmohamed, Salim; Kreuzer, J?rg; Leenay, Mark; Michel, Alexander; Ong, Seleen; Pell, Jill P.; Southworth, Mary Ross; Stough, Wendy Gattis

    2016-01-01

    Electronic health records (EHRs) provide opportunities to enhance patient care, embed performance measures in clinical practice, and facilitate clinical research. Concerns have been raised about the increasing recruitment challenges in trials, burdensome and obtrusive data collection, and uncertain generalizability of the results. Leveraging electronic health records to counterbalance these trends is an area of intense interest. The initial applications of electronic health records, as the pr...

  16. Electronic health records to facilitate clinical research.

    Science.gov (United States)

    Cowie, Martin R; Blomster, Juuso I; Curtis, Lesley H; Duclaux, Sylvie; Ford, Ian; Fritz, Fleur; Goldman, Samantha; Janmohamed, Salim; Kreuzer, Jörg; Leenay, Mark; Michel, Alexander; Ong, Seleen; Pell, Jill P; Southworth, Mary Ross; Stough, Wendy Gattis; Thoenes, Martin; Zannad, Faiez; Zalewski, Andrew

    2017-01-01

    Electronic health records (EHRs) provide opportunities to enhance patient care, embed performance measures in clinical practice, and facilitate clinical research. Concerns have been raised about the increasing recruitment challenges in trials, burdensome and obtrusive data collection, and uncertain generalizability of the results. Leveraging electronic health records to counterbalance these trends is an area of intense interest. The initial applications of electronic health records, as the primary data source is envisioned for observational studies, embedded pragmatic or post-marketing registry-based randomized studies, or comparative effectiveness studies. Advancing this approach to randomized clinical trials, electronic health records may potentially be used to assess study feasibility, to facilitate patient recruitment, and streamline data collection at baseline and follow-up. Ensuring data security and privacy, overcoming the challenges associated with linking diverse systems and maintaining infrastructure for repeat use of high quality data, are some of the challenges associated with using electronic health records in clinical research. Collaboration between academia, industry, regulatory bodies, policy makers, patients, and electronic health record vendors is critical for the greater use of electronic health records in clinical research. This manuscript identifies the key steps required to advance the role of electronic health records in cardiovascular clinical research.

  17. Health record systems that meet clinical needs

    Directory of Open Access Journals (Sweden)

    Gabriella Negrini

    2012-10-01

    Full Text Available Introduction Increased attention has recently been focused on health record systems as a result of accreditation programs, a growing emphasis on patient safety, and the increase in lawsuits involving allegations of malpractice. Health-care professionals frequently express dissatisfaction with the health record systems and complain that the data included are neither informative nor useful for clinical decision making. This article reviews the main objectives of a hospital health record system, with emphasis on its roles in communication and exchange among clinicians, patient safety, and continuity of care, and asks whether current systems have responded to the recent changes in the Italian health-care system.Discussion If health records are to meet the expectations of all health professionals, the overall information need must be carefully analyzed, a common data set must be created, and essential specialist contributions must be defined. Working with health-care professionals, the hospital management should define how clinical information is to be displayed and organized, identify a functionally optimal layout, define the characteristics of ongoing patient assessment in terms of who will be responsible for these activities and how often they will be performed. Internet technology can facilitate data retrieval and meet the general requirements of a paper-based health record system, but it must also ensure focus on clinical information, business continuity, integrity, security, and privacy.Conclusions The current health records system needs to be thoroughly revised to increase its accessibility, streamline the work of health-care professionals who consult it, and render it more useful for clinical decision making—a challenging task that will require the active involvement of the many professional classes involved.

  18. Senior health clinics: are they financially viable?

    Science.gov (United States)

    McAtee, Robin E; Crandall, Debra; Wright, Larry D; Beverly, Claudia J

    2009-07-01

    Are hospital-based outpatient interdisciplinary clinics a financially viable alternative for caring for our burgeoning population of older adults in America? Although highly popular, with high patient satisfaction rates among older adults and their families, senior health clinics (SHCs) can be expensive to operate, with limited quantifiable health outcomes. This study analyzed three geriatric hospital-based interdisciplinary clinics in rural Arkansas by examining their patient profiles, revenues, and expenses. It closely examined the effects of the downstream revenue using the multiplier effect and acknowledged other factors that weigh heavily on the success of SHCs and the care of older adults. The findings highlight the similarities and differences in the three clinics' operating and financial structures in addition to the clinics' and providers' productivity. The analysis presents an evidence-based illustration that SHCs can break even or lose large amounts of money.

  19. Leveraging electronic health records for clinical research.

    Science.gov (United States)

    Raman, Sudha R; Curtis, Lesley H; Temple, Robert; Andersson, Tomas; Ezekowitz, Justin; Ford, Ian; James, Stefan; Marsolo, Keith; Mirhaji, Parsa; Rocca, Mitra; Rothman, Russell L; Sethuraman, Barathi; Stockbridge, Norman; Terry, Sharon; Wasserman, Scott M; Peterson, Eric D; Hernandez, Adrian F

    2018-04-30

    Electronic health records (EHRs) can be a major tool in the quest to decrease costs and timelines of clinical trial research, generate better evidence for clinical decision making, and advance health care. Over the past decade, EHRs have increasingly offered opportunities to speed up, streamline, and enhance clinical research. EHRs offer a wide range of possible uses in clinical trials, including assisting with prestudy feasibility assessment, patient recruitment, and data capture in care delivery. To fully appreciate these opportunities, health care stakeholders must come together to face critical challenges in leveraging EHR data, including data quality/completeness, information security, stakeholder engagement, and increasing the scale of research infrastructure and related governance. Leaders from academia, government, industry, and professional societies representing patient, provider, researcher, industry, and regulator perspectives convened the Leveraging EHR for Clinical Research Now! Think Tank in Washington, DC (February 18-19, 2016), to identify barriers to using EHRs in clinical research and to generate potential solutions. Think tank members identified a broad range of issues surrounding the use of EHRs in research and proposed a variety of solutions. Recognizing the challenges, the participants identified the urgent need to look more deeply at previous efforts to use these data, share lessons learned, and develop a multidisciplinary agenda for best practices for using EHRs in clinical research. We report the proceedings from this think tank meeting in the following paper. Copyright © 2018 Elsevier, Inc. All rights reserved.

  20. Mobile clinics for women's and children's health.

    Science.gov (United States)

    Abdel-Aleem, Hany; El-Gibaly, Omaima M H; El-Gazzar, Amira F E-S; Al-Attar, Ghada S T

    2016-08-11

    The accessibility of health services is an important factor that affects the health outcomes of populations. A mobile clinic provides a wide range of services but in most countries the main focus is on health services for women and children. It is anticipated that improvement of the accessibility of health services via mobile clinics will improve women's and children's health. To evaluate the impact of mobile clinic services on women's and children's health. For related systematic reviews, we searched the Database of Abstracts of Reviews of Effectiveness (DARE), CRD; Health Technology Assessment Database (HTA), CRD; NHS Economic Evaluation Database (NHS EED), CRD (searched 20 February 2014).For primary studies, we searched ISI Web of Science, for studies that have cited the included studies in this review (searched 18 January 2016); WHO ICTRP, and ClinicalTrials.gov (searched 23 May 2016); Cochrane Central Register of Controlled Trials (CENTRAL), part of The Cochrane Library. www.cochranelibrary.com (including the Cochrane Effective Practice and Organisation of Care (EPOC) Group Specialised Register) (searched 7 April 2015); MEDLINE, OvidSP (searched 7 April 2015); Embase, OvidSP (searched 7 April 2015); CINAHL, EbscoHost (searched 7 April 2015); Global Health, OvidSP (searched 8 April 2015); POPLINE, K4Health (searched 8 April 2015); Science Citation Index and Social Sciences Citation Index, ISI Web of Science (searched 8 April 2015); Global Health Library, WHO (searched 8 April 2015); PAHO, VHL (searched 8 April 2015); WHOLIS, WHO (searched 8 April 2015); LILACS, VHL (searched 9 April 2015). We included individual- and cluster-randomised controlled trials (RCTs) and non-RCTs. We included controlled before-and-after (CBA) studies provided they had at least two intervention sites and two control sites. Also, we included interrupted time series (ITS) studies if there was a clearly defined point in time when the intervention occurred and at least three data points

  1. Implementing Home Health Standards in Clinical Practice.

    Science.gov (United States)

    Gorski, Lisa A

    2016-02-01

    In 1986, the American Nurses Association (ANA) published the first Standards of Home Health Practice. Revised in 1992 and expanded in 1999 to become Home Health Nursing: Scope and Standards of Practice, it was revised in 2008 and again in 2014. In the 2014 edition, there are 6 standards of home healthcare nursing practice and 10 standards of professional performance for home healthcare nursing. The focus of this article is to describe the home healthcare standards and to provide guidance for implementation in clinical practice. It is strongly encouraged that home healthcare administrators, educators, and staff obtain a copy of the standards and fully read this essential home healthcare resource.

  2. Electronic health records improve clinical note quality.

    Science.gov (United States)

    Burke, Harry B; Sessums, Laura L; Hoang, Albert; Becher, Dorothy A; Fontelo, Paul; Liu, Fang; Stephens, Mark; Pangaro, Louis N; O'Malley, Patrick G; Baxi, Nancy S; Bunt, Christopher W; Capaldi, Vincent F; Chen, Julie M; Cooper, Barbara A; Djuric, David A; Hodge, Joshua A; Kane, Shawn; Magee, Charles; Makary, Zizette R; Mallory, Renee M; Miller, Thomas; Saperstein, Adam; Servey, Jessica; Gimbel, Ronald W

    2015-01-01

    The clinical note documents the clinician's information collection, problem assessment, clinical management, and its used for administrative purposes. Electronic health records (EHRs) are being implemented in clinical practices throughout the USA yet it is not known whether they improve the quality of clinical notes. The goal in this study was to determine if EHRs improve the quality of outpatient clinical notes. A five and a half year longitudinal retrospective multicenter quantitative study comparing the quality of handwritten and electronic outpatient clinical visit notes for 100 patients with type 2 diabetes at three time points: 6 months prior to the introduction of the EHR (before-EHR), 6 months after the introduction of the EHR (after-EHR), and 5 years after the introduction of the EHR (5-year-EHR). QNOTE, a validated quantitative instrument, was used to assess the quality of outpatient clinical notes. Its scores can range from a low of 0 to a high of 100. Sixteen primary care physicians with active practices used QNOTE to determine the quality of the 300 patient notes. The before-EHR, after-EHR, and 5-year-EHR grand mean scores (SD) were 52.0 (18.4), 61.2 (16.3), and 80.4 (8.9), respectively, and the change in scores for before-EHR to after-EHR and before-EHR to 5-year-EHR were 18% (pquality scores significantly improved over the 5-year time interval. The EHR significantly improved the overall quality of the outpatient clinical note and the quality of all its elements, including the core and non-core elements. To our knowledge, this is the first study to demonstrate that the EHR significantly improves the quality of clinical notes. © The Author 2014. Published by Oxford University Press on behalf of the American Medical Informatics Association.

  3. Organizing the public health-clinical health interface: theoretical bases.

    Science.gov (United States)

    St-Pierre, Michèle; Reinharz, Daniel; Gauthier, Jacques-Bernard

    2006-01-01

    This article addresses the issue of the interface between public health and clinical health within the context of the search for networking approaches geared to a more integrated delivery of health services. The articulation of an operative interface is complicated by the fact that the definition of networking modalities involves complex intra- and interdisciplinary and intra- and interorganizational systems across which a new transversal dynamics of intervention practices and exchanges between service structures must be established. A better understanding of the situation is reached by shedding light on the rationale underlying the organizational methods that form the bases of the interface between these two sectors of activity. The Quebec experience demonstrates that neither the structural-functionalist approach, which emphasizes remodelling establishment structures and functions as determinants of integration, nor the structural-constructivist approach, which prioritizes distinct fields of practice in public health and clinical health, adequately serves the purpose of networking and integration. Consequently, a theoretical reframing is imperative. In this regard, structuration theory, which fosters the simultaneous study of methods of inter-structure coordination and inter-actor cooperation, paves the way for a better understanding of the situation and, in turn, to the emergence of new integration possibilities.

  4. Considering virtue: public health and clinical ethics.

    Science.gov (United States)

    Meagher, Karen M

    2011-10-01

    As bioethicists increasingly turn their attention to the profession of public health, many candidate frameworks have been proposed, often with an eye toward articulating the values and foundational concepts that distinguish this practice from curative clinical medicine. First, I will argue that while these suggestions for a distinct ethics of public health are promising, they arise from problems within contemporary bioethics that must be taken into account. Without such cognizance of the impetus for public health ethics, we risk developing a set of ethical resources meant exclusively for public health professionals, thereby neglecting implications for curative medical ethics and the practice of bioethics more broadly. Second, I will present reasons for thinking some of the critiques of dominant contemporary bioethics can be met by a virtue ethics approach. I present a virtue ethics response to criticisms that concern (1) increased rigor in bioethics discourse; (2) the ability of normative theory to accommodate context; and (3) explicit attention to the nature of ethical conflict. I conclude that a virtue ethics approach is a viable avenue for further inquiry, one that leads us away from developing ethics of public health in a vacuum and has the potential for overcoming certain pitfalls of contemporary bioethics discourse. © 2011 Blackwell Publishing Ltd.

  5. Assessing clinical competency in the health sciences

    Science.gov (United States)

    Panzarella, Karen Joanne

    To test the success of integrated curricula in schools of health sciences, meaningful measurements of student performance are required to assess clinical competency. This research project analyzed a new performance assessment tool, the Integrated Standardized Patient Examination (ISPE), for assessing clinical competency: specifically, to assess Doctor of Physical Therapy (DPT) students' clinical competence as the ability to integrate basic science knowledge with clinical communication skills. Thirty-four DPT students performed two ISPE cases, one of a patient who sustained a stroke and the other a patient with a herniated lumbar disc. Cases were portrayed by standardized patients (SPs) in a simulated clinical setting. Each case was scored by an expert evaluator in the exam room and then by one investigator and the students themselves via videotape. The SPs scored each student on an overall encounter rubric. Written feedback was obtained from all participants in the study. Acceptable reliability was demonstrated via inter-rater agreement as well as inter-rater correlations on items that used a dichotomous scale, whereas the items requiring the use of the 4-point rubric were somewhat less reliable. For the entire scale both cases had a significant correlation between the Expert-Investigator pair of raters, for the CVA case r = .547, p performances on the ISPE with other independent estimates of students' competence. The unique integration questions of the ISPE were judged to have good content validity from experts and students, suggestive that integration, a most crucial element of clinical competence, while done in the mind of the student, can be practiced, learned and assessed.

  6. Clinical Trials: A Crucial Key to Human Health Research

    Science.gov (United States)

    ... Past Issues Clinical Trials: A Crucial Key to Human Health Research Past Issues / Summer 2006 Table of Contents ... Javascript on. Photo: PhotoDisc At the forefront of human health research today are clinical trials—studies that use ...

  7. [Clinical bioethics for primary health care].

    Science.gov (United States)

    González-de Paz, L

    2013-01-01

    The clinical decision making process with ethical implications in the area of primary healthcare differs from other healthcare areas. From the ethical perspective it is important to include these issues in the decision making model. This dissertation explains the need for a process of bioethical deliberation for Primary Healthcare, as well as proposing a method for doing so. The decision process method, adapted to this healthcare area, is flexible and requires a more participative Healthcare System. This proposal involves professionals and the patient population equally, is intended to facilitate the acquisition of responsibility for personal and community health. Copyright © 2012 Sociedad Española de Médicos de Atención Primaria (SEMERGEN). Publicado por Elsevier España. All rights reserved.

  8. The key to success: maintaining the long-term health of implants.

    Science.gov (United States)

    Silverstein, L; Garg, A; Callan, D; Shatz, P

    1998-02-01

    During the infancy years of dental implantology, the emphasis for long-term success of osseointegrated implants was the surgical phase of dental implantology. In the years that followed, the emphasis for success had switched from a purely surgical influence to focusing more on the proper fixture placement which would be dictated by the prosthetic and aesthetic needs of each particular case. In more recent years, the dental profession has recognized professional implant maintenance and diligent patient home care as two critical factors for the long-term success of dental implants. The microbiota and clinical presentation of peri-implantitis is the same as periodontitis around a natural tooth.

  9. The predictive value of microbiological findings on teeth, internal and external implant portions in clinical decision making.

    Science.gov (United States)

    Canullo, Luigi; Radovanović, Sandro; Delibasic, Boris; Blaya, Juan Antonio; Penarrocha, David; Rakic, Mia

    2017-05-01

    The primary aim of this study was to evaluate 23 pathogens associated with peri-implantitis at inner part of implant connections, in peri-implant and periodontal pockets between patients suffering peri-implantitis and participants with healthy peri-implant tissues; the secondary aim was to estimate the predictive value of microbiological profile in patients wearing dental implants using data mining methods. Fifty participants included in the present case─control study were scheduled for collection of plaque samples from the peri-implant pockets, internal connection, and periodontal pocket. Real-time polymerase chain reaction was performed to quantify 23 pathogens. Three predictive models were developed using C4.5 decision trees to estimate the predictive value of microbiological profile between three experimental sites. The final sample included 47 patients (22 healthy controls and 25 diseased cases), 90 implants (43 with healthy peri-implant tissues and 47 affected by peri-implantitis). Total and mean pathogen counts at inner portions of the implant connection, in peri-implant and periodontal pockets were generally increased in peri-implantitis patients when compared to healthy controls. The inner portion of the implant connection, the periodontal pocket and peri-implant pocket, respectively, presented a predictive value of microbiologic profile of 82.78%, 94.31%, and 97.5% of accuracy. This study showed that microbiological profile at all three experimental sites is differently characterized between patients suffering peri-implantitis and healthy controls. Data mining analysis identified Parvimonas micra as a highly accurate predictor of peri-implantitis when present in peri-implant pocket while this method generally seems to be promising for diagnosis of such complex infections. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  10. Evaluation of 316 narrow diameter implants followed for 5-10 years: a clinical and radiographic retrospective study.

    Science.gov (United States)

    Arisan, Volkan; Bölükbaşi, Nilüfer; Ersanli, Selim; Ozdemir, Tayfun

    2010-03-01

    Narrow diameter implants (NDIs; diameter >3.75 mm) are useful in replacement of missing incisor teeth and when the bucco-lingual width of the edentulous crest is insufficient. The present study evaluated the success and survival rates, peri-implant parameters, mechanical and prosthetic post-loading complications of NDIs followed over a 10-year period. Three hundred and sixteen NDIs were inserted into 139 patients and restored with 120 prostheses. Clinical and radiographic assessment data were collected during recall visits. Implant success (SC), cumulative survival rate (CSR), marginal bone loss (MBL), peri-implant conditions and prosthetic complications were assessed. Cox proportional hazards regression analysis, Kaplan-Meier survival curves with the log-rank test and life table analysis were used to evaluate the outcome of NDIs within comparable subgroups. MBL and peri-implant parameters measured annually were further analyzed. The mean follow-up time was 9.1 years (range: 60-124 months). Twelve implants were lost in the healing phase and two during function. The mean MBL in the maxilla and the mandible was 1.32 +/- 0.13 and 1.28 +/- 0.3 mm, respectively, after 10 years. SC and CSR were 91.4% and 92.3%, respectively, after 124 months. Smoking and posterior localization were associated with an increased risk of failure. Cement loosening (16.8%) was the most common prosthetic complication. No implants were fractured. NDIs can be used with confidence where a regular diameter implant is not suitable. MBL around NDIs occurred predominantly within 2 years of loading and was minimal thereafter. Further studies are required to clarify the possible risks associated with smoking and posterior placement.

  11. Oral Rehabilitation of a Patient With Ectodermal Dysplasia Treated With Fresh-Frozen Bone Allografts and Computer-Guided Implant Placement: A Clinical Case Report.

    Science.gov (United States)

    Maiorana, Carlo; Poli, Pier Paolo; Poggio, Carlo; Barbieri, Paola; Beretta, Mario

    2017-05-01

    Ectodermal dysplasia (ED) is an inherited disorder characterized by abnormality of ectodermally derived structures. A recurrent oral finding is oligodontia, which in turn leads to a severely hypotrophic alveolar process with typical knife-edge morphology and adverse ridge contours. This unfavorable anatomy can seriously hamper proper implant placement. Fresh-frozen bone (FFB) allografts recently have been proposed to augment the residual bone volume for implant placement purposes; however, scientific evidence concerning the use of FFB to treat ED patients is absent. Similarly, data reporting computer-aided template-guided implant placement in medically compromised patients are limited. Thus the purpose of this report is to illustrate the oral rehabilitation of a female patient affected by ED and treated with appositional FFB block grafts and consecutive computer-guided flapless implant placement in a 2-stage procedure. Fixed implant-supported dental prostheses were finally delivered to the patient, which improved her self-esteem and quality of life. During the follow-up recall 1 year after the prosthetic loading, the clinical examination showed healthy peri-implant soft tissues with no signs of bleeding on probing or pathologic probing depths. The panoramic radiograph confirmed the clinical stability of the result. Peri-implant marginal bone levels were radiographically stable with neither pathologic bone loss at the mesial and distal aspects of each implant nor peri-implant radiolucency. Within the limitations of this report, the use of FFB allografts in association with computer-aided flapless implant surgery might be considered a useful technique in patients affected by ED. Copyright © 2017 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  12. Health Informatics and E-health Curriculum for Clinical Health Profession Degrees.

    Science.gov (United States)

    Gray, Kathleen; Choo, Dawn; Butler-Henderson, Kerryn; Whetton, Sue; Maeder, Anthony

    2015-01-01

    The project reported in this paper models a new approach to making health informatics and e-health education widely available to students in a range of Australian clinical health profession degrees. The development of a Masters level subject uses design-based research to apply educational quality assurance practices which are consistent with university qualification frameworks, and with clinical health profession education standards; at the same time it gives recognition to health informatics as a specialised profession in its own right. The paper presents details of (a) design with reference to the Australian Qualifications Framework and CHIA competencies, (b) peer review within a three-university teaching team, (c) external review by experts from the professions, (d) cross-institutional interprofessional online learning, (e) methods for evaluating student learning experiences and outcomes, and (f) mechanisms for making the curriculum openly available to interested parties. The project has sought and found demand among clinical health professionals for formal health informatics and e-health education that is designed for them. It has helped the educators and organisations involved to understand the need for nuanced and complementary health informatics educational offerings in Australian universities. These insights may aid in further efforts to address substantive and systemic challenges that clinical informatics faces in Australia.

  13. Department of Defense, Deployment Health Clinical Center

    Science.gov (United States)

    ... general public of trends in mental health and mental health care within the Military Health System Get The Numbers Real Warriors Campaign Real Warriors Campaign A multimedia public awareness campaign designed to combat the stigma associated with ...

  14. Periodontal manifestations of systemic diseases and developmental and acquired conditions: Consensus report of workgroup 3 of the 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions.

    Science.gov (United States)

    Jepsen, Søren; Caton, Jack G; Albandar, Jasim M; Bissada, Nabil F; Bouchard, Philippe; Cortellini, Pierpaolo; Demirel, Korkud; de Sanctis, Massimo; Ercoli, Carlo; Fan, Jingyuan; Geurs, Nicolaas C; Hughes, Francis J; Jin, Lijian; Kantarci, Alpdogan; Lalla, Evanthia; Madianos, Phoebus N; Matthews, Debora; McGuire, Michael K; Mills, Michael P; Preshaw, Philip M; Reynolds, Mark A; Sculean, Anton; Susin, Cristiano; West, Nicola X; Yamazaki, Kazuhisa

    2018-06-01

    A variety of systemic diseases and conditions can affect the course of periodontitis or have a negative impact on the periodontal attachment apparatus. Gingival recessions are highly prevalent and often associated with hypersensitivity, the development of caries and non-carious cervical lesions on the exposed root surface and impaired esthetics. Occlusal forces can result in injury of teeth and periodontal attachment apparatus. Several developmental or acquired conditions associated with teeth or prostheses may predispose to diseases of the periodontium. The aim of this working group was to review and update the 1999 classification with regard to these diseases and conditions, and to develop case definitions and diagnostic considerations. Discussions were informed by four reviews on 1) periodontal manifestions of systemic diseases and conditions; 2) mucogingival conditions around natural teeth; 3) traumatic occlusal forces and occlusal trauma; and 4) dental prostheses and tooth related factors. This consensus report is based on the results of these reviews and on expert opinion of the participants. Key findings included the following: 1) there are mainly rare systemic conditions (such as Papillon-Lefevre Syndrome, leucocyte adhesion deficiency, and others) with a major effect on the course of periodontitis and more common conditions (such as diabetes mellitus) with variable effects, as well as conditions affecting the periodontal apparatus independently of dental plaque biofilm-induced inflammation (such as neoplastic diseases); 2) diabetes-associated periodontitis should not be regarded as a distinct diagnosis, but diabetes should be recognized as an important modifying factor and included in a clinical diagnosis of periodontitis as a descriptor; 3) likewise, tobacco smoking - now considered a dependence to nicotine and a chronic relapsing medical disorder with major adverse effects on the periodontal supporting tissues - is an important modifier to be included in

  15. Spontaneous Pneumomediastinum: Case Presentation to a College Student Health Clinic

    Science.gov (United States)

    Spotts, P. Hunter

    2017-01-01

    The author describes a case of spontaneous pneumomediastinum (SPM) in a 19-year-old man presenting to a college student health clinic. The author also provides a review on SPM, including clinical manifestations, diagnostic evaluation, and management.

  16. Platform links clinical data with electronic health records

    Science.gov (United States)

    To make data gathered from patients in clinical trials available for use in standard care, NCI has created a new computer tool to support interoperability between clinical research and electronic health record systems. This new software represents an inno

  17. What is Clinical Safety in Electronic Health Care Record Systems?

    Science.gov (United States)

    Davies, George

    There is mounting public awareness of an increasing number of adverse clinical incidents within the National Health Service (NHS), but at the same time, large health care projects like the National Programme for IT (NPFIT) are claiming that safer care is one of the benefits of the project and that health software systems in particular have the potential to reduce the likelihood of accidental or unintentional harm to patients. This paper outlines the approach to clinical safety management taken by CSC, a major supplier to NPFIT; discusses acceptable levels of risk and clinical safety as an end-to-end concept; and touches on the future for clinical safety in health systems software.

  18. Mobile health clinics in the era of reform.

    Science.gov (United States)

    Hill, Caterina F; Powers, Brian W; Jain, Sachin H; Bennet, Jennifer; Vavasis, Anthony; Oriol, Nancy E

    2014-03-01

    Despite the role of mobile clinics in delivering care to the full spectrum of at-risk populations, the collective impact of mobile clinics has never been assessed. This study characterizes the scope of the mobile clinic sector and its impact on access, costs, and quality. It explores the role of mobile clinics in the era of delivery reform and expanded insurance coverage. A synthesis of observational data collected through Mobile Health Map and published literature related to mobile clinics. Analysis of data from the Mobile Health Map Project, an online platform that aggregates data on mobile health clinics in the United States, supplemented by a comprehensive literature review. Mobile clinics represent an integral component of the healthcare system that serves vulnerable populations and promotes high-quality care at low cost. There are an estimated 1500 mobile clinics receiving 5 million visits nationwide per year. Mobile clinics improve access for vulnerable populations, bolster prevention and chronic disease management, and reduce costs. Expanded coverage and delivery reform increase opportunities for mobile clinics to partner with hospitals, health systems, and insurers to improve care and lower costs. Mobile clinics have a critical role to play in providing high-quality, low-cost care to vulnerable populations. The postreform environment, with increasing accountability for population health management and expanded access among historically underserved populations, should strengthen the ability for mobile clinics to partner with hospitals, health systems, and payers to improve care and lower costs.

  19. Community Mental Health Clinic Cost Reports

    Data.gov (United States)

    U.S. Department of Health & Human Services — Healthcare Cost Report Information System (HCRIS) Dataset - Community Mental Health Center (CMHC). This data was reported on form CMS-2088-92. The data in this...

  20. Peri-implantitis in de algemene kaakchirurgische praktijk: een pilotonderzoek

    NARCIS (Netherlands)

    Frank, M.H.; Baas, E.M.; de Lange, J.

    2012-01-01

    Een peri-implantaire infectie is een aandoening waarvan de prevalentie en de incidentie jaarlijks hoger zullen worden als gevolg van de toegenomen hoeveelheden implantaten die worden geplaatst. Aan de hand van bestaande literatuur is als pilot een patiënt-controleonderzoek uitgevoerd onder de

  1. Anna Louropoulou: 'Peri-implantitis vraagt om eenduidige behandelafspraken'

    NARCIS (Netherlands)

    Louropoulou, A.

    2015-01-01

    Het aantal geplaatste implantaten neemt toe, maar in de meeste gevallen ontbreekt een adequate nazorg. De NVvP nam het initiatief tot de ontwikkeling van een richtlijn perio-implantitis en zocht hiervoor de samenwerking met de NVOI. Parodontoloog/promovenda Anna Louropoulou: "De richtlijn is

  2. Evaluation of peri-implant bone using fractal analysis

    International Nuclear Information System (INIS)

    Jung, Yun Hoa

    2005-01-01

    The purpose of this study was to investigate whether the fractal dimension of successive panoramic radiographs of bone after implant placement is useful in the characterization of structural change in alveolar bone. Twelve subjects with thirty-five implants were retrospectively followed-up from one week to six months after implantation. Thirty-six panoramic radiographs from twelve patients were classified into 1 week. 1-2 months and 3-6 months after implantation and digitized. The windows of bone apical and mesial or distal to the implant were defined as peri apical region of interest (ROI) and inter dental ROI; the fractal dimension of the image was calculated. There was not a statistically significant difference in fractal dimensions during the period up to 6 months after implantation. The fractal dimensions were higher in 13 and 15 mm than 10 and 11.5 mm implant length at inter dental ROIs in 3-6 months after implantation (p<0.01). Longer fixtures showed the higher fractal dimension of bone around implant. This investigation needs further exploration with large numbers of implants for longer follow-up periods.

  3. Implant Materials Generate Different Peri-implant Inflammatory Factors

    OpenAIRE

    Olivares-Navarrete, Rene; Hyzy, Sharon L.; Slosar, Paul J.; Schneider, Jennifer M.; Schwartz, Zvi; Boyan, Barbara D.

    2015-01-01

    Study Design. An in vitro study examining factors produced by human mesenchymal stem cells on spine implant materials. Objective. The aim of this study was to examine whether the inflammatory microenvironment generated by cells on titanium-aluminum-vanadium (Ti-alloy, TiAlV) surfaces is affected by surface microtexture and whether it differs from that generated on poly-ether-ether-ketone (PEEK). Summary of Background Data. Histologically, implants fabricated from PEEK have a fibrous connectiv...

  4. Second generation plant health clinics in Uganda

    DEFF Research Database (Denmark)

    Danielsen, Solveig; Matsiko, Frank; Mutebi, Emmanuel

    coverage, Regularity/timeliness and Quality of plant healthcare. Field work was carried out over 15 months between July 2010 and September 2011 in 13 districts in the eastern, central and western parts of Uganda. A total of 205 plant clinic sessions were held in the period. The plant clinics received 2...... from the clinics to diagnostic laboratories. Although the plant clinics have become part of Ministry policy and districts showed increasing interest and commitment, there are some structural barriers that made it difficult for the districts to institutionalise the clinics and for the Ministry to play...... their leading role. A mismatch between institutional mandates/authority and allocated resources limited the scope of the actions both at district and national level. The plant clinics risk ‘falling between the two chairs’ of extension and pest and disease control. Finding a solid institutional base...

  5. Soft and Hard Tissue Changes around Tissue-Oriented Tulip-Design Implant Abutments: A 1-Year Randomized Prospective Clinical Trial.

    Science.gov (United States)

    Gutmacher, Zvi; Levi, Guy; Blumenfeld, Israel; Machtei, Eli E

    2015-10-01

    The advantages of platform switching using narrower abutments remain controversial. Many researchers suggest that platform switching can yield enhanced clinical results, while others remain skeptical. We hypothesize that the effectiveness of platform switching might be associated with the degree of reduction in size of the abutment. To radiographically and clinically examine a new abutment design created to move the implant-abutment interface farther medially. This was a prospective, randomized controlled clinical trial that included 27 patients (41 MIS Lance Plus® implants; MIS Implant Technologies, Karmiel, Israel). The patients' age ranged from 39 to 75 years. At the second stage of the surgery, the implants were randomly assigned to either the new platform switch Tulip abutment (TA) design or to the standard platform abutment (SA). Implant probing depth (IPD) and bleeding on probing (BOP) were recorded at baseline and after 12 months. Standardized periapical radiographs were taken (at baseline and at 12 months) and the marginal bone height measured. All implants were successfully integrated. The mean IPD at 1 year post-op was 2.91 mm for the SA group and 2.69 mm for the TA group (p > .05). Similarly, the BOP at 1 year was almost identical in both groups. The mean values of bone resorption at baseline were 0.98 ± 0.37 mm and 0.69 ± 0.20 for the TA and SA groups, respectively (p > .05). Bone loss (baseline to 12 months) was significantly greater in the SA group compared with the TA group. Use of the new TA, with its significantly downsized diameter, resulted in reduced bone loss at 1 year. Further research will be required to assess the long-term effect of this abutment on peri-implant health. © 2014 Wiley Periodicals, Inc.

