WorldWideScience

Sample records for dental behavior guidance

  1. Saudi dental students’ perceptions of pediatric behavior guidance techniques

    OpenAIRE

    Al-Jobair, Asma M; Al-Mutairi, Manal A.

    2015-01-01

    Background Dental students receive theoretical and clinical training in pediatric behavioral guidance techniques at university. Therefore, the content of the educational course and the degree of training in behavioral techniques may have an impact on the students’ perceptions and practice of such techniques. The purpose of this study was to evaluate Saudi dental students’ perceptions of behavior guidance techniques used in pediatric dentistry, and to assess the changes in their perceptions af...

  2. Dental implant surgery: planning and guidance

    Energy Technology Data Exchange (ETDEWEB)

    Lobregt, S.; Schillings, J.J.; Vuurberg, E. [MIMIT Easy Vision Advanced Development, Philips Medical Systems, Best (Netherlands)

    2001-11-01

    A prototype application has been developed for interactive planning of dental implants on the EasyVision workstation. The user is led step by step via virtual positioning of the implant to the design of a customized drill guide. (orig.)

  3. Managing Student Behavior during Large Group Guidance: What Works Best?

    Science.gov (United States)

    Quarto, Christopher J.

    2007-01-01

    Participants provided information pertaining to managing non-task-related behavior of students during large group guidance lessons. In particular, school counselors were asked often how often they provide large group guidance, the frequency of which students exhibit off-task and/or disruptive behavior during guidance lessons, and techniques they…

  4. 32 CFR 147.6 - Guidance D-Sexual behavior.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 1 2010-07-01 2010-07-01 false Guidance D-Sexual behavior. 147.6 Section 147.6... Guidance D—Sexual behavior. (a) The concern. Sexual behavior is a security concern if it involves a..., exploitation, or duress, or reflects lack of judgment or discretion. 1 Sexual orientation or preference may not...

  5. A Formal Investigation of the Organization of Guidance Behavior: Implications for Humans and Autonomous Guidance

    Science.gov (United States)

    Kong, Zhaodan

    Guidance behavior generated either by artificial agents or humans has been actively studied in the fields of both robotics and cognitive science. The goals of these two fields are different. The former is the automatic generation of appropriate or even optimal behavior, while the latter is the understanding of the underlying mechanism. Their challenges, though, are closely related, the most important one being the lack of a unified, formal and grounded framework where the guidance behavior can be modeled and studied. This dissertation presents such a framework. In this framework, guidance behavior is analyzed as the closed-loop dynamics of the whole agent-environment system. The resulting dynamics give rise to interaction patterns. The central points of this dissertation are that: first of all, these patterns, which can be explained in terms of symmetries that are inherent to the guidance behavior, provide building blocks for the organization of behavior; second, the existence of these patterns and humans' organization of their guidance behavior based on these patterns are the reasons that humans can generate successful behavior in spite of all the complexities involved in the planning and control. This dissertation first gives an overview of the challenges existing in both scientific endeavors, such as human and animal spatial behavior study, and engineering endeavors, such as autonomous guidance system design. It then lays out the foundation for our formal framework, which states that guidance behavior should be interpreted as the collection of the closed-loop dynamics resulting from the agent's interaction with the environment. The following, illustrated by examples of three different UAVs, shows that the study of the closed-loop dynamics should not be done without the consideration of vehicle dynamics, as is the common practice in some of the studies in both autonomous guidance and human behavior analysis. The framework, the core concepts of which are

  6. Guidance for commissioning NHS England dental conscious sedation services: a framework tool.

    Science.gov (United States)

    Howlett, Paul

    2014-01-01

    Conscious sedation is an integral part of modern day dental care and should be delivered through a high quality, effective and evidence-based approach. Commissioning of NHS dental services in England is currently under review by NHS England and the National Dental Commissioning Group. This group has identified the management of vulnerable people including anxious patients, as one of its priorities. The Society for the Advancement of Anaesthesia in Dentistry (SAAD) believes this provides an opportunity to influence the commissioning of NHS conscious sedation services. With this aim in mind,"Guidance for Commissioning NHS England Dental Conscious Sedation Services: A Framework Tool" was developed. This guidance proposes a common approach to the organisation of NHS dental conscious sedation services in England, advocating the provision of Tier 1 and Tier 2 services in all regions. Its ethos is a"hub and spoke" model of service delivery with patient assessment delivered by experienced and well trained dental sedationists at its core. In line with the recent Francis Report fundamental standards for all aspects of dental conscious sedation practice are outlined, supported by a robust and predictable quality assurance process. This work has been shared with key stakeholders in NHS England including the Chief Dental Officer and the Head of Primary Care Commissioning.

  7. Information-Seeking Behaviors of Dental Practitioners in Three Practice-Based Research Networks

    Science.gov (United States)

    Botello-Harbaum, Maria T.; Demko, Catherine A.; Curro, Frederick A.; Rindal, D. Brad; Collie, Damon; Gilbert, Gregg H.; Hilton, Thomas J.; Craig, Ronald G.; Wu, Juliann; Funkhouser, Ellen; Lehman, Maryann; McBride, Ruth; Thompson, Van; Lindblad, Anne

    2013-01-01

    Research on the information-seeking behaviors of dental practitioners is scarce. Knowledge of dentists’ information-seeking behaviors should advance the translational gap between clinical dental research and dental practice. A cross-sectional survey was conducted to examine the self-reported information-seeking behaviors of dentists in three dental practice-based research networks (PBRNs). A total of 950 dentists (65 percent response rate) completed the survey. Dental journals and continuing dental education (CDE) sources used and their influence on practice guidance were assessed. PBRN participation level and years since dental degree were measured. Full-participant dentists reported reading the Journal of the American Dental Association and General Dentistry more frequently than did their reference counterparts. Printed journals were preferred by most dentists. A lower proportion of full participants obtained their CDE credits at dental meetings compared to partial participants. Experienced dentists read other dental information sources more frequently than did less experienced dentists. Practitioners involved in a PBRN differed in their approaches to accessing information sources. Peer-reviewed sources were more frequently used by full participants and dentists with fifteen years of experience or more. Dental PBRNs potentially play a significant role in the dissemination of evidence-based information. This study found that specific educational sources might increase and disseminate knowledge among dentists. PMID:23382524

  8. Producing guidance for the management of patients with chronic periodontal disease in general dental practice.

    Science.gov (United States)

    Allen, G

    2015-04-24

    The vast majority of patients will experience gingival-related disease at some point in their life, and up to a quarter of those are susceptible to advanced periodontal disease. This makes its effective management an important part of general dental practice. This paper provides guidance on management which incorporates periodontal assessment, management and recall according to patient's oral hygiene and modifiable risk factors. This has been produced in flow diagram format to aid non-surgical management of chronic gingival and periodontal disease in general dental practice.

  9. Supervisory guidance and behavioral integrity: relationships with employee citizenship and deviant behavior.

    Science.gov (United States)

    Dineen, Brian R; Lewicki, Roy J; Tomlinson, Edward C

    2006-05-01

    The authors examined the effects of supervisory guidance (providing instruction to employees) and behavioral integrity (a pattern of word-deed alignment) on employee organizational citizenship behavior (OCB) and deviant behavior. Results revealed a pattern of Supervisory Guidance x Behavioral Integrity interaction effects, such that relationships between guidance and outcome variables were dependent on the level of behavioral integrity exhibited by supervisors. The interactions suggest a positive relationship between supervisory guidance and OCBs when behavioral integrity is high but also a positive relationship between guidance and deviant behavior when behavioral integrity is low. These results were consistent across 2 independent field samples: 1 assessing individual employee perceptions of supervisory behavior and the other assessing aggregate perceptions of supervisory behavior among employees in bank branches.

  10. Guidance Compliance Behavior on VMS Based on SOAR Cognitive Architecture

    Directory of Open Access Journals (Sweden)

    Shiquan Zhong

    2012-01-01

    Full Text Available SOAR is a cognitive architecture named from state, operator and result, which is adopted to portray the drivers' guidance compliance behavior on variable message sign (VMS in this paper. VMS represents traffic conditions to drivers by three colors: red, yellow, and green. Based on the multiagent platform, SOAR is introduced to design the agent with the detailed description of the working memory, long-term memory, decision cycle, and learning mechanism. With the fixed decision cycle, agent transforms state through four kinds of operators, including choosing route directly, changing the driving goal, changing the temper of driver, and changing the road condition of prediction. The agent learns from the process of state transformation by chunking and reinforcement learning. Finally, computerized simulation program is used to study the guidance compliance behavior. Experiments are simulated many times under given simulation network and conditions. The result, including the comparison between guidance and no guidance, the state transition times, and average chunking times are analyzed to further study the laws of guidance compliance and learning mechanism.

  11. Factors that Determine Child Behavior during Dental Treatment

    Directory of Open Access Journals (Sweden)

    Bajrić Elmedin

    2016-07-01

    Full Text Available In this review paper we wanted to summarize all the aspects which could affect the behavior of the child patients in the dental office. At the beginning, the factors that are related to the child patients are mentioned. Various segments of child psychological, cognitive, physiological and other kinds of development are discussed. Also, the reasons for dental fear and anxiety (DFA and dental behavior problems (DBP were analyzed, and how the child dental patients could cope with them. Finally, types of patients according to their behavior in the dental office were discussed. Furthermore, the influences of child patients’ parents were studied, including parenting styles, as well as factors related to dentist, dental team and the dental office. Finally, critical evaluation of administration of assets to measure the presence of DFA and DBP is provided. Every part of the text was corroborated by the results from our own and other authors’ recent bibliography data.

  12. Behavioral changes during dental appointments in children having tooth extractions

    Directory of Open Access Journals (Sweden)

    Mariana Gonzalez Cademartori

    2017-01-01

    Full Text Available Background: Tooth extractions are associated with anxiety-related situations that can cause behavioral problems in pediatric dental clinics. Aim: We aimed to describe the behavior of children during tooth extraction appointments, compare it to their behavior in preceding and subsequent dental appointments, and assess the behavioral differences according to gender, age, type of dentition, and reason for extraction. Settings and Design: This was a retrospective study based on information obtained from records of children between 6 and 13 years of age who were cared for at the Dentistry School in Pelotas, Brazil. Materials and Methods: Child behavior was assessed during the dental appointment that preceded the tooth extraction, during the tooth extraction appointment, and in the subsequent dental appointment using the Venham Behavior Rating Scale. Statistical Analysis: Results were analyzed using the Pearson Chi-square and McNemar tests. Results: Eighty-nine children were included. Cooperative behavior prevailed in all the dental appointments. The prevalence of “mild/intense protest” was higher in the tooth extraction appointments than in the previous or subsequent dental appointments (P < 0.001. No significant differences in behavior were detected between the type of dentition (primary or permanent teeth, reason for extraction or gender. Conclusion: In this sample of children treated at a dental school, the occurrence of uncooperative behavior was higher during the tooth extraction appointments than in the preceding and subsequent dental appointments.

  13. Community Dental Health Promotion for Children: Integrating Applied Behavior Analysis and Public Health.

    Science.gov (United States)

    Kramer, Kathryn D.; Geller, E. Scott

    1987-01-01

    The article examines community dental health promotion for children in terms of factors impacting children's dental health (water fluoridation, dental health education, behavior change strategies, use of dental services, and dental phobias). Proposed is a large scale behavior change approach to public dental health which integrates applied…

  14. GROUP GUIDANCE SERVICES MANAGEMENT OF BEHAVIORAL TECHNIC HOMEWORK MODEL

    Directory of Open Access Journals (Sweden)

    Juhri A M.

    2013-09-01

    Full Text Available Abstract: This simple paper describes the implementation of management guidance service groups using the model home visits behavioral techniques (behavior technic homework. The ideas outlined in this paper are intended to add insight for counselors in the management of the implementation of counseling services group that carried out effectively. This simple paper is expected to be used as reference studies in theoretical matters relating to the management guidance services group, for counselors to students both need guidance services and those who passively as they face various problems difficulties martial jar and obstacles in the achievement of learning , In general, this study aims to provide insight in particular in the development of social skills for students, especially the ability to communicate with the participants of the service (students more While specifically to encourage the development of feelings, thoughts, perceptions, insights and attitudes that support embodiments behavior Iebih creative and effective in improving communication skills both verbal and non-verbal for students. Keyword: counselor, counseling, group, student

  15. Parental Attitudes Toward Advanced Behavior Guidance Techniques Used in Pediatric Dentistry.

    Science.gov (United States)

    Patel, Monica; McTigue, Dennis J; Thikkurissy, Sarat; Fields, Henry W

    2016-01-01

    To re-examine parental attitudes toward advanced behavior management techniques in pediatric dentistry and determine whether cost, urgency, and amount of treatment influence parental preferences. Parents viewed previously validated videotaped clinical vignettes of four advanced behavior guidance techniques: (1) passive immobilization; (2) active immobilization; (3) general anesthesia; and (4) oral sedation. The study was conducted in a children's hospital dental clinic and a suburban private pediatric dentistry office. Parents rated overall acceptance of the techniques, and acceptance under specified conditions using an anchored visual analogue scale. One hundred five parents completed the survey; 55 from the children's hospital and 50 from private practice. Oral sedation was rated as the most acceptable technique, followed by general anesthesia, active immobilization, and passive immobilization. As urgency, convenience, and previous experience increased, parental acceptance of the technique increased. As cost of treatment increased, parental acceptance decreased. Ratings between the children's hospital group and private practice group differed, as did the demographic variables of insurance, income, and race. The hierarchy of parental acceptance of advanced behavior guidance techniques is changing with increasing approval of pharmacological management and decreasing approval of physical management. The health care delivery system, urgency, convenience, previous experience, and cost all influence parental acceptance.

  16. Effect of dental education on Peruvian dental students' oral health-related attitudes and behavior.

    Science.gov (United States)

    Sato, Manuel; Camino, Javier; Oyakawa, Harumi Rodriguez; Rodriguez, Lyly; Tong, Liyue; Ahn, Chul; Bird, William F; Komabayashi, Takashi

    2013-09-01

    This study evaluated the effect of dental education on oral health-related attitudes and behavior of students in a five-year dental program in Peru. A survey using the Hiroshima University-Dental Behavioral Inventory (HU-DBI), which consists of twenty dichotomous responses (agree-disagree) regarding oral health behavior and attitudes, was completed by Year 1 and Year 5 dental students at the Universidad Inca Garcilaso de la Vega in Lima, Peru. A total of 153 Year 1 students and 120 Year 5 students responded to the Spanish version of the HU-DBI questionnaire. The data were analyzed using chi-square tests and logistic regression analyses. Compared to the Year 1 students, the Year 5 dental students were more likely to agree with questions such as "I think I can clean my teeth well without using toothpaste" (OR=0.24, 95% CI: 0.10-0.58); "I have used a dye to see how clean my teeth are" (OR=0.19, 95% CI: 0.10-0.36); and "I have had my dentist tell me that I brush very well" (OR=0.34, 95% CI: 0.17-0.69). Overall, the data showed that the curriculum in this dental school in Peru resulted in more positive oral health-related attitudes and behavior among Year 5 dental students compared to those of Year 1 dental students.

  17. Ethnicity and maternal education as risk indicators for dental caries, and the role of dental behavior.

    NARCIS (Netherlands)

    Verrips, G.H.; Kalsbeek, H.; Eijkman, M.A.

    1993-01-01

    The aim of this study was to assess differences in dental health between socioeconomic and ethnic groups in a cohort of 5-yr-old children born in 1982 and in a cohort of 11-yr-old children born in 1976. A further aim was to evaluate the putative role of dental behaviors as intervening factors

  18. Dental health behavior in a migrant perspective: use of dental services of Pakistani immigrants in Norway.

    Science.gov (United States)

    Selikowitz, H S; Holst, D

    1986-12-01

    The purpose of the present study was to assess the utilization pattern of dental services in a group of Pakistani immigrants in Norway. Use was related to sociodemographic characteristics, level of urbanization in Pakistan, knowledge and belief about dental diseases and evaluated and perceived dental health. A total of 160 immigrants were clinically examined and interviewed by a structured questionnaire. The effect change analysis was performed, and separate analyses were performed for men and women. Altogether 60% had visited the dentist during the last 3 yr. While 69% coming from the cities had been to the dentist in Norway, this was the case for only 38% of those from the villages of Pakistan. Pain was given as the main reason for dental visits, and the data indicated insufficient ability to perform self-assessment of own dental health. The independent variables could explain more of the variance in use of dental services among the Pakistani men (R2 = 40%) than among the women (R2 = 21%). While number of decayed teeth and level of urbanization were among the strongest predictors among the men, dental behavior in Pakistan and number of years in Norway were of importance among the women. The latter variable indicated that the women in terms of dental behavior had a higher degree of acculturation than the men, leading to a change in traditional health behavior.

  19. Impact of pharmacists' directive guidance behaviors on patient satisfaction.

    Science.gov (United States)

    Singhal, Puneet K; Gupchup, Gireesh V; Raisch, Dennis W; Schommer, Jon C; Holdsworth, Mark T

    2002-01-01

    To determine the impact of directive guidance (DG) behaviors by pharmacists on patient satisfaction with pharmaceutical care services. DG behaviors are social support behaviors and include such activities as supplying information about medications and providing encouragement and feedback regarding drug therapy. Cross-sectional observational study using a self-administered survey. Two university-affiliated ambulatory care clinics, two chain pharmacies, and one independent pharmacy. One hundred sixty patients with a chronic disease (e.g., asthma, hypertension, diabetes). Patient satisfaction with pharmaceutical care services. A total of 160 completed questionnaires were collected from patients at 5 sites. Overall, patients patronizing ambulatory care clinics perceived higher rates of DG behaviors and were more satisfied with pharmaceutical care services, compared with patients in community pharmacies (P < .05). The hierarchical regression model was significant (F(13,112) = 4.9091, P < .001). DG behaviors explained 32.4% (P < .001) of the variance in patient satisfaction with pharmaceutical care services. Higher rates of DG behaviors by pharmacists are associated with greater patient satisfaction with pharmaceutical care services.

  20. Prerequisites in behavioral science and business: opportunities for dental education.

    Science.gov (United States)

    Dunning, David G; Lange, Brian M; Madden, Robert D; Tacha, Koko K

    2011-01-01

    There is increasing pressure on recent dental school graduates to understand and successfully utilize patient management and business management strategies to run a productive dental office. Dental schools are faced with the dilemma to either add more credit hours in their already crowded curriculum or adjust predental school requirements. All fifty-nine U.S. dental schools were assessed online to determine admission requirements in the areas of behavioral science and business education. Results show that only 11.9 percent of the schools require prerequisite course work in behavioral science and no school requires prerequisite course work in business. However, 64.4 percent and 30.5 percent of schools encouraged or recommended prerequisite course work in behavioral science and business, respectively. We suggest that the dental education community involve key stakeholders to discuss the incorporation of prerequisite course work in behavioral science and business. Additional courses in these disciplines would provide dental students better backgrounds from which the dental curriculum could build a more advanced and applied perspective to better prepare students for practice.

  1. Family composition and children's dental health behavior: evidence from Germany.

    Science.gov (United States)

    Listl, Stefan

    2011-01-01

    To assess whether children's dental health behavior differs between family compositions of either natural parents or birth mothers together with stepfathers. We use data from the German Health Interview and Examination Survey Children and Adolescents (KiGGS) public use file. This is the first nationally r ep resentative sample on child health in Germany and particularly contains variables for dental attendance, tooth care, and eating behavior of 13,904 children below 14 years of age. A series of zero-inflated Poisson, ordinary least squares, binary, and ordered logistic regression models was set up in order to identify whether family composition is a significant explanatory variable for children's dental health behavior. Family composition turned out as a significant parameter for some aspects of children's dental health behavior. Specifically, children who grow up in families with a birth mother and a stepfather have only half the probability to access dental services but, once seeking treatment, the number of visits is significantly higher in comparison with children raised by their natural parents. Moreover, children growing up in such a patchwork family setting consume a higher amount of sugary foods and drinks. This appears mainly attributable to differential consumption habits for juices, cookies, and chocolate. Children who grow up in settings other than the nuclear family may develop different dental health behaviors than children who grow up with both natural parents, albeit more research is needed to identify the extent to which such behavioral changes lead to variations in caries occurrence.

  2. Child dental fear and behavior: The role of environmental factors in a hospital cohort

    OpenAIRE

    B S Suprabha; Arathi Rao; Shwetha Choudhary; Ramya Shenoy

    2011-01-01

    Introduction: Information on the origin of dental fear and uncooperative behavior in a child patient is important for behavior management strategy. The effects of environmental factors have been comparatively less studied, especially in an Indian scenario. Objectives: To find the association of (1) age, gender, family characteristics, previous medical, and dental experiences with dental fear and behavior (2) dental fear with dental behavior. Materials and Methods: A cross-sectional questionna...

  3. Child dental fear and behavior: The role of environmental factors in a hospital cohort

    Directory of Open Access Journals (Sweden)

    B S Suprabha

    2011-01-01

    Full Text Available Introduction: Information on the origin of dental fear and uncooperative behavior in a child patient is important for behavior management strategy. The effects of environmental factors have been comparatively less studied, especially in an Indian scenario. Objectives: To find the association of (1 age, gender, family characteristics, previous medical, and dental experiences with dental fear and behavior (2 dental fear with dental behavior. Materials and Methods: A cross-sectional questionnaire study involving 125 children aged between 7 and 14 years undergoing dental treatment under local anesthesia. The parent completed a questionnaire on family situation, medical history, and past dental experiences of the child. Child′s dental fear was recorded using Children′s Fear Survey Schedule-Dental Subscale and behavior was rated using Frankl Behaviour Rating Scale. Statistical Analysis: Data were analyzed using chi square test and binary logistic regression analysis. Results: Unpleasant experience in dental clinic and age of the child significantly influenced dental behavior. Visited pediatrician in the past one year, prior history of hospital admission, previous visit to dentist, experience at the first dental visit, and age of the child were contributing factors for dental fear. There was also significant association between dental fear levels and behavior. Conclusions: In 7 to 14 year olds, dental fear influences dental behavior, but the factors affecting them are not the same. Although dental fear decreases and dental behavior improves with age, experiences at the previous dental visits seem to influence both dental fear and behavior. Past medical experiences are likely to influence dental fear but not dental behavior.

  4. Information-Seeking Behaviors of Dental Practitioners in Three Practice-Based Research Networks

    OpenAIRE

    Botello-Harbaum, Maria T; Demko, Catherine A.; Curro, Frederick A.; Rindal, D Brad; Collie, Damon; Gilbert, Gregg H.; Hilton, Thomas J.; Craig, Ronald G.; Wu, Juliann; Funkhouser, Ellen; Lehman, Maryann; McBride, Ruth; Thompson; Lindblad, Anne

    2013-01-01

    Research on the information-seeking behaviors of dental practitioners is scarce. Knowledge of dentists’ information-seeking behaviors should advance the translational gap between clinical dental research and dental practice. A cross-sectional survey was conducted to examine the self-reported information-seeking behaviors of dentists in three dental practice-based research networks (PBRNs). A total of 950 dentists (65 percent response rate) completed the survey. Dental journals and continuing ...

  5. 77 FR 48989 - Draft Guidance for Industry on Suicidal Ideation and Behavior: Prospective Assessment of...

    Science.gov (United States)

    2012-08-15

    ... HUMAN SERVICES Food and Drug Administration Draft Guidance for Industry on Suicidal Ideation and... availability of a draft guidance for industry entitled ``Suicidal Ideation and Behavior: Prospective Assessment... prospectively assessing the occurrence of treatment-emergent suicidal ideation and behavior in clinical...

  6. Pediatric behavior guidance in the 21st century workshop C report - advocacy and policy.

    Science.gov (United States)

    Quinonez, Rocio B; Nelson, Travis

    2014-01-01

    This report outlines a series of recommendations derived from an advocacy and policy workshop at the 2013 American Academy of Pediatric Dentistry (AAPD) Behavior Guidance Symposium. The committee charge was to address two questions: (1) what should be done to change public and media perception of behavior guidance, if anything, and: (2) what should be done to insure that needed behavior guidance techniques will be available for practicing pediatric dentists in the future. Members of the workshop voiced a wide variety of opinions and impressions of how public perception and media promotion of behavior guidance affect the practice of pediatric dentistry. A diverse assortment of strategies to promote the availability of these techniques in the future was suggested. This report will serve to inform policy and advocacy efforts by AAPD to improve children's oral health and promote excellence in patient care.

  7. Children′s behavior pattern and behavior management techniques used in a structured postgraduate dental program

    Directory of Open Access Journals (Sweden)

    Sharath A

    2009-03-01

    Full Text Available Background : Anxiety and fear remain the primary emotion of a child entering a dental office. Successful pediatric dentistry depends not only on the dentist′s technical skills, but also on his ability to acquire and maintain a child′s cooperation. Methods: A retrospective study was done using the case records of 247 children, to evaluate their behavior patterns, based on the Wright′s modification of Frankl′s behavior rating scale. Various behavior management techniques like the tell-show-do, reinforcements, voice control, and hand over mouth exercise used in the postgraduate section of the Department of Pediatric Dentistry, Meenakshi Ammal Dental College, Chennai, India, were also evaluated in this study. Results: Behavior of the children improved on the subsequent visits. Tell-show-do was the most common behavior management technique used and more aversive management techniques were rarely used in managing children in the dental office. Conclusion: Proper assessment of children′s behavior helps the dentist to plan appointments and render effective and efficient dental treatment. Appropriate use of management techniques can improve the child′s behavior in subsequent dental visits.

  8. Shear stress relaxation of dental ceramics determined from creep behavior.

    Science.gov (United States)

    DeHoff, Paul H; Anusavice, Kenneth J

    2004-10-01

    To test the hypothesis that shear stress relaxation functions of dental ceramics can be determined from creep functions measured in a beam-bending viscometer. Stress relaxation behavior was determined from creep data for the following materials: (1) a veneering ceramic-IPS Empress2 body ceramic (E2V); (2) an experimental veneering ceramic (EXV); (3) a low expansion body porcelain-Vita VMK 68 feldspathic body porcelain (VB); (4) a high expansion body porcelain-Will Ceram feldspathic body porcelain (WCB); (5) a medium expansion opaque porcelain-Vita feldspathic opaque porcelain (VO); and (6) a high expansion opaque porcelain-Will Ceram feldspathic opaque porcelain (WCO). Laplace transform techniques were used to relate shear stress relaxation functions to creep functions for an eight-parameter, discrete viscoelastic model. Nonlinear regression analysis was performed to fit a four-term exponential relaxation function for each material at each temperature. The relaxation functions were utilized in the ANSYS finite element program to simulate creep behavior in three-point bending for each material at each temperature. Shear stress relaxation times at 575 degrees C ranged from 0.03 s for EXV to 195 s for WCO. Knowledge of the shear relaxation functions for dental ceramics at high temperatures is required input for the viscoelastic element in the ANSYS finite element program, which can used to determine transient and residual stresses in dental prostheses during fabrication.

  9. Remote guidance of untrained turtles by controlling voluntary instinct behavior.

    Directory of Open Access Journals (Sweden)

    Serin Lee

    Full Text Available Recently, several studies have been carried out on the direct control of behavior in insects and other lower animals in order to apply these behaviors to the performance of specialized tasks in an attempt to find more efficient means of carrying out these tasks than artificial intelligence agents. While most of the current methods cause involuntary behavior in animals by electronically stimulating the corresponding brain area or muscle, we show that, in turtles, it is also possible to control certain types of behavior, such as movement trajectory, by evoking an appropriate voluntary instinctive behavior. We have found that causing a particular behavior, such as obstacle avoidance, by providing a specific visual stimulus results in effective control of the turtle's movement. We propose that this principle may be adapted and expanded into a general framework to control any animal behavior as an alternative to robotic probes.

  10. Stress relaxation behavior of dental porcelains at high temperatures.

    Science.gov (United States)

    DeHoff, P H; Vontivillu, S B; Wang, Z; Anusavice, K J

    1994-05-01

    The purpose of this study was to measure the stress relaxation behavior at elevated temperatures of three experimental opaque porcelains and three experimental body porcelains. Feldspathic porcelain formulations covering a range of thermal contraction coefficients were supplied by a dental ceramics manufacturer. Six specimens, 11 mm in diameter by 22 mm long, were fabricated for each porcelain. The specimens were tested in compression at five temperatures controlled to +/- 1 degree C in a hot stage furnace attached to a screw-type uni-axial testing machine. Mean values of relaxation time, tau u, and the b function were determined by a regression fit to the relation: psi (t) = exp [-(t/tau u)b]. Values of b ranged from 0.23 to 0.53 for opaque porcelain and 0.47 to 0.64 for body porcelain. Relaxation times ranged from 2.6 s to 4 x 10(4) s for the opaque porcelains and 1.5 s to 5.5 x 10(2) s for the body porcelains. A statistically significant variation of b with temperature for three of the experimental porcelains is an indication that these porcelains do not satisfy the theoretical requirements for the porcelains to be classified as thermorheologically simple. A knowledge of the relaxation behavior of dental porcelains is necessary so that dental researchers can identify metal/porcelain combinations that will result in low stress values and, therefore, reduce the potential for failure from thermally induced stresses. These properties can be used in the optimization of prosthesis design to reduce the destruction of healthy tissue to accommodate the placement of the dental prosthesis.

  11. The Impact of Long-Term Dental Health Education on Oral Hygiene Behavior.

    Science.gov (United States)

    Houle, Bonnie A.

    1982-01-01

    A study evaluated the impact of five years' exposure to a dental health curriculum on the oral hygiene of fifth-grade students. Findings of the study indicate that a well-designed dental health curriculum based on cognitive and behavioral objectives can result in a greater accumulation of dental health knowledge. (JN)

  12. On the Friction and Wear Behaviors of Dental Machinable Porcelain

    Institute of Scientific and Technical Information of China (English)

    YU Hai-yang; ZHOU Zhong-rong; CAI Zhen-Bing

    2004-01-01

    In order to well design tribosystems of dental CAD-CAM restorations, an understanding of the tribological mechanisms of dental machinable porcelain are essential. The friction and wear behavior of new generation industrially prefabricated Cerec Vitablocs Mark Ⅱ against uniform Si3N4 ball has been performed using a small amplitude reciprocating apparatus under simulating oral conditions. The loads of 10-40 N, reciprocating amplitudes of 100-500 μm, frequencies of 1-4 Hz and two lubrications (no / artificial saliva lubrication) were selected. Tests lasting up to 10 000 cycles were conducted. The results show that Cerec Vitablocs Mark Ⅱ record a friction coefficient of 0.55-0.84. Artificial saliva plays a lubricant effect during wear process. Among three parameters of the test on friction coefficient and wear depth of dental machinable porcelains, the load effect is prominent. Abrasive wear is the main wear mechanism, but brittle cracks and delamination are more popular especially under unlubricated friction.

  13. On the Friction and Wear Behaviors of Dental Machinable Porcelain

    Institute of Scientific and Technical Information of China (English)

    YUHai-yang; ZHOUZhong-rong; CAIZhen-Bing

    2004-01-01

    In order to well design tribosystems of dental CAD-CAM restorations, an understanding of the tribological mechanisms of dental machinable porcelain are essential. The friction and wear behavior of new generation industrially prefabricated Cerec Vitablocs Mark II against uniform Si3N4ball has been performed using a small amplitude reciprocating apparatus under simulating oral conditions. The loads of 10-40N, reciprocating amplitudes of 100-500μm, frequencies of 1-4Hz and two lubrications (no / artificial saliva lubrication) were selected. Tests lasting up to 10 000 cycles were conducted. The results show that Cerec Vitablocs Mark Ⅱ record a friction coefficient of 0.55-0.84. Artificial saliva plays a lubricant effect during wear process. Among three parameters of the test on friction coefficient and wear depth of dental machinable porcelains, the load effect is prominent. Abrasive wear is the main wear mechanism, but brittle cracks and delamination are more popular especially under unlubricated friction.

  14. Behavior guidance techniques in Pediatric Dentistry: attitudes of parents of children with disabilities and without disabilities.

    Science.gov (United States)

    de Castro, Alessandra Maia; de Oliveira, Fabiana Sodré; de Paiva Novaes, Myrian Stella; Araújo Ferreira, Danielly Cunha

    2013-01-01

    This study compared the parental acceptance of pediatric behavior guidance techniques (BGT). Forty parents of children without disabilities (Group A) and another 40 parents of children with disabilities (Group B) were selected. Each BGT was explained by a single examiner and it was presented together with a photograph album. After that parents evaluated the acceptance in: totally unacceptable, somewhat acceptable, acceptable, and totally acceptable. Results indicated that in Group A, the BGT based on communicative guidance was accepted by most participants. In Group B, just one mother considered totally unacceptable the voice control method and other two, tell-show-do. For both groups, the general anesthesia was the less accepted BGT. There was statistically significant difference in acceptance for protective stabilization with a restrictive device in Group B. Children's parents with and without disabilities accepted behavioral guidance techniques, but basic techniques showed higher rates of acceptance than advanced techniques.

  15. MOTHERS' DENTAL HEAL TH BEHAVIORS AND MOTHER-CHILD'S DENTAL CARIES EXPERIENCES: STUDY OF A SUBURB AREA IN INDONESIA

    Directory of Open Access Journals (Sweden)

    Diah Ayu Maharani

    2012-12-01

    Full Text Available Despite the importance of conducting regular epidemiological surveys to monitor dental health in lower socio-economic citizens especially of preschool children, only few papers were published respectively. The aims of this study were to describe preschool children's and their mother's dental caries experiences and to describe mothers' knowledge and behaviors' towards dental health in a suburb area near the capital city of Indonesia. The samples were 152 mother-childpairs with children age less than 5 years old. Intra oral examination by decay-missing-filling-teeth index was performed. Moreover, interviews were conducted to gain information regarding mothers’ oral health behavior and knowledge. 70% children had caries with mean dmf-t= 3.7, consisting 100% of component decay. 90% mothers had caries with DMF-T=7.8, consisting 99% of component decay. More than 50% of mothers had low knowledge and behaviors towards dental health, which comprises of: (1 never checked their children’s dental health, (2 starting to clean their child's teeth after child's age is more than 1 years old, (3 don’t know that caries is an infectious disease, (4 frequently using same feeding and drinking equipments together with their children, (5 considering deciduous teeth are not importantbecause it will be replaced with permanent teeth anyway. It could beconcluded that the prevalence of dental caries in studied sample were high, these were relevant to the findings that the mother's knowledge and behaviors' towards dental health were low. The results of this study demonstrated that mothers might have a high contribution in their child’s caries risk. Prevention should be undertaken at an early age and actively including caregivers is essential in planningand conducting any dental health interventions.

  16. Assessing School Effects on Dental Hygiene and Nutrition Behaviors of Canadian Adolescents

    Science.gov (United States)

    Ma, Xin

    2007-01-01

    This study examines what school experiences influence dental hygiene and nutrition behaviors of Canadian adolescents from the 1998 Cross-national Survey on Health Behaviors in School-aged Children (HBSC). Multilevel analyses highlight the rare use of dental floss among adolescents. Females are more likely to brush and floss teeth than males.…

  17. Assessment of relationship between oral health behavior, oral hygiene and gingival status of dental students

    Directory of Open Access Journals (Sweden)

    Afsheen Lalani

    2015-01-01

    Conclusion: Thus, it is concluded that there is a significant relationship between the oral health behavior, oral hygiene, and gingival status of dental students. Dental students with better self-reported oral health behavior had lower plaque and gingival scores indicating a better attitude toward oral health.

  18. Dental Hygiene, Dental, and Medical Students' OMFS/Hospital Dentistry-Related Knowledge/Skills, Attitudes, and Behavior: An Exploration.

    Science.gov (United States)

    Munz, Stephanie M; Kim, Roderick Y; Holley, Tyler J; Donkersloot, John N; Inglehart, Marita R

    2017-02-01

    Engaging other health care providers in oral health-related activities and interprofessional care (IPC) could increase access to oral health care for underserved populations in the U.S. The aims of this study were to assess dental hygiene, dental, and medical students' intra- and interprofessional and oral and maxillofacial surgery (OMFS)/hospital dentistry-related knowledge/skills, attitudes, and behavior; determine whether first and second year vs. third and fourth year cohorts' responses differed; and explore how intra- and interprofessional knowledge was related to interprofessional education (IPE) and interprofessional attitudes and behavior. Data were collected between April 2014 and May 2015 from 69 dental hygiene, 316 dental, and 187 medical students. Response rates across classes for the dental hygiene students ranged from 85% to 100%; 24% to 100% for the dental students; and 13% to 35% for the medical students. The results showed that the medical students had lower oral health-related and interprofessional knowledge and less positive attitudes about oral health-related behavior, IPE, and interprofessional teamwork than the dental hygiene and dental students. While third- and fourth-year medical students' interprofessional knowledge/skills and behavior were higher than those of first- and second-year students, the two groups' IPE-related and interprofessional attitudes did not differ. The students' knowledge correlated with their IPE and interprofessional communication-related skills and behavior, but not with their interprofessional attitudes. These dental hygiene, dental, and medical students' OMFS/hospital dentistry-related knowledge/skills and behavior increased over the course of their academic programs, while their IPE-related and intra- and interprofessional attitudes, especially for medical students, did not improve over time. OMFS and hospital dentistry units in medical centers offer distinctive opportunities for IPE and IPC. Utilizing these units

  19. Self-assessed dental health, oral health practices, and general health behaviors in Chinese urban adolescents

    DEFF Research Database (Denmark)

    Jiang, Han; Petersen, Poul Erik; Peng, Bin

    2005-01-01

    effect of socio-behavioral risk factors on perceived dental health, perceived need for dental care, and experience of dental symptoms. A cross-sectional survey of 2662 adolescents was conducted in eight capital cities in China; the response rate was 92%. The study population was chosen by multistage......The objectives of this study were: to describe perceived dental health status and oral health-related knowledge, attitudes, and behavior in Chinese urban adolescents; to assess the associations of oral health variables with socio-economic status and school performance; and to analyse the relative...

  20. A comparative study of oral health attitudes and behavior using the Hiroshima University-Dental Behavioral Inventory (HU-DBI) between dental and civil engineering students in Colombia.

    Science.gov (United States)

    Jaramillo, Jorge A; Jaramillo, Fredy; Kador, Itzjak; Masuoka, David; Tong, Liyue; Ahn, Chul; Komabayashi, Takashi

    2013-03-01

    The aim of this study was to use the Hiroshima University - Dental Behavioral Inventory (HU-DBI) to compare oral health attitudes and behavior of dental and civil engineering students in Colombia. The HU-DBI's survey consisting of twenty dichotomous responses (agree-disagree) regarding tooth brushing, was completed at University Antonio Narino for the dental students and the University of Cauca for the civil engineering students. The Spanish version of the HU-DBI questionnaire was taken by 182 of 247 dental students and 411 of 762 engineering students. The data was-statistically analyzed by the chi-square test and backward logistic regression. Compared to the engineering students, the dental students were more likely to agree with questions such as "I am bothered by the color of my gums"(OR = 2.2, 95% CI: 1.3-3.7),"I think I can clean my teeth well without using toothpaste" (OR = 3.0, 95% CI: 1.5-5.9), "I have used a dye to see how clean my teeth are" (OR = 2.9, 95% CI: 1.9-4.3), and "I have had my dentist tell me that I brush very well" (OR = 2.0, 95% CI: 1.3-3.1). The dental education curriculum in a dental school compared to a civil engineering school in Colombia indicated that a three-phase curriculum in didactics and clinics increased oral health attitudes and behavior from entry to graduation.

  1. Evaluation of physiological and behavioral measures in relation to dental anxiety during sequential dental visits in children

    Directory of Open Access Journals (Sweden)

    Rayen R

    2006-01-01

    Full Text Available Anxiety is a special variety of fear, experienced in anticipation of threatening stimuli. While some research workers have said that the response of a child improves with the number of visits, many have felt otherwise. The present study is yet another effort to find the patterns of anxiety in children during sequential dental visits. The main aim was to determine the physiological and behavioral variations during sequential dental visits and its impact on age and sex. The study was conducted at the outpatient Department of Pedodontics and preventive dentistry, Meenakshi Ammal Dental College and Hospital, Chennai to evaluate the physiological and behavioural measures of stress and anxiety in children. One hundred and fifteen children, between four and eleven years of age who reported for dental treatment were selected for the study.

  2. Electrochemical behavior of dental implant system before andafter clinical use

    Institute of Scientific and Technical Information of China (English)

    Chae-Heon CHUNG; Hee-Jung KIM; Yong-Tae JEONG; Mee-Kyoung SON; Yong-Hoon JEONG; Han-Cheol CHOE

    2009-01-01

    Electrochemical behavior of dental implant system before and after clinical use (in vivo and in vitro) was researched by using abutment and titanium fixture. To simulate an oral environment, the samples of clinically used and non-used implant systems as a working electrode were exposed to artificial saliva at (36.5±1) ℃. Electrochemical tests were carried out using a potentiostat. After electrochemical test, the corrosion morphology of each sample was investigated by FE-SEM and EDS. The corrosion potential and pitting potential of clinically used implant system are lower than those of non-used implant system, and clinically used implant system exhibits a lower range of passivation, indicating a less degree of inherent resistance against chloride ion. The polarization resistance decreases in the case of clinically used implant system, whereas, Rp for clinically non-used implant system increases compared with clinically used implant system.

  3. Accuracy of a newly developed cone-beam computerized tomography-aided surgical guidance system for dental implant placement: an ex vivo study.

    Science.gov (United States)

    Murat, Sema; Kamburoğlu, Kivanç; Özen, Tuncer

    2012-12-01

    The aim of the present study was to measure the accuracy of the cone-beam computerized tomography (CBCT)- aided StentCad Beyond surgical guidance system and to compare bone-supported and tooth/bone-supported guidance by using this system in dental implant placement ex vivo. Five cadaver mandibles were scanned using an Iluma CBCT scanner. After scanning, DICOM slices were transferred to the StentCad Beyond implant simulation software, which was used for preoperative implant planning. Using the StentCad Beyond guidance system, 9 implant drills were inserted using a bone-supported guidance system and 11 using a tooth/bone-supported guidance system. Mandibles were scanned again and these data were transferred to the StentCad Beyond software. Pre- and postoperative information was superimposed using the Rhinoceros version 4 software program, and deviations between planned and actual drill positions were calculated for each implant. In addition, differences between bone-supported and tooth/bone-supported guidance systems were analyzed by t-test, with a significance level of P .05); however, statistically significant differences between groups were found in mean horizontal coronal deviation (P = .016) and mean horizontal apical deviation (P = .047). The StentCad Beyond system was found to be a reliable guide for placing implants ex vivo.

  4. Effect of Educational Booklet and Lecture on Nutritional Knowledge, Attitude and Behavior of Third-Grade Male Guidance School Students

    National Research Council Canada - National Science Library

    Mostafa Vahedian; Roya Sadeghi; Rohollah Farhadlu; Azamossadat Nazeri; Azizallah Dehghan; Mohammad Hassan Barati

    2014-01-01

    .... Materials and Methods: In this semi experimental study the effect of various educational methods on nutritional knowledge, attitude and behaviors of guidance school students in Qom city in the years 2011-12 was evaluated...

  5. Self-reported oral health behavior and attitudes of dental and technology students in Lithuania.

    Science.gov (United States)

    Pacauskiene, Ingrida M; Smailiene, Dalia; Siudikienė, Jolanta; Savanevskyte, Julija; Nedzelskiene, Irena

    2014-01-01

    The aim of the present study was to assess self-reported oral health habits, attitudes, lifestyle between the sample groups of preclinical and clinical dental and technology students in Lithuania using the Hiroshima University Dental Behavioral Inventory (HU-DBI), and to evaluate the impact of education on their behavior and self-reported oral health. A sample of 183 dental and 75 technology students at the Lithuanian University of Health Sciences, Medical Academy, Faculty of Odontology, and Kaunas University of Technology completed the Lithuanian version the HU-DBI questionnaire with 11 additional items. The data were analyzed using the "SPSS 19.0 for Windows" software package. The mean HU-DBI score of clinical final-year dentistry students was significantly higher (p=0.001) than the score of the preclinical group (6.81 (1.2) and 5.96 (1.5), respectively). The mean scores of both groups of dental students were significantly (p<0.05) higher than that of the technology group (5.37 (1.8)). Oral health behaviors and knowledge were superior in dental students. Dental education had a significant positive impact on the oral health and behavior improvement. The attitudes of the Lithuanian dental students should be further improved by initiating a comprehensive program that would emphasize the importance of oral hygiene before the clinical program starts.

  6. Patients with special needs: dental students' educational experiences, attitudes, and behavior.

    Science.gov (United States)

    Vainio, Lauren; Krause, Meggan; Inglehart, Marita R

    2011-01-01

    Accreditation standards require U.S. dental schools to prepare their graduates for the diagnosis of treatment needs of patients with special health care needs (SHCN). The objective of this study was to explore dental students' perceptions of their education about these issues, their satisfaction with this education, and their professional attitudes and behavioral intentions concerning treating patients with SHCN in the future. Web-based survey data were collected from forty-nine dental student leaders in thirteen U.S. dental schools and paper-and-pencil survey data from 397 dental students at a Midwestern dental school. Most respondents agreed that it is important to be educated about providing care for patients with SHCN and that they will provide care for these patients in the future. However, their satisfaction with their education was not equally positive. Their perceived quality of their dental education was correlated with their confidence concerning treating SHCN patients; their confidence was in turn correlated with their intentions to include these patients in their patient families in their future professional lives. In conclusion, dental students are strongly motivated to learn about providing care for patients with SHCN. The better their dental education prepares them for this task, the more confident they will be when treating these patients and the more likely they will be to provide care for these patients.

  7. Longitudinal behavioral analysis during dental care of children aged 0 to 3 years

    Directory of Open Access Journals (Sweden)

    Robson Frederico Cunha

    2009-09-01

    Full Text Available "When" and "how" the dentist intervenes have repercussions on children's physical and emotional patterns. The objective of the present study was to conduct a longitudinal behavioral analysis during dental care of babies aged 0 to 3 years. A total of 216 patients seen at the Baby Clinic of the School of Dentistry at Araçatuba, São Paulo State University (UNESP, were selected. The selection criterion was attendance at ten dental care sessions at bimonthly intervals for routine procedures such as clinical examination and oral hygiene. There was a predominance of cooperative behavior compared to uncooperative behavior when each visit was analyzed separately. The behavior of the patients must have been directly influenced by their psychomotor development. Constant attendance and exposure of the baby to non-stressful dental stimuli are factors that favor a cooperative behavior.

  8. Volunteerism among Dental Hygienists: The Relationship between a Practice Act Incentive, Behaviors, Perceptions and Motivational Orientations.

    Science.gov (United States)

    Wilkie, Sandra D; Gurenlian, JoAnn R; Freudenthal, Jacqueline J

    2015-10-01

    Thirteen states in the nation authorize dental hygienists to satisfy re-licensure requirements in part, by performing pro bono oral health services in lieu of participating in continuing education courses This study compared registered dental hygienists' donations of time and professional expertise, perceptions of volunteerism and motivational orientations as they practice in both the presence and absence of a practice act statute intended to incentivize volunteerism. Volunteer behaviors, perceptions and motivational orientations of a non probability sample of 316 dental hygienists actively licensed by the states of Idaho or Utah, were assessed using an online survey which included the Self Determination Theory General Causality Orientations Scale (GCOS). Survey Monkey results were analyzed using Mann Whitney U tests, Chi-Square analysis and an Independent Samples t-test at the 0.05 level of significance. No statistically significant differences were found between dental hygienists' volunteer behaviors, perceptions of volunteerism or scores on the GCOS Autonomy and Impersonal subscales in the 2 states studied. Statistical analysis of dental hygienists' mean scores on the GCOS measure of Controlled motivational orientation yielded a significant difference (p=0.001) among Utah and Idaho dental hygienists. Dental hygienists require evidence based practice statutes and regulations that keep pace with the need to provide universal access to comprehensive oral care. Additional research is required to determine the effectiveness of legislation intended to encourage registered dental hygienists' altruistic expressions. Dental hygienists are frequently unaware of opportunities to volunteer their services and how state practice act regulations impact those opportunities. Copyright © 2015 The American Dental Hygienists’ Association.

  9. The Oral Health Self-Care Behavior and Dental Attitudes among Nursing Home Personnel.

    Science.gov (United States)

    Wiener, R Constance; Meckstroth, Richard

    2014-03-01

    The need for nursing home care will increase for the next several decades. Rural areas will be impacted in particular, as many older adults live in rural areas. Daily oral infection control changes when a person moves from independent living to institutional living. Oral care to dependent individuals is influenced by many factors. The purpose of this study is to determine the association of oral health self-care behavior with dental attitudes in nursing home personnel in a rural state. A survey was provided to attendees at an oral health conference. Questions were asked to determine dental knowledge, oral health self-care behavior, and dental care attitudes. Of 128 long term care health care facilities' personnel invited, there were 31 attendees, and 21 of the attendees participated (67.7%). Nursing home personnel had a high level of dental knowledge. Oral health self-care behavior was independently influenced by dental knowledge (β=0.17; p=0.0444) and dental attitudes (β=0.55; p=.0081). Further investigation is needed to determine if oral health self-care attitudes and oral self-care behavior of nursing home personnel are factors in the provision of quality daily oral infection control for dependent nursing home residents living in rural areas.

  10. Friendship Network and Dental Brushing Behavior among Middle School Students: An Agent Based Modeling Approach.

    Science.gov (United States)

    Sadeghipour, Maryam; Khoshnevisan, Mohammad Hossein; Jafari, Afshin; Shariatpanahi, Seyed Peyman

    2017-01-01

    By using a standard questionnaire, the level of dental brushing frequency was assessed among 201 adolescent female middle school students in Tehran. The initial assessment was repeated after 5 months, in order to observe the dynamics in dental health behavior level. Logistic Regression model was used to evaluate the correlation among individuals' dental health behavior in their social network. A significant correlation on dental brushing habits was detected among groups of friends. This correlation was further spread over the network within the 5 months period. Moreover, it was identified that the average brushing level was improved within the 5 months period. Given that there was a significant correlation between social network's nodes' in-degree value, and brushing level, it was suggested that the observed improvement was partially due to more popularity of individuals with better tooth brushing habit. Agent Based Modeling (ABM) was used to demonstrate the dynamics of dental brushing frequency within a sample of friendship network. Two models with static and dynamic assumptions for the network structure were proposed. The model with dynamic network structure successfully described the dynamics of dental health behavior. Based on this model, on average, every 43 weeks a student changes her brushing habit due to learning from her friends. Finally, three training scenarios were tested by these models in order to evaluate their effectiveness. When training more popular students, considerable improvement in total students' brushing frequency was demonstrated by simulation results.

  11. Development and Testing of a Cognitive Behavioral Therapy Resource for Children's Dental Anxiety.

    Science.gov (United States)

    Porritt, J; Rodd, H; Morgan, A; Williams, C; Gupta, E; Kirby, J; Creswell, C; Newton, T; Stevens, K; Baker, S; Prasad, S; Marshman, Z

    2017-01-01

    Cognitive Behavioral Therapy (CBT) is an evidence-based treatment for dental anxiety; however, access to therapy is limited. The current study aimed to develop a self-help CBT resource for reducing dental anxiety in children, and to assess the feasibility of conducting a trial to evaluate the treatment efficacy and cost-effectiveness of such an intervention. A mixed methods design was employed. Within phase 1, a qualitative "person-based" approach informed the development of the self-help CBT resource. This also employed guidelines for the development and evaluation of complex interventions. Within phase 2, children, aged between 9 and 16 y, who had elevated self-reported dental anxiety and were attending a community dental service or dental hospital, were invited to use the CBT resource. Children completed questionnaires, which assessed their dental anxiety and health-related quality of life (HRQoL) prior to and following their use of the resource. Recruitment and completion rates were recorded. Acceptability of the CBT resource was explored using interviews and focus groups with children, parents/carers and dental professionals. For this analysis, the authors adhered to the Mixed Methods Appraisal Tool criteria. There were 24 families and 25 dental professionals participating in the development and qualitative evaluation of the CBT resource for children with dental anxiety. A total of 56 children agreed to trial the CBT resource (66% response rate) and 48 of these children completed the study (86% completion rate). There was a significant reduction in dental anxiety (mean score difference = 7.7, t = 7.9, df = 45, P < 0.001, Cohen's d ES = 1.2) and an increase in HRQoL following the use of the CBT resource (mean score difference = -0.03, t = 2.14, df = 46, P < 0.05, Cohen's d ES = 0.3). The self-help approach had high levels of acceptability to stakeholders. These findings provide preliminary evidence for the effectiveness and acceptability of the resource in

  12. Are there differences in oral health and oral health behavior between individuals with high and low dental fear?

    Science.gov (United States)

    Schuller, Annemarie A; Willumsen, Tiril; Holst, Dorthe

    2003-04-01

    Epidemiological studies of the relationship between dental fear, use of dental services, and oral health in different age groups in a common population are scarce. Dental fear and its relationships are usually described in individuals with high dental fear only. The purposes of this study were to describe the prevalence of dental fear in the Norwegian adult population according to age, and to explore differences in oral health, oral hygiene, and visiting habits between individuals with high and low dental fear. For the present study, data from the Trøndelag-94 study were used. The prevalence of dental fear in our study population of adults in Trøndelag, Norway was 6.6%. There was a tendency for individuals with high dental fear to engage in avoidance behavior more frequently than the low dental fear group. Individuals with high dental fear had a statistically significantly higher number of decayed surfaces (DS), decayed teeth, (DT) and missing teeth (MT) but a statistically significantly lower number of filled surfaces (FS), filled teeth (FT), functional surfaces (FSS), and functional teeth (FST). There were no differences in DMFS and DMFT between the groups of high and low dental fear. Since one of the superior aims of the dental profession is to help a patient to achieve a high number of functional teeth throughout life, consequently detecting and treating dental fear should therefore be an important aspect of dental processionals' work.

  13. Educating dental students about diet-related behavior change: does experiential learning work?

    Science.gov (United States)

    Taylor, George W; Stumpos, Madelyn L; Kerschbaum, Wendy; Inglehart, Marita Rohr

    2014-01-01

    The objective of this study was to explore whether an experiential exercise in a nutrition class would a) increase dental students' motivation to change their own diet-related behavior, b) improve their understanding of theoretical concepts related to behavior change, and c) improve their attitudes towards educating their patients about diet-related behavior. Data were collected from 218 senior dental students in one dental school (2010: 106; 2011: 112) during their nutrition class. The students agreed at the beginning that it was important to change their own diet-related behavior. After one week, the majority agreed that they had changed how they felt and thought about the targeted behavior and what they actually did. After three weeks and at the end of the term, they rated the exercise as helpful for gaining a better understanding of health education theories. The majority indicated that the exercise had helped them understand the difficulty of diet-related behavior change and that it had increased their interest in helping patients change their diet-related behavior. In conclusion, this study suggests that experiential learning about diet-related behavior change is likely to affect students' own behavior positively and to result in increased understanding of behavior change theories and positive behavioral intentions concerning future health education efforts with patients.

  14. How surgical mentors teach: a classification of in vivo teaching behaviors part 1: verbal teaching guidance.

    Science.gov (United States)

    Sutkin, Gary; Littleton, Eliza B; Kanter, Steven L

    2015-01-01

    To illuminate surgical teaching at a fine level of detail by filming intraoperative communication between surgical attending physicians and trainees and provide a naturalistic categorization and analysis of verbal teaching behaviors. Live, intraoperative verbal exchanges between surgical attending physicians and their trainees (residents and fellows) were filmed, and key verbal teaching moments were transcribed. In follow-up interviews, attending physicians and trainees watched video clips of their teaching case and answered open-ended questions about their surgical teaching methods. Using a grounded theory approach, we examined the videos and interviews for what might be construed as a teaching behavior and refined verbal teaching categories through constant comparison. We filmed 5 cases in the operating suite of a university teaching hospital that provides gynecologic surgical care. We included 5 attending gynecologic surgeons, 3 fellows, and 5 residents for this study. More than 6 hours of film, 3 hours of interviews, and more than 400 verbal teaching utterances from our participating attending surgeons were transcribed. We found that attending surgeons used unique types of verbal guidance to describe relevant anatomy, explain the rationale behind a specific surgical action, command the trainee to perform the next step, reference a specific aspect of the surgery, and provide an indirect verbal construct. Attending physicians prefixed speech with polite terms and used terse language, colorful verbal analogies, and sometimes humor. Our participants denied a significant Hawthorne effect. Interrater reliability was high using Cohen κ with 0.77 for the verbal categories. Our categorization of live intraoperative verbal teaching can provide a measurable, replicable basis for studying how spoken guidance can lead to the best intraoperative learning. Because surgical teaching occurs on a microscopic level, film review is important when analyzing intraoperative teaching

  15. Correlation of dental health behavior with health awareness and subjective symptoms in a rural population in Japan.

    Science.gov (United States)

    Song, Wenqun; Tamaki, Yoh; Arakawa, Yuki; Ogino, Daisuke; Aoki, Kunie; Ohyama, Masakazu; He, Dawei; Osawa, Taeko; Ohsawa, Kazuo; Kadoma, Yoshinori; Nomura, Yoshiaki; Arakawa, Hirohisa

    2014-05-01

    The aim of this study was to determine the association of dental health behavior with health awareness, oral condition, and subjective symptoms in Japan. The present study included 1699 individuals who underwent dental checkups at the public health center of Miura City. All those who underwent dental checkups were asked to fill out a questionnaire. The correlation between having a regular dentist and each of the other items was analyzed. Undergoing regular checkups was significantly related to having a regular dentist. To analyze the correlation of dental health behavior with Subjective symptoms and Health awareness, structured equation modeling was performed following factor analysis. As a result, only the regression weight between dental health behavior and health awareness was found to be statistically significant. The present survey indicates that dental health behavior was significantly related to Health awareness but not to Subjective symptoms.