  6. Clinical placements in mental health: a literature review.

    Science.gov (United States)

    Happell, Brenda; Gaskin, Cadeyrn J; Byrne, Louise; Welch, Anthony; Gellion, Stephen

    2015-01-01

    Gaining experience in clinical mental health settings is central to the education of health practitioners. To facilitate the ongoing development of knowledge and practice in this area, we performed a review of the literature on clinical placements in mental health settings. Searches in Academic Search Complete, CINAHL, Medline and PsycINFO databases returned 244 records, of which 36 met the selection criteria for this review. Five additional papers were obtained through scanning the reference lists of those papers included from the initial search. The evidence suggests that clinical placements may have multiple benefits (e.g. improving students' skills, knowledge, attitudes towards people with mental health issues and confidence, as well as reducing their fears and anxieties about working in mental health). The location and structure of placements may affect outcomes, with mental health placements in non-mental health settings appearing to have minimal impact on key outcomes. The availability of clinical placements in mental health settings varies considerably among education providers, with some students completing their training without undertaking such structured clinical experiences. Students have generally reported that their placements in mental health settings have been positive and valuable experiences, but have raised concerns about the amount of support they received from education providers and healthcare staff. Several strategies have been shown to enhance clinical placement experiences (e.g. providing students with adequate preparation in the classroom, implementing learning contracts and providing clinical supervision). Educators and healthcare staff need to work together for the betterment of student learning and the healthcare professions.

  7. [Individualized restorative designs and clinical evaluation for dental implants in the anterior esthetic zone with inappropriate conditions].

    Science.gov (United States)

    Dai, Wen-yong; Zhou, Guo-xing; Zhang, Xiao-zhen; Zhao, Yi; Wang, Jie; Yang, Yi; Zhu, Zhi-jun; Tang, Chun-bo

    2014-08-01

    To offer individualized restorative strategies for patients receiving dental implants in the anterior esthetic zone but with inappropriate available conditions and evaluate the clinical outcomes. Forty-six patients with 58 implants were recruited for the study in accordance with the criteria and received individualized implant prostheses in the anterior esthetic zone. The patients were followed up for 3-24 months, and the clinical outcomes were evaluated by pink and white esthetic scores (PES/WES). The patients were from 18 to 69 years old, and followed up for 12.6 months in average. According to the third month follow-up esthetic scores, for PES, 1.72% of the patients got low scores, 44.83% got medium scores and 53.45% got high scores; For WES, 0% got low scores, 20.69% got medium scores and 79.31% got high scores. No implant failure or peri-implantitis occurred. Individualized restorative designs for implants in the esthetic zone can effectively improve the appearance of the prostheses which originally have no appropriate available space. Close follow-up and monitoring of the peri-implant soft tissue and proper oral hygiene instructions are important to ensure the conditions of the prostheses.

  8. Maxillary Overdentures Supported by Four Splinted Direct Metal Laser Sintering Implants: A 3-Year Prospective Clinical Study

    Directory of Open Access Journals (Sweden)

    Francesco Mangano

    2014-01-01

    Full Text Available Purpose. Nowadays, the advancements in direct metal laser sintering (DMLS technology allow the fabrication of titanium dental implants. The aim of this study was to evaluate implant survival, complications, and peri-implant marginal bone loss of DMLS implants used to support bar-retained maxillary overdentures. Materials and Methods. Over a 2-year period, 120 implants were placed in the maxilla of 30 patients (18 males, 12 females to support bar-retained maxillary overdentures (ODs. Each OD was supported by 4 implants splinted by a rigid cobalt-chrome bar. At each annual follow-up session, clinical and radiographic parameters were assessed. The outcome measures were implant failure, biological and prosthetic complications, and peri-implant marginal bone loss (distance between the implant shoulder and the first visible bone-to-implant contact, DIB. Results. The 3-year implant survival rate was 97.4% (implant-based and 92.9% (patient-based. Three implants failed. The incidence of biological complication was 3.5% (implant-based and 7.1% (patient-based. The incidence of prosthetic complication was 17.8% (patient-based. No detrimental effects on marginal bone level were evidenced. Conclusions. The use of 4 DMLS titanium implants to support bar-retained maxillary ODs seems to represent a safe and successful procedure. Long-term clinical studies on a larger sample of patients are needed to confirm these results.

  9. Maxillary overdentures supported by four splinted direct metal laser sintering implants: a 3-year prospective clinical study.

    Science.gov (United States)

    Mangano, Francesco; Luongo, Fabrizia; Shibli, Jamil Awad; Anil, Sukumaran; Mangano, Carlo

    2014-01-01

    Purpose. Nowadays, the advancements in direct metal laser sintering (DMLS) technology allow the fabrication of titanium dental implants. The aim of this study was to evaluate implant survival, complications, and peri-implant marginal bone loss of DMLS implants used to support bar-retained maxillary overdentures. Materials and Methods. Over a 2-year period, 120 implants were placed in the maxilla of 30 patients (18 males, 12 females) to support bar-retained maxillary overdentures (ODs). Each OD was supported by 4 implants splinted by a rigid cobalt-chrome bar. At each annual follow-up session, clinical and radiographic parameters were assessed. The outcome measures were implant failure, biological and prosthetic complications, and peri-implant marginal bone loss (distance between the implant shoulder and the first visible bone-to-implant contact, DIB). Results. The 3-year implant survival rate was 97.4% (implant-based) and 92.9% (patient-based). Three implants failed. The incidence of biological complication was 3.5% (implant-based) and 7.1% (patient-based). The incidence of prosthetic complication was 17.8% (patient-based). No detrimental effects on marginal bone level were evidenced. Conclusions. The use of 4 DMLS titanium implants to support bar-retained maxillary ODs seems to represent a safe and successful procedure. Long-term clinical studies on a larger sample of patients are needed to confirm these results.

  10. Health Literacy Assessment in an Otolaryngology Clinic Population.

    Science.gov (United States)

    Megwalu, Uchechukwu C; Lee, Jennifer Y

    2016-12-01

    To assess health literacy in an adult tertiary care otolaryngology clinic population and to explore potential determinants of inadequate health literacy. Cross-sectional study. Tertiary care otolaryngology clinic. The study population included all adult patients treated at 3 of Stanford University's adult otolaryngology clinic sites between March 1 and 11, 2016. Data were collected via an anonymous questionnaire. Health literacy was assessed with the Brief Health Literacy Screen. Ten percent of patients had inadequate health literacy. White race (odds ratio [OR], 0.23) and having English as the primary language (OR, 0.12) were associated with adequate health literacy, while high school or lower level of education (OR, 3.2) was associated with inadequate health literacy. Age, sex, and Hispanic ethnicity were not associated with health literacy. Our study highlights the need for health literacy screening in the otolaryngology clinic setting and identifies sociodemographic risk factors for inadequate health literacy. Further studies are needed to assess the impact of health literacy on patient outcomes and to test specific interventions to address health literacy and health outcomes. © American Academy of Otolaryngology—Head and Neck Surgery Foundation 2016.

  11. Health Management Information System in Private Clinics in Ilorin ...

    African Journals Online (AJOL)

    This descriptive survey was conducted among private clinics located in Ilorin, Kwara State, Nigeria to determine the awareness and level of involvement of private clinic operators towards the National Health Management Information System. A total of 37 functional clinics responded to the survey. Structured questionnaire ...

  12. Clinical simulation as an evaluation method in health informatics

    DEFF Research Database (Denmark)

    Jensen, Sanne

    2016-01-01

    Safe work processes and information systems are vital in health care. Methods for design of health IT focusing on patient safety are one of many initiatives trying to prevent adverse events. Possible patient safety hazards need to be investigated before health IT is integrated with local clinical...... work practice including other technology and organizational structure. Clinical simulation is ideal for proactive evaluation of new technology for clinical work practice. Clinical simulations involve real end-users as they simulate the use of technology in realistic environments performing realistic...... tasks. Clinical simulation study assesses effects on clinical workflow and enables identification and evaluation of patient safety hazards before implementation at a hospital. Clinical simulation also offers an opportunity to create a space in which healthcare professionals working in different...

  13. Clinical investigations for SUS, the Brazilian public health system.

    Science.gov (United States)

    Paula, Ana Patrícia de; Giozza, Silvana Pereira; Pereira, Michelle Zanon; Boaventura, Patrícia Souza; Santos, Leonor Maria Pacheco; Sachetti, Camile Giaretta; Tamayo, César Omar Carranza; Kowalski, Clarissa Campos Guaragna; Elias, Flavia Tavares Silva; Serruya, Suzanne Jacob; Guimarães, Reinaldo

    2012-01-01

    Scientific and technological development is crucial for advancing the Brazilian health system and for promoting quality of life. The way in which the Brazilian Ministry of Health has supported clinical research to provide autonomy, self-sufficiency, competitiveness and innovation for the healthcare industrial production complex, in accordance with the National Policy on Science, Technology and Innovation in Healthcare, was analyzed. Descriptive investigation, based on secondary data, conducted at the Department of Science and Technology, Ministry of Health. The Ministry of Health's research management database, PesquisaSaúde, was analyzed from 2002 to 2009, using the key word "clinical research" in the fields "primary sub-agenda" or "secondary sub-agenda". The 368 projects retrieved were sorted into six categories: basic biomedical research, preclinical studies, expanded clinical research, clinical trials, infrastructure support and health technology assessment. From a structured review on "clinical research funding", results from selected countries are presented and discussed. The amount invested was R$ 140 million. The largest number of projects supported "basic biomedical research", while the highest amounts invested were in "clinical trials" and "infrastructure support". The southeastern region had the greatest proportion of projects and financial resources. In some respects, Brazil is ahead of other BRICS countries (Russia, India, China and South Africa), especially with regard to establishing a National Clinical Research Network. The Ministry of Health ensured investments to encourage clinical research in Brazil and contributed towards promoting cohesion between investigators, health policies and the healthcare industrial production complex.

  14. Clinical Trials Shed Light on Minority Health

    Science.gov (United States)

    ... Native Hawaiian and Pacific Islander communities. OMH project manager Christine Merenda, M.P.H., R.N. explains ... are disproportionately affected by diabetes. But historically, both women and minorities have been under-represented in clinical ...

  15. Sexual Health Attitudes, Knowledge, and Clinical Behaviors: Implications for Counseling

    Science.gov (United States)

    Russell, Elizabeth B.

    2012-01-01

    This article explores the impact of practitioners' attitudes and knowledge of sexual health on clinical behaviors. Sexual health topics are often areas of concern for clients of any age in counseling. Thus, counselors must be trained and equipped to address sexual health across the life span. This study explored whether child and adolescent…

  16. "Tobacco Truths": Health Magazine, Clinical Epidemiology, and the Cigarette Connection.

    Science.gov (United States)

    Wilmshurst, Sara

    2015-01-01

    In the 1950s, Health, a magazine published by the Health League of Canada, was nonchalant about the risks of smoking and largely ignored early epidemiological studies of lung cancer. In the 1960s the magazine stopped accepting cigarette advertising and began to oppose smoking. Health's writers adjusted to new knowledge; the magazine gradually accepted clinical epidemiology as a source of medical knowledge and recognized smoking as a public health risk. As Canada's only devoted health publication for a lay audience at the time, Health provides a unique window into ways that smoking and health were portrayed to its readers.

  17. Perspectives on Clinical Informatics: Integrating Large-Scale Clinical, Genomic, and Health Information for Clinical Care

    Directory of Open Access Journals (Sweden)

    In Young Choi

    2013-12-01

    Full Text Available The advances in electronic medical records (EMRs and bioinformatics (BI represent two significant trends in healthcare. The widespread adoption of EMR systems and the completion of the Human Genome Project developed the technologies for data acquisition, analysis, and visualization in two different domains. The massive amount of data from both clinical and biology domains is expected to provide personalized, preventive, and predictive healthcare services in the near future. The integrated use of EMR and BI data needs to consider four key informatics areas: data modeling, analytics, standardization, and privacy. Bioclinical data warehouses integrating heterogeneous patient-related clinical or omics data should be considered. The representative standardization effort by the Clinical Bioinformatics Ontology (CBO aims to provide uniquely identified concepts to include molecular pathology terminologies. Since individual genome data are easily used to predict current and future health status, different safeguards to ensure confidentiality should be considered. In this paper, we focused on the informatics aspects of integrating the EMR community and BI community by identifying opportunities, challenges, and approaches to provide the best possible care service for our patients and the population.

  18. 42 CFR 405.2462 - Payment for rural health clinic and Federally qualified health center services.

    Science.gov (United States)

    2010-10-01

    ... integral and subordinate part of a hospital, skilled nursing facility or home health agency participating... 42 Public Health 2 2010-10-01 2010-10-01 false Payment for rural health clinic and Federally qualified health center services. 405.2462 Section 405.2462 Public Health CENTERS FOR MEDICARE & MEDICAID...

  19. Clinical Outcome After 8 to 10 Years of Immediately Restored Single Implants Placed in Extraction Sockets and Healed Ridges.

    Science.gov (United States)

    Raes, Stefanie; Cosyn, Jan; Noyelle, Anabel; Raes, Filiep; De Bruyn, Hugo

    Recent systematic reviews point to the scarcity of single implants followed up longer than 5 years, and the incidence of biologic/technical complications is underreported. This prospective follow-up study documents 8- to 10-year clinical outcomes of immediately restored single implants in extraction sockets (immediate implant treatment [IIT]) and healed bone (conventional implant treatment [CIT]). Patients received a single, chemically modified, moderately rough titanium implant and a provisional crown on the day of surgery in the anterior maxilla (second premolar to second premolar). Provisional crowns were replaced by permanent crowns after 10 weeks. Implant survival, complications, crestal bone changes, plaque score, probing depth, and bleeding on probing were regularly recorded up to 10 years of follow-up. Of 16 patients who underwent IIT, 11 could be evaluated after 8 years. Of the 23 patients who received an implant in healed bone, 18 were finally evaluated. One implant failed in the IIT group at 12 weeks; all implants survived in the CIT group; 38% of the patients experienced at least one complication; 10% had one or more biologic complications, whereas 31% experienced one or more technical complications. There were no significant changes in crestal bone level from 1 to ≥ 8 years of follow-up for either group or between IIT and CIT at any time point (P ≥ .129). Only 6.9% (2 of 29) implants demonstrated progressive bone loss > 2 mm combined with pockets ≥ 6 mm. Immediately restored single implants in extraction sockets and healed ridges demonstrate good long-term outcomes in terms of implant survival, crestal bone loss, and peri-implant health. However, biologic and especially technical complications are common.

  20. A review of analytics and clinical informatics in health care.

    Science.gov (United States)

    Simpao, Allan F; Ahumada, Luis M; Gálvez, Jorge A; Rehman, Mohamed A

    2014-04-01

    Federal investment in health information technology has incentivized the adoption of electronic health record systems by physicians and health care organizations; the result has been a massive rise in the collection of patient data in electronic form (i.e. "Big Data"). Health care systems have leveraged Big Data for quality and performance improvements using analytics-the systematic use of data combined with quantitative as well as qualitative analysis to make decisions. Analytics have been utilized in various aspects of health care including predictive risk assessment, clinical decision support, home health monitoring, finance, and resource allocation. Visual analytics is one example of an analytics technique with an array of health care and research applications that are well described in the literature. The proliferation of Big Data and analytics in health care has spawned a growing demand for clinical informatics professionals who can bridge the gap between the medical and information sciences.

  1. An electronic health record for infertility clinics

    African Journals Online (AJOL)

    ART [assisted reproductive technology] data monitoring is not a substitute for sound ... Medical history, i.e. a detailed history of the patient's past health/ illnesses .... been done in the North Shore Hospital System on Long Island in. New York[6] ...

  2. Integration of clinical research documentation in electronic health records.

    Science.gov (United States)

    Broach, Debra

    2015-04-01

    Clinical trials of investigational drugs and devices are often conducted within healthcare facilities concurrently with clinical care. With implementation of electronic health records, new communication methods are required to notify nonresearch clinicians of research participation. This article reviews clinical research source documentation, the electronic health record and the medical record, areas in which the research record and electronic health record overlap, and implications for the research nurse coordinator in documentation of the care of the patient/subject. Incorporation of clinical research documentation in the electronic health record will lead to a more complete patient/subject medical record in compliance with both research and medical records regulations. A literature search provided little information about the inclusion of clinical research documentation within the electronic health record. Although regulations and guidelines define both source documentation and the medical record, integration of research documentation in the electronic health record is not clearly defined. At minimum, the signed informed consent(s), investigational drug or device usage, and research team contact information should be documented within the electronic health record. Institutional policies should define a standardized process for this integration in the absence federal guidance. Nurses coordinating clinical trials are in an ideal position to define this integration.

  3. A 3-year prospective clinical study of telescopic crown, bar, and locator attachments for removable four implant-supported maxillary overdentures.

    Science.gov (United States)

    Zou, Duohong; Wu, Yiqun; Huang, Wei; Wang, Feng; Wang, Shen; Zhang, Zhiyong; Zhang, Zhiyuan

    2013-01-01

    To evaluate telescopic crown (TC), bar, and locator attachments used in removable four implant-supported overdentures for patients with edentulous maxillae. A total of 30 maxillary edentulous patients were enrolled in a 3-year prospective study. Ten patients (group A) were treated with overdentures supported by TCs, 10 patients (group B) with overdentures supported by bar attachments, and 10 patients (group C) with overdentures supported by locator attachments. A total of 120 implants were used to restore oral function. During the 3-year follow-up period, implant survival and success rates, biologic and mechanical complications, prosthodontic maintenance efforts, and patient satisfaction were evaluated. All 30 patients were available for the 3-year follow-up and exhibited 100% implant survival and success rates. Peri-implant marginal bone resorption was not statistically significant for the three groups. There were lower plaque, bleeding, gingiva, and calculus indices in group C compared with groups A and B. The number of prosthodontic maintenance visits revealed eight complications in the TC group, seven complications in the bar group, and four complications in the locator group. However, there were no differences in the clinical effects of the overdentures in the three groups. Within the limits of this prospective study, it was concluded that the locator system produced superior clinical results compared with the TC and bar attachments in terms of peri-implant hygiene parameters, the frequency of prosthodontic maintenance measures, cost, and ease of denture preparation. However, longer-term prospective studies are required to confirm these results.

  4. Managing risk: clinical decision-making in mental health services.

    Science.gov (United States)

    Muir-Cochrane, Eimear; Gerace, Adam; Mosel, Krista; O'Kane, Debra; Barkway, Patricia; Curren, David; Oster, Candice

    2011-01-01

    Risk assessment and management is a major component of contemporary mental health practice. Risk assessment in health care exists within contemporary perspectives of management and risk aversive practices in health care. This has led to much discussion about the best approach to assessing possible risks posed by people with mental health problems. In addition, researchers and commentators have expressed concern that clinical practice is being dominated by managerial models of risk management at the expense of meeting the patient's health and social care needs. The purpose of the present study is to investigate the risk assessment practices of a multidisciplinary mental health service. Findings indicate that mental health professionals draw on both managerial and therapeutic approaches to risk management, integrating these approaches into their clinical practice. Rather than being dominated by managerial concerns regarding risk, the participants demonstrate professional autonomy and concern for the needs of their clients.

  5. Clinical genomics in the world of the electronic health record.

    Science.gov (United States)

    Marsolo, Keith; Spooner, S Andrew

    2013-10-01

    The widespread adoption of electronic health records presents a number of benefits to the field of clinical genomics. They include the ability to return results to the practitioner, to use genetic findings in clinical decision support, and to have data collected in the electronic health record that serve as a source of phenotypic information for analysis purposes. Not all electronic health records are created equal, however. They differ in their features, capabilities, and ease of use. Therefore, to understand the potential of the electronic health record, it is first necessary to understand its capabilities and the impact that implementation strategy has on usability. Specifically, we focus on the following areas: (i) how the electronic health record is used to capture data in clinical practice settings; (ii) how the implementation and configuration of the electronic health record affect the quality and availability of data; (iii) the management of clinical genetic test results and the feasibility of electronic health record integration; and (iv) the challenges of implementing an electronic health record in a research-intensive environment. This is followed by a discussion of the minimum functional requirements that an electronic health record must meet to enable the satisfactory integration of genomic results as well as the open issues that remain.

  6. Health literacy and usability of clinical trial search engines.

    Science.gov (United States)

    Utami, Dina; Bickmore, Timothy W; Barry, Barbara; Paasche-Orlow, Michael K

    2014-01-01

    Several web-based search engines have been developed to assist individuals to find clinical trials for which they may be interested in volunteering. However, these search engines may be difficult for individuals with low health and computer literacy to navigate. The authors present findings from a usability evaluation of clinical trial search tools with 41 participants across the health and computer literacy spectrum. The study consisted of 3 parts: (a) a usability study of an existing web-based clinical trial search tool; (b) a usability study of a keyword-based clinical trial search tool; and (c) an exploratory study investigating users' information needs when deciding among 2 or more candidate clinical trials. From the first 2 studies, the authors found that users with low health literacy have difficulty forming queries using keywords and have significantly more difficulty using a standard web-based clinical trial search tool compared with users with adequate health literacy. From the third study, the authors identified the search factors most important to individuals searching for clinical trials and how these varied by health literacy level.

  7. An electronic health record for infertility clinics | Coetsee | South ...

    African Journals Online (AJOL)

    Objective. To design a user-friendly electronic health record system for infertility clinics (EHRIC) to capture quality data that will allow advanced audit and practice analysis, and to use the captured data for the South African Register of Assisted Reproductive Techniques (SARA) database and as a clinical research function.

  8. Clinical trial registration in oral health journals.

    Science.gov (United States)

    Smaïl-Faugeron, V; Fron-Chabouis, H; Durieux, P

    2015-03-01

    Prospective registration of randomized controlled trials (RCTs) represents the best solution to reporting bias. The extent to which oral health journals have endorsed and complied with RCT registration is unknown. We identified journals publishing RCTs in dentistry, oral surgery, and medicine in the Journal Citation Reports. We classified journals into 3 groups: journals requiring or recommending trial registration, journals referring indirectly to registration, and journals providing no reference to registration. For the 5 journals with the highest 2012 impact factors in each group, we assessed whether RCTs with results published in 2013 had been registered. Of 78 journals examined, 32 (41%) required or recommended trial registration, 19 (24%) referred indirectly to registration, and 27 (35%) provided no reference to registration. We identified 317 RCTs with results published in the 15 selected journals in 2013. Overall, 73 (23%) were registered in a trial registry. Among those, 91% were registered retrospectively and 32% did not report trial registration in the published article. The proportion of trials registered was not significantly associated with editorial policies: 29% with results in journals that required or recommended registration, 15% in those that referred indirectly to registration, and 21% in those providing no reference to registration (P = 0.05). Less than one-quarter of RCTs with results published in a sample of oral health journals were registered with a public registry. Improvements are needed with respect to how journals inform and require their authors to register their trials. © International & American Associations for Dental Research.

  9. Clinical, classroom, or personal education: attitudes about health literacy.

    Science.gov (United States)

    Logan, Robert A

    2007-04-01

    This study explores how diverse attitudes about health literacy are assessed by medical librarians and other health care professionals. An online survey of thirty-six items was conducted using Q methodology in two phases in spring 2005 and winter 2006. Respondents (n = 51) were nonrandomly self-selected from a convenience sample of members of the Medical Library Association and a group of environmental health consultants to the National Library of Medicine. Three factors were identified. Factor 1 is optimistic and supportive of health literacy's transformative sociocultural and professional potential, if clinical settings become a launching point for health literacy activities. Factor 2 is less optimistic about health literacy's potential to improve clinical or patient outcomes and prefers to focus health literacy initiatives on classroom education settings. Factor 3 supports improving the nation's health literacy but tends to support health literacy initiatives when people privately interact with health information materials. Each factor's attitudes about the appropriate educational venue to initiate health literacy activities are different and somewhat mutually exclusive. This suggests that health literacy is seen through different perceptual frameworks that represent a possible source of professional disagreement.

  10. Clinical investigations for SUS, the Brazilian public health system

    Directory of Open Access Journals (Sweden)

    Ana Patrícia de Paula

    Full Text Available CONTEXT AND OBJECTIVE: Scientific and technological development is crucial for advancing the Brazilian health system and for promoting quality of life. The way in which the Brazilian Ministry of Health has supported clinical research to provide autonomy, self-sufficiency, competitiveness and innovation for the healthcare industrial production complex, in accordance with the National Policy on Science, Technology and Innovation in Healthcare, was analyzed. DESIGN AND SETTING: Descriptive investigation, based on secondary data, conducted at the Department of Science and Technology, Ministry of Health. METHODS: The Ministry of Health's research management database, PesquisaSaúde, was analyzed from 2002 to 2009, using the key word "clinical research" in the fields "primary sub-agenda" or "secondary sub-agenda". The 368 projects retrieved were sorted into six categories: basic biomedical research, preclinical studies, expanded clinical research, clinical trials, infrastructure support and health technology assessment. From a structured review on "clinical research funding", results from selected countries are presented and discussed. RESULTS: The amount invested was R$ 140 million. The largest number of projects supported "basic biomedical research", while the highest amounts invested were in "clinical trials" and "infrastructure support". The southeastern region had the greatest proportion of projects and financial resources. In some respects, Brazil is ahead of other BRICS countries (Russia, India, China and South Africa, especially with regard to establishing a National Clinical Research Network. CONCLUSION: The Ministry of Health ensured investments to encourage clinical research in Brazil and contributed towards promoting cohesion between investigators, health policies and the healthcare industrial production complex.

  11. Strategies for Improving Nursing Students' Mental Health Clinical Rotation.

    Science.gov (United States)

    Kroning, Maureen

    2016-01-01

    Mental illness is a huge problem many people face in the U.S. and around the world. The American Psychiatric Nurses Association indicates there is a shortage of nurses in every level and role in psychiatric-mental health nursing. Raising up a generation of nurses who want to work with the mentally ill is a challenge for nurse educators. The use of role playing and simulation in the learning lab prior to entering the clinical setting and reflective journaling in the clinical rotation can improve undergraduate nursing students' mental health clinical experience.

  12. Early Loading of Fluoridated Implants Placed in Fresh Extraction Sockets and Healed Bone: A 3- to 5-Year Clinical and Radiographic Follow-Up Study of 39 Consecutive Patients.

    Science.gov (United States)

    Oxby, Gert; Oxby, Fredrik; Oxby, Johan; Saltvik, Tomas; Nilsson, Peter

    2015-10-01

    Immediate placement of implants in extraction sockets for early loading is an attractive treatment modality due to reduced treatment time. However, the outcome of fluoridated implants in this situation with regard to bone levels and health of soft tissues is not well documented. To evaluate the outcome of early loading of OsseoSpeed(™) dental implants placed into fresh extraction sockets and healed bone in consecutive patients treated in a private clinic. A total of 182 OsseoSpeed(™) implants (Astra Tech Implant System, DENTSPLY Implants, Mölndal, Sweden), 72 in immediate extraction sockets and 110 in healed sites, were placed in 39 consecutive patients. The implants were loaded with permanent restorations within 60 days (average 31 days). Clinical and radiographic follow-up examinations were performed annually for at least 3 years (mean 55 months). An aesthetic index was used to evaluate the soft tissues adjacent to the prosthetic restorations. No implant was lost during the observation period, giving a survival rate of 100%. Bone level changes during the observation period were minimal, with a mean marginal bone loss of 0.3 ± 0.9 mm around the delayed implants and a mean marginal bone gain of 0.3 ± 1.4 mm around the immediate implants (p = .0036). The frequency distribution of bone level revealed that 85% of implants placed in fresh extraction sockets and 84% of implants in healed bone did not show any loss of bone level during follow-up (p = NS). Soft tissue complications were observed at two immediate implant sites in one patient. The remaining 180 implants received the highest aesthetic score. Moreover, no signs of peri-implant purulent infection or aggressive bone loss were found during the follow-up period. Early loading of fluoridated implants with permanent constructions appears to be a viable therapy for implants placed immediately in extraction sites and in healed bone. © 2014 Wiley Periodicals, Inc.

  13. Evaluation of four designs of short implants placed in atrophic areas with reduced bone height: a three-year, retrospective, clinical and radiographic study.

    Science.gov (United States)

    Lopez Torres, J A; Gehrke, S A; Calvo Guirado, J L; Aristazábal, L F R

    2017-09-01

    The aim of the present study was to evaluate retrospectively the clinical and radiographic behaviour of four commercially-available short implants with different macrodesigns and microdesigns in areas in which the height of the bone was reduced. We took into account the success and survival, peri-implant crestal bone loss, and the level of probing at which the gum bled. Patients were included if they had been given one or more short implants (≤8.5mm long) in the posterior jaws at least three years earlier. Three hundred and ninety-one short implants were placed in 170 subjects, and were divided in four groups based on the brand of implant. The implants were evaluated one, two, and three years after they had been inserted. Short implants had a three-year survival and success rate of 90% in all groups, and bone loss was acceptable after three years with no significant differences between them. These results support the use of short implants as an effective and safe treatment. However, within the limitations of this study, the design of the implant does seem to influence the behaviour of peri-implant bone at the crestal level. Copyright © 2017. Published by Elsevier Ltd.

  14. A 5- to 8-year retrospective study comparing the clinical results of implant-supported telescopic crown versus bar overdentures in patients with edentulous maxillae.

    Science.gov (United States)

    Zou, Duohong; Wu, Yiqun; Huang, Wei; Zhang, Zhiyong; Zhang, Zhiyuan

    2013-01-01

    The objective of this study was to compare implant survival and success rates, peri-implant parameters, and prosthodontic maintenance efforts for implant-supported telescopic crown overdentures and bar overdentures to restore maxillary edentulism. This retrospective clinical study involved patients with maxillary edentulism who were fitted with implant-supported overdentures from January 2004 to June 2007. During a 5- to 8-year follow-up period, the implant survival and success rates, biologic and mechanical complications, prosthodontic maintenance, and patient satisfaction were retrospectively analyzed. The data were evaluated statistically and P overdentures. Twenty-one patients chose telescopic crown overdentures and 23 patients chose bar overdentures. A total of 41 patients and 201 implants were available for follow-up. The implant survival and success rates, average bone resorption, and subjective patient satisfaction scores showed no difference between the telescopic crown and the bar overdenture group at follow-up. However, there were higher values for Plaque and Calculus Indexes in the bar group compared with the telescopic crown group, and these values showed a statistically significant difference annually from the 3-year follow-up (P overdentures provided a healthy peri-implant structure for implants in both groups. Implant-supported telescopic crown or bar overdentures can provide a good treatment option for patients with edentulous maxillae.

  15. Collaborative learning of clinical skills in health professions education

    DEFF Research Database (Denmark)

    Tolsgaard, Martin G.; Kulasegaram, Kulamakan M.; Ringsted, Charlotte V

    2016-01-01

    Objectives: This study is designed to provide an overview of why, how, when and for whom collaborative learning of clinical skills may work in health professions education. Why: Collaborative learning of clinical skills may influence learning positively according to the non-medical literature...... suggests that learning is dependent on cognitive co-construction, shared knowledge and reduced cognitive load. When and for whom: The literature on the collaborative learning of clinical skills in health science education is reviewed to support or contradict the hypotheses provided by the theories outlined...... above. Collaborative learning of clinical skills leads to improvements in self-efficacy, confidence and performance when task processing is observable or communicable. However, the effects of collaborative learning of clinical skills may decrease over time as benefits in terms of shared cognition...

  16. Characteristics of Health Educators Desired by Inner-City Health Clinic Patients: A Case Study

    Science.gov (United States)

    Price, James; Sidani, Jaime

    2007-01-01

    A group (n = 170) of inner-city, predominantly African American, health clinic patients were asked to identify the characteristics they desired in a new clinic health educator. A plurality (44%) of the patients perceived a bachelor's degree would be a sufficient level of education. The vast majority of patients claimed the sex of the health…

  17. Mayo Clinic Care Network: A Collaborative Health Care Model.

    Science.gov (United States)

    Wald, John T; Lowery-Schrandt, Sherri; Hayes, David L; Kotsenas, Amy L

    2018-01-01

    By leveraging its experience and expertise as a consultative clinical partner, the Mayo Clinic developed an innovative, scalable care model to accomplish several strategic goals: (1) create and sustain high-value relationships that benefit patients and providers, (2) foster relationships with like-minded partners to act as a strategy against the development of narrow health care networks, and (3) increase national and international brand awareness of Mayo Clinic. The result was the Mayo Clinic Care Network. Copyright © 2017 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  18. Cost analysis of public health influenza vaccine clinics in Ontario.