  16. Impact of Oral Health Behaviors on Dental Caries in Children with Intellectual Disabilities in Guangzhou, China

    Directory of Open Access Journals (Sweden)

    Zifeng Liu

    2014-10-01

    Full Text Available Dental care is consistently reported as one of the primary medical needs of children with disabilities (IDC. The aim of the present study was to explore the influence of oral health behaviors on the caries experience in children with intellectual disabilities in Guangzhou, China. A cross-sectional study was carried out in 477 intellectually disabled children, 12 to 17 years old, who were randomly selected from special educational schools in Guangzhou. A self-administered parental questionnaire was used to collect data on socio-demographic characteristics and oral health behavior variables, and 450 valid questionnaires were returned. Multiple regression analysis was used to examine the factors associated with dental caries. The average age of those in the sample was 14.6 years (SD = 1.3, 68.4% of whom were male, and the caries prevalence rate was 53.5% (DMFT = 1.5 ± 2.0. The factors significantly affecting the development of dental caries in IDC included gender, the presence or absence of cerebral palsy, and the frequency of dental visits and toothbrushing. In conclusion, the presence of cerebral palsy contributed to an increase risk of caries experience in intellectually disabled children, while toothbrushing more than twice a day and routine dental visits were caries-protective factors. Oral health promotion action may lead to a reduction in dental caries levels in IDC.

  17. Evaluation of children′s behavior aged 0-3 years during dental care: A longitudinal analysis

    Directory of Open Access Journals (Sweden)

    Ana Carolina SF

    2009-09-01

    Full Text Available Child temperament has been studied in various researches and may be useful to predict how a child responds to dental treatment, especially very young children. The purpose of the present longitudinal study was to evaluate the behavioral manifestation of children aged 0 to 3 years, considering different types of dental situation. A total of 169 children were selected and the following data were collected: the age of the child, gender, age of the mother, number of dental visits and their respective dates, stimuli offered to the child, and behavioral response to these stimuli. The children and their respective behaviors were divided into five groups according to the dental situation offered: control, missed visits, fluoride varnish, restoration, and dental trauma. The data were submitted to descriptive and inferential analysis using the chi-square test, with the level of significance set at 5%. Analysis of the different situation offered to infants during routine dental care revealed a predominance of collaborating and partially collaborating behavior, and age at the time of dental care influenced the behavior of the infants, irrespective of the stimulus group. The different types of dental situation provoked changes in the behavioral response of the children of certain age groups, especially in the dental trauma group.

  18. Dental health behaviors and periodontal disease indicators in Danish youths. A 10-year epidemiological follow-up

    DEFF Research Database (Denmark)

    Lissau, I; Holst, D; Friis-Hasché, E

    1990-01-01

    ) was operationalized as level of plaque, gingivitis, and dmfs. The results showed that dental health behaviors in childhood and in adulthood were together responsible for 9.4-13.8% of the variance in level of periodontal disease indicators. Determinants of early dental health behaviors in terms of plaque and dmfs...

  19. Prediction of success and failure of behavior modification as treatment for dental anxiety.

    Science.gov (United States)

    Eli, I; Baht, R; Blacher, S

    2004-08-01

    Behavior modification techniques are effective in the treatment of extreme dental anxiety, but their success is by no means absolute. In the present article, the Corah Dental Anxiety Scale (DAS), the self-report symptom inventory SCL-90R and a questionnaire accessing subjects' daydreaming styles (the Short Imaginal Process Inventory) were used to develop possible predictive measures for success and failure of behavior modification as a treatment for dental fear. The patients' level of distractibility and mind wandering, initial dental anxiety and somatization significantly predicted the success of therapy. The odds ratio indicated that the risk of therapy failure increased about 11 times with an increase of one scale of the Poor Attention Control Scale, about three times with an increase of one level of the mean DAS score, and 0.17 times with an increase of one level of somatization. The predictive value of the chosen scales was 80%. Thus, the use of these scales as part of an initial admittance process for patients who suffer from dental anxiety can enhance our ability to better recognize patients who are prone to fail behavior therapy as treatment for their problem, and enable their referral for other possible modes of treatment.

  20. Non-destructive thermo-mechanical behavior assessment of glass-ceramics for dental applications

    Science.gov (United States)

    Kordatos, E. Z.; Abdulkadhim, Z.; Feteira, A. M.

    2017-05-01

    Every year millions of people seek dental treatment to either repair damaged, unaesthetic and dysfunctional teeth or replace missing natural teeth. Several dental materials have been developed to meet the stringent requirements in terms of mechanical properties, aesthetics and chemical durability in the oral environment. Glass-ceramics exhibit a suitable combination of these properties for dental restorations. This research is focused on the assessment of the thermomechanical behavior of bio-ceramics and particularly lithium aluminosilicate glass-ceramics (LAS glass-ceramics). Specifically, methodologies based on Infrared Thermography (IRT) have been applied in order the structure - property relationship to be evaluated. Non-crystallized, partially crystallized and fully crystallized glass-ceramic samples have been non-destructively assessed in order their thermo-mechanical behavior to be associated with their micro-structural features.

  1. Subcritical crack growth behavior of AI2O3-Glass dental composites

    NARCIS (Netherlands)

    Zhu, Q.; With, G. de; Dortmans, L.J.M.G.; Feenstra, F.

    2003-01-01

    The purpose of this study is to investigate the subcritical crack growth (SCG) behavior of alumina-glass dental composites. Alumina-glass composites were fabricated by infiltrating molten glass to porous alumina preforms. Rectangular bars of the composite were subject to dynamic loading in air, with

  2. Subcritical crack growth behavior of AI2O3-Glass dental composites

    NARCIS (Netherlands)

    Zhu, Q.; With, G. de; Dortmans, L.J.M.G.; Feenstra, F.

    2003-01-01

    The purpose of this study is to investigate the subcritical crack growth (SCG) behavior of alumina-glass dental composites. Alumina-glass composites were fabricated by infiltrating molten glass to porous alumina preforms. Rectangular bars of the composite were subject to dynamic loading in air, with

  3. Dental education and care for underserved patients: an analysis of students' intentions and alumni behavior.

    Science.gov (United States)

    Smith, Carlos S; Ester, Todd V; Inglehart, Marita Rohr

    2006-04-01

    The U.S. surgeon general's report on oral health stressed the importance of providing dental care to underserved patients. The objectives of this study were to explore a) dental students' intentions and dentists' behavior concerning treating underserved patients, b) their perceptions of their education concerning these patients, and c) the relationship between dental education and their attitudes and behavior. Data were collected from 328 dental students (response rate: 77.5 percent) and 234 alumni (response rate: 43.7 percent). Only 67.4 percent of the students and 38 percent of the alumni indicated that their education had prepared them well to treat patients from different socioeconomic backgrounds; 71.3 percent of students and 55.2 percent of alumni responded that they had been well educated to treat patients from different ethnic/racial groups. The findings showed a positive relationship between the degree of curriculum focus on the importance of treating patients from all aspects of society and students' and alumni intentions to provide inclusive patient care to patients from diverse backgrounds. The more students agreed that their dental education had prepared them well to treat patients from different ethnic backgrounds, the more likely they were to report that they intended to treat these patients (r=.12; p=.033). In a similar manner, the more the alumni agreed that their dental education had prepared them well to treat patients in different communities, the more likely they were to treat patients from different socioeconomic backgrounds (r=.18; p=.009). In conclusion, these findings showed that access to oral health care for underserved patients could potentially be increased if dental students were more overtly educated about the importance of treating patients from all segments of society.

  4. Oral health attitudes and behavior of dental students at the University of Zagreb, Croatia.

    Science.gov (United States)

    Badovinac, Ana; Božić, Darko; Vučinac, Ivana; Vešligaj, Jasna; Vražić, Domagoj; Plancak, Darije

    2013-09-01

    The aim of this study was to investigate oral health behavior and attitudes of dental students in years 1 to 6 at the University of Zagreb, Croatia. The Croatian version of the Hiroshima University-Dental Behavioral Inventory (HU-DBI) was administered to predoctoral dental students, and collected data were analyzed. A total of 503 students (22.3 ± 2.6 mean age) completed the questionnaire. The response rate was 85.1 percent, and 72.4 percent of the respondents were female. These dental students' answers to eleven out of twenty HU-DBI items differed significantly by academic year. The mean questionnaire score was 6.62 ± 1.54, and the highest value of the HU-DBI score was in the fourth year (7.24 ± 1.54). First-year students were most likely to have a toothbrush with hard bristles and felt they had not brushed well unless done with hard strokes. Students in the sixth year were least worried about visiting a dentist and most frequently put off going to a dentist until having a toothache, indicating that rise of knowledge contributes to higher self-confidence. The mean HU-DBI score for these students showed average value, pointing out the need for a comprehensive oral hygiene and preventive program from the start of dental school.

  5. Moderate sedation helps improve future behavior in pediatric dental patients – a prospective study

    Directory of Open Access Journals (Sweden)

    Denise Espíndola ANTUNES

    Full Text Available Abstract There is little evidence on the long-term effects of pharmacological management in children undergoing dental treatment. This study aimed to assess children’s behavior in consecutive dental sessions following oral rehabilitation using different pharmacological regimens for behavioral control. Participants were preschoolers who were previously treated for caries under one of the following: no sedative, oral sedation with midazolam, oral sedation with midazolam/ketamine, or general anesthesia. The children’s behavior in the follow-up sessions was assessed using the Ohio State University Behavioral Rating Scale (OSUBRS; higher scores represented less cooperative behavior (range 5–20. Follow-up assessments were conducted on 50 children under four years old for up to 29 months. Data were analyzed by the Friedman/Wilcoxon tests and Cox regression model. OSUBRS mean (standard deviation scores for the whole sample decreased from 11.9 (5.4 before treatment to 6.8 (3.2 at the final recall session (p < 0.001. Moderate sedation with midazolam (OR 2.9, 95%CI 1.2–6.9 or midazolam/ketamine (OR 4.3, 95%CI 1.6–11.4 improved children’s future behavior. The general anesthesia group (n = 4 had a small sample size and the results should be considered with caution. Although invasive dental treatment negatively affected the child’s behavior in the dental chair, they became more cooperative over time. Moderately sedated children showed better prospective behavior than those in the non-sedation group.

  6. The persuasive power of oral health promotion messages: a theory of planned behavior approach to dental checkups among young adults.

    Science.gov (United States)

    Anderson, Christina N; Noar, Seth M; Rogers, Brandi D

    2013-01-01

    Although routine dental checkups are important for both oral and overall health, several factors influence young adults' use or nonuse of dental services. The two studies included in this report tested the theory of reasoned action (TRA), the theory of planned behavior (TPB), and an expanded TPB model in predicting young adults' routine dental checkups. Additionally, the study tested the perceived message effectiveness of TPB-based messages. Results support the use of an expanded TPB model (particularly adding satisfaction with the dentist and environmental constraints to the traditional model) for an understanding of routine dental checkup intention and behavior, and, most notably, provide support for the use of subjective norm-based messages to prompt dental checkups. This study lays the groundwork for a health communication campaign encouraging routine dental checkups among young adults. The use of targeting and tailoring to design effective oral health media campaign messages is discussed.

  7. The effect of virtual reality during dental treatment on child anxiety and behavior.

    Science.gov (United States)

    Sullivan, C; Schneider, P E; Musselman, R J; Dummett, C O; Gardiner, D

    2000-01-01

    Virtual reality, a three-dimensional computer generated world, has been shown to relax adults during dental treatment. The purpose of this study was to investigate the effect of virtual reality on the behavior and anxiety of children during dental treatment. The behavior, anxiety and heart rate of twenty-six children, ages five to seven years were evaluated for the first five minutes of two restorative treatment visits. Thirteen children viewed virtual reality at their first restorative visit and not the second, and thirteen children viewed virtual reality at the second restorative visit and not the first. Before and immediately following the restorative visits, each child was instructed to draw a human figure. The restorative appointments were video recorded and heart rate monitored. The drawings and videotapes were rated independently by two examiners. The Koppitz method of evaluating drawings was used to measure anxiety. The Frankl behavior rating scale was used to evaluate behavior. Differences (ANOVA) in behavior (p < or = 0.50) and anxiety (p < or = 0.65) were not significant. The overall pulse rate was significantly lower (ANOVA p < or = 0.001) when the child was wearing glasses and viewing virtual reality. In conclusion, virtual reality during dental treatment had no significant effect on the behavior or anxiety but significantly reduced the pulse.

  8. Relationship between Child and Parental Dental Anxiety with Child's Psychological Functioning and Behavior during the Administration of Local Anesthesia.

    Science.gov (United States)

    Vasiliki, Boka; Konstantinos, Arapostathis; Nikolaos, Kotsanos; Vassilis, Karagiannis; Cor, van Loveren; Jaap, Veerkamp

    The aims of this study were to determine: 1) the relationship between children's psychological functioning, dental anxiety and cooperative behavior before and during local anesthesia, 2) the relationship of parental dental anxiety with all the above child characteristics. There was a convenient sample of 100 children (4-12 years). Child dental anxiety and psychological functioning were measured using the "Children's Fear Survey Schedule" (CFSS-DS) and the "Strengths and Difficulties Questionnaire" (SDQ) respectively. Parental dental anxiety was measured using the "Modified Dental Anxiety Scale" (MDAS). All questionnaires were completed by parents. Before and during local anesthesia, the child behavior was scored by one experienced examiner, using the Venham scale. Non-parametric tests and correlations (Mann-Whitney, Spearman's rho) were used for the analysis. The mean SDQ score was 10±5.6 for boys (n=60) and 8.3±4.8 for girls (n=40) (p=0.038), but there was no correlation with children's age. The mean CFSS-DS score was 33.1±11.86 and there was no correlation with age or gender. Children with higher levels in the pro-social subscale of the SDQ had significantly less anxiety and better behavior before local anesthesia. Higher mean CFSS-DS scores were significantly associated with uncooperative behavior during local anesthesia (p=0.04). There was no correlation between parents' and their children's dental anxiety, psychological functioning and behavior. 46% of the children had previous dental experience in the last 6 months. As time since the last dental treatment increased, an improvement was found in children's behavior during local anesthesia. Child psychological functioning was related to dental anxiety and behavior during dental appointment involving local anesthesia.

  9. Long Term Fatigue Behavior of Zirconia Based Dental Ceramics

    Directory of Open Access Journals (Sweden)

    Moustafa N. Aboushelib

    2010-04-01

    Full Text Available This study evaluated the influence of cyclic loading on zirconia bar-shaped specimens after being subjected to three different surface treatments: particle abrasion with either 50 μm or 110 μm alumina and grinding with diamond points, while polished specimens served as a control. Statistical analysis revealed significant reduction (38-67% in flexure strength (P < 0.001 after three million cycles of dynamic loading for all surface treatments. Scanning electron imaging revealed grain boundary thickening, grain pull-out, and micro-cracking as the main structural defects. The results suggest that various surface treatments of zirconia based dental ceramics may significantly influence their long term fatigue resistance in the oral environment.

  10. SOCIAL FACTORS INFLUENCE FROM THE PERSPECTIVE OF DENTAL HEALTHCARE SERVICES CONSUMERS’ BEHAVIOR

    Directory of Open Access Journals (Sweden)

    Iuliana Petronela Gârdan

    2016-02-01

    Full Text Available In case of dental care consumption, a very special influence will have the social factors. This influence, from the level of consumers’ behavior can be analyzed on two distinct levels – that of normatives impose by the social organization particular for the community that the individual live and that of the influences of the social groups that individual are interacting with. Dental healthcare services consumption is conditioned at the level of consumption motivations by complex needs which are not confined only to the physiological needs of removing pain caused by a certain dental condition, but are going towards the need of self-image improvement, increasing the appreciation offered by the others group members, the congruence with other consumers decisions within the group (family members, friends, colleagues etc. It is important to note in this context the fact that the influence exerted by consumers exogenous factors (external influences in which we can integrate those from the social groups also will be combined with the one exerted by endogenous factors (personality, learning process, perceptions, attitudes, motivations etc, representing a continuum that shape consumers and allows in the same time the society shaping by them. The present article proposes a research conducted on dental healthcare services consumers. Results revealed the importance that a series of variables like the importance given to image in the workplace, family, friends and colleagues perception towards dental aesthetic, social class has in the context of consumer behavior. It is also noted that the influence of variables is mediated by the importance given to self-image, dental healthcare services consumption being determined by complex needs, consumption motivations being physiological – specific to some medical conditions and psychological – aesthetic or induced by the pressure corresponding to the need to comply with social norms.

  11. Comparison of periodontal health status and oral health behavior between Japanese and Chinese dental students.

    Science.gov (United States)

    Ohshima, Mitsuhiro; Zhu, Ling; Yamaguchi, Yoko; Kikuchi, Motohiro; Nakajima, Ichiro; Langham, Clive S; Lin, Wang; Otsuka, Kichibee; Komiyama, Kazuo

    2009-06-01

    A survey was carried out to compare periodontal health status and oral health behavior between Japanese and Chinese dental students. Subjects consisted of 118 students at Nihon University School of Dentistry and 92 students at the school of Stomatology, Nanjing Medical University. Saliva occult blood test was performed to classify whether subjects may have periodontal disease. Further questionnaires were given to evaluate different lifestyles and oral hygiene habit. The positive rate of the saliva occult blood test in Japanese dental students was 13.6%, and that of Chinese dental students was 43.5%. Bleeding from gingiva as a subjective symptom was as follows: Japansese 7.6%, Chinese 37.0%. Japanese dental students brushed for 13.5 min each day. The rate for Chinese students was 4.6 min. Use of interdental devices was as follows: Japanese 33.1%, Chinese 7.6%. Differences of periodontal disease rates between Japanese and Chinese dental students are thought to be differences in oral hygiene, indicating the need for improvements in hygiene measures in Nanjing City. The establishment and strengthening of oral hygiene education, including the importance of tooth brushing for prevention of periodontal disease, has been proposed.

  12. Evaluation of Behavioral Guidance Structure on Juvenile Salmonid Passage and Survival at Bonneville Dam in 2009

    Energy Technology Data Exchange (ETDEWEB)

    Faber, Derrek M.; Ploskey, Gene R.; Weiland, Mark A.; Deng, Zhiqun; Hughes, James S.; Kim, Jin A.; Fu, Tao; Fischer, Eric S.; Monter, Tyrell J.; Skalski, J. R.

    2011-03-01

    Pacific Northwest National Laboratory (PNNL) conducted an acoustic-telemetry study at Bonneville Dam in 2009 to evaluate the effects of a behavioral guidance structure (BGS) in the Bonneville Dam second powerhouse forebay on fish passage and survival through the second powerhouse (B2), the dam as a whole, and through the first powerhouse and spillway combined. The BGS was deployed to increase the survival of fish passing through B2 by increasing the percentage of outmigrating smolts entering the B2 Corner Collector (B2CC)—a surface flow outlet known to be a relatively benign route for downstream passage at this dam. The study relied on releases of live Juvenile Salmon Acoustic Telemetry System tagged smolts in the Columbia River and used acoustic telemetry to evaluate the approach, passage, and survival of passing juvenile salmon. Study results indicated that having turbine 11 in service is important for providing flow conditions that are comparable to those observed in pre-BGS years (2004 and 2005) and in 2008. This study supports the U.S. Army Corps of Engineers continual effort to improve conditions for juvenile anadromous fish passing through Columbia River dams.

  13. Socio-behavioral factors influence prevalence and severity of dental caries in children with primary dentition

    Directory of Open Access Journals (Sweden)

    Heloisa Carvalho Borges

    2012-12-01

    Full Text Available The aim of this study was to analyze the influence of socio-behavioral variables on the prevalence and severity of dental caries in 4- to 6-year-old children. A cross-sectional study was performed on a sample of 1993 children enrolled in 58 public preschools from Araçatuba City, São Paulo State, Brazil, during 2010. The exams were made using the decayed, missing, and filled teeth index (World Health Organization methodology and detection criteria for non-cavitated lesions. A tested, self-administered questionnaire was sent to parents to obtain information about their socio-behavioral characteristics. Standardization was performed to verify concordance among examiners (kappa = 0.84. The prevalence of cavitated caries lesions was 41.2% (821, and the prevalence of both, cavitated and non-cavitated caries lesions, was 43.9% (875. The means ± standard deviations of the decayed, missing, and filled teeth index for children aged 4, 5, and 6 years were 1.18 ± 2.45, 1.65 ± 2.67, and 1.73 ± 2.77, respectively. Caries were significantly more prevalent in children from families with low incomes and low educational levels. The presence of dental caries was associated with access to dental services (p < 0.05. The associations between both, cavitated and non-cavitated dental caries lesions, and the frequency of oral hygiene were statistically significant. The prevalence of dental caries in preschoolers was strongly associated with factors related to the children's parents. Therefore, information about parents' socio-economic status, behaviors, and attitudes in relation to oral health should be considered when planning prevention and educational programs for the oral health of preschool children.

  14. Socio-behavioral factors influence prevalence and severity of dental caries in children with primary dentition.

    Science.gov (United States)

    Borges, Heloisa Carvalho; Garbín, Cléa Adas Saliba; Saliba, Orlando; Saliba, Nemre Adas; Moimaz, Suzely Adas Saliba

    2012-01-01

    The aim of this study was to analyze the influence of socio-behavioral variables on the prevalence and severity of dental caries in 4- to 6-year-old children. A cross-sectional study was performed on a sample of 1993 children enrolled in 58 public preschools from Araçatuba City, São Paulo State, Brazil, during 2010. The exams were made using the decayed, missing, and filled teeth index (World Health Organization methodology) and detection criteria for non-cavitated lesions. A tested, self-administered questionnaire was sent to parents to obtain information about their socio-behavioral characteristics. Standardization was performed to verify concordance among examiners (kappa = 0.84). The prevalence of cavitated caries lesions was 41.2% (821), and the prevalence of both, cavitated and non-cavitated caries lesions, was 43.9% (875). The means ± standard deviations of the decayed, missing, and filled teeth index for children aged 4, 5, and 6 years were 1.18 ± 2.45, 1.65 ± 2.67, and 1.73 ± 2.77, respectively. Caries were significantly more prevalent in children from families with low incomes and low educational levels. The presence of dental caries was associated with access to dental services (p dental caries lesions, and the frequency of oral hygiene were statistically significant. The prevalence of dental caries in preschoolers was strongly associated with factors related to the children's parents. Therefore, information about parents' socio-economic status, behaviors, and attitudes in relation to oral health should be considered when planning prevention and educational programs for the oral health of preschool children.

  15. Galvanic corrosion behavior of titanium implants coupled to dental alloys.

    Science.gov (United States)

    Cortada, M; Giner, L; Costa, S; Gil, F J; Rodríguez, D; Planell, J A

    2000-05-01

    The corrosion of five materials for implant suprastructures (cast-titanium, machined-titanium, gold alloy, silver-palladium alloy and chromium-nickel alloy), was investigated in vitro, the materials being galvanically coupled to a titanium implant. Various electrochemical parameters E(CORR), i(CORR) Evans diagrams, polarization resistance and Tafel slopes) were analyzed. The microstructure of the different dental materials was observed before and after corrosion processes by optical and electron microscopy. Besides, the metallic ions released in the saliva environment were quantified during the corrosion process by means of inductively coupled plasma-mass spectrometry technique (ICP-MS). The cast and machined titanium had the most passive current density at a given potential and chromium-nickel alloy had the most active critical current density values. The high gold content alloys have excellent resistance corrosion, although this decreases when the gold content is lower in the alloy. The palladium alloy had a low critical current density due to the presence of gallium in this composition but a selective dissolution of copper-rich phases was observed through energy dispersive X-ray analysis.

  16. Innovative interventions to promote positive dental health behaviors and prevent dental caries in preschool children: study protocol for a randomized controlled trial.

    Science.gov (United States)

    Gao, Xiaoli; Lo, Edward Chin Man; McGrath, Colman; Ho, Samuel Mun Yin

    2013-04-30

    Dental caries (tooth decay) is highly prevalent and is largely attributable to unhealthy self-care behaviors (diet and oral hygiene). The conventional (health) education (CE), focusing on disseminating information and giving normative advice, often fails to achieve sustained behavioral changes. This study incorporates two innovative elements into CE: (i) motivational interviewing (MI), a client-centered counseling for changing behaviors, and (ii) an interactive caries risk assessment (RA) tool, which is devised to facilitate dental counseling and may enhance MI in several ways. Through a randomized, controlled, evaluator-blinded trial, three intervention schemes (CE, CE+MI, and CE+MI+RA) will be compared for their effectiveness in eliciting dentally healthy behaviors and preventing caries in preschool children. This study targets 3-year-old children who are at a critical stage for embedding health habits. Children with unfavorable dental behaviors (insufficient toothbrushing and/or frequent snacking) and their parents will be recruited from 12 participating kindergartens. Parent-child dyads (n=690) will be randomly assigned into three groups. In the first group (CE), oral health information and advice will be delivered to parents through pamphlets. In the second group (CE+MI), in addition to the pamphlets, individual MI counseling with each parent will be performed by one of two trained dental hygienists. In the third group (CE+MI+RA), besides pamphlets and MI, interactive RA will be integrated into MI to motivate parents and facilitate their informed decision making and goal planning. At baseline and after 12 and 24 months, parents will complete a questionnaire and children will undergo a dental examination. The effectiveness of the intervention schemes will be compared over 12 and 24 months. The primary outcome will be caries increment in children and proportion of caries-free children. Secondary outcomes will be changes in parental efficacy for protecting

  17. A randomized controlled trial of the effect of a brief cognitive-behavioral intervention on dental fear

    DEFF Research Database (Denmark)

    Spindler, Helle; Staugaard, Søren Risløv; Nicolaisen, Camilla;

    2015-01-01

    The objective of this study was to examine the effect of a brief cognitive-behavioral intervention for patients with dental fear in a private dental clinic. Patients presenting with subjectively reported dental fear were randomly assigned to either an immediate intervention (n = 53) or a waiting...... list (n = 51) group. Both groups received an identical intervention, but delayed by 4-6 weeks in the waiting list group. Participants were asked to fill out two self-report questionnaires of dental fear at pre- and post-intervention, and again at a 2-year follow-up assessment. Analysis of variance...... showed that dental fear was significantly reduced in the immediate intervention group (d = 1.5-2.2), compared with the waiting list group (d = 0.3-0.4). Additionally, all participants showed a significant reduction of dental fear following the brief intervention, and in the subgroup available for follow...

  18. Long-Term Fluoride Release from Dental Resins Affects STRO-1+ Cell Behavior.

    Science.gov (United States)

    Calarco, A; Di Salle, A; Tammaro, L; De Luca, I; Mucerino, S; Petillo, O; Riccitiello, F; Vittoria, V; Peluso, G

    2015-08-01

    Fluoride-releasing restorative dental materials can be beneficial to remineralize dentin and help prevent secondary caries. However, the effects of fluoride release from dental materials on the activity of dental pulp stem cells are not known. Here we investigate whether different fluoride release kinetics from dental resins supplemented with modified hydrotalcite (RK-F10) or fluoride-glass filler (RK-FG10) could influence the behavior of a human dental pulp stem cell subpopulation (STRO-1(+) cells) known for its ability to differentiate toward an odontoblast-like phenotype. The 2 resins, characterized by similar physicochemical properties and fluoride content, exhibited different long-term fluoride release kinetics. Our data demonstrate that long-term exposure of STRO-1(+) cells to a continuous release of a low amount of fluoride by RK-F10 increases their migratory response to transforming growth factor β1 (TGF-β1) and stromal cell-derived factor 1 (SDF-1), both important promoters of pulp stem cell recruitment. Moreover, the expression patterns of dentin sialoprotein (dspp), dentin matrix protein 1 (dmp1), osteocalcin (ocn), and matrix extracellular phosphoglycoprotein (mepe) indicate a complete odontoblast-like cell differentiation only when STRO-1(+) cells were cultured on RK-F10. On the contrary, RK-FG10, characterized by an initial fluoride release burst and reduced lifetime of the delivery, did not elicit any significant effect on both STRO-1(+) cell migration and differentiation. Taken together, our results highlight the importance of taking into account fluoride release kinetics in addition to fluoride concentration when designing new fluoride-restorative materials. © International & American Associations for Dental Research 2015.

  19. Perceived parenting style and mother’s behavior in maintaining dental health of children with Down syndrome

    Directory of Open Access Journals (Sweden)

    Siti Fitria Ulfah

    2016-12-01

    Full Text Available Background: The number of children with down syndrome in Surabaya has reached 924 children. Prevalence of gingivitis and dental caries (91% and 93.8%, respectively occurs in children with down syndrome aged 6 to 20 years. Oral and dental health problems are found in children with down syndrome because they have physical and motoric limitation in maintaining oral and dental hygiene, thus require parental care from mother. Perceived parenting style includes responsiveness and demandingness. Perceived parenting is crucial for mother whose children have Down syndrome in order to guide their health behavior, particularly to maintain oral and dental health. Purpose: The study aimed to analyze correlation between perceived parenting style and mother’s behavior in maintaining dental health of children with Down syndrome. Method: This cross sectional analytical study involved 40 mothers of children aged 7-13 years with Down syndrome enrolled in Special Education Elementary Schools Surabaya and Association of Parents of Children with Down syndrome Surabaya. Data of perceived parenting style (responsiveness and demandingness and mother’s behavior in maintaining dental health were obtained by questionnaire. Composition of each item in questionnaire of perceived parenting style and mother’s behavior in maintaining dental health of children with Down syndrome was passed through validity and reliability test. Data analysis was carried out using multiple linear regression correlation test. Result: This present study showed that perceived parenting style is significantly correlated with mother’s behavior in maintaining dental health of children with Down syndrome (R = 0.630, p = 0.000, with perceived parental responsiveness as a strong predictor. Mean score and standard deviation of perceived parental responsiveness and demandingness were 33.00±2.99 and 15.55±1.99, respectively. Conclusion: Perceived maternal parenting style in children with Down

  20. EVALUATION OF YOUNG’S KNOWLEDGE AND BEHAVIOR ABOUT DENTAL FLUOROSIS

    OpenAIRE

    Domingos, Patrícia Aleixo dos Santos; Neves, Amanda Soler; Rios, Mariana Gisele; Oliveira,Ana Luísa Botta Martins de

    2014-01-01

    AIM: This study has evaluated the knowledge about dental fluorosis and the behavior of young people regarding to the use of Fluor. MATERIAL AND METHODS: 313 students from High School of Tabatinga/SP, from 15 to 21 years old have answered a questionnaire with pre-encoded questions in which was approached the variables: gender, age, schooling level, dwelling, water consumption, oral hygiene habits, frequency of consults to the dentist and perception about clinical characteristics of fluorosis. ...

  1. The effect of surface treatment and position of the dental restoration on amalgam corrosion behavior

    Energy Technology Data Exchange (ETDEWEB)

    Mortazavi, V. [Isfahan Univ. of Medical Sciences, Faculty of Dentistry, Isfahan (Iran, Islamic Republic of); Fathi, M.H. [Isfahan Univ. of Technology, Materials Engineering Dept., Isfahan (Iran, Islamic Republic of)

    2003-07-01

    The aim of this research was to evaluate the effect of surface treatment, clinical operations and the condition and position of the dental restoration on amalgam corrosion behavior. Commercial amalgam alloy namely Oralloy was selected. Twenty-one amalgam samples were prepared. After triturating and condensation, the samples were divided into three groups and each group was finished by using one of three surface clinical procedures; carving, carving-burnishing, carving-burnishing-polishing. A special cylindrical mold was used in order to simulation of the interproximal areas and proximal surfaces of the dental restorations. Stainless steel matrix band was laid on the internal mold surfaces and amalgam paste was compacted in the mold. Electrochemical potentiodynamic tests were performed at a temperature of 37{+-}1 {sup o}C in physiological solution in order to determine and compare the corrosion behavior of dental amalgam samples, as an indication of biocompatibility. The results showed statistically significant differences between the mean corrosion current density values of three different groups of dental amalgam (P<0.05). The polished group possesses the lowest and the carved group shows the highest corrosion current density. The carved group shows more corrosion resistance in compare with the sample near the matrix band as an index of the proximal surfaces of restorations. It was concluded that even a simple clinical operation could effect on dental amalgam corrosion resistance. The proximal surfaces of the class II restorations are not only susceptible to concentration cell corrosion but also possess less corrosion resistance because dentist could perform no clinical surface treatment. (author)

  2. Relationship between knowledge, attitude, behavior, and self-efficacy on the radiation safety on dental hygienist

    Energy Technology Data Exchange (ETDEWEB)

    Han, Eun Ok; Jun, Sung Hee [Daegu Health College, Daegu (Korea, Republic of)

    2008-11-15

    The objective of this study is to draw an educational plant for reducing the probability of troubles caused by radiation for dental hygienists who are the major applicants of radiation equipments used in dental offices. This study investigated the knowledge and self-efficacy, which is the major variable that affects the attitude and behavior, on the radiation safety that is an educational approach. Also, this study obtained following results from a survey for 25 days from June 15, 2008 that was applied for 225 dental hygienists worked at dental offices and clinics in the area of Youngnam in order to verify the relationship between such variables. The average scores for the knowledge, attitude, and behavior were 54.28±16.33, 87.93±9.75, and 59.85±14.76, respectively. Also, the average score of the self-efficacy was 72.88±8.60. In the knowledge level for the radiation safety, ‘a case that prepares personal dosimeters’, ‘a case that establishes protection facilities’, ‘a case that presents 6⁓10 dental hygienists’, ‘a case that presents radiological technologists’, and ‘a case that is a general hospital’ represented high values. In the attitude level for the radiation safety, ‘a case who is a married person’, ‘a case that prepares personal dosimeters’, and ‘a case that is a general hospital’ showed high values. In the behavior level for the radiation safety, ‘a case that shows a career in dental hygienist or radiographic for 6⁓10 years’, ‘a case that attends radiation safety education’, ‘a case that establishes protection facilities’ showed high values. Also, in the self-efficacy level, ‘a case that who has a high education level more than graduate school education’ and ‘a case that establishes protection facilities’ represented high values. In the relationship between the knowledge, attitude, behavior, and self-efficacy for the radiation safety, it showed statistically significant differences in this

  3. Motivating and Inhibiting Factors to Oral-Dental Health Behavior in Adolescents: a Cross-Sectional Study

    Directory of Open Access Journals (Sweden)

    Zahra Hosseini

    2016-11-01

    Full Text Available Background Oral-dental diseases, especially tooth decay, are among the most common diseases in the world which usually begin in adolescence. Oral health during this period of life has a huge impact on the reduction of dental problems. This study aimed to determine motivating and inhibiting factors to oral-dental health behavior in adolescents. Materials and Methods This cross-sectional which had a descriptive and analytical design was conducted on 10-12th grade students in Kashan city, Iran. Using multi-stage sampling method and based on sampling size formula, a total of 290 of the students were randomly selected from the schools and were enrolled into the study. Then they received a research-made questionnaire containing questions about the knowledge and motivating and inhibiting factors to oral-dental health behavior. The collected data were analyzed using SPSS V.20 by independent t-test, ANOVA, and Pearson correlation coefficient. Results Of all, 62.8% of students brushed their teeth at least once a day. Moreover, 11.7% used dental floss once a day and 6.6% visited a dentist every six months. Oral-dental health behavior had a significant relationship with gender (P0.05. Conclusion When designing educational plans and interventions for improving oral-dental health behavior in students, it is necessary to adopt measures to enhance motivating factors and eliminate inhibiting factors.

  4. Association between depressive symptoms and dental care-seeking behavior among elderly Brazilian people

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    Gabriela Ádima de Camargo ÁVILA

    Full Text Available Abstract Background Depressive symptoms are highly prevalent among the elderly population (10%. These symptoms frequently appear when there is a loss of quality of life associated with social exclusion and the appearance of severe diseases. Feelings of sadness, discouragement, despondency and deception, and events such as the loss of close friends and family can also be related to these symptoms. The consequences of depressive symptoms include negative oral health outcomes, such as a decrease in the frequency of toothbrushing, greater prevalence of caries and higher probability of the appearance of periodontitis. Aim This study aimed to evaluate the association between the presence of depressive symptoms and problem-oriented oral healthcare behavior, as well as the absence of healthcare-seeking behavior. Material and method 872 elderly people living in two health districts in Porto Alegre were evaluated. They provided information on socioeconomic variables at an interview, and responded to the Geriatric Depression Scale-15 and to a questionnaire assessing dental care-seeking behavior. In addition, an oral examination was performed. When analyzed using Poisson regression with robust variance, the variables of male sex, less schooling, lower income, reduced number of teeth, presence of root remnants and presence of depressive symptoms were found to be independently associated with the outcome. Result There was a significant difference regarding dental care-seeking behavior in relation to elderly people presenting depressive symptoms and those in low socioeconomic strata having poor oral status. Conclusion It was concluded that these factors need to be taken into consideration when evaluating dental care-seeking behavior.

  5. Evaluation of a Behavioral Guidance Structure at Bonneville Dam Second Powerhouse including Passage Survival of Juvenile Salmon and Steelhead using Acoustic Telemetry, 2008

    Energy Technology Data Exchange (ETDEWEB)

    Faber, Derrek M.; Ploskey, Gene R.; Weiland, Mark A.; Deng, Zhiqun; Hughes, James S.; McComas, Roy L.; Kim, Jina; Townsend, R. L.; Fu, Tao; Skalski, J. R.; Fischer, Eric S.

    2010-02-12

    Summarizes research conducted at Bonneville Dam in 2008 to evaluate a prototype Behavioral Guidance Structure, that was deployed by the US Army Corps of Engineers in an effort to increase survival of outmigrating smolts at Bonneville Dam.

  6. Oral health status, dental anxiety, and behavior-management problems in children with oppositional defiant disorder.

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    Aminabadi, Naser A; Najafpour, Ebrahim; Erfanparast, Leila; Jamali, Zahra; Pournaghi-Azar, Fatemeh; Tamjid-Shabestari, Shabnam; Shirazi, Sajjad

    2016-02-01

    Mental disorders have been shown to affect children's oral health. This study was carried out to investigate the oral health status, dental anxiety (DA), and behavior-management problems (BMPs) during dental treatment in 6- to 9-yr-old children with oppositional defiant disorder (ODD)/attention-deficit hyperactivity disorder (ADHD). The study and control groups included 40 children with ODD/ADHD and 80 normal children, respectively. All participants received an amalgam restoration. During the procedure, the children's behavior was assessed using the Frankl Rating Scale and the Verbal Skill Scale. Parents rated their children's DA using the parental version of the Children's Fear Survey Schedule-Dental subscale (CFSS-DS). Comorbid anxiety disorders were assessed using the Kiddie-Sads-Present and Lifetime Version questionnaire. Oral health status was assessed using the gingival index and the decayed, missing, and filled teeth score for permanent (DMFT) and primary (dmft) teeth. The findings showed that DA and BMPs were significantly higher in children with ODD/ADHD than in the controls. Furthermore, the frequency of DA and BMPs was higher in children with both ODD/ADHD and a comorbid anxiety disorder than in those without comorbid anxiety disorder. Children with ODD/ADHD had significantly higher DMFT/dmft scores than those in the control group, whereas the difference in gingival index was not statistically significant. In conclusion, children with ODD/ADHD had higher levels of DA, BMP and poorer oral health status. © 2015 Eur J Oral Sci.

  7. Emotional intelligence subscales: are they correlated with child anxiety and behavior in the dental setting?

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    Aminabadi, Naser Asl; Adhami, Ziya Ebrahim; Oskouei, Sina Ghertasi; Najafpour, Ebrahim; Jamali, Zahra

    2013-01-01

    The present study aimed at evaluating the correlation between emotional intelligence subscales and childs anxiety and behavior in the dental setting. The study included 123 children aged 7-12 years, who were scheduled to attend two consecutive sessions. In the first session, the Bar-On Emotional Quotient Inventory: Youth Version (Bar-on EQ-I: YV) was administered to participants. The anxiety and behavior in children was evaluated during similar dental procedures in the second session using the Clinical Anxiety Rating Scale and the Frankl scale, respectively. 23 children were eliminated from the study, leaving 100 participants (47 boys and 53 girls) with a mean age of 9.32 +/- 1.59 years for study. There were statistically significant positive correlations between Frankl score and EQ total score (p EQ total score (p EQ and EQ subscales can predict significance variance of Frankl score (p 0.05). The results provide evidence that children with higher total EQ as well as higher scores of intrapersonal, interpersonal, adaptability and stress management scales can generally be flexible and effective in coping in the dental setting. Higher score in stress management subscale seems to be related to better control over affective information including anxiety compared with other subscales in stressful situations. Overall, they behave and cooperate better than children with lower scores.

  8. Risk behaviors related to eating disorders in adolescents and its association with dental erosion

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    Daniella Fagundes SOUTO

    Full Text Available Abstract Introduction The overvaluation of thinness as a standard of beauty has contributed to the development of eating disorders and has mainly affected adolescents and young adults. Objective To evaluate the prevalence of risk behaviors for eating disorders and their association with dental erosion in adolescents. Material and method This is a cross-sectional observational epidemiological study. The sample consisted of 278 adolescents aged 12 to 19 years, enrolled in a State School in Campinas - SP. Two questionnaires were used for the data collection on eating disorders: Bulimic Investigatory Test of Edinburgh and Eating Attitudes Test -26. The presence of erosion was evaluated by calibrated examiners. Result The mean age of the sample was 14.8 years. The prevalence of mean risk for bulimia in the sample was 43.2% (95% CI: 37.3%-49.0% and the prevalence of adolescents with a probability of developing bulimia was 53.2% (95% CI: 47.4%-59.1%. Of the total, 11.9% (95% CI: 8.1%-15.7% showed results suggestive of anorexia. Among women, 66.9% were classified as probability developing bulimia, whereas in men the prevalence was 39.0%. As for dental erosion, only 1.1% of the sample presented erosion. Conclusion The study pointed to large number of adolescents with risk behaviors for eating disorders but no association was found with dental erosion due to low prevalence.

  9. Human dental pulp stem cell behavior using natural nanotolith/bacterial cellulose scaffolds for regenerative medicine.

    Science.gov (United States)

    Olyveira, Gabriel Molina; Acasigua, Gerson Arisoly Xavier; Costa, Ligia Maria Manzine; Scher, Cristiane Regina; Xavier Filho, Lauro; Pranke, Patricia Helena Lucas; Basmaji, Pierre

    2013-08-01

    Adhesion and Viability study with human dental pulp stem cell using natural nanotolith/bacterial cellulose scaffolds for regenerative medicine are presented at first time in this work. Nanotolith, are osteoinductors, i.e., they stimulate bone regeneration, enabling higher cells migration for bone tissue regeneration formation. This is mainly because nanotoliths are rich minerals present in the internal ear of bony fish. In addition, are part of a system which acts as a depth sensor and balance, acting as a sound vibrations detector and considered essential for the bone mineralization process, as in hydroxiapatites. Nanotoliths influence in bacterial cellulose was analyzed using transmission infrared spectroscopy (FTIR). Results shows that fermentation process and nanotoliths agglomeration decrease initial human dental pulp stem cell adhesion however tested bionanocomposite behavior has cell viability increase over time.

  10. Characterization of the bioactive and mechanical behavior of dental ceramic/sol-gel derived bioactive glass mixtures.

    Science.gov (United States)

    Abbasi, Zahra; Bahrololoum, Mohammad E; Bagheri, Rafat; Shariat, Mohammad H

    2016-02-01

    Dental ceramics can be modified by bioactive glasses in order to develop apatite layer on their surface. One of the benefits of such modification is to prolong the lifetime of the fixed dental prosthesis by preventing the formation of secondary caries. Dental ceramic/sol-gel derived bioactive glass mixture is one of the options for this modification. In the current study, mixtures of dental ceramic/bioactive glass with different compositions were successfully produced. To evaluate their bioactive behavior, prepared samples were immersed in a simulated body fluid at various time intervals. The prepared and soaked specimens were characterized using Fourier transform infrared spectroscopy, X-ray diffractometry and scanning electron microscopy. Since bioactive glasses have deleterious effects on the mechanical properties of dental ceramics, 3-point bending tests were used to evaluate the flexural strength, flexural strain, tangent modulus of elasticity and Weibull modulus of the specimens in order to find the optimal relationship between mechanical and bioactive properties.

  11. The knowledge, attitude and behavior on the radiation safety management for dental hygiene major students

    Energy Technology Data Exchange (ETDEWEB)

    Jeon, Yeo Reong; Cho, Pyong Kon; Kim, Yong Min [Dept. of Radiological Science, Daegu Catholic University, Daegu (Korea, Republic of); Han, Eun Ok [Korea Academy of Nuclear Safety, Seoul (Korea, Republic of); Jang, Hyon Chul [Dept. of Radiological Technology, Suseong College, Daegu (Korea, Republic of); Ko, Jong Kyung [Radiation Safety Management Commission, Daegu Health College, (Korea, Republic of)

    2015-12-15

    This study tries to find the educational basis based on the radiation safety knowledge, attitudes and behaviors to check the level of radiation safety behavior in domestic students who study dental hygiene. The students of 3rd and 4th grades in 83 universities which have registered on the Korean University Education Council were involved, and they were given a questionnaire for this study. The questionnaire was provided via visit with 20 copies to each university (total 1660 copies), mail by post and e-mail. Among them, we analyzed only 723 copies that we can trust. The data were analyzed with frequency, percentage, mean, standard deviation and Pearson’s correlation using the SPSS/WIN 15.0. As a result, there are correlations in the students’ knowledge, attitudes and behaviors regarding the radiation safety management. It means that the education which can improve the knowledge and attitudes should be applied to increase the action level of the radiation safety. In addition, the physical environment is the most closely correlated with the individual behavior, so it will be limited to improve the behavioral levels of the radiation safety if the physical environment is not prepared. Therefore, the physical environment should be supported to enhance the level of the radiation safety activity, and to increase the individual attitude level of radiation safety. The knowledge level of the radiation safety management is relatively lower than the attitudes level, and the behavior level is the lowest. Therefore, the education policy of the safety behavior must be enhanced. For domestic students, the educational intervention is necessary to improve their behavioral level of radiation safety management because they will be able to reduce the amount of radiation exposure of their patients in dental care after getting a job.

  12. Dental health status and oral health behavior among university students from five ASEAN countries.

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    Peltzer, Karl; Pengpid, Supa

    2017-02-01

    The aim of this study was to investigate dental health status and oral health behavior and associated factors among university students in five ASEAN countries (Indonesia, Malaysia, Myanmar, Thailand and Vietnam). Using anonymous questionnaires, data were collected from 3,344 undergraduate university students (mean age 20.5, SD=1.6; 58.3% female) from five ASEAN countries. Results indicate that 27.7% of students reported to have sometimes, most of the time or always having tooth ache in the past 12 months, 39.4% reported to have one or more cavities, 20.3% did not brush their teeth twice or more times a day, and 30.9% had never been to a dentist (or did not know it). In multivariate logistic regression analysis, older age, living in a lower middle income country, consumption of chocolate or candy, having made a dental care visit, and poor mental health was associated with tooth ache in the past 12 months. Being male, being 20 to 21 years old, coming from a wealthier family background, living in a lower middle income country, frequent consumption of soft drinks, not having consulted with a dentist in the past 12 months and weak beliefs in the benefits of tooth brushing were associated with inadequate tooth brushing frequency (chocolate or candy, frequent consumption of soft drinks and low physical activity was associated with inadequate or never dental care visit. Poor dental health status and oral health behaviors were found and various risk factors identified that can be utilized to guide interventions to improve oral health programs among university students.

  13. Dental Caries and its Socio-Behavioral Predictors- An Exploratory Cross-Sectional Study.

    Science.gov (United States)

    Kumar, Santhosh; Tadakamadla, Jyothi; Duraiswamy, Prabu; Kulkarni, Suhas

    To assess dental caries status and oral health related behavior of 12 year old school children in relation to urbanization and gender; to analyze the effect of socio-demographic and behavioral variables on dental caries experience. Study sample comprised 831, 12 year old school children in, India. Caries status was assessed by Decayed, missing, filled teeth (DMFT) index and a 16 item closed ended questionnaire was administered to children for assessing their oral health related knowledge, beliefs and behavior. Mean caries experience and prevalence was 1.94 and 64.9% respectively. Decay was the dominant component of DMFT. Greater proportion of female and urban children presented better oral health knowledge, beliefs and practices. Boys were more liable (OR=1.2, 95% CI=1.10-1.96) for having caries than girls. Children living in rural areas and whose parents were not professionals or semiprofessionals were more likely to experience caries. Children whose mothers were unskilled or house wives were more than twice likely to present caries (OR=2.14, 95% CI-2.03-2.45) than those children whose mothers were skilled or semi-skilled. Children of illiterate fathers and mothers were 1.09 (95% CI, 1.02-1.49) and 1.98 (95% CI, 1.13-1.99) times more likely to have dental caries than those children whose parents had greater than 10 years of education. Children, those who cleaned their teeth less than once a day presented an odds ratio of 1.36 (CI-1.17-1.86) also higher odds of dental caries was observed in children consuming sweets or soft drinks more than once a day. The prevalence and severity of dental caries was low among urban children and girls than their rural and boy counterparts. In general, oral health knowledge, beliefs and practices were low, predominantly in rural and male children. Caries experience was significantly associated with gender, location of residence, brushing frequency, frequency of consumption of soft drinks and sweets, parents' occupation and education.

  14. On the corrosion behavior and biocompatibility of palladium-based dental alloys

    Science.gov (United States)

    Sun, Desheng

    Palladium-based alloys have been used as dental restorative materials for about two decades with good clinical history. But there have been clinical case reports showing possible allergy effects from these alloys. The aim of this study was to characterize the corrosion behavior and mechanisms of several palladium-based dental alloys by potentiodynamic polarization methods, electrochemical impedance spectroscopy (EIS), and scanning Kelvin probe force microscopy/atomic force microscopy (SKPFM/AFM), and to evaluate their biocompatibility by a cell culture technique and an animal model. Using SKPFM/AFM and scanning electron microscopy, the Ru-enriched phase from the use of ruthenium as a grain-refining element was identified as being slightly more noble than the palladium solid solution matrix in a high-palladium alloy. Other secondary precipitates that exist in the microstructures of these high-palladium alloys have minimal differences in Volta potential compared to the matrix. For high-palladium alloys, corrosion is generally uniform due to the predominant palladium content in the different phases. Potentiodynamic polarization and EIS have shown that representative palladium-silver alloys have low corrosion tendency and high corrosion resistance, which are equivalent to a well-known high-noble gold-palladium alloy in simulated body fluid and oral environments. The palladium-silver alloys tested are resistant to chloride ion corrosion. Passivation and dealloying have been identified for all of the tested palladium-silver alloys. The great similarity in corrosion behavior among the palladium-silver alloys is attributed to their similar chemical compositions. The variation in microstructures of palladium-silver alloys tested does not cause significant difference in corrosion behavior. The corrosion resistance of these palladium-silver alloys at elevated potentials relevant to oral environment is still satisfactory. The release of elements from representative dental

  15. Success of Dental Treatments under Behavior Management, Sedation and General Anesthesia.

    Science.gov (United States)

    Blumer, Sigalit; Costa, Liora; Peretz, Benjamin

    To present comparative study aims to assist the practitioner to choose between behavior modification (BM) techniques, pharmacologic sedation (N2O-O2 alone or combined with midazolam 0.5 mg/ kg) or routine general anesthesia (GA) for the most successful approach in enabling pediatric dental care. Dental records of 56 children treated in a university dental clinic between 2006-2016 were reviewed, and data on age, gender, required treatment (amalgam restorations, composite restorations, pulpotomy, and stainless steel crowns [SSC]), treatment approaches and therapeutic success at final follow-up were retrieved. Treatment under GA had the best success rates compared to both BM and pharmacologic sedation. N2O-O2 alone had a 6.1-fold greater risk of failure compared to N2O-O2+midazolam (p- <0.008). Amalgam restorations had a 2.61-fold greater risk of failure than SSC (p- <0.008). The GA mode yielded significantly greater success than the N2O-O2 mode alone. There were no significant differences in success rates between GA and combined midazolam 0.5 mg/kg+N2O-O2. When choosing restoration material, it is important to remember the high success rate of SSC compared to amalgam restoration.

  16. Incorporating Piaget's theories into behavior management techniques for the child dental patient.

    Science.gov (United States)

    Delitala, G

    2000-01-01

    This presentation reviews psychologist Jean Piaget's contributions to knowledge of cognitive development in children, relating it to behavior management techniques. Piaget theorized that children's knowledge about reality is realized by touching and observing; he termed this constructivism. He recognized that there are stages of development in knowledge acquisition. Practitioners should try to stimulate these needs to develop a positive dental experience. Another Piaget model is egocentrism, wherein a child views the world subjectively. The dentist should let the child patient know what's going on and have an active part in treatment.

  17. Effect of Educational Booklet and Lecture on Nutritional Knowledge, Attitude and Behavior of Third-Grade Male Guidance School Students

    Directory of Open Access Journals (Sweden)

    Mostafa Vahedian

    2014-06-01

    Materials and Methods: In this semi experimental study the effect of various educational methods on nutritional knowledge, attitude and behaviors of guidance school students in Qom city in the years 2011-12 was evaluated and compared by using of a four-part questionnaire (demographic, knowledge, attitude and behavior characteristics. Three schools were selected by cluster sampling method and from each school, 110 students were randomly grouped (330 students to control, booklet and lecture groups. Firstly, the questionnaires were completed by students as a pretest and then nutritional educational program was performed for three groups in three sessions; and three months later the same questionnaires were used again. Results: Interventions caused significant increase in the mean scores of knowledge, attitude, and behavior of two experimental groups (P0.05. The mean differencesof knowledge and attitude sections in lecture group were more statistically significant than booklet group (p<0.05. Conclusion: Both educational methods increased the level of nutritional knowledge, attitude, and behaviors of students which was more significant in lecture group. Collectively, the results of this study demonstrated positive effects of educational health programs on promotion of nutritional knowledge, attitude, and behaviors of students. Therefore it is necessary to consider educational programsin order to improve nutritional behavior.

  18. Influence of the casting processing route on the corrosion behavior of dental alloys.

    Science.gov (United States)

    Galo, Rodrigo; Rocha, Luis Augusto; Faria, Adriana Claudia; Silveira, Renata Rodrigues; Ribeiro, Ricardo Faria; de Mattos, Maria da Gloria Chiarello

    2014-12-01

    Casting in the presence of oxygen may result in an improvement of the corrosion performance of most alloys. However, the effect of corrosion on the casting without oxygen for dental materials remains unknown. The aim of this study was to investigate the influence of the casting technique and atmosphere (argon or oxygen) on the corrosion behavior response of six different dental casting alloys. The corrosion behavior was evaluated by electrochemical measurements performed in artificial saliva for the different alloys cast in two different conditions: arc melting in argon and oxygen-gas flame centrifugal casting. A slight decrease in open-circuit potential for most alloys was observed during immersion, meaning that the corrosion tendency of the materials increases due to the contact with the solution. Exceptions were the Co-based alloys prepared by plasma, and the Co-Cr-Mo and Ni-Cr-4Ti alloys processed by oxidized flame, in which an increase in potential was observed. The amount of metallic ions released into the artificial saliva solution during immersion was similar for all specimens. Considering the pitting potential, a parameter of high importance when considering the fluctuating conditions of the oral environment, Co-based alloys show the best performance in comparison with the Ni-based alloys, independent of the processing route.

  19. Dental Health Behaviors, Dentition, and Mortality in the Elderly: The Leisure World Cohort Study

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    Annlia Paganini-Hill

    2011-01-01

    Full Text Available In the last decade the effect of oral health on the general health and mortality of elderly people has attracted attention. We explored the association of dental health behaviors and dentition on all-cause mortality in 5611 older adults followed from 1992 to 2009 (median=9 years and calculated risk estimates using Cox regression analysis in men and women separately. Toothbrushing at night before bed, using dental floss everyday, and visiting the dentist were significant risk factors for longevity. Never brushing at night increased risk 20–35% compared with brushing everyday. Never flossing increased risk 30% compared with flossing everyday. Not seeing a dentist within the last 12 months increased risk 30–50% compared with seeing a dentist two or more times. Mortality also increased with increasing number of missing teeth. Edentulous individuals (even with dentures had a 30% higher risk of death compared with those with 20+ teeth. Oral health behaviors help maintain natural, healthy and functional teeth but also appear to promote survival in older adults.

  20. The Relationship Between Dental Trauma, Anxiety and Aggression Behavior in 7 to14 Year old Children in Kosovo

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    Fehim Haliti

    2017-01-01

    Full Text Available Background and aim. Dental fear has a negative impact on the treatment outcomes. The aim of this study was to evaluate dental anxiety among children with different measurement scales, with the aim of getting more precise and thorough estimations, as well as correlation between anxiety scale and aggression scale in children with/or without dental trauma. Material and methods. The study population include 254 children’s experience with dental trauma (59.1% male, and 251 children without dental trauma (46.6% male, between 7 and 14 years old, and their respective parents were evaluated during 2015-2016. Psychometric measures used for this purpose included several questionnaires. The result was tested with the X2 test, Student’s t-test, one-way ANOVA, and Pearson’s correlation coefficient. The Cronbach alpha was used to check the reliability and validity of the measures. The predetermined significance levels were set at 0.05. Results. All used test has satisfactory reliability and validity of the scale. The mean anxiety score was significantly higher in children with dental trauma. The children with dental trauma had a higher mean aggression scale (OAS. The girls had significantly higher mean anxiety score than boys in all used questionnaires. The mean aggression score was significantly higher for boys than girls in both compared groups (p<0.001. The Odds of the aggressive behavior in children with dental trauma decrease for 0.95 when the value of the mean DVSS-SV scale is increased by one units, and increase for 1.04 when the means anxiety score increased by one units. Conclusion. The mean anxiety score was significantly higher in children with dental trauma, as well as the girls and children who are more afraid of medical interventions (CMFQ. Also the children with dental trauma, and boys had a higher mean aggression scale (OAS. Significant correlation was found between dental anxiety level and aggressive behavior of children’s. The odds of

  1. Analysis of risk factors for cluster behavior of dental implant failures.

    Science.gov (United States)

    Chrcanovic, Bruno Ramos; Kisch, Jenö; Albrektsson, Tomas; Wennerberg, Ann

    2017-08-01

    Some studies indicated that implant failures are commonly concentrated in few patients. To identify and analyze cluster behavior of dental implant failures among subjects of a retrospective study. This retrospective study included patients receiving at least three implants only. Patients presenting at least three implant failures were classified as presenting a cluster behavior. Univariate and multivariate logistic regression models and generalized estimating equations analysis evaluated the effect of explanatory variables on the cluster behavior. There were 1406 patients with three or more implants (8337 implants, 592 failures). Sixty-seven (4.77%) patients presented cluster behavior, with 56.8% of all implant failures. The intake of antidepressants and bruxism were identified as potential negative factors exerting a statistically significant influence on a cluster behavior at the patient-level. The negative factors at the implant-level were turned implants, short implants, poor bone quality, age of the patient, the intake of medicaments to reduce the acid gastric production, smoking, and bruxism. A cluster pattern among patients with implant failure is highly probable. Factors of interest as predictors for implant failures could be a number of systemic and local factors, although a direct causal relationship cannot be ascertained. © 2017 Wiley Periodicals, Inc.