    Science.gov (United States)

    Mercer, Nicola J

    2009-01-01

    Public health in Ontario delivers, promotes and provides each fall the universal influenza immunization program. This paper addresses the question of whether Ontario public health agencies are able to provide the influenza immunization program within the Ministry of Health fiscal funding envelope of $5 per dose. Actual program delivery data from the 2006 influenza season of Wellington-Dufferin-Guelph Public Health (WDGPH) were used to create a model template for influenza clinics capturing all variable costs. Promotional and administrative costs were separated from clinic costs. Maximum staff workloads were estimated. Vaccine clinics were delivered by public health staff in accordance with standard vaccine administration practices. The most significant economic variables for influenza clinics are labour costs and number of vaccines given per nurse per hour. The cost of facility rental was the only other significant cost driver. The ability of influenza clinics to break even depended on the ability to manage these cost drivers. At WDGPH, weekday flu clinics required the number of vaccines per nurse per hour to exceed 15, and for weekend flu clinics this number was greater than 21. We estimate that 20 vaccines per hour is at the limit of a safe workload over several hours. Managing cost then depends on minimizing hourly labour costs. The results of this analysis suggest that by managing the labour costs along with planning the volume of patients and avoiding expensive facilities, flu clinics can just break even. However, any increased costs, including negotiated wage increases or the move to safety needles, with a fixed revenue of $5.00 per dose will negate this conclusion.

  19. Health claims on foods: challenge for clinical research companies

    Directory of Open Access Journals (Sweden)

    Essi Sarkkinen

    2012-06-01

    Full Text Available Background The Nutrition and Health Claim Regulation 1924/2006/EC, together with EFSA guidances on the scientific requirements for different type of health claims, is setting the basis for health claim substantiation in the EU. Aim The aim of this presentation is to bring up the key challenges that the food industry and clinical research organizations are facing when meeting these requirements. Results and discussion Key issues in clinical research planning to meet the requirements set for the health claim substantiation are: (1 Selection of right outcome markers since the selection of outcome marker defines actually the formulation of the health claim to be used on food or food ingredient. (2 Selection of right target population since that determines the target consumer group for the food with a health claim. (3 Selection of dose regime and food matrices used since these largely determine the conditions set for the use of the health claim. One of the major challenges in health claim substantiation is the deviant approach to risk factors or biomarkers. From the regulation point of view, a single risk factor approach is emphasized, but from the clinical and scientific point of view the pattern of different risk markers or biomarkers could, in some cases, be a more relevant choice to reflect the final health outcome. This is especially the case in the nutrition and health area because we are often dealing with weak but multiple health effects of certain food items or ingredients. Also the lack of validated well-established biomarkers potent to be affected by diet is a challenge in health claim substantiation.The selection of right target population is often a compromise between choosing a more potential target group to obtain efficacy (i.e. risk factors elevated vs. patient groups and choosing a rationale to generalize the results to wider population (target consumer group.The selection of optimal dosing regime and matrices for a clinical study is

  20. Employee Health in the Mental Health Workplace: Clinical, Administrative, and Organizational Perspectives.

    Science.gov (United States)

    Shah, Jai L; Kapoor, Reena; Cole, Robert; Steiner, Jeanne L

    2016-04-01

    Issues of mental health and employee health have risen to increasing prominence in recent years. However, there have been few explorations of the clinical and administrative challenges that these issues raise, particularly in settings that are themselves mental health workplaces. In order to identify and understand such challenges, a brief case of acute employee illness in a mental health workplace is described followed by a discussion of salient clinical, administrative, and organizational considerations. The case raises questions about medicolegal responsibilities and relationships between clinicians and patients in mental health settings, illuminates tensions between clinical staff and human resources processes, and draws attention to the need for illness prevention and mental health promotion initiatives in the workplace. Increased awareness of these issues, complications, and potential solutions would benefit clinicians, administrators, and mental health institutions.

  1. Support for Offering Sexual Health Services through School-Based Health Clinics

    Science.gov (United States)

    Moore, Michele Johnson; Barr, Elissa; Wilson, Kristina; Griner, Stacey

    2016-01-01

    Background: Numerous studies document support for sexuality education in the schools. However, there is a dearth of research assessing support for sexual health services offered through school-based health clinics (SBHCs). The purpose of this study was to assess voter support for offering 3 sexual health services (STI/HIV testing, STI/HIV…

  2. Whole genome sequencing in clinical and public health microbiology.

    Science.gov (United States)

    Kwong, J C; McCallum, N; Sintchenko, V; Howden, B P

    2015-04-01

    Genomics and whole genome sequencing (WGS) have the capacity to greatly enhance knowledge and understanding of infectious diseases and clinical microbiology.The growth and availability of bench-top WGS analysers has facilitated the feasibility of genomics in clinical and public health microbiology.Given current resource and infrastructure limitations, WGS is most applicable to use in public health laboratories, reference laboratories, and hospital infection control-affiliated laboratories.As WGS represents the pinnacle for strain characterisation and epidemiological analyses, it is likely to replace traditional typing methods, resistance gene detection and other sequence-based investigations (e.g., 16S rDNA PCR) in the near future.Although genomic technologies are rapidly evolving, widespread implementation in clinical and public health microbiology laboratories is limited by the need for effective semi-automated pipelines, standardised quality control and data interpretation, bioinformatics expertise, and infrastructure.

  3. Machine learning methods for clinical forms analysis in mental health.

    Science.gov (United States)

    Strauss, John; Peguero, Arturo Martinez; Hirst, Graeme

    2013-01-01

    In preparation for a clinical information system implementation, the Centre for Addiction and Mental Health (CAMH) Clinical Information Transformation project completed multiple preparation steps. An automated process was desired to supplement the onerous task of manual analysis of clinical forms. We used natural language processing (NLP) and machine learning (ML) methods for a series of 266 separate clinical forms. For the investigation, documents were represented by feature vectors. We used four ML algorithms for our examination of the forms: cluster analysis, k-nearest neigh-bours (kNN), decision trees and support vector machines (SVM). Parameters for each algorithm were optimized. SVM had the best performance with a precision of 64.6%. Though we did not find any method sufficiently accurate for practical use, to our knowledge this approach to forms has not been used previously in mental health.

  4. Federally qualified health center dental clinics: financial information.

    Science.gov (United States)

    Bailit, Howard L; Devitto, Judy; Myne-Joslin, Ronnie; Beazoglou, Tryfon; McGowan, Taegan

    2013-01-01

    Federally Qualified Health Center (FQHC) dental clinics are a major component of the dental safety net system, providing care to 3.75 million patients annually. This study describes the financial and clinical operations of a sample of FQHCs. In cooperation with the National Network for Oral Health Access, FQHC dental clinics that could provide 12 months of electronic dental record information were asked to participate in the study. Based on data from 28 dental clinics (14 FQHCs), 50 percent of patients were under 21 years of age. The primary payers were Medicaid (72.4 percent) and sliding-scale/self-pay patients (17.5 percent). Sites averaged 3.1 operatories, 0.66 dental hygienists, and 1.9 other staff per dentist. Annually, each FTE dentist and hygienist provided 2,801 and 2,073 patient visits, respectively. Eighty percent of services were diagnostic, preventive, and restorative. Patient care accounted for 82 percent of revenues, and personnel (64.2 percent) and central administration (13.4 percent) accounted for most expenses. Based on a small convenience sample of FQHC dental clinics, this study presents descriptive data on their clinical and financial operations. Compared with data from the UDS (Uniform Data System) report, study FQHCs were larger in terms of space, staff, and patients served. However, there was substantial variation among clinics for almost all measures. As the number and size of FQHC dental clinics increase, the Health Resources and Services Administration needs to provide them access to comparative data that they can use to benchmark their operations. © 2013 American Association of Public Health Dentistry.

  5. Emerging uses of patient generated health data in clinical research.

    Science.gov (United States)

    Wood, William A; Bennett, Antonia V; Basch, Ethan

    2015-05-01

    Recent advancements in consumer directed personal computing technology have led to the generation of biomedically-relevant data streams with potential health applications. This has catalyzed international interest in Patient Generated Health Data (PGHD), defined as "health-related data - including health history, symptoms, biometric data, treatment history, lifestyle choices, and other information-created, recorded, gathered, or inferred by or from patients or their designees (i.e. care partners or those who assist them) to help address a health concern."(Shapiro et al., 2012) PGHD offers several opportunities to improve the efficiency and output of clinical trials, particularly within oncology. These range from using PGHD to understand mechanisms of action of therapeutic strategies, to understanding and predicting treatment-related toxicity, to designing interventions to improve adherence and clinical outcomes. To facilitate the optimal use of PGHD, methodological research around considerations related to feasibility, validation, measure selection, and modeling of PGHD streams is needed. With successful integration, PGHD can catalyze the application of "big data" to cancer clinical research, creating both "n of 1" and population-level observations, and generating new insights into the nature of health and disease. Copyright © 2014 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

  6. Clinical Application of the PES/WES Index on Natural Teeth: Case Report and Literature Review

    Directory of Open Access Journals (Sweden)

    Alessandro Lanza

    2017-01-01

    Full Text Available The use of reliable indices to evaluate the aesthetic outcomes in the aesthetic area is an important and objective clinical aid to monitor the results over time. According to the literature various indices were proposed to evaluate aesthetic outcomes of implant-prosthetic rehabilitation of the anterior area like Peri-Implant and Crown Index [PICI], Implant Crown Aesthetic Index [ICAI], Pink Esthetic Score/White Esthetic Score [PES/WES], and Pink Esthetic Score [PES] but none of them was related to prosthetic rehabilitation on natural teeth. The aim of this study is to verify the validity of PES/WES index for natural tooth-prosthetic rehabilitation of the anterior area. As secondary objective, we proposed to evaluate the long-term predictability of this clinical application, one of which is presented below, following the analysis of the most currently accepted literature.

  7. Clinical quality performance in U.S. health centers.

    Science.gov (United States)

    Shi, Leiyu; Lebrun, Lydie A; Zhu, Jinsheng; Hayashi, Arthur S; Sharma, Ravi; Daly, Charles A; Sripipatana, Alek; Ngo-Metzger, Quyen

    2012-12-01

    To describe current clinical quality among the nation's community health centers and to examine health center characteristics associated with performance excellence. National data from the 2009 Uniform Data System. Health centers reviewed patient records and reported aggregate data to the Uniform Data System. Six measures were examined: first-trimester prenatal care, childhood immunization completion, Pap tests, low birth weight, controlled hypertension, and controlled diabetes. The top 25 percent performing centers were compared with lower performing (bottom 75 percent) centers on these measures. Logistic regressions were utilized to assess the impact of patient, provider, and institutional characteristics on health center performance. Clinical care and outcomes among health centers were generally comparable to national averages. For instance, 67 percent of pregnant patients received timely prenatal care (national = 68 percent), 69 percent of children achieved immunization completion (national = 67 percent), and 63 percent of hypertensive patients had blood pressure under control (national = 48 percent). Depending on the measure, centers with more uninsured patients were less likely to do well, while centers with more physicians and enabling service providers were more likely to do well. Health centers provide quality care at rates comparable to national averages. Performance may be improved by increasing insurance coverage among patients and increasing the ratios of physicians and enabling service providers to patients. © Health Research and Educational Trust.

  8. Integrative Mental Health (IMH): paradigm, research, and clinical practice.

    Science.gov (United States)

    Lake, James; Helgason, Chanel; Sarris, Jerome

    2012-01-01

    This paper provides an overview of the rapidly evolving paradigm of "Integrative Mental Health (IMH)." The paradigm of contemporary biomedical psychiatry and its contrast to non-allopathic systems of medicine is initially reviewed, followed by an exploration of the emerging paradigm of IMH, which aims to reconcile the bio-psycho-socio-spiritual model with evidence-based methods from traditional healing practices. IMH is rapidly transforming conventional understandings of mental illness and has significant positive implications for the day-to-day practice of mental health care. IMH incorporates mainstream interventions such as pharmacologic treatments, psychotherapy, and psychosocial interventions, as well as alternative therapies such as acupuncture, herbal and nutritional medicine, dietary modification, meditation, etc. Two recent international conferences in Europe and the United States show that interest in integrative mental health care is growing rapidly. In response, the International Network of Integrative Mental Health (INIMH: www.INIMH.org) was established in 2010 with the objective of creating an international network of clinicians, researchers, and public health advocates to advance a global agenda for research, education, and clinical practice of evidence-based integrative mental health care. The paper concludes with a discussion of emerging opportunities for research in IMH, and an exploration of potential clinical applications of integrative mental health care. Copyright © 2012 Elsevier Inc. All rights reserved.

  9. Public health importance of lassa fever epidemiology, clinical ...

    African Journals Online (AJOL)

    The public health importance of Lassa fever can not be over emphasized if one considers the high infectivity and mortality rates associated with the disease. This study dealt extensively on the epidemiology, clinical features and current management of Lassa fever through literature review. The aim of this study is to sensitise ...

  10. Rigorous Clinical Trial Design in Public Health Emergencies Is Essential

    DEFF Research Database (Denmark)

    Ellenberg, Susan S; Keusch, Gerald T; Babiker, Abdel G

    2018-01-01

    Randomized clinical trials are the most reliable approaches to evaluating the effects of new treatments and vaccines. During the 2014-15 West African Ebola epidemic, many argued that such trials were neither ethical nor feasible in an environment of limited health infrastructure and severe disease...

  11. Using Clinical Decision Support Software in Health Insurance Company

    Science.gov (United States)

    Konovalov, R.; Kumlander, Deniss

    This paper proposes the idea to use Clinical Decision Support software in Health Insurance Company as a tool to reduce the expenses related to Medication Errors. As a prove that this class of software will help insurance companies reducing the expenses, the research was conducted in eight hospitals in United Arab Emirates to analyze the amount of preventable common Medication Errors in drug prescription.

  12. Teaching clinical reasoning by making thinking visible: an action research project with allied health clinical educators.

    Science.gov (United States)

    Delany, Clare; Golding, Clinton

    2014-01-30

    Clinical reasoning is fundamental to all forms of professional health practice, however it is also difficult to teach and learn because it is complex, tacit, and effectively invisible for students. In this paper we present an approach for teaching clinical reasoning based on making expert thinking visible and accessible to students. Twenty-one experienced allied health clinical educators from three tertiary Australian hospitals attended up to seven action research discussion sessions, where they developed a tentative heuristic of their own clinical reasoning, trialled it with students, evaluated if it helped their students to reason clinically, and then refined it so the heuristic was targeted to developing each student's reasoning skills. Data included participants' written descriptions of the thinking routines they developed and trialed with their students and the transcribed action research discussion sessions. Content analysis was used to summarise this data and categorise themes about teaching and learning clinical reasoning. Two overriding themes emerged from participants' reports about using the 'making thinking visible approach'. The first was a specific focus by participating educators on students' understanding of the reasoning process and the second was heightened awareness of personal teaching styles and approaches to teaching clinical reasoning. We suggest that the making thinking visible approach has potential to assist educators to become more reflective about their clinical reasoning teaching and acts as a scaffold to assist them to articulate their own expert reasoning and for students to access and use.

  13. Self-Esteem, Oral Health Behaviours, and Clinical Oral Health Status in Chinese Adults: An Exploratory Study

    Science.gov (United States)

    Chin, Luzy Siu-Hei; Chan, Joanne Chung-Yan

    2013-01-01

    Objectives: This is an exploratory study to examine the relations among self-esteem, oral health behaviours and clinical oral health status in Chinese adults. In addition, gender differences in clinical oral health status and oral health behaviours were explored. Methods: Participants were 192 patients from a private dental clinic in Hong Kong…

  14. Effects of dry period length on clinical mastitis and other major clinical health disorders

    DEFF Research Database (Denmark)

    Enevoldsen, Carsten; Sørensen, J.T.

    1992-01-01

    Four, 7-, and 10-wk dry periods were randomly assigned to 366 dairy cows in eight herds. A multiple polytomous logistic regression analysis was conducted with the objective to reveal possible important effects of the dry period on the risk of contracting major clinical health disorders. Several...... complex statistical interactions were revealed. Complications around and after drying off occurred least frequently at 7-wk dry periods. There was little evidence of an effect of the dry period on the risk of clinical mastitis and other severe clinical disorders around and after calving. With short...... like milk yield at drying off and previous mastitis are much more important predisposing factors....

  15. The normativity of clinical health care: perspectives on moral realism.

    Science.gov (United States)

    Nortvedt, Per

    2012-06-01

    The paper argues that a particular version of moral realism constitutes an important basis for ethics in medicine and health care. Moral realism is the position that moral value is a part of the fabric of relational and interpersonal reality. But even though moral values are subject to human interpretations, they are not themselves the sole product of these interpretations. Moral values are not invented but discovered by the subject. Moral realism argues that values are open to perception and experience and that moral subjectivity must be portrayed in how moral values are discovered and perceived by the human subject. Moral values may exist independent of the particular subject's interpretative evaluations as a part of reality. This epistemological point about normativity is particularly significant in medical care and in health care. The clinician perceives moral value in the clinical encounter in a way that is important for competent clinical understanding. Clinical understanding in medical care and health care bears on the encounter with moral values in the direct and embodied relations to patients, with their experiences of illness and their vulnerabilities. Good clinical care is then partly conditioned upon adequate understanding of such moral realities.

  16. Precautions used by occupational health nursing students during clinical placements

    Directory of Open Access Journals (Sweden)

    T.M.M. Maja

    2009-09-01

    Full Text Available Protection of health care workers including students from being infected when caring for high risk patients is a major cause for concern to all promoting occupational health. Safety of every employee is mandatory. Furthermore, universal guidelines for precautions must be used by all interacting with high risk patients and clients to protect themselves and prevent the spread of infection. The aim of this paper was to ascertain the availability of universal guidelines for precautions against the spread of infection in clinical settings and determine the precautions used by OHN students during their clinical placements. To realise these objectives, a quantitative and descriptive design was followed. A purposive sampling method was used to select 45 Occupational health nursing students who participated in the study. Data was collected with the use of a structured questionnaire and the results revealed that: most units where OHN students were placed for clinical experience had guidelines for universal precautions although these were not always accessible to them; regarding compliance to universal precautions, OHN students were reportedly aware of the hazards of failure to comply although in some emergencies and where personal protective material was not available, they had to provide care without using protective equipments. Recommendations made include that employers and staff at all occupational settings must ensure that updated guidelines for universal precautions are available and accessible to every body interacting with high risk patients; health care providers and students must be fully informed about and should always adhere to universal precautions.

  17. Health profiles of foreigners attending primary care clinics in Malaysia.

    Science.gov (United States)

    Ab Rahman, Norazida; Sivasampu, Sheamini; Mohamad Noh, Kamaliah; Khoo, Ee Ming

    2016-06-14

    The world population has become more globalised with increasing number of people residing in another country for work or other reasons. Little is known about the health profiles of foreign population in Malaysia. The aim of this study was to provide a detailed description of the health problems presented by foreigners attending primary care clinics in Malaysia. Data were derived from the 2012 National Medical Care Survey (NMCS), a cross sectional survey of primary care encounters from public and private primary care clinics sampled from five regions in Malaysia. Patients with foreign nationality were identified and analysed for demographic profiles, reasons for encounter (RFEs), diagnosis, and provision of care. Foreigners accounted for 7.7 % (10,830) of all patient encounters from NMCS. Most encounters were from private clinics (90.2 %). Median age was 28 years (IQR: 24.0, 34.8) and 69.9 % were male. Most visits to the primary care clinics were for symptom-based complaints (69.5 %), followed by procedures (23.0 %) and follow-up visit (7.4 %). The commonest diagnosis in public clinics was antenatal care (21.8 %), followed by high risk pregnancies (7.5 %) and upper respiratory tract infection (URTI) (6.8 %). Private clinics had more cases for general medical examination (13.5 %), URTI (13.1 %) and fever (3.9 %). Medications were prescribed to 76.5 % of these encounters. More foreigners were seeking primary medical care from private clinics and the encounters were for general medical examinations and acute minor ailments. Those who sought care from public clinics were for obstetric problems and chronic diseases. Medications were prescribed to two-thirds of the encounters while other interventions: laboratory investigations, medical procedures and follow-up appointment had lower rates in private clinics. Foreigners are generally of young working group and are expected to have mandatory medical checks. The preponderance of obstetrics seen in public

  18. Health information technology: integration of clinical workflow into meaningful use of electronic health records.

    Science.gov (United States)

    Bowens, Felicia M; Frye, Patricia A; Jones, Warren A

    2010-10-01

    This article examines the role that clinical workflow plays in successful implementation and meaningful use of electronic health record (EHR) technology in ambulatory care. The benefits and barriers of implementing EHRs in ambulatory care settings are discussed. The researchers conclude that widespread adoption and meaningful use of EHR technology rely on the successful integration of health information technology (HIT) into clinical workflow. Without successful integration of HIT into clinical workflow, clinicians in today's ambulatory care settings will continue to resist adoption and implementation of EHR technology.

  19. Implementation of an Electronic Health Records System in a Small Clinic: The Viewpoint of Clinic Staff

    Science.gov (United States)

    Carayon, Pascale; Smith, Paul; Hundt, Ann Schoofs; Kuruchittham, Vipat; Li, Qian

    2009-01-01

    In this study, we examined the implementation of an electronic health records (EHR) system in a small family practice clinic. We used three data collection instruments to evaluate user experience, work pattern changes, and organisational changes related to the implementation and use of the EHR system: (1) an EHR user survey, (2) interviews with…

  20. Adolescent health care maintenance in a teen-friendly clinic.

    Science.gov (United States)

    Chaisson, Nicole; Shore, William B

    2014-09-01

    Adolescence is marked by complex physical, cognitive, social, and emotional development, which can be stressful for families and adolescents. Before the onset of puberty, providers should clearly lay the groundwork for clinical care and office visits during the adolescent years. This article addresses the guidelines and current legal standards for confidentiality in adolescent care, the most frequently used psychosocial screening tools, and current recommendations for preventive health services and immunizations. Through the creation of teen-friendly clinics, primary care providers are well positioned to offer guidance and support to teens and their parents during this time of transition and growth. Copyright © 2014 Elsevier Inc. All rights reserved.

  1. Developing a manual for strengthening mental health nurses' clinical supervision

    DEFF Research Database (Denmark)

    Buus, Niels; Cassedy, Paul; Gonge, Henrik

    2013-01-01

    In this article, we report findings from a study aimed at developing the content and implementation of a manual for a research-based intervention on clinical supervision of mental health nursing staff. The intervention was designed to strengthen already existing supervision practices through...... educational preparation for supervision and systematic reflection on supervision. The intervention consists of three sessions and was implemented on two groups of mental health hospital staff. We present an outline of the manual and explain how the trial sessions made us adjust the preliminary manual....... The effects of implementing the manual will subsequently be analysed in an independent randomised controlled trial....

  2. CLINICAL PSYCHOLOGY – ACTUAL DIRECTION IN GROUNDING OF HEALTH MANPOWER

    Directory of Open Access Journals (Sweden)

    M.G. Kucherov

    2007-09-01

    Full Text Available In 90-ies years of last century in our country happened the crash of the system of values with transition to the standards of capitalistic society, and it lead to the formation of chronicle psychosocial stress of high and medium levels. Medics of all directions started to face functional psychosomatic diseases. Raised the necessity in grounding of health manpower in discipline of clinical psychology, with the learning of psychophisiological bases of diseases and possibilities if their correction. This direction of development of soviet medical education and health service in general seems progressive and prospective.

  3. The Union Health Center: a working model of clinical care linked to preventive occupational health services.

    Science.gov (United States)

    Herbert, R; Plattus, B; Kellogg, L; Luo, J; Marcus, M; Mascolo, A; Landrigan, P J

    1997-03-01

    As health care provision in the United States shifts to primary care settings, it is vital that new models of occupational health services be developed that link clinical care to prevention. The model program described in this paper was developed at the Union Health Center (UHC), a comprehensive health care center supported by the International Ladies Garment Workers Union (now the Union of Needletrades, Industrial and Textile Employees) serving a population of approximately 50,000 primarily minority, female garment workers in New York City. The objective of this paper is to describe a model occupational medicine program in a union-based comprehensive health center linking accessible clinical care with primary and secondary disease prevention efforts. To assess the presence of symptoms suggestive of occupational disease, a health status questionnaire was administered to female workers attending the UHC for routine health maintenance. Based on the results of this survey, an occupational medicine clinic was developed that integrated direct clinical care with worker and employer education and workplace hazard abatement. To assess the success of this new approach, selected cases of sentinel health events were tracked and a chart review was conducted after 3 years of clinic operation. Prior to initiation of the occupational medicine clinic, 64% (648) of the workers surveyed reported symptoms indicative of occupational illnesses. However, only 42 (4%) reported having been told by a physician that they had an occupational illness and only 4 (.4%) reported having field a workers' compensation claim for an occupational disease. In the occupational medicine clinic established at the UHC, a health and safety specialist acts as a case manager, coordinating worker and employer education as well as workplace hazard abatement focused on disease prevention, ensuring that every case of occupational disease is treated as a potential sentinel health event. As examples of the success

  4. Hard and Soft Tissue Management of a Localized Alveolar Ridge Atrophy with Autogenous Sources and Biomaterials: A Challenging Clinical Case

    Directory of Open Access Journals (Sweden)

    C. Maiorana

    2016-01-01

    Full Text Available Particularly in the premaxillary area, the stability of hard and soft tissues plays a pivotal role in the success of the rehabilitation from both a functional and aesthetic aspect. The present case report describes the clinical management of a localized alveolar ridge atrophy in the area of the upper right canine associated with a thin gingival biotype with a lack of keratinized tissue. An autogenous bone block harvested from the chin associated with heterologous bone particles was used to replace the missing bone, allowing for a prosthetic driven implant placement. Soft tissues deficiency was corrected by means of a combined epithelialized and subepithelial connective tissue graft. The 3-year clinical and radiological follow-up demonstrated symmetric gingival levels of the upper canines, with physiological peri-implant probing depths and bone loss. Thus, the use of autogenous tissues combined with biomaterials might be considered a reliable technique in case of highly aesthetic demanding cases.

  5. Cultural politics and clinical competence in Australian health services.

    Science.gov (United States)

    Manderson, Lenore; Allotey, Pascale

    2003-01-01

    Medical competence is demonstrated in multiple ways in clinical settings, and includes technical competence, both in terms of diagnosis and management, and cultural competence, as demonstrated in communication between providers and clients. In cross-cultural contexts, such communication is complicated by interpersonal communication and the social and cultural context. To illustrate this, we present four case studies that illustrate the themes from interviews with immigrant women and refugees from Middle Eastern and Sahel African backgrounds, conducted as part of a study of their reproductive health. In our analysis, we highlight the limitations of conventional models of communication. We illustrate the need for health providers to appreciate the possible barriers of education, ethnicity, religion and gender that can impede communication, and the need to be mindful of broader structural, institutional and inter-cultural factors that affect the quality of the clinical encounter.

  6. Sleep Health Issues for Children with FASD: Clinical Considerations

    OpenAIRE

    Jan, James E.; Asante, Kwadwo O.; Conry, Julianne L.; Fast, Diane K.; Bax, Martin C. O.; Ipsiroglu, Osman S.; Bredberg, Elizabeth; Loock, Christine A.; Wasdell, Michael B.

    2010-01-01

    This article describes the combined clinical experience of a multidisciplinary group of professionals on the sleep disturbances of children with fetal alcohol spectrum disorders (FASD) focusing on sleep hygiene interventions. Such practical and comprehensive information is not available in the literature. Severe, persistent sleep difficulties are frequently associated with this condition but few health professionals are familiar with both FASD and sleep disorders. The sleep promotion techniqu...

  7. Evidence-based health care: its place within clinical governance.

    Science.gov (United States)

    McSherry, R; Haddock, J

    This article explores the principles of evidence-based practice and its role in achieving quality improvements within the clinical governance framework advocated by the recent White Papers 'The New NHS: Modern, Dependable' (Department of Health (DoH), 1997) and 'A First Class Service: Quality in the New NHS' (DoH, 1998a). Within these White Papers there is an emphasis on improving quality of care, treatment and services through employing the principles of clinical governance. A major feature of clinical governance is guaranteeing quality to the public and the NHS, and ensuring that clinical, managerial and educational practice is based on scientific evidence. This article also examines what evidence-based practice is and what processes are required to promote effective healthcare interventions. The authors also look at how clinical governance relates to other methods/systems involved in clinical effectiveness. Finally, the importance for nurses and other healthcare professionals of familiarizing themselves with the development of critical appraisal skills, and their implications for developing evidence-based practice, is emphasized.

  8. Role of pharmacogenetics in public health and clinical health care: a SWOT analysis.

    Science.gov (United States)

    Kapoor, Ritika; Tan-Koi, Wei Chuen; Teo, Yik-Ying

    2016-12-01

    Pharmacogenomics has been lauded as an important innovation in clinical medicine as a result of advances in genomic science. As one of the cornerstones in precision medicine, the vision to determine the right medication in the right dosage for the right treatment with the use of genetic information has not exactly materialised, and few genetic tests have been implemented as the standard of care in health systems worldwide. Here we review the findings from a SWOT analysis to examine the strengths, weaknesses, opportunities and threats around the role of pharmacogenetics in public health and clinical health care, at the micro, meso and macro levels corresponding to the perspectives of the individuals (scientists, patients and physicians), the health-care institutions and the health systems, respectively.

  9. Clinical working postures of bachelor of oral health students.

    Science.gov (United States)

    Horton, S J; Johnstone, C L; Hutchinson, C M W; Taylor, P A; Wade, K J

    2011-09-01

    To observe and describe the clinical working postures of final-year Bachelor of Oral Health (BOH) students. Pilot observational study. The University of Otago Faculty of Dentistry and School of Physiotherapy. Eight final-year BOH students voluntarily participated in this study, where postural data were collected using a digital video camera during a standard clinical treatment session. The postural data were analysed using 3D Match biomechanical software. Final-year BOH students who work in the seated position are exposed to neck flexion of greater than 35 degrees, together with trunk flexion greater than 20 degrees and bilateral elbow flexion greater than 90 degrees. The findings of this study agree with the findings of previous postural studies of dental professionals. Dental hygiene students, together with their clinical supervisors, need to be aware of the importance of good working posture early in their careers, and pay particular attention to the degree of neck flexion occurring for prolonged periods.

  10. Clinical interdisciplinary health team care: an educational experiment.

    Science.gov (United States)

    Mazur, H; Beeston, J J; Yerxa, E J

    1979-09-01

    With increasing concern for teamwork in clinical practice in health care settings, the need to identify the concepts, methods, and learning processes for improving interdisciplinary team skills is apparent. This paper describes patient-centered, clinical-research-demonstration programs for teams of students, preceptors, and faculty members from six disciplines who provided patient care in a long-term rehabilitation setting. The teams were involved in the theory and practice of team-building, including weekly sessions on leadership styles, communication, group decision-making, and team effectiveness assessment. Objective and subjective measurements were administered throughout the program. The results indicate that task-oriented patient care favors the learning of team skills, especially when all levels of administration support and participate in the processes. Question are raised concerning the effect of clinical teams on the quality of patient care, their cost-effectiveness, and the low priority given to teaching interdisciplinary team skills in professional education.

  11. Computer-assisted self interviewing in sexual health clinics.

    Science.gov (United States)

    Fairley, Christopher K; Sze, Jun Kit; Vodstrcil, Lenka A; Chen, Marcus Y

    2010-11-01

    This review describes the published information on what constitutes the elements of a core sexual history and the use of computer-assisted self interviewing (CASI) within sexually transmitted disease clinics. We searched OVID Medline from 1990 to February 2010 using the terms "computer assisted interviewing" and "sex," and to identify published articles on a core sexual history, we used the term "core sexual history." Since 1990, 3 published articles used a combination of expert consensus, formal clinician surveys, and the Delphi technique to decide on what questions form a core sexual health history. Sexual health histories from 4 countries mostly ask about the sex of the partners, the number of partners (although the time period varies), the types of sex (oral, anal, and vaginal) and condom use, pregnancy intent, and contraceptive methods. Five published studies in the United States, Australia, and the United Kingdom compared CASI with in person interviews in sexually transmitted disease clinics. In general, CASI identified higher risk behavior more commonly than clinician interviews, although there were substantial differences between studies. CASI was found to be highly acceptable and individuals felt it allowed more honest reporting. Currently, there are insufficient data to determine whether CASI results in differences in sexually transmitted infection testing, diagnosis, or treatment or if CASI improves the quality of sexual health care or its efficiency. The potential public health advantages of the widespread use of CASI are discussed.

  12. Clinical contributions to addressing the social determinants of health.

    Science.gov (United States)

    Patel, Kiran C R; Spilsbury, Peter; Shukla, Rashmi

    2010-04-01

    The drive to address social determinants of health is gaining momentum. Appreciating that health outcomes are only partly affected by healthcare, clinicians and clinical communities can play a significant role in this crusade by action at local, regional, national and global levels. A concerted and systematic focus on integrating and industrialising upstream interventions at every healthcare encounter is essential to prevent future illness, thus enabling a paradigm shift in the healthcare service from being one of illness management to health preservation. The evidence base demonstrates the cost efficacy of upstream interventions. The challenge is how this evidence is utilised to implement these interventions in everyday healthcare. Today, with a global economic crisis and challenged public sector funding, the need to address prevention has never been more pressing. Clinical engagement at all levels, from the front line to the boardroom is vital. Clinicians must address access, communication, strategy and commissioning to fulfil a professional responsibility to become and remain the corporate memory of a health service focused on preventing illness while simultaneously delivering cost-effective healthcare.