  2. Effect of using GPS autosteer guidance systems on the eye-glance behavior and posture of tractor operators.

    Science.gov (United States)

    Karimi, D; Henry, J; Mann, D D

    2012-10-01

    Tractor operators are prone to neck and back discomfort and disorders. It is well known that awkward posture is a major contributor to this problem. Previous studies have investigated the prevalence of awkward posture and the resulting discomfort and disorders among tractor operators. They have also suggested various ways to mitigate this problem. With the introduction of new autosteer guidance systems, the tractor operator is relieved from the task of steering the tractor for most of the time during field work. Therefore, it is expected that the operator's posture will change. The goal of this study was to investigate the changes in the eye-glance behavior and posture of tractor operators as a result of using autosteer guidance systems. An eye-tracking system and a camcorder were used to record the eye-glance behavior and posture of 13 tractor operators as they performed seeding operations. The experiment with each operator consisted of two sessions. In one session, the operator used an autosteer system, while in the other session the operator steered the tractor manually. Analysis of the data showed that the eye-glance behavior and posture of the operators were significantly different between the autosteer and manual steering sessions. With the autosteer system, the operators spent less time in an awkward posture, and they changed their posture less frequently. However, even with the autosteer system, the operators spent 1/3 of their time in an awkward posture. Subjective feedback from the operators indicated that more than half of them experienced back or neck/shoulder discomfort during or after seeding. It is essential that the recommendations of the previous studies, such as using large rear-view mirrors or a rotating tractor seat, be evaluated when the operator is using an autosteer system. Other tools, such as video cameras that show the attached equipment, should also be tested to evaluate their effectiveness in reducing the operator's exposure to awkward

  3. Electrochemical behavior of Co-Cr and Ni-Cr dental cast alloys

    Institute of Scientific and Technical Information of China (English)

    Viswanathan S. SAJI; Han-Cheol CHOE

    2009-01-01

    The cast structures influencing the electrochemical corrosion behavior of Co-Cr and Ni-Cr dental alloys were studied using potentiodynamic polarization and AC impedance in 0.9% (mass fraction) NaCl solution at (37±1) ℃. The phase and microstructure of the alloys that were fabricated using two different casting methods viz. centrifugal casting and high frequency induction casting, were examined using X-ray diffraction analysis, scanning electron microscopy and energy dispersive spectroscopy. The roles of alloying elements and the passive film homogeneity on the corrosion resistance of Co-Cr-Mo and Ni-Cr-Mo dental cast alloys were reviewed. The results of electrochemical study show that the dependence of corrosion resistance on the microstructure associated with the casting methods is marginal. The Co-Cr alloy exhibits more desirable corrosion resistance properties than the Ni-Cr alloy. There is severe preferential dissolution of Ni-rich, Cr and Mo depleted zones in the Ni-Cr alloy.

  4. Corrosion behavior of dental alloys used for retention elements in prosthodontics.

    Science.gov (United States)

    Nierlich, Judith; Papageorgiou, Spyridon N; Bourauel, Christoph; Hültenschmidt, Robert; Bayer, Stefan; Stark, Helmut; Keilig, Ludger

    2016-06-01

    The purpose of this study was to investigate the corrosion behavior of 10 different high noble gold-based dental alloys, used for prosthodontic retention elements, according to ISO 10271. Samples of 10 high-noble and noble gold-based dental alloys were subjected to: (i) static immersion tests with subsequent analysis of ion release for eight different elements using mass spectrometry; (ii) electrochemical tests, including open-circuit potential and potentiodynamic scans; and (iii) scanning electron microscopy, followed by energy-dispersive X-ray microscopy. The results were analyzed using one-way ANOVA and Sidak multiple-comparisons post-hoc test at a level of significance of α = 0.05. Significant differences were found among the 10 alloys studied for all ions (P potential and from 566.7 to 1367.5 mV for the breakdown potential. Both the open-circuit and the breakdown potential varied considerably among these alloys. Scanning electron microscopy analysis confirmed the existence of typically small-diameter corrosion defects, whilst the energy-dispersive X-ray analysis found no significant alteration in the elemental composition of the alloys. The results of this study reveal the variability in the corrosive resistance among the materials used for retention elements in prosthodontics.

  5. BEHAVIORAL ASPECTS IN COMMUNITY ORAL HEALTH PROBLEMS: A STUDY ON DENTAL TREATMENT DISCONTINUATION

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    Felix Aryadi Joelimar

    2015-08-01

    Full Text Available The low value of F/DMF-T ration on Performed Treatment Index in Indoneisa gives an indication of great problems in dental treatment utilization. Dental treatment utilization is affected by several obstacles, the greatest among which is psychosocial obstacles. In this study the psychosocial obstacles were detected through Intrinsic Obstacles, Obstacles in Transportation, and Obstacles in Dental Clinic related to their effects on their discontinuation of dental treatments at Balkesmas Kiara, Kecamatan Senen, Jakarta Pusat. The discontinuation of dental treatments was mostly affected by Intrinsic Obstacles, through its components as Types of Cases, Dental Anxiety Scale, and Intrinsic Motivation. Generally Obstacles in Transportation had no effects, excpet its components of Travel Time and Tiredness. Obstacles in Dental Clinic had a significant effect on the discontinuation of dental treatments through the unpleasant manner of the druggist, the hot waiting room, and the high expense on drugs.

  6. Dental caries, fluorosis, and oral health behavior of children from Herat, Afghanistan.

    Science.gov (United States)

    Schwendicke, Falk; Doost, Ferhat; Hopfenmüller, Werner; Meyer-Lueckel, Hendrik; Paris, Sebastian

    2015-12-01

    Decades of conflict, poverty, and dysfunctional public services have affected people's health in Afghanistan. To estimate treatment needs and guide health initiatives, epidemiologic data are required. Such data are currently unavailable for dental health. The present study assessed caries experience, fluorosis, and oral health behavior in children from Afghanistan. We performed a two-stage, school-based cross-sectional study in Herat province in Afghanistan. A total of 1059 children, 369 children aged 6-7, 300 aged 12, and 390 aged 15 years, were sampled. Caries was assessed according to ICDAS, and oral hygiene, dietary habits, and parental economic and educational status evaluated. Prevalence of fluorosis was assessed, and fluoride concentrations in drinking water and in used toothpastes were measured. Mean (SD) number of decayed, missing, or filled teeth was dmft = 4.88 (3.11), DMFT = 2.57 (2.16), and DMFT = 4.04 (3.03) in 6-/7-, 12-, and 15-year-olds, respectively. The majority of lesions in 6-year-olds were cavitated, while 12- and 15-year-olds showed more non- or microcavitated lesions. Most lesions, especially in young children, were untreated. Mean (range) water fluoride concentration was 0.37 (0.19-0.67) ppm. Fluoride concentrations in evaluated toothpastes did not meet internationally recommended levels. The majority of children showed no or minimal fluorosis. Having fluorosis, infrequently consuming sweets, or having a father with high education was associated with low caries experience (dmfs/DMFS children had high unmet dental treatment needs and caries experience. Sufficient access to restorative treatment and prevention measures is urgently required. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  7. Effects of pH and elevated glucose levels on the electrochemical behavior of dental implants.

    Science.gov (United States)

    Tamam, Evsen; Turkyilmaz, Ilser

    2014-04-01

    Implant failure is more likely to occur in persons with medically compromising systemic conditions, such as diabetes related to high blood glucose levels and inflammatory diseases related to pH levels lower than those in healthy people. The aim of this study was to investigate the effects of lower pH level and simulated- hyperglycemia on implant corrosion as these effects are critical to biocompatibility and osseointegration. The electrochemical corrosion properties of titanium implants were studied in four different solutions: Ringer's physiological solution at pH = 7.0 and pH = 5.5 and Ringer's physiological solution containing 15 mM dextrose at pH = 7 and pH = 5.5. Corrosion behaviors of dental implants were determined by cyclic polarization test and electrochemical impedance spectroscopy. Surface alterations were studied using a scanning electron microscope. All test electrolytes led to apparent differences in corrosion behavior of the implants. The implants under conditions of test exhibited statistically significant increases in I(corr) from 0.2372 to 1.007 μAcm(-2), corrosion rates from 1.904 to 8.085 mpy, and a decrease in polarization resistances from 304 to 74 Ω. Implants in dextrose-containing solutions were more prone to corrosion than those in Ringer's solutions alone. Increasing the acidity also yielded greater corrosion rates for the dextrose-containing solutions and the solutions without dextrose.

  8. Perception of Uncivil Classroom Behavior Among the Faculty Members and the Students in an Indian Dental Institution

    Directory of Open Access Journals (Sweden)

    Dantala Satyanrayana

    2017-01-01

    Full Text Available Introduction: Students and faculty members in the health professions classroom are expected to exhibit professional behaviors that are conducive to maintaining a positive learning environment. Aim: To assess the perception of uncivil classroom behavior among the students and the faculty members in a private dental institute in Hyderabad city, India. Materials and Methods: A cross-sectional questionnaire study was conducted among the dental students and the faculty members. The mean perceptions of uncivil classroom behavior were assessed using a self-administered questionnaire of Rowland and Srisukho containing 18 items. Results: A statistically significant difference was noted between the students and the faculty members for mean perception of uncivil classroom behavior (P = 0.002. When based on gender, no significant difference was observed among the students and the staff, but when individual items were considered, most of the male students and the faculty members perceived uncivil behaviors. Among all students, the mean perception of uncivil classroom behavior was significantly high among the undergraduates (68.17 ± 14.5 and least in postgraduates (62.67 ± 22.7, and among the faculty members, it was more among the professors (82.63 ± 4.0. Conclusion: Overall, the issue of uncivil classroom behavior remains a major concern, because 88.6% of the students agreed that they were involved in uncivil classroom behavior previously.

  9. Comparison of oral health behavior among dental students, students of other disciplines, and fashion models in Switzerland.

    Science.gov (United States)

    Kirchhoff, Julien; Filippi, Andreas

    2015-01-01

    Self-reliant oral health behavior exert great influence on the oral health of our society. The aim of the present study was to find out whether there is an occupation-related difference in the oral health behavior between dental students, students of other disciplines, and fashion models in German-speaking Switzerland. The survey comprised 19 questions which were asked using a web-based anonymous questionnaire. The investigation particularly inquired about employed auxiliaries and their application for an improvement of oral hygiene. In addition, the satisfaction with the own teeth and smile as well as the influence of the occupation or the study on oral hygiene were examined. Included in this evaluation were 204 dental students, 257 students of other disciplines, and 117 fashion models aged between 21 and 25 years. The evaluation reveals that the state of knowledge and the professional relationship affect the practice of oral hygiene, in particular among dental students. Fashion models, however, are most intensively concerned with body care and oral hygiene. Their attention is directed particularly to means supposed to improve the smile as well as to ensure fresh breath. Dental students and fashion models constitute a selected minority clearly demarcated from students of other disciplines regarding a higher awareness of self-reliant oral hygiene. The comparatively minor rating of oral health in a group of basically well-trained individuals suggests great need of educational work in the general population.

  10. Volunteerism among Dental Hygienists: The Relationship between a Practice Act Incentive, Behaviors, Perceptions and Motivational Orientations

    National Research Council Canada - National Science Library

    Wilkie, Sandra D; Gurenlian, JoAnn R; Freudenthal, Jacqueline J

    2015-01-01

    ... courses This study compared registered dental hygienists' donations of time and professional expertise, perceptions of volunteerism and motivational orientations as they practice in both the presence...

  11. Binocular Perception of 2D Lateral Motion and Guidance of Coordinated Motor Behavior.

    Science.gov (United States)

    Fath, Aaron J; Snapp-Childs, Winona; Kountouriotis, Georgios K; Bingham, Geoffrey P

    2016-04-01

    Zannoli, Cass, Alais, and Mamassian (2012) found greater audiovisual lag between a tone and disparity-defined stimuli moving laterally (90-170 ms) than for disparity-defined stimuli moving in depth or luminance-defined stimuli moving laterally or in depth (50-60 ms). We tested if this increased lag presents an impediment to visually guided coordination with laterally moving objects. Participants used a joystick to move a virtual object in several constant relative phases with a laterally oscillating stimulus. Both the participant-controlled object and the target object were presented using a disparity-defined display that yielded information through changes in disparity over time (CDOT) or using a luminance-defined display that additionally provided information through monocular motion and interocular velocity differences (IOVD). Performance was comparable for both disparity-defined and luminance-defined displays in all relative phases. This suggests that, despite lag, perception of lateral motion through CDOT is generally sufficient to guide coordinated motor behavior.

  12. Association of oral health behavior and the use of dental services with oral health literacy among adults in Tehran, Iran.

    Science.gov (United States)

    Naghibi Sistani, Mohammad Mehdi; Virtanen, Jorma I; Yazdani, Reza; Murtomaa, Heikki

    2017-01-01

    To assess the association of oral health behavior (OHB) and the use of dental services with oral health literacy (OHL) among Iranian adults. This was a cross-sectional population study of a random sample of 1031 adults aged 18-65 in Tehran, Iran. We collected data on tooth brushing frequency, the consumption of sugary snacks and beverages, and time since last dental visit. To measure OHL, we used a validated OHL adults' questionnaire (OHL-AQ). In addition to descriptive analysis, we used multiple logistic regression models to assess the association of OHB and the most recent dental visit with OHL while controlling for socioeconomic and demographic factors. The participants' mean age was 36.3 (standard deviation 12.9), and 51% were women. Of the participants, 81.3% reported brushing their teeth daily (≥1/day), 37.6% consumed sugary snacks or beverages between meals less than once daily (<1/day), and 36.8% used dental services within the past 6 months. In the adjusted models, high OHL scores significantly correlated with daily (≥1/day) tooth brushing (odds ratio [OR] = 1.97, 95% confidence interval [CI]: 1.30-2.98), the consumption of sugary snacks or beverages (<1/day between meals) (OR = 1.56, 95% CI: 1.13-2.15) and the recent use of dental services (≤6 months) (OR = 1.59, 95% CI: 1.15-2.21), respectively. OHL relates significantly to improved OHB and the use of dental services. Oral health promotion programs should, therefore, take into account improvements in adults' OHL, particularly in countries with developing health-care services.

  13. The impact of maternal emotional intelligence and parenting style on child anxiety and behavior in the dental setting

    OpenAIRE

    Aminabadi, Naser-Asl; Pourkazemi, Maryam; Babapour, Jalil; Oskouei, Sina Ghertasi

    2012-01-01

    Objective. The present study investigated the correlations between maternal emotional intelligence (EQ), parenting style, child trait anxiety and child behavior in the dental setting. Study design. One-hundred seventeen children, aged 4-6 years old (mean 5.24 years), and their mothers participated in the study. The BarOn Emotional Quotient Inventory and Bumrind�s parenting style questionnaire were used to quantify maternal emotional intelligence and parenting style. Children�s anxiety and beh...

  14. Effect of sputter deposited YSZ thin films on the fracture behavior of dental bioceramics

    Science.gov (United States)

    Teixeira, Erica Cappelletto Nogueira

    The fracture behavior of dental bioceramic materials was evaluated under physiologic conditions when modified by yttria stabilized zirconia (YSZ) thin film deposition. It was hypothesized that changing the YSZ thin film properties will produce a significant enhancement in the strength of bioceramic materials, ultimately promoting a more fatigue resistant construct. Porcelain, alumina, and zirconia were evaluated in terms of dynamic fatigue for an initial characterization of their fracture behavior. Data showed that strength degradation occurred in all three materials, most drastically in porcelain. Initial strength measurements, focused on depositing YSZ thin films on three unique substrates; porcelain, alumina, and zirconia, were carried out. A significant increase in strength was observed for alumina and porcelain. Since strength alone is not enough to characterize the fracture behavior of brittle materials, coated specimens of porcelain and zirconia were subjected to dynamic fatigue and Weibull analysis. Coated YSZ porcelain specimens showed a significant increase in strength at all tested stressing rates. YSZ coated zirconia specimens showed similar strength values at all stressing rates. The effect of film thickness on porcelain was also evaluated. Data demonstrated that film thickness alone does not appear to control increases in the flexural strength of a modified substrate. It is expected that deposition induced stress in YSZ sputtered films does not change with film thickness. However, a thicker film will generate a larger force at the film/substrate interface, contributing to delamination of the film. It was clear that in order to have a significant improvement in the fracture behavior of porcelain, changing the thickness of the film is not enough. The columnar structure of the YSZ films developed seems to favor an easy path for crack propagation limiting the benefits expected by the coating. The effect of a multilayered film, composed by brittle

  15. Sex Differences in Career Guidance of Undergraduate Math Students and the Relation to Help-Seeking Behaviors

    Science.gov (United States)

    Blondeau, Lauren; Awad, Germine H.

    2017-01-01

    Males continue to dominate mathematics-related areas in graduate school and employment, possibly due to the differential guidance that they receive as students. In the present study, 180 undergraduates completed an online survey on the career and graduate school guidance they received from mathematics professors. Student sex, professor sex, and…

  16. The impact of emotional intelligence and intelligence quotient (IQ) on child anxiety and behavior in the dental setting.

    Science.gov (United States)

    Aminabadi, Naser Asl; Erfanparast, Leila; Adhami, Ziya Ebrahim; Maljaii, Ensiyeh; Ranjbar, Fatemeh; Jamali, Zahra

    2011-09-01

    The aim of this study was to evaluate the impact of IQ and EQ on child's anxiety and behavior in the dental setting. One hundred and seven children (age range 7-12 years) were selected. BarOn Emotional Quotient Inventory: Youth Version (Baron EQ-I: YV) and the Raven's Colored Progressive Matrices (RCPM) tests were administered on the first examination session. Children's anxiety and behavior were evaluated using the modified child dental anxiety scale (MCDAS) and the sound, eye and motor (SEM) scales, respectively, during the second session. The mean (SD) age of subjects was 8.48 (1.41) years old. The result revealed a significant negative correlation between children's behavior and total EQ score (p EQ and MCDAS scores. Both anxiety (p EQ score (p EQ may be more effective than a low EQ in moderating the level of cooperation during dental treatment of children. IQ scores, on the other hand, were related to the child's EQ score (r = 0.20) and age (r = - 0.29).

  17. Electrochemical behavior of non-precious dental alloys in bleaching agents

    Energy Technology Data Exchange (ETDEWEB)

    Ameer, M.A. [Cairo University, Giza (Egypt). Chemistry Department; Khamis, E. [Alexandria University (Egypt). Chemistry Department; Al-Motlaq, M. [King Saudi University (Saudi Arabia). College of Science, Chemistry Department

    2004-11-15

    Corrosion behavior of dental alloys in artificial saliva containing different concentrations of hydrogen peroxide, carbamide peroxide and fluoride ions was studied using electrochemical technique. The alloys have been arranged according to its corrosion resistance in the hydrogen peroxide and carbamide peroxide as follows: wiron99 > wirolloy > wironit. Alloys suffer less corrosion rates in presence of carbamide peroxide than hydrogen peroxide. The effect of CH{sub 6}N{sub 2}O{sub 3} on the corrosion is less than the effect of H{sub 2}O{sub 2} and this is due to the presence of centers rich by electrons such as nitrogen and oxygen in CH{sub 6}N{sub 2}O{sub 3}. Nitrogen and oxygen adsorbed on the alloy surface forming protective layer isolate it relatively from the corrosive medium. The order of increasing resistivity of the alloys in fluoride solution is as follows: wironit > wiron99 > wirolloy. SEM for the three alloys in artificial saliva containing 0.015 M F{sup -} shows that wironit has less corrosion compared to the two other alloys and this agrees with the results obtained from potentiodynamic polarization curves and Nyquist impedance diagrams. (author)

  18. Simulation of dental microwear: Characteristic traces by opal phytoliths give clues to ancient human dietary behavior.

    Science.gov (United States)

    Gügel, I L; Grupe, G; Kunzelmann, K H

    2001-02-01

    In order to further evaluate the process of microwear formation on human dental enamel, microwear was experimentally produced by a chewing simulation with an Academic Center for Dentistry Amsterdam (ACTA) device. For this simulation, several cereal species were processed according to historical milling techniques, the experimental results of which were compared with those obtained from cereals processed after modern techniques, and also with natural microwear on early medieval human molars. Comparison of simulated microwear pits with natural microwear pits showed that the simulation led to traces which matched those found on the historical teeth in terms of both size and shape. Experimentally produced microwear pits were especially characteristic for the cereal species used in the simulations, and both pit morphology and enamel loss were a function of cereal phytolith content. Despite the high variability of phytolith size and shape, certain types are characteristic for certain cereals, which in turn are capable of producing cereal-specific microwear. This experimental approach is likely to further define ancient human dietary behavior, including food processing. Copyright 2001 Wiley-Liss, Inc.

  19. Knowledge and behavior of dentists in a dental school regarding toothbrush disinfection.

    Science.gov (United States)

    Peker, Ilkay; Akarslan, Zuhre; Basman, Adil; Haciosmanoglu, Nur

    2015-01-01

    The aim of this study was to evaluate the knowledge and behavior of dentists regarding toothbrush disinfection. This study included 147 dentists (88 women and 59 men) who were actively employed at a dental school in Ankara, Turkey. Participants were asked to fill out a standard questionnaire, which contained questions regarding their demographics, brushing habits, toothbrush storage and disinfection habits, toothpaste use, knowledge about toothbrush disinfection, and whether they advised their patients about toothbrush storage. Descriptive statistics were calculated, and statistical analyses were performed with t-tests, chi-squared tests, and Fisher exact tests, where appropriate. Among the 147 surveyed dentists, 62.6% and 85.7% reported that they did not have any knowledge about toothbrush disinfection and did not disinfect their toothbrushes, respectively. However, approximately two thirds of surveyed dentists thought that toothbrush disinfection should be performed by everyone, including healthy individuals. Significant associations were found between knowledge about toothbrush disinfection and the professional title of dentists, how they stored their toothbrushes, and whether their toothbrushes were in contact with each other during storage (p toothbrushes.

  20. Dental Health Behavior in the Prevention of Pulmonary TB at Health Centre in Several Provinces

    Directory of Open Access Journals (Sweden)

    Indirawati Tjahja Notohartojo

    2016-02-01

    Full Text Available Background: Pulmonary TB is an infectious disease of the respiratory tract caused by bacteria. Dental health professionals such as dentists and dental nurses are in charge of health personnel to prevent, treat, cure, teeth the mouth, so as not to arise or aggravate toothache. In doing their job as dental health workers is expected to use gloves or masks, and always wash their hands to avoid the transmission of pulmonary TB disease. Methods: A cross sectional study was conducted involving 78 dental health professionals in 50 primary health centers that were chosen in six districts in three provinces of Banten, South Kalimantan and Gorontalo. Data were obtained by interviews and processed using SPSSResults: More than 90% dental health workers in work wore masks gloves and washed their hands after work. There was a signifi cant relationship between exercise with dental health professionals with a p value of 0.007, which means a signifi cant. Conclusion: In performing their duties, dental health workers have already used personal protective equipment such asmasks, gloves, and washed their hands and did enough exercise. Recommendation: need to increase knowledge about pulmonary TB in dental health professionals.

  1. Evidence-Based Background Material Underlying Guidance for Federal Agencies in Implementing Strategic Sustainability Performance Plans - Implementing Sustainability: The Institutional-Behavioral Dimension

    Energy Technology Data Exchange (ETDEWEB)

    Malone, Elizabeth L. [Pacific Northwest National Laboratory (PNNL); Sanquist, Tom [Pacific Northwest National Laboratory (PNNL); Wolfe, Amy K. [ORNL; Diamond, Rick [Lawrence Berkeley National Laboratory (LBNL); Payne, Christopher [Lawrence Berkeley National Laboratory (LBNL); Dion, Jerry [ORNL

    2013-06-01

    This document is part of a larger, programmatic effort to assist federal agencies in taking action and changing their institutions to achieve and maintain federal sustainability goals, while meeting their mission goals. FEMP is developing guidance for federal agency efforts to enable institutional behavior change for sustainability, and for making sustainability “business as usual.” The driving requirement for this change is Executive Order (EO) 13514, Federal Leadership in Environmental, Energy, and Economic Performance. FEMP emphasizes strategies for increasing energy efficiency and renewable energy utilization as critical components of attaining sustainability, and promotes additional non-energy action pathways contained in EO 13514. This report contributes to the larger goal by laying out the conceptual and evidentiary underpinnings of guidance to federal agencies. Conceptual frameworks focus and organize the development of guidance. We outline a series of progressively refined conceptual frameworks, including a multi-layer approach, key steps in sustainability implementation, a process view of specific approaches to institutional change, the agency Strategic Sustainability Performance Plans (SSPPs), and concepts related to context-specific rules, roles and tools for sustainability. Additionally, we tap pertinent bodies of literature in drawing eight evidence-based principles for behavior change. These principles are important foundations upon which to build in selecting strategies to effect change in organizations. Taken together, this report presents a suite of components that inform the training materials, presentations, web site, and other products that provide guidance to federal agencies.

  2. The impact of maternal emotional intelligence and parenting style on child anxiety and behavior in the dental setting.

    Science.gov (United States)

    Aminabadi, Naser-Asl; Pourkazemi, Maryam; Babapour, Jalil; Oskouei, Sina-Ghertasi

    2012-11-01

    The present study investigated the correlations between maternal emotional intelligence (EQ), parenting style, child trait anxiety and child behavior in the dental setting. One-hundred seventeen children, aged 4-6 years old (mean 5.24 years), and their mothers participated in the study. The BarOn Emotional Quotient Inventory and Bumrind's parenting style questionnaire were used to quantify maternal emotional intelligence and parenting style. Children's anxiety and behavior was evaluated using the Spence Children's Anxiety Scale (SCAS) and Frankl behavior scale. Significant correlation was found between maternal EQ and child behavior (r=0.330; pparenting style and child behavior. There was no significant correlation between mother's total EQ and child's total anxiety; however, some subscales of EQ and anxiety showed significant correlations. There were significant correlations between authoritarian parenting style and separation anxiety (r=0.186; pparenting style and mother's EQ (r=0.286; pparenting style.

  3. Electrochemical impedance spectroscopy study of high-palladium dental alloys. Part I: behavior at open-circuit potential.

    Science.gov (United States)

    Sun, D; Monaghan, P; Brantley, W A; Johnston, W M

    2002-05-01

    Electrochemical impedance spectroscopy (EIS) was used to study the in vitro corrosion of three representative high-palladium alloys and a gold-palladium alloy for comparison. The corrosion resistances (measured as the charge transfer resistance R(CT) from an equivalent circuit) of the high-palladium alloys and the gold-palladium alloy were comparable in simulated body fluid and oral environments, and under simulated dental plaque. The great similarity in corrosion behavior for the three high-palladium alloys is largely attributed to their substantial palladium content and passivity in the laboratory test media, and possibly to their similar structure at the submicron level. Differences in composition and microstructure at the micron level and greater, including the effects of heat treatment simulating the firing cycles for dental porcelain, do not have noteworthy effects on the in vitro corrosion of the three high-palladium alloys. Good accuracy and convenience of extracting corrosion characteristics from equivalent circuit modeling, along with the capability of providing intrinsic information about the corrosion mechanism, enable EIS to be an excellent alternative method to conventional potentiodynamic polarization for evaluating the corrosion behavior of noble dental alloys.

  4. Advancing Health Promotion in Dentistry: Articulating an Integrative Approach to Coaching Oral Health Behavior Change in the Dental Setting.

    Science.gov (United States)

    Vernon, Lance T; Howard, Anita R

    2015-09-01

    Oral health is managed based on objective measures such as the presence and severity of dental caries and periodontal disease. In recent years, oral health researchers and practitioners have shown increasing interest in a widened array of physical, psychological, and social factors found to influence patients' oral health. In this article, we introduce a behavior change coaching approach that can be used to enhance psychosocial diagnosis and client-centered delivery of health-promoting interventions. Briefly, this health coaching approach is based on an interactive assessment (both physical and psychological), a non-judgmental exploration of patients' knowledge, attitudes, and beliefs, a mapping of patient behaviors that may contribute to disease progression, gauging patient motivation, and tailoring health communication to encourage health-promoting behavior change. Developed in a clinical setting, this coaching model is supported by interdisciplinary theory, research, and practice on health behavior change. We suggest that, with supervision, this coaching process may be learned.

  5. Dental prostheses mimic the natural enamel behavior under functional loading: A review article

    Directory of Open Access Journals (Sweden)

    Ahmed A. Madfa

    2016-02-01

    Full Text Available Alumina- and zirconia-based ceramic dental restorations are designed to repair functionality as well as esthetics of the failed teeth. However, these materials exhibited several performance deficiencies such as fracture, poor esthetic properties of ceramic cores (particularly zirconia cores, and difficulty in accomplishing a strong ceramic–resin-based cement bond. Therefore, improving the mechanical properties of these ceramic materials is of great interest in a wide range of disciplines. Consequently, spatial gradients in surface composition and structure can improve the mechanical integrity of ceramic dental restorations. Thus, this article reviews the current status of the functionally graded dental prostheses inspired by the dentino-enamel junction (DEJ structures and the linear gradation in Young's modulus of the DEJ, as a new material design approach, to improve the performance compared to traditional dental prostheses. This is a remarkable example of nature's ability to engineer functionally graded dental prostheses. The current article opens a new avenue for recent researches aimed at the further development of new ceramic dental restorations for improving their clinical durability.

  6. Assessment of child behavior in dental operatory in relation to sociodemographic factors, general anxiety, body mass index and role of multi media distraction

    Directory of Open Access Journals (Sweden)

    Gyanendra Mishra

    2016-01-01

    Full Text Available Background and Objectives: Children and adolescents comprise a group of individuals representing a large variation in size, competence, maturity, personality, temperament and emotions experience, oral health, family background, culture, etc. Furthermore, a growing child is in a constant state of flux as he grows up and actively interacts with the environment. Many factors contribute to the dental behavior of the child. The aim of this study was to evaluate the effect of sociodemographic factors, general anxiety, body mass index (BMI, and role of multimedia on the child behavior (CB in the dental operatory. Materials and Methods: Three hundred and one children aged 3-14 years and their parents participated in the study. In the first visit, the questionnaire was filled by the parent and general examination was done. During the second visit, the required dental procedure was rendered, and the behavior was recorded by a single examiner. Results: Among sociodemographic factors, increasing age is directly related to child′s positive behavior, whereas other factors such as gender and socioeconomic status (SES are not significantly related. General anxiety significantly affects the child′s behavior. BMI of the child is not related to child′s behavior in dental operatory. Multimedia was not found to be significantly affecting the behavior of the child in dental operatory. Interpretations and Conclusion: The principle conclusion of this study is that there is a significant association of age and treatment procedure rendered with the CB in the dental operatory whereas gender, SES, general anxiety, BMI, and multimedia do not show any significant association with the CB in the dental operatory.

  7. An update on local anesthesia for pediatric dental patients

    OpenAIRE

    Peedikayil, Faizal C.; Vijayan, Ajoy

    2013-01-01

    Pain control is an important part of dentistry, particularly in the management of children. Behavior guidance, and dose and technique of administration of the local anesthetic are important considerations in the successful treatment of a pediatric patient. The purpose of the present review is to discuss the relevant data on topics involved, and on the current methods available in the administration of local anesthesia used for pediatric dental patients.

  8. An update on local anesthesia for pediatric dental patients

    Science.gov (United States)

    Peedikayil, Faizal C.; Vijayan, Ajoy

    2013-01-01

    Pain control is an important part of dentistry, particularly in the management of children. Behavior guidance, and dose and technique of administration of the local anesthetic are important considerations in the successful treatment of a pediatric patient. The purpose of the present review is to discuss the relevant data on topics involved, and on the current methods available in the administration of local anesthesia used for pediatric dental patients. PMID:25885712

  9. An update on local anesthesia for pediatric dental patients

    OpenAIRE

    Peedikayil, Faizal C.; Vijayan, Ajoy

    2013-01-01

    Pain control is an important part of dentistry, particularly in the management of children. Behavior guidance, and dose and technique of administration of the local anesthetic are important considerations in the successful treatment of a pediatric patient. The purpose of the present review is to discuss the relevant data on topics involved, and on the current methods available in the administration of local anesthesia used for pediatric dental patients.

  10. Risk-averse purchasing behavior of female dentists and innovation in dental practice

    Directory of Open Access Journals (Sweden)

    James J McGrath

    2015-01-01

    Full Text Available Introduction: The aim of this study was to see if there was any correlation between the variables of age, gender, practice location and longevity, and type of practice on the risk-taking behavior of dentists in Connecticut. Risk-taking behavior was defined as the willingness to adopt new technologies. A questionnaire was used to gather data, and a series of questions were then posed to estimate the degree to which the responding dentists would be willing to implement the technology into their practices. Materials and Methods: Three hundred Connecticut dentists were randomly selected from a list of dentists that was provided by Benco Dental Supply Company. A questionnaire was written and mailed to all 300 dentists with a return envelope inside. One hundred twenty-nine dentists responded. The questionnaire contained questions to gather demographic information about the respondents. It posed a hypothetical situation that described a new imaging technology that was recently brought into the market. The only differences between this technology and current imaging machines were that it did not emit any radiation, and it was twice as expensive as comparable imaging technologies. A risk score was calculated based on the responses to the three main questions. Those who would adopt the technology quickly or immediately received higher risk scores, and those who would wait or would not buy the technology at all received low risk scores. The data were then analyzed with SPSS software to detect if there were statistically significant differences between different groups of dentists. Results: Male dentists were found to have higher risk scores than their female counterparts. Men in the 30-39-years age range had the highest risk scores, while women in this age range had the lowest. As age increased, the difference between the sexes decreased. Specialists were found to have higher risk scores compared to general dentists of the same gender; however, male

  11. Knowledge, attitude and health behavior of dental students towards HIV patients

    Directory of Open Access Journals (Sweden)

    Venu Shan

    2011-07-01

    Full Text Available Background: HIV/AIDS had profoundly affected every aspect of the health sector. Most importantly doctor’s attitude of avoiding treatment of HIV patients is mainly due to their apprehensions caused by their lack of understanding of the disease and its modes of transmission. Aims and objective: To investigate a group of dental students’ knowledge about HIV infection, attitudes towards treating HIV/AIDS patients and behaviour practices. Materials and methods: study population consisted of 150 dental students from College of Dental Science and Research Center, Bopal, Ahmedabad. who were treating patients in the clinics of the college. The survey instrument was a pre-designed and pre-tested questionnaire. Result: Mean age of the study population is 20.5 yrs. According to them most common modes of transmission – sexual transmission and contaminated blood transfusion. Preventive measures are use of condom and safe blood transfusion and common oral manifestation are Candidiasis, Apthous ulcer, Hairy leukoplakia. Range of score is 0-13. Mean score of knowledge regarding general and dental aspects was 9.73 and 5.08 respectively. Difference between two is statistically significant. Most of them were using gloves and mask but not using protective eye wear as Universal Work Precautions. Conclusions: These findings highlight the importance of teaching the dental students on various aspects of the disease. Universal Work Precautions implementation should be emphasized at an early level of their curriculum and reinforced from time to time.

  12. Dielectric analysis of depth dependent curing behavior of dental resin composites.

    Science.gov (United States)

    Steinhaus, Johannes; Moeginger, Bernhard; Grossgarten, Mandy; Rosentritt, Martin; Hausnerova, Berenika

    2014-06-01

    The aim of this study is to investigate depth dependent changes of polymerization process and kinetics of visible light-curing (VLC) dental composites in real-time. The measured quantity - "ion viscosity" determined by dielectric analysis (DEA) - provides the depth dependent reaction rate which is correlated to the light intensity available in the corresponding depths derived from light transmission measurements. The ion viscosity curves of two composites (VOCO Arabesk Top and Grandio) were determined during irradiation of 40s with a light-curing unit (LCU) in specimen depths of 0.5/0.75/1.0/1.25/1.5/1.75 and 2.0mm using a dielectric cure analyzer (NETZSCH DEA 231 with Mini IDEX sensors). The thickness dependent light transmission was measured by irradiation composite specimens of various thicknesses on top of a radiometer setup. The shape of the ion viscosity curves depends strongly on the specimen thickness above the sensor. All curves exhibit a range of linear time dependency of the ion viscosity after a certain initiation time. The determined initiation times, the slopes of the linear part of the curves, and the ion viscosities at the end of the irradiation differ significantly with depth within the specimen. The slopes of the ion viscosity curves as well as the light intensity values decrease with depth and fit to the Lambert-Beer law. The corresponding attenuation coefficients are determined for Arabesk Top OA2 to 1.39mm(-1) and 1.48mm(-1), respectively, and for Grandio OA2 with 1.17 and 1.39mm(-1), respectively. For thicknesses exceeding 1.5mm a change in polymerization behavior is observed as the ion viscosity increases subsequent to the linear range indicating some kind of reaction acceleration. The two VLC composites and different specimen thicknesses discriminate significantly in their ion viscosity evolution allowing for a precise characterization of the curing process even with respect to the polymerization mechanism. Copyright © 2014. Published by

  13. Dental Fluorosis

    Science.gov (United States)

    ... have been broadly termed dental fluorosis. What is dental fluorosis? Dental fluorosis is a condition that causes ... less than 2 milligrams per liter. What causes dental fluorosis? Dental fluorosis is caused by taking in ...

  14. Dental Amalgam

    Science.gov (United States)

    ... Products and Medical Procedures Dental Devices Dental Amalgam Dental Amalgam Share Tweet Linkedin Pin it More sharing options Linkedin Pin it Email Print Dental amalgam is a dental filling material which is ...

  15. Lifelong Guidance

    National Research Council Canada - National Science Library

    Noworol, Czesław

    2011-01-01

    .... Career guidance refers to services and activities intended to assist individuals, of any age and at any point throughout their lives, to make educational, training and occupational choices and to manage their careers...

  16. Evaluation of oral health attitude and behavior among a group of dental students in Puducherry, India: A preliminary cross-sectional study

    Directory of Open Access Journals (Sweden)

    Jananni Muthu

    2015-01-01

    Full Text Available Context: Oral behavior reflects individual perception on oral health. Behavior and attitude of oral health providers, especially dentists, towards oral health affect their capacity to deliver oral health care services. This attitude plays a important role in determining the oral health condition of population. Aim: The purpose of this study is to evaluate the oral health attitude and behavior among a group of dental students in India and to find any gender-based differences in terms of oral health attitude and behavior. Materials and Methods: A total of 282 dental students of Indira Gandhi Institute of Dental Sciences, SBV University, Puducherry, India participated in the study. A simplified English version of Hiroshima University Dental-Behavioral Inventory (HU-DBI was adopted. Statistical Analysis Used: SSP version 2.80 software was used to analyze the data. Chi-square test was used to find the differences in the distribution of “yes” among students from the different academic year as well as between male and female students. Statistical significance was set at P ≤ 0.05. Results: Statistical significance was observed for the responses between the students from different academic years brushing frequency, careful brushing of teeth, using brush with hard bristles, careful self-evaluation of brushing and satisfied appearance of teeth and gums. Male students preferred to use a tooth brush with hard bristles and regular mouth washes than female students. With regards to worrying about bad breath, male students had more “yes” responses than females. Conclusions: Oral health attitude and behavior increased with the increasing levels of dental education, and no significant differences were observed among male and female dental students.

  17. Importance of the Roughness and Residual Stresses of Dental Implants on Fatigue and Osseointegration Behavior. In Vivo Study in Rabbits.

    Science.gov (United States)

    Velasco, Eugenio; Monsalve-Guil, Loreto; Jimenez, Alvaro; Ortiz, Iván; Moreno-Muñoz, Jesús; Nuñez-Marquez, Enrique; Pegueroles, Marta; Pérez, Román A; Gil, Francisco Javier

    2016-12-01

    This study focuses on the fatigue behavior and bone-implant attachment for the more usual surfaces of the different CP-titanium dental implants. The implants studied were: as-received (CTR), acid etching (AE), spark-anodization (SA), and with a grit-blasted surface (GB). Residual stresses were determined by means of X-ray diffraction. The fatigue tests were carried out at 37°C on 160 dental implants, and the stress-failure (S-N) curve was determined. The fatigue tests showed that the grit-blasting process improved fatigue life. This is a consequence of the layer of compressive residual stresses that the treatment generates in titanium surfaces. Further, our aim was to assess and compare the short- and midterm bone regenerative potential and mechanical retention of the implants in bone of New Zealand rabbits. The mechanical retention after 4 and 10 weeks of implantation was evaluated with histometric and pull-out tests, respectively, as a measure of the osseointegration of the implants. The results demonstrated that the GB treatment produced microrough that accelerated bone tissue regeneration and increased mechanical retention in the bone bed at short periods of implantation in comparison with all other implants tested. The GB surface produced an improvement in mechanical long-time behavior and improved bone growth. These types of treated implants can have great potential in clinical applications, as evidenced by the outcomes of the current study.

  18. IFN-γ regulates human dental pulp stem cells behavior via NF-κB and MAPK signaling

    Science.gov (United States)

    He, Xinyao; Jiang, Wenkai; Luo, Zhirong; Qu, Tiejun; Wang, Zhihua; Liu, Ningning; Zhang, Yaqing; Cooper, Paul R.; He, Wenxi

    2017-01-01

    During caries, dental pulp expresses a range of pro-inflammatory cytokines in response to the infectious challenge. Interferon gamma (IFN-γ) is a dimerized soluble cytokine, which is critical for immune responses. Previous study has demonstrated that IFN-γ at relative high concentration (100 ng/mL) treatment improved the impaired dentinogenic and immunosuppressive regulatory functions of disease-derived dental pulp stem cells (DPSCs). However, little is known about the regulatory effects of IFN-γ at relative low concentration on healthy DPSC behavior (including proliferation, migration, and multiple-potential differentiation). Here we demonstrate that IFN-γ at relatively low concentrations (0.5 ng/mL) promoted the proliferation and migration of DPSCs, but abrogated odonto/osteogenic differentiation. Additionally, we identified that NF-κB and MAPK signaling pathways are both involved in the process of IFN-γ-regulated odonto/osteogenic differentiation of DPSCs. DPSCs treated with IFN-γ and supplemented with pyrrolidine dithiocarbamate (PDTC, an NF-κB inhibitor) or SB203580 (a MAPK inhibitor) showed significantly improved potential for odonto/osteogenic differentiation of DPSCs both in vivo and in vitro. These data provide important insight into the regulatory effects of IFN-γ on the biological behavior of DPSCs and indicate a promising therapeutic strategy for dentin/pulp tissue engineering in future endodontic treatment. PMID:28098169

  19. Are there differences in oral health and oral health behavior between individuals with high and low dental fear?

    NARCIS (Netherlands)

    Schuller, Annemarie A; Willumsen, Tiril; Holst, Dorthe

    2003-01-01

    Epidemiological studies of the relationship between dental fear, use of dental services, and oral health in different age groups in a common population are scarce. Dental fear and its relationships are usually described in individuals with high dental fear only. The purposes of this study were to de

  20. Are there differences in oral health and oral health behavior between individuals with high and low dental fear?

    NARCIS (Netherlands)

    Schuller, A.A.; Willumsen, T.; Holst, D.

    2003-01-01

    Epidemiological studies of the relationship between dental fear, use of dental services, and oral health in different age groups in a common population are scarce. Dental fear and its relationships are usually described in individuals with high dental fear only. The purposes of this study were to

  1. Development of new forms of self-injurious behavior following total dental extraction in Lesch-Nyhan disease.

    Science.gov (United States)

    Gisbert de la Cuadra, Livia; Torres, Rosa J; Beltrán, Luis M; Sánchez, Arantxa; Puig, Juan G

    2016-12-01

    We report two Lesch-Nyhan Disease (LND) patients who developed new forms of self-injurious behavior following total dental extraction. Patients 1 and 2 were submitted to total teeth extraction at the age of 13 and 8 years, respectively, due to continuous self-biting, not prevented by mouth guards. Severity of dystonia was markedly reduced and quality of life improved. After 12 and 17 months, respectively, patient 1 started rubbing one foot against other and scratching toenails with his hands, and patient 2 stuck his legs and feet against hard objects. These forms of self-injury behavior could be easily prevented with protective materials, according to the mothers.

  2. The effect of mucine, IgA, urea, and lysozyme on the corrosion behavior of various non-precious dental alloys and pure titanium in artificial saliva.

    Science.gov (United States)

    Bilhan, H; Bilgin, T; Cakir, A F; Yuksel, B; Von Fraunhofer, J A

    2007-11-01

    The corrosion of dental alloys has biological, functional, and aesthetic consequences. Various studies have shown that protein solutions can inhibit the corrosion of alloys. This study is planned to determine the relationship of organic constituents of saliva and the corrosion of dental alloys. The organic constituents are IgA, mucine, urea, and lysozyme which are encountered in the highest amounts in saliva and the dental materials are titanium (Ti), Co-Cr-Mo and Ni-Cr-Mo alloys, and dental amalgam, the most often used metallic components in dentistry. In particular, the interactions between the commonest salivary proteins, IgA, mucine, urea and lysozyme, and Ti, Co-Cr-Mo, Ni-Cr-Mo and dental amalgam were investigated. Each alloy was evaluated by cyclic polarization in each medium. The general anodic and cathodic behavior during forward and reverse cycles, the corrosion and passivation current densities (muA/cm2 ), and the corrosion and the pitting potentials (mV) were determined. The results have shown that Ni-Cr-Mo and dental amalgam alloys are highly susceptible to corrosion in all the investigated media. The Co-Cr-Mo alloy has shown high passive current densities in the solution of mucine and lysozyme in artificial saliva. Titanium instead, has shown a high resistance to corrosion and a stable passive behavior in all media, especially in a solution of mucine and IgA in synthetic saliva. Mucine and IgA, as well as urea and lysozyme, appeared to enhance the formation of a passive film layer on the Ti metal surface, thus inhibiting the corrosion. Based on the study findings, and especially considering the problem of nickel allergy and toxicity of mercury released from dental amalgam, the use of Co-Cr-Mo alloys and Ti to Ni-Cr-Mo alloys is recommended and alternatives to dental amalgam should be sought for patients with impaired salivary flow.

  3. Dental prostheses mimic the natural enamel behavior under functional loading: A review article

    OpenAIRE

    Madfa, Ahmed A.; Yue, Xiao-Guang

    2015-01-01

    Summary Alumina- and zirconia-based ceramic dental restorations are designed to repair functionality as well as esthetics of the failed teeth. However, these materials exhibited several performance deficiencies such as fracture, poor esthetic properties of ceramic cores (particularly zirconia cores), and difficulty in accomplishing a strong ceramic?resin-based cement bond. Therefore, improving the mechanical properties of these ceramic materials is of great interest in a wide range of discipl...

  4. Salivary Alpha Amylase and Cortisol Levels in Children with Global Developmental Delay and Their Relation with the Expectation of Dental Care and Behavior during the Intervention

    Science.gov (United States)

    dos Santos, Marcio Jose Possari; Bernabe, Daniel Galera; Nakamune, Ana Claudia de Melo Stevanato; Perri, Silvia Helena Venturoli; de Aguiar, Sandra Maria Herondina Coelho Avila; de Oliveira, Sandra Helena Penha

    2012-01-01

    The purpose of this study was to analyze the alpha-amylase (sAA) and cortisol levels in children with Global developmental delay (GDD) before and after dental treatment and its association with the children's behavior during treatment. The morning salivary cortisol levels and activity of sAA of 33 children with GDD were evaluated before and after…

  5. Salivary Alpha Amylase and Cortisol Levels in Children with Global Developmental Delay and Their Relation with the Expectation of Dental Care and Behavior during the Intervention

    Science.gov (United States)

    dos Santos, Marcio Jose Possari; Bernabe, Daniel Galera; Nakamune, Ana Claudia de Melo Stevanato; Perri, Silvia Helena Venturoli; de Aguiar, Sandra Maria Herondina Coelho Avila; de Oliveira, Sandra Helena Penha

    2012-01-01

    The purpose of this study was to analyze the alpha-amylase (sAA) and cortisol levels in children with Global developmental delay (GDD) before and after dental treatment and its association with the children's behavior during treatment. The morning salivary cortisol levels and activity of sAA of 33 children with GDD were evaluated before and after…

  6. Effectiveness of Hypnosis in Combination with Conventional Techniques of Behavior Management in Anxiety/Pain Reduction during Dental Anesthetic Infiltration

    Science.gov (United States)

    Ramírez-Carrasco, A.; Butrón-Téllez Girón, C.; Sanchez-Armass, O.

    2017-01-01

    Background and Objective. Anxiety/pain are experiences that make dental treatment difficult for children, especially during the time of anesthesia. Hypnosis is used in pediatric clinical situations to modify thinking, behavior, and perception as well as, recently, in dentistry; therefore the aim of this study was to evaluate the effectiveness of hypnosis combined with conventional behavior management techniques during infiltration anesthetic. Methods. Anxiety/pain were assessed with the FLACC scale during the anesthetic moment, as well as heart rate variability and skin conductance before and during the anesthetic moment, between the control and experimental group. Results. A marginal statistical difference (p = 0.05) was found in the heart rate between baseline and anesthetic moment, being lower in the hypnosis group. No statistically significant differences were found with the FLACC scale or in the skin conductance (p > 0.05). Conclusion. Hypnosis combined with conventional behavior management techniques decreases heart rate during anesthetic infiltration showing that there may be an improvement in anxiety/pain control through hypnotic therapy. PMID:28490941

  7. Effectiveness of Hypnosis in Combination with Conventional Techniques of Behavior Management in Anxiety/Pain Reduction during Dental Anesthetic Infiltration

    Directory of Open Access Journals (Sweden)

    A. Ramírez-Carrasco

    2017-01-01

    Full Text Available Background and Objective. Anxiety/pain are experiences that make dental treatment difficult for children, especially during the time of anesthesia. Hypnosis is used in pediatric clinical situations to modify thinking, behavior, and perception as well as, recently, in dentistry; therefore the aim of this study was to evaluate the effectiveness of hypnosis combined with conventional behavior management techniques during infiltration anesthetic. Methods. Anxiety/pain were assessed with the FLACC scale during the anesthetic moment, as well as heart rate variability and skin conductance before and during the anesthetic moment, between the control and experimental group. Results. A marginal statistical difference (p=0.05 was found in the heart rate between baseline and anesthetic moment, being lower in the hypnosis group. No statistically significant differences were found with the FLACC scale or in the skin conductance (p>0.05. Conclusion. Hypnosis combined with conventional behavior management techniques decreases heart rate during anesthetic infiltration showing that there may be an improvement in anxiety/pain control through hypnotic therapy.

  8. Electrochemical behavior of 45S5 bioactive ceramic coating on Ti6Al4V alloy for dental applications

    Science.gov (United States)

    Machado López, M. M.; Espitia Cabrera, M. I.; Faure, J.; Contreras García, M. E.

    2016-04-01

    Titanium and its alloys are widely used as implant materials because of their mechanical properties and non-toxic behavior. Unfortunately, they are not bioinert, which means that they can release ions and can only fix the bone by mechanical anchorage, this can lead to the encapsulation of dense fibrous tissue in the body. The bone fixation is required in clinical conditions treated by orthopedic and dental medicine. The proposal is to coat metallic implants with bioactive materials to establish good interfacial bonds between the metal substrate and bone by increasing bioactivity. Bioactive glasses, ceramics specifically 45 S5 Bioglass, have drawn attention as a serious functional biomaterial because osseointegration capacity. The EPD method of bioglass gel precursor was proposed in the present work as a new method to obtain 45S5/Ti6A14V for dental applications. The coatings, were thermally treated at 700 and 800°C and presented the 45 S5 bioglass characteristic phases showing morphology and uniformity with no defects, quantification percentages by EDS of Si, Ca, Na, P and O elements in the coating scratched powders, showed a good proportional relationship demonstrating the obtention of the 45S5 bioglass. The corrosion tests were carried out in Hank's solution. By Tafel extrapolation, Ti6Al4V alloy showed good corrosion resistance in Hank's solution media, by the formation of a passivation layer on the metal surface, however, in the system 45S5/Ti6Al4V there was an increase in the corrosion resistance; icon-, Ecorr and corrosion rate decreased, the mass loss and the rate of release of ions, were lower in this system than in the titanium alloy without coating.

  9. Dental health awareness, attitude, oral health-related habits, and behaviors in relation to socio-economic factors among the municipal employees of Mysore city

    Directory of Open Access Journals (Sweden)

    B R Chandra Shekar

    2011-01-01

    Full Text Available Objective: To assess the dental health awareness, attitude, oral health-related habits, and behaviors in relation to socioeconomic factors among the municipal employees of Mysore city. Study Design and Methodology: This study was cross-sectional in nature and involved completion of a predesigned structured questionnaire. The questionnaire included multiple option questions to collect information on awareness on dental diseases, visit to dentist, reasons for visit, reasons for not visiting dentist on routine basis, oral hygiene practices, and deleterious oral habits. Modified Kuppuswamy scale with readjustment of per capita income was used to classify individuals into different socioeconomic status (SES categories. Data were entered onto a personal computer and analysis was done using SPSS version 14. Results: Awareness on dental diseases was 100% in upper SES and nil (0% in the lower SES. Visit to dentist in the last 1 year was 100% in the upper SES and 32.3% in the lower SES. The prevalence of smoking, pan-chewing, and alcohol consumption was high in lower SES than in upper SES. Oral hygiene practices were better among the subjects in upper class than the lower ones. Conclusion: A direct relation was noted between the favorable dental health awareness, attitude, oral hygiene behavior, and SES.

  10. Magnesium-containing mixed coatings on zirconia for dental implants: mechanical characterization and in vitro behavior.

    Science.gov (United States)

    Pardun, Karoline; Treccani, Laura; Volkmann, Eike; Streckbein, Philipp; Heiss, Christian; Gerlach, Juergen W; Maendl, Stephan; Rezwan, Kurosch

    2015-07-01

    An important challenge in the field of dental and orthopedic implantology is the preparation of implant coatings with bioactive functions that feature a high mechanical stability and at the same time mimic structural and compositional properties of native bone for a better bone ingrowth. This study investigates the influence of magnesium addition to zirconia-calcium phosphate coatings. The mixed coatings were prepared with varying additions of either magnesium oxide or magnesium fluoride to yttria-stabilized zirconia and hydroxyapatite. The coatings were deposited on zirconia discs and screw implants by wet powder spraying. Microstructure studies confirm a porous coating with similar roughness and firm adhesion not hampered by the coating composition. The coating morphology, mechanical flexural strength and calcium dissolution showed a magnesium content-dependent effect. Moreover, the in vitro results obtained with human osteoblasts reveal an improved biological performance caused by the presence of Mg(2+) ions. The magnesium-containing coatings exhibited better cell proliferation and differentiation in comparison to pure zirconia-calcium phosphate coatings. In conclusion, these results demonstrate that magnesium addition increases the bioactivity potential of zirconia-calcium phosphate coatings and is thus a highly suitable candidate for bone implant coatings.

  11. Fibromyalgia symptom reduction by online behavioral self-monitoring, longitudinal single subject analysis and automated delivery of individualized guidance

    Directory of Open Access Journals (Sweden)

    William Collinge

    2013-01-01

    Full Text Available Background: Fibromyalgia (FM is a complex chronic pain condition that is difficult to treat. The prevailing approach is an integration of pharmacological, psycho-educational, and behavioral strategies. Information technology offers great potential for FM sufferers to systemically monitor symptoms as well as potential impacts of various management strategies. Aims: This study aimed to evaluate effects of a web-based, self-monitoring and symptom management system (SMARTLog that analyzes personal self-monitoring data and delivers data-based feedback over time. Materials and Methods: Subjects were self-referred, anonymous, and recruited via publicity on FM advocacy websites. Standardized instruments assessed health status, self-efficacy, and locus of control at baseline and monthly during participation. Subjects were encouraged to complete the SMARTLog several times weekly. Within-subject, univariate, and multivariate analyses were used to derive classification trees for each user associating specific behavior variables with symptom levels over time. Results: Moderate use (3 times weekly x 3 months increased likelihood of clinically significant improvements in pain, memory, gastrointestinal problems, depression, fatigue, and concentration; heavy use (4.5 times weekly x five months produced the above plus improvement in stiffness and sleep difficulties. Conclusions: Individualized, web-based behavioral self-monitoring with personally-tailored feedback can enable FM sufferers to significantly reduce symptom levels over time.

  12. Histologic and histomorphometric behavior of microgrooved zirconia dental implants with immediate loading.

    Science.gov (United States)

    Delgado-Ruiz, Rafael Arcesio; Calvo-Guirado, Jose Luis; Abboud, Marcus; Ramirez-Fernandez, Maria Piedad; Maté-Sánchez de Val, José Eduardo; Mate-Sanchez, Jose Eduardo; Negri, Bruno; Rothamel, Daniel

    2014-12-01

    The study aims to assess the total soft tissue (ST) width, crestal bone level (CBL), bone-to-implant contact (BIC), and bone density (BD) for zirconia implants textured with microgrooved surfaces and immediately loaded. This study included 51 implants; one implant from each study group was retained for surface characterization. The 48 remaining implants were inserted randomly in premolar areas of both sides of the healed edentulous lower jaws of foxhound dogs. They were divided into three groups of 16: control (titanium); test A (zirconia), and test B (microgrooved zirconia). The implants were splinted and covered with an acrylic bridge. A split-mouth design was used and immediate occlusal loading was applied on one side, while the other side did not have occlusal contact. ST, CBL, BIC, and BD were evaluated after 3 months. The effects of immediate loading on these parameters were analyzed. All the implants were osseointegrated. ST was established at 3 months with mean values of 2.9 ± 0.4 mm for all groups. No differences were appreciated between loaded and unloaded sides regarding ST (p > .05). CBL showed a mean of 1.2 ± 0.3 mm for all groups without differences between loaded and unloaded sides (p > .05). BIC percentages were significantly higher for loaded all-microgrooved implants (p implants (p implants than unloaded. Within the limitations of the present study, it may be concluded that for zirconia dental implants with microgrooved surfaces and immediate loading, the thickness of STs remains stable resulting in 3 mm mean biologic width, that crestal bone preservation is related to insertion depth, and that higher BIC percentages and increased BD around implants microgrooved over the entire intraosseous area may be expected at 3 months following implant insertion and immediate loading. © 2013 Wiley Periodicals, Inc.

  13. Contraction behaviors of dental composite restorations--finite element investigation with DIC validation.

    Science.gov (United States)

    Chuang, Shu-Fen; Chang, Chih-Han; Chen, Terry Yuan-Fang

    2011-11-01

    The objective of this study was to examine the effects of cavity configuration on the polymerization shrinkage and stress of light-cured composite restorations by combining local strain measurement and a finite element analysis (FEA). Dental mesio-occluso-distal cavities of various widths and depths (each for 2 vs. 4 mm), representing different configuration factors, were prepared on extracted molars. The displacements of the bonded tooth cusps and cavity floors, caused by polymerization shrinkage of composite restorations, were assessed utilizing a digital-image-correlation (DIC) technique. The cervical marginal microleakage was investigated by examining the resin replicas of these restorations under SEM. The local material properties of the polymerized composite along the curing depth were defined by the nanoindentation test and applied in the subsequent FEA. In the FEA, four models were generated to correspond with the experimental restorations. In the DIC measurement results, the 4(w)×4(D) mm cavity presented the greatest values of inward displacements at the cusp and floor. The cavity depth, rather than the cavity width, was found to significantly correlate to the floor deformation, the location of shrinkage centers, and also the cervical microleakage ratio. The FEA simulation results showed that the 2(w)×4(D) mm cavity presented the maximal von Mises and principal stress located respectively on the cervical margins and cavity floor. Additional safety factor analysis showed a high risk of bond failure over the cavity floor in the 4-mm deep cavity. With the experimental validation, the simulation revealed that the cavity depth was significant to the formation of contraction stress and the incidence of interfacial debonding.

  14. Fatigue behavior of dental resin composites: flexural fatigue in vitro versus 6 years in vivo

    NARCIS (Netherlands)

    Garcia-Godoy, F.; Frankenberger, R.; Lohbauer, U.; Feilzer, A.J.; Krämer, N.

    2012-01-01

    Objectives: To evaluate fatigue behavior of direct resin composite restorations (Tetric Ceram vs. Grandio) in vitro and in vivo over an observation period of 6 years. Methods: For the in vitro part, Young's moduli (YM) were calculated and both initial (FS: flexural strength) and fatigue flexural

  15. Fatigue behavior of dental resin composites: flexural fatigue in vitro versus 6 years in vivo

    NARCIS (Netherlands)

    F. Garcia-Godoy; R. Frankenberger; U. Lohbauer; A.J. Feilzer; N. Krämer

    2012-01-01

    Objectives: To evaluate fatigue behavior of direct resin composite restorations (Tetric Ceram vs. Grandio) in vitro and in vivo over an observation period of 6 years. Methods: For the in vitro part, Young's moduli (YM) were calculated and both initial (FS: flexural strength) and fatigue flexural str

  16. Data-Analytics Based Coaching Towards Behavior Change for Dental Hygiene

    NARCIS (Netherlands)

    Ruyter, B.E.R. de

    2015-01-01

    Within the vision of Ambient Intelligence it is assumed that future electronic systems will be embedded into our lives and have different levels of intelligence. One class of systems that has reached such levels of embedding and intelligence are coaching systems for behavioral change. In this paper

  17. Modulation of human dermal microvascular endothelial cell and human gingival fibroblast behavior by micropatterned silica coating surfaces for zirconia dental implant applications

    Science.gov (United States)

    Laranjeira, Marta S; Carvalho, Ângela; Pelaez-Vargas, Alejandro; Hansford, Derek; Ferraz, Maria Pia; Coimbra, Susana; Costa, Elísio; Santos-Silva, Alice; Fernandes, Maria Helena; Monteiro, Fernando Jorge

    2014-01-01

    Dental ceramic implants have shown superior esthetic behavior and the absence of induced allergic disorders when compared to titanium implants. Zirconia may become a potential candidate to be used as an alternative to titanium dental implants if surface modifications are introduced. In this work, bioactive micropatterned silica coatings were produced on zirconia substrates, using a combined methodology of sol–gel processing and soft lithography. The aim of the work was to compare the in vitro behavior of human gingival fibroblasts (HGFs) and human dermal microvascular endothelial cells (HDMECs) on three types of silica-coated zirconia surfaces: flat and micropatterned (with pillars and with parallel grooves). Our results showed that cells had a higher metabolic activity (HGF, HDMEC) and increased gene expression levels of fibroblast-specific protein-1 (FSP-1) and collagen type I (COL I) on surfaces with pillars. Nevertheless, parallel grooved surfaces were able to guide cell growth. Even capillary tube-like networks of HDMEC were oriented according to the surface geometry. Zirconia and silica with different topographies have shown to be blood compatible and silica coating reduced bacteria adhesion. All together, the results indicated that microstructured bioactive coating seems to be an efficient strategy to improve soft tissue integration on zirconia implants, protecting implants from peri-implant inflammation and improving long-term implant stabilization. This new approach of micropatterned silica coating on zirconia substrates can generate promising novel dental implants, with surfaces that provide physical cues to guide cells and enhance their behavior. PMID:27877662

  18. Modulation of human dermal microvascular endothelial cell and human gingival fibroblast behavior by micropatterned silica coating surfaces for zirconia dental implant applications

    Directory of Open Access Journals (Sweden)

    Marta S Laranjeira

    2014-03-01

    Full Text Available Dental ceramic implants have shown superior esthetic behavior and the absence of induced allergic disorders when compared to titanium implants. Zirconia may become a potential candidate to be used as an alternative to titanium dental implants if surface modifications are introduced. In this work, bioactive micropatterned silica coatings were produced on zirconia substrates, using a combined methodology of sol–gel processing and soft lithography. The aim of the work was to compare the in vitro behavior of human gingival fibroblasts (HGFs and human dermal microvascular endothelial cells (HDMECs on three types of silica-coated zirconia surfaces: flat and micropatterned (with pillars and with parallel grooves. Our results showed that cells had a higher metabolic activity (HGF, HDMEC and increased gene expression levels of fibroblast-specific protein-1 (FSP-1 and collagen type I (COL I on surfaces with pillars. Nevertheless, parallel grooved surfaces were able to guide cell growth. Even capillary tube-like networks of HDMEC were oriented according to the surface geometry. Zirconia and silica with different topographies have shown to be blood compatible and silica coating reduced bacteria adhesion. All together, the results indicated that microstructured bioactive coating seems to be an efficient strategy to improve soft tissue integration on zirconia implants, protecting implants from peri-implant inflammation and improving long-term implant stabilization. This new approach of micropatterned silica coating on zirconia substrates can generate promising novel dental implants, with surfaces that provide physical cues to guide cells and enhance their behavior.

  19. Modulation of human dermal microvascular endothelial cell and human gingival fibroblast behavior by micropatterned silica coating surfaces for zirconia dental implant applications

    Science.gov (United States)

    Laranjeira, Marta S.; Carvalho, Ângela; Pelaez-Vargas, Alejandro; Hansford, Derek; Ferraz, Maria Pia; Coimbra, Susana; Costa, Elísio; Santos-Silva, Alice; Fernandes, Maria Helena; Monteiro, Fernando Jorge

    2014-04-01

    Dental ceramic implants have shown superior esthetic behavior and the absence of induced allergic disorders when compared to titanium implants. Zirconia may become a potential candidate to be used as an alternative to titanium dental implants if surface modifications are introduced. In this work, bioactive micropatterned silica coatings were produced on zirconia substrates, using a combined methodology of sol-gel processing and soft lithography. The aim of the work was to compare the in vitro behavior of human gingival fibroblasts (HGFs) and human dermal microvascular endothelial cells (HDMECs) on three types of silica-coated zirconia surfaces: flat and micropatterned (with pillars and with parallel grooves). Our results showed that cells had a higher metabolic activity (HGF, HDMEC) and increased gene expression levels of fibroblast-specific protein-1 (FSP-1) and collagen type I (COL I) on surfaces with pillars. Nevertheless, parallel grooved surfaces were able to guide cell growth. Even capillary tube-like networks of HDMEC were oriented according to the surface geometry. Zirconia and silica with different topographies have shown to be blood compatible and silica coating reduced bacteria adhesion. All together, the results indicated that microstructured bioactive coating seems to be an efficient strategy to improve soft tissue integration on zirconia implants, protecting implants from peri-implant inflammation and improving long-term implant stabilization. This new approach of micropatterned silica coating on zirconia substrates can generate promising novel dental implants, with surfaces that provide physical cues to guide cells and enhance their behavior.

  20. Clarifying the effect of behavioral and clinical factors on traumatic dental injuries in childhood: a hierarchical approach.

    Science.gov (United States)

    Kramer, Paulo Floriani; Feldens, Eliane Gerson; Bruch, Cristina Montini; Ferreira, Simone Helena; Feldens, Carlos Alberto

    2015-06-01

    To explore associations between traumatic dental injuries (TDI) in Brazilian preschool children and clinical, behavioral, and socio-demographic factors using a hierarchical approach. A cross-sectional study was conducted involving 1316 children aged 0-5 years at public preschools in the city of Canoas (southern Brazil). Demographic (sex and age), socioeconomic (mother's schooling, income and family structure) and behavioral (use of pacifier, breastfeeding duration and bottle use at 12 months) factors were collected through a questionnaire. TDI (Andreasen criteria) and malocclusion (overjet and anterior open bite) were recorded by trained and calibrated examiners. Poisson regression was employed to determine factors associated with TDI using a hierarchical approach. The prevalence of TDI was 13.3%. In the final model, the probability of TDI was 50% higher in children who used a pacifier (PR: 1.50; 95% CI: 1.08-2.10), 77% higher in children with overjet between 3 and 5 mm (PR: 1.77; 95% CI: 1.22-2.57) and nearly threefold higher in children with overjet > 5 mm (PR: 2.73; 95% CI: 1.77-4.20) compared with children with overjet ≤ 2 mm. Additional analysis demonstrated that overjet represented the pathway by which pacifier use was associated with TDI. Pacifier use is strongly associated with the occurrence of TDI in the primary dentition, and accentuated overjet represents a pathway to this association. These findings suggest the need for prevention strategies that address early counseling on pacifier use to reduce the occurrence of TDI. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  1. [Influence of cryogenic treatment and age-hardening heat treatment on the corrosion behavior of a dental casting Ag-Pd alloy].

    Science.gov (United States)

    Zhao, Yao; Wu, Bin; Meng, Yukun

    2014-06-01

    The purpose of this study is to investigate the influence of cryogenic treatment and age-hardening heat treatment on the corrosion behavior of a dental casting Ag-Pd alloy. A low gold content dental casting alloy composed of Ag-Pd-Cu-Au was prepared for this study. Corrosion test was performed according to ISO 10271:2001 dental metallie-corrosion test methods. Experimental specimens were casted according to a standard dental lost-wax casting procedure, treated with solution by heating the specimens to 900 degrees C, and immediately quenched in ice water. The specimens were then divided into four groups and subjected to heat treatment, cryogenic treatment, and heat treatment combined with cryogenic treatment. The specimens after the solution treatment were taken as control. The metallographic structures of the specimens were observed. The electrochemical parameters and the quantity of non-precious metallic ions released were evaluated via electrochemical and static immersion tests. Metallographic observation revealed that all the treatments resulted in a change in the microstructure of the alloy. The treatments were effective in improving the electrochemical parameters, such as an increase in Eocp and Ecorr and a decrease in Icorr (P 0.05). After different treatments, the antierosion properties of the alloy satisfied the ISO requirements. Age-hardening heat treatment and cryogenic treatment improved the corrosion resistance of the alloy.

  2. Analysis on dental uncooperative behaviors of the first-visit children in clinic%初诊儿童牙科不合作行为分析

    Institute of Scientific and Technical Information of China (English)

    阳婵; 邹红梅; 邹静

    2011-01-01

    目的 探讨初次到牙科就诊的儿童其不合作行为与儿童气质、龋病严重程度等因素的相关性,以期制定个性化的牙科治疗方案,预防和应对初诊儿童的牙科不合作行为.方法 从2007年12月-2008年12月初次到儿童口腔科就诊的儿童中随机抽取195名3~7岁儿童为研究对象,对儿童进行口腔检查和实施相应的治疗措施,并对治疗过程中儿童的牙科行为进行评估分级.家长填写《NYLS 3~7岁儿童气质家长评定问卷》.结果 195名儿童中,牙科恐惧及焦虑(DFA)儿童114名(58.46%),牙科行为管理问题(DBMP)儿童66名(33.85%);随着年龄的增加,儿童DBMP逐渐下降;性别与儿童DFA/DBMP无关;龋病越严重的儿童越易发生DFA/DBMP.不同气质类型儿童的DFA/DBMP差异无统计学意义,但气质维度中,DFA儿童的反应阈高于非DFA儿童,DBMP儿童的节律性低于非DBMP儿童.结论 应将患龋严重的儿童作为重点人群,根据不同年龄、不同气质特点采取不同行为管理方法,降低初诊儿童DFA/DBMP的发生.%Objective To investigate the relationship between the uncooperative behaviors of first-visit-dental children and correlative factors that include children's temperament, severe of dental caries and so on in order to help dentists to make personal dentistry therapy plan for each child to prevent and deal with children's uncooperative behaviors. Methods From the pediatric dentistry clinic, 195 first-visit-dental children (aged 3-7 years) from Dec. 2007 to Dec. 2008 were randomly selected to accept dental examination and accepted corresponding treatment according to personal therapy plans. Children's clinic behavior was valued during treatment. The parents were asked to complete NYLS temperament parents scale questionnaires for 3-7 years old children. Results Among the 195 children, there were 114(58.46%) had dental fear and anxiety (DFA) and 66(33.85%) had dental behavior management problem (DBMP). As the

  3. Dental Emergencies

    OpenAIRE

    Domb, Ivor

    1982-01-01

    Emergency dental problems can result from trauma, dental pathology, or from dental treatment itself. While the physician can treat many instances of dental trauma, the patient should see a dentist as soon as possible so that teeth can be saved. Emergency treatment of dental pathology usually involves relief of pain and/or swelling. Bleeding is the most frequent post-treatment emergency. The physician should be able to make the patient comfortable until definitive dental treatment can be avail...

  4. Biocompatibility of dental alloys

    Energy Technology Data Exchange (ETDEWEB)

    Braemer, W. [Heraeus Kulzer GmbH and Co. KG, Hanau (Germany)

    2001-10-01

    Modern dental alloys have been used for 50 years to produce prosthetic dental restorations. Generally, the crowns and frames of a prosthesis are prepared in dental alloys, and then veneered by feldspar ceramics or composites. In use, the alloys are exposed to the corrosive influence of saliva and bacteria. Metallic dental materials can be classified as precious and non-precious alloys. Precious alloys consist of gold, platinum, and small amounts of non-precious components such as copper, tin, or zinc. The non-precious alloys are based on either nickel or cobalt, alloyed with chrome, molybdenum, manganese, etc. Titanium is used as Grade 2 quality for dental purposes. As well as the dental casting alloys, high purity electroplated gold (99.8 wt.-%) is used in dental technology. This review discusses the corrosion behavior of metallic dental materials with saliva in ''in vitro'' tests and the influence of alloy components on bacteria (Lactobacillus casei and Streptococcus mutans). The test results show that alloys with high gold content, cobalt-based alloys, titanium, and electroplated gold are suitable for use as dental materials. (orig.)

  5. Dental Procedures.

    Science.gov (United States)

    Ramponi, Denise R

    2016-01-01

    Dental problems are a common complaint in emergency departments in the United States. There are a wide variety of dental issues addressed in emergency department visits such as dental caries, loose teeth, dental trauma, gingival infections, and dry socket syndrome. Review of the most common dental blocks and dental procedures will allow the practitioner the opportunity to make the patient more comfortable and reduce the amount of analgesia the patient will need upon discharge. Familiarity with the dental equipment, tooth, and mouth anatomy will help prepare the practitioner for to perform these dental procedures.

  6. Dietary nutrition and behavior guidance in various stages of pregnancy%孕期不同阶段的膳食营养与行为指导

    Institute of Scientific and Technical Information of China (English)

    赵端阳; 焦文志

    2015-01-01

    Reasonable nutrition and dietary adjustment could meet the variety of nutrients needs of pregnant women and fetus and reduce the adverse pregnancy outcomes caused by nutrient imbalance,and good way of life was more beneficial to the healthy growth of the fetus.In this paper,we discussed the dietary nutrition in various stages of pregnancy,and gave behavior guidance for the lifestyle of pregnancy.%合理的营养和膳食调节能够满足孕妇和胎儿对多种营养素的需求,减少因营养不均衡所致的妊娠不良结果,良好的生活方式更有益于胎儿健康成长。本文围绕孕妇妊娠不同阶段的膳食营养展开探讨,并对孕妇的生活方式进行行为指导。

  7. Effect of Intranasal Sedation Using Ketamine and Midazolam on Behavior of 3-6 Year-Old Uncooperative Children in Dental Office: A Clinical Trial

    Directory of Open Access Journals (Sweden)

    Majid Mehran

    2017-02-01

    Full Text Available Objectives: The aim of the present study was to compare the effects of intranasal ketamine and midazolam on behavior of 3-6 year-old children during dental treatments.  Materials and Methods: In this randomized cross-over clinical trial, 17 uncooperative children requiring at least two dental treatments were selected and randomly received ketamine (0.5mg/kg or midazolam (0.2mg/kg prior to treatment. The other medication was used in the next visit. The children’s behavioral pattern was determined according to the Houpt's scale regarding sleep, movement, crying and overall behavior. Physiological parameters were also measured at different time intervals. The data were subjected to Wilcoxon Signed Rank test and two-way repeated measures ANOVA.Results: The frequency of crying decreased significantly following ketamine administration compared to midazolam (P=0.002; movement of children decreased with fewer incidence of treatment interruption (P=0.001 while their sleepiness increased (P=0.003. Despite higher success of sedation with ketamine compared to midazolam, no significant differences were found between the two regarding patients’ overall behavior (P>0.05. The patients had higher heart rate and blood pressure with ketamine; however, no significant difference was found regarding respiratory rate and oxygen saturation (P>0.05.  Conclusions: Ketamine (0.5mg/kg led to fewer movements, less crying and more sleepiness compared to midazolam (0.2mg/kg. No significant differences were found between the two drugs regarding children’s overall behavior and sedation efficiency. Both drugs demonstrated positive efficacy for sedation of children during dental treatments.Keywords: Conscious Sedation; Ketamine; Midazolam; Administration, Intranasal

  8. Dental, Dental Hygiene, and Graduate Students' and Faculty Perspectives on Dental Hygienists' Professional Role and the Potential Contribution of a Peer Teaching Program.

    Science.gov (United States)

    McComas, Martha J; Inglehart, Marita R

    2016-09-01

    The changing role of dental hygienists deserves dental and dental hygiene educators' attention. The first aim of this survey study was to assess University of Michigan dental, dental hygiene, and graduate students' and faculty members' perceptions of dental hygienists' roles; their attitudes and behaviors related to clinical interactions between dental and dental hygiene students; and perceived benefits of engaging dental hygiene students as peer teachers for dental students. The second aim was to assess whether one group of dental students' experiences with dental hygiene student peer teaching affected their perceptions of the dental hygiene profession. Survey respondents were 57 dental hygiene students in all three years of the program (response rate 60% to 100%); 476 dental students in all four years (response rate 56% to 100%); 28 dental and dental hygiene graduate students (response rate 28%); and 67 dental and dental hygiene faculty members (response rate 56%). Compared to the other groups, dental students reported the lowest average number of services dental hygienists can provide (p≤0.001) and the lowest average number of patient groups for which dental hygienists can provide periodontal care (phygiene and dental students (phygiene student peer teaching (phygiene student peer teaching, the dental students' perceptions of dental hygienists' roles, attitudes about clinical interactions with dental hygienists, and perceived benefits of dental hygiene student peer teachers improved and were more positive than the responses of their peers with no peer teaching experiences. These results suggest that dental hygiene student peer teaching may improve dental students' perceptions of dental hygienists' roles and attitudes about intraprofessional care.

  9. Uniaxial compressive behavior of micro-pillars of dental enamel characterized in multiple directions.

    Science.gov (United States)

    Yilmaz, Ezgi D; Jelitto, Hans; Schneider, Gerold A

    2015-04-01

    In this work, the compressive elastic modulus and failure strength values of bovine enamel at the first hierarchical level formed by hydroxyapatite (HA) nanofibers and organic matter are identified in longitudinal, transverse and oblique direction with the uniaxial micro-compression method. The elastic modulus values (∼70 GPa) measured here are within the range of results reported in the literature but these values were found surprisingly uniform in all orientations as opposed to the previous nanoindentation findings revealing anisotropic elastic properties in enamel. Failure strengths were recorded up to ∼1.7 GPa and different failure modes (such as shear, microbuckling, fiber fracture) governed by the orientation of the HA nanofibers were visualized. Structural irregularities leading to mineral contacts between the nanofibers are postulated as the main reason for the high compressive strength and direction-independent elastic behavior on enamels first hierarchical level. Copyright © 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

  10. The Effect of Parental Presence on the 5 year-Old Childrens Anxiety and Cooperative Behavior in the First and Second Dental Visit

    Directory of Open Access Journals (Sweden)

    Mehrsa Paryab

    2011-06-01

    Full Text Available Objective:One of the most significant problems in pediatric dentistry is behavioral resistance of preschool children in the first visit. There is a debate on parental presence in operation room. The purpose of this study was to evaluate the Iranian 5-year-old childrens behavior including anxiety and cooperation relative to parental presence in the first and second dental appointments. Methods:The study was conducted on sixty seven 5-year-old children selected according to inclusion criteria and randomly divided into two subgroups. Children in group I were visited in parents presence and in group II in parents absence. Before the childs first dental visit, parents were interviewed. Forty eight of the children receiving the initial examination were recalled for a second visit. The childrens responses during the Holst procedure of the first visit and restorative second visit were assessed using a combination of two measures including heart rate and clinical behavior. The dentist-patient interactions were regulated by standardized scripts and recorded on videotape. Then, the behavior of the child on the recording during each visit was quantified by two pediatric dentists independently according to Venham 6-point rating scale and Frankle 4-point rating scale. Findings:There were no significant differences between the heart rate measures of children in group I and II in the first and second visit (0.67, 0.8 respectively. There were also no significant differences between the clinical anxiety scores of children in the two groups in the first and second visit (0.98, 0.42 respectively. Moreover, there were no significant differences between the clinical cooperation scores of children in group I and group II in the first and second visit (0.88, 0.40 respectively, neither were there any significant differences between response measures of each child between two visits (P>0.05. In addition, there were no significant differences related to sex, parental

  11. Dental caries in relation to socio-behavioral factors of 6-year-old school children of Udaipur district, India

    Directory of Open Access Journals (Sweden)

    Santhosh Kumar Tadakamadla

    2012-01-01

    Conclusions: Rural children and boys experienced greater caries than their urban and girl counterparts. Caries experience was related to the parent′s occupation and education. Moreover, caries occurrence was influenced by brushing frequency and dental visiting habits.

  12. Towards the synthesis of an experimental bioactive dental ceramic. Part I: Crystallinity characterization and bioactive behavior evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Goudouri, O.-M. [Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece); Kontonasaki, E. [School of Dentistry, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece); Papadopoulou, L.; Kantiranis, N. [Department of Geology, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece); Lazaridis, N.K. [Chemistry Department, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece); Chrissafis, K.; Chatzistavrou, X. [Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece); Koidis, P. [School of Dentistry, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece); Paraskevopoulos, K.M., E-mail: kpar@auth.gr [Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece)

    2014-05-01

    An attachment between the dental ceramic and the surrounding marginal tissues in fixed prosthetic restorations could eliminate secondary carries prevalence. The development of dental ceramics with apatite forming ability could provide the biological surface required for selective spread and attachment of specific cell types able to promote tissue attachment. Dental ceramics/bioactive glass composites synthesized by the sol gel method have been previously reported to develop carbonated hydroxyapatite (HCAp) in biomimetic solutions, requiring though a high amount of bioactive glass, which resulted in the compromise of their mechanical integrity. Thus, the aim of the present work was the synthesis and characterization of an experimental sol–gel derived dental ceramic with low amount of bioactive glass and the evaluation of its in vitro bioactivity. Differential thermal and thermogravimetric analysis (TG–DTA), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffractometry (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) were used to evaluate the crystal structure and the in vitro apatite forming ability of the synthesized material. The results of this study indicated the successful sol–gel synthesis of an experimental dental ceramic containing low amount of bioactive glass that presented similar structural and morphological characteristics with a commercial feldspathic dental ceramic, while exhibiting in vitro bioactivity. The apatite forming ability of the experimental sol–gel derived feldspathic dental ceramic may trigger the appropriate cellular mechanisms towards the establishment of attachment with the surrounding connective tissue. This attachment could provide a barrier to oral bacteria penetration, prolonging the life expectation of the restorations. - Highlights: • Synthesis of a bioactive sol–gel dental ceramic for fixed prosthetic restorations. • The sol–gel technique promoted the crystallization of

  13. Comparison of Behavior and Dental Anxiety During Intranasal and Sublingual Midazolam Sedation - A Randomized Controlled Trial.

    Science.gov (United States)

    Shanmugaavel, A K; Asokan, Sharath; Baby, John J; Priya, Geetha; Gnana Devi, J

    2016-01-01

    The objective of the study was to assess the behavioral effects and the changes in the anxiety level of children after intranasal and sublingual midazolam sedation using Venham's clinical anxiety scale and salivary cortisol level. Twenty children aged 3 to 7 years were randomly assigned to Group A (n=10) intranasal or Group B (n=10) sublingual midazolam (0.2mg/kg) sedation. The anxiety levels at various time periods were assessed using Venham clinical anxiety scale and corresponding changes in salivary cortisol levels were assessed before and after the drug administration. The anxiety levels were assessed independently by two pediatric dentists from recorded videos. Wilcoxon signed rank test and Mann Whitney U test were used for statistical analysis using SPSS version 19.0. There was a significant decrease in anxiety level from baseline to 20 minutes after drug administration in group A (p=0.004) and group B (p=0.003). There was no significant change in salivary cortisol levels before and after the drug administration in group A (p=0.07) and group B (p=0.38). Both intranasal and sublingual administration of midazolam was equally effective in reducing the child's anxiety. However, there was no significant difference in the salivary cortisol levels in both groups.

  14. Dental Caries Status, Socio-Economic, Behavioral and Biological Variables among 12-Year-Old Palestinian School Children.

    Science.gov (United States)

    Sgan-Cohen, H D; Bajali, M; Eskander, L; Steinberg, D; Zini, A

    2015-01-01

    There are currently inadequate data regarding the prevalence of dental caries and its associated variables, among Palestinian children. To determine the current prevalence of dental caries and related variables, among Palestinian children in East Jerusalem. A stratified sample of 286 East Jerusalem Palestinian children was selected, employing randomly chosen sixth grade clusters from three pre-selected socio-economic school groups. Dental caries was recorded according to WHO recommendations. Salivary flow, pH, buffer capacity and microbial parameters, were recorded according to previously employed methodologies. The mean level of caries experience, by DMFT, was 1.98 ± 2.05. This level was higher than those found among Israeli children, but lower than several other Middle Eastern countries. In uni-variate analysis, significant associations were revealed between caries and school categories, which indicated lower, middle and higher socio-economic position(SEP), mothers' employment, home densities, dental visits, tooth brushing, Streptococci mutans (SM), Lactobacilli (LB), and saliva pH. According to a linear logistic regression model, children learning in lower SEP schools, with higher SM levels and more acidic saliva, had a higher chance of experiencing dental caries. These findings should be considered in the planning of services and dental health care programs for Palestinian children.

  15. What is dental ecology?

    Science.gov (United States)

    Cuozzo, Frank P; Sauther, Michelle L

    2012-06-01

    Teeth have long been used as indicators of primate ecology. Early work focused on the links between dental morphology, diet, and behavior, with more recent years emphasizing dental wear, microstructure, development, and biogeochemistry, to understand primate ecology. Our study of Lemur catta at the Beza Mahafaly Special Reserve, Madagascar, has revealed an unusual pattern of severe tooth wear and frequent tooth loss, primarily the result of consuming a fallback food for which these primates are not dentally adapted. Interpreting these data was only possible by combining our areas of expertise (dental anatomy [FC] and primate ecology [MS]). By integrating theoretical, methodological, and applied aspects of both areas of research, we adopted the term "dental ecology"-defined as the broad study of how teeth respond to the environment. Specifically, we view dental ecology as an interpretive framework using teeth as a vehicle for understanding an organism's ecology, which builds upon earlier work, but creates a new synthesis of anatomy and ecology that is only possible with detailed knowledge of living primates. This framework includes (1) identifying patterns of dental pathology and tooth use-wear, within the context of feeding ecology, behavior, habitat variation, and anthropogenic change, (2) assessing ways in which dental development and biogeochemical signals can reflect habitat, environmental change and/or stress, and (3) how dental microstructure and macro-morphology are adapted to, and reflect feeding ecology. Here we define dental ecology, provide a short summary of the development of this perspective, and place our new work into this context. Copyright © 2012 Wiley Periodicals, Inc.

  16. The effect of Filmed modeling on the anxious and cooperative behavior of 4-6 years old children during dental treatment: A randomized clinical trial study.

    Science.gov (United States)

    Paryab, Mehrsa; Arab, Zeinab

    2014-07-01

    The aim of this study was to evaluate the effect of Filmed modeling in comparison with commonly used Tell-Show-Do technique (T.S.D) on the anxious and cooperative behavior of 4-6 years old children during dental practice. Forty six children aged 4-6 years were enrolled in this study and randomly allocated into two groups. Group I: At the first visit, the procedure of Tell-Show-Do, and at the second visit, the treatment procedures were performed by the dentist for the children. Group II: At the first visit, children watched a film consisting of the procedure of Tell-Show-Do performed on a child model. At the second visit, treatment procedures were performed. In both groups, during the treatment procedure, index of heart rate was measured and behaviors of children were recorded. The children's anxious and cooperative behaviors on the recordings were quantified according to Venham and Frankl rating scales, respectively. The data were compared between two groups using T-test method. All statistical references were made at 0.05. There were no statistically significant differences in heart rate measures, clinical anxiety and cooperative behavior scores of children between the two groups (P = 0.6). Filmed modeling can be an efficient alternative method to Tell-Show-Do technique in pre-appointment preparation of the 4-6 years old children during dental treatment.

  17. Evaluation of mechanical and optical behavior of current esthetic dental restorative CAD/CAM composites.

    Science.gov (United States)

    Stawarczyk, Bogna; Liebermann, Anja; Eichberger, Marlis; Güth, Jan-Frederik

    2015-03-01

    To determine the mechanical and optical properties of CAD/CAM composites (LAVA Ultimate, Cerasmart, Shofu Block and two exp. CAD/CAM composites), a hybrid material (VITA Enamic), a leucite (IPS Empress CAD) and a lithium disilicate glass-ceramic (IPS e.max CAD). Three-point flexural strength (FS) was investigated according ISO 6872:2008 (N=240/n=30). Two-body wear (TBW) was analyzed in a chewing simulator (1,200,000 cycles, 50N, 5°/55°C) using human teeth as antagonists (N=120/n=15). Quantitative analysis of wear was carried out with a 3D-scanner and associated matching software. Discoloration rate (DR) after 14 days of storage in cress, curry, red wine, and distilled water (N=384/n=12), and translucency (T) (N=384/n=48) of CAD/CAM materials were measured in a spectrophotometer (400-700nm wavelength). Data were analyzed using two-/one-way ANOVA with Scheffé post-hoc test, Kruskal-Wallis-H test, and linear mixed models (α=0.05). IPS e.max CAD showed the highest FS (pCAD/CAM composites (exception: Shofu Block). The lowest FS showed VITA Enamic and IPS Empress CAD (pCAD, VITA Enamic, exp. CAD/CAM composite 2, followed by IPS e.max presented lower material TBW than the remaining CAD/CAM materials (pcurry>cress>distilled water) exerted the highest influence on DR (pCAD/CAM material. Glass-ceramics showed lower DR than CAD/CAM composites (pCAD/CAM composites presented moderate FS, high T and antagonist friendly behavior. Glass-ceramic demonstrated the most favorable DR and lowest TBW on the material side. Copyright © 2015 Elsevier Ltd. All rights reserved.

  18. Use of online sources of information by dental practitioners

    DEFF Research Database (Denmark)

    Funkhouser, Ellen; Agee, Bonita S; Gordan, Valeria V

    2014-01-01

    other and to offline users. CONCLUSION: A relatively small proportion of dental practitioners use information from online sources for practice guidance. Variation exists regarding practitioners' use of online source resources and how they rate the value of offline information sources for practice......OBJECTIVE: Estimate the proportion of dental practitioners who use online sources of information for practice guidance. METHODS: From a survey of 657 dental practitioners in The Dental Practice-Based Research Network, four indicators of online use for practice guidance were calculated: read...... journals online, obtained continuing education (CDE) through online sources, rated an online source as most influential, and reported frequently using an online source for guidance. Demographics, journals read, and use of various sources of information for practice guidance in terms of frequency...

  19. Syllabus of Dental Materials

    Science.gov (United States)

    1984-07-01

    York: Plenum Pub Co, 1975:635. V ".. PROPERTIES OF DENTAL MATERIALS--WOOLSEY 11 14. Ringle RD, Webber RL, Anusavice KJ, Fairhurst CW. Thermal... Anusavice et al (8) have demonstrated in silver-palladium metals, the presence of surface nodules created by internal oxidation of tin during the...683-689. 7. Ringle RD, Webber RL, Anusavice KJ, Fairhurst CW. Thermal expansion contraction behavior of dental porcelain-alloy systems. J Dent Res

  20. Route choice behavior under guidance of variable message signs%可变信息标志诱导下的路径选择行为

    Institute of Scientific and Technical Information of China (English)

    尚华艳; 黄海军; 高自友

    2009-01-01

    随着智能交通技术的发展,可变信息标志(VMS)被广泛应用于动态交通管理中.元胞传输模型(CTM)可以很好的模拟交通流激波、排队形成与消散等交通流动力学特性.应用CTM研究了无信息诱导路径选择、基于VMS的近视转换和有界理性路径选择等三种规则,数值模拟结果表明,后两种规则可以减少系统总出行时间,信息服从率越高,系统的改善程度越大.当有界理性规则的"界"参数设置在一定区间内时,该规则优于近视转换规则,否则不如近视转换规则.%The variable message signs (VMS) have been widely used in guiding and managing the dynamic traffic with development of intelligent transportation technologies. It is known that the cell transmission model (CTM) can well reproduce such traffic dynamics as shock waves and jams. The CTM is employed in this paper to study the route choice behavior under three different rules, namely the rule without information guidance, the VMS-based myopic switching rule and the VMS-based boundedly rational switching rule.Simulation results show that the latter two rules can enhance the system performance through reducing the total travel time. The enhancement increases with the compliance rate to VMS. The boundedly rational switching rule is better than the myopic switching rule when its bound associated parameter is within a certain range, not so otherwise.

  1. Objective assessment of the influence of the parental presence on the fear and behavior of anxious children during their first restorative dental visit

    Science.gov (United States)

    Pani, Sharat C.; AlAnazi, Ghazi S.; AlBaragash, Abdulrahman; AlMosaihel, Mohammad

    2016-01-01

    Aims and Objectives: Parents play an important role in the dental behavior of a child patient. This study aimed to assess the effect of parental presence on the behavior of the child and objectively measure the behavior using pulse oximetry. Materials and Methods: The study was registered with the clinical trials registry of the National Institutes of Health (NCT02619981). The children were divided into three groups, those who had no accompanying parent, those accompanied by their fathers, and those accompanied by their mothers. The Venham anxiety and behavior scores were used for subjective measurements whereas the objective measurement of fear was done by measuring the heart rate using a portable pulse oximeter at six critical clinical situations. Statistical analysis was carried out using the Statistical Package for the Social Sciences version 21 (IBM corp. Armonk, NY, USA). Results: One hundred and twenty two children aged between 6 years and 8 years completed the study. Most of the children accompanied by fathers were males while most of the children accompanied by their mother were females. It was seen that females showed a higher mean heart rate than males at all steps. Children who had their parents outside the operatory exhibited lower anxiety and behavior scores than those whose parents were present; however, they showed a significantly higher pulse rate at all procedures. Boys had higher anxiety and behavior scores than girls, however, these differences were not statistically significant. Conclusion: The results of this study suggest that the presence of the parent in the operatory reduces the physiological manifestations of anxiety in children in their first restorative dental visit. PMID:27652248

  2. Tests and Guidance: What Students Need.

    Science.gov (United States)

    Krumboltz, John D.

    1982-01-01

    Innovations in testing and guidance which can integrate assessment to facilitate learning, help develop practical wisdom in behavior, and correct students' faulty cognitions in career decisions are described. (CM)

  3. About Dental Amalgam Fillings

    Science.gov (United States)

    ... and Medical Procedures Dental Devices Dental Amalgam About Dental Amalgam Fillings Share Tweet Linkedin Pin it More ... should I have my fillings removed? What is dental amalgam? Dental amalgam is a dental filling material ...

  4. Dental Implant Surgery

    Science.gov (United States)

    ... here to find out more. Dental Implant Surgery Dental Implant Surgery Dental implant surgery is, of course, surgery, ... here to find out more. Dental Implant Surgery Dental Implant Surgery Dental implant surgery is, of course, surgery, ...

  5. Dental Sealants

    Science.gov (United States)

    ... Dates Electronic Submission of Applications Grants 101 (How to Write a Grant) Questions and Answers Grant Writing Tips ... offers strategies for providing oral care. NIDCR > Data & Statistics > Find Data by Topic > Dental Sealants Dental Sealants ...

  6. Dental Assistants

    Science.gov (United States)

    ... Z INDEX | OOH SITE MAP | EN ESPAÑOL Healthcare > Dental Assistants PRINTER-FRIENDLY EN ESPAÑOL Summary What They ... of workers and occupations. What They Do -> What Dental Assistants Do About this section Assistants prepare and ...

  7. Dental sealants

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000779.htm Dental sealants To use the sharing features on this ... case a sealant needs to be replaced. How Dental Sealants are Applied Your dentist applies sealants on ...

  8. Dental cavities

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/001055.htm Dental cavities To use the sharing features on this page, please enable JavaScript. Dental cavities are holes (or structural damage) in the ...

  9. Dental coping strategies, general anxiety, and depression among adult patients with dental anxiety but with different dental-attendance patterns.

    Science.gov (United States)

    Bernson, Jenny M; Elfström, Magnus L; Hakeberg, Magnus

    2013-06-01

    The aim of the present study was to investigate dental coping strategies, general anxiety, and depression in relation to regularity of dental treatment among persons with either regular dental care or phobic avoidance, whilst controlling for sociodemographic factors. Psychometric questionnaires on dental anxiety, dental coping strategies, general anxiety, and depression were delivered to 263 adult patients with dental phobic avoidance behavior who were seeking help from a specialized dental fear clinic and to 141 adult patients with dental anxiety who were receiving regular dental care from various public dental clinics. The results showed that the levels of dental and general anxiety and of depression were significantly higher among irregular attendees compared with regular attendees. Irregular attendees admitted fewer adaptive coping strategies. Predictive of irregular dental care were gender, dental anxiety, general anxiety, and the nonuse of the coping strategy 'optimism'. This study further confirms earlier preliminary results that the use of optimistic thinking is predictive for regular dental attendance habits and that male gender is a risk factor for irregular attendance. Moreover, this study adds that a high level of general anxiety indicates a higher risk for irregular dental care.

  10. DENTAL MATERIALS.

    Science.gov (United States)

    The study deals with the determination of characteristic physical and mechanical properties of restorative dental materials, and effect of...manipulative variables on these properties. From the study an entirely new dental gold inlay casting technic was developed, based on the principle of...controlled water added hygroscopic technic. The method has had successful dental applications and is a recognized method of dental inlay casting procedure

  11. A Cognitive Task Analysis for Dental Hygiene.

    Science.gov (United States)

    Cameron, Cheryl A.; Beemsterboer, Phyllis L.; Johnson, Lynn A.; Mislevy, Robert J.; Steinberg, Linda S.; Breyer, F. Jay

    2000-01-01

    As part of the development of a scoring algorithm for a simulation-based dental hygiene initial licensure examination, this effort conducted a task analysis of the dental hygiene domain. Broad classes of behaviors that distinguish along the dental hygiene expert-novice continuum were identified and applied to the design of nine paper-based cases…

  12. On guidance and volatility

    NARCIS (Netherlands)

    Billings, M.B.; Jennings, R.; Lev, B.

    2013-01-01

    Survey evidence suggests that managers voluntarily disclose information, particularly earnings guidance, with an aim toward dampening share price volatility. Yet, consultants and influential institutions advise against providing guidance — citing fears of litigation and market penalties associated w

  13. Graphic Turbulence Guidance

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Forecast turbulence hazards identified by the Graphical Turbulence Guidance algorithm. The Graphical Turbulence Guidance product depicts mid-level and upper-level...

  14. Graphical Turbulence Guidance - Composite

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Forecast turbulence hazards identified by the Graphical Turbulence Guidance algorithm. The Graphical Turbulence Guidance product depicts mid-level and upper-level...

  15. Dental devices: classification of dental amalgam, reclassification of dental mercury, designation of special controls for dental amalgam, mercury, and amalgam alloy. Final rule.

    Science.gov (United States)

    2009-08-01

    The Food and Drug Administration (FDA) is issuing a final rule classifying dental amalgam into class II, reclassifying dental mercury from class I to class II, and designating a special control to support the class II classifications of these two devices, as well as the current class II classification of amalgam alloy. The three devices are now classified in a single regulation. The special control for the devices is a guidance document entitled, "Class II Special Controls Guidance Document: Dental Amalgam, Mercury, and Amalgam Alloy." This action is being taken to establish sufficient regulatory controls to provide reasonable assurance of the safety and effectiveness of these devices. Elsewhere in this issue of the Federal Register, FDA is announcing the availability of the guidance document that will serve as the special control for the devices.

  16. Child′s dental fear: Cause related factors and the influence of audiovisual modeling

    National Research Council Canada - National Science Library

    Jayanthi Mungara; Madhulika Injeti; Elizabeth Joseph; Arun Elangovan; Rajendran Sakthivel; Girija Selvaraju

    2013-01-01

    Background: Delivery of effective dental treatment to a child patient requires thorough knowledge to recognize dental fear and its management by the application of behavioral management techniques. Children...

  17. Saliva and dental erosion

    Science.gov (United States)

    BUZALAF, Marília Afonso Rabelo; HANNAS, Angélicas Reis; KATO, Melissa Thiemi

    2012-01-01

    Dental erosion is a multifactorial condition. The consideration of chemical, biological and behavioral factors is fundamental for its prevention and therapy. Among the biological factors, saliva is one of the most important parameters in the protection against erosive wear. Objective This review discusses the role of salivary factors on the development of dental erosion. Material and Methods A search was undertaken on MEDLINE website for papers from 1969 to 2010. The keywords used in the research were "saliva", "acquired pellicle", "salivary flow", "salivary buffering capacity" and "dental erosion". Inclusion of studies, data extraction and quality assessment were undertaken independently and in duplicate by two members of the review team. Disagreements were solved by discussion and consensus or by a third party. Results Several characteristics and properties of saliva play an important role in dental erosion. Salivary clearance gradually eliminates the acids through swallowing and saliva presents buffering capacity causing neutralization and buffering of dietary acids. Salivary flow allows dilution of the acids. In addition, saliva is supersaturated with respect to tooth mineral, providing calcium, phosphate and fluoride necessary for remineralization after an erosive challenge. Furthermore, many proteins present in saliva and acquired pellicle play an important role in dental erosion. Conclusions Saliva is the most important biological factor affecting the progression of dental erosion. Knowledge of its components and properties involved in this protective role can drive the development of preventive measures targeting to enhance its known beneficial effects. PMID:23138733

  18. Saliva and dental erosion

    Directory of Open Access Journals (Sweden)

    Marília Afonso Rabelo Buzalaf

    2012-10-01

    Full Text Available Dental erosion is a multifactorial condition. The consideration of chemical, biological and behavioral factors is fundamental for its prevention and therapy. Among the biological factors, saliva is one of the most important parameters in the protection against erosive wear. Objective: This review discusses the role of salivary factors on the development of dental erosion. Material and Methods: A search was undertaken on MeDLINe website for papers from 1969 to 2010. The keywords used in the research were "saliva", "acquired pellicle", "salivary flow", "salivary buffering capacity" and "dental erosion". Inclusion of studies, data extraction and quality assessment were undertaken independently and in duplicate by two members of the review team. Disagreements were solved by discussion and consensus or by a third party. Results: Several characteristics and properties of saliva play an important role in dental erosion. Salivary clearance gradually eliminates the acids through swallowing and saliva presents buffering capacity causing neutralization and buffering of dietary acids. Salivary flow allows dilution of the acids. In addition, saliva is supersaturated with respect to tooth mineral, providing calcium, phosphate and fluoride necessary for remineralization after an erosive challenge. Furthermore, many proteins present in saliva and acquired pellicle play an important role in dental erosion. Conclusions: Saliva is the most important biological factor affecting the progression of dental erosion. Knowledge of its components and properties involved in this protective role can drive the development of preventive measures targeting to enhance its known beneficial effects.

  19. Investigation on the microstructure, mechanical property and corrosion behavior of the selective laser melted CoCrW alloy for dental application.

    Science.gov (United States)

    Lu, Yanjin; Wu, Songquan; Gan, Yiliang; Li, Junlei; Zhao, Chaoqian; Zhuo, Dongxian; Lin, Jinxin

    2015-04-01

    In this study, an experimental investigation on fabricating Ni-free CoCrW alloys by selective laser melting (SLM) for dental application was conducted in terms of microstructure, hardness, mechanical property, electrochemical behavior, and metal release; and line and island scanning strategy were applied to determine whether these strategies are able to obtain expected CoCrW parts. The XRD revealed that the γ-phase and ε-phase coexisted in the as-SLM CoCrW alloys; The OM and SEM images showed that the microstructure of CoCrW alloys appeared square-like pattern with the fine cellular dendrites at the borders; tensile test suggested that the difference of mechanical properties of line- and island-formed specimens was very small; whilst the outcomes from the electrochemical and metal release tests indicated that the island-formed alloys showed slightly better corrosion resistance than line-formed ones in PBS and Hanks solutions. Considering that the mechanical properties and corrosion resistance of line-formed and island-formed specimens meet the standards of ISO 22674:2006 and EN ISO 10271, CoCrW dental alloys can be successfully fabricated by line and island scanning strategies in the SLM process.

  20. Dental health behavior of parents of children using non-fluoride toothpaste: a cross-sectional study

    OpenAIRE

    Ota, Junko; Yamamoto, Tatsuo; Ando, Yuichi; Aida, Jun; Hirata, Yukio; Arai, Seishiro

    2013-01-01

    Background One of the dental health goals of Health Japan 21, in which the Japanese government clarified its health policy, was to ensure the use of fluoride toothpaste in 90% or more of schoolchildren. This goal was not achieved. The aim of this cross-sectional questionnaire study was to evaluate the characteristics of parents whose children use non-fluoride toothpaste. Methods In December 2010, questionnaire forms were sent to 18 elementary schools or school dentists. Students (6-12 years o...

  1. Factors of Child Dental Fear : A Literature Review of Dental Fear in Children

    OpenAIRE

    Nakata, Ayumi; Sato, Yoko

    2011-01-01

    Objectives. To provide an overview of the literature investigating dental fear in children during the past ten years and to review factors of child dental fear. Methods. The literature was systematically retrieved from an electronic database. The thirty four literatures which were written about the fear of dentistry, psychology and behavior during dental treatment were chosen. Results. The terms of fear being used were “Shika-kyoufu”, “Dental fear”, etc. However, the terms were not de...

  2. Effects of Streptococcus Mutans on Corrosion Behavior of Dental Alloys%变形链球菌对牙科合金耐蚀性的影响

    Institute of Scientific and Technical Information of China (English)

    褚凤清; 王国平; 夏露; 王培志

    2011-01-01

    Objective: To study the effect of streptococcus mutans(S. Mutans) on corrosion behavior of Ni-Cr.Co - Cr and Au alloys. Methods: Three dental alloys were exposed to distilled water or TSB media with or without S. Mutans, and served as different groups. After co -cultured for 8 weeks, corrosion behavior of dental alloys were examined by electrochemical corrosion test and scanning electron microscope (SEM). Results: Ni-Cr and Co - Cr alloys showed increased in S. Mutans groups compared with medium groups but decreased absolute value of Ecorr and the Icorr in medium group compared with control groups. More pittings were observed on the surfaces of Ni- Cr and Co-Cr alloys in experimental group. Au alloys showed no significant difference in Ecorr and Icorr among three groups, and the pittings were not obvious. Conclusion: Streptococcus mutans could promote the corrosion behavior of Ni-Cr and Co -Cr alloys and decrease the corrosion resistance performance which makes the corrosion easier and faster. However, this effect is not obvious on corrosion behavior of Au alloys.%目的:探讨变形链球菌对镍铬合金、钴铬合金和金合金腐蚀性能的影响.方法:将3种牙科合金与变形链球菌在液体培养基中共同培养,以单纯培养基和空白组作为对照,8周后,进行电化学实验和扫描电镜观察.结果:电化学实验结果显示,镍铬、钴铬合金的自腐蚀电位绝对值及自腐蚀电流密度值均为培养基对照组低于变形链球菌组及空白对照组,且在变形链球菌组的合金表面不规则破裂孔明显增多.金合金各组自腐蚀电位和电流密度无统计学差异,金合金表面形貌无明显变化.结论:变形链球菌能增加口腔镍铬、钴铬合金的腐蚀倾向与腐蚀速率,但对金合金的影响不明显.

  3. Dental Hygienist.

    Science.gov (United States)

    Ohio State Univ., Columbus. Center on Education and Training for Employment.

    This document, which is designed for use in developing a tech prep competency profile for the occupation of dental hygienist, lists technical competencies and competency builders for 13 units pertinent to the health technologies cluster in general and 9 units specific to the occupation of dental hygienist. The following skill areas are covered in…

  4. The importance of preventive dental visits from a young age: systematic review and current perspectives

    Directory of Open Access Journals (Sweden)

    Bhaskar V

    2014-03-01

    Full Text Available Vaishnavi Bhaskar,1 Kathleen A McGraw,2 Kimon Divaris3 1Department of Health Policy and Management, Gillings School of Global Public Health, 2Health Sciences Library, 3Department of Pediatric Dentistry, School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA Background: Dental caries, the most common childhood chronic disease, disproportionately affects vulnerable parts of the population and confers substantial impacts to children, families, and health systems. Because efforts directed toward oral health promotion and disease prevention are fundamentally superior to dental rehabilitation secondary to disease development, early preventive dental visits (EPDVs are widely advocated by professional and academic stakeholders. The aim of this comprehensive review was to critically review and summarize available evidence regarding the effectiveness of EPDVs in improving children's oral health outcomes. Materials and methods: A systematic literature search of the PubMed and Embase electronic databases was undertaken to identify peer-reviewed publications investigating the effectiveness of EPDVs on oral health outcomes, including clinical, behavioral, and cost end points up to October 30, 2013. Outcomes of the identified studies were abstracted and summarized independently by two investigators. Results: Four manuscripts met the inclusion criteria and were included in the review. All studies were conducted in the US and employed a retrospective cohort study design using public insurance-claims data, whereas one study matched claims files with kindergarten state dental surveillance data. That study found no benefit of EPDVs in future clinically determined dental caries levels in kindergarten. The other three studies found mixed support for an association of EPDVs with subsequent more preventive and fewer nonpreventive visits and lower nonpreventive service-related expenditures. Selection bias and a problem-driven dental care

  5. The management of dental patients taking new generation oral anticoagulants.

    Science.gov (United States)

    Scott, Alun; Gibson, John; Crighton, Alexander

    2014-11-01

    Recently, new oral anticoagulants have been introduced as alternatives to warfarin. While national guidelines for treatment of dental patients taking warfarin as an anticoagulant are well-established, no such information is available for these novel therapeutic agents. At present, the local guidance available is contradictory between different health boards/health planning units, and liaison with the medical practitioner managing the individual patient's anticoagulation is imperative if any invasive procedure is proposed. This paper examines the available evidence regarding these drugs and sets out proposals for clinical guidance of dental practitioners treating these patients in primary dental care.

  6. Electrochemical impedance spectroscopy study of high-palladium dental alloys. Part II: behavior at active and passive potentials.

    Science.gov (United States)

    Sun, D; Monaghan, P; Brantley, W A; Johnston, W M

    2002-05-01

    Electrochemical impedance spectroscopic (EIS) analyses were performed on three high-palladium alloys and a gold-palladium alloy at active and passive potentials in five electrolytes that simulated body fluid and oral environmental conditions. All four alloys were previously found to have excellent corrosion resistance in these in vitro environments. Before performing the EIS analyses, alloy specimens were subjected to a clinically relevant heat treatment that simulated the firing cycles for a dental porcelain. It was found that the EIS spectra varied with test potential and electrolyte. Diffusional effects, related to the dealloying and subsequent surface enrichment in palladium of the high-palladium alloys, along with species adsorption and passivation, were revealed at both active and passive potentials, although these effects were more evident at the passive potentials.

  7. Factors affecting dental service quality.

    Science.gov (United States)

    Bahadori, Mohammadkarim; Raadabadi, Mehdi; Ravangard, Ramin; Baldacchino, Donia

    2015-01-01

    Measuring dental clinic service quality is the first and most important factor in improving care. The quality provided plays an important role in patient satisfaction. The purpose of this paper is to identify factors affecting dental service quality from the patients' viewpoint. This cross-sectional, descriptive-analytical study was conducted in a dental clinic in Tehran between January and June 2014. A sample of 385 patients was selected from two work shifts using stratified sampling proportional to size and simple random sampling methods. The data were collected, a self-administered questionnaire designed for the purpose of the study, based on the Parasuraman and Zeithaml's model of service quality which consisted of two parts: the patients' demographic characteristics and a 30-item questionnaire to measure the five dimensions of the service quality. The collected data were analysed using SPSS 21.0 and Amos 18.0 through some descriptive statistics such as mean, standard deviation, as well as analytical methods, including confirmatory factor. Results showed that the correlation coefficients for all dimensions were higher than 0.5. In this model, assurance (regression weight=0.99) and tangibility (regression weight=0.86) had, respectively, the highest and lowest effects on dental service quality. The Parasuraman and Zeithaml's model is suitable to measure quality in dental services. The variables related to dental services quality have been made according to the model. This is a pioneering study that uses Parasuraman and Zeithaml's model and CFA in a dental setting. This study provides useful insights and guidance for dental service quality assurance.

  8. Mirror movement-like defects in startle behavior of zebrafish dcc mutants are caused by aberrant midline guidance of identified descending hindbrain neurons.

    Science.gov (United States)

    Jain, Roshan A; Bell, Hannah; Lim, Amy; Chien, Chi-Bin; Granato, Michael

    2014-02-19

    Mirror movements are involuntary movements on one side of the body that occur simultaneously with intentional movements on the contralateral side. Humans with heterozygous mutations in the axon guidance receptor DCC display such mirror movements, where unilateral stimulation results in inappropriate bilateral motor output. Currently, it is unclear whether mirror movements are caused by incomplete midline crossing and reduced commissural connectivity of DCC-dependent descending pathways or by aberrant ectopic ipsilateral axonal projections of normally commissural neurons. Here, we show that in response to unilateral tactile stimuli, zebrafish dcc mutant larvae perform involuntary turns on the inappropriate body side. We show that these mirror movement-like deficits are associated with axonal guidance defects of two identified groups of commissural reticulospinal hindbrain neurons. Moreover, we demonstrate that in dcc mutants, axons of these identified neurons frequently fail to cross the midline and instead project ipsilaterally. Whereas laser ablation of these neurons in wild-type animals does not affect turning movements, their ablation in dcc mutants restores turning movements. Thus, our results demonstrate that in dcc mutants, turns on the inappropriate side of the body are caused by aberrant ipsilateral axonal projections, and suggest that aberrant ipsilateral connectivity of a very small number of descending axons is sufficient to induce incorrect movement patterns.

  9. Dental Anxiety among Medical and Paramedical Undergraduate Students of Malaysia

    National Research Council Canada - National Science Library

    Gunjal, Shilpa; Pateel, Deepak Gowda Sadashivappa; Parkar, Sujal

    2017-01-01

    ... In the field of behavior science, the terms dental fear and anxiety are highly related and often used interchangeably in the literature. A distinction between "normal" dental fear and "pathologic" de...

  10. Motivação e comportamento preventivo de saúde bucal em programa de assistência odontopediátrica na primeira infância Motivation and oral health preventive behavior in a pediatric dental assistance program for the early childhood

    Directory of Open Access Journals (Sweden)

    Antonio Bento Alves de MORAES

    2000-09-01

    dental examination. The compliance of the mothers with the dietary recommendations during the program was obtained in 27% of the cases. A cognitive model for change of behavior is proposed to understand the behavior of mothers related with the oral health of their children, while taking part in a preventive dental program. Guidance and training are necessary but not sufficient to change the behavior of mothers.

  11. Career guidance in communities

    DEFF Research Database (Denmark)

    Thomsen, Rie

    The aim of this paper is to inspire practitioners and professionals to leave their offices to bring career guidance into communities that might not identify with career guidance in the first instance. By making the effort to engage with communities, practitioners may bring about a critical change...