  13. Evaluation of a pharmacist-managed asthma clinic in an Indian Health Service clinic.

    Science.gov (United States)

    Pett, Ryan G; Nye, Shane

    2016-01-01

    To observe whether American Indian and Alaskan Native (AI/AN) patients at the Yakama Indian Health Service seen at the pharmacist-managed asthma clinic improved asthma outcomes. Retrospective chart review, single group, preintervention and postintervention. Pharmacist-managed asthma clinic at an Indian Health Service ambulatory care clinic. Sixty-one AI/AN patients who were seen at least once in the asthma clinic from 2010 to 2014. Pharmacist-provided asthma education and medication management. Asthma-related hospitalizations and emergency department or urgent care (ED) visits. The total number of asthma-related hospitalizations and ED visits between the 12-month periods preceding and following the initial asthma clinic visit were 11 versus 2 hospitalizations (P = 0.02) and 43 versus 25 ED visits (P = 0.02), respectively. Over the same period, asthma-related oral corticosteroid use showed a nonsignificant decrease in the number of prescriptions filled (n = 59, P = 0.08). In contrast, inhaled corticosteroid prescription fills significantly increased (n = 42, P = 0.01). A reduction of asthma-related hospitalizations and ED visits were observed during the course of the intervention. Increased access to formal asthma education and appropriate asthma care benefit the Yakama AI/AN people. A controlled trial is needed to confirm that the intervention causes the intended effect. Published by Elsevier Inc.

  14. A Comparison of Medical Birth Register Outcomes between Maternity Health Clinics and Integrated Maternity and Child Health Clinics in Southwest Finland.

    Science.gov (United States)

    Tuominen, Miia; Kaljonen, Anne; Ahonen, Pia; Mäkinen, Juha; Rautava, Päivi

    2016-07-08

    Primary maternity care services are globally provided according to various organisational models. Two models are common in Finland: a maternity health clinic and an integrated maternity and child health clinic. The aim of this study was to clarify whether there is a relation between the organisational model of the maternity health clinics and the utilisation of maternity care services, and certain maternal and perinatal health outcomes. A comparative, register-based cross-sectional design was used. The data of women (N = 2741) who had given birth in the Turku University Hospital area between 1 January 2009 and 31 December 2009 were collected from the Finnish Medical Birth Register. Comparisons were made between the women who were clients of the maternity health clinics and integrated maternity and child health clinics. There were no clinically significant differences between the clients of maternity health clinics and integrated maternity and child health clinics regarding the utilisation of maternity care services or the explored health outcomes. The organisational model of the maternity health clinic does not impact the utilisation of maternity care services or maternal and perinatal health outcomes. Primary maternity care could be provided effectively when integrated with child health services.

  15. An exploration of clinical decision making in mental health triage.

    Science.gov (United States)

    Sands, Natisha

    2009-08-01

    Mental health (MH) triage is a specialist area of clinical nursing practice that involves complex decision making. The discussion in this article draws on the findings of a Ph.D. study that involved a statewide investigation of the scope of MH triage nursing practice in Victoria, Australia. Although the original Ph.D. study investigated a number of core practices in MH triage, the focus of the discussion in this article is specifically on the findings related to clinical decision making in MH triage, which have not previously been published. The study employed an exploratory descriptive research design that used mixed data collection methods including a survey questionnaire (n = 139) and semistructured interviews (n = 21). The study findings related to decision making revealed a lack of empirically tested evidence-based decision-making frameworks currently in use to support MH triage nursing practice. MH triage clinicians in Australia rely heavily on clinical experience to underpin decision making and have little of knowledge of theoretical models for practice, such as methodologies for rating urgency. A key recommendation arising from the study is the need to develop evidence-based decision-making frameworks such as clinical guidelines to inform and support MH triage clinical decision making.

  16. Models for Clinical Education Accompanying in Mental Health and Psychiatry

    Directory of Open Access Journals (Sweden)

    Lino Ramos

    2017-08-01

    Full Text Available Objective: To analyze the available scientific literature on the follow-up models in Clinical Teaching in Mental Health, carrying out a systematic review of the literature with re- search in the electronic databases PubMed, B-On, EBSCO platform and Scielo, as well as the Open Access scientific repositories of Portugal. Methodology: The present work consists of a systematic literature review (RSL. Keyword databases were searched first, the results were filtered according to exclusion and inclusion criteria and only selected the most appropriate references to answer the research question that were subsequently submitted to an evaluation by CASPe. The final sample includes 11 articles. Results: In the last decades, the training of nursing students has been the subject of several changes and transformations, once it is agreed that the training takes place in moments of theoretical training and moments of practical training in clinical teaching. Clinical teaching is a privileged space for the learning of nursing students. This is where they have the possibility to develop and mobilize skills and build knowledge The orientation of nursing students in clinical education has been the subject of numerous investigations in recent years; the area of Mental Health and Psychiatry (MHP shows a significant role in the development and construction of the identity of the nursing professional future. in the follow-up of students in clinical teaching, several actors stand out: the student, the teacher and the nurse orientate, who take special importance in the process of personal and professional development of the student, having a pedagogical, social and professional responsibility. The provision of care in MHP Clinical Teaching requires a wide range that allows the student to develop several aspects, namely creativity, therapeutic communication, sensitivity to care, listening, empathy, and interpersonal relationship capacity with the person, multi- disciplinary

  17. [Ethics in clinical practice and in health care].

    Science.gov (United States)

    Pintor, S; Mennuni, G; Fontana, M; Nocchi, S; Giarrusso, P; Serio, A; Fraioli, A

    2015-01-01

    The clinical ethics is the identification, analysis and solution of moral problems that can arise during the care of a patient. Given that when dealing with ethical issues in health care some risks will be encountered (talking about ethics in general, or as a problem overlapped with others in this area, or by delegation to legislative determinations) in the text certain important aspects of the topic are examined. First of all ethics as human quality of the relationship between people for the common good, especially in health services where there are serious problems like the life and the health. It is also necessary a "humanizing relationship" between those who work in these services in order to achieve quality and efficiency in this business. It is important a proper training of health professionals, especially doctors, so that they can identify the real needs and means of intervention. It is also important that scientific research must respect fundamental ethical assumptions. In conclusion, ethics in health care is not a simple matter of "cookbook" rules, but involves the responsibility and consciousness of individual operators.

  18. Timing of Clinical Billing Reimbursement for a Local Health Department.

    Science.gov (United States)

    McCullough, J Mac

    2016-01-01

    A major responsibility of a local health department (LHD) is to assure public health service availability throughout its jurisdiction. Many LHDs face expanded service needs and declining budgets, making billing for services an increasingly important strategy for sustaining public health service provision. Yet, little practice-based data exist to guide practitioners on what to expect financially, especially regarding timing of reimbursement receipt. This study provides results from one LHD on the lag from service delivery to reimbursement receipt. Reimbursement records for all transactions at Maricopa County Department of Public Health immunization clinics from January 2013 through June 2014 were compiled and analyzed to determine the duration between service and reimbursement. Outcomes included daily and cumulative revenues received. Time to reimbursement for Medicaid and private payers was also compared. Reimbursement for immunization services was received a median of 68 days after service. Payments were sometimes taken back by payers through credit transactions that occurred a median of 333 days from service. No differences in time to reimbursement between Medicaid and private payers were found. Billing represents an important financial opportunity for LHDs to continue to sustainably assure population health. Yet, the lag from service provision to reimbursement may complicate budgeting, especially in initial years of new billing activities. Special consideration may be necessary to establish flexibility in the budget-setting processes for services with clinical billing revenues, because funds for services delivered in one budget period may not be received in the same period. LHDs may also benefit from exploring strategies used by other delivery organizations to streamline billing processes.

  19. Health Professionals Facing Suicidal Patients: What Are Their Clinical Practices?

    Directory of Open Access Journals (Sweden)

    Inês Rothes

    2018-06-01

    Full Text Available Clinical work with suicidal people is a demanding area. Little is known about health professionals’ practices when faced with suicidal patients. The aims of this study were to: (1 describe the practices most likely to be adopted by professionals facing a suicidal patient and (2 analyze the differences according to professional characteristics (group, specific training on suicide, and experience with suicidal patients. A self-report questionnaire that was developed for this study was filled out by 239 participants. Participants were psychologists, psychiatrists, and general practitioners who work in different contexts: hospitals, public health centres, schools or colleges, and community centres. Principal components analysis, analyses of variance, and t-tests were used. Four components were identified: (1 Comprehensive risk assessment; (2 protocols, psychotherapy and connectedness; (3 multidisciplinary clinical approach; and, (4 family, explaining a total of variance of 44%. Positive associations between suicide-related variables (training and experience and practices were found. In general, health professionals’ practices are evidence-based, however a relevant percentage of professionals can benefit from training and improve their practices.

  20. Clinical and Para Clinical Information Needs of Infertility Electronic Health Records in Iran: A Delphi Study.

    Science.gov (United States)

    Farzandipour, Mehrdad; Jeddi, Fateme Rangraz; Gilasi, Hamid Reza; Shirzadi, Diana

    2017-09-01

    infertility is referred to the person's inability to conceive pregnancy after one year of intercourse without using protection. This study paves the ground for creating a complete, united, and coherent source of patients' medical information. this is an applied research of descriptive-cross sectional type which has been carried out through qualitative - quantitative methods. The sample of the present study was 50 specialists in the field of infertility which has been chosen based on purposive sampling method. Designing the questionnaire was done based on library studies and Gathering experts' views was done based on Delphi technique. 261 items from clinical and Para clinical information of infertile patients' electronic health records were subjected to an opinion poll by experts. During this process 223 items were accepted and 38 items have been rejected after two sessions of surveys by infertility experts. Para clinical information section consisted of 57 items that all of them have been accepted by the experts. Also, clinical information section consisted of 242 items from which 204 items were accepted and 38 items were rejected by the experts. existence of a structured electronic record system of infertile patients' information leads to the integration of patients' information, improvement of health care services and a decrease in treatment costs: all working to increase information safety. Furthermore, only essential and relevant information would be provided for the specialists and it will facilitate and direct the future infertility related studies due to the coherence, unity and relevance of the information.

  1. A model linking clinical workforce skill mix planning to health and health care dynamics

    Directory of Open Access Journals (Sweden)

    McDonnell Geoff

    2010-04-01

    Full Text Available Abstract Background In an attempt to devise a simpler computable tool to assist workforce planners in determining what might be an appropriate mix of health service skills, our discussion led us to consider the implications of skill mixing and workforce composition beyond the 'stock and flow' approach of much workforce planning activity. Methods Taking a dynamic systems approach, we were able to address the interactions, delays and feedbacks that influence the balance between the major components of health and health care. Results We linked clinical workforce requirements to clinical workforce workload, taking into account the requisite facilities, technologies, other material resources and their funding to support clinical care microsystems; gave recognition to productivity and quality issues; took cognisance of policies, governance and power concerns in the establishment and operation of the health care system; and, going back to the individual, gave due attention to personal behaviour and biology within the socio-political family environment. Conclusion We have produced the broad endogenous systems model of health and health care which will enable human resource planners to operate within real world variables. We are now considering the development of simple, computable national versions of this model.

  2. A model linking clinical workforce skill mix planning to health and health care dynamics.

    Science.gov (United States)

    Masnick, Keith; McDonnell, Geoff

    2010-04-30

    In an attempt to devise a simpler computable tool to assist workforce planners in determining what might be an appropriate mix of health service skills, our discussion led us to consider the implications of skill mixing and workforce composition beyond the 'stock and flow' approach of much workforce planning activity. Taking a dynamic systems approach, we were able to address the interactions, delays and feedbacks that influence the balance between the major components of health and health care. We linked clinical workforce requirements to clinical workforce workload, taking into account the requisite facilities, technologies, other material resources and their funding to support clinical care microsystems; gave recognition to productivity and quality issues; took cognisance of policies, governance and power concerns in the establishment and operation of the health care system; and, going back to the individual, gave due attention to personal behaviour and biology within the socio-political family environment. We have produced the broad endogenous systems model of health and health care which will enable human resource planners to operate within real world variables. We are now considering the development of simple, computable national versions of this model.

  3. Clinical Examination Component of Telemedicine, Telehealth, mHealth, and Connected Health Medical Practices.

    Science.gov (United States)

    Weinstein, Ronald S; Krupinski, Elizabeth A; Doarn, Charles R

    2018-05-01

    Telemedicine and telehealth are the practices of medicine at a distance. Performing the equivalent of a complete clinical examination by telemedicine would be unusual. However, components of a more traditional clinical examination are part of the telemedicine workup for specific conditions. Telemedicine clinical examinations are facilitated, and enhanced, through the integration of a class of medical devices referred to as telemedicine peripherals (eg, electronic stethoscopes, tele-ophthalmoscopes, video-otoscopes, and so forth). Direct-to-consumer telehealth is a rapidly expanding segment of the health care service industry. Copyright © 2018 Elsevier Inc. All rights reserved.

  4. Sleep Health Issues for Children with FASD: Clinical Considerations

    Directory of Open Access Journals (Sweden)

    James E. Jan

    2010-01-01

    Full Text Available This article describes the combined clinical experience of a multidisciplinary group of professionals on the sleep disturbances of children with fetal alcohol spectrum disorders (FASD focusing on sleep hygiene interventions. Such practical and comprehensive information is not available in the literature. Severe, persistent sleep difficulties are frequently associated with this condition but few health professionals are familiar with both FASD and sleep disorders. The sleep promotion techniques used for typical children are less suitable for children with FASD who need individually designed interventions. The types, causes, and adverse effects of sleep disorders, the modification of environment, scheduling and preparation for sleep, and sleep health for their caregivers are discussed. It is our hope that parents and also researchers, who are interested in the sleep disorders of children with FASD, will benefit from this presentation and that this discussion will stimulate much needed evidence-based research.

  5. Sleep Health Issues for Children with FASD: Clinical Considerations.

    Science.gov (United States)

    Jan, James E; Asante, Kwadwo O; Conry, Julianne L; Fast, Diane K; Bax, Martin C O; Ipsiroglu, Osman S; Bredberg, Elizabeth; Loock, Christine A; Wasdell, Michael B

    2010-01-01

    This article describes the combined clinical experience of a multidisciplinary group of professionals on the sleep disturbances of children with fetal alcohol spectrum disorders (FASD) focusing on sleep hygiene interventions. Such practical and comprehensive information is not available in the literature. Severe, persistent sleep difficulties are frequently associated with this condition but few health professionals are familiar with both FASD and sleep disorders. The sleep promotion techniques used for typical children are less suitable for children with FASD who need individually designed interventions. The types, causes, and adverse effects of sleep disorders, the modification of environment, scheduling and preparation for sleep, and sleep health for their caregivers are discussed. It is our hope that parents and also researchers, who are interested in the sleep disorders of children with FASD, will benefit from this presentation and that this discussion will stimulate much needed evidence-based research.

  6. NON-COMMUNICABLE DISEASE PROGRAM IN AMPANGAN HEALTH CLINIC

    Directory of Open Access Journals (Sweden)

    MASTURA I

    2010-01-01

    Full Text Available Non-communicable diseases (NCDs represent among the most common and debilitating conditions seen in primary care. Patients’ care will often involves multiple providers and follow-up requires persistence by patients and clinicians alike, therefore ideal outcomes are often difficult to achieve. The need for better disease management policies and practice is growing. This is due to the changing demographic profile of the population, the increasing cost of managing people in acute care hospitals and the availability of new technologies and services. All these changes enable a different care paradigm which is more cost effective and provides people with chronic conditions an improved quality of life. Management of the NCDs therefore offers an excellent opportunity to practice chronic disease management - a systems approach designed to ensure excellent care. The NCD team has developed a comprehensive approach to chronic disease care. We would like to describe the NCD Program in Ampangan Health Clinic which represents many typical government health clinics in Malaysia and the processes by which it was developed. Included are specific examples of the tools and how they can be used by individual clinicians incaring for patients. The integration of Chronic Disease Management Services into health care systems is the direction being undertaken to tackle the burden of chronic disease. Disease management supports the shift in healthcare from an emphasis on managing the acute episode to managing the entire disease course, highlighting both prevention and maintenance of wellbeing for patients with chronic diseases. Disease management promotes better integration and coordination of care across all aspects of the health sector.

  7. eHealth in cardiovascular medicine: A clinical update.

    Science.gov (United States)

    Saner, Hugo; van der Velde, Enno

    2016-10-01

    Demographic changes, progress in medicine technology and regional problems in providing healthcare to low density populations are posing great challenges to our healthcare systems. Rapid progress in computer sciences and information technologies have a great impact on the way healthcare will be delivered in the near future. This article describes opportunities and challenges of eHealth and telemedicine in the framework of our health systems and, in particular, in the context of today's cardiology services. The most promising applications of eHealth and telemedicine include: (a) prevention and lifestyle interventions; (b) chronic disease management including hypertension, diabetes and heart failure; (c) arrhythmia detection including early detection of atrial fibrillation and telemonitoring of devices such as pacemaker, internal cardioverter defibrillators and implantable rhythm monitoring devices; (d) telerehabilitation. Major obstacles to the integration of eHealth and telemedicine into daily clinical practice include limited large-scale evidence, in particular, for cost-effectiveness, as well as lack of interoperability, inadequate or fragmented legal frameworks and lack of reimbursement. An important challenge for those involved in these new technologies will be to keep the main focus on patient's individual needs and to carefully evaluate the evidence behind the practice. © The European Society of Cardiology 2016.

  8. Diet and Sleep Physiology: Public Health and Clinical Implications

    Directory of Open Access Journals (Sweden)

    Sarah Frank

    2017-08-01

    Full Text Available This mini-review examines the complex relationship between diet and sleep and explores the clinical and public health implications of the current evidence. Dietary quality and intake of specific nutrients can impact regulatory hormonal pathways to alter sleep quantity and quality. Sleep, in turn, affects the intake of total energy, as well as of specific foods and nutrients, through biological and behavioral mechanisms. Initial research in this field focused primarily on the effects of short sleep duration on nutritional quality. However, more recent studies have explored the dynamic relationship between long sleep duration and diet. Current evidence suggests that extremes of sleep duration alter sleep patterns, hormonal levels, and circadian rhythms, which contribute to weight-related outcomes and obesity, and other risk factors for the development of chronic disease such as type 2 diabetes and cardiovascular disease. These patterns may begin as early as childhood and have impacts throughout the life course. Given that non-communicable diseases are among the leading causes of death globally, deeper understanding of the interactions between sleep and nutrition has implications for both public health and clinical practice.

  9. Communication between hospitals and isolated aboriginal community health clinics.

    Science.gov (United States)

    Mackenzie, G; Currie, B J

    1999-04-01

    This study described the communication dynamics, identified problems and recommended changes to improve patient follow-up and communication between Royal Darwin Hospital (RDH) and isolated Aboriginal community health clinics (CHC) in the Northern Territory (NT). In 1995, staff interviews were conducted and an audit of isolated Aboriginal patients' RDH discharge summaries (DS). Eighteen per cent of RDH DSs never arrived in CHCs. DSs were often prepared late and more likely to be in CHC records if written on time and if the referral source was specified. Interviews revealed discontent between CHCs and RDH regarding: communication, DS documentation, the supply of discharge medication, as well as different hospital and community perceptions of Aboriginies' reliability to carry a DS and CHC desire for patients to be given DSs at discharge. Aboriginal patients should be given a DS at discharge and resident medical officers should be educated as to the function and importance of the DS. In 18 months following this study, RDH appointed unit-based Aboriginal health workers and a policy was produced for written communication between hospital and CHCs, as well as a discharge planning manual for Aboriginal communities. Projects investigating communication between hospitals and isolated Aboriginal clinics and patient follow-up may result in significant policy changes concerning these processes.

  10. Wide-diameter locking-taper implants: a prospective clinical study with 1 to 10-year follow-up

    Directory of Open Access Journals (Sweden)

    C. Mangano

    2014-06-01

    Full Text Available Aim: Wide-diameter implants (WDIs, diameter ≥4.5 mm are increasingly being used in patients with poor bone quality and reduced bone height. The aim of this study was to evaluate the survival rate, peri-implant bone loss, biological and prosthetic complications of wide-diameter (4.8 mm locking-taper implants used in the restoration of partially and fully edentulous patients. Materials and methods: Between January 2002 and December 2011, all patients referred to a private clinic for treatment with WDIs were considered for inclusion in the study. At each annual follow-up session, clinical and radiographic parameters were assessed: the outcome measurements were implant failure, peri-implant bone loss (distance between the implant shoulder and the first visible bone-to-implant contact: DIB, biological and prosthetic complications. The cumulative survival rate (CSR was assessed using the Kaplan-Meier estimator; Log-rank was applied to evaluate correlations between the study variables. The statistical analysis was performed at the patient and at the implant level. Results: A total of 438 WDIs were placed in 411 patients. Four implants failed, for a CSR of 99% (patient-based and 99.1% (implant-based at 10-year follow-up. The CSR did not differ significantly with respect to patients’ gender, age, smoking or parafunctional habit, implant location, position, length, bone type or prosthetic restoration. A mean DIB of 0.34 mm (± 0.23, 0.45 mm (± 0.27 and 0.75 mm (± 0.33 was shown at the 1-, 5- and 10-year follow-up examination. Conclusions: Wide-diameter, locking-taper implants can be a good treatment option for the rehabilitation of partially and fully edentulous patients over the long term.

  11. Clinical guideline implementation strategies for common mental health disorders.

    Science.gov (United States)

    Moreno, Eliana María; Moriana, Juan Antonio

    2016-01-01

    There has been a considerable proliferation of clinical guidelines recently, but their practical application is low, and organisations do not always implement their own ones. The aim of this study is to analyse and describe key elements of strategies and resources designed by the National Institute for Health and Care Excellence for the implementation of guidelines for common mental health disorders in adults, which are some of the most prevalent worldwide. A systematic review was performed following PRISMA model. Resources, tools and implementation materials where included and categorised considering type, objectives, target and scope. A total of 212 elements were analysed, of which 33.5 and 24.5% are related to the implementation of generalized anxiety and depression guidelines, respectively. Applied tools designed to estimate costs and assess the feasibility of the setting up at local level are the most frequent type of resource. The study highlights the important variety of available materials, classified into 3 main strategies: tools targeting the professionals (30.6%), structural (26.4%), and organizational (24%). Developing guidelines is not enough; it is also necessary to promote their implementation in order to encourage their application. The resources and strategies described in this study may be potentially applicable to other contexts, and helpful to public health managers and professionals in the design of programmes and in the process of informed decision making to help increase access to efficient treatments. Copyright © 2015. Published by Elsevier España.

  12. After the clinic? Researching sexual health technology in context.

    Science.gov (United States)

    Davis, Mark

    2015-01-01

    There is great interest in what testing, pharmaceutical, information and social media technology can do for sexual health. Much programmatic and research activity is focused on assessing how these technologies can be used to best effect. Less obvious are analyses that place technology into historical, political and real-world settings. Developing an 'in-context' analysis of sexual health technology, this paper draws on interviews with leading community advocates, researchers and clinicians in Australia, Canada and the UK and looks across examples, including social media, rapid HIV testing, pre-Exposure Prophylaxis for HIV and polymerase chain reaction Chlamydia testing. The analysis is framed by studies of techno-society and the dialectics of sex-affirmative advocacy with biomedical authority and attends to: the rationalistic and affective dimensions of the imaginary associated with technology; the role of technology in the re-spatialisation and re-temporalisation of the sexual health clinic; and the re-invention of technology in its real-world contexts. This in-context approach is important for: the effective implementation of new technology; strengthening the social science contribution to the field; and enriching social theory in general on life in techno-societies.

  13. The Fountain of Health: Bringing Seniors’ Mental Health Promotion into Clinical Practice

    Science.gov (United States)

    Thoo, Vanessa; Freer, Janya; Cassidy, Keri-Leigh

    2015-01-01

    Background The Fountain of Health (FoH) initiative offers valuable evidence-based mental health knowledge and provides clinicians with evaluated tools for translating knowledge into practice, in order to reduce seniors’ risks of mental disorders, including dementia. Methods A presentation on mental health promotion and educational materials were disseminated to mental health clinicians including physicians and other allied health professionals either in-person or via tele-education through a provincial seniors’ mental health network. Measures included: 1) a tele-education quality evaluation form, 2) a knowledge transfer questionnaire, 3) a knowledge translation-to-practice evaluation tool, and 4) a quality assurance questionnaire. Results A total of 74 mental health clinicians received the FoH education session. There was a highly significant (p < .0001) difference in clinicians’ knowledge transfer questionnaire scores pre- and post-educational session. At a two-month follow-up, 19 (25.7%) participants completed a quality assurance questionnaire, with all 19 (100%) of respondents stating they would positively recommend the FoH information to colleagues and patients. Eleven (20.4%) translation-to-practice forms were also collected at this interval, tracking clinician use of the educational materials. Conclusions The use of a formalized network for knowledge transfer allows for education and evaluation of health-care practitioners in both acquisition of practical knowledge and subsequent clinical behavior change. PMID:26740830

  14. Health status measurement in COPD: the minimal clinically important difference of the clinical COPD questionnaire

    Directory of Open Access Journals (Sweden)

    van den Berg JWK

    2006-04-01

    Full Text Available Abstract Background Patient-reported outcomes (PRO questionnaires are being increasingly used in COPD clinical studies. The challenge facing investigators is to determine what change is significant, ie what is the minimal clinically important difference (MCID. This study aimed to identify the MCID for the clinical COPD questionnaire (CCQ in terms of patient referencing, criterion referencing, and by the standard error of measurement (SEM. Methods Patients were ≥40 years of age, diagnosed with COPD, had a smoking history of >10 pack-years, and were participating in a randomized, controlled clinical trial comparing intravenous and oral prednisolone in patients admitted with an acute exacerbation of COPD. The CCQ was completed on Days 1–7 and 42. A Global Rating of Change (GRC assessment was taken to establish the MCID by patient referencing. For criterion referencing, health events during a period of 1 year after Day 42 were included in this analysis. Results 210 patients were recruited, 168 completed the CCQ questionnaire on Day42. The MCID of the CCQ total score, as indicated by patient referencing in terms of the GRC, was 0.44. The MCID of the CCQ in terms of criterion referencing for the major outcomes was 0.39, and calculation of the SEM resulted in a value of 0.21. Conclusion This investigation, which is the first to determine the MCID of a PRO questionnaire via more than one approach, indicates that the MCID of the CCQ total score is 0.4.

  15. Clinical reasoning and population health: decision making for an emerging paradigm of health care.

    Science.gov (United States)

    Edwards, Ian; Richardson, Barbara

    2008-01-01

    Chronic conditions now provide the major disease and disability burden facing humanity. This development has necessitated a reorientation in the practice skills of health care professions away from hospital-based inpatient and outpatient care toward community-based management of patients with chronic conditions. Part of this reorientation toward community-based management of chronic conditions involves practitioners' understanding and adoption of a concept of population health management based on appropriate theoretical models of health care. Drawing on recent studies of expertise in physiotherapy, this article proposes a clinical reasoning and decision-making framework to meet these challenges. The challenge of population and community-based management of chronic conditions also provides an opportunity for physiotherapists to further clarify a professional epistemology of practice that embraces the kinds of knowledge and clinical reasoning processes used in physiotherapy practice. Three case studies related to the management of chronic musculoskeletal pain in different populations are used to exemplify the range of epistemological perspectives that underpin community-based practice. They illustrate the link between conceptualizations of practice problems and knowledge sources that are used as a basis for clinical reasoning and decision making as practitioners are increasingly required to move between the clinic and the community.

  16. 42 CFR 440.20 - Outpatient hospital services and rural health clinic services.

    Science.gov (United States)

    2010-10-01

    ... Definitions § 440.20 Outpatient hospital services and rural health clinic services. (a) Outpatient hospital... services that are not generally furnished by most hospitals in the State. (b) Rural health clinic services... 42 Public Health 4 2010-10-01 2010-10-01 false Outpatient hospital services and rural health...

  17. Barriers to Providing Health Education During Primary Care Visits at Community Health Centers: Clinical Staff Insights.

    Science.gov (United States)

    Alicea-Planas, Jessica; Pose, Alix; Smith, Linda

    2016-04-01

    The rapid increase of diverse patients living in the US has created a different set of needs in healthcare, with the persistence of health disparities continuing to challenge the current system. Chronic disease management has been discussed as a way to improve health outcomes, with quality patient education being a key component. Using a community based participatory research framework, this study utilized a web-based survey and explored clinical staff perceptions of barriers to providing patient education during primary care visits. With a response rate of nearly 42 %, appointment time allotment seemed to be one of the most critical factors related to the delivery of health education and should be considered key. The importance of team-based care and staff training were also significant. Various suggestions were made in order to improve the delivery of quality patient education at community health centers located in underserved areas.

  18. Characterizing implicit mental health associations across clinical domains.

    Science.gov (United States)

    Werntz, Alexandra J; Steinman, Shari A; Glenn, Jeffrey J; Nock, Matthew K; Teachman, Bethany A

    2016-09-01

    Implicit associations are relatively uncontrollable associations between concepts in memory. The current investigation focuses on implicit associations in four mental health domains (alcohol use, anxiety, depression, and eating disorders) and how these implicit associations: a) relate to explicit associations and b) self-reported clinical symptoms within the same domains, and c) vary based on demographic characteristics (age, gender, race, ethnicity, and education). Participants (volunteers over age 18 to a research website) completed implicit association (Implicit Association Tests), explicit association (self + psychopathology or attitudes toward food, using semantic differential items), and symptom measures at the Project Implicit Mental Health website tied to: alcohol use (N = 12,387), anxiety (N = 21,304), depression (N = 24,126), or eating disorders (N = 10,115). Within each domain, implicit associations showed small to moderate associations with explicit associations and symptoms, and predicted self-reported symptoms beyond explicit associations. In general, implicit association strength varied little by race and ethnicity, but showed small ties to age, gender, and education. This research was conducted on a public research and education website, where participants could take more than one of the studies. Among a large and diverse sample, implicit associations in the four domains are congruent with explicit associations and self-reported symptoms, and also add to our prediction of self-reported symptoms over and above explicit associations, pointing to the potential future clinical utility and validity of using implicit association measures with diverse populations. Copyright © 2016 Elsevier Ltd. All rights reserved.

  19. [Clinical governance and patient safety culture in clinical laboratories in the Spanish National Health System].

    Science.gov (United States)

    Giménez-Marín, Á; Rivas-Ruiz, F

    To conduct a situational analysis of patient safety culture in public laboratories in the Spanish National Health System and to determine the clinical governance variables that most strongly influence patient safety. A descriptive cross-sectional study was carried out, in which a Survey of Patient Safety in Clinical Laboratories was addressed to workers in 26 participating laboratories. In this survey, which consisted of 45 items grouped into 6 areas, scores were assigned on a scale from 0 to 100 (where 0 is the lowest perception of patient safety). Laboratory managers were asked specific questions about quality management systems and technology. The mean scores for the 26 participating hospitals were evaluated, and the following results observed: in 4of the 6areas, the mean score was higher than 70 points. In the third area (equipment and resources) and the fourth area (working conditions), the scores were lower than 60 points. Every hospital had a digital medical record system. This 100% level of provision was followed by that of an electronic request management system, which was implemented in 82.6% of the hospitals. The results obtained show that the culture of security is homogeneous and of high quality in health service laboratories, probably due to the steady improvement observed. However, in terms of clinical governance, there is still some way to go, as shown by the presence of weaknesses in crucial dimensions of safety culture, together with variable levels of implementation of fail-safe technologies and quality management systems. Copyright © 2017 SECA. Publicado por Elsevier España, S.L.U. All rights reserved.

  20. Complementary therapy use by women's health clinic clients.

    Science.gov (United States)

    Pettigrew, Amy C; King, Margaret O'Brien; McGee, Karen; Rudolph, Connie

    2004-01-01

    While it is known that more women than men use complementary and alternative therapies, it is important to look at women who are pregnant or possibly receiving hormonal therapy, as side effects and consequences of these therapies may have a significant effect on their health status. To assess women's knowledge, perceived effectiveness and use of 20 complementary and alternative therapies. Descriptive four-page questionnaire to obtain data on the use, reason for use, knowledge, perceived effectiveness, and sources of information of twenty complementary and alternative therapies. Women's Health Center at a large Midwestern hospital. A convenience sample of 250 women waiting to be seen by either a nurse midwife or obstetrician/gynecologist at an outpatient clinic. Sixty-nine percent of the participants used one or more complementary therapy. The most frequently used therapies included prayer, vitamins, massage, diet, and aromatherapy. The best predictor of use of each therapy was the participant's knowledge of the therapy. Participants generally rated the efficacy of the therapies higher than their knowledge level. Frequently cited sources of information were popular media and family. The least common information sources were nurse-midwives, drug stores, Internet, and other professional healthcare providers. Women in this setting use complementary therapies at a rate greater than the general population. The participants obtained a great deal of their information about the therapies from popular press, media, friends, and family members rather than from licensed healthcare providers.