  12. Corporate information management guidance

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-08-01

    At the request of the Department of Energy`s (DOE) Information Management (IM) Council, IM representatives from nearly all Headquarters (HQ) organizations have been meeting over the past year as the Corporate Guidance Group (CGG) to develop useful and sound corporate information management (IM) guidance. The ability of the Department`s IM community to develop such unified guidance continues to be critical to the success of future Departmental IM planning processes and the establishment of a well-coordinated IM environment between Headquarters and field organizations. This report, with 26 specific corporate IM guidance items documented and unanimously agreed to, as well as 12 items recommended for further development and 3 items deferred for future consideration, represents a highly successful effort by the IM community. The effort has proven that the diverse DOE organizations can put aside individual preferences and work together towards a common and mutually beneficial goal. In examining most areas and issues associated with information management in the Department, they have developed specific, far-reaching, and useful guidance. The IM representatives recommend that the documented guidance items provided in this report and approved by the DOE IM Council be followed by all IM organizations. The representatives also strongly recommend that the guidance process developed by the CGG be the single process for developing corporate IM guidance.

  13. Shuttle entry guidance

    Science.gov (United States)

    Harpold, J. C.; Graves, C. A., Jr.

    1978-01-01

    This paper describes the design of the entry guidance for the Space Shuttle Orbiter. This guidance provides the steering commands for trajectory control from initial penetration of the earth's atmosphere until the terminal area guidance is activated at an earth-relative speed of 2500 fps. At this point, the Orbiter is at a distance of about 50 nmi from the runway threshold, and at an altitude of about 80,000 ft. The entry guidance design is based on an analytic solution of the equations of motion defining the drag acceleration profile that meets the terminal criteria of the entry flight while maintaining the flight within systems and operational constraints. Guidance commands, which are based on a control law that ensures damping of oscillatory type trajectory motion, are computed to steer the Orbiter to this drag acceleration profile.

  14. Shuttle entry guidance revisited

    Science.gov (United States)

    Mease, Kenneth D.; Kremer, Jean-Paul

    1992-08-01

    The Shuttle entry guidance concept is reviewed which is aimed at tracking a reference drag trajectory that leads to the specified range and velocity for the initiation of the terminal energy management phase. An approximate method of constructing the domain of attraction is proposed, and its validity is ascertained by simulation. An alternative guidance law yielding global exponential tracking in the absence of control saturation is derived using a feedback linearization method. It is noted that the alternative guidance law does not improve on the stability and performance of the current guidance law, for the operating domain and control capability of the Shuttle. It is suggested that the new guidance law with a larger operating domain and increased lift-to-drag capability would be superior.

  15. Shuttle entry guidance revisited

    Science.gov (United States)

    Mease, Kenneth D.; Kremer, Jean-Paul

    1992-01-01

    The Shuttle entry guidance concept is reviewed which is aimed at tracking a reference drag trajectory that leads to the specified range and velocity for the initiation of the terminal energy management phase. An approximate method of constructing the domain of attraction is proposed, and its validity is ascertained by simulation. An alternative guidance law yielding global exponential tracking in the absence of control saturation is derived using a feedback linearization method. It is noted that the alternative guidance law does not improve on the stability and performance of the current guidance law, for the operating domain and control capability of the Shuttle. It is suggested that the new guidance law with a larger operating domain and increased lift-to-drag capability would be superior.

  16. An analysis of children's dental care seeking behavior in Nanjing city%南京市儿童牙病病人就医行为的调查分析

    Institute of Scientific and Technical Information of China (English)

    刘素君; 王世超; 吴友农

    2011-01-01

    目的:了解南京市儿童牙病患儿就诊原因和就医行为,以便有针对性地开展口腔健康教育、儿童心理辅导.方法:对来我院儿童牙科就诊的3~12岁儿童牙病患儿或家长进行问卷调查423例,幼儿园3~6岁儿童家长问卷调查216例.调查内容包括就医原因、末次就诊接受的口腔治疗项目、6岁以下儿童中过去1年内未就医原因.结果:儿童牙病以牙痛和有口腔问题而检查者居多,分别占56.26%和17.26%,并以拔牙、龋病者居多,分别占29.08%和27.42%;定期检查和接受预防措施的较少;78.24%的6岁儿童过去1年内没有看过牙.结论:儿童牙病以龋病及其并发症为主要就诊原因,就医行为以牙病引起急、慢性牙痛和有口腔问题者居多,治疗以龋病治疗和拔牙为主.儿童和家长口腔健康教育有待加强.%AIM: To understand the reasons for children to see a dentist and the patterns of dental care see-king behavior in Nanjing city, and to provide clinical guidance for individual oral health education, nursing cooperation and psychological counseling for children. METHODS: Four hundred and twenty-three questionnaires from children or their parents visiting the hospital and 216 questionnaires from the parents of kindergarten children under 6 were collected. Questions included the reasons for their visits, the treatment they received in the last visit, and the reasons why the children under 6 did not go to the dentist for the past year. RESULTS: The main reasons for children to visit a dentist were toothache and other oral problems, with proportions of 56.26% and 17.26% , respectively. However, ver-y few children went to a dentist for regular examination or preventive treatment. Among all the treatment items, tooth extraction came first (accounting for 29.08% ), followed by filling (27.42% ). 78. 24% of 6-year-old children did not go to the dentist in the past year. CONCUSION: Caries and its complications are the main

  17. The Dental Fitness of Army War College Students, Class of 1985.

    Science.gov (United States)

    2014-09-26

    improve dental fitness by the Army was collected from journals , magazines, unpublished reports, guidance from Army Dental Corps leadership, and personal...were endodontically (root canal) related; and for I (7/) oral surgery (third molar) related. DENTAL TREATMENT RECEIVED FIRST NINE MONTHS AT THE AWC...extractions, biopsy, third molars); and four (4) needed endodontic treatment (root canals). 14 fr .- I . - - - 3 (potential dental emergencies within a

  18. Utilization of dental care: An Indian outlook.

    Science.gov (United States)

    Gambhir, Ramandeep Singh; Brar, Prabhleen; Singh, Gurminder; Sofat, Anjali; Kakar, Heena

    2013-07-01

    Oral health has a significant impact on the quality of life, appearance, and self-esteem of the people. Preventive dental visits help in the early detection and treatment of oral diseases. Dental care utilization can be defined as the percentage of the population who access dental services over a specified period of time. There are reports that dental patients only visit the dentist when in pain and never bother to return for follow-up in most cases. To improve oral health outcomes an adequate knowledge of the way the individuals use health services and the factors predictive of this behavior is essential. The interest in developing models explaining the utilization of dental services has increased; issues like dental anxiety, price, income, the distance a person had to travel to get care, and preference for preservation of teeth are treated as barriers in regular dental care. Published materials which pertain to the use of dental services by Indian population have been reviewed and analyzed in depth in the present study. Dental surgeons and dental health workers have to play an adequate role in facilitating public enlightenment that people may appreciate the need for regular dental care and make adequate and proper use of the available dental care facilities.

  19. Utilization of dental care: An Indian outlook

    Science.gov (United States)

    Gambhir, Ramandeep Singh; Brar, Prabhleen; Singh, Gurminder; Sofat, Anjali; Kakar, Heena

    2013-01-01

    Oral health has a significant impact on the quality of life, appearance, and self-esteem of the people. Preventive dental visits help in the early detection and treatment of oral diseases. Dental care utilization can be defined as the percentage of the population who access dental services over a specified period of time. There are reports that dental patients only visit the dentist when in pain and never bother to return for follow-up in most cases. To improve oral health outcomes an adequate knowledge of the way the individuals use health services and the factors predictive of this behavior is essential. The interest in developing models explaining the utilization of dental services has increased; issues like dental anxiety, price, income, the distance a person had to travel to get care, and preference for preservation of teeth are treated as barriers in regular dental care. Published materials which pertain to the use of dental services by Indian population have been reviewed and analyzed in depth in the present study. Dental surgeons and dental health workers have to play an adequate role in facilitating public enlightenment that people may appreciate the need for regular dental care and make adequate and proper use of the available dental care facilities. PMID:24082719

  20. Dental OCT

    Science.gov (United States)

    Wilder-Smith, Petra; Otis, Linda; Zhang, Jun; Chen, Zhongping

    This chapter describes the applications of OCT for imaging in vivo dental and oral tissue. The oral cavity is a diverse environment that includes oral mucosa, gingival tissues, teeth and their supporting structures. Because OCT can image both hard and soft tissues of the oral cavity at high resolution, it offers the unique capacity to identity dental disease before destructive changes have progressed. OCT images depict clinically important anatomical features such as the location of soft tissue attachments, morphological changes in gingival tissue, tooth decay, enamel thickness and decay, as well as the structural integrity of dental restorations. OCT imaging allows for earlier intervention than is possible with current diagnostic modalities.

  1. Use of online sources of information by dental practitioners: findings from The Dental Practice-Based Research Network.

    Science.gov (United States)

    Funkhouser, Ellen; Agee, Bonita S; Gordan, Valeria V; Rindal, D Brad; Fellows, Jeffrey L; Qvist, Vibeke; McClelland, Jocelyn; Gilbert, Gregg H

    2014-01-01

    Estimate the proportion of dental practitioners who use online sources of information for practice guidance. From a survey of 657 dental practitioners in The Dental Practice-Based Research Network, four indicators of online use for practice guidance were calculated: read journals online, obtained continuing education (CDE) through online sources, rated an online source as most influential, and reported frequently using an online source for guidance. Demographics, journals read, and use of various sources of information for practice guidance in terms of frequency and influence were ascertained for each. Overall, 21 percent (n = 138) were classified into one of the four indicators of online use: 14 percent (n = 89) rated an online source as most influential and 13 percent (n = 87) reported frequently using an online source for guidance; few practitioners (5 percent, n = 34) read journals online, fewer (3 percent, n = 17) obtained CDE through online sources. Use of online information sources varied considerably by region and practice characteristics. In general, the four indicators represented practitioners with as many differences as similarities to each other and to offline users. A relatively small proportion of dental practitioners use information from online sources for practice guidance. Variation exists regarding practitioners' use of online source resources and how they rate the value of offline information sources for practice guidance. © 2012 American Association of Public Health Dentistry.

  2. Effect of pH and fluoride on behavior of dental ZrO{sub 2} ceramics in artificial saliva

    Energy Technology Data Exchange (ETDEWEB)

    Mukaeda, L.E.; Robin, A.; Santos, C.; Taguchi, S.P.; Borges Junior, L.A., E-mail: luizamukaeda@gmail.com, E-mail: alain@demar.eel.usp.br, E-mail: claudinei@demar.eel.usp.br, E-mail: simone@demar.eel.usp.br, E-mail: borges.jr@itelefonica.com.br [Universidade de Sao Paulo (EEL/DEMAR/USP), Lorena, SP (Brazil). Escola de Engenharia; Machado, J.P.B., E-mail: joaopaulo@las.inpe.br [Instituto Nacional de Pesquisas Espaciais (INPE), Sao Jose dos Campos, SP (Brazil)

    2009-07-01

    A considerable increase in the ceramic products demand occurred due to the evolution of dental restoration techniques and these materials must resist to the complex mouth environment. The pH of saliva can decrease significantly due to the ingestion of acidic foods and beverages and mainly due to reactions occurring during bacteria metabolism that lead to the formation of organic acids. Fluorides are also present in the mouth since fluorides are usually added in drinking water, mouth washes, tooth pastes and gels for the prevention of plaque and caries formation. The combination of low pH and presence of fluorides can lead to the formation of HF and HF{sub 2}{sup -} which are detrimental to metallic and probably to ceramic devices. In this work, commercial blocks of ZrO{sub 2} ceramics (ProtMat Materiais Avancados® and Ivoclar®) were immersed in Fusayama artificial saliva of different pHs and fluoride concentrations. The properties of the as-produced ceramics (crystalline phases (XRD), microstructure (SEM), roughness (3D surface topography AFM) and mechanical resistance - Vickers hardness (Hv) and fracture toughness (KIC) were evaluated. Some of these properties were also determined after the immersion tests as well as the mass variation of the samples in order to evaluate the resistance of these ZrO{sub 2} ceramics to degradation under these conditions. (author)

  3. 恐惧心理对口腔门诊病人就诊行为和服务需求的影响%Influence of dental fear on patient behavior and oral care needs

    Institute of Scientific and Technical Information of China (English)

    成凡平; 武玉海; 冯金兰; 高赐凤

    2012-01-01

    目的:调查影响口腔门诊病人产生恐惧心理的相关因素,分析恐惧心理对就诊行为以及就诊服务需求的影响.方法:采用系统抽样的方式按照纳入标准选取831名口腔门诊病人作为问卷调查对象,问卷内容包括人口统计学资料、就诊心理状态、就诊行为、对服务舒适度需求等.结果:831人中有恐惧心理503人(60.5%),其中男性173人,女性330人,男女之间有显著性差异(P<0.05);有无恐惧心理在不同年龄、不同职业、不同受教育程度人群中也有显著性差异(P<0.05);有、无恐惧心理两组人群在定期口腔检查、按时复诊两个就诊行为中有显著性差异(P<0.05);在就诊前是否了解医生情况方面无显著差异;两组人群对就诊过程中与服务舒适度相关的因素感到不安的程度由高到低依次均为①牙钻声、②出血、③气味、④灯光、⑤体位,各因素不安程度有显著性差异(P<0.05).结论:恐惧心理在口腔门诊大多数病人中存在,其形成与性别、年龄、职业、受教育程度相关;与无恐惧心理人群相比,有恐惧心理人群更难定期口腔检查,但更容易按时复诊,对就诊服务舒适度的潜在需求明显增高.%AIM: To investigate the effects of dental fear on patient behavior when seeing a dentist and on patient needs when seeking dental care. METHODS: Eight hundred and thirty-one patients who met the inclusion criteria from Huadu Maternal & Child Health Care Hospital of Guangzhou were included in this study. Subjects were asked to fill a self- reported questionnaire. Questions in the questionnaire included demographic information, psychological state, patient behavior, and dental service needs. RESULTS; Among the 831 subjects, 503 (173 male, 330 female) reported dental fear, a significant genial difference was found. Age, occupation, and education level also showed significant influence on dental fear (P<0.05). Patients with

  4. Dental Caries (Tooth Decay)

    Science.gov (United States)

    ... Find Data by Topic > Dental Caries (Tooth Decay) Dental Caries (Tooth Decay) Main Content Dental caries (tooth decay) remains the most prevalent chronic ... important source of information on oral health and dental care in the United States since the early ...

  5. Infant dental care (image)

    Science.gov (United States)

    ... sugar water. As the child grows, establishing proper dental hygiene will promote healthy teeth and gums which are essential to overall good health. Poor dental development, dental disease, and dental trauma can result ...

  6. Comportamiento de proporciones divinas e índice de Bolton en mediciones dentales de individuos con maloclusión Behavior of "divine" proportions and the Bolton's index in dental measurements of subjects with malocclusion

    Directory of Open Access Journals (Sweden)

    Adriana Lorenzo Uribazo

    2011-09-01

    Full Text Available Los pacientes acuden cada vez con más frecuencia a los servicios estomatológicos en busca de mejorar su aspecto estético. Uno de los métodos más polémicos para el examen de la estética lo constituyen aquellos que se basan en el empleo de la proporción divina, esto motivó a la realización de este trabajo. Se evaluó el comportamiento de las proporciones divinas en mediciones dentales de individuos con maloclusión, mediante el empleo del índice de Bolton. Se realizó un estudio descriptivo transversal en estudiantes del segundo al quinto años de la Facultad de Estomatología de La Habana, Cuba, desde el mes de enero del año 2009 al mes de enero del año 2010. Se emplearon modelos de yeso pertenecientes a 80 estudiantes de 18 a 25 años de edad. Se efectuaron mediciones de los anchos mesiodistales de los dientes y se relacionaron algunas secciones de dientes donde se identificaron los que guardaron relación de proporción divina, según la variable oclusión. Los estudiantes que presentaron maloclusión se estudiaron según la variación del índice de Bolton. En los estudiantes con maloclusión el índice de Bolton que predominó fue a favor de un mayor tamaño de los dientes anteroinferiores, con rangos de proporción divina menores de 1,60.Patients came more and more frequently to Stomatology services to improve the esthetic feature. Among the more polemic methods for esthetics examination are those based on the use of divine proportion, leading to carrying out of present paper to assess the behavior of divine proportions in the dental measurements of subjects with malocclusion using the Bolton's index. A cross-sectional and descriptive study was conducted in second to fifth years students of the Stomatology Faculty of La Habana from January, 2009 to January, 2010 using the plaster casts in 80 students aged 18 to 25. Measurements of the mesio-distal width of teeth relating some sections of them where were identified those en

  7. Laser Guidance Analysis Facility

    Data.gov (United States)

    Federal Laboratory Consortium — This facility, which provides for real time, closed loop evaluation of semi-active laser guidance hardware, has and continues to be instrumental in the development...

  8. First testing of an AUV mission planning and guidance system for water quality monitoring and fish behavior observation in net cage fish farming

    Directory of Open Access Journals (Sweden)

    D. Karimanzira

    2014-12-01

    Full Text Available Recently, underwater vehicles have become low cost, reliable and affordable platforms for performing various underwater tasks. While many aquaculture systems are closed with no harmful output, open net cage fish farms and land-based fish farms can discharge significant amounts of wastewater containing nutrients, chemicals, and pharmaceuticals that impact on the surrounding environment. Although aquaculture development has often occurred outside a regulatory framework, government oversight is increasingly common at both the seafood quality control level, and at baseline initiatives addressing the basic problem of pollution generated by culture operations, e.g. the European marine and maritime directives. This requires regular, sustainable and cost-effective monitoring of the water quality. Such monitoring needs devices to detect the water quality in a large sea area at different depths in real time. This paper presents a concept for a guidance system for a carrier (an autonomous underwater vehicle of such devices for the automated detection and analysis of water quality parameters.

  9. Influence of Different Abutment Designs on the Biomechanical Behavior of Dental Root-Analog Implant: A Three-Dimensional Finite Element Analysis.

    Science.gov (United States)

    He, Ling; Li, Deli; Zhang, Jiwu; Li, Xiucheng; Lu, Songhe; Tang, Zhihui

    2016-12-01

    The aim of this study was to evaluate cross-sectional area of the abutments, strain distribution in the periimplant bone, stress in the abutments and dental root-analog implant by different abutment design under different loading conditions, through three-dimensional finite element analysis. Two three-dimensional finite element models were established. Two types of abutments, oval cross section abutment (OCSA) and circular cross section abutment (CCSA) were designed, keeping the size of the thinnest implant wall 0.75 mm. Two types of load were applied to the abutment in each model: 100 N vertical load (V), 100 N vertical/50 N horizontal load (VH). The biomechanical behaviors of abutments, implants, and periimplant bone were recorded. The cross-section area of OCSA is 36.5% larger than that of CCSA. In implants, the maximum von Mises stress value in OCSA design was 24.6% lower than that in CCSA design under V and under VH. In abutments, the maximum von Mises stress value in OCSA design was 40.0% lower than that in CCSA design under V, the maximum von Mises stress value in OCSA design was 12.2% lower than that in CCSA design under VH. The irregular design offers advantages over regular design.

  10. Effect of frame design and veneering material on biomechanical behavior of zirconia dental crowns veneered with overpressing ceramics.

    Science.gov (United States)

    Porojan, Liliana; Topală, Florin; Porojan, Sorin; Savencu, Cristina

    2017-05-31

    The objective of this investigation was to compare alternative framework designs of molar zirconia crowns veneered with various overpressing ceramics and to predict the biomechanical behavior based on the stress evaluation. The hypothesis of the study is that the zirconia framework design and type of the veneering material, using the same technological procedure, may influence the biomechanical behavior of the restorations. Three geometric models with differential coping designs (uniform thickness, cutback and buccal reduction) were developed and two types of hot-pressed ceramics (leucite and lithium disilicate reinforced) were analyzed for the veneers. Using finite element analysis (FEA), maximum principle stresses were recorded in the tooth structures and in the restorations for all the developed designs. Results led to the conclusion that the hypothesis was accepted.

  11. Infant oral exam and first dental home.

    Science.gov (United States)

    Viswanathan, Kavitha

    2010-11-01

    The purpose of this article is to familiarize general practitioners with the components of a dental home including an infant oral exam, and to the First Dental Home initiative, which is unique to the State of Texas. This article encourages the general practitioners to actively participate in providing care for young children under the age of 3. Components of an infant oral examination are described here with emphasis on knee-to-knee or lap exam, caries risk assessment, preventive treatment, age-appropriate anticipatory guidance, and parent education. The First Dental Home is uniquely designed to help pediatric clients 6 months through 35 months of age to establish a dental home. The objectives, goal and components of FDH are discussed in detail.

  12. Dental specialty, career preferences and their influencing factors among final year dental students in Saudi Arabia

    Directory of Open Access Journals (Sweden)

    Hassan Suliman Halawany

    2017-01-01

    Conclusion: The results of this study show the top preferred specialties and career choices which can be a baseline for establishing national policies and for the improvement of graduate programs. There seems to be a need to promote mentoring activities and provide guidance and encouragement to pre-doctoral dental students in selecting the most appropriate specialty within their capability domain.

  13. My view on occupation guidance

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    Occupation instruction needs to the support of theories,in the case of the occupation guidance theory is not very developed in our country,It has very important sense that absorbing and drawing lessons from the advanced occupation guidance theory,and targeting guidance to occupation guidance work,.

  14. Dental caries

    DEFF Research Database (Denmark)

    Pitts, Nigel B; Zero, Domenick T; Marsh, Phil D

    2017-01-01

    , exposed root surfaces. The balance between pathological and protective factors influences the initiation and progression of caries. This interplay between factors underpins the classification of individuals and groups into caries risk categories, allowing an increasingly tailored approach to care. Dental......Dental caries is a biofilm-mediated, sugar-driven, multifactorial, dynamic disease that results in the phasic demineralization and remineralization of dental hard tissues. Caries can occur throughout life, both in primary and permanent dentitions, and can damage the tooth crown and, in later life...... caries is an unevenly distributed, preventable disease with considerable economic and quality-of-life burdens. The daily use of fluoride toothpaste is seen as the main reason for the overall decline of caries worldwide over recent decades. This Primer aims to provide a global overview of caries...

  15. Dental Calculus Arrest of Dental Caries

    Science.gov (United States)

    Keyes, Paul H.; Rams, Thomas E.

    2016-01-01

    Background An inverse relationship between dental calculus mineralization and dental caries demineralization on teeth has been noted in some studies. Dental calculus may even form superficial layers over existing dental caries and arrest their progression, but this phenomenon has been only rarely documented and infrequently considered in the field of Cariology. To further assess the occurrence of dental calculus arrest of dental caries, this study evaluated a large number of extracted human teeth for the presence and location of dental caries, dental calculus, and dental plaque biofilms. Materials and methods A total of 1,200 teeth were preserved in 10% buffered formal saline, and viewed while moist by a single experienced examiner using a research stereomicroscope at 15-25× magnification. Representative teeth were sectioned and photographed, and their dental plaque biofilms subjected to gram-stain examination with light microscopy at 100× magnification. Results Dental calculus was observed on 1,140 (95%) of the extracted human teeth, and no dental carious lesions were found underlying dental calculus-covered surfaces on 1,139 of these teeth. However, dental calculus arrest of dental caries was found on one (0.54%) of 187 evaluated teeth that presented with unrestored proximal enamel caries. On the distal surface of a maxillary premolar tooth, dental calculus mineralization filled the outer surface cavitation of an incipient dental caries lesion. The dental calculus-covered carious lesion extended only slightly into enamel, and exhibited a brown pigmentation characteristic of inactive or arrested dental caries. In contrast, the tooth's mesial surface, without a superficial layer of dental calculus, had a large carious lesion going through enamel and deep into dentin. Conclusions These observations further document the potential protective effects of dental calculus mineralization against dental caries. PMID:27446993

  16. Anticipatory guidance through DVD.

    Science.gov (United States)

    Franz, Sandra; McMahon, Pamela M; Calongne, Laurinda; Steele-Moses, Susan K

    2014-03-01

    The major purpose of the study was to determine if a 5-minute DVD is an effective method for communicating anticipatory guidance to parents at their child's 4-month well-child visit. A total of 84 caregivers were randomly assigned to receive anticipatory guidance through standard care (written anticipatory guidance handout and free talk) or DVD (DVD format + standard care). Participants completed a brief questionnaire immediately before and after their visit. As anticipated, knowledge scores improved significantly from pre-test to post-test. There was also a significant interaction between format used for anticipatory guidance and time. Specifically, there was greater improvement in knowledge over time for parents in the DVD group as compared with the standard care group. Additionally, the mean knowledge level of those in the DVD group as compared with those in the standard care group trended toward significance. Finally, visit length was shortened by nearly 3 minutes in the DVD group, and close to 100% of all respondents, regardless of anticipatory guidance format, indicated that they were very satisfied with their visit and amount of information learned.

  17. Preventive Dental Practices Motivational Model for Elementary Teachers in Training Institutions; Dental Health Instruction Project. Final Report.

    Science.gov (United States)

    Dennison, Darwin

    An investigation was conducted to determine the effects of instruction upon the dental health behavior of university students. The experimental group of 68 subjects, all elementary education majors, were exposed to a three--stage dental health motivational model: Dental Health Skills Instruction (four hours of laboratory instruction), Cognitive…

  18. Análisis del comportamiento mecánico de una aleación Ni-Cr-Mo para pilares dentales/Analysis of Mechanical Behavior of Ni-Cr-Mo alloy for Dental Abutments

    Directory of Open Access Journals (Sweden)

    Luis Alberto Laguado Villamizar

    2012-12-01

    Full Text Available El presente estudio caracteriza una aleación aplicable al diseño de pilares para implantes dentales. Se propone un material biocompatible y de alta resistencia mecánica como alternativa a las aleaciones de Titanio, disminuyendo los costos de materia prima y procesamiento. Se realizan pruebas mecánicas de tracción y de compresión a la aleación de Ni-Cr-Mo, posteriormente se realiza modelado 3D y simulación de sus propiedades mecánicas por medio de análisis de elementos finitos. Como resultado se obtiene que el material disminuye su resistencia mecánica después del proceso de fundición empleado. El modelo de simulación es válido para análisis de resistencia en pilares dentales.This study presents the characterization of a dental implant alloy for abutments. It proposes a biocompatible material and high mechanical resistance as an alternative to Titanium alloys, lowering costs of raw materials and processing. Mechanical testing of the Ni-Cr-Mo alloy and subsequently perform simulations of its mechanical properties by means of finite element analysis. As a result is obtained that the material reduces its mechanical strength after the casting for electric induction molding process. The simulation model is valid to make analysis of resistance to this type of dental devices.

  19. Restorative Rehabilitation of a Patient with Dental Erosion.

    Science.gov (United States)

    AlShahrani, Mohammed Thamer; Haralur, Satheesh B; Alqarni, Mohammed

    2017-01-01

    Dental erosion is the chemical dissolution of the tooth structure. Factors like eating disorders and gastrointestinal diseases are recognized as intrinsic factors for dental erosion. Advanced stages of dental erosion extensively damage the tooth morphology, consequently affecting both esthetics and functions. Reports indicate the growing prevalence of erosion, and hence knowledge of restorative rehabilitation of tooth erosion is an integral part of the contemporary dental practice. This clinical report describes an adult patient with gastroesophageal reflux induced dental erosion involving the palatal surface of the maxillary anterior teeth. The extensive involvement of the palatal surfaces compromised the esthetics, incisal guidance, and functional occlusal efficiency. Indirect all-ceramic restorations were utilized to restore the esthetics and occlusal reconstruction. In conclusion, patients affected by severe dental erosion require prosthetic rehabilitation besides the management of the associated medical condition.

  20. Restorative Rehabilitation of a Patient with Dental Erosion

    Directory of Open Access Journals (Sweden)

    Mohammed Thamer AlShahrani

    2017-01-01

    Full Text Available Dental erosion is the chemical dissolution of the tooth structure. Factors like eating disorders and gastrointestinal diseases are recognized as intrinsic factors for dental erosion. Advanced stages of dental erosion extensively damage the tooth morphology, consequently affecting both esthetics and functions. Reports indicate the growing prevalence of erosion, and hence knowledge of restorative rehabilitation of tooth erosion is an integral part of the contemporary dental practice. This clinical report describes an adult patient with gastroesophageal reflux induced dental erosion involving the palatal surface of the maxillary anterior teeth. The extensive involvement of the palatal surfaces compromised the esthetics, incisal guidance, and functional occlusal efficiency. Indirect all-ceramic restorations were utilized to restore the esthetics and occlusal reconstruction. In conclusion, patients affected by severe dental erosion require prosthetic rehabilitation besides the management of the associated medical condition.

  1. Occlusal tooth wear in patients of a dental school's prosthodontic department in Xi'an, China

    NARCIS (Netherlands)

    Meng, M.; Zhang, Q.; Witter, D.J.; Bronkhorst, E.M.; Creugers, N.H.J.; Ma, C.; Zhang, S.

    2014-01-01

    PURPOSE: To assess the relationships between occlusal tooth wear and occlusal conditions, chewing side preference, and occlusal guidance scheme. MATERIALS AND METHODS: A total of 257 Chinese adult dental school patients were categorized according to a hierarchical functional classification system.

  2. Dental anxiety: An understudied problem in youth.

    Science.gov (United States)

    Seligman, Laura D; Hovey, Joseph D; Chacon, Karina; Ollendick, Thomas H

    2017-07-01

    Dental anxiety and dental phobia typically emerge during childhood; the associated avoidance of dental care can result in oral health problems and is associated with lower quality of life. In this review, we discuss the definition of dental phobia and dental anxiety and issues related to their differentiation. We then review the literature on dental anxiety and dental phobia, including its prevalence, assessment, and sequalae. Moreover, we provide a synthesis of findings on the etiology and maintenance of dental phobia and propose a comprehensive cognitive behavioral model to guide further study. We also present a systematic qualitative and a quantitative review of the treatment literature, concluding that although we have made strides in learning how to prevent dental anxiety in youth, the methods effective in preventing anxiety may not be equally effective in treating youth with dental phobia. We propose a multidisciplinary approach, including those with expertise in pediatric anxiety as well as pediatric dentistry, is likely required to move forward. Copyright © 2017 Elsevier Ltd. All rights reserved.

  3. Formation of L1{sub 0}-type ordered {beta} Prime phase in as-solutionized dental Ag-Pd-Au-Cu alloys and hardening behavior

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Yonghwan [Department of Materials Science, Graduate School of Engineering, Tohoku University, 6-6 Aoba, Aramaki Aza, Aoba-ku, Sendai 980-8579 (Japan); Niinomi, Mitsuo, E-mail: niinomi@imr.tohoku.ac.jp [Department of Biomaterials Science, Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan); Hieda, Junko; Nakai, Masaaki [Department of Biomaterials Science, Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan); Fukui, Hisao [Department of Dental Materials Science, School of Dentistry, Aichi-Gakuin University, Nagoya 464-0045 (Japan)

    2012-04-01

    The relationship between the microstrucutural changes of L1{sub 0}-type ordered {beta} Prime phase and hardening behavior in as-solutionized dental Ag-Pd-Au-Cu alloys was investigated by changing the cooling rate and the solution treatment temperature. Additionally, the formation process of the {beta} Prime phase in as-solutionized Ag-Pd-Au-Cu alloy was attempted to clarify. The microstructural changes were observed by X-ray diffraction (XRD) method and transmission electron microscopy (TEM). The hardness was evaluated using a Vickers microhardness tester. The {beta} Prime phase is precipitated regardless of the cooling rate, after solution treatment at 1123 K. TEM dark field images show that the size of the {beta} Prime phase decreases and the number of {beta} Prime phase increases with an increase in the cooling rate. The Vickers hardness value increases with an increase in cooling rate. TEM dark field images show that the microstructure of {beta} Prime phase is similar when the solution treatment temperature increases from 1123 K to 1173 K. However, the Vickers hardness increases with an increase of solution treatment temperature. It is of great significance to reveal that the {beta} Prime phase precipitated in as-solutionized Ag-Pd-Au-Cu alloy is formed during cooling after high-temperature solution treatment and that the growth of the {beta} Prime phase is diffusion controlled. - Highlights: Black-Right-Pointing-Pointer The microstructure of {beta} Prime phase of Ag-Pd-Au-Cu alloy is changed by cooling rates. Black-Right-Pointing-Pointer The {beta} Prime phase is formed during the cooling process. Black-Right-Pointing-Pointer Growth of the {beta} Prime phase is dominated by diffusion. Black-Right-Pointing-Pointer Hardness of Ag-Pd-Au-Cu alloy increases remarkably with precipitation of the {beta} Prime phase.

  4. Efficacy of a behavioral self-help treatment with or without therapist guidance for co-morbid and primary insomnia -a randomized controlled trial

    Directory of Open Access Journals (Sweden)

    Jernelöv Susanna

    2012-01-01

    Full Text Available Abstract Background Cognitive behavioral therapy is treatment of choice for insomnia, but availability is scarce. Self-help can increase availability at low cost, but evidence for its efficacy is limited, especially for the typical insomnia patient with co-morbid problems. We hypothesized that a cognitive behaviorally based self-help book is effective to treat insomnia in individuals, also with co-morbid problems, and that the effect is enhanced by adding brief therapist telephone support. Methods Volunteer sample; 133 media-recruited adults with insomnia. History of sleep difficulties (mean [SD] 11.8 [12.0] years. 92.5% had co-morbid problems (e.g. allergy, pain, and depression. Parallel randomized (block-randomization, n ≥ 21 controlled "open label" trial; three groups-bibliotherapy with (n = 44 and without (n = 45 therapist support, and waiting list control (n = 44. Assessments before and after treatment, and at three-month follow-up. Intervention was six weeks of bibliotherapeutic self-help, with established cognitive behavioral methods including sleep restriction, stimulus control, and cognitive restructuring. Therapist support was a 15-minute structured telephone call scheduled weekly. Main outcome measures were sleep diary data, and the Insomnia Severity Index. Results Intention-to-treat analyses of 133 participants showed significant improvements in both self-help groups from pre to post treatment compared to waiting list. For example, treatment with and without support gave shorter sleep onset latency (improvement minutes [95% Confidence Interval], 35.4 [24.2 to 46.6], and 20.6 [10.6 to 30.6] respectively, and support gave a higher remission rate (defined as ISI score below 8; 61.4%, than bibliotherapy alone (24.4%, p's Conclusions Participants receiving self-help for insomnia benefited markedly. Self-help, especially if therapist-supported, has considerable potential to be as effective as individual treatment at lower cost, also for

  5. Curriculum Guidelines for Pathology for Dental Hygienists.

    Science.gov (United States)

    Journal of Dental Education, 1987

    1987-01-01

    Guidelines for structuring a pathology curriculum for dental hygienists include: definition of the field and its subfields; relationships with other fields; primary educational goals, prerequisites, core content, specific behavioral objectives; and suggestions for sequencing, faculty, facilities, and occupational safety. (MSE)

  6. Psychological Insights and Guidance of College Students’ Online Shopping Behavior%大学生网络购物的心理透视及教育引导

    Institute of Scientific and Technical Information of China (English)

    李玉雪

    2014-01-01

    Among College students, online shopping has become a relatively stable and common way of shopping. Through qualitative research, we found several psychologies concerning college students’ online shopping behavior:three-saving psychology (saving time, trouble and money), curiosity, conformist psychology, impulsive psychology, fashionable psychology, entertainment psychology and venting psychology. According to these seven psychologies, five kinds of countermeasure were proposed:forming sensible cognition of online shopping experiences, constraining online shopping behavior rationally, conducting online consuming education, promoting ecological consumption culture, building good environment of online shopping, thus, guiding college students' network consumption to a healthy and orderly orientation.%网络购物在大学生群体中已经成为一种比较稳定且普遍的购物方式。大学生网络购物背后有三省心理(省时、省事、省钱)、好奇心理、从众心理、冲动心理、达人心理、娱乐心理和发泄心理。针对这七种心理,可以从合理认知网购体验,理性约束网购行为,开展网络消费教育,弘扬生态消费文化,构建良好的网络消费环境几方面来引导大学生网络消费向健康有序的方向发展。

  7. Dental Training Films.

    Science.gov (United States)

    Veterans Administration Medical Center, Washington, DC.

    This dental training films catalog is organized into two sections. Section I is a category listing of the films by number and title, indexed according to generalized headings; categories are as follow: anatomy, articulator systems, complete dentures, dental assisting, dental laboratory technology, dental materials, dental office emergencies,…

  8. Vocational Guidance for Everyone

    Science.gov (United States)

    Holland, John L.

    1974-01-01

    Describes some of the current problems of vocational guidance, summarizes relevant knowledge and theory in the field, and offers some practical plans for a coordinated, theoretically compatible group of vocational programs, services, and experiences for a high school. (Author/JM)

  9. PIV Logon Configuration Guidance

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Glen Alan [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-03-04

    This document details the configurations and enhancements implemented to support the usage of federal Personal Identity Verification (PIV) Card for logon on unclassified networks. The guidance is a reference implementation of the configurations and enhancements deployed at the Los Alamos National Laboratory (LANL) by Network and Infrastructure Engineering – Core Services (NIE-CS).

  10. Regulatory guidance document

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-05-01

    The Office of Civilian Radioactive Waste Management (OCRWM) Program Management System Manual requires preparation of the OCRWM Regulatory Guidance Document (RGD) that addresses licensing, environmental compliance, and safety and health compliance. The document provides: regulatory compliance policy; guidance to OCRWM organizational elements to ensure a consistent approach when complying with regulatory requirements; strategies to achieve policy objectives; organizational responsibilities for regulatory compliance; guidance with regard to Program compliance oversight; and guidance on the contents of a project-level Regulatory Compliance Plan. The scope of the RGD includes site suitability evaluation, licensing, environmental compliance, and safety and health compliance, in accordance with the direction provided by Section 4.6.3 of the PMS Manual. Site suitability evaluation and regulatory compliance during site characterization are significant activities, particularly with regard to the YW MSA. OCRWM`s evaluation of whether the Yucca Mountain site is suitable for repository development must precede its submittal of a license application to the Nuclear Regulatory Commission (NRC). Accordingly, site suitability evaluation is discussed in Chapter 4, and the general statements of policy regarding site suitability evaluation are discussed in Section 2.1. Although much of the data and analyses may initially be similar, the licensing process is discussed separately in Chapter 5. Environmental compliance is discussed in Chapter 6. Safety and Health compliance is discussed in Chapter 7.

  11. Career guidance on the move

    DEFF Research Database (Denmark)

    Thomsen, Rie

    2013-01-01

    This article is about how the notion of place can be used in an analysis of career guidance practices and their development. It is about how a focus on the context of career guidance can develop an awareness of the place where guidance is practiced and support the development of career guidance...... in new places. In this article I introduce an analytical perspective on place; I give the example of the guidance café a practice development that took place into serious consideration because it was an attempt to develop career guidance practice through relocating it....

  12. Doing qualitative research in dentistry and dental education.

    Science.gov (United States)

    Edmunds, S; Brown, G

    2012-05-01

    The purpose of this paper is to assist dental researchers to develop their expertise in qualitative research. It sketches the key characteristics of qualitative research; summarises theoretical perspectives; outlines the core skills of qualitative data collection and the procedures which underlie three methods of qualitative research: interviewing, focus groups and concept maps. The paper offers some guidance on writing qualitative research and provides examples of qualitative research drawn from dentistry and dental education.

  13. Study of Online Behavior of College Students. Impetus, Assessment and Guidance%大学生网络行为的动因、评价及引导

    Institute of Scientific and Technical Information of China (English)

    刘慧

    2011-01-01

    College students surf the Internet to satisfy their curiosity and thirst for knowledge, to find outlets for their emotions and to accommodate, to escape and to seek relief. The network can help widen students' vision, improve their learning efficiency and increase channels for exchange and pouring out. At the same time, it becomes a problem when students get too dependent on the network or even addicted to it. Advisors must educate students to make proper use of the Internet, increase their moral and legal awareness concerning online behavior and provide timely psychological counseling.%求知和好奇、宣泄和调适、逃避和解脱是大学生上网的基本动因,网络既可以帮助大学生开阔视野,提高学习效率,扩大交流和倾诉的渠道,但也容易造成对网络的依赖和成瘾,要引导大学生正确利用网络,加强网络法律和道德教育,做好网络心理辅导工作。

  14. 都市居民游憩取向对平山温塘旅游度假区开发的导引%Guidance of Behavior of Urban Residents in Recreational Tourism Resort Development on the Pingshan Wentang

    Institute of Scientific and Technical Information of China (English)

    郭任聪; 沈和江; 张丽伟; 刘晋含

    2012-01-01

    Behavior of urban residents in recreation orientation,effectively guide the development of tourist resorts around the direction. With its unique location,resource features,resort environment characteristics and so on,under the guidance of the source market needs of major cities Beijing,Tianjin,Shijiazhuang,Pingshan Wen-tang Resourt contiously adjust the product mix and symbiosis in multiple formats,product type,business model and low-carbon environmental protection.%都市居民休闲游憩行为取向,有效引导了周边旅游度假区的开发方向.平山温塘旅游度假区借助其独特的区位、资源特色、度假环境等地学特征,在石家庄及京津冀主要都市客源市场需求的引导下,不断调整产品结构,并在多业态共生、产品类型、经营模式及低碳环保方面得以体现.

  15. Diabetes: Dental Tips

    Science.gov (United States)

    ... Diabetes and Oral Health > Diabetes: Dental Tips Diabetes: Dental Tips Main Content Diabetes can cause serious problems ... FOIA Web Policies Privacy Policy National Institute of Dental and Craniofacial Research National Institutes of Health Bethesda, ...

  16. Dental Exam for Children

    Science.gov (United States)

    ... they're most treatable. When to have a dental exam Various factors might determine how frequently your ... wisdom teeth (third molars) at the appropriate age. Dental X-ray A dental X-ray (radiograph) allows ...

  17. Dental Care in Pregnancy

    Science.gov (United States)

    Share with Women Dental Care in Pregnancy Why is dental care in pregnancy important? During pregnancy, you are more likely to have problems ... There are 2 major reasons women can have dental problems during pregnancy: Pregnancy gingivitis— During pregnancy, changes ...

  18. American Dental Education Association

    Science.gov (United States)

    ... Interest Groups ADEA Governance Documents and Publications ADEA Dental Faculty Code of Conduct ADEA Bylaws ADEAGies Foundation ... Benefits for Faculty ADEA Member Benefits for Allied Dental Programs ADEA Member Benefits for Dental Schools ADEA ...

  19. Dental Issues & Down Syndrome

    Science.gov (United States)

    ... Associated Conditions » Dental Issues & Down Syndrome Dental Issues & Down Syndrome Dental care is important for everybody, but people ... is Different About the Teeth of People With Down Syndrome? Delayed Eruption The teeth of people with Down ...

  20. Dental Implants.

    Science.gov (United States)

    Griggs, Jason A

    2017-10-01

    Systematic reviews of literature over the period between 2008 and 2017 are discussed regarding clinical evidence for the factors affecting survival and failure of dental implants. The factors addressed include publication bias, tooth location, insertion torque, collar design, implant-abutment connection design, implant length, implant width, bone augmentation, platform switching, surface roughness, implant coatings, and the use of ceramic materials in the implant body and abutment. Copyright © 2017 Elsevier Inc. All rights reserved.

  1. Associations between dental anxiety, sense of coherence, oral health-related quality of life and health behavior--a national Swedish cross-sectional survey.

    Science.gov (United States)

    Carlsson, Viktor; Hakeberg, Magnus; Wide Boman, Ulla

    2015-09-02

    Dental anxiety (DA) is a common condition associated with avoidance of dental care and subsequent health-related and psychosocial outcomes, in what has been described as the vicious circle of DA. Also, recent studies have found an association between the psychosocial concept of sense of coherence (SOC) and DA. More studies are needed to verify the relationship between DA and SOC, especially using population-based samples. There is also a need for studies including factors related to the vicious circle of DA, such as oral health-related quality of life (OHRQoL), in order to further establish the correlates of DA in the general population. Therefore, the aim of this study was to investigate the relationship between DA and SOC, OHRQoL and health-related behaviour in the general Swedish population. The survey included a randomly selected sample of the adult Swedish population (N = 3500, age 19 - 96 years.). Data was collected by means of telephone interviews. Dental anxiety was measured with a single question. The SOC measure consisted of three questions conceptualising the dimensions of the SOC: comprehensibility, manageability and meaningfulness. The data collection also included the five-item version of the Oral Health Impact Profile (OHIP-5), as a measure of OHRQoL, as well as questions on oral health-related behaviour and socioeconomic status. Statistical analyses were made with descriptive statistics and inference testing using Chi-square, t--test and logistic regression. High DA was associated with low OHRQoL, irregular dental care and smoking. There was a statistically significant relationship between the SOC and DA in the bivariate, but not in the multivariate, analyses. Dental anxiety was not associated with oral health-related behaviour or socioeconomic status. This cross-sectional national survey gives support to the significant associations between high dental anxiety, avoidance of dental care and health-related outcomes, which may further reinforce the

  2. Dental Holography

    Science.gov (United States)

    Dirtoft, Ingegerd

    1983-12-01

    Ten years have passed since the first articles appeared in this new field. The qualities of the laser light together with the need of contactless 3-D measurements for different dental purposes seemed to be extremely promising, but still just a few scientists have used the method and mostly for laboratory studies. For some reason there has been a preponderance for orthodontic measurements. This seems to be a bit peculiar from holographic view compared with measurements for engineering purposes, which usually are made on metals. So naturally holography can become a clinical tool for measurements in the field of fixed bridges, removable partial dentures and implants. One of the problems is that the need for holography in dental research must be fulfilled in collaboration with physicists. Only a two-way communication during an entire experiment can balance both technical and odontological demands and thus give practical and clinical important results. The need for an easy way of handling the evaluation to get all required information is another problem and of course the holographic equipment must be converted to a box easy to handle for everyone. At last the position of dental holography today is going to be carefully examined together with an attempt to look into the hopefully exciting and not to utopic future for this research field.

  3. Dental caries.

    Science.gov (United States)

    Pitts, Nigel B; Zero, Domenick T; Marsh, Phil D; Ekstrand, Kim; Weintraub, Jane A; Ramos-Gomez, Francisco; Tagami, Junji; Twetman, Svante; Tsakos, Georgios; Ismail, Amid

    2017-05-25

    Dental caries is a biofilm-mediated, sugar-driven, multifactorial, dynamic disease that results in the phasic demineralization and remineralization of dental hard tissues. Caries can occur throughout life, both in primary and permanent dentitions, and can damage the tooth crown and, in later life, exposed root surfaces. The balance between pathological and protective factors influences the initiation and progression of caries. This interplay between factors underpins the classification of individuals and groups into caries risk categories, allowing an increasingly tailored approach to care. Dental caries is an unevenly distributed, preventable disease with considerable economic and quality-of-life burdens. The daily use of fluoride toothpaste is seen as the main reason for the overall decline of caries worldwide over recent decades. This Primer aims to provide a global overview of caries, acknowledging the historical era dominated by restoration of tooth decay by surgical means, but focuses on current, progressive and more holistic long-term, patient-centred, tooth-preserving preventive care.

  4. Islamic Guidance for Drug Addiction

    Directory of Open Access Journals (Sweden)

    Agus Supriyanto

    2016-10-01

    Full Text Available Islamic Guidance is social rehabilitation program for Drug Addiction (resident. The goal of this research to know the Islamic guidance for resident at the Center for Rehabilitation of the National Narcotics Agency Lido Bogor. The methodology in this research is qualitative descriptive, with a sample two religious counselor. Can be concluded that Islamic guidance is implemented with the classical format, group format, and individual formats. The goal of the Islamic Guidance to develop religious mentally.

  5. Islamic Guidance for Drug Addiction

    OpenAIRE

    Agus Supriyanto

    2016-01-01

    Islamic Guidance is social rehabilitation program for Drug Addiction (resident). The goal of this research to know the Islamic guidance for resident at the Center for Rehabilitation of the National Narcotics Agency Lido Bogor. The methodology in this research is qualitative descriptive, with a sample two religious counselor. Can be concluded that Islamic guidance is implemented with the classical format, group format, and individual formats. The goal of the Islamic Guidance to develop religio...

  6. [Dental plaque microcosm biofilm behavior on a resin composite incorporated with nano-antibacterial inorganic filler containing long-chain alkyl quaternary ammonium salt].

    Science.gov (United States)

    Junling, Wu; Qiang, Zhang; Ruinan, Sun; Ting, Zhu; Jianhua, Ge; Chuanjian, Zhou

    2015-12-01

    To develop a resin composite incorporated with nano-antibacterial inorganic filler containing long-chain alkyl quaternary ammonium salt, and to measure its effect on human dental plaque microcosm biofilm. A novel nano-antibacterial inorganic filler containing long-chain alkyl quaternary ammonium salt was synthesized according to methods introduced in previous research. Samples of the novel nano-antibacterial inorganic fillers were modified by a coupling agent and then added into resin composite at 0%, 5%, 10%, 15% or 20% mass fractions; 0% composite was used as control. A flexural test was used to measure resin composite mechanical properties. Results showed that a dental plaque microcosm biofilm model with human saliva as inoculum was formed. Colony-forming unit (CFU) counts, lactic acid production, and live/dead assay of biofilm on the resin composite were calculated to test the effect of the resin composite on human dental plaque microcosm biofilm. The incorporation of nano-antibacterial inorganic fillers with as much as 15% concentration into the resin composite showed no adverse effect on the mechanical properties of the resin composite (P > 0.05). Resin composite containing 5% or more nano-antibacterial inorganic fillers significantly inhibited the metabolic activity of dental plaque microcosm biofilm, suggesting its strong antibacterial potency (P resin composite exhibited a strong antibacterial property upon the addition of up to 5% nano-antibacterial inorganic fillers, thereby leading to effective caries inhibition in dental application.

  7. Early manifestations in a cohort of children prenatally diagnosed with 47,XYY. Role of multidisciplinary counseling for parental guidance and prevention of aggressive behavior

    Directory of Open Access Journals (Sweden)

    Lalatta Faustina

    2012-10-01

    Full Text Available Abstract Background An increasing number of foetuses are recognized as having double Y because of the widespread use of prenatal screening using chorionic villus sampling and amniocentesis. 47, XYY karyotype occurs in about one out of 1,000 newborn males, but it is not often detected unless it is diagnosed during prenatal testing. Despite the fact that unbiased follow-up studies demonstrate largely normal post-natal development of young men with 47, XYY, there is a scarcity of controlled studies about the neurological, cognitive and behavioural phenotype which remains the main reason for anxiety and anticipatory negative attitudes of parents. Furthermore, prejudices still exist among professionals and the general population concerning the relationship between this sex chromosome aneuploidy and aggressive and antisocial behaviours. Methods We report on the clinical follow-up of children diagnosed prenatally with a 47,XYY karyotype, whose parents received multidisciplinary counselling and support at time of diagnosis. The specific focus of our study is on auxology, facial features, developmental milestones, behaviour, detection of aggressiveness as well as the evaluation of parental attitudes toward prenatal counselling. Clinical evaluations including auxological measurements and dysmorphological descriptions were as conducted on 13 boys aged 9 month -7 years. The Child Behavior Check List test specific for age and a 15 item questionnaire were administered to both parents. An update of ongoing problems was carried out by means of a telephone interview two years later. Results Our results show that, from birth, weight, height and head circumference were above average values while some facial features such mild hypertelorism are overrepresented when compared to parents' facial features. Language delay was detected in 8 out of 11 children older than 20 months. Parental attitudes were found to be favourable toward prenatal diagnoses of sexual

  8. Danish dental education:

    DEFF Research Database (Denmark)

    Moore, Rod

    1985-01-01

    The effects of Danish cultural traditions on dental education in Denmark are described, as well as the system's current structure and developing issues. Some Danish ideas for future exports of dental education programs and dental personnel are also discussed.......The effects of Danish cultural traditions on dental education in Denmark are described, as well as the system's current structure and developing issues. Some Danish ideas for future exports of dental education programs and dental personnel are also discussed....

  9. Danish dental education:

    DEFF Research Database (Denmark)

    Moore, Rod

    1985-01-01

    The effects of Danish cultural traditions on dental education in Denmark are described, as well as the system's current structure and developing issues. Some Danish ideas for future exports of dental education programs and dental personnel are also discussed.......The effects of Danish cultural traditions on dental education in Denmark are described, as well as the system's current structure and developing issues. Some Danish ideas for future exports of dental education programs and dental personnel are also discussed....

  10. Effects of Waxed Dental Floss Inclusion in the Regimen of Oral Health of Antarctic Personnel

    Science.gov (United States)

    Oral health indices were compared for two groups of subjects. One group was trained to use dental floss, the other was not. Professional guidance was...inference drawn from the data gathered suggests that dental floss, used regularly as an adjunct to other home care procedures, can aid in achieving and...maintaining a significantly higher level of gingival health than is attainable without the use of dental floss.

  11. PROFESSIONAL GUIDANCE: EXPERIENCE REPORT

    Directory of Open Access Journals (Sweden)

    Fabiana Pinto de Almeida Bizarria

    2014-05-01

    Full Text Available This article presents an account of a career guidance with a group of five teenagers ( 16 and 19 , students of pre-university preparatory course offered by a public university in the state of Ceará . The work group dynamics was from a privileged form of performance by allowing a greater enrichment of the discussions , considering the heterogeneity and diversity of the group . To address relevant issues in career guidance based on the theory Socio-Historical , a roadmap of action process was constructed from three axes . Each axis has worked in two sessions that match a date. The first axis called " meaning of choice," worked on thematic choice process . With regard to the axis " World of Work " was discussed idealizations and representations about the professions , the labor market and the vestibular / ESMS . Emotional links with the professions , skills and ideas on skills and information professions : Finally , the " self " axis, which contains the themes was developed .

  12. 2~6岁儿童牙科诊室行为影响因素研究%2~6 Years Old Children's Dental Clinic Behavior Influence Factor

    Institute of Scientific and Technical Information of China (English)

    赵娟

    2015-01-01

    Objective To study the effect of 2~6 years old children's dental clinic behavior factors. Methods Choose 71 cases of 2~6 years old children, were divided into group A (group) and group B (don't deserve to form); For children's emotional types and daily behavior characteristic, the children's mother dental anxiety, children's parent materials of oral health awareness. Results A, B two groups of children with age, emotional stress, significant difference (P<0.05);Parents of children with children's oral diseases responsibility, performance, treatment duration in the park and children's dental clinic behavior correlation (P<0.05). Conclusion The degree of parental responsibility, children in performance, treatment duration is 2~6 years old children's dental clinic behavior of the main factors.%目的:探讨影响2~6岁儿童牙科诊室行为的因素。方法选取71例2~6岁儿童,分为A组(配合组)、B组(不配合组);获取儿童的情绪类型以及日常的行为特点、儿童母亲的牙科焦虑状况、儿童家长的口腔健康意识等资料。结果A、B两组患儿的年龄、情绪应激性差异有统计学意义(P<0.05);家长对儿童口腔疾病的责任承担度、患儿入园表现、治疗持续时间与儿童的牙科诊室行为存在相关性(P<0.05)。结论家长的责任承担度、患儿入园表现、治疗的持续时间是影响2~6岁儿童牙科诊室行为的主要因素。

  13. American Dental Hygienists' Association

    Science.gov (United States)

    ... Resources Student Resources National Exam Student Advisor Resources Dental Hygiene Programs Scholarships and Grants Research Center Transforming Dental Hygiene Education Advocacy Practice Issues Direct Access Scope ...

  14. Implications of apixaban for dental treatments

    Science.gov (United States)

    Albaladejo, Alberto

    2016-01-01

    Background Anticoagulation therapy is used in several conditions to prevent or treat thromboembolism. Recently, new oral anticoagulants have been introduced as alternatives to warfarin and acenocoumarol. In Europe, the European Medicines Agency has approved dabigatran, rivaroxaban and apixaban. Their advantages include: predictable pharmacokinetics, drug interactions and limited food, rapid onset of action and short half-life. However, they lack a specific reversal agent. Material and Methods A literature search was conducted through November 2015 for publications in the ISI Web of Knowledge, PubMed, Scopus and Cochrane Library using the keywords “apixaban”, “rivaroxaban”, “dabigatran”, “new oral anticoagulants”, “dental treatment” and “dental implications”. We included studies published in English and Spanish over the last 10 years. Results Apixaban has been recently introduced in the daily medical practices for the control of thromboembolism. The number of patients taking apixaban is increasing. Management of patients on anticoagulation therapy requires that dentists can accurately assess the patient prior to dental treatments. It is important for dentists to have a sound understanding of the mechanisms of action and management guidelines for patients taking new oral anticoagulants. Conclusions The dentist should consider carefully the management of patients on apixaban. This paper sets out a clinical guidance of dental practitioners treating these patients. There is a need for further clinical studies in order to establish more evidence-based guidelines for dental patients requiring apixaban. Key words:Apixaban, new oral anticoagulants, dental treatment. PMID:27957279

  15. Dental Fear among Medical and Dental Undergraduates

    Directory of Open Access Journals (Sweden)

    H. Hakim

    2014-01-01

    Full Text Available Objective. To assess the prevalence and level of dental fear among health related undergraduates and to identify factors causing such fear using Kleinknecht’s Dental Fear Survey (DFS questionnaire. Methods. Kleinknecht’s DFS questionnaire was used to assess dental fear and anxiety among the entire enrollment of the medical and dental undergraduates’ of the University of Malaya. Results. Overall response rate was 82.2%. Dental students reported higher prevalence of dental fear (96.0% versus 90.4%. However, most of the fear encountered among dental students was in the low fear category as compared to their medical counterpart (69.2 versus 51.2%. Significantly more medical students cancelled dental appointment due to fear compared to dental students (P=0.004. “Heart beats faster” and “muscle being tensed” were the top two physiological responses experienced by the respondents. “Drill” and “anesthetic needle” were the most fear provoking objects among respondents of both faculties. Conclusion. Dental fear and anxiety are a common problem encountered among medical and dental undergraduates who represent future health care professionals. Also, high level of dental fear and anxiety leads to the avoidance of the dental services.

  16. Dental students--dental advocates.

    Science.gov (United States)

    Bensch, Brittany

    2010-01-01

    Student advocacy and involvement in the political process is built into the structure of the American Student Dental Association (ASDA), especially in its Legislative Grassroots Network and an internal communication network among students to ensure political awareness. Students are concerned with such issues as a universally accepted, non-patient-based licensure process, mid-level providers, loan availability and tax deductibility, financial support for schools, and service early in one's professional career (giving forward rather than giving back). Through collaboration with the American Dental Education Association and with many state associations, students participate in lobbying, awareness campaigns, and behind the scenes as legislative aids. Although students share the same love for the profession that animates established practitioners, they are perceived by legislators as being different. Students are involved in the legislative process because it represents their future.

  17. Dental Care Utilization among North Carolina Rural Older Adults

    Science.gov (United States)

    Arcury, Thomas A.; Savoca, Margaret R.; Anderson, Andrea M.; Chen, Haiying; Gilbert, Gregg H.; Bell, Ronny A.; Leng, Xiaoyan; Reynolds, Teresa; Quandt, Sara A.

    2012-01-01

    Objectives This analysis delineates the predisposing, need, and enabling factors that are significantly associated with regular and recent dental care in a multi-ethnic sample of rural older adults. Methods A cross-sectional comprehensive oral health survey conducted with a random, multi-ethnic (African American, American Indian, white) sample of 635 community-dwelling adults aged 60 years and older was completed in two rural southern counties. Results Almost no edentulous rural older adults received dental care. Slightly more than one-quarter (27.1%) of dentate rural older adults received regular dental care and slightly more than one-third (36.7%) received recent dental care. Predisposing (education) and enabling (regular place for dental care) factors associated with receiving regular and recent dental care among dentate participants point to greater resources being the driving force in receiving dental care. Contrary to expectations of the Behavioral Model of Health Services, those with the least need (e.g., better self-rated oral health) received regular dental care; this has been referred to as the Paradox of Dental Need. Conclusions Regular and recent dental care are infrequent among rural older adults. Those not receiving dental care are those who most need care. Community access to dental care and the ability of older adults to pay for dental care must be addressed by public health policy to improve the health and quality of life of older adults in rural communities. PMID:22536828

  18. The history of dental hygiene in South Korea.

    Science.gov (United States)

    Mann, Nancy K

    2011-01-01

    This historical narrative highlights the origin and development of the dental hygiene profession in South Korea. The legacy of early American missionaries to Korea includes profound and long-lasting contributions in medicine, education and theology. Many of Korea's top universities today have their roots in the missionary schools of the late nineteenth century, including Yonsei University, home of the first dental hygiene program in Korea. From Yonsei in Seoul, the dental hygiene profession spread throughout the country, includingtheAmerican missionary-based program in Kwangju in 1977. Contributions included clinical and didactic education, as well as professional leadership and development. American dental missionaries developed the profession of dental hygiene in Korea, and provided guidance to Korean dentists and hygienists for its growth and expansion.

  19. European Universities' Guidance on Research Integrity and Misconduct.

    Science.gov (United States)

    Aubert Bonn, Noémie; Godecharle, Simon; Dierickx, Kris

    2017-02-01

    Research integrity is imperative to good science. Nonetheless, many countries and institutions develop their own integrity guidance, thereby risking incompatibilities with guidance of collaborating institutions. We retrieved guidance for academic integrity and misconduct of 18 universities from 10 European countries and investigated accessibility, general content, principles endorsed, and definitions of misconduct. Accessibility and content differ substantially between institutions. There are general trends of common principles of integrity and definitions of misconduct, yet differences remain. Parallel with previous research, we distinguish different approaches in integrity guidance; one emphasizes broad values of integrity, and the other details negative behaviors of misconduct. We propose that a balance between both approaches is necessary to preserve trust, meaning, and realism of guidance on research integrity.

  20. Practical implications of incentive systems are utilized by dental franchises.

    Science.gov (United States)

    Yavner, S B

    1989-01-01

    The success of any dental practice depends, among other factors, on the critical role of staff employees. In order to encourage desired staff behaviors, incentive systems can be designed for employee dentists, assistants/hygienists and managers. A survey of dental franchises was conducted in 1987 for the purpose of examining their incentive control systems. The specific incentives employed by these dental franchises for their employees are analyzed. The implications of these incentive systems used by dental franchise organizations for all dental practices are then discussed.

  1. Dental erozyon

    NARCIS (Netherlands)

    Özen, B.; Yönel, N.; Çetiner, S.

    2015-01-01

    Dental erozyon, plak içermeyen diş yüzeyleri üzerinde içsel ve dışsal asitlerin veya şelatların etkileriyle oluşan kimyasal bir aşınmadır. İçsel ve/veya dışsal kaynaklar nedensel faktörler olarak tanımlanırken tükürük ve pelikıl gibi biyolojik faktörler, yeme ve içme alışkanlıkları ve ağız hijyeni

  2. Health promotion and dental caries.

    Science.gov (United States)

    Maltz, Marisa; Jardim, Juliana Jobim; Alves, Luana Severo

    2010-01-01

    The central idea of the Brazilian health system is to prevent the establishment of disease or detect it as early as possible. Prevention and treatment of dental caries are related to behavioral factors, including dietary and oral hygiene habits, which are related to many chronic diseases. Dental health promotion therefore should be fully integrated into broadly based health-promoting strategies and actions such as food and health policies, and general hygiene (including oral hygiene), among others. For decades, a linear relationship between sugar consumption and caries has been observed. Recent data has indicated that this relationship is not as strong as it used to be before the widespread use of fluoride. However, diet is still a key factor acting in the carious process. Oral hygiene is a major aspect when it comes to caries, since dental biofilm is its etiological factor. Oral hygiene procedures are effective in controlling dental caries, especially if plaque removal is performed adequately and associated with fluoride. An alternative to a more efficient biofilm control in occlusal areas is the use of dental sealants, which are only indicated for caries-active individuals. If a cavity is formed as a consequence of the metabolic activity of the biofilm, a restorative material or a sealant can be placed to block access of the biofilm to the oral environment in order to prevent caries progress. The prevention of dental caries based on common risk-factor strategies (diet and hygiene) should be supplemented by more disease-specific policies such as rational use of fluoride, and evidence-based dental health care.

  3. Health promotion and dental caries

    Directory of Open Access Journals (Sweden)

    Marisa Maltz

    2010-01-01

    Full Text Available The central idea of the Brazilian health system is to prevent the establishment of disease or detect it as early as possible. Prevention and treatment of dental caries are related to behavioral factors, including dietary and oral hygiene habits, which are related to many chronic diseases. Dental health promotion therefore should be fully integrated into broadly based health-promoting strategies and actions such as food and health policies, and general hygiene (including oral hygiene, among others. For decades, a linear relationship between sugar consumption and caries has been observed. Recent data has indicated that this relationship is not as strong as it used to be before the widespread use of fluoride. However, diet is still a key factor acting in the carious process. Oral hygiene is a major aspect when it comes to caries, since dental biofilm is its etiological factor. Oral hygiene procedures are effective in controlling dental caries, especially if plaque removal is performed adequately and associated with fluoride. An alternative to a more efficient biofilm control in occlusal areas is the use of dental sealants, which are only indicated for caries-active individuals. If a cavity is formed as a consequence of the metabolic activity of the biofilm, a restorative material or a sealant can be placed to block access of the biofilm to the oral environment in order to prevent caries progress. The prevention of dental caries based on common risk-factor strategies (diet and hygiene should be supplemented by more disease-specific policies such as rational use of fluoride, and evidence-based dental health care.

  4. Students' Perception of Important Teaching Behaviors in Classroom and Clinical Environments of a Community College Nursing and Dental Hygiene Education Program

    Science.gov (United States)

    Kimbrough-Walls, Vickie J.

    2012-01-01

    Student success is dependent on effective instruction. Yet, effective teaching is difficult to define and described differently by students, faculty, and administrators. Nursing and dental hygiene education programs require faculty to teach in both classroom and clinical environments. However, accreditation agencies for these programs mandate…

  5. Students' Perception of Important Teaching Behaviors in Classroom and Clinical Environments of a Community College Nursing and Dental Hygiene Education Program

    Science.gov (United States)

    Kimbrough-Walls, Vickie J.

    2012-01-01

    Student success is dependent on effective instruction. Yet, effective teaching is difficult to define and described differently by students, faculty, and administrators. Nursing and dental hygiene education programs require faculty to teach in both classroom and clinical environments. However, accreditation agencies for these programs mandate…

  6. Examining the cost-effectiveness of early dental visits.

    Science.gov (United States)

    Lee, Jessica Y; Bouwens, Thomas J; Savage, Matthew F; Vann, William F

    2006-01-01

    The subject of early dental visits as an integral dimension of anticipatory guidance and the related supporting scientific evidence for this concept is a critical and timely issue for the dental profession. The purpose of this paper was to review the scientific evidence and rationale for early dental visits. In theory, early dental visits can prevent disease and reduce costs. During the age 1 dental visit, there is strong emphasis on prevention and parents are given: (1) counseling on infant oral hygiene; (2) home and office-based fluoride therapies; (3) dietary counseling; and (4) information relative to oral habits and dental injury prevention. There is evidence that the early preventive visits can reduce the need for restorative and emergency care, therefore reducing dentally related costs among high-risk children. Preschool Medicaid children who had an early preventive dental visit by age 1 were more likely to use subsequent preventive services and experienced less dentally related costs. These finding have significant policy implications, and more research is needed to examine this effect in a low-risk population.

  7. Dental Care for Medicaid and CHIP Enrollees

    Science.gov (United States)

    ... Close Home > Medicaid > Benefits > Dental Care Dental Care Dental Care Dental Care for Medicaid and CHIP Enrollees Dental health ... services and opportunities and challenges to obtaining care. Dental Benefits for Children in Medicaid Medicaid covers dental ...

  8. Dental anxiety and dental attendance among 25-year-olds in Norway: time trends from 1997 to 2007

    Directory of Open Access Journals (Sweden)

    Skaret Erik

    2011-03-01

    Full Text Available Abstract Background So far, there are few studies considering the development of dental anxiety and dental attendance patterns across time in the general population of Norwegian adults. This study aimed to 1 determine the frequency of dental anxiety and regular dental attendance among 25-year-olds in Norway in 1997 and 2007, 2 to study the development (time trend of dental anxiety and the socio-behavioral distribution of dental anxiety from 1997 to 2007. Method Random samples of 1,190 and 8,000 25-yr-olds were drawn from the populations of three counties in Western Norway in 1997 and 2007, respectively. The eligible participants received questionnaires by mail including questions on socio-demographics, dental anxiety (DAS and dental attendance. Results In 1997, 11.5% males versus 23% females reported high dental anxiety (DAS ≥ 13. Corresponding figures in 2007 were 11.3% and 19.8%. The proportions who had attended yearly for a dental check-up during the past 5 years fell from 62% in 1997 (men 56.9% and women 66.4% to 44.6% (men 38.1% and women 48.6% in 2007. After controlling for potential confounding factors, the 25-year-olds were 1.4 times more likely to report dental anxiety in 1997 compared to 2007. The decrease was largely attributable to a lower mean DAS score among higher educated females in 2007 than in 1997. The discrepancy in dental anxiety between regular and non-regular dental attendees had decreased, largely attributable to a decline in dental anxiety among irregular dental attendees. Conclusion The study showed reduced dental anxiety and dental attendance among 25 year-olds in Norway from 1997 to 2007. This study points to the importance of controlling for possible changes in socio-demographic distributions when different cohorts are compared.

  9. Child Indicators: Dental Health.

    Science.gov (United States)

    Lewit, Eugene M.; Kerrebrock, Nancy

    1998-01-01

    Reviews measures of dental health in children and the evidence on child dental health. Although children's dental health has improved over the past two decades, many poor children do not receive necessary dental health services, and reasons for this failure are summarized. (SLD)

  10. PSD Increment Consumption Guidance

    Science.gov (United States)

    This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database. Some documents in the database are a scanned or retyped version of a paper photocopy of the original. Although we have taken considerable effort to quality assure the documents, some may contain typographical errors. Contact the office that issued the document if you need a copy of the original.

  11. Weaker dental enamel explains dental decay.

    Science.gov (United States)

    Vieira, Alexandre R; Gibson, Carolyn W; Deeley, Kathleen; Xue, Hui; Li, Yong

    2015-01-01

    Dental caries continues to be the most prevalent bacteria-mediated non-contagious disease of humankind. Dental professionals assert the disease can be explained by poor oral hygiene and a diet rich in sugars but this does not account for caries free individuals exposed to the same risk factors. In order to test the hypothesis that amount of amelogenin during enamel development can influence caries susceptibility, we generated multiple strains of mice with varying levels of available amelogenin during dental development. Mechanical tests showed that dental enamel developed with less amelogenin is "weaker" while the dental enamel of animals over-expressing amelogenin appears to be more resistant to acid dissolution.

  12. Severidade de cárie em crianças e relação com aspectos sociais e comportamentais Relationship between severity of dental caries and social and behavioral factors in children

    Directory of Open Access Journals (Sweden)

    Karen Glazer de Anselmo Peres

    2000-08-01

    Full Text Available OBJETIVO: Conhecer os fatores de risco para a alta severidade de cárie dentária em crianças de 12 anos de idade. MÉTODOS: Partindo-se dos resultados obtidos no levantamento epidemiológico em saúde bucal, realizado em Florianópolis, em 1995, comparou-se algumas condições sociais e de comportamento entre dois grupos com severidades distintas da cárie dentária: um com alto/muito alto (n=50 e outro com muito baixos níveis da doença (n=50, através da análise de regressão logística multivariada. RESULTADOS/CONCLUSÕES: Os fatores de risco para alta severidade de cárie foram a freqüência de consumo de doces e a renda familiar. Crianças que consumiram produtos cariogênicos duas a três vezes ao dia, todos os dias, apresentaram 4,41 vezes mais chances de ter alta severidade de cárie quando comparadas com as que consumiram esses produtos no máximo uma vez ao dia -- IC95% (OR = [1,18; 16,43]. A renda familiar foi o fator socioeconômico de maior importância. Crianças cuja renda familiar foi menor que 5 salários-mínimos tiveram 4,18 vezes mais chances de apresentar alta severidade de cárie quando comparadas com as que apresentaram renda familiar superior a 5 salários-mínimos -- IC95% (OR = [1,16; 15,03]. Novos estudos acerca dos determinantes gerais da cárie dentária, como os diferentes aspectos da vida dos indivíduos, deveriam ser desenvolvidos, a fim de contribuir para implantar medidas amplas de promoção de saúde bucal.OBJECTIVE: To identify social and behavioral conditions that could act as risk factors to the severity of dental caries in 12-year-old children. METHODS: Based on the oral health survey data obtained in Florianópolis, Brazil, in 1995, social and behavior conditions were compared between two 12-year-old children groups with dental caries with different severity: high and very high severity, and very low severity. In the interview, there were questions about each family were part of the interview

  13. Confirmatory study on the regression equation for children dental behavior in Beijing%口腔诊疗中儿童行为表现预测回归方程的验证

    Institute of Scientific and Technical Information of China (English)

    夏斌; 王春丽; 张笋

    2013-01-01

    Objective To test and verify the regression equation got before for children's dental behavior management problems(BMP).Methods The study group included 279 children aged 2-< 8 years who received dental treatment by 16 pediatric dentists in the Department of Pediatric Dentistry,Peking University School of and Hospital of Stomatology.Interviews were conducted with accompanying guardians and children's dental behavior was rated by a modified Venham's clinical anxiety scale and a cooperative behavior rating scale.The variables were put into the regression equation and the results were compared with their dental behavior scale.Results The accuracy rate of regression equation reached 84.2% (235/279),sensitivity was 0.613(95%CI:0.514-0.712) and specificity was 0.957 (95%CI:0.928-0.986).Conclusions The regression equation is characterized by its accuracy rate at a good level.Younger age,negative guardian expectations of the child's behavior during treatment,anxiety or shyness around strangers,and presence of toothache were four risk factors for children's dental BMP.%目的 检验既往研究获得的口腔诊疗中儿童行为表现预测回归方程的准确性,为该方程在临床的应用提供指导.方法 对北京大学口腔医学院·口腔医院儿童口腔科门诊279名2~<8岁首次就诊儿童的家长进行问卷调查,并对儿童就诊时的行为表现进行评价记录,将通过问卷调查获得的影响因素代入以往研究所获得的回归方程[logit(P)=-0.884a+1.212b+ 1.063c+0.918d +0.955,P:概率值;a:年龄;b:监护人预测;c:是否存在行为方面的问题;d:是否有牙痛史]进行验证,对得出的预测值与儿童实际行为表现间的异同进行比较.结果 回归方程预测准确率为84.2%(235/279);回归方程的敏感度为0.613(95% CI:0.514 ~0.712),特异度为0.957(95% CI:0.928 ~0.986),阳性预测值为0.877(95%CI:0.797 ~0.957),阴性预测值为0.832(95% CI:0.782 ~0.882).结论 该回归

  14. Guidance of Nonlinear Systems

    Science.gov (United States)

    Meyer, George

    1997-01-01

    The paper describes a method for guiding a dynamic system through a given set of points. The paradigm is a fully automatic aircraft subject to air traffic control (ATC). The ATC provides a sequence of way points through which the aircraft trajectory must pass. The way points typically specify time, position, and velocity. The guidance problem is to synthesize a system state trajectory which satisfies both the ATC and aircraft constraints. Complications arise because the controlled process is multi-dimensional, multi-axis, nonlinear, highly coupled, and the state space is not flat. In addition, there is a multitude of possible operating modes, which may number in the hundreds. Each such mode defines a distinct state space model of the process by specifying the state space coordinatization, the partition of the controls into active controls and configuration controls, and the output map. Furthermore, mode transitions must be smooth. The guidance algorithm is based on the inversion of the pure feedback approximations, which is followed by iterative corrections for the effects of zero dynamics. The paper describes the structure and modules of the algorithm, and the performance is illustrated by several example aircraft maneuvers.

  15. Dental caries and risk behavior factors among 12-year-old children in Dongguan city%东莞市12岁儿童龋病现状及其行为影响因素分析

    Institute of Scientific and Technical Information of China (English)

    谢培豪; 赵苏立

    2012-01-01

    目的:研究东莞市城乡12岁儿童恒牙龋病现状及其行为影响因素,分析两者之间的关系,为东莞市儿童口腔卫生保健工作提供科学依据.方法:采用多阶段、分层、整群、随机抽样的方法,抽取东莞市12岁城乡常住人口604人,检查全口恒牙龋病的患病状况并用问卷调查的方式收集全部受检儿童口腔健康行为等相关因素.结果:东莞市12岁儿童患龋率和龋均分别是40.89%和1.47.Logistic回归分析显示:口腔保健知识掌握越多的儿童其患龋率越低,食用水果的频率越高,儿童患龋率也相应增加.结论:东莞市12岁儿童患龋水平较高,口腔卫生行为较差,口腔保健知识掌握情况是致龋最为重要的影响因素,食用水果的频率是危险因素.%AIM; To investigate the relationships between dental caries and behavioral risk factors among 12-year-old children in Dongguan City. METHODS; The survey employed a multistage,stratified,clustered, randomized sampling method. Six hundred and four 12 - year - old children of urban and rural residency in DongGuan were enrolled to investigate the prevalence of dental caries. Oral health behavior and other relevant factors were collected by questionnaire survey. RESULTS: The incidence of caries and mean DMFT in 12-year-old children in DongGuan were 40.89% and 1.47 respectively. Logistic regression analysis showed that a negative correlation existed between oral health knowledge and the incidence of caries, and a positive correlation existed between the intake frequency of fruits and the incidence of caries among the children. CONCLUSION; The incidence of caries was high and oral health behaviour was poor among 12-year-old children in DongGuan city. Oral health knowledge was the most important influencing factor of dental caries. Fruit intake was also a risk factor of dental caries.

  16. Workforce re-entry for Japanese unemployed dental hygienists.

    Science.gov (United States)

    Usui, Y; Miura, H

    2015-02-01

    The aim of this study was to define the profile of unemployed dental hygienists who could be enticed to re-enter the workforce and the factors that could facilitate their re-entry into the dental field in Japan. The questionnaire was mailed with a postage-paid return envelope to a sample of 3095 licensed dental hygienists. A 50.4% response rate (S = 1477) was observed. The rate of working dental hygienists was 60.3% (n = 891), and of unemployed dental hygienists was 39.7% (n = 586). Of the latter, 31.9% (n = 187) stated intentions of returning to the workplace. The unemployed dental hygienists seeking employment were more often married and had more children, compared with working dental hygienists currently. This group also had significantly fewer total service years. Moreover, only 11.96% of them belonged to the Japan Dental Hygienists' Association, and 41.3% of those attended training workshops. According to their response, they perceived their top three major barriers to re-entry as 'lack sufficient dental hygiene skill', 'child rearing' and 'poor working atmosphere'. 'Flexibility in the work schedule' and 'location' were the most important factors for re-entry from their perspective. There were not many dental hygienists hoping to return to the dental field. The findings suggested that strategies to encourage non-practicing dental hygienists to re-entry should be emphasized in the areas of a flexible working atmosphere, easy access to information on how to return to practice and guidance on how to maintain professionalism during inactivity. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  17. Effect of social factors and oral health behaviors of grandparents on dental caries of children%社会因素和祖辈口腔健康行为对儿童龋病发生的影响

    Institute of Scientific and Technical Information of China (English)

    张侬; 刘贵敏; 陈周唤; 舒睿; 杨雅

    2009-01-01

    Objective: To explore the correlation between dental caries of children and social factors and oral health behaviors of grandparents, provide evidence for prevention of dental caries of children. Methmts: 1 052 children aged 3 ~ 5 years old from 10 nurseries and kindergartens in Longgang District were selected by random sampling, the caries incidence of deciduous teeth was detected, half of grandparents and 125 tested kindergartens' teachers were surveyed by a questionnaire, effect factors of deciduous teeth caries were analysed by logistic regression analysis. Results: The caries incidence of deciduous teeth was 58.61%, and the mean draft was 2.76, there was no difference between girls and boys (P > 0. 05) . There was correlation between oral health behaviors and dental visiting behavior of grandpar-ents, grandparents' care, education level, cognition degree of caries, education level of tested teachers and the caries incidence of deciduous teeth. Conclusion: The caries incidence of deciduous tooth of children is affected by oral health behaviors of grandparents and related social factors, the dental health education for them ought to be integrated into children dental caries prevention planning.%目的:研究社会因素和祖辈口腔健康行为与儿童龋病的关系,为儿童龋病预防工作提供依据.方法:参考世界卫生组织(第四版),采用随机、整群抽样的方法,抽取深圳市龙岗区10家托幼机构3~5岁幼儿1 052名,检查其乳牙列患龋情况.随机抽取50%受检幼儿祖辈以及125名受检托幼机构幼师进行问卷调查,Lojistic多因素回归分析乳牙龋病影响因子.结果:1 052名3~5岁幼儿乳牙患龋率58.61%,龋均2.76;性别差异无统计学意义(P>0.05).祖辈刷牙行为、牙科就诊行为等口腔健康行为与儿童龋病发生相关;祖辈看护、文化程度、受检幼师龋病知识认知度、文化程度等社会因素与儿童患龋有关.结论:祖辈口腔健康行为和相关

  18. Pediatric dental sedation: challenges and opportunities

    OpenAIRE

    Nelson TM; Xu Z.

    2015-01-01

    Travis M Nelson, Zheng Xu Department of Pediatric Dentistry, University of Washington, Seattle, WA, USA Abstract: High levels of dental caries, challenging child behavior, and parent expectations support a need for sedation in pediatric dentistry. This paper reviews modern developments in pediatric sedation with a focus on implementing techniques to enhance success and patient safety. In recent years, sedation for dental procedures has been implicated in a disproportionate number of cases th...

  19. Sprayed cells and polyelectrolyte films for biomaterial functionalization: the influence of physical PLL-PGA film treatments on dental pulp cell behavior.

    Science.gov (United States)

    Panayotov, Ivan V; Collart-Dutilleul, Pierre-Yves; Salehi, Hamideh; Martin, Marta; Végh, Attila; Yachouh, Jacques; Vladimirov, Boyan; Sipos, Péter; Szalontai, Balázs; Gergely, Csilla; Cuisinier, Frédéric J G

    2014-12-01

    Further development of biomaterials is expected as advanced therapeutic products must be compliant to good manufacturing practice regulations. A spraying method for building-up polyelectrolyte films followed by the deposition of dental pulp cells by spraying is presented. Physical treatments of UV irradiation and a drying/wetting process are applied to the system. Structural changes and elasticity modifications of the obtained coatings are revealed by atomic force microscopy and by Raman spectroscopy. This procedure results in thicker, rougher and stiffer film. The initially ordered structure composed of mainly α helices is transformed into random/β-structures. The treatment enhanced dental pulp cell adhesion and proliferation, suggesting that this system is promising for medical applications.

  20. Dental erozyon

    NARCIS (Netherlands)

    Özen, B.; Yönel, N.; Çetiner, S.

    2015-01-01

    Dental erozyon, plak içermeyen diş yüzeyleri üzerinde içsel ve dışsal asitlerin veya şelatların etkileriyle oluşan kimyasal bir aşınmadır. İçsel ve/veya dışsal kaynaklar nedensel faktörler olarak tanımlanırken tükürük ve pelikıl gibi biyolojik faktörler, yeme ve içme alışkanlıkları ve ağız hijyeni g

  1. DOES INCREASING DENTAL EDUCATION IMPROVE THE ORAL HYGIENE STATUS OF DENTAL STUDENTS?

    Directory of Open Access Journals (Sweden)

    Purnima V.

    2015-06-01

    Full Text Available OBJECTIVES: The purpose of this study was to assess the impact of increased knowledge acquired by the dental student in preventive aspects of dental education during his curriculum on his own health attitude, oral hygiene and gingival status. METHODS: A total of 240 students pursuing the undergraduate course (B.D.S at t he New Horizon Dental College and Research Institute, Bilaspur (Chhattisgarh were recruited for the study and divided into 4 groups based on the year of study. All participants answered a self - administered questionnaire and then this reported oral health behavior was compared to the actual clinical situation using the clinical parameters of Plaque Index, Gingival Index and Oral Hygiene Index simplified. RESULTS: The dental attitude became more positive and improved with each advancing year of education. Th ere was a statistically significant decrease in the CPI score (P=0.04 and OHI - S score (P=0.01 with each advancing year of education but plaque score was insignificant (P=0.06. Females showed better dental care than their male counterparts. CONCLUSION: T he oral health attitude and behavior of the dental students improved with increasing level of dental education. Preventive courses providing apt information on proper techniques of plaque control must be included in the first and second year curriculum of the dental students.

  2. A Dental Education Perspective on Dental Health Policy.

    Science.gov (United States)

    Morris, Alvin L.

    1985-01-01

    Two issues related to dental health policy are examined: the contribution of dental education to the process by which dental health policy is established, and the nature of dental education's response to established policies. (MLW)

  3. 监护人教育对儿童口腔就诊行为表现的影响%Effect of pretreatment education of the guardians of children' s behavior during dental treatment

    Institute of Scientific and Technical Information of China (English)

    夏斌; 张笋

    2012-01-01

    Objective: To assess the effect of the pretreatment education of the guardians on the children ' s and guardian' s behavior during dental treatment. Methods; The study group included 235 children aged 2-8 years who received dental treatment in the Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology. Interviews were conducted with accompanying guardians to collect information of children and their guardians, including parent's Corah Dental Anxiety Scale. The guardians were randomly divided into two groups. Group I was control group in which the guardians received a pamphlet about how to clean children' s teeth, group II was the education group in which the guardians received a pamphlet about how to help a child to cooperate with the dentist during dental treatment. Children' s heart rate was recorded at different time points; before the treatment, at local anesthesia (LA) , during the treatment and at the end of the treatment. Children' s dental behavior was rated by a modified Venham' s clinical anxiety scale and a cooperative behavior rating scale. The guardian' s tension was sorted into four levels and the characteristics of their language were recorded. Results; Among the 235 children, 131 were boys and 104 were girls with mean age of 4. 35 years, and 165 children were treated under LA. The group I included 129 children and 95 children were treated with LA. The group H included 106 children and 70 children were treated with LA. The children' s behavior in group II was better than that in group I (x2 = 4.56,P=0. 033). The guardians in group II were more relaxed than in group I at all the four times points: Beginning (Z = -2. 581, P = 0.01) , LA (Z = -3.613, P = 0.002) , Treatment (Z = -3.096, P=0.002) , Whole (Z = -3.042, P=0.002); and more positive language were used in group II at three times points; LA (%2 = 15.57,P<0. 001) , Treatment (x2 = 6.52,P =0.011) and Whole (x2 = 15.99,P <0.001). Conclusion: An education for

  4. COMMUNITY DENTAL HEALTH SURVEY TRAINING TO DENTAL HEALTH PERSONNEL

    OpenAIRE

    Sandra Fikawati; Ita Yulita

    2015-01-01

    Dentist and dental nurse as dental health personnel in community health center are spearheads in community dental health service. The effectiveness and efficacy of community dental health service needs updated adequate dental health knowledge and skill. One effort to assure the fulfillment of those needs is by providing community dental health survey training. This training aims at improving the skill and capability of dental health personnel to conduct dental health survey. The training cons...

  5. Benzodiazepines for conscious sedation in the dental office

    OpenAIRE

    Theodoro Weissheimert; Alexandre da Silveira Gerzson; Henderson Eduarth Schwengber; Angelo Menuci Neto

    2016-01-01

    Conventional behavioral conditioning techniques are usually suf fi cient for management of patients with fear and anxiety during dental treatment. When such techniques do not produce the expected results, dental anxiety can be managed using drug-based treatments known as conscious sedation. Anxiety can complicate dental procedures because of effects such as increased blood pressure, hyperventilation, and fainting. Medications such as benzodiazepines can be used to avoid these complicat...

  6. Guidance at the educational marketplace

    DEFF Research Database (Denmark)

    Lystbæk, Christian Tang

    in educational policies and institutions. As educational systems have expanded and, further, have been restructured with the expansion of choice opportunities since the 1980s, guidance has become prioritized as a form of counseling or coaching, which can support students. Thus, guidance has become an important...

  7. Guidance in the Secondary School

    Science.gov (United States)

    Kumar, V. Jurist Lional

    2010-01-01

    Secondary School Students face a lot of problems in their body as well as in mind due to puberty that tends to adolescence stage. Adolescence has peculiar characters of their own. They need proper Guidance and Counselling to tackle their own problems. Guidance is described as a counselling service to assist the individual in achieving self…

  8. Innovative Approaches to Career Guidance.

    Science.gov (United States)

    Freeman, Andrew R.

    A key part of a broad-based approach to career education in Australian schools is vocational/career guidance. Various vocational guidance programs have been developed for specific groups in Australian society, including work experience, caravans, and micrographics technology for the handicapped; pre-employment courses and a family education center…

  9. Final OSWER Vapor Intrusion Guidance

    Science.gov (United States)

    EPA is preparing to finalize its guidance on assessing and addressing vapor intrusion, which is defined as migration of volatile constituents from contaminated media in the subsurface (soil or groundwater) into the indoor environment. In November 2002, EPA issued draft guidance o...

  10. Interstitial guidance of cancer invasion.

    Science.gov (United States)

    Gritsenko, Pavlo G; Ilina, Olga; Friedl, Peter

    2012-01-01

    Cancer cell invasion into healthy tissues develops preferentially along pre-existing tracks of least resistance, followed by secondary tissue remodelling and destruction. The tissue scaffolds supporting or preventing guidance of invasion vary in structure and molecular composition between organs. In the brain, the guidance is provided by myelinated axons, astrocyte processes, and blood vessels which are used as invasion routes by glioma cells. In the human breast, containing interstitial collagen-rich connective tissue, disseminating breast cancer cells preferentially invade along bundled collagen fibrils and the surface of adipocytes. In both invasion types, physical guidance prompted by interfaces and space is complemented by molecular guidance. Generic mechanisms shared by most, if not all, tissues include (i) guidance by integrins towards fibrillar interstitial collagen and/or laminins and type IV collagen in basement membranes decorating vessels and adipocytes, and, likely, CD44 engaging with hyaluronan; (ii) haptotactic guidance by chemokines and growth factors; and likely (iii) physical pushing mechanisms. Tissue-specific, resticted guidance cues include ECM proteins with restricted expression (tenascins, lecticans), cell-cell interfaces, and newly secreted matrix molecules decorating ECM fibres (laminin-332, thrombospondin-1, osteopontin, periostin). We here review physical and molecular guidance mechanisms in interstitial tissue and brain parenchyma and explore shared principles and organ-specific differences, and their implications for experimental model design and therapeutic targeting of tumour cell invasion.

  11. Restructuring Guidance and Counseling Programs.

    Science.gov (United States)

    Snyder, Beverly A.; Daly, Timothy P.

    1993-01-01

    Briefly reviews counseling profession's call for revitalization and transformation in school counseling and guidance programs. Summarizes one school system's efforts during late 1980s and early 1990s to transform its program from services and crisis orientation into a comprehensive developmental model based on Myrick's developmental guidance and…

  12. RH Packaging Program Guidance

    Energy Technology Data Exchange (ETDEWEB)

    Washington TRU Solutions LLC

    2008-01-12

    The purpose of this program guidance document is to provide the technical requirements for use, operation, inspection, and maintenance of the RH-TRU 72-B Waste Shipping Package (also known as the "RH-TRU 72-B cask") and directly related components. This document complies with the requirements as specified in the RH-TRU 72-B Safety Analysis Report for Packaging (SARP), and Nuclear Regulatory Commission (NRC) Certificate of Compliance (C of C) 9212. If there is a conflict between this document and the SARP and/or C of C, the C of C shall govern. The C of C states: "...each package must be prepared for shipment and operated in accordance with the procedures described in Chapter 7.0, Operating Procedures, of the application." It further states: "...each package must be tested and maintained in accordance with the procedures described in Chapter 8.0, Acceptance Tests and Maintenance Program of the Application." Chapter 9.0 of the SARP tasks the Waste Isolation Pilot Plant (WIPP) Management and Operating (M&O) Contractor with assuring the packaging is used in accordance with the requirements of the C of C. Because the packaging is NRC-approved, users need to be familiar with Title 10 Code of Federal Regulations (CFR) §71.8, "Deliberate Misconduct." Any time a user suspects or has indications that the conditions of approval in the C of C were not met, the U.S. Department of Energy (DOE) Carlsbad Field Office (CBFO) shall be notified immediately. The CBFO will evaluate the issue and notify the NRC if required.In accordance with 10 CFR Part 71, "Packaging and Transportation of Radioactive Material," certificate holders, packaging users, and contractors or subcontractors who use, design, fabricate, test, maintain, or modify the packaging shall post copies of (1) 10 CFR Part 21, "Reporting of Defects and Noncompliance," regulations, (2) Section 206 of the Energy Reorganization Act of 1974, and (3) NRC Form 3, Notice to Employees. These documents must be posted in a

  13. RH Packaging Program Guidance

    Energy Technology Data Exchange (ETDEWEB)

    Washington TRU Solutions LLC

    2006-11-07

    The purpose of this program guidance document is to provide the technical requirements for use, operation, inspection, and maintenance of the RH-TRU 72-B Waste Shipping Package and directly related components. This document complies with the requirements as specified in the RH-TRU 72-B Safety Analysis Report for Packaging (SARP), and Nuclear Regulatory Commission (NRC) Certificate of Compliance (C of C) 9212. If there is a conflict between this document and the SARP and/or C of C, the C of C shall govern. The C of C states: "...each package must be prepared for shipment and operated in accordance with the procedures described in Chapter 7.0, Operating Procedures, of the application." It further states: "...each package must be tested and maintained in accordance with the procedures described in Chapter 8.0, Acceptance Tests and Maintenance Program of the Application." Chapter 9.0 of the SARP tasks the Waste Isolation Pilot Plant (WIPP) Management and Operating (M&O) Contractor with assuring the packaging is used in accordance with the requirements of the C of C. Because the packaging is NRC-approved, users need to be familiar with 10 Code of Federal Regulations (CFR) §71.8, "Deliberate Misconduct." Any time a user suspects or has indications that the conditions of approval in the C of C were not met, the U.S. Department of Energy (DOE) Carlsbad Field Office (CBFO) shall be notified immediately. CBFO will evaluate the issue and notify the NRC if required. In accordance with 10 CFR Part 71, "Packaging and Transportation of Radioactive Material," certificate holders, packaging users, and contractors or subcontractors who use, design, fabricate, test, maintain, or modify the packaging shall post copies of (1) 10 CFR Part 21, "Reporting of Defects and Noncompliance," regulations, (2) Section 206 of the Energy Reorganization Act of 1974, and (3) NRC Form 3, Notice to Employees. These documents must be posted in a conspicuous location where the activities subject to

  14. Dental Encounter System (DES)

    Data.gov (United States)

    Department of Veterans Affairs — Dental Encounter System (DES) is an automated health care application designed to capture critical data about the operations of VA Dental Services. Information on...

  15. Dental education in Malaysia.

    Science.gov (United States)

    Komabayashi, Takashi; Razak, Abdul Aziz Abdul; Bird, William F

    2007-12-01

    There was only one dental school in Malaysia until 1997 but five new schools have been established since 1998. This review provides information about dental education in Malaysia including; the history of dental education, the current dental school system and curriculum, and dental licensure. There are four public and two private dental schools in Malaysia. High school graduates are required to take the nationwide matriculation entrance examination or the Higher School Certificate (HSC) to apply for a dental degree programme. A five-year dental programme leads to the BDS or the DDS degree. National or state examinations are not required to practise dentistry. Currently, there are approximately 2,500 dentists, with a ratio of 1 dentist for every 10,000 people.

  16. Dental Care in Scleroderma

    Science.gov (United States)

    Dental Care in Scleroderma People living with scleroderma face unique challenges while trying to maintain their oral ... They are more likely to be affected by dental conditions such as small mouth, dry mouth, jaw ...

  17. Dental care - child

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/002213.htm Dental care - child To use the sharing features on ... and rinsing daily. It also includes having routine dental exams, and getting necessary treatments such as fluoride, ...

  18. AUTHORITARIANISM AND DENTAL CARIES.

    Science.gov (United States)

    in particular. If so, dental decay among nonauthoritarians might well progress further than among authoritarians. To determine whether or not there...is any relationship between dental decay and authoritarianism is the purpose of the present study. (Author)

  19. Dental Effluent Guidelines

    Science.gov (United States)

    Overview and documents for Dental Office Category regulation (40 CFR Part 441); comprising pretreatment standards for discharges of dental amalgam pollutants, including mercury, into publicly owned treatment works (POTWs).

  20. Dental Sealants Prevent Cavities

    Science.gov (United States)

    ... MMWR RSS VitalSigns RSS Error processing SSI file Dental Sealants Prevent Cavities Effective protection for children Language: ... more use of sealants and reimbursement of services. Dental care providers can Apply sealants to children at ...

  1. Smile dental journal

    National Research Council Canada - National Science Library

    "Smile dental journal is quarterly issued, peer-reviewed open access journal. Subject coverage is dentistry, dealing with all specialties of dentistry, its management, besides dental health related subjects...

  2. Behaviorism

    National Research Council Canada - National Science Library

    Moore, J

    2011-01-01

    .... Watson proposed an alternative: classical S-R behaviorism. According to Watson, behavior was a subject matter in its own right, to be studied by the observational methods common to all sciences...

  3. 75 FR 33169 - Dental Devices: Classification of Dental Amalgam, Reclassification of Dental Mercury, Designation...

    Science.gov (United States)

    2010-06-11

    ...-AG21 Dental Devices: Classification of Dental Amalgam, Reclassification of Dental Mercury, Designation of Special Controls for Dental Amalgam, Mercury, and Amalgam Alloy; Technical Amendment AGENCY: Food... classified dental amalgam as a class II device, reclassified dental mercury from class I to class II, and...

  4. Perceived dental needs and attitudes toward dental treatments in HIV-infected Thais.

    Science.gov (United States)

    Rungsiyanont, Sorasun; Vacharotayangul, Piamkamon; Lam-Ubol, Aroonwan; Ananworanich, Jintanat; Phanuphak, Praphan; Phanuphak, Nittaya

    2012-01-01

    Despite the advancement in highly active antiretroviral therapy and improved health status of HIV-infected individuals, dental problems are still affecting their life and well-beings. We aimed to establish the prevalence of oral and dental complaints among HIV-infected patients, the prevalence of delayed access to dental service, and factors related with delayed access to dental service. A cross-sectional study using self-report questionnaire completed by the HIV-positive subjects was conducted at the largest HIV research clinic in Thailand during 2009-2010. Of all 299 subjects (28.6% males, 71% females, and 0.4% sex change from male to female: ages ranged from 22 to 59 years [mean 36.7±5.53)]), 84.3% reported of having past or present illnesses or problems related to the dental or oral conditions. The most reported problems were dental hypersensitivity (93.3%), bleeding from the gum (92.1%), and having dental caries (65.9%). Two-hundred and forty-two subjects (80.9%) would not disclose their HIV status when seeing a dentist. The most cited reasons of such behavior were their personal right whether to reveal or not, and being afraid of not receiving dental treatment from the dentists or staffs (51.7 and 40.9%, respectively). It is important to note that HIV-subjects admitted to having fear of being discriminated by the dental staffs even if they trusted their dentists as having high morality. In conclusion, our HIV-subjects had good basic knowledge of oral health with regard to HIV infection, experienced common dental problems, and wished to have accesses to HIV-dental specialist services, if possible.

  5. Dental Practice Management

    OpenAIRE

    Gheorghe Raftu

    2016-01-01

    the population. Private dental practices in Romania require personnel specialized in dental management. Success in dentistry depends, on the one hand, on the management of clinical aspects, and equallyon the efficient management of the dental practice. Patient satisfaction is influenced by factors related to the communication between the physicianand the patient, technical competence and by the environment provided by dental practice. The realization of the paper followed a review...

  6. Pandemic influenza guidance for corporations.

    Science.gov (United States)

    2011-06-01

    The purpose of this guidance document is to assist members of the American College of Occupational and Environmental Medicine (ACOEM), and the organizations for which they work, in managing the impact of a pandemic of influenza or other contagious respiratory disease on patients, employees, and business. This guidance document outlines actions to take before and during an influenza pandemic on the basis of two main strategies: (1) reducing the spread of the virus within facilities; and (2) providing medical care and medical surveillance to client/patient populations. Facilities in which ACOEM members serve include government agencies and the military, universities, and corporations, which generally have multiple locations/sites and their own medical staff, with members responsible for medical care and disease control. This guidance is for organizations with outpatient occupational medicine services, to be used as appropriate. Medical centers should also use guidance that addresses additional employee and external patient care needs.1–3 The ACOEM fully supports implementation of occupational influenza programs that conform with guidance from the Centers for Disease Control and Prevention (CDC), with other guidance from the US Department of Health and Human Services (DHHS), and Occupational Safety and Health Administration (OSHA) regulations and guidance.

  7. Stress Among Dental Students

    NARCIS (Netherlands)

    A.M. Alzahem (Abdullah)

    2015-01-01

    markdownabstractAbstract Dental students are facing many stressors in dental education, causing many negative outcomes. The most common are the exams and the clinical requirements. We suggest exposing the dental students to patient care as early as possible in their curriculum. This can help to bal

  8. [Dental records and responsibility

    NARCIS (Netherlands)

    Brands, W.G.

    2006-01-01

    Dental records are more than a small part of the bookkeeping. In most dental practises, keeping records is the task of a dental assistant. In civil court, the dentist is in most countries liable for the mistakes of his employees. In disciplinary court however there may be doubt whether the dentist i

  9. Stress Among Dental Students

    NARCIS (Netherlands)

    A.M. Alzahem (Abdullah)

    2015-01-01

    markdownabstractAbstract Dental students are facing many stressors in dental education, causing many negative outcomes. The most common are the exams and the clinical requirements. We suggest exposing the dental students to patient care as early as possible in their curriculum. This can help to bal

  10. Dental Assistant, Advanced. Revision

    Science.gov (United States)

    1989-02-01

    a jaw fracture, leukemia, dental caries, and periodontal disease. Dental diabetes mellitus , rheumatic fever, allergies, car- disease can be prevented...Dentistry ........................ 4-1 5. Oral Surgery, Endodontics, and Periodontics ................ 5-1 6. Prosthodontics...Diagnosis Periodontics Medical clinics may have branch clinics subor- Operative Dentistry Preventive Dentistry dinate to them. Although dental

  11. Curricular Guidelines for Dental Hygiene Care for the Handicapped.

    Science.gov (United States)

    Journal of Dental Education, 1984

    1984-01-01

    The American Association of Dental Schools' guidelines for dental hygiene curriculum cover the scope and definitions of care for the handicapped, interrelationships between disciplines and courses, a curriculum overview, primary educational goals, prerequisites, a core content outline, specific behavioral objectives, sequencing, faculty, and…

  12. Curriculum Guidelines for Periodontics for Dental Hygiene Programs.

    Science.gov (United States)

    Journal of Dental Education, 1986

    1986-01-01

    American Association of Dental Schools guidelines consist of an introduction to the field and its interrelationships with other fields of dental hygiene; an overview of the curriculum; outlines of primary educational goals, prerequisites, and specific content-related and clinical behavioral objectives; and recommendations concerning sequencing,…

  13. Stimulating the demand for dental care: An application of Ajzen and Fishbein's theory of reasoned action.

    NARCIS (Netherlands)

    Hoogstraten, J.; de Haan, W.; ter Horst, G.

    1985-01-01

    Applied I. Ajzen and M. Fishbein's (1980) attitude-behavior model to the problem of stimulating the demand for dental care with 329 members (aged 21-50 yrs) of health insurance companies who had not received regular dental treatment and/or certificate of dental fitness for at least 2 1/2 yrs. Applyi

  14. ADM guidance-Ceramics: all-ceramic multilayer interfaces in dentistry.

    Science.gov (United States)

    Lohbauer, Ulrich; Scherrer, Susanne S; Della Bona, Alvaro; Tholey, Michael; van Noort, Richard; Vichi, Alessandro; Kelly, J Robert; Cesar, Paulo F

    2017-06-01

    This guidance document describes the specific issues involved in dental multilayer ceramic systems. The material interactions with regard to specific thermal and mechanical properties are reviewed and the characteristics of dental tooth-shaped processing parameters (sintering, geometry, thickness ratio, etc.) are discussed. Several techniques for the measurement of bond quality and residual stresses are presented with a detailed discussion of advantages and disadvantages. In essence no single technique is able to describe adequately the all-ceramic interface. Invasive or semi-invasive methods have been shown to distort the information regarding the residual stress state while non-invasive methods are limited due to resolution, field of focus or working depth. This guidance document has endeavored to provide a scientific basis for future research aimed at characterizing the ceramic interface of dental restorations. Along with the methodological discussion it is seeking to provide an introduction and guidance to relatively inexperienced researchers. Copyright © 2017 The Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.

  15. Relationship between untreated dental caries and dental neglect among mentally handicapped children: A cross-sectional study

    Directory of Open Access Journals (Sweden)

    Amit Kumar

    2015-01-01

    Full Text Available Introduction: Dental caries is the most prevalent disease among mentally handicapped (MH children worldwide. Dental neglect may throw light on complex relationships between individual behavior, environmental factors, and dental caries in children. Objectives: The objective was to assess the prevalence and severity of untreated dental caries and to explore the relationship between untreated dental caries and dental neglect among MH children and healthy children in Bangalore city. Materials and Methods: A cross-sectional comparative study was conducted on 130, 6-17 years MH and 152 healthy school children in Bangalore city. A questionnaire on the children′s sociodemographic background, oral health-related behaviors, and dental neglect scale was completed by the parents. Caries was assessed according to World Health Organization criteria (1997. Odontogenic infections were recorded using the pufa/PUFA index. Statistical tests such as Mann-Whitney U-test, Chi-square test, Spearmans correlation, and step-wise linear regression were performed at significance level P < 0.05. Results: Dental caries was present in 89.2% of MH children as compared with 88.15% of the healthy children. Caries experience significantly correlated with consequences of untreated dental caries in both the groups (P = 0.001. No statistical significant correlation was observed between dental neglect and dental caries experience and its consequences in both the groups. Conclusions: High prevalence of dental caries and dental neglect in both the groups calls for an integrated approach. Oral health promotion and intervention programs should be targeted and concentrated toward these risk groups.

  16. RH Packaging Program Guidance

    Energy Technology Data Exchange (ETDEWEB)

    Washington TRU Solutions, LLC

    2003-08-25

    The purpose of this program guidance document is to provide technical requirements for use, operation, inspection, and maintenance of the RH-TRU 72-B Waste Shipping Package and directly related components. This document complies with the requirements as specified in the RH-TRU 72-B Safety Analysis Report for Packaging (SARP), and Nuclear Regulatory Commission (NRC) Certificate of Compliance (C of C) 9212. If there is a conflict between this document and the SARP and/or C of C, the SARP and/or C of C shall govern. The C of C states: ''...each package must be prepared for shipment and operated in accordance with the procedures described in Chapter 7.0, ''Operating Procedures,'' of the application.'' It further states: ''...each package must be tested and maintained in accordance with the procedures described in Chapter 8.0, ''Acceptance Tests and Maintenance Program of the Application.'' Chapter 9.0 of the SARP tasks the Waste Isolation Pilot Plant (WIPP) Management and Operating (M&O) contractor with assuring the packaging is used in accordance with the requirements of the C of C. Because the packaging is NRC approved, users need to be familiar with 10 CFR {section} 71.11, ''Deliberate Misconduct.'' Any time a user suspects or has indications that the conditions of approval in the C of C were not met, the Carlsbad Field Office (CBFO) shall be notified immediately. CBFO will evaluate the issue and notify the NRC if required. This document details the instructions to be followed to operate, maintain, and test the RH-TRU 72-B packaging. This Program Guidance standardizes instructions for all users. Users shall follow these instructions. Following these instructions assures that operations are safe and meet the requirements of the SARP. This document is available on the Internet at: ttp://www.ws/library/t2omi/t2omi.htm. Users are responsible for ensuring they are using the current

  17. CAREER GUIDANCE EXPERIENCE ABROAD

    Directory of Open Access Journals (Sweden)

    Sergey N. Tolstoguzov

    2015-01-01

    Full Text Available The aim of this paper is to describe the experience of careeroriented activities carried out with students of schools in developed and developing countries. Career Guidance in Russia, despite the vast experience of its implementation, is experiencing serious difficulties. In this regard, it is important to take into account the international experience career-oriented activities, such as in the developed countries of North America and the European Union as well as in several Asian countries with rapidly growing economies and a large demographic potential, taking into account the best variants for the Russian education system. Methods. The experience of career-oriented work undertaken with pupils of the USA, Canada, Israel, France, UK, Germany, Denmark, Sweden, Japan, Singapore, China and India is shown on the basis of the comparative analysis of different publications and information sources. The author has made an attempt to generalize the principles of psycho-pedagogical and administrative assistance in professional self-determination of senior pupils abroad. Scientific novelty. The approaches to career-oriented activities in countries with different levels of economic development are compared for the first time. Some principles are revealed. Firstly, the higher the income level per capita in the country, the greater attention is given to vocational guidance. The politics in the developed countries is based on interests of the individual: children’s acquaintance with the world of professions begins already at younger school and the moment of definitive selfdetermination is postponed till the end of their senior stage of education; the possibility of direction change of professional preparation in case of detection of discrepancy of qualities of the pupil to originally selected profile is provided. Career-oriented activity in developing countries, on the contrary, is rigidly coordinated to requirements of economy and a labour market

  18. [Adherence to oral hygiene and dental self-care].

    Science.gov (United States)

    Poplinger, A

    2010-04-01

    illustrates, through a comprehensive literature review of theories, models and researches, the contemporary methods for promoting adherence to oral hygiene, dental Self-Care and treatment. Using the combination of a survey from a select sample of specialists in the field of Dentistry, and the conclusions inferred from studies reviewed, I was able to determine how investment in the Bio-Psycho-Social approach would improve patient satisfaction from their doctors and outcomes of the treatment, shorten the duration of treatment, consume only little resources, improve dental health of patients and prevent repetitive visits to the dentists clinics. At the same time, despite the fact that dentistry practitioners acknowledge the importance of patient's adherence and take active measures such as talks, praises, guidance and providing information, most of them don't seem to comprehend interfusion of family members or friends as an integral part of the treatment. Moreover, their overall feeling is of incompetence when regarding dealing with un-adherent patients. Therefore, maybe there is room for providing dentists and staff with seminars, conventions etc. about the latest novelties on the subject. In conclusion, enhancing dental patient's adherence to health behavior is a domain mainly under the responsibility of the dentist, but also of his staff. As elaborated in the article, the measures for doing so are: 1. Information- the dentist should guide patients about the different methods for maintaining oral hygiene, explain how proper adherence benefits positive treatment outcome, and provide a broad and informative picture of the patient's specific problem. 2. Positive rapport - the need for establishing a good relationship between the doctor and his patients is crucial for attaining effective and satisfactory treatment outcomes. No doubt that this matter depends upon the personality and character of both the doctor and the patient, but using positive verbal reinforcements, symbolic

  19. Oral health quality-of-life among undergraduate Malaysian dental students

    National Research Council Canada - National Science Library

    Harsh, P; Arunima, C; Manoj, K

    2012-01-01

    .... Malaysian dental students of Melaka Manipal Medical College, Manipal campus, Manipal University, Manipal answered a structured questionnaire recording the demographic characteristics, behavioral...

  20. CDM Convective Forecast Planning guidance

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The CDM Convective Forecast Planning (CCFP) guidance product provides a foreast of en-route aviation convective hazards. The forecasts are updated every 2 hours and...

  1. Response to work activity guidance

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This memorandum is concerning the request from the FY95 Platte-Kansas Rivers Ecosystem Work Activity Guidance for refuge managers to review the purposes of refuges...

  2. TSCA Inventory Policy and Guidance

    Science.gov (United States)

    A list of numerous policy statements and guidance documents on how to identify certain chemical substances for the purpose of assigning unique and unambiguous descriptions tor each substance listed on the Inventory.

  3. Guidance Systems of Fighter Aircraft

    Directory of Open Access Journals (Sweden)

    K.N. Rajanikanth

    2005-07-01

    Full Text Available Mission performance of a fighter aircraft is crucial for survival and strike capabilities in todays' aerial warfare scenario. The guidance functions of such an aircraft play a vital role inmeeting the requirements and accomplishing the mission success. This paper presents the requirements of precision guidance for various missions of a fighter aircraft. The concept ofguidance system as a pilot-in-loop system is pivotal in understanding and designing such a system. Methodologies of designing such a system are described.

  4. Guidance Systems of Fighter Aircraft

    OpenAIRE

    K.N. Rajanikanth; Rao, R S; P. S. Subramanyam; Ajai Vohra

    2005-01-01

    Mission performance of a fighter aircraft is crucial for survival and strike capabilities in todays' aerial warfare scenario. The guidance functions of such an aircraft play a vital role inmeeting the requirements and accomplishing the mission success. This paper presents the requirements of precision guidance for various missions of a fighter aircraft. The concept ofguidance system as a pilot-in-loop system is pivotal in understanding and designing such a system. Methodologies of designing s...

  5. Guidance molecules in lung cancer

    OpenAIRE

    Nasarre, Patrick; Potiron, Vincent; Drabkin, Harry; Roche, Joëlle

    2010-01-01

    Guidance molecules were first described in the nervous system to control axon outgrowth direction. They are also widely expressed outside the nervous system where they control cell migration, tissue development and establishment of the vascular network. In addition, they are involved in cancer development, tumor angiogenesis and metastasis. This review is primarily focused on their functions in lung cancer and their involvement in lung development is also presented. Five guidance molecule fam...

  6. Occlusal considerations for dental implant restorations.

    Science.gov (United States)

    Bergmann, Ranier H

    2014-01-01

    When placed, dental implants are put into an ever-changing oral environment in which teeth can continue to migrate. Yet, the implants themselves are ankylosed. This can lead to occlusal instability. Teeth may continue to erupt, leaving the implants in infraocclusion. Teeth may move mesially away from an implant, requiring modification to close an open contact point. Friction in the connection between teeth and implants can lead to intrusion of teeth and damage to the periodontal attachment apparatus. Implant occlusion with shallow incisal guidance minimizes lateral and tipping forces. Cross-arch stabilization allows the best distribution of occlusal forces. The choice of restorative materials influences long-term occlusal stability.

  7. Behaviorism

    Science.gov (United States)

    Moore, J.

    2011-01-01

    Early forms of psychology assumed that mental life was the appropriate subject matter for psychology, and introspection was an appropriate method to engage that subject matter. In 1913, John B. Watson proposed an alternative: classical S-R behaviorism. According to Watson, behavior was a subject matter in its own right, to be studied by the…

  8. Behaviorism

    Science.gov (United States)

    Moore, J.

    2011-01-01

    Early forms of psychology assumed that mental life was the appropriate subject matter for psychology, and introspection was an appropriate method to engage that subject matter. In 1913, John B. Watson proposed an alternative: classical S-R behaviorism. According to Watson, behavior was a subject matter in its own right, to be studied by the…

  9. Effects of Video Interaction Guidance on early childhood teachers

    NARCIS (Netherlands)

    Fukkink, R.G.; Tavecchio, L.W.C.

    2010-01-01

    An experimental study showed that a video feedback intervention improved the interaction skills of early childhood education and care teachers. The teachers who had received the Video Interaction Guidance training appeared more stimulating in their behavior, were more sensitive and more verbally sti

  10. PROVIDING DENTAL CARE FOR CHILDREN WITH AUTISM SPECTRUM DISORDERS

    Directory of Open Access Journals (Sweden)

    Diana MURARU

    2017-06-01

    Full Text Available Given the increasing prevalence of autism spectrum disorders, it is realistic to assume that dental professionals are likely to treat individuals with this diagnosis. Understanding the complexities of this disorder and its behavioral manifestations is indispensable for dentists. The present article presents several characteristics of autism spectrum disorder that impact dental interventions, along with medical and behavioral alternatives to better manage the dental problems of children with autism spectrum disorder. A multidisciplinary approach and family support are important for planning a dental intervention for these patients in order to avoid anxiety. Knowledge on autism, the dentist-patient relationship and the individual preparation for dental interventions is useful for constructing a controllable medical experience

  11. Guidance Services for Children and a Right to Education Law: Results of a Longitudinal Study.

    Science.gov (United States)

    Anastas, Jeane W.; And Others

    1983-01-01

    Examines guidance services for young children with emotional and behavioral problems in school. A longitudinal study followed the children (N=527) from preschool screening through grade three, and found that over one quarter of the children had used guidance services. Differences emerged between children with transitory and persistent problems.…

  12. The dental plaque microbiome in health and disease.

    Science.gov (United States)

    Peterson, Scott N; Snesrud, Erik; Liu, Jia; Ong, Ana C; Kilian, Mogens; Schork, Nicholas J; Bretz, Walter

    2013-01-01

    Dental decay is one of the most prevalent chronic diseases worldwide. A variety of factors, including microbial, genetic, immunological, behavioral and environmental, interact to contribute to dental caries onset and development. Previous studies focused on the microbial basis for dental caries have identified species associated with both dental health and disease. The purpose of the current study was to improve our knowledge of the microbial species involved in dental caries and health by performing a comprehensive 16S rDNA profiling of the dental plaque microbiome of both caries-free and caries-active subjects. Analysis of over 50,000 nearly full-length 16S rDNA clones allowed the identification of 1,372 operational taxonomic units (OTUs) in the dental plaque microbiome. Approximately half of the OTUs were common to both caries-free and caries-active microbiomes and present at similar abundance. The majority of differences in OTU's reflected very low abundance phylotypes. This survey allowed us to define the population structure of the dental plaque microbiome and to identify the microbial signatures associated with dental health and disease. The deep profiling of dental plaque allowed the identification of 87 phylotypes that are over-represented in either caries-free or caries-active subjects. Among these signatures, those associated with dental health outnumbered those associated with dental caries by nearly two-fold. A comparison of this data to other published studies indicate significant heterogeneity in study outcomes and suggest that novel approaches may be required to further define the signatures of dental caries onset and progression.