  1. Evaluation of specialist referrals at a rural health care clinic.

    Science.gov (United States)

    Biggerstaff, Mary Ellen; Short, Nancy

    2017-07-01

    Transition to a value-based care system involves reducing costs improving population health and enhancing the patient experience. Many rural hospitals must rely on specialist referrals because of a lack of an internal system of specialists on staff. This evaluation of the existing specialist referrals from primary care was conducted to better understand and improve the referral process and address costs, population health, and the patient experience. A 6-month retrospective chart review was conducted to evaluate quality and outcomes of specialty referrals submitted by 10 primary care providers. During a 6-month period in 2015, there was a total of 13,601 primary care patient visits and 3814 referrals, a referral rate of approximately 27%. The most striking result of this review was that nearly 50% of referred patients were not making the prescribed specialist appointment. Rather than finding a large number of unnecessary referrals, we found overall referral rates higher than expected, and a large percentage of our patients were not completing their referrals. The data and patterns emerging from this investigation would guide the development of referral protocols for a newly formed accountable care organization and lead to further quality improvement projects: a LEAN effort, dissemination of results to clinical and executive staff, protocols for orthopedic and neurosurgical referrals, and recommendations for future process improvements. ©2017 American Association of Nurse Practitioners.

  2. Acceptability of health information technology aimed at environmental health education in a prenatal clinic.

    Science.gov (United States)

    Rosas, Lisa G; Trujillo, Celina; Camacho, Jose; Madrigal, Daniel; Bradman, Asa; Eskenazi, Brenda

    2014-11-01

    To describe the acceptability of an interactive computer kiosk that provides environmental health education to low-income Latina prenatal patients. A mixed-methods approach was used to assess the acceptability of the Prenatal Environmental Health Kiosk pregnant Latina women in Salinas, CA (n=152). The kiosk is a low literacy, interactive touch-screen computer program with an audio component and includes graphics and an interactive game. The majority had never used a kiosk before. Over 90% of women reported that they learned something new while using the kiosk. Prior to using the kiosk, 22% of women reported their preference of receiving health education from a kiosk over a pamphlet or video compared with 57% after using the kiosk (peducation; and (3) popularity of the interactive game. The Prenatal Environmental Health Kiosk is an innovative patient health education modality that was shown to be acceptable among a population of low-income Latino pregnant women in a prenatal care clinic. This pilot study demonstrated that a health education kiosk was an acceptable strategy for providing Latina prenatal patients with information on pertinent environmental exposures. Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

  3. The Emerging Business Models and Value Proposition of Mobile Health Clinics.

    Science.gov (United States)

    Aung, Khin-Kyemon; Hill, Caterina; Bennet, Jennifer; Song, Zirui; Oriol, Nancy E

    2015-12-01

    Mobile health clinics are increasingly used to deliver healthcare to urban and rural populations. An estimated 2000 vehicles in the United States are now delivering between 5 and 6 million visits annually; however, despite this growth, mobile health clinics represent an underutilized resource that could transform the way healthcare is delivered, especially in underserved areas. Preliminary research has shown that mobile health clinics have the potential to reduce costs and improve health outcomes. Their value lies primarily in their mobility, their ability to be flexibly deployed and customized to fit the evolving needs of populations and health systems, and their ability to link clinical and community settings. Few studies have identified how mobile health clinics can be sustainably utilized. We discuss the value proposition of mobile health clinics and propose 3 potential business models for them-adoption by accountable care organizations, payers, and employers.

  4. Demographic and Mental Health Characteristics of Individuals Who Present to Community Health Clinics With Substance Misuse

    Directory of Open Access Journals (Sweden)

    Praise O. Iyiewuare

    2017-10-01

    Full Text Available Introduction: Community health clinics (CHCs are an opportune setting to identify and treat substance misuse. This study assessed the characteristics of patients who presented to a CHC with substance misuse. Methods: Personnel at a large CHC administered a 5-question screener to patients between June 3, 2014, and January 15, 2016, to assess past 3-month alcohol use, prescription opioid misuse, or illicit drug use. We stratified screen-positive patients into 4 diagnostic groups: (1 probable alcohol use disorder (AUD and no comorbid opioid use disorder (OUD; (2 probable heroin use disorder; (3 probable prescription OUD, with or without comorbid AUD; and (4 no probable substance use disorder. We describe substance use and mental health characteristics of screen-positive patients and compare the characteristics of patients in the diagnostic groups. Results: Compared to the clinic population, screen-positive patients (N = 733 included more males ( P < .0001 and had a higher prevalence of probable bipolar disorder ( P < .0001 and schizophrenia ( P < .0001. Eighty-seven percent of screen-positive patients had probable AUD or OUD; only 7% were currently receiving substance use treatment. The prescription opioid and heroin groups had higher rates of past bipolar disorder and consequences of mental health conditions than the alcohol only or no diagnosis groups ( P < .0001. Conclusions: Patients presenting to CHCs who screen positive for alcohol or opioid misuse have a high likelihood of having an AUD or OUD, with or without a comorbid serious mental illness. Community health clinics offering substance use treatment may be an important resource for addressing unmet need for substance use treatment and comorbid mental illness.

  5. A Return to "The Clinic" for Community Psychology: Lessons from a Clinical Ethnography in Urban American Indian Behavioral Health.

    Science.gov (United States)

    Hartmann, William E; St Arnault, Denise M; Gone, Joseph P

    2018-03-01

    Community psychology (CP) abandoned the clinic and disengaged from movements for community mental health (CMH) to escape clinical convention and pursue growing aspirations as an independent field of context-oriented, community-engaged, and values-driven research and action. In doing so, however, CP positioned itself on the sidelines of influential contemporary movements that promote potentially harmful, reductionist biomedical narratives in mental health. We advocate for a return to the clinic-the seat of institutional power in mental health-using critical clinic-based inquiry to open sites for clinical-community dialogue that can instigate transformative change locally and nationally. To inform such works within the collaborative and emancipatory traditions of CP, we detail a recently completed clinical ethnography and offer "lessons learned" regarding challenges likely to re-emerge in similar efforts. Conducted with an urban American Indian community behavioral health clinic, this ethnography examined how culture and culture concepts (e.g., cultural competence) shaped clinical practice with socio-political implications for American Indian peoples and the pursuit of transformative change in CMH. Lessons learned identify exceptional clinicians versed in ecological thinking and contextualist discourses of human suffering as ideal partners for this work; encourage intense contextualization and constraining critique to areas of mutual interest; and support relational approaches to clinic collaborations. © Society for Community Research and Action 2017.

  6. Pharmacists' Perception of the Sale of Non-Clinically Proven Health ...

    African Journals Online (AJOL)

    Pharmacists' Perception of the Sale of Non-Clinically Proven Health Supplements in Penang, Malaysia. ... A total of 10.7 % respondents indicated that the sale of non-clinically proven products result in high profit. Only 25.0 % of the pharmacists ... Keywords: Perception, Health promotion, Urban poor, Health supplements.

  7. Burnout in Veterans Health Administration Mental Health Providers in Posttraumatic Stress Clinics

    Science.gov (United States)

    Garcia, Hector A.; McGeary, Cindy A.; McGeary, Donald D.; Finley, Erin P.; Peterson, Alan L.

    2015-01-01

    The purpose of this study was to conduct the first assessment of burnout among Veterans Health Administration (VHA) mental health clinicians providing evidence-based posttraumatic stress disorder (PTSD) care. This study consisted of 138 participants and the sample was mostly female (67%), Caucasian (non-Hispanic; 81%), and married (70%) with a mean age of 44.3 years (SD = 11.2). Recruitment was directed through VHA PTSD Clinical Teams (PCT) throughout the United States based on a nationwide mailing list of PCT Clinic Directors. Participants completed an electronic survey that assessed demographics, organizational work factors, absenteeism, and burnout (assessed through the Maslach Burnout Inventory-General Survey, MBI-GS). Twelve percent of the sample reported low Professional Efficacy, 50% reported high levels of Exhaustion, and 47% reported high levels of Cynicism as determined by the MBI-GS cut-off scores. Only workplace characteristics were significantly associated with provider scores on all 3 scales. Exhaustion and Cynicism were most impacted by perceptions of organizational politics/bureaucracy, increased clinical workload and control over how work is done. Organizational factors were also significantly associated with provider absenteeism and intent to leave his/her job. Findings suggest that providers in VHA specialty PTSD care settings may benefit from programs or supports aimed at preventing and/or ameliorating burnout. PMID:24564443

  8. IBM’s Health Analytics and Clinical Decision Support

    Science.gov (United States)

    Sun, J.; Knoop, S.; Shabo, A.; Carmeli, B.; Sow, D.; Syed-Mahmood, T.; Rapp, W.

    2014-01-01

    Summary Objectives This survey explores the role of big data and health analytics developed by IBM in supporting the transformation of healthcare by augmenting evidence-based decision-making. Methods Some problems in healthcare and strategies for change are described. It is argued that change requires better decisions, which, in turn, require better use of the many kinds of healthcare information. Analytic resources that address each of the information challenges are described. Examples of the role of each of the resources are given. Results There are powerful analytic tools that utilize the various kinds of big data in healthcare to help clinicians make more personalized, evidenced-based decisions. Such resources can extract relevant information and provide insights that clinicians can use to make evidence-supported decisions. There are early suggestions that these resources have clinical value. As with all analytic tools, they are limited by the amount and quality of data. Conclusion Big data is an inevitable part of the future of healthcare. There is a compelling need to manage and use big data to make better decisions to support the transformation of healthcare to the personalized, evidence-supported model of the future. Cognitive computing resources are necessary to manage the challenges in employing big data in healthcare. Such tools have been and are being developed. The analytic resources, themselves, do not drive, but support healthcare transformation. PMID:25123736

  9. Clinical Simulation and Workflow by use of two Clinical Information Systems, the Electronic Health Record and Digital Dictation

    DEFF Research Database (Denmark)

    Schou Jensen, Iben; Koldby, Sven

    2013-01-01

    digital dictation and the EHR (electronic health record) were simulated in realistic and controlled clinical environments. Useful information dealing with workflow and patient safety were obtained. The clinical simulation demonstrated that the EHR locks during use of the integration of digital dictation......Clinical information systems do not always support clinician workflows. An increasing number of unintended clinical inci-dents might be related to implementation of clinical infor-mation systems and to a new registration praxis of unin-tended clinical incidents. Evidence of performing clinical...... simulations before implementation of new clinical information systems provides the basis for use of this method. The intention has been to evaluate patient safety issues, functionality, workflow, and usefulness of a new solution before implementation in the hospitals. Use of a solution which integrates...

  10. Service quality in public health clinics: perceptions of users and health professionals.

    Science.gov (United States)

    Campos, Domingos Fernandes; Negromonte Filho, Rinaldo Bezerra; Castro, Felipe Nalon

    2017-10-09

    Purpose The purpose of this paper is to investigate the expectations and quality gaps in services provided at city public health clinics in the city of Natal, Brazil, from the perspective of patients and healthcare service providers. Design/methodology/approach The research sample consisted of 1,200 patients who used public health services and 265 providers - doctors, nutritionists, physiotherapists, psychologists, pharmacists and managers at three health clinics in the city of Natal, Brazil. A scale with 25 health service attributes was used in data collection. Summary statistics and t-test were used to analyze the data. Findings The results show that the providers think that users have lower levels of expectations than those indicated by the users in all attributes. Providers and users have the most approximate insights into what attributes are considered most important: explanations, level of knowledge and attention dispensed by health professionals. Users and providers perceived similar quality gaps for most of the attributes. The gaps were statistically the same, when comparing the mean quality shortcomings by means of a Student's test, considering a significance level of 5 percent, obtained independently by the manifestation of users and providers. Research limitations/implications The results reveal only a photograph of the moment. The study did not consider the differences that may exist between groups with different income levels, genders or age groups. A qualitative study could improve the understanding of the differences and coincidences of the diverse points of views. A more advanced research could even study possibilities so that health managers could promote changes in the service, some of them low cost, as the health professionals training for contact with patients. Practical implications The evaluation of the service quality complemented by the matrix of opportunities, importance × quality gaps generates information to help make decisions in the

  11. Effect of immersive workplace experience on undergraduate nurses' mental health clinical confidence.

    Science.gov (United States)

    Patterson, Christopher; Moxham, Lorna; Taylor, Ellie K; Perlman, Dana; Brighton, Renee; Sumskis, Susan; Heffernan, Tim; Lee-Bates, Benjamin

    2017-12-01

    Preregistration education needs to ensure that student nurses are properly trained with the required skills and knowledge, and have the confidence to work with people who have a mental illness. With increased attention on non-traditional mental health clinical placements, further research is required to determine the effects of non-traditional mental health clinical placements on mental health clinical confidence. The aim of the present study was to investigate the impact of a non-traditional mental health clinical placement on mental health nursing clinical confidence compared to nursing students undergoing traditional clinical placements. Using the Mental Health Nursing Clinical Confidence Scale, the study investigated the relative effects of two placement programmes on the mental health clinical confidence of 79 nursing students. The two placement programmes included a non-traditional clinical placement of Recovery Camp and a comparison group that attended traditional clinical placements. Overall, the results indicated that, for both groups, mental health placement had a significant effect on improving mean mental health clinical confidence, both immediately upon conclusion of placement and at the 3-month follow up. Students who attended Recovery Camp reported a significant positive difference, compared to the comparison group, for ratings related to communicating effectively with clients with a mental illness, having a basic knowledge of antipsychotic medications and their side-effects, and providing client education regarding the effects and side-effects of medications. The findings suggest that a unique clinical placement, such as Recovery Camp, can improve and maintain facets of mental health clinical confidence for students of nursing. © 2017 Australian College of Mental Health Nurses Inc.

  12. Travel characteristics and health practices among travellers at the travellers' health and vaccination clinic in Singapore.

    Science.gov (United States)

    Lee, Vernon J; Wilder-Smith, Annelies

    2006-10-01

    Singapore has a fast-growing travel industry, but few studies have been done on travel characteristics and travel health practices. This study describes the profile and healthseeking behaviour of travellers attending a travel health clinic in Singapore. A cross-sectional survey was conducted on travellers attending the Traveller's Health and Vaccination Centre (THVC) between September and November 2002 using a standardised questionnaire. Information obtained included individual demographic and medical information, travel patterns, vaccination status and travel health practices. Four hundred and ninetyfive (74%) eligible travellers seen at THVC responded to the questionnaire. Their mean age was 36 years; 77% were professionals, managers, executives, and businessmen, students, and white collar workers. Asia was the main travel destination, and most travelled for leisure and resided in hotels or hostels. The median duration of travel was 16 days. Although >90% had previously travelled overseas, only 20% had previously sought pre-travel advice. Malays were significantly underrepresented (P travel advice compared with Chinese, Indians and Malays. Factors associated with seeking pre-travel advice included travel outside of Asia, especially Africa and South America. Singaporean travellers travel more often to cities rather than rural areas, compared with non-Asian travellers. Asia is the preferred destination, and travel outside of Asia is perceived as more risky and is associated with seeking pre-travel advice and vaccinations. Travel patterns and behaviours need to be taken into account when developing evidence-based travel medicine in Asia.

  13. Impact of environmental chemicals, sociodemographic variables, depression, and clinical indicators of health and nutrition on self-reported health status

    Science.gov (United States)

    Public health researchers ideally integrate social, environmental, and clinical measures to identify predictors of poor health. Chemicals measured in human tissues are often evaluated in relation to intangible or rare health outcomes, or are studied one chemical at a time. Using ...

  14. Health providers' perceptions of clinical trials : lessons from Ghana, Kenya and Burkina Faso

    NARCIS (Netherlands)

    Angwenyi, Vibian; Asante, Kwaku-Poku; Traoré, Abdoulaye; Febir, Lawrence Gyabaa; Tawiah, Charlotte; Kwarteng, Anthony; Ouédraogo, Alphonse; Sirima, Sodiomon Bienvenue; Owusu-Agyei, Seth; Imoukhuede, Egeruan Babatunde; Webster, Jayne; Chandramohan, Daniel; Molyneux, Sassy; Jones, Caroline

    2015-01-01

    BACKGROUND: Clinical trials conducted in Africa often require substantial investments to support trial centres and public health facilities. Trial resources could potentially generate benefits for routine health service delivery but may have unintended consequences. Strengthening ethical practice

  15. Evaluating Faculty Clinical Excellence in the Academic Health Sciences Center.

    Science.gov (United States)

    Carey, Robert M.; And Others

    1993-01-01

    Evaluation of the clinical competence of medical faculty in teaching hospitals is discussed. Different approaches to clinical assessment and theoretical and practical problems in assessing clinical faculty's performance are discussed. A University of Virginia medical school system for evaluation that combines objective and subjective assessment is…

  16. mHealth for Clinical Decision-Making in Sub-Saharan Africa : A Scoping Review

    NARCIS (Netherlands)

    Adepoju, Ibukun-Oluwa Omolade; Albersen, Bregje Joanna Antonia; De Brouwere, Vincent; van Roosmalen, Jos; Zweekhorst, M.B.M.

    2017-01-01

    BACKGROUND: In a bid to deliver quality health services in resource-poor settings, mobile health (mHealth) is increasingly being adopted. The role of mHealth in facilitating evidence-based clinical decision-making through data collection, decision algorithms, and evidence-based guidelines, for

  17. [Health care activity in a headache-specific clinic].

    Science.gov (United States)

    Garcia-Escrivà, A; Asensio-Asensio, M; López-Hernández, N; González-Aznar, O J; Oliver-Navarrete, C; Alvarez-Saúco, M; Pampliega-Pérez, A

    It is reckoned that headaches affect, at least once a year, around 90% of the population. The socioeconomic repercussion occasioned by this malady justifies the appearance in recent years of headache units. To conduct a descriptive epidemiological and health care study of the activity carried out in a headache-specific clinic. All the relevant points from the histories of patients who visited our surgery over a period of two years were collected prospectively and consecutively. The different types of headaches were classified according to the 1988 IHS criteria. Both the symptomatic and the preventive treatment were analysed. In all, a total of 866 patients were found; 691 (79.8%) were females and the mean age was 39.8 +/- 15.9 years (range: 6-90 years); 208 (24%) had a history of migraine in the family; 399 (49.9%) were diagnosed as suffering from migraine: 256 (64.2%) had migraine without aura, 152 (19%) were diagnosed as having tension-type headache, and 218 (27.3%) presented chronic daily headache (CDH). The most frequently used symptomatic treatments were NSAI drugs (36.7%) and triptanes (28.4%). Amitriptyline (47.7%), beta-blockers (14.5%) and calcium antagonists (11.3%) were the main drugs used as preventive treatment. After several years' operation of our Headache Unit, we thought there was a need to analyse the population seen in the visits. The fact that the majority of our patients were middle-aged females matched our expectations. Although most of the patients were diagnosed as suffering from M, we also want to highlight the high proportion of cases of CDH, above all associated with the abuse of analgesics.

  18. A rare case report of peri-implant bone necrosis: Mapping the distance of initial peri-implant complication toward a path of success

    Directory of Open Access Journals (Sweden)

    S K Salaria

    2011-01-01

    Full Text Available In the past decade, science of implant placement has greatly advanced and at the same time much success has been experienced with the endosseous implant. Despite the long-term predictability of the implants, however, biological, technical and esthetic complications do occur. The use of osseointegrated implants as a foundation for prosthetic replacement of missing teeth has been highly predictable, but still at present, there is no consensus of how to best manage the complications occurring after implant placement. In this report, we discuss post-insertion complication of bone necrosis and its successful management.

  19. Enabling professional development in mental health nursing: the role of clinical leadership.

    Science.gov (United States)

    Ennis, G; Happell, B; Reid-Searl, K

    2015-10-01

    Clinical leadership is acknowledged as important to the nursing profession. While studies continue to identify its significance in contributing to positive outcomes for consumers, the role that clinical leadership has in enabling and supporting professional development in mental health nursing is poorly understood. This study utilized a grounded theory methodology to explore the characteristics clinicians consider important for clinical leadership and its significance for mental health nursing in day-to-day clinical practice. Individual face-to-face, semi-structured interviews were conducted with nurses working in mental health settings. Participants described the important role that clinical leaders play in enabling professional development of others through role modelling and clinical teaching. They describe how nurses, whom they perceive as clinical leaders, use role modelling and clinical teaching to influence the professional development of nursing staff and undergraduate nursing students. Attributes such as professionalism and honesty were seen, by participants, as enablers for clinical leaders in effectively and positively supporting the professional development of junior staff and undergraduate nurses in mental health nursing. This paper examines clinical leadership from the perspective of mental health nurses delivering care, and highlights the important role of clinical leaders in supporting professional development in mental health nursing. © 2015 John Wiley & Sons Ltd.

  20. The effectiveness of clinical teaching of mental health courses in nursing using clinical supervision and Kirkpatrick's model.

    Science.gov (United States)

    Maddineshat, Maryam; Hashemi, Mitra; Besharati, Reza; Gholami, Sepideh; Ghavidel, Fatemeh

    2018-01-01

    Clinical experience associated with the fear and anxiety of nursing students in the psychiatric unit. Mental health nursing instructors find it challenging to teach nursing students to deal with patients with mental disorders in an environment where they need to provide patient teaching and clinical decision-making based on evidence and new technology. To measure the effectiveness of clinical teaching of mental health courses in nursing using clinical supervision and Kirkpatrick's model evaluation in the psychiatry unit of Imam Reza Hospital, Bojnurd, Iran. This cross-sectional study was carried out from 2011 to 2016 on 76 nursing students from a university as part of a clinical mental health course in two semesters. The students were selected by a non-probable convenient sampling method. After completing their clinical education, each student responded to checklist questions based on the four-level Kirkpatrick's model evaluation and open questions relating to clinical supervision. Finally, all data was analyzed using the SPSS version 16. The students have evaluated clinical supervision as a useful approach, and appreciated the instructor's supportive behavior during teaching and imparting clinical skills. This has made them feel relaxed at the end of the clinical teaching course. In addition, in the evaluation through Kirkpatrick's model, more than 70% of the students have been satisfied with the method of conducting the teaching and average score of nursing students' attitude toward mental health students: Their mean self-confidence score was 18.33±1.69, and the mean score of their performance in the study was evaluated to be 93.74±5.3 from 100 points. The results of clinical mental health teaching through clinical supervision and Kirkpatrick's model evaluation show that the satisfaction, self-esteem, attitude, and skill of nursing students are excellent, thereby portraying the effectiveness of clinical teaching. But this program still needs to be reformed. To

  1. Preventative health, diversity, and inclusion: a qualitative study of client experience aboard a mobile health clinic in Boston, Massachusetts.

    Science.gov (United States)

    Bouchelle, Zoe; Rawlins, Yasmin; Hill, Caterina; Bennet, Jennifer; Perez, Leonor Xochitl; Oriol, Nancy

    2017-11-03

    There are approximately 2000 mobile health clinics operating in the United States. While researchers have established that mobile health clinics can be cost effective and improve outcomes, there is scant research examining the healthcare experience on a mobile health clinic from patients' perspectives. Data were gathered from interviews with 25 clients receiving care on a Boston-based mobile health clinic and analyzed using grounded theory methodology. Emerging patterns in the data revealed three relational and three structural factors most significant to participants' experience of care on The Family Van. Relational factors include providers who 1) Communicate understandably, 2) Create a culture of respect and inclusivity, and 3) Are diverse with knowledge of the community. Structural factors include 1) A focus on preventative health and managing chronic disease, 2) Expeditious, free, and multiple services, and 3) Location. The participant accounts in this report serve to expand on prior research exploring mobile health clinics' role in patients' healthcare, to more clearly define the most salient aspects of the mobile health clinic model for the patients they serve, and to give voice to patients too seldom heard in the academic literature.

  2. Mental health and clinical correlates in lesbian, gay, bisexual, and queer young adults

    DEFF Research Database (Denmark)

    Grant, Jon E; Odlaug, Brian Lawrence; Derbyshire, Katherine

    2014-01-01

    This study examined the prevalence of mental health disorders and their clinical correlates in a university sample of lesbian, gay, bisexual, and queer (LGBQ) students.......This study examined the prevalence of mental health disorders and their clinical correlates in a university sample of lesbian, gay, bisexual, and queer (LGBQ) students....

  3. Frontline health care can be improved by bringing research into the clinic

    DEFF Research Database (Denmark)

    Steinhausen, Kirsten; Berghmans, Stephane; Højgaard, Liselotte

    2011-01-01

    Progress in clinical research has played a huge role in the great improvements in frontline health care achieved over the last 50 years, both in general practice and in hospitals.......Progress in clinical research has played a huge role in the great improvements in frontline health care achieved over the last 50 years, both in general practice and in hospitals....

  4. Investigation Clinical Competence and Its Relationship with Professional Ethics and Spiritual Health in Nurses

    Directory of Open Access Journals (Sweden)

    Elahe Ramezanzade Tabriz

    2017-03-01

    Full Text Available Abstract Background and Objectives: Study of clinical competence in nursing helps determine the quality of health care delivered to patients. Given the priority of observance of principles over caretaking and necessity of spirituality existence at the core of health care provision, this study was conducted to investigate clinical competence and its relationship with professional ethics and spiritual health in nurses. Methods: In this cross-sectional, descriptive, and correlational study, 281 nurses were enrolled by consensus sampling. Sampling was conducted from February, 2016 till June, 2016. The data were gathered by a demographics questionnaire, a self-assessment scale of clinical competence, a nursing ethics questionnaire, and a spiritual health questionnaire, and analyzed by descriptive statistics and t-test, Pearson's correlation coefficient, ANOVA, and linear regression analysis in SPSS 21. Results: The total scores for self-assessment scale of nurses' clinical competence, professional ethics, and spiritual health were moderate. In the light of the results of Spearman's correlation coefficient, there was a significant and positive correlation between clinical competence and spiritual health. Moreover, a significant positive correlation was observed between professional ethics and spiritual health but there was no correlation between professional ethics and clinical competence. Conclusion: Managers' and personnel's Knowledge about the level of nurses clinical competence, professional ethics, and spiritual health in teaching health care centers provides valuable information to develop in-service and efficacious education programs and ultimately to improve the quality of nursing services.

  5. DETAILED CLINICAL MODELS AND THEIR RELATION WITH ELECTRONIC HEALTH RECORDS.

    OpenAIRE

    Boscá Tomás, Diego

    2016-01-01

    [EN] Healthcare domain produces and consumes big quantities of people's health data. Although data exchange is the norm rather than the exception, being able to access to all patient data is still far from achieved. Current developments such as personal health records will introduce even more data and complexity to the Electronic Health Records (EHR). Achieving semantic interoperability is one of the biggest challenges to overcome in order to benefit from all the information contained in the ...

  6. Oral health literacy in adult dental patients - A clinical study

    OpenAIRE

    Stein, Linda

    2015-01-01

    The papers II and III of this thesis are not available in Munin. Paper II: Stein, L., Bergdahl, M., Pettersen, K. S., Bergdahl, J.: “The association between oral health literacy and alexithymia: Implications for patient-clinician communication”. (Manuscript). Published version with title “Exploring the association between oral health literacy and alexithymia” available in Community Dental Health 2015, 32(3):143 - 147. Paper III: Stein, L., Bergdahl, M., Pettersen, K. S., Bergdahl...

  7. Sex differences in health research and clinical guideline development

    NARCIS (Netherlands)

    Keuken, D.G.

    2008-01-01

    In current medical practice, research based evidence is an important foundation for clinical decision making. Clinical practice guidelines are a major instrument for keeping physicians up-to-date about this evidence. In order to provide optimal care to both men and women, it is important that sex

  8. Clinical Correlates of Health Preference and Generic Health-Related Quality of Life in Patients with Colorectal Neoplasms

    OpenAIRE

    Wong, Carlos K. H.; Lam, Cindy L. K.; Poon, Jensen T. C.; Kwong, Dora L. W.

    2013-01-01

    BACKGROUND: The aims of the study were to assess the health preference and health-related quality of life (HRQOL) in patients with colorectal neoplasms (CRN), and to determine the clinical correlates that significantly influence the HRQOL of patients. METHODS: Five hundred and fifty-four CRN patients, inclusive of colorectal polyp or cancer, who attended the colorectal specialist outpatient clinic at Queen Mary Hospital in Hong Kong between October 2009 and July 2010, were included. Patients ...

  9. Religion, Spirituality, and Health: The Research and Clinical Implications

    Science.gov (United States)

    Koenig, Harold G.

    2012-01-01

    This paper provides a concise but comprehensive review of research on religion/spirituality (R/S) and both mental health and physical health. It is based on a systematic review of original data-based quantitative research published in peer-reviewed journals between 1872 and 2010, including a few seminal articles published since 2010. First, I provide a brief historical background to set the stage. Then I review research on R/S and mental health, examining relationships with both positive and negative mental health outcomes, where positive outcomes include well-being, happiness, hope, optimism, and gratefulness, and negative outcomes involve depression, suicide, anxiety, psychosis, substance abuse, delinquency/crime, marital instability, and personality traits (positive and negative). I then explain how and why R/S might influence mental health. Next, I review research on R/S and health behaviors such as physical activity, cigarette smoking, diet, and sexual practices, followed by a review of relationships between R/S and heart disease, hypertension, cerebrovascular disease, Alzheimer's disease and dementia, immune functions, endocrine functions, cancer, overall mortality, physical disability, pain, and somatic symptoms. I then present a theoretical model explaining how R/S might influence physical health. Finally, I discuss what health professionals should do in light of these research findings and make recommendations in this regard. PMID:23762764

  10. Role of Forensic Pathology in Clinical Practice and Public Health ...

    African Journals Online (AJOL)

    The request for and performance of autopsy have been on the decline despite its obvious merits to medical practice, the patients and public health. Several surveys have exposed some reasons for this decline. Method: This work is a review of the role of forensic pathology to medical practice and public health. The author ...

  11. School-Located Influenza Vaccination Clinics: Local Health Department Perspectives

    Science.gov (United States)

    Ransom, James

    2009-01-01

    Universal childhood influenza vaccination presents challenges and opportunities for health care and public health systems to vaccinate the children who fall under the new recommendation. Advisory Committee on Immunization Practices (ACIP) recommendations and guidelines are helpful, but they do not provide strategies on how to deliver immunization…

  12. Clinical leadership in mental health nursing: the importance of a calm and confident approach.

    Science.gov (United States)

    Ennis, Gary; Happell, Brenda; Reid-Searl, Kerry

    2015-01-01

    Explore the perceptions of nurses working in mental health of effective clinical leadership. In-depth interviews were conducted with registered nurses employed in a mental health setting. Qualitative research using grounded theory. Remaining calm and confident in times of crisis and uncertainty was identified as one attribute of clinical leadership. Participants noted clinical leaders' demeanor during stressful or crisis situations, and their ability to manage unpredictable or unexpected clinical situations as contributing positively to clinical practice. Understanding these characteristics and how they can influence positive outcomes for clients is crucial in addressing the recruitment and retention challenges for the nursing workforce. © 2014 Wiley Periodicals, Inc.

  13. The importance of communication for clinical leaders in mental health nursing: the perspective of nurses working in mental health.

    Science.gov (United States)

    Ennis, Gary; Happell, Brenda; Broadbent, Marc; Reid-Searl, Kerry

    2013-11-01

    Communication has been identified as an important attribute of clinical leadership in nursing. However, there is a paucity of research on its relevance in mental health nursing. This article presents the findings of a grounded theory informed study exploring the attributes and characteristics required for effective clinical leadership in mental health nursing, specifically the views of nurses working in mental health about the importance of effective communication in day to day clinical leadership. In-depth interviews were conducted to gain insight into the participants' experiences and views on clinical leadership in mental health nursing. The data that emerged from these interviews were constantly compared and reviewed, ensuring that any themes that emerged were based on the participants' own experiences and views. Participants recognized that effective communication was one of the attributes of effective clinical leadership and they considered communication as essential for successful working relationships and improved learning experiences for junior staff and students in mental health nursing. Four main themes emerged: choice of language; relationships; nonverbal communication, and listening and relevance. Participants identified that clinical leadership in mental health nursing requires effective communication skills, which enables the development of effective working relationships with others that allows them to contribute to the retention of staff, improved outcomes for clients, and the development of the profession.

  14. Understanding Clinician Information Demands and Synthesis of Clinical Documents in Electronic Health Record Systems

    Science.gov (United States)

    Farri, Oladimeji Feyisetan

    2012-01-01

    Large quantities of redundant clinical data are usually transferred from one clinical document to another, making the review of such documents cognitively burdensome and potentially error-prone. Inadequate designs of electronic health record (EHR) clinical document user interfaces probably contribute to the difficulties clinicians experience while…

  15. Automated Methods to Extract Patient New Information from Clinical Notes in Electronic Health Record Systems

    Science.gov (United States)

    Zhang, Rui

    2013-01-01

    The widespread adoption of Electronic Health Record (EHR) has resulted in rapid text proliferation within clinical care. Clinicians' use of copying and pasting functions in EHR systems further compounds this by creating a large amount of redundant clinical information in clinical documents. A mixture of redundant information (especially outdated…

  16. Consumer health information technology in an adult public health primary care clinic: a heart health education feasibility study.

    Science.gov (United States)

    Gleason-Comstock, Julie A; Streater, Alicia; Jen, Kai-Lin Catherine; Artinian, Nancy T; Timmins, Jessica; Baker, Suzanne; Joshua, Bosede; Paranjpe, Aniruddha

    2013-12-01

    To explore the feasibility and short term outcomes of using an interactive kiosk integrated into office flow to deliver health information in a primary care clinic. Fifty-one adults with BMI ≥25 were randomly assigned to use a kiosk with attached devices to receive a six-week healthy eating/weight monitoring (intervention) or general health/BP monitoring (attention-control) program. Outcomes were measured at baseline, 8 weeks (post) and three month follow-up. Participants completed an average of 2.73 weekly sessions, with transportation and time given as limiting factors. They found the kiosk easy to use (97%), liked the touchscreen (94%), and would use the kiosk again (81%). Although there were no differences between groups, the 27 completing all assessments showed reduced weight (p=.02), and decreased systolic (p=.01) and diastolic BP (pinformation and self-monitoring. Multi-session educational content can provide beneficial short-term outcomes in overweight adults. A kiosk with attached peripherals in a clinic setting is a viable adjunct to provider education, particularly in medically underserved areas. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  17. The Gap in Knowledge of Clinical Practice Guidelines by Mental Health Residents in Buenos Aires (Argentina

    Directory of Open Access Journals (Sweden)

    Javier Fabrissin

    2014-05-01

    Full Text Available The aim of this pilot study was to evaluate if the residents of psychiatry and clinical psychology from the city of Buenos Aires knew any of the existing mental health Clinical Practice and Treatment Guidelines (CPTGs. We asked residents their opinion about CPTGs and, also, if they followed their recommendations in clinical practice. We asked 59 mental health residents (28 physicians and 29 psychologists with different years of clinical training to fill a questionnaire to know their opinion about CPTGs and also if they follow the CPTG recommendations in their clinical practice. We found that 79.31% of residents did not know any CPTG. Eighty percent of the residents who did know any CPTG have a positive opinion about CPTGs. Finally, the American Psychiatric Association Guidelines were the most known CPTGs. The authors emphasize the need for a clinical guidelines diffusion policy in Buenos Aires city and particularly as a clinical and training resource for mental health residents.

  18. Advancing LGBT Health Care Policies and Clinical Care Within a Large Academic Health Care System: A Case Study.

    Science.gov (United States)

    Ruben, Mollie A; Shipherd, Jillian C; Topor, David; AhnAllen, Christopher G; Sloan, Colleen A; Walton, Heather M; Matza, Alexis R; Trezza, Glenn R

    2017-01-01

    Culturally competent health care is especially important among sexual and gender minority patients because poor cultural competence contributes to health disparities. There is a need to understand how to improve health care quality and delivery for lesbian, gay, bisexual, and transgender (LGBT) veterans in particular, because they have unique physical and mental health needs as both LGBT individuals and veterans. The following article is a case study that focuses on the policy and clinical care practices related to LGBT clinical competency, professional training, and ethical provision of care for veteran patients in the VA Boston Healthcare System. We apply Betancourt et al.'s (2003) cultural competence framework to outline the steps that VA Boston Healthcare System took to increase cultural competency at the organizational, structural, and clinical level. By sharing our experiences, we aim to provide a model and steps for other health care systems and programs, including other VA health care systems, large academic health care systems, community health care systems, and mental health care systems, interested in developing LGBT health initiatives.

  19. Injection safety knowledge and practices among clinical health care ...

    African Journals Online (AJOL)

    Injection safety is therefore critical in preventing occupational exposure and infection from blood borne pathogens, hence prevention is a vital part of any ... safety among clinical healthcare workers at the Garissa Provincial General Hospital.

  20. Oral Health Status and Behaviour of Mauritians Visiting Private Dental Clinics

    Science.gov (United States)

    Gunsam, P. Pugo; Banka, S.

    2011-01-01

    Purpose: This paper seeks to assess the oral health status and behaviour of a sample of the Mauritian population visiting private dental clinics. Design/methodology/approach: Oral health status was determined using the World Health Organization (Decayed, Missing, Filled Teeth (DMFT) index indicating the prevalence of caries, and factors associated…

  1. Simplified Clinical Tools and Educational Outreach for Health Workers

    International Development Research Centre (IDRC) Digital Library (Canada)

    The training will focus on mid-level healthcare workers, that is, nurses, medical ... Registered Trustees of the Research for Equity and Community Health ... Call for new OWSD Fellowships for Early Career Women Scientists now open.

  2. The National Health Insurance, the decentralised clinical training ...

    African Journals Online (AJOL)

    studies, particularly those from Australia, Canada, and SA.[1-6] ... Gluckman's principles; therefore it is imperative to keep these in the forefront .... Digby A. Evidence, encounters and effects of South Africa's reforming Gluckman National Health.

  3. Evaluation of services of the integrative health clinic in Hong Kong.

    Science.gov (United States)

    Chung, Joanne W Y; Chung, Louisa M Y; Kwok, Nedra W L; Wong, Thomas K S

    2008-10-01

    (i) To provide a profile of the clients who have used the Integrative Health Clinic's services, (ii) to determine the clients' extent of satisfaction with the services received and (iii) to assess whether integrative therapies can/should be recommended to other clinics. Based on the integration of various health paradigms and the use of health promotion strategies, our Integrative Health Clinic in Hong Kong provides a range of different therapies for integrated symptom management. The integrative therapies are derived from conventional, complementary and alternative medicine. Design. Postal survey, followed by routine data analysis. Hong Kong Chinese clients attending a residential community health clinic were surveyed about health status and satisfaction towards the services received. A total of 489 clients (30.8% were male and 69.2% female) were registered with the clinic during the study period. The mean age (SD) was 47.8 (15.4) years. The customer satisfaction survey found that traditional Chinese medicine consultation was the most frequently used modality of the Integrative Health Clinic, followed by pain management. Out of the 489 clients, those who attended the Integrative Health Clinic only once in the study period for an annual health assessment and those who died during the period were excluded from the survey, giving a total of 276 eligible clients. Out of the 276 clients, 52.5% (128) responded to the survey that asked them to evaluate their satisfaction with the services received at the clinic and the performance of the clinic's practitioners who interacted with them. For practitioner performance, the percentage of respondents who gave a rating of satisfaction was found to range between 86.3-64.3%, while the percentage of respondents who gave a rating of dissatisfaction ranged from 13.7-35.7%. Overall, the survey found that most aspects of the Integrative Health Clinic's services were rated as satisfactory. The overwhelming satisfaction of clients with

  4. Clinical diagnosis of syphilis: a ten-year retrospective analysis in a South Australian urban sexual health clinic.

    Science.gov (United States)

    Forrest, C E; Ward, A

    2016-12-01

    National notifications for infectious syphilis in Australia have increased in recent years. Outside of sexual health clinics, junior clinicians seldom encounter this disease in its infectious stage (primary, secondary and early latent). With such a variable clinical presentation, textbook teaching is no substitute for real-life experience. The importance of accurate classification and staging of disease is relevant to the risk of transmission and determines treatment duration. In this article, the authors review the clinical presentation of syphilis over ten years in an urban sexual health clinic with a focus on the clinical presentation and diagnosis of infectious syphilis, in particular secondary syphilis, compared with that outlined in the Australian National Notifiable Diseases Surveillance System guidelines. This retrospective review of all patients diagnosed with syphilis at an urban sexual health clinic showed that between 2005 and 2015, 226 cases of syphilis were diagnosed. Documentation of impression of clinical staging of disease was present in 46% of the cases. Seventeen of these cases were recorded as secondary syphilis. The criteria used by clinicians to diagnose the secondary syphilis cases were consistent with criteria defined by the Australian National Notifiable Diseases Surveillance System. All cases of secondary syphilis had at least one cutaneous manifestation of disease. The demographic of the cohort of syphilis cases was consistent with that recorded in the literature. This review showed that the clinician's diagnosis of secondary syphilis in this service is consistent with the National Notifiable Diseases Surveillance System guidelines. Continuing education of junior medical staff is important to facilitate diagnosis and improve documentation of clinical staging, minimise disease transmission and ensure appropriate treatment. © The Author(s) 2016.

  5. The Interplay between socioeconomic inequalities and clinical oral health.

    Science.gov (United States)

    Steele, J; Shen, J; Tsakos, G; Fuller, E; Morris, S; Watt, R; Guarnizo-Herreño, C; Wildman, J

    2015-01-01

    Oral health inequalities associated with socioeconomic status are widely observed but may depend on the way that both oral health and socioeconomic status are measured. Our aim was to investigate inequalities using diverse indicators of oral health and 4 socioeconomic determinants, in the context of age and cohort. Multiple linear or logistic regressions were estimated for 7 oral health measures representing very different outcomes (2 caries prevalence measures, decayed/missing/filled teeth, 6-mm pockets, number of teeth, anterior spaces, and excellent oral health) against 4 socioeconomic measures (income, education, Index of Multiple Deprivation, and occupational social class) for adults aged ≥21 y in the 2009 UK Adult Dental Health Survey data set. Confounders were adjusted and marginal effects calculated. The results showed highly variable relationships for the different combinations of variables and that age group was critical, with different relationships at different ages. There were significant income inequalities in caries prevalence in the youngest age group, marginal effects of 0.10 to 0.18, representing a 10- to 18-percentage point increase in the probability of caries between the wealthiest and every other quintile, but there was not a clear gradient across the quintiles. With number of teeth as an outcome, there were significant income gradients after adjustment in older groups, up to 4.5 teeth (95% confidence interval, 2.2-6.8) between richest and poorest but none for the younger groups. For periodontal disease, income inequalities were mediated by other socioeconomic variables and smoking, while for anterior spaces, the relationships were age dependent and complex. In conclusion, oral health inequalities manifest in different ways in different age groups, representing age and cohort effects. Income sometimes has an independent relationship, but education and area of residence are also contributory. Appropriate choices of measures in relation to age

  6. [Conflicts of interests in clinical research in primary health care].

    Science.gov (United States)

    González-de Paz, L; Navarro-Rubio, M D; Sisó-Almirall, A

    2014-03-01

    Conflicts of interests between professionals and patients in biomedical research, is an ethical problem. None of the laws in Spain mention whether the clinical researcher has to clarify to participants the reasons why it proposes them to participate in a clinical trial. In this article, conflicts of interests in research are discussed in the context of primary healthcare. In this area conflicts of interests might alter the confidence between patients and healthcare professionals. Finally, we suggest some practical strategies that can help participants make the decision to participate in a clinical trial more willingly and freely. Copyright © 2013 Sociedad Española de Médicos de Atención Primaria (SEMERGEN). Publicado por Elsevier España. All rights reserved.

  7. Health status measurement in COPD : the minimal clinically important difference of the clinical COPD questionnaire

    NARCIS (Netherlands)

    Kocks, J. W. H.; Tuinenga, M. G.; Uil, S. M.; van den Berg, J. W. K.; Stahl, E.; van der Molen, T.

    2006-01-01

    Background: Patient-reported outcomes ( PRO) questionnaires are being increasingly used in COPD clinical studies. The challenge facing investigators is to determine what change is significant, ie what is the minimal clinically important difference (MCID). This study aimed to identify the MCID for

  8. Long-term prospective cohort study on dental implants: clinical and microbiological parameters.

    Science.gov (United States)

    Tenenbaum, Henri; Bogen, Omer; Séverac, François; Elkaim, René; Davideau, Jean-Luc; Huck, Olivier

    2017-01-01

    The aim of the present prospective cohort study is to evaluate clinical and microbiological data of dental implants after at least 8 years of follow-up. A total of 110 patients and 232 implants were included at baseline and followed during 1 year. Fifty-two patients and 108 implants could be evaluated at the final examination. Clinical and microbiological data were taken at baseline, 1 year and at least 8 years. The mean follow-up time was 10.8 ± 1.7 years. Plaque index was, respectively, 0.50 ± 0.50 at baseline, 0.50 ± 0.50 at 1 year and 0.33 ± 0.67 at ≥8 years. Gingival index was, respectively, 1.08 ± 0.19 at baseline, 1.01 ± 0.39 at 1 year and 0.22 ± 0.47 at ≥8 years. Sulcular bleeding index was, respectively, 0.17 ± 0.22 at baseline, 0.11 ± 0.33 at 1 year and 0.17 ± 0.22 at ≥8 years. Probing depth was, respectively, 2.67 ± 0.75 at baseline, 3.00 ± 0.83 at 1 year and 2.74 ± 1.00 at ≥8 years. Clinical attachment level was, respectively, 3.75 ± 1.17 at baseline, 4.00 ± 1.06 at 1 year and 4.00 ± 1.17 at ≥8 years. Peri-implant mucositis was detected around 60.2% of implants in 73.1% of patients, while peri-implantitis was affecting 12% of implants in 15.4% of patients. Some bacteria species were associated with worsened clinical parameters. About 69.4% of implants (75/108) and 67.3% of the patients (35/52) were considered as success in the present prospective cohort study after a mean follow-up of 10.8 years. Microbial follow-up may help to identify patients at risk for peri-implant disease. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  9. Electronic health record tools' support of nurses' clinical judgment and team communication.

    Science.gov (United States)

    Kossman, Susan P; Bonney, Leigh Ann; Kim, Myoung Jin

    2013-11-01

    Nurses need to quickly process information to form clinical judgments, communicate with the healthcare team, and guide optimal patient care. Electronic health records not only offer potential for enhanced care but also introduce unintended consequences through changes in workflow, clinical judgment, and communication. We investigated nurses' use of improvised (self-made) and electronic health record-generated cognitive artifacts on clinical judgment and team communication. Tanner's Clinical Judgment Model provided a framework and basis for questions in an online survey and focus group interviews. Findings indicated that (1) nurses rated self-made work lists and medication administration records highest for both clinical judgment and communication, (2) tools aided different dimensions of clinical judgment, and (3) interdisciplinary tools enhance team communication. Implications are that electronic health record tool redesign could better support nursing work.

  10. A Study of Children's Geographic Access to Health Services (Health Care Centers and Clinical Laboratories in Kermanshah City, Iran

    Directory of Open Access Journals (Sweden)

    Sohyla Reshadat

    2018-02-01

    Full Text Available Background Given that the protection of children's health is of special importance due to their special age and physical conditions, the present study aimed to investigate the condition of children's Geographic access to health services (Health Centers and Clinical Laboratories in Kermanshah city, Iran. Materials and Methods: In this applied study, the research approach was descriptive-analytic using quantitative models in Geographic information system (GIS environment. The statistical population was the whole population of young girls aged 0-14 years old in Kermanshah, Iran. Moreover, to evaluate the spatial deployment pattern of health services and the correct and true access of this groupto such services, all data and information were collected through the Iranian Statistics Center and evaluated using the Arc-GIS Software. The latest published population statistics on the Population and Housing Census in 2011 were considered the basis for the analyses. Results: The results of the present study demonstrated that more than 40% and 60% of the young girls aged 0-14 years old in Kermanshah were deprived of proper access to health centers and clinical laboratories, respectively. In terms of the status of children’s access in the Second Scenario (access to health services by vehicles and during 5, 10, and 15 minutes, about 5.53%, 93.1% and 15.1% lacked access to health centers, respectively. In addition, in terms of the status of children’s access to clinical laboratories during 5, 10, and 15 minutes, 17.26%, 65.4% and 51% lacked access to clinical laboratories, respectively. Conclusion: The access of young girls aged 0-14 years old to health services in Kermanshah was undesirable in the access to health services through walking. Additionally, the access of this groupto health services in the access to health services by vehicles was far better than the first one.

  11. Willingness to Use Health Insurance at a Sexually Transmitted Disease Clinic: A Survey of Patients at 21 US Clinics.

    Science.gov (United States)

    Pearson, William S; Cramer, Ryan; Tao, Guoyu; Leichliter, Jami S; Gift, Thomas L; Hoover, Karen W

    2016-08-01

    To survey patients of publicly funded sexually transmitted disease (STD) clinics across the United States about their willingness to use health insurance for their visit. In 2013, we identified STD clinics in 21 US metropolitan statistical areas with the highest rates of chlamydia, gonorrhea, and syphilis according to Centers for Disease Control and Prevention surveillance reports. Patients attending the identified STD clinics completed a total of 4364 surveys (response rate = 86.6%). Nearly half of the insured patients were willing to use their health insurance. Patients covered by government insurance were more likely to be willing to use their health insurance compared with those covered by private insurance (odds ratio [OR] =  3.60; 95% confidence interval [CI] = 2.79, 4.65), and patients covered by their parents' insurance were less likely to be willing to use their insurance compared with those covered by private insurance (OR = 0.72; 95% CI = 0.52, 1.00). Reasons for unwillingness to use insurance were privacy and out-of-pocket cost. Before full implementation of the Affordable Care Act, privacy and cost were barriers to using health insurance for STD services. Barriers to using health insurance for STD services could be reduced through addressing issues of stigma associated with STD care and considering alternative payment sources for STD services.

  12. Investigational Clinical Trial of a Prototype Optoelectronic Computer-Aided Navigation Device for Dental Implant Surgery.

    Science.gov (United States)

    Jokstad, Asbjørn; Winnett, Brenton; Fava, Joseph; Powell, David; Somogyi-Ganss, Eszter

    New digital technologies enable real-time computer-aided (CA) three-dimensional (3D) guidance during dental implant surgery. The aim of this investigational clinical trial was to demonstrate the safety and effectiveness of a prototype optoelectronic CA-navigation device in comparison with the conventional approach for planning and effecting dental implant surgery. Study participants with up to four missing teeth were recruited from the pool of patients referred to the University of Toronto Graduate Prosthodontics clinic. The first 10 participants were allocated to either a conventional or a prototype device study arm in a randomized trial. The next 10 participants received implants using the prototype device. All study participants were restored with fixed dental prostheses after 3 (mandible) or 6 (maxilla) months healing, and monitored over 12 months. The primary outcome was the incidence of any surgical, biologic, or prosthetic adverse events or device-related complications. Secondary outcomes were the incidence of positioning of implants not considered suitable for straightforward prosthetic restoration (yes/no); the perception of the ease of use of the prototype device by the two oral surgeons, recorded by use of a Likert-type questionnaire; and the clinical performance of the implant and superstructure after 1 year in function. Positioning of the implants was appraised on periapical radiographs and clinical photographs by four independent blinded examiners. Peri-implant bone loss was measured on periapical radiographs by a blinded examiner. No adverse events occurred related to placing any implants. Four device-related complications led to a switch from using the prototype device to the conventional method. All implants placed by use of the prototype device were in a position considered suitable for straightforward prosthetic restoration (n = 21). The qualitative evaluation by the surgeons was generally positive, although ergonomic challenges were identified

  13. Ecosystem Health Disorders - changing perspectives in clinical medicine and nutrition.

    Science.gov (United States)

    Wahlqvist, Mark L

    2014-01-01

    The inseparability of people from their ecosystem without biological change is increasingly clear. The discrete species concept is becoming more an approximation as the interconnectedness of all things, animate and inanimate, becomes more apparent. Yet this was evident even to our earliest Homo Sapiens sapiens ancestors as they hunted and gathered from one locality to another and migrated across the globe. During a rather short 150-200,000 years of ancestral history, we have changed the aeons-old planet and our ecology with dubious sustainability. As we have changed the ecosystems of which we are a part, with their opportunities for shelter, rest, ambulation, discourse, food, recreation and their sensory inputs, we have changed our shared biology and our health prospects. The rate of ecosystem change has increased quantitatively and qualitatively and so will that of our health patterns, depending on our resilience and how linear, non-linear or fractal-like the linkage. Our health-associated ecosystem trajectories are uncertain. The interfaces between us and our environment are blurred, but comprise time, biorhythms, prokaryotic organisms, sensory (auditory, visual, tactile, taste and smell), conjoint movement, endocrine with various external hormonal through food and contaminants, the reflection of soil and rock composition in the microbes, plants, insects and animals that we eat (our biogeology) and much more. We have sought ways to optimise our health through highly anthropocentric means, which have proven inadequate. Accumulated ecosystem change may now overwhelm our health. On these accounts, more integrative approaches and partnerships for health care practice are required.

  14. Factor Structure of the WPPSI in Mental Health Clinic Settings.

    Science.gov (United States)

    Haynes, Jack P.; Atkinson, David

    1984-01-01

    Factor-analyzed the Wechsler Preschool and Primary Scale of Intelligence (WPPSI) scores of emotionally disturbed children (N=181). The results suggested that the structure of intelligence for emotionally disturbed children is similar to that for normal children. WPPSI profile analysis that uses subtest scores may be invalid in clinical settings.…

  15. Surrogate end points in clinical research: hazardous to your health.

    Science.gov (United States)

    Grimes, David A; Schulz, Kenneth F

    2005-05-01

    Surrogate end points in clinical research pose real danger. A surrogate end point is an outcome measure, commonly a laboratory test, that substitutes for a clinical event of true importance. Resistance to activated protein C, for example, has been used as a surrogate for venous thrombosis in women using oral contraceptives. Other examples of inappropriate surrogate end points in contraception include the postcoital test instead of pregnancy to evaluate new spermicides, breakage and slippage instead of pregnancy to evaluate condoms, and bone mineral density instead of fracture to assess the safety of depo-medroxyprogesterone acetate. None of these markers captures the effect of the treatment on the true outcome. A valid surrogate end point must both correlate with and accurately predict the outcome of interest. Although many surrogate markers correlate with an outcome, few have been shown to capture the effect of a treatment (for example, oral contraceptives) on the outcome (venous thrombosis). As a result, thousands of useless and misleading reports on surrogate end points litter the medical literature. New drugs have been shown to benefit a surrogate marker, but, paradoxically, triple the risk of death. Thousands of patients have died needlessly because of reliance on invalid surrogate markers. Researchers should avoid surrogate end points unless they have been validated; that requires at least one well done trial using both the surrogate and true outcome. The clinical maxim that "a difference to be a difference must make a difference" applies to research as well. Clinical research should focus on outcomes that matter.

  16. Experiences of health science students during clinical placements at ...

    African Journals Online (AJOL)

    Inadequate supervision and inappropriate behaviours by supervisors were some of the challenges faced. Almost 89% used stress-relieving strategies such as focusing on why they were doing the clinical placement and the importance of successful completion. Ninety-one per cent had never used cannabis/mbanje but 41% ...

  17. Developing a Clinical Approach to Air Pollution and Cardiovascular Health.

    Science.gov (United States)

    Hadley, Michael B; Baumgartner, Jill; Vedanthan, Rajesh

    2018-02-13

    Nearly 3 billion people are exposed to household air pollution emitted from inefficient cooking and heating stoves, and almost the entire global population is exposed to detectable levels of outdoor air pollution from traffic, industry, and other sources. Over 3 million people die annually of ischemic heart disease or stroke attributed to air pollution, more than from traditional cardiac risk factors such as obesity, diabetes mellitus, or smoking. Clinicians have a role to play in reducing the burden of pollution-attributable cardiovascular disease. However, there currently exists no clear clinical approach to this problem. Here, we provide a blueprint for an evidence-based clinical approach to assessing and mitigating cardiovascular risk from exposure to air pollution. We begin with a discussion of the global burden of pollution-attributable cardiovascular disease, including a review of the mechanisms by which particulate matter air pollution leads to cardiovascular outcomes. Next, we offer a simple patient-screening tool using known risk factors for pollution exposure. We then discuss approaches to quantifying air pollution exposures and cardiovascular risk, including the development of risk maps for clinical catchment areas. We review a collection of interventions for household and outdoor air pollution, which clinicians can tailor to patients and populations at risk. Finally, we identify future research needed to quantify pollution exposures and validate clinical interventions. Overall, we demonstrate that clinicians can be empowered to mitigate the global burden of cardiovascular disease attributable to air pollution. © 2018 American Heart Association, Inc.

  18. Competence of maternal and child health clinic workers in detecting ...

    African Journals Online (AJOL)

    Background: The MCH clinic workers in Somalia receive formal and in-service training to perform their professional duties. Their competence in the field was never examined. This study assessed their competencies in detecting malnourished children 5 years and below in Beledweyne. Objective: To assess the competence ...

  19. Adoption of health information technologies by physicians for clinical practice

    DEFF Research Database (Denmark)

    Villalba-Mora, Elena; Casas, Isabel; Lupiañez-Villanueva, Francisco

    2015-01-01

    OBJECTIVES: We investigated the level of adoption of Health Information Technologies (HIT) services, and the factors that influence this, amongst specialised and primary care physicians; in Andalusia, Spain. METHODS: We analysed the physicians' responses to an online survey. First, we performed...... Technologies: Electronic Health Records (EHR), ePrescription and patient management and telemedicine services. Results from an ordered logit model showed that the frequency of use of HIT is associated with the physicians' perceived usefulness. Lack of financing appeared as a common barrier to the adoption...

  20. Preliminary Outcomes from an Integrated Pediatric Mental Health Outpatient Clinic.

    Science.gov (United States)

    Maslow, Gary R; Banny, Adrienne; Pollock, McLean; Stefureac, Kristen; Rosa, Kendra; Walter, Barbara Keith; Hobbs Knutson, Katherine; Lucas, Joseph; Heilbron, Nicole

    2017-10-01

    An estimated 1 in 5 children in the United States meet criteria for a diagnosable mental disorder, yet fewer than 20% receive mental health services. Unmet need for psychiatric treatment may contribute to patterns of increasing use of the emergency department. This article describes an integrated pediatric evaluation center designed to prevent the need for treatment in emergency settings by increasing access to timely and appropriate care for emergent and critical mental health needs. Preliminary results showed that the center provided rapid access to assessment and treatment services for children and adolescents presenting with a wide range of psychiatric concerns. Copyright © 2017 Elsevier Inc. All rights reserved.

  1. Evaluation of Metalloproteinase-8 Levels in Crevicular Fluid of Patients with Healthy Implants or Periodontitis

    Directory of Open Access Journals (Sweden)

    Paweł Aleksandrowicz

    2017-01-01

    Full Text Available Evaluation of periodontal and peri-implant tissue condition is mainly based on clinical examination and imaging diagnostics. Some data imply that Metalloproteinase-8 (MMP-8 level examination in peri-implant sulcular fluid (PISF might be useful for evaluating the condition of peri-implant tissues and monitoring a development of peri-implant inflammation, including both mucositis and peri-implantitis. Hence, in this study, we decided to evaluate the level of MMP-8 in PISF obtained from patients without clinical symptoms of mucositis or peri-implantitis and compare it with MMP-8 level in gingival crevicular fluid (GCF obtained from patients with healthy periodontium and those with varying severity of periodontitis. A total of 189 subjects were included in the study, and GCF/PISF samples were analysed for MMP-8 level by ELISA test. We documented that MMP-8 level in PISF obtained from patients without symptoms of mucositis or peri-implantitis was significantly higher not only than in GCF of periodontally healthy patients but also, which seems to be very interesting, than in GCF of patients with varying degrees of periodontal inflammation, consistent with earlier studies. Our observation might imply that monitoring of MMP-8 level in PISF could help to diagnose mucositis/peri-implantitis in an early stage, prior to clinical manifestations, which may allow for quick start of appropriate therapy.

  2. The prostate health index selectively identifies clinically significant prostate cancer

    NARCIS (Netherlands)

    S. Loeb (Stacy); M.G. Sanda (Martin G.); D.L. Broyles (Dennis L.); S.S. Shin (Sanghyuk S.); C.H. Bangma (Chris); J.T. Wei (John T.); A.W. Partin (Alan W.); G.G. Klee (George); K.M. Slawin (Kevin M.); L.S. Marks (Leonard S.); R.H.N. van Schaik (Ron); D.W. Chan (Daniel); L. Sokoll (Lori); A.B. Cruz (Amabelle B.); I.A. Mizrahi (Isaac A.); W.J. Catalona (William)

    2015-01-01

    textabstractPurpose The Prostate Health Index (phi) is a new test combining total, free and [-2]proPSA into a single score. It was recently approved by the FDA and is now commercially available in the U.S., Europe and Australia. We investigate whether phi improves specificity for detecting

  3. Clinical Perspective Qualitative adolescent health research — focus ...

    African Journals Online (AJOL)

    This paper introduces nine steps that are recommended in conducting focus group discussions in rural communities and gives an example of how they can appropriately and fruitfully be employed in adolescent health behavioural research. The paper also reviewed issues related to methods of data collection, data analysis, ...

  4. Appointment Template Redesign in a Women's Health Clinic Using Clinical Constraints to Improve Service Quality and Efficiency.

    Science.gov (United States)

    Huang, Y; Verduzco, S

    2015-01-01

    Patient wait time is a critical element of access to care that has long been recognized as a major problem in modern outpatient health care delivery systems. It impacts patient and medical staff productivity, stress, quality and efficiency of medical care, as well as health-care cost and availability. This study was conducted in a Women's Health Clinic. The objective was to improve clinic service quality by redesigning patient appointment template using the clinical constraints. The proposed scheduling template consisted of two key elements: the redesign of appointment types and the determination of the length of time slots using defined constraints. The re-classification technique was used for the redesign of appointment visit types to capture service variation for scheduling purposes. Then, the appointment length was determined by incorporating clinic constraints or goals, such as patient wait time, physician idle time, overtime, finish time, lunch hours, when the last appointment was scheduled, and the desired number of appointment slots, to converge the optimal length of appointment slots for each visit type. The redesigned template was implemented and the results indicated a 73% reduction in average patient waiting from the reported 40 to 11 minutes. The patient no-show rate was reduced by 4% from 24% to 20%. The morning section on average finished about 11:50 am. The clinic day was finished around 4:45 pm. Provider average idle time was estimated to be about 5 minutes, which can be used for charting/documenting patients. This study provided an alternative method of redesigning appointment scheduling templates using only the clinical constraints rather than the traditional way that required an objective function. This paper also documented the employed methods step by step in a real clinic setting. The implementation results concluded a significant improvement on patient wait time and no-show rate.

  5. What are the effective ways to translate clinical leadership into health care quality improvement?

    Directory of Open Access Journals (Sweden)

    McSherry R

    2016-02-01

    Full Text Available Robert McSherry,1 Paddy Pearce2 1School of Health and Social Care, University of Teesside, Middlesbrough, 2PKP Consulting, Yarm, United Kingdom Abstract: The presence and/or absence of effective leaders in health care can have a stark consequence on the quality and outcomes of care. The delivery of safe, quality, compassionate health care is dependent on having effective clinical leaders at the frontline. In light of the Kirkup and Francis reports, this article explores some ways of translating clinical leadership into health care quality improvement. This is achieved by exploring what is clinical leadership and why and how this is important to health care quality improvement, clinical leadership, and a duty of candor, along with the importance clinical leadership plays in the provision of quality care improvement and outcomes. Clinical leaders are not predefined roles but emerge from the complex clinical setting by gaining an acquired expertise and from how they then internalize this to develop and facilitate sound relationships within a team. Clinical leaders are effective in facilitating innovation and change through improvement. This is achieved by recognizing, influencing, and empowering individuals through effective communication in order to share and learn from and with each other in practice. The challenge for health care organizations in regard to creating organizational cultures where a duty of candor exists is not to reinvent the wheel by turning something that is simple into something complex, which can become confusing to health care workers, patients, and the public. By focusing on the clinical leader's role and responsibilities we would argue they play a crucial and pivotal role in influencing, facilitating, supporting, and monitoring that this duty of candor happens in practice. This may be possible by highlighting where and how the duty of candor can be aligned within existing clinical governance frameworks. Keywords: governance

  6. Innovation in Rehabilitation Services and Clinical Programs for Health Care

    Directory of Open Access Journals (Sweden)

    Asghar Dadkhah

    2014-06-01

    Full Text Available Rehabilitation program is a critical piece of clinical care strategy in order to accelerate healing and improve quality of life to the fullest extent possible. An innovated program should have 3 inspiring concepts: Seek inspire and Advance. Seeking and evaluating is a breakthrough technology, innovative methodology and emerging trend in the healthcare industry. The program should inspire clinicians to critically evaluate and implement the highest standards of care. Also an innovated program should advance clinical program development to maximize opportunities for first to market positioning and community partnerships. The scope of program can be from psycho-rehabilitation to predictor in addiction (1-3, Cognitive and motor rehabilitation researchers are quite concerned about system wide biases that may impair development of innovative rehabilitation techniques. In this issue ....

  7. Health Care Infrastructure for Financially Sustainable Clinical Genomics.

    Science.gov (United States)

    Lennerz, Jochen K; McLaughlin, Heather M; Baron, Jason M; Rasmussen, David; Sumbada Shin, Meini; Berners-Lee, Nancy; Miller Batten, Julie; Swoboda, Kathryn J; Gala, Manish K; Winter, Harland S; Schmahmann, Jeremy D; Sweetser, David A; Boswell, Marianne; Pacula, Maciej; Stenzinger, Albrecht; Le, Long P; Hynes, William; Rehm, Heidi L; Klibanski, Anne; Black-Schaffer, Stephen W; Golden, Jeffrey A; Louis, David N; Weiss, Scott T; Iafrate, A John

    2016-09-01

    Next-generation sequencing has evolved technically and economically into the method of choice for interrogating the genome in cancer and inherited disorders. The introduction of procedural code sets for whole-exome and genome sequencing is a milestone toward financially sustainable clinical implementation; however, achieving reimbursement is currently a major challenge. As part of a prospective quality-improvement initiative to implement the new code sets, we adopted Agile, a development methodology originally devised in software development. We implemented eight functionally distinct modules (request review, cost estimation, preauthorization, accessioning, prebilling, testing, reporting, and reimbursement consultation) and obtained feedback via an anonymous survey. We managed 50 clinical requests (January to June 2015). The fraction of pursued-to-requested cases (n = 15/50; utilization management fraction, 0.3) aimed for a high rate of preauthorizations. In 13 of 15 patients the insurance plan required preauthorization, which we obtained in 70% and ultimately achieved reimbursement in 50%. Interoperability enabled assessment of 12 different combinations of modules that underline the importance of an adaptive workflow and policy tailoring to achieve higher yields of reimbursement. The survey confirmed a positive attitude toward self-organizing teams. We acknowledge the individuals and their interactions and termed the infrastructure: human pipeline. Nontechnical barriers currently are limiting the scope and availability of clinical genomic sequencing. The presented human pipeline is one approach toward long-term financial sustainability of clinical genomics. Copyright © 2016 American Society for Investigative Pathology and the Association for Molecular Pathology. Published by Elsevier Inc. All rights reserved.