  13. The dental plaque microbiome in health and disease.

    Directory of Open Access Journals (Sweden)

    Scott N Peterson

    Full Text Available Dental decay is one of the most prevalent chronic diseases worldwide. A variety of factors, including microbial, genetic, immunological, behavioral and environmental, interact to contribute to dental caries onset and development. Previous studies focused on the microbial basis for dental caries have identified species associated with both dental health and disease. The purpose of the current study was to improve our knowledge of the microbial species involved in dental caries and health by performing a comprehensive 16S rDNA profiling of the dental plaque microbiome of both caries-free and caries-active subjects. Analysis of over 50,000 nearly full-length 16S rDNA clones allowed the identification of 1,372 operational taxonomic units (OTUs in the dental plaque microbiome. Approximately half of the OTUs were common to both caries-free and caries-active microbiomes and present at similar abundance. The majority of differences in OTU's reflected very low abundance phylotypes. This survey allowed us to define the population structure of the dental plaque microbiome and to identify the microbial signatures associated with dental health and disease. The deep profiling of dental plaque allowed the identification of 87 phylotypes that are over-represented in either caries-free or caries-active subjects. Among these signatures, those associated with dental health outnumbered those associated with dental caries by nearly two-fold. A comparison of this data to other published studies indicate significant heterogeneity in study outcomes and suggest that novel approaches may be required to further define the signatures of dental caries onset and progression.

  14. Phenomenon of "contact guidance" on the surface with nano-micro-groove-like pattern and cell physiological effects

    Institute of Scientific and Technical Information of China (English)

    ZHOU Feng; YUAN Lin; HUANG He; CHEN Hong

    2009-01-01

    The topography of material surface has important influence on cell behavior and physiological functions. Groove-like pattern has drawn much attention among various patterns,due to the phenomenon of "contact guidance" induced by this kind of topography. This review mainly focuses on "contact guidance" formation as well as its influence on cell behavior and physiological effects. The possible mechanisms of "contact guidance" formation were discussed. The research trend and the potential applications were also suggested.

  15. Quality in career guidance: The Danish case

    DEFF Research Database (Denmark)

    Plant, Peter

    2011-01-01

    Quality assurance systems are introduced in career guidance to monitor, control and develop guidance interventions. The Danish case represents at centrally driven, top-down approach......Quality assurance systems are introduced in career guidance to monitor, control and develop guidance interventions. The Danish case represents at centrally driven, top-down approach...

  16. Dental caries vaccine

    Directory of Open Access Journals (Sweden)

    Shivakumar K

    2009-01-01

    Full Text Available Dental caries is one of the most common diseases in humans. In modern times, it has reached epidemic proportions. Dental caries is an infectious microbiologic disease of the teeth that results in localized dissolution and destruction of the calcified tissue. Dental caries is a mulitifactorial disease, which is caused by host, agent, and environmental factors. The time factor is important for the development and progression of dental caries. A wide group of microorganisms are identified from carious lesions of which S. mutans , Lactobacillus acidophilus , and Actinomyces viscosus are the main pathogenic species involved in the initiation and development of dental caries. In India, surveys done on school children showed caries prevalence of approximately 58%. Surveys among the U.S. population showed an incidence of 45.3% in children and 93.8% in adults with either past or present coronal caries. Huge amounts of money and time are spent in treating dental caries. Hence, the prevention and control of dental caries is the main aim of public health, eventually the ultimate objective of public health is the elimination of the disease itself. Recently, dental caries vaccines have been developed for the prevention of dental caries. These dental caries vaccines are still in the early stages.

  17. Dental hygiene in Slovakia.

    Science.gov (United States)

    Luciak-Donsberger, C; Krizanová, M

    2004-08-01

    This article reports on the development of the dental hygiene profession in Slovakia from a global perspective. The aim is to inform about current developments and to examine, how access to qualified dental hygiene care might be improved and how professional challenges might be met. For an international study on dental hygiene, secondary source data were obtained from members of the House of Delegates of the International Federation of Dental Hygienists (IFDH) or by fax and e-mail from experts involved in the national professional and educational organization of dental hygiene in non-IFDH member countries, such as Slovakia. Responses were followed-up by interviews, e-mail correspondence, visits to international universities, and a review of supporting studies and reference literature. Results show that the introduction of dental hygiene in Slovakia in 1992 was inspired by the delivery of preventive care in Switzerland. Initiating local dentists and dental hygienists strive to attain a high educational level, equitable to that of countries in which dental hygiene has an established tradition of high quality care. Low access to qualified dental hygiene care may be a result of insufficient funding for preventive services, social and cultural lack of awareness of the benefits of preventive care, and of limitations inherent in the legal constraints preventing unsupervised dental hygiene practice. These may be a result of gender politics affecting a female-dominated profession and of a perception that dental hygiene is auxiliary to dental care. International comparison show that of all Eastern European countries, the dental hygiene profession appears most advanced in Slovakia. This is expressed in high evidence-based academic goals, in extensive work with international consultants from the Netherlands and Switzerland, in annual congresses of high professional quality, and in the establishment of a profession, which has not been introduced in all Western EU countries.

  18. Dental Implant Placement using C-arm CT Real Time Imaging System: A Case Report.

    Science.gov (United States)

    Rajkumar, B; Boruah, Lalit C; Thind, Amandeep; Jain, Gaurav; Gupta, Shilpi

    2014-12-01

    C-arm computed tomography (CT) is a new and innovative imaging technique. In combination with two-dimensional fluoroscopic or radiographic imaging, information provided by three-dimensional C-arm real time imaging can be valuable for therapy planning, guidance and outcome assessment in dental implant placement. This paper reports a case of two dental implant placement using Artis zee C-arm CT system first time in field of implantology.

  19. Current Trends in Tactical Missile Guidance

    Directory of Open Access Journals (Sweden)

    S. Vathsal

    2005-07-01

    Full Text Available The problem of tactical missile guidance is very challenging and has been treated using several basic metlfodologies in the past four decades. Major techniques can be grouped underclassical guidance laws, modern guidance laws, l'aws for manoeuvring targets, predictive guidance for endgame scenario, and guidance laws based on intelligent control methods. Each technique has some advantages and disadvantages while implementing in a practical system. Guidance law selection is dictated by nature of flight profile like boost, midcourse, terminal homing, etc, and also miss-distance and a single-shot kill probability. This paper presents a brief survey of the existing techniques and current trends in tactical missile guidance.

  20. Risk factors and prevalence of dental fluorosis and dental caries in school children of North India.

    Science.gov (United States)

    Plaka, Kavita; Ravindra, Khaiwal; Mor, Suman; Gauba, Krishan

    2017-01-01

    The aim of the study was to assess the prevalence of dental fluorosis, dental caries, and associated risk factors in the school children of district Fatehgarh Sahib, Punjab, India, using a cross-sectional study design. Oral health status of children aged between 8 and 15 years was assessed using World Health Organization (WHO) 2013 criteria. Dental fluorosis was assessed using Dean's index, and dental caries were recorded using decayed, missing, filled/decayed, extracted, filled (DMF/def) indices. Four hundred school children were examined, of which 207 were in the 8-11-year-old group and 193 were in the 12-15-year-old group. The overall prevalence of dental fluorosis was 4.1%, which might be linked to a high concentration of fluoride in drinking water at certain locations of rural Punjab. The prevalence of dental caries was 36.5% with a mean DMF score of 0.3 and def score of 0.6. Risk factors for dental caries include oral hygiene behavior and sugar consumption patterns. The study highlights the need to increase awareness about the oral health and hygiene among the school children in India.

  1. The Inquiry Approach in Dental Hygiene Education.

    Science.gov (United States)

    Scott, Ruth Lois; And Others

    1985-01-01

    A study to assess the impact of an inquiry-oriented curriculum in a dental hygiene program is described. Two instruments, designed to measure student perception of personal and faculty inquiry and disinquiry behavior, were administered. The implications of the findings are discussed. (Author/MLW)

  2. Signaling mechanisms in cortical axon growth, guidance and branching

    Directory of Open Access Journals (Sweden)

    Katherine eKalil

    2011-09-01

    Full Text Available Precise wiring of cortical circuits during development depends upon axon extension, guidance and branching to appropriate targets. Motile growth cones at axon tips navigate through the nervous system by responding to molecular cues, which modulate signaling pathways within axonal growth cones. Intracellular calcium signaling has emerged as a major transducer of guidance cues but exactly how calcium signaling pathways modify the actin and microtubule cytoskeleton to evoke growth cone behaviors and axon branching is still mysterious. Axons must often pause in their outgrowth while their branches extend into targets. Some evidence suggests a competition between growth of axons and branches but the mechanisms are poorly understood. Since it is difficult to study growing axons deep within the mammalian brain, much of what we know about signaling pathways and cytoskeletal dynamics has come from studies of axonal growth cones, in many cases from non-mammalian species, growing in tissue culture. Consequently it is not well understood how guidance cues relevant to mammalian neural development in vivo signal to the growth cone cytoskeleton during axon outgrowth and guidance. In this review we describe our recent work in dissociated cultures of developing rodent sensorimotor cortex in the context of the current literature on molecular guidance cues, calcium signaling pathways and cytoskeletal dynamics that regulate growth cone behaviors. A major challenge is to relate findings in tissue culture to mechanisms of cortical development in vivo. Toward this goal, we describe our recent work in cortical slices, which preserve the complex cellular and molecular environment of the mammalian brain but allow direct visualization of growth cone behaviors and calcium signaling. Findings from this work suggest that mechanisms regulating axon growth and guidance in dissociated culture neurons also underlie development of cortical connectivity in vivo.

  3. The translation research in a dental setting (TRiaDS programme protocol

    Directory of Open Access Journals (Sweden)

    McKee Lorna

    2010-07-01

    Full Text Available Abstract Background It is well documented that the translation of knowledge into clinical practice is a slow and haphazard process. This is no less true for dental healthcare than other types of healthcare. One common policy strategy to help promote knowledge translation is the production of clinical guidance, but it has been demonstrated that the simple publication of guidance is unlikely to optimise practice. Additional knowledge translation interventions have been shown to be effective, but effectiveness varies and much of this variation is unexplained. The need for researchers to move beyond single studies to develop a generalisable, theory based, knowledge translation framework has been identified. For dentistry in Scotland, the production of clinical guidance is the responsibility of the Scottish Dental Clinical Effectiveness Programme (SDCEP. TRiaDS (Translation Research in a Dental Setting is a multidisciplinary research collaboration, embedded within the SDCEP guidance development process, which aims to establish a practical evaluative framework for the translation of guidance and to conduct and evaluate a programme of integrated, multi-disciplinary research to enhance the science of knowledge translation. Methods Set in General Dental Practice the TRiaDS programmatic evaluation employs a standardised process using optimal methods and theory. For each SDCEP guidance document a diagnostic analysis is undertaken alongside the guidance development process. Information is gathered about current dental care activities. Key recommendations and their required behaviours are identified and prioritised. Stakeholder questionnaires and interviews are used to identify and elicit salient beliefs regarding potential barriers and enablers towards the key recommendations and behaviours. Where possible routinely collected data are used to measure compliance with the guidance and to inform decisions about whether a knowledge translation intervention is

  4. EAMJ Jan. Dental 10.indd

    African Journals Online (AJOL)

    2010-01-01

    Jan 1, 2010 ... the prevalence of dental caries and gingivitis among. 12-year-old children .... chemical, bacterial and mechanical irritation from dental plaque and ..... We thank the School of Dental Sciences and Colgate. Palmolive for part ...

  5. Information architecture. Volume 3: Guidance

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-04-01

    The purpose of this document, as presented in Volume 1, The Foundations, is to assist the Department of Energy (DOE) in developing and promulgating information architecture guidance. This guidance is aimed at increasing the development of information architecture as a Departmentwide management best practice. This document describes departmental information architecture principles and minimum design characteristics for systems and infrastructures within the DOE Information Architecture Conceptual Model, and establishes a Departmentwide standards-based architecture program. The publication of this document fulfills the commitment to address guiding principles, promote standard architectural practices, and provide technical guidance. This document guides the transition from the baseline or defacto Departmental architecture through approved information management program plans and budgets to the future vision architecture. This document also represents another major step toward establishing a well-organized, logical foundation for the DOE information architecture.

  6. Autonomous Guidance, Navigation and Control

    Science.gov (United States)

    Bordano, A. J.; Mcswain, G. G.; Fernandes, S. T.

    1991-01-01

    The NASA Autonomous Guidance, Navigation and Control (GN&C) Bridging program is reviewed to demonstrate the program plan and GN&C systems for the Space Shuttle. The ascent CN&C system is described in terms of elements such as the general-purpose digital computers, sensors for the navigation subsystem, the guidance-system software, and the flight-control subsystem. Balloon-based and lidar wind soundings are used for operations assessment on the day of launch, and the guidance software is based on dedicated units for atmospheric powered flight, vacuum powered flight, and abort-specific situations. Optimization of the flight trajectories is discussed, and flight-control responses are illustrated for wavelengths of 500-6000 m. Alternate sensors are used for load relief, and adaptive GN&C systems based on alternate gain synthesis are used for systems failures.

  7. Dental erosion, summary.

    Science.gov (United States)

    ten Cate, J M; Imfeld, T

    1996-04-01

    Although reports on dental erosion have always appeared in the dental literature, there is currently a growing interest among researchers and clinicians. Potential risk factors for dental erosion are changed lifestyle and eating patterns, with increased consumption of acidic foods and beverages. Various gastrointestinal and eating disorders expose the dentition to frequent contacts with very acidic gastric content, which may lead to erosion. Whether these factors indeed lead, on a population scale, to a higher prevalence and incidence of erosion is yet to be established. This article summarizes the different aspects of the prevalence, pathology, etiology, assessment, prevention and treatment of dental erosion, and concludes with recommendations for future research.

  8. Acute dental pain II

    DEFF Research Database (Denmark)

    Jonasson, Peter; Kirkevang, Lise-Lotte; Rosen, Annika

    2016-01-01

    Acute dental pain most often occurs in relation to inflammatory conditions in the dental pulp or in the periradicular tissues surrounding a tooth, but it is not always easy to reach a diagnose and determine what treatment to perform. The anamnesis and the clinical examination provide valuable...... dental pain, they expect that the dentist starts treatment at once and that the treatment should provide pain relief. In this situation many patients are fragile, anxious and nervous. If the dentist is able to manage emergency treatment of acute dental pain this will build confidence and trust between...

  9. Dental Implant Systems

    Science.gov (United States)

    Oshida, Yoshiki; Tuna, Elif B.; Aktören, Oya; Gençay, Koray

    2010-01-01

    Among various dental materials and their successful applications, a dental implant is a good example of the integrated system of science and technology involved in multiple disciplines including surface chemistry and physics, biomechanics, from macro-scale to nano-scale manufacturing technologies and surface engineering. As many other dental materials and devices, there are crucial requirements taken upon on dental implants systems, since surface of dental implants is directly in contact with vital hard/soft tissue and is subjected to chemical as well as mechanical bio-environments. Such requirements should, at least, include biological compatibility, mechanical compatibility, and morphological compatibility to surrounding vital tissues. In this review, based on carefully selected about 500 published articles, these requirements plus MRI compatibility are firstly reviewed, followed by surface texturing methods in details. Normally dental implants are placed to lost tooth/teeth location(s) in adult patients whose skeleton and bony growth have already completed. However, there are some controversial issues for placing dental implants in growing patients. This point has been, in most of dental articles, overlooked. This review, therefore, throws a deliberate sight on this point. Concluding this review, we are proposing a novel implant system that integrates materials science and up-dated surface technology to improve dental implant systems exhibiting bio- and mechano-functionalities. PMID:20480036

  10. Dental Implant Systems

    Directory of Open Access Journals (Sweden)

    Yoshiki Oshida

    2010-04-01

    Full Text Available Among various dental materials and their successful applications, a dental implant is a good example of the integrated system of science and technology involved in multiple disciplines including surface chemistry and physics, biomechanics, from macro-scale to nano-scale manufacturing technologies and surface engineering. As many other dental materials and devices, there are crucial requirements taken upon on dental implants systems, since surface of dental implants is directly in contact with vital hard/soft tissue and is subjected to chemical as well as mechanical bio-environments. Such requirements should, at least, include biological compatibility, mechanical compatibility, and morphological compatibility to surrounding vital tissues. In this review, based on carefully selected about 500 published articles, these requirements plus MRI compatibility are firstly reviewed, followed by surface texturing methods in details. Normally dental implants are placed to lost tooth/teeth location(s in adult patients whose skeleton and bony growth have already completed. However, there are some controversial issues for placing dental implants in growing patients. This point has been, in most of dental articles, overlooked. This review, therefore, throws a deliberate sight on this point. Concluding this review, we are proposing a novel implant system that integrates materials science and up-dated surface technology to improve dental implant systems exhibiting bio- and mechano-functionalities.

  11. Agent Based Individual Traffic guidance

    DEFF Research Database (Denmark)

    Wanscher, Jørgen Bundgaard

    2004-01-01

    When working with traffic planning or guidance it is common practice to view the vehicles as a combined mass. >From this models are employed to specify the vehicle supply and demand for each region. As the models are complex and the calculations are equally demanding the regions and the detail...... can be obtained through cellular phone tracking or GPS systems. This information can then be used to provide individual traffic guidance as opposed to the mass information systems of today -- dynamic roadsigns and trafficradio. The goal is to achieve better usage of road and time. The main topic...

  12. Child friendly colors in a pediatric dental practice

    Directory of Open Access Journals (Sweden)

    N Umamaheshwari

    2013-01-01

    Full Text Available Background: The child′s perception of the dental environment is a significant factor causing dental anxiety. If the color of the dental environment can have a positive impact on the child′s behavior, it is possible that those colors may add to the comfort of a child, thus reducing dental anxiety. Aim: To evaluate the association between color and emotions of children in a pediatric dental set-up. Design: A total of 300 children aged 6-12 years were divided into 2 groups: Younger children (6-9 years, n = 156 and older children (9-12 years, n = 144. All the children were asked to shade two cartoon faces representing happiness and fear with their most preferred color. Results: For the positive emotion, 44% (n = 132 of the children preferred yellow, followed by blue 32.67% (n = 98. For negative emotion, 56.67% (n = 170 of the children preferred black and 42.67% (n = 128 preferred red. Association between color and emotion was highly significant (P < 0.001. Conclusion: This study has attempted to advance the area of color research to dental anxiety in children visiting a dental clinic. The use of child friendly colors like yellow and blue in the dental work place could enhance a positive dental attitude in the child′s mind.

  13. Assessing Cultural Competence among Florida's Allied Dental Faculty.

    Science.gov (United States)

    Behar-Horenstein, Linda S; Garvan, Cyndi W; Su, Yu; Feng, Xiaoying; Catalanotto, Frank A

    2016-06-01

    The Commission on Dental Accreditation requires that dental, dental hygiene and dental assisting schools offer educational experiences to ensure that prospective dental health care providers become culturally competent, socially responsible practitioners. To assert that these mandates are met requires that the faculty are knowledgeable and capable of providing this type of training. Currently, little is known about the cultural competence of the state of Florida allied dental faculty. The purpose of this study was to assess the cultural competence among the dental hygiene and dental assistant faculty in the state of Florida. One hundred ninety-three faculty were invited to take the Knowledge, Efficacy and Practices Instrument (KEPI), a validated measure of cultural competence. Respondents included 77 (74%) full-time and 27 (26%) part-time faculty. Data were analyzed descriptively and reliabilities (Cronbach's alpha) were computed. Mean scores and internal estimates of reliability on the KEPI subscales were: knowledge of diversity 3.3 (ɑ=0.88), culture-centered practice 3.6 (ɑ=0.88) and efficacy of assessment 2.9 (ɑ=0.74). The participant's score of 3.6 on the culture-centered practice exceeds scores among dental students and faculty who participated in previous studies suggesting the allied dental faculty have a greater awareness of sociocultural and linguistically diverse dental patients' oral health needs. Participants' score on knowledge of diversity subscales suggests a need for moderate training, while their score on the efficacy of assessment subscale indicates a need for more intense training. Assessing faculty beliefs, knowledge and skills about cultural competency is critically important in ensuring that accreditation standards are being met and represents one step in the process of ensuring that faculty demonstrate the type of sensitivity and responsiveness, which characterizes behaviors associated with cultural competence. Copyright © 2016 The

  14. Guidance for evidence-informed policies about health systems: rationale for and challenges of guidance development.

    Science.gov (United States)

    Bosch-Capblanch, Xavier; Lavis, John N; Lewin, Simon; Atun, Rifat; Røttingen, John-Arne; Dröschel, Daniel; Beck, Lise; Abalos, Edgardo; El-Jardali, Fadi; Gilson, Lucy; Oliver, Sandy; Wyss, Kaspar; Tugwell, Peter; Kulier, Regina; Pang, Tikki; Haines, Andy

    2012-01-01

    In the first paper in a three-part series on health systems guidance, Xavier Bosch-Capblanch and colleagues examine how guidance is currently formulated in low- and middle-income countries, and the challenges to developing such guidance.

  15. 78 FR 56752 - Interim Staff Guidance Specific Environmental Guidance for Integral Pressurized Water Reactors...

    Science.gov (United States)

    2013-09-13

    ... From the Federal Register Online via the Government Publishing Office NUCLEAR REGULATORY COMMISSION Interim Staff Guidance Specific Environmental Guidance for Integral Pressurized Water Reactors... and operate integral pressurized water reactors (iPWR). This guidance applies to environmental reviews...

  16. Pioneering Strategies for Relieving Dental Anxiety in Hearing Impaired Children: a Randomized Controlled Clinical Study.

    Science.gov (United States)

    Chandrasekhar, Shalini; Madu, Ghanashyam Prasad; Ambati, Naga Radhakrishna; Suravarapu, Pavani Reddy; Uppu, Kalyani; Bolla, Deepthi

    2017-06-01

    Hearing impaired children have a problem in understanding and comprehending with dental treatments. Visual language is the sensible answer of how to improve communication with them. To evaluate the applicability of dental sign language in Hearing impaired children in relieving anxiety during stressful dental treatment by improving their means of communication. This randomized clinical trial was carried out in the Department of Pedodontics and Preventive Dentistry which included 40 Hearing Impaired children meeting inclusion criteria. The selected children were randomly divided into the study and control group comprising of 20 each. In the control group, initial oral examination and dental treatment (oral prophylaxis and class I restoration) were performed without the use of dental sign language. In the study group, the dental sign language specific to dental treatment was educated and during their subsequent visit to the dental clinic after dental sign language reinforcement, oral prophylaxis and class I restoration were done. Subjective and objective measurements of anxiety were recorded for both groups using facial image scale (FIS), pulse oximeter and electronic blood pressure apparatus to compare for correlation. The obtained data were subjected to statistical analysis using unpaired t-test. There was a statistically significant reduction in the anxiety levels (pcontrol group. Dental sign language was effective in reducing the level of anxiety in children who are hard of hearing. Dental sign language was able to improve behavior positively during dental treatment and may also aid in developing a positive dental attitude among children who are hard of hearing.

  17. Education About Dental Hygienists' Roles in Public Dental Prevention Programs: Dental and Dental Hygiene Students' and Faculty Members' and Dental Hygienists' Perspectives.

    Science.gov (United States)

    Pervez, Anushey; Kinney, Janet S; Gwozdek, Anne; Farrell, Christine M; Inglehart, Marita R

    2016-09-01

    In 2005, Public Act No. 161 (PA 161) was passed in Michigan, allowing dental hygienists to practice in approved public dental prevention programs to provide services for underserved populations while utilizing a collaborative agreement with a supervising dentist. The aims of this study were to assess how well dental and dental hygiene students and faculty members and practicing dental hygienists have been educated about PA 161, what attitudes and knowledge about the act they have, and how interested they are in additional education about it. University of Michigan dental and dental hygiene students and faculty members, students in other Michigan dental hygiene programs, and dental hygienists in the state were surveyed. Respondents (response rate) were 160 dental students (50%), 63 dental hygiene students (82%), 30 dental faculty members (26%), and 12 dental hygiene faculty members (52%) at the University of Michigan; 143 dental hygiene students in other programs (20%); and 95 members of the Michigan Dental Hygienists' Association (10%). The results showed that the dental students were less educated about PA 161 than the dental hygiene students, and the dental faculty members were less informed than the dental hygiene faculty members and dental hygienists. Responding dental hygiene faculty members and dental hygienists had more positive attitudes about PA 161 than did the students and dental faculty members. Most of the dental hygiene faculty members and dental hygienists knew a person providing services in a PA 161 program. Most dental hygiene students, faculty members, and dental hygienists wanted more education about PA 161. Overall, the better educated about the program the respondents were, the more positive their attitudes, and the more interested they were in learning more.

  18. Autonomous gliding entry guidance with

    Directory of Open Access Journals (Sweden)

    Guo Jie

    2015-10-01

    Full Text Available This paper presents a novel three-dimensional autonomous entry guidance for relatively high lift-to-drag ratio vehicles satisfying geographic constraints and other path constraints. The guidance is composed of onboard trajectory planning and robust trajectory tracking. For trajectory planning, a longitudinal sub-planner is introduced to generate a feasible drag-versus-energy profile by using the interpolation between upper boundary and lower boundary of entry corridor to get the desired trajectory length. The associated magnitude of the bank angle can be specified by drag profile, while the sign of bank angle is determined by lateral sub-planner. Two-reverse mode is utilized to satisfy waypoint constraints and dynamic heading error corridor is utilized to satisfy no-fly zone constraints. The longitudinal and lateral sub-planners are iteratively employed until all of the path constraints are satisfied. For trajectory tracking, a novel tracking law based on the active disturbance rejection control is introduced. Finally, adaptability tests and Monte Carlo simulations of the entry guidance approach are performed. Results show that the proposed entry guidance approach can adapt to different entry missions and is able to make the vehicle reach the prescribed target point precisely in spite of geographic constraints.

  19. Atmospheric guidance techniques and performance

    Science.gov (United States)

    Harpold, J. C.; Gavert, D. E.

    1982-01-01

    The Orbiter entry guidance system controls the Space Shuttle Orbiter from the initial atmospheric penetration point to the point at which an earth relative velocity of 2500 feet/second is reached. At the latter point, control of the Orbiter is transferred to the terminal area energy management system. The entry guidance system is based on the concept that the range to be flown during entry is a unique function of the drag deceleration profile flown throughout the entry. The range prediction during entry is based on analytic equations which are simple drag deceleration functions of earth relative velocity above Mach 10.5 and energy with respect to the earth below Mach 10.5. Flight through the entry corridor is accomplished by linking these simple drag deceleration functions together in series in order to define a drag deceleration reference profile. The results of the first three Space Shuttle missions have not only verified the entry guidance concept but have also demonstrated the stability of the guidance system.

  20. Abortion Information: A Guidance Viewpoint

    Science.gov (United States)

    Wolleat, Patricia L.

    1975-01-01

    A number of questions relating to providing abortion information to teenagers can be raised from legal, ethical and philosophical standpoints. The purpose of this article is to examine abortion information-giving from the perspective of counseling and guidance theory and practice. (Author)

  1. Teacher Guidance of Knowledge Construction

    Science.gov (United States)

    Schwarz, Baruch; Dreyfus, Tommy; Hadas, Nurit; Hershkowitz, Rina

    2004-01-01

    This paper focuses on how teachers guide construction of knowledge in classrooms. We suggest that guidance hinges on the kind of dialogue teachers choose to engage students in. We propose several classroom dialogue types relevant for the construction of knowledge and suggest that critical dialogue is particularly effective for knowledge…

  2. Guidance: Interim Municipal Settlement Policy

    Science.gov (United States)

    Interim guidance and fact sheets regarding settlements involving municipalities or municipal waste under Section 122 CERCLA as amended by SARA. Interim policy sets forth the criteria by which EPA generally determines whether to exercise enforcement discretion to pursue MSW generators and transporters as PRPs.

  3. Agent Based Individual Traffic Guidance

    DEFF Research Database (Denmark)

    Wanscher, Jørgen

    This thesis investigates the possibilities in applying Operations Research (OR) to autonomous vehicular traffic. The explicit difference to most other research today is that we presume that an agent is present in every vehicle - hence Agent Based Individual Traffic guidance (ABIT). The next...

  4. DOE Waste Treatability Group Guidance

    Energy Technology Data Exchange (ETDEWEB)

    Kirkpatrick, T.D.

    1995-01-01

    This guidance presents a method and definitions for aggregating U.S. Department of Energy (DOE) waste into streams and treatability groups based on characteristic parameters that influence waste management technology needs. Adaptable to all DOE waste types (i.e., radioactive waste, hazardous waste, mixed waste, sanitary waste), the guidance establishes categories and definitions that reflect variations within the radiological, matrix (e.g., bulk physical/chemical form), and regulated contaminant characteristics of DOE waste. Beginning at the waste container level, the guidance presents a logical approach to implementing the characteristic parameter categories as part of the basis for defining waste streams and as the sole basis for assigning streams to treatability groups. Implementation of this guidance at each DOE site will facilitate the development of technically defined, site-specific waste stream data sets to support waste management planning and reporting activities. Consistent implementation at all of the sites will enable aggregation of the site-specific waste stream data sets into comparable national data sets to support these activities at a DOE complex-wide level.

  5. Interstitial guidance of cancer invasion.

    NARCIS (Netherlands)

    Gritsenko, P.G.; Ilina, O.; Friedl, P.H.

    2012-01-01

    Cancer cell invasion into healthy tissues develops preferentially along pre-existing tracks of least resistance, followed by secondary tissue remodelling and destruction. The tissue scaffolds supporting or preventing guidance of invasion vary in structure and molecular composition between organs. In

  6. Dutch dental patients on informed consent: Knowledge, attitudes, self-efficacy and behaviour.

    NARCIS (Netherlands)

    Schouten, B.; Hoogstraten, J.; Eijkman, M.

    2002-01-01

    Examined knowledge, attitudes, self-efficacy, and behavior concerning informed consent regarding dental patients. 128 dental patients (mean age 41.7 yrs) completed questionnaires concerning knowledge of and attitudes and behavior toward present status, purpose and risks of treatment, treatment costs

  7. The servant leader: a higher calling for dental professionals.

    Science.gov (United States)

    Certosimo, Fred

    2009-09-01

    The dental profession is guided by normative principles that provide guidance to our leaders and practicing dentists in addressing the needs of patients and the profession, yet there is room for incorporating new ideas that help dental professionals meet their professional obligations. The purpose of this essay is to discuss the concept of "servant leadership," especially in contrast with "self-serving leaders," and to suggest that servant leadership is consistent with the high ethical and professional ideals of the dental profession. The servant leader is the antithesis of the self-serving leader, who incessantly seeks more power and acquisition of material possessions. The servant leader's highest priority is the people (patients/students/customers) he or she serves. The concept of the servant-leader can take us away from self-serving, top-down leadership and encourage us to think harder about how to respect, value, and motivate people and ultimately provide better service to our patients.

  8. Cooperative Guidance for Multimissile Salvo Attack

    Institute of Scientific and Technical Information of China (English)

    Zhao Shiyu; Zhou Rui

    2008-01-01

    Cooperative guidance problems of multiple missiles are considered in this article. A cooperative guidance scheme, where coordi-nation algorithms and local guidance laws are combined together, is proposed. This scheme actually builds up a hierarchical cooperative guidance architecture, which may provide a general solution to the multimissile cooperative guidance problems. In the case of salvo attacks which require missiles to hit the target simultaneously, both centralized and distributed coordination algorithms are derived based on the impact-time-control guidance (ITCG) law. Numerical simulations are performed to demonstrate the effectiveness of the proposed approaches.

  9. How navigational guidance systems are combined in a desert ant.

    Science.gov (United States)

    Collett, Matthew

    2012-05-22

    Animals use information from multiple sources in order to navigate between goals. Ants such as Cataglyphis fortis use an odometer and a sun-based compass to provide input for path integration (PI). They also use configurations of visual features to learn both goal locations and habitual routes to the goals. Information is not combined into a unified representation but appears to be exploited by separate expert guidance systems. Visual and PI goal memories are acquired rapidly and provide the consistency for route memories to be formed. Do established route memories then suppress the guidance from PI? A series of manipulations putting PI and route memories into varying levels of conflict found that ants follow compromise trajectories. The guidance systems are therefore active together and share the control of behavior. Route memories do not suppress the other guidance systems. A simple model shows that observed patterns of control could arise from a superposition of the output commands from the guidance systems, potentially approximating Bayesian inference. These results help show how an insect's relatively simple decision-making can produce navigation that is reliable and efficient and that also adapts to changing demands.

  10. Dental fraud: an introduction.

    Science.gov (United States)

    Anderson, Max H

    2003-01-01

    A manager of a dental benefits program defines fraud and abuse in the dental context. Such practices may cost as much as four billion dollars annually and have a damaging effect on the trust the profession places in the profession and on the way dentists relate to each other.

  11. Dental Charting. Student's Manual.

    Science.gov (United States)

    Weaver, Trudy Karlene; Apfel, Maura

    This manual is part of a series dealing with skills and information needed by students in dental assisting. The individualized student materials are suitable for classroom, laboratory, or cooperative training programs. This student manual contains four units covering the following topics: dental anatomical terminology; tooth numbering systems;…

  12. [Dental practice and AIDS].

    Science.gov (United States)

    Rojanawatsirivej, S

    1991-01-01

    In Thailand nowadays AIDS is not completely under control. This is evident from reports which show an increasing number of HIV-positive patients. Since an unknown number of HIV-infected persons who are either undiagnosed or asymptomatic come to get dental service, fears of getting infected with HIV have been developed among dental professionals. This article summarizes a number of past studies and reports on HIV transmission in dental work and discusses the possibility of AIDS infection and dental occupational risk. It also urges dental professionals to take effective safety precaution against the infection. This is for their own and their patients' well-being and hopefully for Thailand's success in controlling AIDS.

  13. Effects of dental porcelain containing silver nanoparticles on static fatigue.

    Science.gov (United States)

    Fujieda, Tokushi; Uno, Mitsunori; Ishigami, Hajime; Kurachi, Masakazu; Kamemizu, Hideo; Wakamatsu, Nobukazu; Doi, Yutaka

    2013-01-01

    The purpose of this study was to clarify the effect of silver nanoparticles on the behavior of subcritical crack growth (SCG) in dental porcelains. Prior to occurrence of fast fracture in dental porcelains, SCG occurs and leads to strength degradation over time. SCG in dental porcelains can be characterized by the stress corrosion susceptibility coefficient, n. A higher n value means a higher resistance to SCG. In this study, porcelain disks were prepared by mixing a commercial dental porcelain powder with different concentrations of silver nanoparticles, and then air-dried and fired according to manufacturer's instructions. Stress corrosion susceptibility coefficients of powder compacts were determined using a post-indentation method. A Vickers indenter was applied to the porcelain surface, and lengths of median cracks were measured at fixed time intervals over a 24-h period to calculate n. Addition of silver nanoparticles significantly increased the stress corrosion susceptibility coefficient of dental porcelain.

  14. [The reality of the oral/dental health of the elderly in the Brazilian Southeast].

    Science.gov (United States)

    Simões, Ana Carolina de Assis; Carvalho, Denise Maciel

    2011-06-01

    The scope of this work was to describe the alterations revealed in oral/dental structures resulting from ageing and to verify, through the national scientific production, with emphasis on the Southeastern region, the prevaling oral/dental problems in the elderly. A review of the literature on the theme of ageing in the context of dentistry was conducted. The results pointed to the fact that the elderly population is the fastest growing population segment. The prevailing oral/dental problems in this age bracket are radicular caries and periodontal illness, which contribute to the vast majority of dental extractions. In the Southeastern region of Brazil, the use of prostheses is low when compared with the high rate of tooth loss and the percentage of partially toothed elderly people; the value of the CPOD index is high and the elderly have a positive perception on their teeth, despite the fact that oral/dental problems have a negative impact on their lives. It is concluded that the inclusion of a dental surgeon in the healthcare team of the institutions and the systematization of oral/dental hygiene are pressing needs, in addition to the need for ongoing work of guidance for the the oral/dental healthcare of the elderly. Broadening of the study in this area is also fundamental to ensure dental care and treatment of these individuals.

  15. Bisphenol A and Related Compounds in Dental Materials

    Science.gov (United States)

    Fleisch, Abby F.; Sheffield, Perry E.; Chinn, Courtney; Edelstein, Burton L.; Landrigan, Philip J.

    2014-01-01

    CONTEXT Dental sealants and composite filling materials containing bisphenol A (BPA) derivatives are increasingly used in childhood dentistry. Evidence is accumulating that BPA and some BPA derivatives can pose health risks attributable to their endocrine-disrupting, estrogenic properties. OBJECTIVES To systematically compile and critically evaluate the literature characterizing BPA content of dental materials; to assess BPA exposures from dental materials and potential health risks; and to develop evidence-based guidance for reducing BPA exposures while promoting oral health. METHODS The extant toxicological literature and material safety data sheets were used as data sources. RESULTS BPA is released from dental resins through salivary enzymatic hydrolysis of BPA derivatives, and BPA is detectable in saliva for up to 3 hours after resin placement. The quantity and duration of systemic BPA absorption is not clear from the available data. Dental products containing the bisphenol A derivative glycidyl dimethacrylate (bis-GMA) are less likely to be hydrolyzed to BPA and have less estrogenicity than those containing bisphenol A dimethacrylate (bis-DMA). Most other BPA derivatives used in dental materials have not been evaluated for estrogenicity. BPA exposure can be reduced by cleaning and rinsing surfaces of sealants and composites immediately after placement. CONCLUSIONS On the basis of the proven benefits of resin-based dental materials and the brevity of BPA exposure, we recommend continued use with strict adherence to precautionary application techniques. Use of these materials should be minimized during pregnancy whenever possible. Manufacturers should be required to report complete information on the chemical composition of dental products and encouraged to develop materials with less estrogenic potential. PMID:20819896

  16. Strategies to manage patients with dental anxiety and dental phobia: literature review

    Directory of Open Access Journals (Sweden)

    Appukuttan DP

    2016-03-01

    Full Text Available Deva Priya Appukuttan Department of Periodontics, Sri Ramakrishna Mission Dental College and Hospital, Chennai, India Abstract: Dental anxiety and phobia result in avoidance of dental care. It is a frequently encountered problem in dental offices. Formulating acceptable evidence-based therapies for such patients is essential, or else they can be a considerable source of stress for the dentist. These patients need to be identified at the earliest opportunity and their concerns addressed. The initial interaction between the dentist and the patient can reveal the presence of anxiety, fear, and phobia. In such situations, subjective evaluation by interviews and self-reporting on fear and anxiety scales and objective assessment of blood pressure, pulse rate, pulse oximetry, finger temperature, and galvanic skin response can greatly enhance the diagnosis and enable categorization of these individuals as mildly, moderately, or highly anxious or dental phobics. Broadly, dental anxiety can be managed by psychotherapeutic interventions, pharmacological interventions, or a combination of both, depending on the level of dental anxiety, patient characteristics, and clinical situations. Psychotherapeutic interventions are either behaviorally or cognitively oriented. Pharmacologically, these patients can be managed using either sedation or general anesthesia. Behavior-modification therapies aim to change unacceptable behaviors through learning, and involve muscle relaxation and relaxation breathing, along with guided imagery and physiological monitoring using biofeedback, hypnosis, acupuncture, distraction, positive reinforcement, stop-signaling, and exposure-based treatments, such as systematic desensitization, “tell-show-do”, and modeling. Cognitive strategies aim to alter and restructure the content of negative cognitions and enhance control over the negative thoughts. Cognitive behavior therapy is a combination of behavior therapy and cognitive therapy

  17. 引导农户施肥行为在农业面源污染治理中的影响--基于中英项目调查分析%The Effects from Guidance of FarmersˊBehavior for Fertilizer Using in the Regulation of Agricultural Non -point Source Pollution:Based on the Survey of China -UK Educational Program

    Institute of Scientific and Technical Information of China (English)

    华春林; 陆迁; 姜雅莉

    2015-01-01

    Based on the implementation of the China -UK educational program,this paper empirically analyzes the effects from guidance of farmersˊbehavior for fertilizer using with the survey data of 331 farmers in Yangling Demonstration Zone and Wugong County of Shaanxi Province.The result indicates that the amount of farmersˊfertilizer using is significantly re-duced by correct guidance.During the process of constructing the governance micro -mechanism of agricultural non -point source pollution,it is necessary to seriously consider the guiding function of educational program.%基于中英项目实施情况,利用陕西省杨凌示范区及泾阳县331份农户实地调查数据,实证分析引导农户化肥施用行为在污染治理中的影响。分析结果表明对农户化肥施用行为的正确引导会减少化肥量的投入,最终影响我国农业面源污染的治理效果。因此,在构建我国农业面源污染微观治理机制时,要重视具有引导农户生产行为作用的治理手段。

  18. Career guidance and counselling for mobilities

    National Research Council Canada - National Science Library

    Zvariková, Mária

    2011-01-01

    In its first part, the article provides a basic overview on guidance and counselling for mobility issues at universities, focusing on the possibilities and role of guidance and counselling for both...

  19. Detection of Common Dental Diseases by Dental Hygiene-Therapists

    OpenAIRE

    Macey, Richard John

    2016-01-01

    Thesis submitted to the University of Manchester by Richard Macey for the Degree of Doctor of Philosophy entitled “Detection of Common Dental Diseases by Dental Hygiene-Therapists”, February 2016.Many adult patients that attend NHS dental practices on a regular basis are asymptomatic and do not need any further treatment other than a routine dental examination (“check-up”). As the oral health of the adult population is predicted to improve further, using the General Dental Practitioner to und...

  20. Evaluation of children's dental anxiety levels at a kindergarten and at a dental clinic.

    Science.gov (United States)

    Kilinç, Gulser; Akay, Aynur; Eden, Ece; Sevinç, Nilgün; Ellidokuz, Hülya

    2016-08-18

    This study evaluated the dental anxiety levels of preschool children at a kindergarten and at a dental clinic. The anxiety levels of ninety 4-6-year-old (4.99 ± 0.81) preschool children were evaluated according to pulse rates, the facial image scale (FIS), the Venham picture test (VPT), and the Frankl behavior rating scale. The children's mothers were asked to complete the state-trait anxiety inventory (STAI) forms 1 and 2 (STAI 2 and STAI 2). The sample t-test, Mann-Whitney U test, and Pearson's correlation test were used. A statistically significant difference was observed between the children's pulse rates when measured at the dental clinic and those when measured at the kindergarten (p kindergarten when assessed using FIS and VPT (p = 0.090 and p = 0.108, respectively). There was a statistically significant correlation between the transient anxiety levels (STAI 1) of mothers and the VPT scores of their children evaluated at the dental clinic (r = 0.506, p kindergarten, their anxiety levels seemingly increased as they arrived at the dental clinic. The significant increase observed in the children's pulse rates was a physical indicator that their anxiety levels had increased. It can be concluded that the children felt more anxious at the dental clinic that at the kindergarten.

  1. Health Instruction Packages: Permanent Teeth, Dental Deposits, and Dental Instruments. Dientes Permanentes, Depositos Dentales y Instrumentos Dentales.

    Science.gov (United States)

    Lind, Patricia; Germano, Catherine

    These five learning modules use text interspersed with illustrations and reinforcement exercises to instruct dental aide and dental hygiene students about jaw bones and gums, dental deposits, and dental instruments. The first four modules were prepared by Patricia Lind in both Spanish and English. "The Gum and Bone of Permanent Teeth"…

  2. 75 FR 16511 - Pentron Clinical Technologies, a Wholly-Owned Subsidiary of Kerr Dental/Sybron Dental...

    Science.gov (United States)

    2010-04-01

    ... such as dental prosthetics, dental composites, dental impressions, dental adhesives, and other dental... prosthetics, dental composites, dental impressions, dental adhesives, and other dental materials to Mexicali... Dental/Sybron Dental Specialities, Formally Known as Customedix Corporation, Including On-Site Leased...

  3. 牙科畏惧症的相关干预研究%Dental phobia related intervention study

    Institute of Scientific and Technical Information of China (English)

    杨芳; 魏薇; 韩祥祯

    2015-01-01

    Objective To investigate Dental Clinic adult patients the incidence of dental fear,and intervention research, provide evidence for its prevention. Methods Mainly Corah's Dental Anxiety Scale investigation,126 adult patients were divided into experimental and control groups. Experimental psychology and related behavioral intervention to observe its effect. Results 126 patients were divided into control and experimental groups, before and after the intervention of anxiety scores were compared,the two groups before intervention anxiety score was not significantly different.After the intervention,the intervention group anxiety score was significantly lower than the control group,the difference was significant,statistically significant. Conclusion Adult dental phobia therapy clinical dentists should observe and communicate and understand the needs of patients, while the entire course of treatment to deal with the anxiety of patients necessary psychological guidance, behavioral intervention,prevention and mitigation begin dental phobia from different aspects,improve the quality of care.%目的:对口腔门诊成人患者的牙科畏惧症进行干预研究,为其防治提供相关依据。方法:主要采用Corah ’s牙科焦虑量表,将126例成人患者分为干预组和对照组。干预组进行相关心理及行为干预,观察其效果。结果:126例患者分为对照组和干预组,对干预前后焦虑程度评分进行比较,干预前两组焦虑程度评分差异不明显。干预后,干预组的焦虑程度评分明显低于对照组,差异有统计学意义(P<0.05)。结论:成人牙科畏惧症患者临床口腔医生治疗时应注意观察和沟通,了解患者的需求,同时整个治疗过程应对焦虑患者进行必要的心理指导、行为干预,从不同方面着手预防和缓解牙科恐惧症,提高医疗质量。

  4. Vision-based bio-inspired guidance law for small aerial vehicle

    Institute of Scientific and Technical Information of China (English)

    Wang Zhengjie; Huang Weilin; Yan Yonghong

    2015-01-01

    During predation, a flying insect can form a stealth flight path. This behavior is called motion camouflage. Based on the study results of this behavior, the perception and neurology of flying insects, a novel bio-inspired guidance law is proposed for the terminal guidance for small aer-ial vehicle with charge-coupled device imaging seekers. The kinematics relationship between a small aerial vehicle and target is analyzed, and a two-dimensional guidance law model is established by using artificial neural networks. To compare with the proportional guidance law, the numerical sim-ulations are carried out in the vertical plane and in the horizontal plane respectively. The simulation results show that the ballistic of the small aerial vehicle is straighter and the normal acceleration is smaller by using the bio-inspired guidance law than by using the proportional guidance law. That is to say, the bio-inspired guidance law just uses the information of the target from the imaging seeker, but the performance of it can be better than that of the proportional guidance law.

  5. Vision-based bio-inspired guidance law for small aerial vehicle

    Directory of Open Access Journals (Sweden)

    Wang Zhengjie

    2015-02-01

    Full Text Available During predation, a flying insect can form a stealth flight path. This behavior is called motion camouflage. Based on the study results of this behavior, the perception and neurology of flying insects, a novel bio-inspired guidance law is proposed for the terminal guidance for small aerial vehicle with charge-coupled device imaging seekers. The kinematics relationship between a small aerial vehicle and target is analyzed, and a two-dimensional guidance law model is established by using artificial neural networks. To compare with the proportional guidance law, the numerical simulations are carried out in the vertical plane and in the horizontal plane respectively. The simulation results show that the ballistic of the small aerial vehicle is straighter and the normal acceleration is smaller by using the bio-inspired guidance law than by using the proportional guidance law. That is to say, the bio-inspired guidance law just uses the information of the target from the imaging seeker, but the performance of it can be better than that of the proportional guidance law.

  6. A guidance concept for hypersonic aerospacecrafts

    Science.gov (United States)

    Ishimoto, Shinji

    In this paper a guidance concept for hypersonic re-entry flights is presented. The method uses a closed-form guidance technique based on a drag acceleration reference profile. A guidance law for range control is developed. It employs a physical relation between vehicle energy and range instead of a prediction-correction technique used for Shuttle entry guidance. Simulation results show that the algorithm provides good performance.

  7. Zirconia as a Dental Biomaterial

    Directory of Open Access Journals (Sweden)

    Alvaro Della Bona

    2015-08-01

    Full Text Available Ceramics are very important in the science of dental biomaterials. Among all dental ceramics, zirconia is in evidence as a dental biomaterial and it is the material of choice in contemporary restorative dentistry. Zirconia has been applied as structural material for dental bridges, crowns, inserts, and implants, mostly because of its biocompatibility, high fracture toughness, and radiopacity. However, the clinical success of restorative dentistry has to consider the adhesion to different substrates, which has offered a great challenge to dental zirconia research and development. This study characterizes zirconia as a dental biomaterial, presenting the current consensus and challenges to its dental applications.

  8. In vitro evaluation of cytotoxicity and corrosion behavior of commercially pure titanium and Ti-6Al-4V alloy for dental implants

    Directory of Open Access Journals (Sweden)

    Sanchitha Chandar

    2017-01-01

    Conclusion: The commercially pure Ti showed better cell viability compared to Ti 31. Less cell viability in Ti 31 is because of the presence of aluminum and vanadium. A significant decrease in cytotoxicity due to the formation of TiO2over a period of time was observed both in Ti 12 and Ti 31. The electrochemical behavior of Ti 12 and Ti 31 in different experimental solutions showed a general tendency for the immersion potential to shift steadily toward nobler values indicated formation of TiO2 and additional metal oxides. Ti 31 alloy showed surface pitting because of its multiphase structure.

  9. Radiation exposure to foetus and breasts from dental X-ray examinations: effect of lead shields

    National Research Council Canada - National Science Library

    Kelaranta, Anna; Ekholm, Marja; Toroi, Paula; Kortesniemi, Mika

    2016-01-01

    .... In such cases, the radiation dose to the foetus, though low, needs to be estimated. Uniform and widely used guidance on dental X-ray procedures during pregnancy are presently lacking, the usefulness of lead shields is unclear and practices vary...

  10. Quality Assurance in University Guidance Services

    Science.gov (United States)

    Simon, Alexandra

    2014-01-01

    In Europe there is no common quality assurance framework for the delivery of guidance in higher education. Using a case study approach in four university career guidance services in England, France and Spain, this article aims to study how quality is implemented in university career guidance services in terms of strategy, standards and models,…

  11. The Self in Guidance: Assumptions and Challenges.

    Science.gov (United States)

    Edwards, Richard; Payne, John

    1997-01-01

    Examines the assumptions of "self" made in the professional and managerial discourses of guidance. Suggests that these assumptions obstruct the capacity of guidance workers to explain their own practices. Drawing on contemporary debates over identity, modernity, and postmodernity, argues for a more explicit debate about the self in guidance. (RJM)

  12. 78 FR 53792 - Draft Guidance for Reciprocity

    Science.gov (United States)

    2013-08-30

    ...The U.S. Nuclear Regulatory Commission (NRC) is revising its licensing guidance for reciprocity. The NRC is requesting public comment on draft NUREG-1556, Volume 19, Revision 1, ``Consolidated Guidance about Materials Licenses: Guidance for Agreement State Licensees about NRC Form 241 `Report of Proposed Activities in Non- Agreement States, Areas of Exclusive Federal Jurisdiction, of Offshore......

  13. Providing Career Guidance for Young Women.

    Science.gov (United States)

    Colby, Pamela G.

    This module is directed at personnel working or planning to work in the areas of guidance, counseling, placement and follow-through in junior and senior high school settings, grades 7-12. The module topic is career guidance for young women of junior and senior high school age, aand the focus will be on providing nonbiased career guidance which…

  14. Quality Assurance in University Guidance Services

    Science.gov (United States)

    Simon, Alexandra

    2014-01-01

    In Europe there is no common quality assurance framework for the delivery of guidance in higher education. Using a case study approach in four university career guidance services in England, France and Spain, this article aims to study how quality is implemented in university career guidance services in terms of strategy, standards and models,…

  15. Reentry guidance for Space Shuttle

    Science.gov (United States)

    Causey, W.; Sohoni, V.

    1973-01-01

    An explicit guidance scheme is outlined which provides the appropriate energy management in order for the shuttle orbiter to reach any location within the required footprint. Considering the orbiter as entering the earth's atmosphere, expressions for the downrange, crossrange, and the time of the termination of the entry phase as functions of the control variables are developed. Performing an order-of-magnitude analysis of the terms in these expressions, only dominant terms are retained. Analytical expressions for the elements of the sensitivity matrix which represents the partial derivatives of the desired range with respect to control variables are formulated. Using the Gauss-Jordan inversion technique, the required change in guidance commands as a function of the deviations in the downrange and crossrange are explicitly computed.

  16. Reentry guidance for Space Shuttle

    Science.gov (United States)

    Causey, W.; Sohoni, V.

    1973-01-01

    An explicit guidance scheme is outlined which provides the appropriate energy management in order for the shuttle orbiter to reach any location within the required footprint. Considering the orbiter as entering the earth's atmosphere, expressions for the downrange, crossrange, and the time of the termination of the entry phase as functions of the control variables are developed. Performing an order-of-magnitude analysis of the terms in these expressions, only dominant terms are retained. Analytical expressions for the elements of the sensitivity matrix which represents the partial derivatives of the desired range with respect to control variables are formulated. Using the Gauss-Jordan inversion technique, the required change in guidance commands as a function of the deviations in the downrange and crossrange are explicitly computed.

  17. Review of soil contamination guidance

    Energy Technology Data Exchange (ETDEWEB)

    Mueller, M.A.; Kennedy, W.E. Jr.; Soldat, J.K.

    1981-08-01

    A review of existing and proposed radioactive soil contamination standards and guidance was conducted for United Nuclear Corporation (UNC), Office of Surplus Facilities Management. Information was obtained from both government agencies and other sources during a literature survey. The more applicable standards were reviewed, evaluated, and summarized. Information pertaining to soil contamination for both facility operation and facility decommissioning was obtained from a variety of sources. These sources included: the Code of Federal Regulations, regulatory guides, the Federal Register, topical reports written by various government agencies, topical reports written by national laboratories, and publications from the American National Standards Institute (ANSI). It was difficult to directly compare the standards and guidance obtained from these sources since each was intended for a specific situation and different units or bases were used. However, most of the information reviewed was consistent with the philosophy of maintaining exposures at levels as low as reasonably achievable (ALARA).

  18. Teleautonomous guidance for mobile robots

    Science.gov (United States)

    Borenstein, J.; Koren, Y.

    1990-01-01

    Teleautonomous guidance (TG), a technique for the remote guidance of fast mobile robots, has been developed and implemented. With TG, the mobile robot follows the general direction prescribed by an operator. However, if the robot encounters an obstacle, it autonomously avoids collision with that obstacle while trying to match the prescribed direction as closely as possible. This type of shared control is completely transparent and transfers control between teleoperation and autonomous obstacle avoidance gradually. TG allows the operator to steer vehicles and robots at high speeds and in cluttered environments, even without visual contact. TG is based on the virtual force field (VFF) method, which was developed earlier for autonomous obstacle avoidance. The VFF method is especially suited to the accommodation of inaccurate sensor data (such as that produced by ultrasonic sensors) and sensor fusion, and allows the mobile robot to travel quickly without stopping for obstacles.

  19. Microfluidic control of axonal guidance

    Science.gov (United States)

    Gu, Ling; Black, Bryan; Ordonez, Simon; Mondal, Argha; Jain, Ankur; Mohanty, Samarendra

    2014-10-01

    The precision of axonal pathfinding and the accurate formation of functional neural circuitry are crucial for an organism during development as well as during adult central and peripheral nerve regeneration. While chemical cues are believed to be primarily responsible for axonal pathfinding, we hypothesize that forces due to localized fluid flow may directly affect neuronal guidance during early organ development. Here, we report direct evidence of fluid flow influencing axonal migration, producing turning angles of up to 90°. Microfluidic flow simulations indicate that an axon may experience significant bending force due to cross-flow, which may contribute to the observed axonal turning. This method of flow-based guidance was successfully used to fasciculate one advancing axon onto another, showcasing the potential of this technique to be used for the formation of in vitro neuronal circuits.

  20. 2011 Army Strategic Planning Guidance

    Science.gov (United States)

    2011-03-25

    TESI ) of 22,000 Soldiers, the Army’s total force by the end of the mid-term period is programmed to be 520K (AC). We will achieve a more...dwell ratios, extending TESI authority to adequately man deploying units and sustain the All-Volunteer Force, right-sizing the generating force, and... TESI Temporary End-Strength Increase WMD Weapons of Mass Destruction 2011 ARMY STRATEGIC PLANNING GUIDANCE Page 19 2011

  1. Current materiality guidance for auditors

    OpenAIRE

    McKee, Thomas E.; Eilifsen, Aasmund

    2000-01-01

    Auditors have to make materiality judgments on every audit. This is a difficult process, as both quantitative and qualitative factors have to be evaluated. Additionally, there is no formal guidance for how to implement the materiality concepts discussed in the auditing standards. Although they are sometimes difficult to make, good materiality judgments are crucial for the conduct of a successful audit as poor judgments can result in an audit that is ineffective and/or inefficient. This report...