  8. Transforming rural health systems through clinical academic leadership: lessons from South Africa.

    Science.gov (United States)

    Doherty, J E; Couper, I D; Campbell, D; Walker, J

    2013-01-01

    Under-resourced and poorly managed rural health systems challenge the achievement of universal health coverage, and require innovative strategies worldwide to attract healthcare staff to rural areas. One such strategy is rural health training programs for health professionals. In addition, clinical leadership (for all categories of health professional) is a recognised prerequisite for substantial improvements in the quality of care in rural settings. Rural health training programs have been slow to develop in low- and middle-income countries (LMICs); and the impact of clinical leadership is under-researched in such settings. A 2012 conference in South Africa, with expert input from South Africa, Canada and Australia, discussed these issues and produced recommendations for change that will also be relevant in other LMICs. The two underpinning principles were that: rural clinical leadership (both academic and non-academic) is essential to developing and expanding rural training programs and improving care in LMICs; and leadership can be learned and should be taught. The three main sets of recommendations focused on supporting local rural clinical academic leaders; training health professionals for leadership roles in rural settings; and advancing the clinical academic leadership agenda through advocacy and research. By adopting the detailed recommendations, South Africa and other LMICs could energise management strategies, improve quality of care in rural settings and impact positively on rural health outcomes.

  9. Preceptors' perspectives of an integrated clinical learning model in a mental health environment.

    Science.gov (United States)

    Boardman, Gayelene; Lawrence, Karen; Polacsek, Meg

    2018-02-14

    Supervised clinical practice is an essential component of undergraduate nursing students' learning and development. In the mental health setting, nursing students traditionally undertake four-week block placements. An integrated clinical learning model, where preceptors mentor students on an individual basis, has been used successfully in the clinical learning environment. This flexible model provides the opportunity for students to work across morning, afternoon, night and weekend shifts. There is a need to improve the evidence base for a flexible model for students undertaking a mental health placement. The aim of this study was to understand preceptors' experience of, and satisfaction with, a mental health integrated clinical learning model. Focus groups were used to elicit the views of preceptors from a mental health service. Findings highlight the advantages and disadvantages of an integrated clinical learning model in the mental health setting. Participants suggested that students may benefit from flexible work arrangements, a variety of experiences and a more realistic experience of working in a mental health service. However, they found it challenging to mentor and evaluate students under this model. Most also agreed that the model impeded students' ability to engage with consumers and develop rapport with staff. The findings indicate the need to develop a placement model that meets the unique needs of the mental health setting. © 2018 Australian College of Mental Health Nurses Inc.

  10. Health self-perception by dementia family caregivers: sociodemographic and clinical factors

    Directory of Open Access Journals (Sweden)

    Letice Ericeira Valente

    2011-10-01

    Full Text Available Caring for a demented family member has been associated with burden. Studies concerning health self-perception of family caregivers are still scarce. OBJECTIVE: To investigate caregivers perceived health and to look into relationships with patients and caregivers' sociodemographic and clinical data. METHOD: Dyads of dementia outpatients and family caregivers (n=137 were assessed with Mini Mental State Examination, Functional Activities Questionnaire, Neuropsychiatric Inventory and Clinical Dementia Rating. Caregivers answered Sociodemographic Questionnaire, Beck Depression and Anxiety Inventories, Zarit Burden Interview and Maslach Burnout Inventory. RESULTS: Caregivers poor perceived health was associated with emotional exhaustion, burden, depression and anxiety. Logistic regression analyses revealed caregivers' age, anxiety and physical problem as the main predictors of health self-perception. CONCLUSION: Aged family caregivers with anxiety who also report physical problem characterize a group at risk for poor self-perceived health. Evaluation of health self-perception may be useful for designing interventions to improve anxiety and physical health.

  11. Patients' Positive and Negative Responses to Reading Mental Health Clinical Notes Online.

    Science.gov (United States)

    Denneson, Lauren M; Chen, Jason I; Pisciotta, Maura; Tuepker, Anais; Dobscha, Steven K

    2018-05-01

    This study describes responses to OpenNotes, clinical notes available online, among patients receiving mental health care and explores whether responses vary by patient demographic or clinical characteristics. Survey data from 178 veterans receiving mental health treatment at a large Veterans Affairs medical center included patient-reported health self-efficacy, health knowledge, alliance with clinicians, and negative emotional responses after reading OpenNotes. Health care data were extracted from the patient care database. Reading OpenNotes helped many participants feel in control of their health care (49%) and have more trust in clinicians (45%), although a few (8%) frequently felt upset after reading their notes. In multivariate models, posttraumatic stress disorder was associated with increased patient-clinician alliance (p=.046) but also with negative emotional responses (p<.01). Patients receiving mental health care frequently reported benefits from reading OpenNotes, yet some experienced negative responses.

  12. Factors shaping effective utilization of health information technology in urban safety-net clinics.

    Science.gov (United States)

    George, Sheba; Garth, Belinda; Fish, Allison; Baker, Richard

    2013-09-01

    Urban safety-net clinics are considered prime targets for the adoption of health information technology innovations; however, little is known about their utilization in such safety-net settings. Current scholarship provides limited guidance on the implementation of health information technology into safety-net settings as it typically assumes that adopting institutions have sufficient basic resources. This study addresses this gap by exploring the unique challenges urban resource-poor safety-net clinics must consider when adopting and utilizing health information technology. In-depth interviews (N = 15) were used with key stakeholders (clinic chief executive officers, medical directors, nursing directors, chief financial officers, and information technology directors) from staff at four clinics to explore (a) nonhealth information technology-related clinic needs, (b) how health information technology may provide solutions, and (c) perceptions of and experiences with health information technology. Participants identified several challenges, some of which appear amenable to health information technology solutions. Also identified were requirements for effective utilization of health information technology including physical infrastructural improvements, funding for equipment/training, creation of user groups to share health information technology knowledge/experiences, and specially tailored electronic billing guidelines. We found that despite the potential benefit that can be derived from health information technologies, the unplanned and uninformed introduction of these tools into these settings might actually create more problems than are solved. From these data, we were able to identify a set of factors that should be considered when integrating health information technology into the existing workflows of low-resourced urban safety-net clinics in order to maximize their utilization and enhance the quality of health care in such settings.

  13. Ethics and the electronic health record in dental school clinics.

    Science.gov (United States)

    Cederberg, Robert A; Valenza, John A

    2012-05-01

    Electronic health records (EHRs) are a major development in the practice of dentistry, and dental schools and dental curricula have benefitted from this technology. Patient data entry, storage, retrieval, transmission, and archiving have been streamlined, and the potential for teledentistry and improvement in epidemiological research is beginning to be realized. However, maintaining patient health information in an electronic form has also changed the environment in dental education, setting up potential ethical dilemmas for students and faculty members. The purpose of this article is to explore some of the ethical issues related to EHRs, the advantages and concerns related to the use of computers in the dental operatory, the impact of the EHR on the doctor-patient relationship, the introduction of web-based EHRs, the link between technology and ethics, and potential solutions for the management of ethical concerns related to EHRs in dental schools.

  14. A Health Science Process Framework for Comprehensive Clinical Functional Assessment

    Science.gov (United States)

    2014-02-01

    Adaptability Inventory-4 • Rancho Los Amigos Cognitive Scale - Inpatient • Rancho Los Amigos Cognitive Scale - Outpatient • Satisfaction with Life...and policies e580 Health services, systems and policies e585 Education and training services, systems and policies e590 Labour and employment services...consistently reported a high degree of satisfaction with the process, and demonstrated a high level of interest in the exercise. In conjunction with the

  15. A method of teaching clinical problem-solving skills to primary health ...

    African Journals Online (AJOL)

    2009-03-14

    Mar 14, 2009 ... was named the Diploma in Clinical Nursing Science, Health Assessment,. Treatment and ... Seeks relevant and discriminating physical signs to help confirm or refute working .... related to allergies e.g. pets, pollens, smoke.

  16. How to estimate the health benefits of additional research and changing clinical practice

    OpenAIRE

    Claxton, Karl; Griffin, Susan; Koffijberg, Hendrik; McKenna, Claire

    2015-01-01

    A simple extension of standard meta-analysis can provide quantitative estimates of the potential health benefits of further research and of implementing the findings of existing research, which can help inform research prioritisation and efforts to change clinical practice

  17. How to estimate the health benefits of additional research and changing clinical practice

    OpenAIRE

    Claxton, Karl; Griffin, Susan; Koffijberg, Hendrik; McKenna, Claire

    2015-01-01

    A simple extension of standard metaanalysis can provide quantitative estimates of the potential health benefits of further research and of implementing the findings of existing research, which can help inform research prioritisation and efforts to change clinical practice

  18. Addiction Competencies in the 2009 CACREP Clinical Mental Health Counseling Program Standards

    Science.gov (United States)

    Lee, Tiffany K.; Craig, Stephen E.; Fetherson, Bianca T. L.; Simpson, C. Dennis

    2013-01-01

    The Council for Accreditation of Counseling and Related Educational Programs developed addiction competencies for clinical mental health counseling students. This article highlights these competencies, provides an overview of current addiction training, and describes methods to integrate addiction education into curricula.

  19. Evaluating Integrative Cancer Clinics With the Claim Assessment Profile: An Example With the InspireHealth Clinic.

    Science.gov (United States)

    Hilton, Lara; Elfenbaum, Pamela; Jain, Shamini; Sprengel, Meredith; Jonas, Wayne B

    2018-03-01

    The evaluation of freestanding integrative cancer clinical programs is challenging and is rarely done. We have developed an approach called the Claim Assessment Profile (CAP) to identify whether evaluation of a practice is justified, feasible, and likely to provide useful information. A CAP was performed in order to (1) clarify the healing claims at InspireHealth, an integrative oncology treatment program, by defining the most important impacts on its clients; (2) gather information about current research capacity at the clinic; and (3) create a program theory and path model for use in prospective research. This case study design incorporates methods from a variety of rapid assessment approaches. Procedures included site visits to observe the program, structured qualitative interviews with 26 providers and staff, surveys to capture descriptive data about the program, and observational data on program implementation. The InspireHealth program is a well-established, multi-site, thriving integrative oncology clinical practice that focuses on patient support, motivation, and health behavior engagement. It delivers patient-centered care via a standardized treatment protocol. There arehigh levels of research interest from staff and resources by which to conduct research. This analysis provides the primary descriptive and claims clarification of an integrative oncology treatment program, an evaluation readiness report, a detailed logic model explicating program theory, and a clinical outcomes path model for conducting prospective research. Prospective evaluation of this program would be feasible and valuable, adding to our knowledge base of integrative cancer therapies.

  20. CORRELATIONS BETWEEN INTER-IMPLANT DISTANCE AND CLINICAL ASPECTS IN TWO IMPLANT MANDIBULAR OVERDENTURES

    Directory of Open Access Journals (Sweden)

    Mihaela Marin

    2011-09-01

    Full Text Available The aim of this study is to assess the influence of different interimplant distances on prosthetic complications in two implant mandibular overdenture treatments, as well as the possible correlations between such complications and some anatomic and functional individual aspect of the patients. Materials and method. An observational clinical study was conducted – between October 2008 – March 2010 - in the Clinics of Dental Prosthetics of the “Carol Davila” UMF of Bucuresti – on 32 completely edentulous patients, treated with 2 implant mandibular overdentures. The patients (24 women and 8 men, with ages between 49 and 83 years were divided into 2 groups, according to the position of the implants, inserted at the level of the lateral incisor (group 1 or in posterior position versus the canine (group 2. The prosthetic aspects, the peri-implant tissues and the anchoring systems were evaluated after 6 months and, respectively, 1 year of treatment, all prosthetic or biological complications, as well as the number of visits necessary for solving them being recorded. Results. As to the general characteristics of the group of patients, the observation was made that the average age of patients was of 63.8 years, most of them demonstrated a severe resorbtion of the crest, oval in shape in the mandibular frontal area, belonging mostly to the IInd hypo or hyper-divergent skeletal class, proportionally with and without a tendency towards propulsion. For both groups of patients, a total number of 114 prosthetic complications were registered after one year, the most frequent ones being occlusal problems (23.68%, the presence of decubitus lesions (21.05% and deactivation of matrices, accompanied by reduced retention (19.29%. Lower ratios were recorded for: the necessity of prosthesis relining (14%, loss of matrices (12.28%, fracturing of the prosthesis (8.77%, presence of peri-implant gingival hyperplasies (7% and loosening of the patrix screw (5

  1. What would it take? Stakeholders' views and preferences for implementing a health care manager program in community mental health clinics under health care reform.

    Science.gov (United States)

    Cabassa, Leopoldo J; Gomes, Arminda P; Lewis-Fernández, Roberto

    2015-02-01

    Health care manager interventions can improve the physical health of people with serious mental illness (SMI). In this study, we used concepts from the theory of diffusion of innovations, the consolidated framework for implementation research and a taxonomy of implementation strategies to examine stakeholders' recommendations for implementing a health care manager intervention in public mental health clinics serving Hispanics with SMI. A purposive sample of 20 stakeholders was recruited from mental health agencies, primary care clinics, and consumer advocacy organizations. We presented participants a vignette describing a health care manager intervention and used semistructured qualitative interviews to examine their views and recommendations for implementing this program. Interviews were recorded, professionally transcribed, and content analyzed. We found that a blend of implementation strategies that demonstrates local relative advantage, addresses cost concerns, and enhances compatibility to organizations and the client population is critical for moving health care manager interventions into practice. © The Author(s) 2014.

  2. Service quality and clinical outcomes: an example from mental health rehabilitation services in England.

    Science.gov (United States)

    Killaspy, Helen; Marston, Louise; Omar, Rumana Z; Green, Nicholas; Harrison, Isobel; Lean, Melanie; Holloway, Frank; Craig, Tom; Leavey, Gerard; King, Michael

    2013-01-01

    Current health policy assumes better quality services lead to better outcomes. To investigate the relationship between quality of mental health rehabilitation services in England, local deprivation, service user characteristics and clinical outcomes. Standardised tools were used to assess the quality of mental health rehabilitation units and service users' autonomy, quality of life, experiences of care and ratings of the therapeutic milieu. Multiple level modelling investigated relationships between service quality, service user characteristics and outcomes. A total of 52/60 (87%) National Health Service trusts participated, comprising 133 units and 739 service users. All aspects of service quality were positively associated with service users' autonomy, experiences of care and therapeutic milieu, but there was no association with quality of life. Quality of care is linked to better clinical outcomes in people with complex and longer-term mental health problems. Thus, investing in quality is likely to show real clinical gains.

  3. Clinical Management of Implant Prostheses in Patients with Bruxism

    Science.gov (United States)

    Komiyama, Osamu; Lobbezoo, Frank; De Laat, Antoon; Iida, Takashi; Kitagawa, Tsuyoshi; Murakami, Hiroshi; Kato, Takao; Kawara, Misao

    2012-01-01

    There is general agreement that excessive stress to the bone-implant interface may result in implant overload and failure. Early failure of the implant due to excessive loading occurs shortly after uncovering the implant. Excess load on a final restoration after successful implant integration can result in physical failure of the implant structure. Many clinicians believe that overload of dental implants is a risk factor for vertical peri-implant bone loss and/or may be detrimental for the suprastructure in implant prostheses. It has been documented that occlusal parafunction, such as, bruxism (tooth grinding and clenching) affects the outcome of implant prostheses, but there is no evidence for a causal relation between the failures and overload of dental implants. In spite of this lack of evidence, often metal restorations are preferred instead of porcelain for patients in whom bruxism is presumed on the basis of tooth wear. The purpose of this paper is to discuss the importance of the occlusal scheme used in implant restorations for implant longevity and to suggest a clinical approach and occlusal materials for implant prostheses in order to prevent complications related to bruxism. PMID:22701484

  4. What are the effective ways to translate clinical leadership into health care quality improvement?

    Science.gov (United States)

    McSherry, Robert; Pearce, Paddy

    2016-01-01

    The presence and/or absence of effective leaders in health care can have a stark consequence on the quality and outcomes of care. The delivery of safe, quality, compassionate health care is dependent on having effective clinical leaders at the frontline. In light of the Kirkup and Francis reports, this article explores some ways of translating clinical leadership into health care quality improvement. This is achieved by exploring what is clinical leadership and why and how this is important to health care quality improvement, clinical leadership, and a duty of candor, along with the importance clinical leadership plays in the provision of quality care improvement and outcomes. Clinical leaders are not predefined roles but emerge from the complex clinical setting by gaining an acquired expertise and from how they then internalize this to develop and facilitate sound relationships within a team. Clinical leaders are effective in facilitating innovation and change through improvement. This is achieved by recognizing, influencing, and empowering individuals through effective communication in order to share and learn from and with each other in practice. The challenge for health care organizations in regard to creating organizational cultures where a duty of candor exists is not to reinvent the wheel by turning something that is simple into something complex, which can become confusing to health care workers, patients, and the public. By focusing on the clinical leader's role and responsibilities we would argue they play a crucial and pivotal role in influencing, facilitating, supporting, and monitoring that this duty of candor happens in practice. This may be possible by highlighting where and how the duty of candor can be aligned within existing clinical governance frameworks.

  5. Bronx Teens Connection's Clinic Linkage Model: Connecting Youth to Quality Sexual and Reproductive Health Care.

    Science.gov (United States)

    O'Uhuru, Deborah J; Santiago, Vivian; Murray, Lauren E; Travers, Madeline; Bedell, Jane F

    2017-03-01

    Teen pregnancy and birth rates in the Bronx have been higher than in New York City, representing a longstanding health disparity. The New York City Department of Health and Mental Hygiene implemented a community-wide, multicomponent intervention to reduce unintended teen pregnancy, the Bronx Teens Connection. The Bronx Teens Connection Clinic Linkage Model sought to increase teens' access to and use of sexual and reproductive health care by increasing community partner capacity to link neighborhood clinics to youth-serving organizations, including schools. The Bronx Teens Connection Clinic Linkage Model used needs assessments, delineated the criteria for linkages, clarified roles and responsibilities of partners and staff, established trainings to support the staff engaged in linkage activities, and developed and used process evaluation methods. Early results demonstrated the strength and feasibility of the model over a 4-year period, with 31 linkages developed and maintained, over 11,300 contacts between clinic health educators and teens completed, and increasing adherence to the Centers for Disease Control and Prevention-defined clinical best practices for adolescent reproductive health. For those eight clinics that were able to provide data, there was a 25% increase in the number of teen clients seen over 4 years. There are many factors that relate to an increase in clinic utilization; some of this increase may have been a result of the linkages between schools and clinics. The Bronx Teens Connection Clinic Linkage Model is an explicit framework for clinical and youth-serving organizations seeking to establish formal linkage relationships that may be useful for other municipalities or organizations. Copyright © 2016 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.

  6. Women in Free Clinics: An Assessment of Health-Related Quality of Life for Prevention and Health Education.

    Science.gov (United States)

    Kamimura, Akiko; Myers, Kyl; Ashby, Jeanie; Trinh, Ha Ngoc; Nourian, Maziar M; Reel, Justine J

    2015-08-01

    Understanding gender influences on health-related quality of life (HRQoL) is important to improve women's health when considering diseases that afflict women specifically. The target population of this study was uninsured female free clinic patients who are low socio-economic status and lack access to healthcare resources. Free clinics provide free or reduced fee healthcare to individuals who lack access to primary care and are socio-economically disadvantaged. While approximately half of free clinic patients are women, there is a paucity of comprehensive health-related data for female free clinic patients. US born English, non-US born English, and Spanish speaking female free clinic patients completed a self-administered survey using a standardized women's HRQoL measure in Fall 2014 (N = 389). Female free clinic patients reported lower HRQoL on all aspects of women's health compared to the US baseline scores, and were less likely to utilize preventive care including: mammograms, Pap smear, and HPV vaccination compared to the US general population. Spanish speakers reported a higher percentage of having had mammography and Pap smear, and heard about HPV compared to the other two groups. US born English speakers reported lower levels of HRQoL in vasomotor symptoms and sleep symptoms, and the lowest percentage of breast health and Pap smear screenings compared to non-US born English and Spanish speakers. Non-US born English speakers reported higher preference for female physician compared to US born English speakers and Spanish speakers. Free clinic female patients need preventative interventions and educational opportunities to improve their overall HRQoL.

  7. Seniors' perspectives on care: a case study of the Alex Seniors health clinic, Calgary.

    Science.gov (United States)

    Shaw, Marta; Rypien, Candace; Drummond, Neil; Harasym, Patricia; Nixon, Lara

    2015-02-25

    Primary care initiatives face an imperative to not only reduce barriers to care for their patients but also to uniquely accommodate the complex needs of at-risk patient populations. Patient-centered multidisciplinary care team models for primary care, like the Alex Seniors Clinic, are one approach for providing comprehensive care for marginalized seniors. The purpose of this qualitative study was to explore patient perspectives on the responsiveness of the Alex Seniors Clinic to their stated health needs. Themes reflected participants' perspectives on factors impacting their health needs as vulnerable seniors as well as on the measures that the Alex Seniors Clinic has taken to meet those needs. Factors impacting health included: the nature of their relationships to the physical environment in which they lived, the nature of the relationships they had to others in that environment, and independence and autonomy. Participants identified accessibility, respect and support, and advocacy as the ways in which the clinic was working to address those health needs. While respect and support, as well as advocacy, effectively addressed some patient needs, participants felt that accessibility problems continue to be health-related barriers for clinic patients. This may be due to the fact that issues of accessibility reflect larger community and social problems. Nevertheless, it is only through engaging the patient community for input on clinic approaches that an understanding can be gained of how closely a clinic's care goals are currently aligning with patient perspectives of the care and services they receive.

  8. Radiometric system for clinical applications in the National Health System

    International Nuclear Information System (INIS)

    Mesa Perez, G.; Arteche Diaz, R.; Camejo Batista, A.; Fonfria Bragado, C.

    2013-01-01

    In this paper it is presented the radiometric detection system SRNIC-02, manufactured at CEADEN. The system has three major components: a well-type Nal(TI) scintillator detector with its collimator, a measurement module, and the application software, which allows fixing the working parameters of the system, as well as the acquisition and processing of data. The system has two main applications in the National Health System, one for the quality control in Radiopharmacy, and in RIA/IRMA blood tests. There are 16 systems installed, in 13 provinces of the country up to this date. (Author)

  9. Clinical Trials in Dentistry: A Cross-sectional Analysis of World Health Organization-International Clinical Trial Registry Platform.

    Science.gov (United States)

    Sivaramakrishnan, Gowri; Sridharan, Kannan

    2016-06-01

    Clinical trials are the back bone for evidence-based practice (EBP) and recently EBP has been considered the best source of treatment strategies available. Clinical trial registries serve as databases of clinical trials. As regards to dentistry in specific data on the number of clinical trials and their quality is lacking. Hence, the present study was envisaged. Clinical trials registered in WHO-ICTRP (http://apps.who.int/trialsearch/AdvSearch.aspx) in dental specialties were considered. The details assessed from the collected trials include: Type of sponsors; Health condition; Recruitment status; Study design; randomization, method of randomization and allocation concealment; Single or multi-centric; Retrospective or prospective registration; and Publication status in case of completed studies. A total of 197 trials were identified. Maximum trials were from United States (n = 30) and United Kingdom (n = 38). Seventy six trials were registered in Clinical Trials.gov, 54 from International Standards of Reporting Clinical Trials, 13 each from Australia and New Zealand Trial Register and Iranian Registry of Clinical Trials, 10 from German Clinical Trial Registry, eight each from Brazilian Clinical Trial Registry and Nederland's Trial Register, seven from Japan Clinical Trial Registry, six from Clinical Trial Registry of India and two from Hong Kong Clinical Trial Registry. A total of 78.7% studies were investigator-initiated and 64% were completed while 3% were terminated. Nearly four-fifths of the registered trials (81.7%) were interventional studies of which randomized were the large majority (94.4%) with 63.2% being open label, 20.4% using single blinding technique and 16.4% were doubled blinded. The number, methodology and the characteristics of clinical trials in dentistry have been noted to be poor especially in terms of being conducted multi-centrically, employing blinding and the method for randomization and allocation concealment. More emphasis has to be

  10. Using a plant health system framework to assess plant clinic performance in Uganda

    DEFF Research Database (Denmark)

    Danielsen, Solveig; Matsiko, Frank B.

    2016-01-01

    and expand, new analytical frameworks and tools are needed to identify factors influencing performance of services and systems in specific contexts, and to guide interventions. In this paper we apply a plant health system framework to assess plant clinic performance, using Uganda as a case study...... factors, influenced by basic operational and financial concerns, inter-institutional relations and public sector policies. Overall, there was a fairly close match between the plant health system attributes and plant clinic performance, suggesting that the framework can help explain system functioning....... A comparative study of plant clinics was carried out between July 2010 and September 2011 in the 12 districts where plant clinics were operating at that time. The framework enabled us to organise multiple issues and identify key features that affected the plant clinics. Clinic performance was, among other...

  11. Wiki Activities in Blended Learning for Health Professional Students: Enhancing Critical Thinking and Clinical Reasoning Skills

    Science.gov (United States)

    Snodgrass, Suzanne

    2011-01-01

    Health professionals use critical thinking, a key problem solving skill, for clinical reasoning which is defined as the use of knowledge and reflective inquiry to diagnose a clinical problem. Teaching these skills in traditional settings with growing class sizes is challenging, and students increasingly expect learning that is flexible and…

  12. A decade of the International Journal of Clinical and Health Psychology (2001-2010

    Directory of Open Access Journals (Sweden)

    Izabela Zych

    2011-01-01

    and that the journal has published works of authors from 29 different countries. The highest percentages were found for ex post facto studies, works on test validation and adaptation and adult clinical samples. These results are in agreement with the journal's mission of promoting advancement in clinical and health psychology and show that it is a truly international journal.

  13. Financial Analysis of Behavioral Health Services in a Pediatric Endocrinology Clinic.

    Science.gov (United States)

    Yarbro, Jessica L; Mehlenbeck, Robyn

    2016-09-01

    This article addresses a current need in psychological practice by describing a financially feasible model that moves toward integrated care of behavioral health services in a pediatric endocrinology clinic. Financial information (costs and revenue associated with behavioral health services) for the clinic, over an 18-month period (July 2012 to December 2013), was obtained through the hospital's financial department. The clinic meets one half day per week. Over the 18-month period, the behavioral health services generated a net gain of $3661.45 in the favor of the clinic. We determined that the psychologist and clinical psychology residents needed to see a total of four patients per half-day clinic for the clinic to "break-even." We describe one financially feasible way of integrating behavioral health services into a pediatric endocrinology clinic in the hope that this will be generalizable to other medical settings. © The Author 2015. Published by Oxford University Press on behalf of the Society of Pediatric Psychology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  14. Medication Abortion within a Student Health Care Clinic: A Review of the First 46 Consecutive Cases

    Science.gov (United States)

    Godfrey, Emily M.; Bordoloi, Anita; Moorthie, Mydhili; Pela, Emily

    2012-01-01

    Objective: Medication abortion with mifepristone and misoprostol has been available in the United States since 2000. The authors reviewed the first 46 medication abortion cases conducted at a university-based student health care clinic to determine the safety and feasibility of medication abortion in this type of clinical setting. Participants:…

  15. Esthetic Outcomes of Immediately Loaded Locking Taper Implants in the Anterior Maxilla: A Case Series Study.

    Science.gov (United States)

    Lombardo, Giorgio; Corrocher, Giovanni; Pighi, Jacopo; Mascellaro, Anna; Marincola, Mauro; Nocini, Per Francesco

    2016-06-01

    The purpose of this study was to evaluate the esthetic outcome of single-tooth locking taper connection implants placed in the anterior maxilla following a postextractive nonfunctional loading protocol. This preliminary clinical study involving 16 patients evaluated the results of 21 implants placed in areas with high esthetic value. For each implant the pink esthetic score, white esthetic score, cumulative survival rate, and health status of peri-implant tissues were evaluated. The cumulative survival rate was 100% 2 years after prosthetic loading, and the mean total pink esthetic score/white esthetic score was 16.9 ± 1.14 on a maximum value of 20. There was excellent plaque control in all patients, and inflammation indices were within the norm. Within the limits of this study, this immediate nonfunctional loading protocol seems to be a successful procedure esthetically and for the maintenance of peri-implant soft tissues.

  16. Identifying mental health services in clinical genetic settings.

    Science.gov (United States)

    Cappelli, M; Esplen, M J; Wilson, B J; Dorval, M; Bottorff, J L; Ly, M; Carroll, J C; Allanson, J; Humphreys, E; Rayson, D

    2009-10-01

    The purpose of this study was to examine the mental health needs of individuals at risk for adult onset hereditary disorder (AOHD) from the perspective of their genetic service providers, as it is unknown to what extent psychosocial services are required and being met. A mail-out survey was sent to 281 providers on the membership lists of the Canadian Association of Genetic Counsellors and the Canadian College of Medical Geneticists. The survey assessed psychosocial issues that were most commonly observed by geneticists, genetic counsellors (GCs), and nurses as well as availability and types of psychosocial services offered. Of the 129 respondents, half of genetic service providers reported observing signs of depression and anxiety, while 44% noted patients' concerns regarding relationships with family and friends. In terms of providing counselling to patients, as the level of psychological risk increased, confidence in dealing with these issues decreased. In addition, significantly more GCs reported that further training in psychosocial issues would be most beneficial to them if resources were available. As a feature of patient care, it is recommended that gene-based predictive testing include an integrative model of psychosocial services as well as training for genetic service providers in specific areas of AOHD mental health.

  17. School-Based Health Clinics: An Analysis of the Johns Hopkins Study. Research Developments.

    Science.gov (United States)

    Demsko, Tobin W.

    School-based health clinics, adolescent pregnancy prevention programs offering comprehensive health services, represent the latest initiative to reduce the incidence of teenage pregnancy. Researchers at Johns Hopkins University designed and administered a pregnancy prevention program which offered sexuality education and family planning services…

  18. 75 FR 47310 - Solicitation for Nominations for New Clinical Preventive Health Topics To Be Considered for...

    Science.gov (United States)

    2010-08-05

    ... following set of criteria: Public health importance (burden of suffering, potential of preventive service to.../gynecology). c. Public health importance (burden of disease/suffering, potential of preventive service to... accomplishes these goals through scientific research and promotion of improvements in clinical practice...

  19. Use of Clinical Health Information Technology in Nursing Homes: Nursing Home Characteristics and Quality Measures

    Science.gov (United States)

    Spinelli-Moraski, Carla

    2014-01-01

    This study compares quality measures among nursing homes that have adopted different levels of clinical health information technology (HIT) and examines the perceived barriers and benefits of the adoption of electronic health records as reported by Nursing Home Administrators and Directors of Nursing. A cross-sectional survey distributed online to…

  20. Incidence of dog bite injuries and clinical rabies in a tertiary health ...

    African Journals Online (AJOL)

    Background: It is widely recognized that rabies is grossly under-reported even though it is a notifiable disease and a lack of accurate figures has rendered rabies a low public health and veterinary priority. This study aimed at determining the incidence of dog bite injuries and clinical rabies in a tertiary health care centre.

  1. Public health nurses perception of clinical leadership in Ireland: narrative descriptions.

    Science.gov (United States)

    Carney, Marie

    2009-05-01

    The aim of the study was to identify how clinical leadership skills are perceived by Public Health Nurses in the course of their everyday work and the effectiveness and consequences of such skills in primary care delivery. Public health nurses deliver primary care to children and adults as part of small teams or in individual situations. Leadership skills are needed to fulfil their many roles. Rigorous analysis of narrative interviews with public health nurses working in primary care environments in Ireland was undertaken. Narrative information was obtained by having conversations with 20 public health nurses relating to their perceptions on what clinical leadership meant to them and how their leadership skills influenced effective primary care delivery. Analysis of conversations identified the tensions existing between the various roles and responsibilities of the public health nurse and other primary care workers. This tension was perceived by the nurses as being the main barrier to effective primary care delivery from their perspective. Clinical leadership is viewed narrowly by public health nurses as management skills rather than leadership skills were mainly identified. Education for the role was identified as a critical success factor. RELEVANCE TO NURSE MANAGERS: Public health nurses are well placed to shape and influence health service culture through effective clinical leadership.

  2. Obstacles to Successful Implementation of eHealth Applications into Clinical Practice.

    Science.gov (United States)

    Voogt, Marianne P; Opmeer, Brent C; Kastelein, Arnoud W; Jaspers, Monique W M; Peute, Linda W

    2018-01-01

    eHealth can improve healthcare worldwide, and scientific research should provide evidence on the efficacy, safety and added value of such interventions. For successful implementation of eHealth interventions into clinical practice, barriers need to be anticipated. We identified seven barriers by interviewing health professionals in the Dutch healthcare system. These barriers covered three topics: financing, human factors and organizational factors. This paper discusses their potential impact on eHealth uptake. Bridging the gap between studies to assess effective eHealth interventions and their value-based implementation in healthcare is much needed.

  3. Patient experiences with full electronic access to health records and clinical notes through the My HealtheVet Personal Health Record Pilot: qualitative study.

    Science.gov (United States)

    Woods, Susan S; Schwartz, Erin; Tuepker, Anais; Press, Nancy A; Nazi, Kim M; Turvey, Carolyn L; Nichol, W Paul

    2013-03-27

    Full sharing of the electronic health record with patients has been identified as an important opportunity to engage patients in their health and health care. The My HealtheVet Pilot, the initial personal health record of the US Department of Veterans Affairs, allowed patients and their delegates to view and download content in their electronic health record, including clinical notes, laboratory tests, and imaging reports. A qualitative study with purposeful sampling sought to examine patients' views and experiences with reading their health records, including their clinical notes, online. Five focus group sessions were conducted with patients and family members who enrolled in the My HealtheVet Pilot at the Portland Veterans Administration Medical Center, Oregon. A total of 30 patients enrolled in the My HealtheVet Pilot, and 6 family members who had accessed and viewed their electronic health records participated in the sessions. Four themes characterized patient experiences with reading the full complement of their health information. Patients felt that seeing their records positively affected communication with providers and the health system, enhanced knowledge of their health and improved self-care, and allowed for greater participation in the quality of their care such as follow-up of abnormal test results or decision-making on when to seek care. While some patients felt that seeing previously undisclosed information, derogatory language, or inconsistencies in their notes caused challenges, they overwhelmingly felt that having more, rather than less, of their health record information provided benefits. Patients and their delegates had predominantly positive experiences with health record transparency and the open sharing of notes and test results. Viewing their records appears to empower patients and enhance their contributions to care, calling into question common provider concerns about the effect of full record access on patient well-being. While shared

  4. Infant oral health care: An invaluable clinical intervention

    Directory of Open Access Journals (Sweden)

    Kanika Singh Dhull

    2016-01-01

    Full Text Available Dental assessments and evaluations for children during their 1st year of life have been recommended by the American Academy of Pediatric Dentistry and the American Association of Pediatrics. Early dental intervention evaluates a child's risk status based on parental interviews and oral examinations. These early screenings present an opportunity to educate parents about the medical, dental, and cost benefits of preventive rather than restorative care and may be more effective in reducing early childhood caries than traditional infectious disease models. A comprehensive infant oral care program includes: (1 risk assessments at regularly scheduled dental visits, (2 preventive treatments such as fluoride varnishes or sealants, (3 parental education on the correct methods to clean the baby's mouth, and (4 establishment of dental home and use of anticipatory guidance. The present article highlights the important guidelines of infant oral health care.

  5. Adolescent postabortion groups: risk reduction in a school-based health clinic.

    Science.gov (United States)

    Daly, Joan Ziegler; Ziegler, Robert; Goldstein, Donna J

    2004-10-01

    A short-term postabortion group for adolescents was developed. Three groups were conducted in an adolescent mental health clinic within an urban high school-based health clinic. The clinical group experiences offered the adolescents an opportunity to integrate the experience of pregnancy and the abortion decision into their lives. At follow up, adolescents who participated in th postabortion counseling group indicated that they chose and used a method of birth control, did not repeat an unplanned pregnancy, and remained in high school.

  6. A cross-sectional assessment of biomarker levels around implants versus natural teeth in periodontal maintenance patients.

    Science.gov (United States)

    Recker, Erica N; Avila-Ortiz, Gustavo; Fischer, Carol L; Pagan-Rivera, Keyla; Brogden, Kim A; Dawson, Deborah V; Elangovan, Satheesh

    2015-02-01

    Recent studies point to the clinical utility of using peri-implant sulcular fluid (PISF) as a valuable diagnostic aid for monitoring peri-implant tissue health. The objectives of this study are to determine the levels of key biomarkers in PISF in periodontal maintenance participants and compare them with their corresponding levels in gingival crevicular fluid (GCF) obtained from the same participants. PISF and GCF were collected from an implant and a contralateral natural tooth after the clinical examination of 73 participants. The levels of interleukin (IL)-1α, IL-1β, IL-6, IL-8, IL-10, IL-12, IL-17A, tumor necrosis factor (TNF)-α, C-reactive protein, osteoprotegerin, leptin, and adiponectin were determined using multiplex proteomic immunoassays. The correlation of biomarker concentrations between GCF versus PISF, within GCF or PISF, and with several covariates (age, brushing frequency, days since professional cleaning, probing depth [PD], and plaque index) were also determined. Significantly higher levels of IL-17A (P = 0.02) and TNF-α (P = 0.03) were noted in PISF when compared with their levels in GCF. Significant positive correlations were noted between the concentrations of cytokines in PISF versus their levels in GCF. Among the covariates, a significant positive correlation was noted between mean PDs around implants and levels of IL-1β (P periodontal maintenance patients, which is critical information before establishing PISF as a diagnostic fluid to monitor peri-implant health.

  7. An ethnography of clinic "noise" in a community-based, promotora-centered mental health intervention.

    Science.gov (United States)

    Getrich, Christina; Heying, Shirley; Willging, Cathleen; Waitzkin, Howard

    2007-07-01

    Community-based health interventions have emerged as a growing focus for anthropological research. The application of ethnographic approaches in clinical practice settings reveals that community-based interventions must grapple with "noise," or unanticipated factors such as patients' own perceptions of illness and treatment, primary care providers' non-adherence to guidelines-based treatment, the social dynamics of the clinic site itself, and incomplete understanding and acceptance of an intervention by a clinic's staff members. Such noise can influence the implementation and quality of treatment. Thus, identifying clinic-based noise is critical in assessments of fidelity to intervention protocols as well as outcomes of community-based interventions. This paper highlights findings from an evaluation of a mental health intervention focusing on the role of promotoras (briefly trained, non-professional community health workers) as mental health practitioners in two urban New Mexico, USA, community health centers. Our research identified three areas of clinic-based noise: the clinics' physical ability to "absorb" the intervention, the challenges of co-worker instability and interpersonal relationships, and balancing extra workplace demands. The findings demonstrate the value of ethnographic approaches in community-based intervention research.

  8. Self-esteem, stress and self-rated health in family planning clinic patients

    Directory of Open Access Journals (Sweden)

    Young Rodney

    2004-06-01

    Full Text Available Abstract Background The independent effects of stress on the health of primary care patients might be different for different types of clinic populations. This study examines these relationships in a low-income female population of patients attending a family planning clinic. Methods This study investigated the relevance of different sources of personal stress and social support to self-rated health, adjusting for mental health, health behavior and demographic characteristics of subjects. Five hundred women who attended family planning clinics were surveyed and 345 completed the form for a response rate of 72 percent. Results Multiple logistic regression analysis revealed that liking oneself was related to good self-rated health (Odds ratio = 7.11, but stress or support from children, parents, friends, churches or spouses were not significant. White non-Hispanic and non-white non-Hispanic respondents had lower odds of reporting good self-rated health than Hispanic respondents (odds ratios were 2.87 and 2.81, respectively. Exercising five or more days per week also was related to good self-rated health. Smoking 20 or more cigarettes per day, and obese III were negatively related to good self-rated health (odds ratios were .19 and .22, respectively with corresponding p-values equal to .0043 and .0332. Conclusions Among younger low-income women, addressing low self-esteem might improve health status.

  9. Private prayer associations with depression, anxiety and other health conditions: an analytical review of clinical studies.

    Science.gov (United States)

    Anderson, James W; Nunnelley, Paige A

    2016-09-01

    To critically analyze appropriate clinical studies to assess the relationship between health conditions and the frequency of private prayer. Private prayer is defined as individuals praying for themselves. Using PubMed and other search engines, we identified over 300 articles reporting relationships between prayer and health conditions. We identified 41 observational clinical studies that evaluated the relationship between private prayer and health conditions. Prayer scores of 5 to 1 were assigned to studies, with 5 being private prayer for health and 1 being prayer in combination with meditation or Bible study. Frequency scores ranged from 3 to 1 with 3 being twice daily or more and 0 when frequency was not assessed. Studies were ranked from 8 to 1 based on the sum of Prayer and Frequency Scores. Twenty-one studies had Prayer-Frequency scores of 5 to 8, indicating that they evaluated private prayer (praying for one's own health) of suitable frequency in association with health conditions. Nine of 11 studies indicated that private prayer was associated with a significantly lower prevalence of depression (P value, prayer in four studies (P value, P prayer (P prayer did not have a significant effect on physical health or blood pressure. The reported observational studies suggest that frequent private prayer is associated with a significant benefit for depression, optimism, coping, and other mental health conditions such as anxiety. Controlled clinical trials are required to critically assess the associations of private prayer and health conditions.

  10. Evaluation of a hand hygiene campaign in outpatient health care clinics.

    Science.gov (United States)

    Kukanich, Kate Stenske; Kaur, Ramandeep; Freeman, Lisa C; Powell, Douglas A

    2013-03-01

    To improve hand hygiene in two outpatient health care clinics through the introduction of a gel sanitizer and an informational poster. In this interventional study, health care workers at two outpatient clinics were observed for frequency of hand hygiene (attempts versus opportunities). Gel sanitizer and informational posters were introduced together as an intervention. Direct observation of the frequency of hand hygiene was performed during baseline, intervention, and follow-up. A poststudy survey of health care workers was also distributed and collected. In both clinics, the frequency of hand hygiene was poor at baseline (11% and 21%) but improved significantly after intervention (36% and 54%) and was maintained through the follow-up period (32% and 51%). Throughout the study, postcontact hand hygiene was observed significantly more often than precontact hand hygiene. In both clinics, health care workers reported a preference for soap and water; yet observations showed that when the intervention made gel sanitizer available, sanitizer use predominated. Fifty percent of the surveyed health care workers considered the introduction of gel sanitizer to be an effective motivating tool for improving hand hygiene. Hand hygiene performance by health care workers in outpatient clinics may be improved through promoting the use of gel sanitizer and using informational posters. Compared with surveys, direct observation by trained observers may provide more accurate information about worker preferences for hand hygiene tools.

  11. Mobile phone based clinical microscopy for global health applications.

    Directory of Open Access Journals (Sweden)

    David N Breslauer

    Full Text Available Light microscopy provides a simple, cost-effective, and vital method for the diagnosis and screening of hematologic and infectious diseases. In many regions of the world, however, the required equipment is either unavailable or insufficiently portable, and operators may not possess adequate training to make full use of the images obtained. Counterintuitively, these same regions are often well served by mobile phone networks, suggesting the possibility of leveraging portable, camera-enabled mobile phones for diagnostic imaging and telemedicine. Toward this end we have built a mobile phone-mounted light microscope and demonstrated its potential for clinical use by imaging P. falciparum-infected and sickle red blood cells in brightfield and M. tuberculosis-infected sputum samples in fluorescence with LED excitation. In all cases resolution exceeded that necessary to detect blood cell and microorganism morphology, and with the tuberculosis samples we took further advantage of the digitized images to demonstrate automated bacillus counting via image analysis software. We expect such a telemedicine system for global healthcare via mobile phone -- offering inexpensive brightfield and fluorescence microscopy integrated with automated image analysis -- to provide an important tool for disease diagnosis and screening, particularly in the developing world and rural areas where laboratory facilities are scarce but mobile phone infrastructure is extensive.

  12. Experience from mental health clinics held during medical service camps in Fiji.

    Science.gov (United States)

    Sivakumaran, Hemalatha; George, Kuruvilla; Naker, Gunu; Nadanachandran, Kathir

    2015-12-01

    We aim to describe the experience and findings of mental health clinics held during medical service camps in the rural settings of Fiji. Descriptive data collated at the end of the medical camps across 2011-2014 are used to highlight the main findings. The exposure to mental health assessments and brief interventions at these camps was a validating experience for both individuals and medical students attending the clinics. The most common presentations can be categorised under symptoms of depression, anxiety and relationship problems. The accessibility of mental health support services is a challenge in Fiji. Medical service camps can form an important pathway in promoting mental health awareness, especially amongst the rural communities of Fiji, and a useful platform for medical students to acquire some clinical exposure. © The Royal Australian and New Zealand College of Psychiatrists 2015.

  13. Is it just religious practice? Exploring patients' reasons for choosing a faith-based primary health clinic over their local public sector primary health clinic.

    Science.gov (United States)

    Porter, James D; Bresick, Graham

    2017-06-29

    Person-centred, re-engineered primary health care (PHC) is a national and global priority. Faith-based health care is a significant provider of PHC in sub-Saharan Africa, but there is limited published data on the reasons for patient choice of faith-based health care, particularly in South Africa. The primary objective was to determine and explore the reasons for patient choice of a faith-based primary care clinic over their local public sector primary care clinic, and secondarily to determine to what extent these reasons were influenced by demography. The study was conducted at Jubilee Health Centre (JHC), a faith-based primary care clinic attached to Jubilee Community Church in Cape Town, South Africa. Focus groups, using the nominal group technique, were conducted with JHC patients and used to generate ranked reasons for attending the clinic. These were collated into the top 15 reasons and incorporated into a quantitative questionnaire which was administered to adult patients attending JHC. A total of 164 patients were surveyed (a response rate of 92.4%) of which 68.3% were female and 57.9% from the Democratic Republic of the Congo (DRC). Of patients surveyed, 98.2% chose to attend JHC because 'the staff treat me with respect', 96.3% because 'the staff are friendly' and 96.3% because 'the staff take time to listen to me'. The reason 'it is a Christian clinic' was chosen by 70.1% of patients. 'The staff speak my home language' was given as a reason by 61.1% of DRC patients and 37.1% of South African patients. 'The clinic is close to me' was chosen by 66.6% of Muslims and 40.8% of Christians. Patients chose to attend JHC (a faith-based primary care clinic) because of the quality of care received. They emphasised the staff-patient relationship and patient-centredness rather than the clinic's religious practices (prayer with patients). These findings may be important in informing efforts to improve public sector primary care.

  14. Federated querying architecture with clinical & translational health IT application.

    Science.gov (United States)

    Livne, Oren E; Schultz, N Dustin; Narus, Scott P

    2011-10-01

    We present a software architecture that federates data from multiple heterogeneous health informatics data sources owned by multiple organizations. The architecture builds upon state-of-the-art open-source Java and XML frameworks in innovative ways. It consists of (a) federated query engine, which manages federated queries and result set aggregation via a patient identification service; and (b) data source facades, which translate the physical data models into a common model on-the-fly and handle large result set streaming. System modules are connected via reusable Apache Camel integration routes and deployed to an OSGi enterprise service bus. We present an application of our architecture that allows users to construct queries via the i2b2 web front-end, and federates patient data from the University of Utah Enterprise Data Warehouse and the Utah Population database. Our system can be easily adopted, extended and integrated with existing SOA Healthcare and HL7 frameworks such as i2b2 and caGrid.

  15. The gut microbiota and host health: a new clinical frontier.

    Science.gov (United States)

    Marchesi, Julian R; Adams, David H; Fava, Francesca; Hermes, Gerben D A; Hirschfield, Gideon M; Hold, Georgina; Quraishi, Mohammed Nabil; Kinross, James; Smidt, Hauke; Tuohy, Kieran M; Thomas, Linda V; Zoetendal, Erwin G; Hart, Ailsa

    2016-02-01

    Over the last 10-15 years, our understanding of the composition and functions of the human gut microbiota has increased exponentially. To a large extent, this has been due to new 'omic' technologies that have facilitated large-scale analysis of the genetic and metabolic profile of this microbial community, revealing it to be comparable in influence to a new organ in the body and offering the possibility of a new route for therapeutic intervention. Moreover, it might be more accurate to think of it like an immune system: a collection of cells that work in unison with the host and that can promote health but sometimes initiate disease. This review gives an update on the current knowledge in the area of gut disorders, in particular metabolic syndrome and obesity-related disease, liver disease, IBD and colorectal cancer. The potential of manipulating the gut microbiota in these disorders is assessed, with an examination of the latest and most relevant evidence relating to antibiotics, probiotics, prebiotics, polyphenols and faecal microbiota transplantation. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  16. Intentional Modelling: A Process for Clinical Leadership Development in Mental Health Nursing.

    Science.gov (United States)

    Ennis, Gary; Happell, Brenda; Reid-Searl, Kerry

    2016-05-01

    Clinical leadership is becoming more relevant for nurses, as the positive impact that it can have on the quality of care and outcomes for consumers is better understood and more clearly articulated in the literature. As clinical leadership continues to become more relevant, the need to gain an understanding of how clinical leaders in nursing develop will become increasingly important. While the attributes associated with effective clinical leadership are recognized in current literature there remains a paucity of research on how clinical leaders develop these attributes. This study utilized a grounded theory methodology to generate new insights into the experiences of peer identified clinical leaders in mental health nursing and the process of developing clinical leadership skills. Participants in this study were nurses working in a mental health setting who were identified as clinical leaders by their peers as opposed to identifying them by their role or organizational position. A process of intentional modeling emerged as the substantive theory identified in this study. Intentional modeling was described by participants in this study as a process that enabled them to purposefully identify models that assisted them in developing the characteristics of effective clinical leaders as well as allowing them to model these characteristics to others. Reflection on practice is an important contributor to intentional modelling. Intentional modelling could be developed as a framework for promoting knowledge and skill development in the area of clinical leadership.

  17. Towards integration of health economics into medical education and clinical practice in Saudi Arabia.

    Science.gov (United States)

    Da'ar, Omar B; Al Shehri, Ali M

    2015-04-01

    In an era of expanding health sectors and rising costs, doctors are expected to have a working knowledge of health economics to better use resources and improve outcomes and quality of health care. This article recognizes the dearth of knowledge and application of economic analyses in medical education and clinical practice in Saudi Arabia. In particular, it highlights the desirability of knowledge of health economics in ensuring certain competencies in medical education and the rationale for inviting doctors to apply knowledge of economics in Saudi Arabia. In addition, the article discusses challenges that hinder integrating health economics into clinical practice. Furthermore, the article typifies some of the important economic phenomena that physicians need to discern. Besides, the article provides implications for incorporating economic analysis into medical education and clinical practice in Saudi Arabia. Finally, the article concludes by demonstrating how health economics can enhance doctors' knowledge and recommends the country to move towards integrating health economics into medical education and clinical practice for best practice.

  18. Impact and user satisfaction of a clinical information portal embedded in an electronic health record.

    Science.gov (United States)

    Tannery, Nancy H; Epstein, Barbara A; Wessel, Charles B; Yarger, Frances; LaDue, John; Klem, Mary Lou

    2011-01-01

    In 2008, a clinical information tool was developed and embedded in the electronic health record system of an academic medical center. In 2009, the initial information tool, Clinical-e, was superseded by a portal called Clinical Focus, with a single search box enabling a federated search of selected online information resources. To measure the usefulness and impact of Clinical Focus, a survey was used to gather feedback about users' experience with this clinical resource. The survey determined what type of clinicians were using this tool and assessed user satisfaction and perceived impact on patient care decision making. Initial survey results suggest the majority of respondents found Clinical Focus easy to navigate, the content easy to read, and the retrieved information relevant and complete. The majority would recommend Clinical Focus to their colleagues. Results indicate that this tool is a promising area for future development.

  19. Effect of a chlorhexidine-containing brush-on gel on peri-implant mucositis

    DEFF Research Database (Denmark)

    Hallström, H; Lindgren, S; Twetman, S

    2017-01-01

    ) and pocket probing depth (PPD). RESULTS: The groups were balanced at baseline. The daily use of the chlorhexidine-containing gel resulted in reduced BOP after 4 and 12 weeks compared with the control group (P PPD was significantly reduced (P

  20. IL-1RN gene polymorphism is associated with peri-implantitis

    NARCIS (Netherlands)

    Laine, Marja L.; Leonhardt, Asa; Roos-Jansaker, Ann-Marie; Salvador Pena, A.; van Winkelhoff, Arie Jan; Winkel, Edwin G.; Renvert, Stefan

    Objectives: Interleukin (IL)-1 alpha, IL-1 beta and their natural specific inhibitor IL-1 receptor antagonist (IL-1ra) play a key role in the regulation of the inflammatory response in periodontal tissues. Polymorphisms in the IL-1 gene cluster have been associated with severe adult periodontitis.

  1. General Diseases Influence on Peri-Implantitis Development: a Systematic Review

    Directory of Open Access Journals (Sweden)

    Zygimantas Guobis

    2016-09-01

    Full Text Available Objectives: To systematically review the influence of systemic diseases or medications used in their treatment on the dental implant therapy success. Material and Methods: The search strategy was implemented on the National Library of Medicine database (MEDLINE (Ovid and EMBASE electronic databases between January 2006 and January 2016. Human studies with available English articles analysing the relationship between dental implant therapy success and systemic diseases, such as diabetes mellitus, AIDS/HIV, rheumatoid arthritis, osteoporosis, Crohn’s disease, cardiovascular diseases, scleroderma, Sjögren’s syndrome, lichen planus, ectodermal dysplasia, post-transplantation status, were included in present review according to the PRISMA guidelines. The review protocol was registered on PROSPERO system with the code CRD42016033662. Results: Present review included forty one retrospective and prospective follow-up studies, case-control studies, case report series and cohort studies. Despite some limitations this study reveals positive results of implantation in most systemic conditions that should be interpreted with caution. Influence of cardiovascular diseases on the dental implantation success should be explored deeply, because of controversial results and likelihood of comorbidity expressed by a history of cardiovascular diseases and periodontitis. There is only a weak relationship with bone density in osteoporosis and implant failure. All the other diseases did not show significant effect on implantation success. Conclusions: Recent studies with low strength of evidence and controversy show that systemic diseases may have potential effect on the success of implantation, but further detailed studies are needed to provide these findings.

  2. A case of peri-implantitis and osteoradionecrosis arising around dental implants placed before radiation therapy

    OpenAIRE

    Teramoto, Yuji; Kurita, Hiroshi; Kamata, Takahiro; Aizawa, Hitoshi; Yoshimura, Nobuhiko; Nishimaki, Humihiro; Takamizawa, Kazunobu

    2016-01-01

    A little is known about the effect of radiotherapy on the dental implants that have previously been osseointegrated and charged. Here, we reported a case of osteoradionecrosis which arose around dental implants placed before radiation therapy.

  3. Spatiotemporal expression of endogenous opioid processing enzymes in mouse uterus at peri-implantation.

    Science.gov (United States)

    Wu, Weiwei; Kong, Shuangbo; Wang, Bingyan; Chen, Yongjie; Wang, Haibin

    2016-02-01

    Successful implantation requires intimate interactions between a competent blastocyst and a receptive uterus. We recently demonstrated that the aberrant activation of opioid signaling by exogenous ligands adversely affects preimplantation embryonic development and subsequent implantation in mice. However, the underlying machinery governing the dynamic homeostasis of the endogenous opioid system in the uterus during early pregnancy remains elusive. We now show that all three major endogenous opioid precursors are spatiotemporally expressed in the uterus during early pregnancy. Moreover, we observe the well-coordinated expression of the synthetic enzyme prohormone convertases 1/3 (PC1/3) at lower levels and of its inhibitor proprotein convertase subtilisin/kexin type 1 inhibitor (Pcsk1n) and the degrading enzyme membrane metallo-endopeptidase (MME) at higher levels in the receptive uterus. Both estrogen and progestin tend to reduce the uterine levels of opioid ligand precursors in the ovariectomized mouse model. This tight regulation of the endogenous opioid system by PC1/3, Pcsk1n and MME has been further confirmed in physiologically related pseudopregnancy and delayed implantation mouse models. The coordinated regulation of opioid precursor biosynthesis and metabolism helps to create appropriate opioid signaling ensuring uterine receptivity for implantation. Thus, endogenous uterine opioid levels are primarily determined by the coordinated expressions of PC1/3, Pcsk1n and MME under the influence of ovarian progestin and estrogen. Our findings raise an additional cautionary note regarding the effects of opioid abuse on early pregnancy events.

  4. Effect of crown-to-implant ratio on peri-implant stress: a finite element analysis.

    Science.gov (United States)

    Verri, Fellippo Ramos; Batista, Victor Eduardo de Souza; Santiago, Joel Ferreira; Almeida, Daniel Augusto de Faria; Pellizzer, Eduardo Piza

    2014-12-01

    The aim of this study was to evaluate stress distribution in the fixation screws and bone tissue around implants in single-implant supported prostheses with crowns of different heights (10, 12.5, 15 mm - crown-to-implant ratio 1:1, 1.25:1, 1.5:1, respectively). It was designed using three 3-D models. Each model was developed with a mandibular segment of bone block including an internal hexagon implant supporting a screw-retained, single metal-ceramic crown. The crown height was set at 10, 12.5, and 15 mm with crown-to-implant ratio of 1:1, 1.25:1, 1.5:1, respectively. The applied forces were 200N (axial) and 100 N (oblique). The increase of crown height showed differences with the oblique load in some situations. By von Mises' criterion, a high stress area was concentrated at the implant/fixation screw and abutment/implant interfaces at crown-to-implant ratio of 1:1, 1.25:1, 1.5:1, respectively. Using the maximum principal criteria, the buccal regions showed higher traction stress intensity, whereas the distal regions showed the largest compressive stress in all models. The increase of C/I ratio must be carefully evaluated by the dentist since the increase of this C/I ratio is proportional to the increase of average stress for both screw fixation (C/I 1:1 to 1:1.25 ratio=30.1% and C/I 1:1 to 1:1.5 ratio=46.3%) and bone tissue (C/I 1:1 to 1:1.25 ratio=30% and C/I 1:1 to 1:1.5 ratio=51.5%). Copyright © 2014 Elsevier B.V. All rights reserved.

  5. Abutment height influences the effect of platform switching on peri-implant marginal bone loss.

    Science.gov (United States)

    Galindo-Moreno, Pablo; León-Cano, Ana; Monje, Alberto; Ortega-Oller, Inmaculada; O'Valle, Francisco; Catena, Andrés

    2016-02-01

    The purpose was to radiographically analyze and compare the marginal bone loss (MBL) between implants with different mismatching distance and to study the influence of the prosthetic abutment height on the MBL in association with the related mismatching distances. This retrospective study included 108 patients in whom 228 implants were placed, 180 with diameter of 4.5 mm and 48 with diameter of 5 mm. All patients received OsseoSpeed™ implants with internal tapered conical connection (Denstply Implants). Different mismatching distances were obtained, given that all implants were loaded with the same uni-abutment type (Lilac; Denstply Implants). Data were gathered on age, gender, bone substratum, smoking habits, previous history of periodontitis, and prosthetic features. MBL was analyzed radiographically at 6 and 18 months post-loading. Mixed linear analysis of mesial and distal MBL values yielded significant effects of abutment, implant diameter, follow-up period, bone substratum, smoking, and abutment × time interaction. MBL was greater at 18 vs. 6 months, for short vs. long abutments, for grafted vs. pristine bone, for a heavier smoking habit, and for implants with a diameter of 5.0 vs. 4.5 mm. Greater mismatching does not minimize the MBL; abutment height, smoking habit, and bone substratum may play a role in the MBL over the short- and medium term. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  6. Comparative study of longitudinal changes in peri-implant bone microstructure

    International Nuclear Information System (INIS)

    Suzuki, Yusuke; Matsunaga, Satoru; Abe, Shinichi; Ide, Yoshinobu; Usami, Akinobu

    2010-01-01

    The load applied to an implant is directly transmitted to the jaw and is considered to be one of the causes of remodeling of internal trabecular bones. However, the longitudinal changes during loading and the rearrangement of the trabecular bone structure are mostly unknown. The aim of this study was to clarify the changes in internal jaw bone structure longitudinally during natural tooth eruption as well as tooth extraction and post-implantation periods in a dog model by micro computed tomography (micro-CT). Maxillae of 16 male beagle dogs were used in this study. First, 4 dogs with all maxillary molar teeth erupted were euthanized as a control group. Next, 6 teeth consisting of the bilateral maxillary fourth premolars, and first and second molars were extracted from each of the 12 dogs. Then, 4 dogs of the tooth-extracted group were euthanized 3 months after extraction of the teeth. At this time, three implants were inserted in the left side of the maxilla of the remaining 8 dogs, and the superstructures were placed after 3 months. Four of these 8 dogs with implants were euthanized at 3 months and the other 4 at 1 year after placement of the superstructure. Then, the maxillary bone was removed from each dog as a specimen and sequential micro-CT images were taken. After reconstruction of three-dimensional images, morphological and metrical observation of the jaw trabecular bone structure was performed. A decrease of the trabecular bone in the tooth-extracted group was morphologically and morphometrically observed, whereas the implanted group showed thick, rich trabecular bone. Although a longitudinal decrease in the bone tissue volume was recognized both in the tooth-extracted and the implanted groups, the amount was smaller in the implanted group than in the tooth-extracted group. The results suggested that the application of load by implants in the case of tooth loss inhibits resorption of the alveolar bone and prevents thinning of the jaw. (author)

  7. Translocation of autogenous bone particles to improve peri-implant osteogenesis.

    NARCIS (Netherlands)

    Tabassum, A.; Walboomers, X.F.; Meijer, G.J.; Jansen, J.B.M.J.

    2012-01-01

    During the placement of titanium implants into bone, particles are loosened and translocated as a result of the inherent roughness of the surface. Such bone particles have been shown to play a significant role in new bone formation. Therefore, the aim of the present study was to establish a new

  8. Influence of controlled immediate loading and implant design on peri-implant bone formation.

    Science.gov (United States)

    Vandamme, Katleen; Naert, Ignace; Geris, Liesbet; Vander Sloten, Jozef; Puers, Robert; Duyck, Joke

    2007-02-01

    Tissue formation at the implant interface is known to be sensitive to mechanical stimuli. The aim of the study was to compare the bone formation around immediately loaded versus unloaded implants in two different implant macro-designs. A repeated sampling bone chamber with a central implant was installed in the tibia of 10 rabbits. Highly controlled loading experiments were designed for a cylindrical (CL) and screw-shaped (SL) implant, while the unloaded screw-shaped (SU) implant served as a control. An F-statistic model with alpha=5% determined statistical significance. A significantly higher bone area fraction was observed for SL compared with SU (pimplant contact occurred was the highest for SL and significantly different from SU (pimplant contact was observed, a loading (SL versus SU: p=0.0049) as well as an implant geometry effect (SL versus CL: p=0.01) was found, in favour of the SL condition. Well-controlled immediate implant loading accelerates tissue mineralization at the interface. Adequate bone stimulation via mechanical coupling may account for the larger bone response around the screw-type implant compared with the cylindrical implant.

  9. Functional studies of signaling pathways in peri-implantation development of the mouse embryo by RNAi

    Directory of Open Access Journals (Sweden)

    Bell Graham

    2005-12-01

    Full Text Available Abstract Background Studies of gene function in the mouse have relied mainly on gene targeting via homologous recombination. However, this approach is difficult to apply in specific windows of time, and to simultaneously knock-down multiple genes. Here we report an efficient method for dsRNA-mediated gene silencing in late cleavage-stage mouse embryos that permits examination of phenotypes at post-implantation stages. Results We show that introduction of Bmp4 dsRNA into intact blastocysts by electroporation recapitulates the genetic Bmp4 null phenotype at gastrulation. It also reveals a novel role for Bmp4 in the regulation the anterior visceral endoderm specific gene expression and its positioning. We also show that RNAi can be used to simultaneously target several genes. When applied to the three murine isoforms of Dishevelled, it leads to earlier defects than previously observed in double knock-outs. These include severe delays in post-implantation development and defects in the anterior midline and neural folds at headfold stages. Conclusion Our results indicate that the BMP4 signalling pathway contributes to the development of the anterior visceral endoderm, and reveal an early functional redundancy between the products of the murine Dishevelled genes. The proposed approach constitutes a powerful tool to screen the functions of genes that govern the development of the mouse embryo.

  10. Influence of peri-implant artifacts on bone morphometric analysis with micro-computed tomography.

    Science.gov (United States)

    Song, Jin Wook; Cha, Jung Yul; Bechtold, Till Edward; Park, Young Chel

    2013-01-01

    To determine the optimal dilation pixel size distance from the mini-implant interface needed to compensate for the metal artifact on micro-computed tomography (micro-CT) for bone morphometric analysis. A total of 72 self-drilling mini-implants were placed into the buccal alveolar bone of six male beagle dogs. After 12 weeks of orthodontic loading, specimens were harvested and scanned with micro-CT (Skyscan 1076) at a resolution of 9 μm. Using the reload plug-in and dilation procedure of CTAn, the percentage of bone-implant contact (BIC) and bone volume density (BV/TV, bone volume/total volume), respectively, were measured from one to seven pixels from the metal implant surface. Each pixel size of dilation (PSD) were compared with that of a ground histologic section, and the optimal PSD for bone morphometric analysis using micr