  2. Treatment needs and adverse events related to dental treatment under general anesthesia for individuals with autism.

    Science.gov (United States)

    Rada, Robert E

    2013-08-01

    Individuals with autism can be quite challenging to treat in a routine dental-office setting, especially when extensive dental treatment and disruptive behavioral issues exist. Individuals with autism may also be at higher risk for oral disease. Frequently, general anesthesia is the only method to facilitate completion of the needed dental treatment. General anesthesia is not without complications, and unique occurrences are a necessary consideration for special-needs populations. In addition, behavior challenges may occur which can be disruptive to hospital staff. This article describes treatment needs and determines adverse events during the perioperative period for individuals with autism who have had general anesthesia for comprehensive dental treatment in the hospital.

  3. Qualitative description of dental hygiene practices within oral health and dental care perspectives of Mexican-American adults and teenagers.

    Science.gov (United States)

    Maupome, Gerardo; Aguirre-Zero, Odette; Westerhold, Chi

    2015-01-01

    The objectives of this study were to identify dental hygiene themes voiced by adults and teenagers of Mexican origin [or Mexican Americans (MAs)] and place these themes within the larger landscape of oral health and dental care perceptions. Interviews with urban-based MAs were analyzed to identify barriers, beliefs, and behaviors influencing engagement in dental hygiene practices. Adult (n = 16, ages 33-52) and teenage (n = 17, ages 14-19) MAs reported themes pertaining to structural factors (financial and economic-related barriers, the dual challenges of reduced access to care vis-à-vis successfully navigating the dental care system, and the effects of reduced social support derived from migration) and to individual factors (different agendas between MAs and health systems for dental care utilization and indications for oral self-care, including limited dental hygiene instruction from professionals and larger impacts from school-based and mass media). Also, prior experiences with dental hygiene, prevention, and associated themes were characterized by a range of attitudes from fatalistic to highly determined agency. Good family upbringing was instrumental for appropriate dental hygiene, anteceding good oral health; and outlining a loose structure of factors affecting oral health such as diet, having "weak" teeth, or personal habits. Themes from adults and teenagers in the Midwest United States were generally similar to other groups of MA parents and younger children. Dental hygiene was not salient relative to other oral health and dental care matters. Several opportunities for improvement of knowledge and enhancing motivation for dental hygiene practices were identified, both within and outside professional resources. © 2014 American Association of Public Health Dentistry.

  4. Equine dental advances.

    Science.gov (United States)

    Greene, S K

    2001-08-01

    The reintroduction and development of safe motorized instruments, the increased availability of continuing education, and the understanding and implementation of appropriate procedures allow practitioners to provide better dental care. Veterinarians realize that sedation, analgesia, a full-mouth speculum, and proper instrumentation are necessary to provide these services. Continued instrument design, future research, and new treatment and prophylactic protocols should have a positive impact on the future of equine dental health. New and rediscovered procedures for equilibrating equine occlusion are allowing horses to masticate more efficiently, carry a bit more comfortably, and experience improved performance. The horse, the horse owner, and the veterinary profession all benefit from providing complete equine dental care.

  5. Dental pulp stem cells

    DEFF Research Database (Denmark)

    Ashri, N. Y.; Ajlan, S. A.; Aldahmash, Abdullah M.

    2015-01-01

    Inflammatory periodontal disease is a major cause of loss of tooth-supporting structures. Novel approaches for regeneration of periodontal apparatus is an area of intensive research. Periodontal tissue engineering implies the use of appropriate regenerative cells, delivered through a suitable...... scaffold, and guided through signaling molecules. Dental pulp stem cells have been used in an increasing number of studies in dental tissue engineering. Those cells show mesenchymal (stromal) stem cell-like properties including self-renewal and multilineage differentiation potentials, aside from...... an updated review on dental pulp stem cells and their applications in periodontal regeneration, in combination with different scaffolds and growth factors....

  6. Optimization of dental implantation

    Science.gov (United States)

    Dol, Aleksandr V.; Ivanov, Dmitriy V.

    2017-02-01

    Modern dentistry can not exist without dental implantation. This work is devoted to study of the "bone-implant" system and to optimization of dental prostheses installation. Modern non-invasive methods such as MRI an 3D-scanning as well as numerical calculations and 3D-prototyping allow to optimize all of stages of dental prosthetics. An integrated approach to the planning of implant surgery can significantly reduce the risk of complications in the first few days after treatment, and throughout the period of operation of the prosthesis.

  7. Feline dental disease.

    Science.gov (United States)

    Frost, P; Williams, C A

    1986-09-01

    Periodontal disease and chronic gingivitis/stomatitis are the most common feline dental diseases. With routine dental care and increased emphasis on home oral hygiene, these diseases can be controlled. Cats can be seen with a number of other dental disorders, and improved treatment methods such as restorations of early subgingival resorptive lesions, endodontic therapy, and orthodontic therapy can be performed successfully. More study and research are necessary about the gingivitis/stomatitis syndrome and subgingival resorptive lesions so that improved prevention and treatment recommendations can be made.

  8. [Factors associated with the incidence of dental caries among schoolchildren living in a municipality with low prevalence of dental caries].

    Science.gov (United States)

    Cypriano, Silvia; Hugo, Fernando Neves; Sciamarelli, Maria Cristina; Tôrres, Luísa Helena do Nascimento; Sousa, Maria da Luz Rosário de; Wada, Ronaldo Seichi

    2011-10-01

    The literature has shown that poorer levels of oral health are more frequently related to lower socio-economic status, consequently this cross-sectional and exploratory study conducted in 2003 investigated the association between caries and socio-economic factors, access to care, self-perception and habits among 266 12-year-old schoolchildren living in a community with low prevalence of dental caries. World Health Organization dental caries diagnosis methodology was used, in addition to the application of socio-economic and behavioral questionnaires. To identify the factors associated with dental caries, multivariate logistic regression was used and the dependent variable was synthesized into DMFT=0 and DMFT>0. Bearing in mind the limitations of a cross-sectional study, disliking the appearance of teeth, seeking dental care because of pain, studying at a state school and the head of the family being a manual worker were independently associated with dental caries. Even in a municipality with low prevalence of caries, the socio-economic status, dental care and self-perception were important factors in the incidence of dental caries among schoolchildren, and it is recommended that many factors in the bio-psychosocial context of multi-factorial dental caries should be investigated.

  9. Optimum PN Guidance Law for Maneuvering Target

    Institute of Scientific and Technical Information of China (English)

    SUN Bao-cai; QI Zai-kang

    2007-01-01

    An optimum PN guidance law for maneuvering target is developed using optimal control theory. By estimating the target position and setting the cost function, the guidance law can be deduced even without knowing the missile lateral acceleration. Since the quadratic cost function can make a compromise between the miss distance andthe control constraint, the optimum guidance law obtained is more general. Also, introduced line of sight rate as the input, a practical form of this guidance law is derived. The simulation results show the effectiveness of the guidance laws.

  10. The role of negative and positive memories in fear of dental treatment

    DEFF Research Database (Denmark)

    Staugaard, Søren Risløv; Jøssing, Marit; Krohn, Christina

    2016-01-01

    is influenced by memories of positive and negative childhood experiences with dental care. More specifically, we predicted that the emotional impact, sense of reliving, rehearsal, and belief in the accuracy of a negative treatment memory would be associated with increased dental fear, while positive treatment...... memories would show the opposite relation. Methods One hundred thirty-six young adults leaving childhood dental care responded to a online measures of dental fear, the most negative and most positive memory of dental treatment, and symptoms of posttraumatic stress disorder. Results Negative memories...... of events that involved pain and dentist behaviors such as impatience or scolding were frequently described and significantly associated with dental fear and symptoms of posttraumatic stress. Positive memories were more frequent, but did not show a consistent relationship with dental fear. Conclusions...

  11. The role of negative and positive memories in fear of dental treatment

    DEFF Research Database (Denmark)

    Staugaard, Søren Risløv; Jøssing, Marit; Krohn, Christina

    2016-01-01

    memories would show the opposite relation. Methods One hundred thirty-six young adults leaving childhood dental care responded to a online measures of dental fear, the most negative and most positive memory of dental treatment, and symptoms of posttraumatic stress disorder. Results Negative memories...... is influenced by memories of positive and negative childhood experiences with dental care. More specifically, we predicted that the emotional impact, sense of reliving, rehearsal, and belief in the accuracy of a negative treatment memory would be associated with increased dental fear, while positive treatment...... of events that involved pain and dentist behaviors such as impatience or scolding were frequently described and significantly associated with dental fear and symptoms of posttraumatic stress. Positive memories were more frequent, but did not show a consistent relationship with dental fear. Conclusions...

  12. Xilitol and dental caries.

    NARCIS (Netherlands)

    Smits, Marten Titus

    1987-01-01

    Dental caries is a widespread multifactoral disease. The main sympthons are minaral loss from tooth enemal and dentine, eventually leading to total destruction of the teeth, pain, impairment of mastication and problems with facial esthetics. ... Zie: Summary

  13. Xilitol and dental caries.

    NARCIS (Netherlands)

    Smits, Marten Titus

    1987-01-01

    Dental caries is a widespread multifactoral disease. The main sympthons are minaral loss from tooth enemal and dentine, eventually leading to total destruction of the teeth, pain, impairment of mastication and problems with facial esthetics. ... Zie: Summary

  14. Teaching with technology: learning outcomes for a combined dental and dental hygiene online hybrid oral histology course.

    Science.gov (United States)

    Gadbury-Amyot, Cynthia C; Singh, Amul H; Overman, Pamela R

    2013-06-01

    Among the challenges leaders in dental and allied dental education have faced in recent years is a shortage of well-qualified faculty members, especially in some specialty areas of dentistry. One proposed solution has been the use of technology. At the University of Missouri-Kansas City School of Dentistry, the departure of a faculty member who taught the highly specialized content in oral histology and embryology provided the opportunity to implement distance delivery of that course. The course is taught once a year to a combined group of dental and dental hygiene students. Previous to spring semester of 2009, the course was taught using traditional face-to-face, in-class lectures and multiple-choice examinations. During the spring semesters of 2009, 2010, and 2011, the course was taught using synchronous and asynchronous distance delivery technology. Outcomes for these courses (including course grades and performance on the National Board Dental Examination Part I) were compared to those from the 2006, 2007, and 2008 courses. Students participating in the online hybrid course were also given an author-designed survey, and the perceptions of the faculty member who made the transition from teaching the course in a traditional face-to-face format to teaching in an online hybrid format were solicited. Overall, student and faculty perceptions and student outcomes and course reviews have been positive. The results of this study can provide guidance to those seeking to use technology as one method of curricular delivery.

  15. Dental patients' use of the Internet.

    LENUS (Irish Health Repository)

    2009-12-19

    To determine the use of the Internet by patients attending a range of dental clinics to search for information regarding dental procedures, and also to investigate their interest in online dental consultations and \\'dental tourism\\'.

  16. Primate dental ecology: How teeth respond to the environment.

    Science.gov (United States)

    Cuozzo, Frank P; Ungar, Peter S; Sauther, Michelle L

    2012-06-01

    Teeth are central for the study of ecology, as teeth are at the direct interface between an organism and its environment. Recent years have witnessed a rapid growth in the use of teeth to understand a broad range of topics in living and fossil primate biology. This in part reflects new techniques for assessing ways in which teeth respond to, and interact with, an organism's environment. Long-term studies of wild primate populations that integrate dental analyses have also provided a new context for understanding primate interactions with their environments. These new techniques and long-term field studies have allowed the development of a new perspective-dental ecology. We define dental ecology as the broad study of how teeth respond to, or interact with, the environment. This includes identifying patterns of dental pathology and tooth use-wear, as they reflect feeding ecology, behavior, and habitat variation, including areas impacted by anthropogenic disturbance, and how dental development can reflect environmental change and/or stress. The dental ecology approach, built on collaboration between dental experts and ecologists, holds the potential to provide an important theoretical and practical framework for inferring ecology and behavior of fossil forms, for assessing environmental change in living populations, and for understanding ways in which habitat impacts primate growth and development. This symposium issue brings together experts on dental morphology, growth and development, tooth wear and health, primate ecology, and paleontology, to explore the broad application of dental ecology to questions of how living and fossil primates interact with their environments. Copyright © 2012 Wiley Periodicals, Inc.

  17. Setup of an in vitro test system for basic studies on biofilm behavior of mixed-species cultures with dental and periodontal pathogens.

    Directory of Open Access Journals (Sweden)

    Kerstin Standar

    Full Text Available BACKGROUND: Caries and periodontitis are important human diseases associated with formation of multi-species biofilms. The involved bacteria are intensively studied to understand the molecular basis of the interactions in such biofilms. This study established a basic in vitro single and mixed-species culture model for oral bacteria combining three complimentary methods. The setup allows a rapid screening for effects in the mutual species interaction. Furthermore, it is easy to handle, inexpensive, and reproducible. METHODS: Streptococcus mitis, S. salivarius and S. sanguinis, typical inhabitants of the healthy oral cavity, S. mutans as main carriogenic species, and Porphyromonas gingivalis, Fusobacterium nucleatum, Parvimonas micra, S. intermedius and Aggregatibacter actinomycetemcomitans as periodontitis-associated bacteria, were investigated for their biofilm forming ability. Different liquid growth media were evaluated. Safranin-staining allowed monitoring of biofilm formation under the chosen conditions. Viable counts and microscopy permitted investigation of biofilm behavior in mixed-species and transwell setups. FINDINGS: S. mitis, F. nucleatum, P. gingivalis and P. micra failed to form biofilm structures. S. mutans, S. sanguinis, S. intermedius and S. salivarius established abundant biofilm masses in CDM/sucrose. A. actinomycetemcomitans formed patchy monolayers. For in depth analysis S. mitis, S. mutans and A. actinomycetemcomitans were chosen, because i they are representatives of the physiological-, cariogenic and periodontitis-associated bacterial flora, respectively and ii their difference in their biofilm forming ability. Microscopic analysis confirmed the results of safranin staining. Investigation of two species combinations of S. mitis with either S. mutans or A. actinomycetemcomitans revealed bacterial interactions influencing biofilm mass, biofilm structure and cell viability. CONCLUSIONS: This setup shows safranin staining

  18. Analysing Interplanetary Probe Guidance Accuracy

    Directory of Open Access Journals (Sweden)

    S. V. Sukhova

    2016-01-01

    Full Text Available The paper presents a guidance accuracy analysis and estimates delta-v budget required to provide the trajectory correction maneuvers for direct interplanetary flights (without midcourse gravity assists. The analysis takes into consideration the orbital hyperbolic injection errors (depend on a selected launch vehicle and ascent trajectory and the uncertainties of midcourse correction maneuvers.The calculation algorithm is based on Monte Carlo simulation and Danby’s matrix methods (the matrizant of keplerian motion. Danby’s method establishes a link between the errors of the spacecraft state vectors at different flight times using the reference keplerian orbit matrizant. Utilizing the nominal trajectory parameters and the covariance matrix of launch vehicle injection errors the random perturbed orbits are generated and required velocity corrections are calculated. The next step is to simulate midcourse maneuver performance uncertainty using the midcourse maneuver covariance matrix. The obtained trajectory correction impulses and spacecraft position errors are statistically processed to compute required delta-v budget and dispersions ellipse parameters for different prediction intervals.As an example, a guidance accuracy analysis has been conducted for a 2022 mission to Mars and a Venus mission in 2026. The paper considers one and two midcourse correction options, as well as utilization of two different launch vehicles.The presented algorithm based on Monte Carlo simulation and Danby’s methods provides preliminary evaluation for midcourse corrections delta-v budget and spacecraft position error. The only data required for this guidance accuracy analysis are a reference keplerian trajectory and a covariance matrix of the injection errors. Danby’s matrix method allows us to take into account also the other factors affecting the trajectory thereby increasing the accuracy of analysis.

  19. Does haptic steering guidance instigate speeding? A driving simulator study into causes and remedies.

    Science.gov (United States)

    Melman, T; de Winter, J C F; Abbink, D A

    2017-01-01

    An important issue in road traffic safety is that drivers show adverse behavioral adaptation (BA) to driver assistance systems. Haptic steering guidance is an upcoming assistance system which facilitates lane-keeping performance while keeping drivers in the loop, and which may be particularly prone to BA. Thus far, experiments on haptic steering guidance have measured driver performance while the vehicle speed was kept constant. The aim of the present driving simulator study was to examine whether haptic steering guidance causes BA in the form of speeding, and to evaluate two types of haptic steering guidance designed not to suffer from BA. Twenty-four participants drove a 1.8m wide car for 13.9km on a curved road, with cones demarcating a single 2.2m narrow lane. Participants completed four conditions in a counterbalanced design: no guidance (Manual), continuous haptic guidance (Cont), continuous guidance that linearly reduced feedback gains from full guidance at 125km/h towards manual control at 130km/h and above (ContRF), and haptic guidance provided only when the predicted lateral position was outside a lateral bandwidth (Band). Participants were familiarized with each condition prior to the experimental runs and were instructed to drive as they normally would while minimizing the number of cone hits. Compared to Manual, the Cont condition yielded a significantly higher driving speed (on average by 7km/h), whereas ContRF and Band did not. All three guidance conditions yielded better lane-keeping performance than Manual, whereas Cont and ContRF yielded lower self-reported workload than Manual. In conclusion, continuous steering guidance entices drivers to increase their speed, thereby diminishing its potential safety benefits. It is possible to prevent BA while retaining safety benefits by making a design adjustment either in lateral (Band) or in longitudinal (ContRF) direction. Copyright © 2016. Published by Elsevier Ltd.

  20. Precision optical navigation guidance system

    Science.gov (United States)

    Starodubov, D.; McCormick, K.; Nolan, P.; Johnson, D.; Dellosa, M.; Volfson, L.; Fallahpour, A.; Willner, A.

    2016-05-01

    We present the new precision optical navigation guidance system approach that provides continuous, high quality range and bearing data to fixed wing aircraft during landing approach to an aircraft carrier. The system uses infrared optical communications to measure range between ship and aircraft with accuracy and precision better than 1 meter at ranges more than 7.5 km. The innovative receiver design measures bearing from aircraft to ship with accuracy and precision better than 0.5 mRad. The system provides real-time range and bearing updates to multiple aircraft at rates up to several kHz, and duplex data transmission between ship and aircraft.

  1. Quality guidance and quality formation

    DEFF Research Database (Denmark)

    Poulsen, Carsten Stig; Juhl, Hans Jørn; Kristensen, Kai

    1996-01-01

    This paper presents an extension of the quality guidance model of Steenkamp and van Trijp that includes consumer quality formation processes. Quality expectations and quality experiences are seen as antecedents of perceived overall product quality conceptual model is applied using LISREL to a data...... set on Danish butter cookies. Five plausible models of the relation between expectation, experience and perceived product quality are estimated. Finally one model is selected on the basis of three criteria: chi-square, RMSEA and AIC: The results show a model where expectations are indirectly related...... to perceived quality through experience. Udgivelsesdato: APR...

  2. Quality guidance and quality formation

    DEFF Research Database (Denmark)

    Poulsen, Carsten Stig; Juhl, Hans Jørn; Kristensen, Kai

    1996-01-01

    This paper presents an extension of the quality guidance model of Steenkamp and van Trijp that includes consumer quality formation processes. Quality expectations and quality experiences are seen as antecedents of perceived overall product quality conceptual model is applied using LISREL to a data...... set on Danish butter cookies. Five plausible models of the relation between expectation, experience and perceived product quality are estimated. Finally one model is selected on the basis of three criteria: chi-square, RMSEA and AIC: The results show a model where expectations are indirectly related...... to perceived quality through experience. Udgivelsesdato: APR...

  3. Orthobiologic Interventions Using Ultrasound Guidance.

    Science.gov (United States)

    Malanga, Gerard; Abdelshahed, Dena; Jayaram, Prathap

    2016-08-01

    The application of regenerative therapies for the treatment of musculoskeletal conditions has emerged over the last decade with recent acceleration. These include prolotherapy, platelet-rich plasma, and mesenchymal stem cell therapy. These strategies augment the body's innate physiology to heal pathologic processes. This article presents an overview of platelet-rich plasma and mesenchymal stem cell therapy for the treatment of musculoskeletal injuries. A brief literature review is included, as are techniques for the use of ultrasound guidance to assist with these procedures. Copyright © 2016 Elsevier Inc. All rights reserved.

  4. Knowledge, Attitude, and Practices of Dental Surgeons in managing Child Patients

    Science.gov (United States)

    Siddiqui, Talha Mufeed; Khan, Rabia; Batool, Kanza

    2016-01-01

    The aim of the study was to evaluate the knowledge, attitude, and practices of dental surgeons in the city of Karachi providing treatment to pediatric patients. A cross-sectional study was conducted to evaluate the knowledge, attitude, and practices of dental surgeons in the city of Karachi providing treatment to pediatric patients. A cluster-sampling technique was used and 200 dental surgeons from six different dental institutions were selected. A self-constructed questionnaire was distributed to the dental surgeons that comprised 20 closed-ended questions. The data was entered and analyzed for frequency and percentages by using Statistical Package for the Social Sciences (SPSS) version 19. The results showed that 76 (38%) dental surgeons took the responsibility of managing pediatric patient when given; 68 (34%) dental surgeons allowed the parents in the clinic; 111 (55.5%) dental surgeons are of the view that colorful and fun environment in dental clinic make the child at ease; 59 (29.5%) always demonstrate the dental procedure to the child to eradicate imaginary fears; 94 (47.0%) dental surgeons preferred the child to be treated in general anesthesia (GA) to avoid difficult behavior of the child; 135 (67.5%) dental surgeons did not show syringe needle or any instrument to the child. All the members of dental profession must be aware of patient perceptions, preferences, and fear to meet patient’s needs. Dental studies should include guidelines and techniques to train the upcoming dentists for excellent practice in pediatric dentistry. How to cite this article Wali A, Siddiqui TM, Khan R, Batool K. Knowledge, Attitude, and Practices of Dental Surgeons in managing Child Patients. Int J Clin Pediatr Dent 2016;9(4):372-378. PMID:28127171

  5. Dental Students' Knowledge of Resources for LGBT Persons: Findings from Three Dental Schools.

    Science.gov (United States)

    Feng, Xiaoying; Mugayar, Leda; Perez, Edna; Nagasawa, Pamela R; Brown, David G; Behar-Horenstein, Linda S

    2017-01-01

    Recently, there has been increased attention to including cultural diversity in the education of health professionals, including concern for lesbian, gay, bisexual, and transgender (LGBT) inclusion and visibility. Studies regarding cultural exposure and acceptance of LGBT populations have been concentrated in medicine, with findings showing that medical providers often graduate having missed the preparation required to care for LGBT persons. A visible, comprehensive, culturally competent environment in dental schools would help ensure that all oral health professionals and students are aware of services available to address the particular needs of LGBT students. The aims of this survey-based study conducted in 2015-16 were to determine dental students' perceptions regarding LGBT students' needs and to assess dental students' knowledge of resources for LGBT persons at three U.S. dental schools, one each in the Midwest, West, and South. Of the 849 students invited to participate, 364 completed the survey (338 dental, 26 dental hygiene), for an overall response rate of 43%. The response rate at individual schools ranged from 30% to 55%. The results showed perceptions of insufficient LGBT information, resources, and support at these institutions, especially at the Western school. There were significant differences among the three schools, with students at the Western school more than the other two schools perceiving that their institution was less aware of whether it met the academic, social support, and spiritual needs of LGBT students. There were no significant differences between LGBT and non-LGBT students' perceptions. The authors urge dental school administrators to explore the degree to which their programs teach respectful and caring behavior towards LGBT students and, by extension, LGBT patient populations.

  6. Reduced dental calcium expression and dental mass in chronic sleep deprived rats: Combined EDS, TOF-SIMS, and micro-CT analysis

    Energy Technology Data Exchange (ETDEWEB)

    Kuo, Yi-Jie [Department of Orthopedics, Taipei Medical University Hospital, Taipei 110, Taiwan (China); Huang, Yung-Kai [School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan (China); Chou, Hsiu-Chu; Pai, Man-Hui; Lee, Ai-Wei [Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan (China); Mai, Fu-Der [Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan (China); Chang, Hung-Ming, E-mail: taiwanzoo@gmail.com [Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan (China)

    2015-08-01

    Highlights: • The growth of teeth is closely regulated by the circadian rhythmicity. • Sleep deprivation significantly disrupts the circadian regulation. • Sleep deprivation reduces the dental calcium level and impairs dental intensity. • This study highlights for the first time that sleep is essential for dental structure. • Establishing satisfactory sleep behavior may be a helpful strategy to prevent dental disability. - Abstract: Teeth are the hardest tissue in the body. The growth of teeth is closely regulated by circadian rhythmicity. Considering that sleep deprivation (SD) is a severe condition that disrupts normal circadian rhythmicity, this study was conducted to determine whether calcium expression (the major element participating in teeth constitution), and dental mass would be significantly impaired following SD. Adolescent rats subjected to 3 weeks of SD were processed for energy dispersive spectrum (EDS), time-of-flight secondary ion mass spectrometry (TOF-SIMS), and micro-computed tomography (micro-CT) analyses. The EDS and TOF-SIMS results indicated that high calcium intensity was detected in both the upper and lower incisors of untreated rats. Micro-CT analysis corresponded closely with spectral data in which an enhanced dental mass was calculated in intact animals. However, following SD, both calcium expression and the dental mass were remarkably decreased to nearly half those of the untreated values. Because SD plays a detrimental role in impairing dental structure, establishing satisfactory sleep behavior would therefore serve as a crucial strategy for preventing or improving prevalent dental dysfunctions.

  7. Diagnostic Methods for Dental Caries Used by Private Dental ...

    African Journals Online (AJOL)

    2017-03-06

    Mar 6, 2017 ... types of diagnostic tools and methods used by private dental practitioners in. Ankara for .... and treatment approaches, and patient records. ..... detection aids. ... approximal and occlusal dental caries in a low risk population.

  8. History of dental hygiene research.

    Science.gov (United States)

    Bowen, Denise M

    2013-01-01

    Dental hygiene is defined as the science and practice of the recognition, treatment and prevention of oral diseases. The history of dental hygiene research is considered in the context of the development of the discipline and an emerging infrastructure. Research-related events supporting the growth and maturation of the profession are considered from the early years to the most recent. The benefits of preventive oral health services provided by dental hygienists have been supported by research, and the practice of dental hygiene has expanded as a result of research findings since its inception 100 years ago. Dental hygienists' engagement in research, however, did not begin until the 1960s as research associates or administrators, primarily with dental researchers as primary investigators. The Journal of Dental Hygiene (JDH) has provided information for dental hygiene practice since 1927, and has been the primary venue for dissemination of dental hygiene research since 1945. Graduate education in dental hygiene at the master's degree level and the work of early dental hygiene researchers led to the first conference on dental hygiene research in 1982. Over 30 years later, dental hygiene has established a meta-paradigm and defined conceptual models, built an initial infrastructure to support research endeavors and contributed much to the development of dental hygiene as a unique discipline. A doctoral degree in the discipline, continued theory-based research, initiatives to foster collaborations between dental hygiene and other researchers and enhanced capabilities to attract funding to support large scale studies are goals that must be attained through the efforts of future researchers to address the needs for additional development in the discipline of dental hygiene. Dental hygiene research supports the growing discipline and its value to society.

  9. Friction and wear behaviors of dental zirconia ceramics%牙科氧化锆瓷摩擦磨损性能的研究

    Institute of Scientific and Technical Information of China (English)

    宋海燕; 曾剑玉; 司文捷

    2014-01-01

    目的:研究牙科氧化锆瓷的摩擦磨损性能以及与天然牙釉质摩擦磨损性能匹配情况。方法微摩擦磨损试验机上,以滑石瓷为对磨物,人工唾液润滑下对Upcera ST 和 Zenostar Zr Translucent氧化锆瓷、牙釉质和饰面瓷进行摩擦磨损实验。实验前,用激光共聚焦显微镜测试件表面粗糙度Ra;实验结束后,光学显微镜下观察滑石瓷磨斑形貌、测量滑石瓷磨斑面积;激光共聚焦显微镜测量试件磨斑宽度;扫描电镜下观察试件磨斑的微观形貌。采用单因素方差分析进行统计学分析。结果饰面瓷的磨斑宽度大于其它3种材料(P<0.01),饰面瓷对磨物滑石瓷磨斑面积大于氧化锆瓷和牙釉质(P<0.05)。结论与饰面瓷对比,氧化锆瓷具有更佳耐磨性及较低对磨物磨损,并且与天然牙釉质的磨擦学性能相似。%Objective To evaluate the zirconia ceramics ’ friction and wear behaviors to compare with natural enamel. Methods In a micro friction and wear testing apparatus, the friction and wear tests on Upcera ST,Zenostar Zr Translucent,teeth enamel and veneering ceramic were carried out under artificial saliva lubrication condition and steatite served as antagonist. Before wear test, surface roughness ( Ra) was determined by laser scanning confocal microscope. After test , the wear morphology of steatite was observed under light microscope and the wear area measured. The width of the wear area was measured by laser scanning confocal microscope and the scanning electron microscopy was used to observe the wear surface micro-morphology of the ceramics and enamel. Statistical analysis was performed using one-way analysis of variance (ANOVA). Results The width of the wear area on the veneering ceramic was greater than other three materials(P <0. 01). Veneering ceramic caused significantly higher antagonist wear than zirconia and teeth enamel ( P< 0. 05 ) . Conclusion Zirconia ceramics yielded

  10. DENTAL HOT-COLD SENSITIVITY AND TRAUMATIC DENTAL INJURIES

    OpenAIRE

    Traebert, Jefferson; Martins,Luiz Gustavo Teixeira; Traebert, Eliane Silva de Azevedo; Bortoluzzi, Marcelo Carlos

    2014-01-01

    AIM: Although several studies have indicated negative impacts of traumatic dental injuries on children’s quality of life, virtually none of them have explored the possible association between them and the occurrence and dental hot-cold sensitivity. The aim of this study was to study the possible association of hot-cold dental sensitivity and history of traumatic dental injuries. MATERIAL AND METHODS: A cross-sectional study involving a representative sample of 11- to 14-year-old schoolchildre...

  11. Flight Guidance System Requirements Specification

    Science.gov (United States)

    Miller, Steven P.; Tribble, Alan C.; Carlson, Timothy M.; Danielson, Eric J.

    2003-01-01

    This report describes a requirements specification written in the RSML-e language for the mode logic of a Flight Guidance System of a typical regional jet aircraft. This model was created as one of the first steps in a five-year project sponsored by the NASA Langley Research Center, Rockwell Collins Inc., and the Critical Systems Research Group of the University of Minnesota to develop new methods and tools to improve the safety of avionics designs. This model will be used to demonstrate the application of a variety of methods and techniques, including safety analysis of system and subsystem requirements, verification of key properties using theorem provers and model checkers, identification of potential sources mode confusion in system designs, partitioning of applications based on the criticality of system hazards, and autogeneration of avionics quality code. While this model is representative of the mode logic of a typical regional jet aircraft, it does not describe an actual or planned product. Several aspects of a full Flight Guidance System, such as recovery from failed sensors, have been omitted, and no claims are made regarding the accuracy or completeness of this specification.

  12. Management of patients taking rivaroxaban for dental treatments

    Directory of Open Access Journals (Sweden)

    Adrian Curto

    2017-01-01

    Full Text Available There are several novel anticoagulant drugs that are being increasingly used as an alternative to warfarin and acenocoumarol. Novel oral anticoagulants have emerged in recent years to overcome some of the drawbacks of classic oral anticoagulants. Rivaroxaban, dabigatran, apixaban, and edoxaban were approved by the Food and Drug Administration and European Medicines Agency. This paper examines the available evidence regarding rivaroxaban and sets out proposals for the clinical guidance of dental practitioners treating these patients in primary dental care. Literature search was conducted through May 2016 for publications in the ISI Web of Knowledge, PubMed, and Cochrane Library using the keywords, "rivaroxaban," "dabigatran," "apixaban," "edoxaban," "new oral anticoagulants," "novel oral anticoagulants," "bleeding," and "dental treatment." For patients requiring minor oral surgery procedures, interruption of rivaroxaban is not generally necessary while a higher control of bleeding and discontinuation of the drug (at least 24 h should be requested before invasive surgical procedure, depending on renal functionality. Their increased use means that oral care clinicians should have a sound understanding of the mechanism of action, pharmacology, reversal strategies, and management of bleeding in patients taking rivaroxaban. Currently, recommendations are based on poor quality scientific data and clinical trials are required to establish best evidence-based practice guidance.

  13. Bulimia and Anorexia Nervosa in Dental and Dental Hygiene Curricula.

    Science.gov (United States)

    Gross, Karen B. W.; And Others

    1990-01-01

    Dentists and dental hygienists are in a unique position to identify an eating disorder patient from observed oral manifestations and to refer the patient for psychological therapy. The inclusion of information on general and oral complications of bulimia and anorexia nervosa in dental and dental hygiene curriculum was examined. (MLW)

  14. Bulimia and Anorexia Nervosa in Dental and Dental Hygiene Curricula.

    Science.gov (United States)

    Gross, Karen B. W.; And Others

    1990-01-01

    Dentists and dental hygienists are in a unique position to identify an eating disorder patient from observed oral manifestations and to refer the patient for psychological therapy. The inclusion of information on general and oral complications of bulimia and anorexia nervosa in dental and dental hygiene curriculum was examined. (MLW)

  15. Optimal terminal guidance for exoatmospheric interception

    Directory of Open Access Journals (Sweden)

    Yu Wenbin

    2016-08-01

    Full Text Available In this study, two optimal terminal guidance (OTG laws, one of which takes into account the final velocity vector constraint, are developed for exoatmospheric interception using optimal control theory. In exoatmospheric interception, because the proposed guidance laws give full consideration to the effect of gravity, they consume much less fuel than the traditional guidance laws while requiring a light computational load. In the development of the guidance laws, a unified optimal guidance problem is put forward, where the final velocity vector constraint can be considered or neglected by properly adjusting a parameter in the cost function. To make this problem analytically solvable, a linear model is used to approximate the gravity difference, the difference of the gravitational accelerations of the target and interceptor. Additionally, an example is provided to show that some achievements of this study can be used to significantly improve the fuel efficiency of the pulsed guidance employed by the interceptor whose divert thrust level is fixed.

  16. Optimal terminal guidance for exoatmospheric interception

    Institute of Scientific and Technical Information of China (English)

    Yu Wenbin; Chen Wanchun; Yang Liang; Liu Xiaoming; Zhou Hao

    2016-01-01

    In this study, two optimal terminal guidance (OTG) laws, one of which takes into account the final velocity vector constraint, are developed for exoatmospheric interception using optimal control theory. In exoatmospheric interception, because the proposed guidance laws give full consideration to the effect of gravity, they consume much less fuel than the traditional guidance laws while requiring a light computational load. In the development of the guidance laws, a unified optimal guidance problem is put forward, where the final velocity vector constraint can be consid-ered or neglected by properly adjusting a parameter in the cost function. To make this problem ana-lytically solvable, a linear model is used to approximate the gravity difference, the difference of the gravitational accelerations of the target and interceptor. Additionally, an example is provided to show that some achievements of this study can be used to significantly improve the fuel efficiency of the pulsed guidance employed by the interceptor whose divert thrust level is fixed.

  17. Agave Chewing and Dental Wear: Evidence from Quids.

    Directory of Open Access Journals (Sweden)

    Emily E Hammerl

    Full Text Available Agave quid chewing is examined as a potential contributing behavior to hunter-gatherer dental wear. It has previously been hypothesized that the contribution of Agave quid chewing to dental wear would be observed in communities wherever phytolith-rich desert succulents were part of subsistence. Previous analysis of coprolites from a prehistoric agricultural site, La Cueva de los Muertos Chiquitos in Durango, Mexico, showed that Agave was a consistent part of a diverse diet. Therefore, quids recovered at this site ought to be useful materials to test the hypothesis that dental wear was related to desert succulent consumption. The quids recovered from the site were found to be largely derived from chewing Agave. In this study, the quids were found to be especially rich in phytoliths, and analysis of dental casts made from impressions left in the quids revealed flat wear and dental attrition similar to that of Agave-reliant hunter-gatherers. Based on evidence obtained from the analysis of quids, taken in combination with results from previous studies, it is determined that Agave quid chewing was a likely contributing factor to dental wear in this population. As such, our method provides an additional avenue of dental research in areas where quids are present.

  18. Agave Chewing and Dental Wear: Evidence from Quids.

    Science.gov (United States)

    Hammerl, Emily E; Baier, Melissa A; Reinhard, Karl J

    2015-01-01

    Agave quid chewing is examined as a potential contributing behavior to hunter-gatherer dental wear. It has previously been hypothesized that the contribution of Agave quid chewing to dental wear would be observed in communities wherever phytolith-rich desert succulents were part of subsistence. Previous analysis of coprolites from a prehistoric agricultural site, La Cueva de los Muertos Chiquitos in Durango, Mexico, showed that Agave was a consistent part of a diverse diet. Therefore, quids recovered at this site ought to be useful materials to test the hypothesis that dental wear was related to desert succulent consumption. The quids recovered from the site were found to be largely derived from chewing Agave. In this study, the quids were found to be especially rich in phytoliths, and analysis of dental casts made from impressions left in the quids revealed flat wear and dental attrition similar to that of Agave-reliant hunter-gatherers. Based on evidence obtained from the analysis of quids, taken in combination with results from previous studies, it is determined that Agave quid chewing was a likely contributing factor to dental wear in this population. As such, our method provides an additional avenue of dental research in areas where quids are present.

  19. Fatigue of Dental Implants: Facts and Fallacies

    Directory of Open Access Journals (Sweden)

    Keren Shemtov-Yona

    2016-05-01

    Full Text Available Dental implants experience rare yet problematic mechanical failures such as fracture that are caused, most often, by (time-dependent metal fatigue. This paper surveys basic evidence about fatigue failure, its identification and the implant’s fatigue performance during service. We first discuss the concept of dental implant fatigue, starting with a review of basic concepts related to this failure mechanism. The identification of fatigue failures using scanning electron microscopy follows, to show that this stage is fairly well defined. We reiterate that fatigue failure is related to the implant design and its surface condition, together with the widely varying service conditions. The latter are shown to vary to an extent that precludes devising average or representative conditions. The statistical nature of the fatigue test results is emphasized throughout the survey to illustrate the complexity in evaluating the fatigue behavior of dental implants from a design perspective. Today’s fatigue testing of dental implants is limited to ISO 14801 standard requirements, which ensures certification but does not provide any insight for design purposes due to its limited requirements. We introduce and discuss the random spectrum loading procedure as an alternative to evaluate the implant’s performance under more realistic conditions. The concept is illustrated by random fatigue testing in 0.9% saline solution.

  20. Panoramic Dental X-Ray

    Science.gov (United States)

    ... Physician Resources Professions Site Index A-Z Panoramic Dental X-ray Panoramic dental x-ray uses a ... Your e-mail address: Personal message (optional): Bees: Wax: Notice: RadiologyInfo respects your privacy. Information entered here ...

  1. Dental modification in the past

    DEFF Research Database (Denmark)

    Bennike, Pia; Alexandersen, Verner

    2003-01-01

    Skeleton remains from Denmark, Greenland, Faeroe Islands, dental care, drillling in the past, tooth extraction......Skeleton remains from Denmark, Greenland, Faeroe Islands, dental care, drillling in the past, tooth extraction...

  2. Medical and Dental Patient Issues

    Science.gov (United States)

    ... A RadiationAnswers.org Ask the Experts Medical and Dental Patient Issues What's My Risk? The risks of ... developed by our topic editors for this category: Dental-Patient Issues Medical CT Reference Books and Articles ...

  3. Dental plaque identification at home

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003426.htm Dental plaque identification at home To use the sharing ... that collects around and between teeth. The home dental plaque identification test shows where plaque builds up. ...

  4. Dental Health: The Basic Facts

    Science.gov (United States)

    Dental Health THE BASIC FACTS MULTIPLE SCLEROSIS Kim, diagnosed in 1986 People with a chronic disease may neglect their general health and wellness, research shows. Dental care is no exception. A tendency to focus ...

  5. Dental Care - Medicaid and Chip

    Data.gov (United States)

    U.S. Department of Health & Human Services — Dental health is an important part of peoples overall health. States are required to provide dental benefits to children covered by Medicaid and the Childrens Health...

  6. 77 FR 4469 - Dental Conditions

    Science.gov (United States)

    2012-01-30

    ... purposes. This amendment clarifies that principles governing determinations by VA's Veterans Benefits Administration (VBA) for service connection of dental conditions for the purpose of establishing eligibility for dental treatment by VA's Veterans Health Administration (VHA), apply only when VHA requests...

  7. Are the dental health needs of adults with illegal drug dependence being met by current service provision in the United Kingdom?: a literature review.

    Science.gov (United States)

    Hewson, Victoria; Wray, Jane

    2012-10-01

    This literature review outlines the current issues and debates relating to the dental health of adults with drug dependence. The dental health of adults with illegal drug dependence (IDD) continues to be under debate throughout dental practice, and the most appropriate model of care suitable to meet the high complex needs of this client group remains uncertain. The study aims to review and critically analyze available research relating to the oral health effects of illegal drug misuse and the dental health needs and status of adults with drug dependence. Second, it aims to identify and critically evaluate current models of dental service/care delivery, including relevant best practice guidance and potential barriers to dental access for adults with IDD. The available literature pertaining to dental health and adults with drug dependence are systematically reviewed and critically analyzed and evaluated in order to execute a rigorous investigation. The oral effects along with general medical complications associated with IDD are increasingly being recognized. There are substantive negative effects of IDD on oral health, particularly for those with opioid dependence; therefore, these clients have high complex dental needs and low use of dental services. Adults with drug dependence comprise a group with special dental needs and therefore need greater access to dental care than most people due to their high level of need. A high awareness of the implications for oral health care for adults with drug dependence is essential. Dental professionals have a key role in supporting the rehabilitation of these patients from potentially severe or fatal addictions. There is a distinct lack of national policy and guidance relating specifically to adults with drug dependence, and therefore, problems persist. Key findings and recommendations are presented to enhance the development of dental services for adults with IDD.

  8. International governmental agencies and career guidance

    OpenAIRE

    Conger, Stuart

    1999-01-01

    The international Organization for Economic Cooperation and Development (OECD), like many national and international organizations concerned with economic development believes that career guidance has an important role in promoting the development of a country's human resources. (Mapping the future: Young People and career guidance OECD, 1996). Generally the economic development agencies always recommend that career guidance services should be strengthened. Too frequently, however, they do no...

  9. DENTAL PULP TISSUE ENGINEERING

    Science.gov (United States)

    Demarco, FF; Conde, MCM; Cavalcanti, B; Casagrande, L; Sakai, V; Nör, JE

    2013-01-01

    Dental pulp is a highly specialized mesenchymal tissue, which have a restrict regeneration capacity due to anatomical arrangement and post-mitotic nature of odontoblastic cells. Entire pulp amputation followed by pulp-space disinfection and filling with an artificial material cause loss of a significant amount of dentin leaving as life-lasting sequelae a non-vital and weakened tooth. However, regenerative endodontics is an emerging field of modern tissue engineering that demonstrated promising results using stem cells associated with scaffolds and responsive molecules. Thereby, this article will review the most recent endeavors to regenerate pulp tissue based on tissue engineering principles and providing insightful information to readers about the different aspects enrolled in tissue engineering. Here, we speculate that the search for the ideal combination of cells, scaffolds, and morphogenic factors for dental pulp tissue engineering may be extended over future years and result in significant advances in other areas of dental and craniofacial research. The finds collected in our review showed that we are now at a stage in which engineering a complex tissue, such as the dental pulp, is no longer an unachievable and the next decade will certainly be an exciting time for dental and craniofacial research. PMID:21519641

  10. Degradability of dental ceramics.

    Science.gov (United States)

    Anusavice, K J

    1992-09-01

    The degradation of dental ceramics generally occurs because of mechanical forces or chemical attack. The possible physiological side-effects of ceramics are their tendency to abrade opposing dental structures, the emission of radiation from radioactive components, the roughening of their surfaces by chemical attack with a corresponding increase in plaque retention, and the release of potentially unsafe concentrations of elements as a result of abrasion and dissolution. The chemical durability of dental ceramics is excellent. With the exception of the excessive exposure to acidulated fluoride, ammonium bifluoride, or hydrofluoric acid, there is little risk of surface degradation of virtually all current dental ceramics. Extensive exposure to acidulated fluoride is a possible problem for individuals with head and/or neck cancer who have received large doses of radiation. Such fluoride treatment is necessary to minimize tooth demineralization when saliva flow rates have been reduced because of radiation exposure to salivary glands. Porcelain surface stains are also lost occasionally when abraded by prophylaxis pastes and/or acidulated fluoride. In each case, the solutes are usually not ingested. Further research that uses standardized testing procedures is needed on the chemical durability of dental ceramics. Accelerated durability tests are desirable to minimize the time required for such measurements. The influence of chemical durability on surface roughness and the subsequent effect of roughness on wear of the ceramic restorations as well as of opposing structures should also be explored on a standardized basis.

  11. Zirconia as a Dental Biomaterial

    OpenAIRE

    Alvaro Della Bona; Oscar E. Pecho; Rodrigo Alessandretti

    2015-01-01

    Ceramics are very important in the science of dental biomaterials. Among all dental ceramics, zirconia is in evidence as a dental biomaterial and it is the material of choice in contemporary restorative dentistry. Zirconia has been applied as structural material for dental bridges, crowns, inserts, and implants, mostly because of its biocompatibility, high fracture toughness, and radiopacity. However, the clinical success of restorative dentistry has to consider the adhesion to different subs...

  12. Zirconia as a Dental Biomaterial

    OpenAIRE

    Alvaro Della Bona; Pecho, Oscar E.; Rodrigo Alessandretti

    2015-01-01

    Ceramics are very important in the science of dental biomaterials. Among all dental ceramics, zirconia is in evidence as a dental biomaterial and it is the material of choice in contemporary restorative dentistry. Zirconia has been applied as structural material for dental bridges, crowns, inserts, and implants, mostly because of its biocompatibility, high fracture toughness, and radiopacity. However, the clinical success of restorative dentistry has to consider the adhesion to different subs...

  13. Hybrid Guidance System for Relative Navigation Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Future NASA architectures and missions will involve many distributed platforms that must work together. This in turn requires guidance, navigation and control...

  14. Perspectives on the dental school learning environment: theory X, theory Y, and situational leadership applied to dental education.

    Science.gov (United States)

    Connor, Joseph P; Troendle, Karen

    2007-08-01

    This article applies two well-known management and leadership models-Theory X and Theory Y, and Situational Leadership-to dental education. Theory X and Theory Y explain how assumptions may shape the behaviors of dental educators and lead to the development of "cop" and "coach" teaching styles. The Situational Leadership Model helps the educator to identify the teaching behaviors that are appropriate in a given situation to assist students as they move from beginner to advanced status. Together, these models provide a conceptual reference to assist in the understanding of the behaviors of both students and faculty and remind us to apply discretion in the education of our students. The implications of these models for assessing and enhancing the educational environment in dental school are discussed.

  15. Dental ethics and emotional intelligence.

    Science.gov (United States)

    Rosenblum, Alvin B; Wolf, Steve

    2014-01-01

    Dental ethics is often taught, viewed, and conducted as an intell enterprise, uninformed by other noncognitive factors. Emotional intelligence (EQ) is defined distinguished from the cognitive intelligence measured by Intelligence Quotient (IQ). This essay recommends more inclusion of emotional, noncognitive input to the ethical decision process in dental education and dental practice.

  16. Dental Hygiene Realpolitik Affecting Education.

    Science.gov (United States)

    Bader, James D.

    1991-01-01

    Current conditions in dental hygiene influencing professional education are discussed. Workplace/practice issues include dental hygiene care as a component of dental practice, content, effects, and quality of care, hygienist supply and demand, and job satisfaction. Professional issues include the knowledge base, definitions of practice, and…

  17. Panoramic Dental X-Ray

    Science.gov (United States)

    ... Physician Resources Professions Site Index A-Z Panoramic Dental X-ray Panoramic dental x-ray uses a very small dose of ... x-ray , is a two-dimensional (2-D) dental x-ray examination that captures the entire mouth ...

  18. Dental operatory design and equipment.

    Science.gov (United States)

    Floyd, M

    1993-08-01

    Improving and expanding the dental services of a practice can involve purchasing new equipment and even modifying or expanding the physical plant. Operatory design is important to the efficiency with which dental procedures can be performed. Equipment purchases to outfit the dental operatory should be made based on the specific needs and functions of a practice.

  19. Dental Care Every Day: A Caregiver's Guide. Practical Oral Care for People with Developmental Disabilities

    Science.gov (United States)

    National Institute of Dental and Craniofacial Research (NIDCR), 2009

    2009-01-01

    Taking care of someone with a developmental disability requires patience and skill. As a caregiver, you know this as well as anyone does. You also know how challenging it is to help that person with dental care. It takes planning, time, and the ability to manage physical, mental, and behavioral problems. Dental care isn't always easy, but you can…

  20. Treatment Needs and Adverse Events Related to Dental Treatment under General Anesthesia for Individuals with Autism

    Science.gov (United States)

    Rada, Robert E.

    2013-01-01

    Individuals with autism can be quite challenging to treat in a routine dental-office setting, especially when extensive dental treatment and disruptive behavioral issues exist. Individuals with autism may also be at higher risk for oral disease. Frequently, general anesthesia is the only method to facilitate completion of the needed dental…

  1. A multimethod investigation including direct observation of 3751 patient visits to 120 dental offices

    Directory of Open Access Journals (Sweden)

    Stephen Wotman

    2010-05-01

    Full Text Available Stephen Wotman1, Catherine A Demko1, Kristin Victoroff1, Joseph J Sudano2, James A Lalumandier11Department of Community Dentistry, Case Western Reserve University, School of Dental Medicine, Cleveland, OH, USA; 2Center of Health Care Research and Policy, Case Western Reserve University, School of Medicine, Cleveland, OH, USAAbstract: This report defines verbal interactions between practitioners and patients as core activities of dental practice. Trained teams spent four days in 120 Ohio dental practices observing 3751 patient encounters with dentists and hygienists. Direct observation of practice characteristics, procedures performed, and how procedure and nonprocedure time was utilized during patient visits was recorded using a modified Davis Observation Code that classified patient contact time into 24 behavioral categories. Dentist, hygienist, and patient characteristics were gathered by questionnaire. The most common nonprocedure behaviors observed for dentists were chatting, evaluation feedback, history taking, and answering patient questions. Hygienists added preventive counseling. We distinguish between preventive procedures and counseling in actual dental offices that are members of a practice-based research network. Almost a third of the dentist’s and half of the hygienist’s patient contact time is utilized for nonprocedure behaviors during patient encounters. These interactions may be linked to patient and practitioner satisfaction and effectiveness of self-care instruction.Keywords: dental practice, dental practice core activities, direct observation of dental practice, Dental Davis Observation Code, dentist, hygienist patient behaviors

  2. Dental amalgam: An update

    Directory of Open Access Journals (Sweden)

    Bharti Ramesh

    2010-01-01

    Full Text Available Dental amalgam has served as an excellent and versatile restorative material for many years, despite periods of controversy. The authors review its history, summarize the evidence with regard to its performance and offer predictions for the future of this material. The PubMed database was used initially; the reference list for dental amalgam featured 8641 articles and 13 publications dealing with recent advances in dental amalgam. A forward search was undertaken on selected articles and using some author names. For the present, amalgam should remain the material of choice for economic direct restoration of posterior teeth. When esthetic concerns are paramount, tooth-colored materials, placed meticulously, can provide an acceptable alternative. All alternative restorative materials and procedures, however, have certain limitations.

  3. Stereoscopy in Dental Education

    DEFF Research Database (Denmark)

    Murakami, Shumei; Verdonschot, Rinus G; Kreiborg, Sven

    2017-01-01

    The aim of this study was to investigate whether stereoscopy can play a meaningful role in dental education. The study used an anaglyph technique in which two images were presented separately to the left and right eyes (using red/cyan filters), which, combined in the brain, give enhanced depth...... perception. A positional judgment task was performed to assess whether the use of stereoscopy would enhance depth perception among dental students at Osaka University in Japan. Subsequently, the optimum angle was evaluated to obtain maximum ability to discriminate among complex anatomical structures. Finally...... practice, they did recognize its merits for education. These results suggest that using stereoscopic images in dental education can be quite valuable as stereoscopy greatly helped these students' understanding of the spatial relationships in complex anatomical structures....

  4. Dental implants: A review.

    Science.gov (United States)

    Guillaume, B

    2016-12-01

    A high number of patients have one or more missing tooth and it is estimated that one in four American subjects over the age of 74 have lost all their natural teeth. Many options exist to replace missing teeth but dental implants have become one of the most used biomaterial to replace one (or more) missing tooth over the last decades. Contemporary dental implants made with titanium have been proven safe and effective in large series of patients. This review considers the main historical facts concerned with dental implants and present the different critical factors that will ensure a good osseo-integration that will ensure a stable prosthesis anchorage. Copyright © 2016 Elsevier Masson SAS. All rights reserved.

  5. Dental Implant Complications.

    Science.gov (United States)

    Liaw, Kevin; Delfini, Ronald H; Abrahams, James J

    2015-10-01

    Dental implants have increased in the last few decades thus increasing the number of complications. Since many of these complications are easily diagnosed on postsurgical images, it is important for radiologists to be familiar with them and to be able to recognize and diagnose them. Radiologists should also have a basic understanding of their treatment. In a pictorial fashion, this article will present the basic complications of dental implants which we have divided into three general categories: biomechanical overload, infection or inflammation, and other causes. Examples of implant fracture, loosening, infection, inflammation from subgingival cement, failure of bone and soft tissue preservation, injury to surround structures, and other complications will be discussed as well as their common imaging appearances and treatment. Lastly, we will review pertinent dental anatomy and important structures that are vital for radiologists to evaluate in postoperative oral cavity imaging.

  6. Dental Trauma Guide

    DEFF Research Database (Denmark)

    Andreasen, Jens Ove; Lauridsen, Eva; Gerds, Thomas Alexander

    2012-01-01

    Diagnosis and treatment for traumatic dental injuries are very complex owing to the multiple trauma entities represented by six luxation types and nine fracture types affecting both the primary and the permanent dentition. When it is further considered that fracture and luxation injuries are often...... combined, the result is that more than 100 trauma scenarios exist, when the two dentitions are combined. Each of these trauma scenarios has a specific treatment demand and prospect for healing. With such a complexity in diagnosis and treatment, it is obvious that even experienced practitioners may have...... problems in selecting proper treatment for some of these trauma types. To remedy this situation, an Internet-based knowledge base consisting of 4000 dental trauma cases with long-term follow up is now available to the public and the professions on the Internet using the address http://www.DentalTrauma...

  7. Dental formulations for the prevention of dental erosion

    DEFF Research Database (Denmark)

    2010-01-01

    The invention relates to a therapeutic method for preventing and/or inhibiting dental erosion in a mammalian subject, and the provision of a dental care product for performing the method. The dental care product of the invention comprises a starch-degrading enzyme of E. C. 3.2.1.1, wherein said...... product comprises less than 1 wt.% ionic surfactant, and preferably is substantially free of endoprotease and/or lipase. The properties of the dental care product serve to prevent and/or inhibit dental erosion in a subject that typically results from repeated exposure of the patient's tooth surfaces...

  8. Dental formulations for the prevention of dental erosion

    DEFF Research Database (Denmark)

    2010-01-01

    The invention relates to a therapeutic method for preventing and/or inhibiting dental erosion in a mammalian subject, and the provision of a dental care product for performing the method. The dental care product of the invention comprises a starch-degrading enzyme of E. C. 3.2.1.1, wherein said...... product comprises less than 1 wt.% ionic surfactant, and preferably is substantially free of endoprotease and/or lipase. The properties of the dental care product serve to prevent and/or inhibit dental erosion in a subject that typically results from repeated exposure of the patient's tooth surfaces...

  9. Estresse e comportamento de colaboração em face do tratamento odontopediátrico Estrés y comportamiento de colaboración frente al tratamiento odontopediátrico Stress and collaboration behavior in facing pediatric dental treatment

    Directory of Open Access Journals (Sweden)

    Cármen Lúcia Cardoso

    2008-03-01

    niños, acompañantes y alumnos, condición poco favorecedora del aprendizaje de los alumnos y hubo, también, comportamientos de colaboración con la asistencia por parte de los niños, lo que se hizo presente en procedimientos de diferentes niveles de invasión.Current study, carried out at the Pediatric Dentistry Clinic, characterizes behavioral problems and stress manifestations in children undergoing dental treatment and identifies possible links between children's cooperation in dental procedures. Manifestations of stress in the accompanying person and in the dental student practicing the treatment were identified, showing the manner they influence the child behavior during the procedure. One hundred and ten children, 110 accompanying persons and 70 students participated in the study. The following instruments were applied: Child Stress Scale, Rutter Parent Scale A2, Lipp Stress Symptoms Inventory, and Dental Fear Survey. Since dental treatment was permeated with stress manifestations by children, accompanying persons and dentistry students, such conditions did not favor the dentistry students' learning or the children's cooperative behavior. Manifestations were present regardless of the invasiveness degree of the procedure.

  10. Epilepsy in dental practice.

    Science.gov (United States)

    Fitzpatrick, J J; McArdle, N S; Wilson, M H; Stassen, L F A

    2008-01-01

    Epilepsy is a neurological condition characterised by seizure activity. It has an approximate incidence of 1%. General dental practitioners will encounter these patients in practice. This article discusses the types of epilepsy, the medical management and considerations in dental management of epileptic patients. General recommendations are made, based on current evidence, with respect to prescribing of medications. The management of an epileptic seizure is discussed. Status epilepticus is a rare but serious complication of epileptic seizures. An easy-to-follow algorithm is provided to assist the practitioner in managing seizures.

  11. [Hardening of dental instruments].

    Science.gov (United States)

    Gerasev, G P

    1981-01-01

    The possibility of prolonging the service life of stomatological instruments by the local hardening of their working parts is discussed. Such hardening should be achieved by using hard and wear-resistant materials. The examples of hardening dental elevators and hard-alloy dental drills are given. New trends in the local hardening of instruments are the treatment of their working parts with laser beams, the application of coating on their surface by the gas-detonation method. The results of research work and trials are presented.

  12. Heavy smoking and severe dental caries in Indonesian men

    Directory of Open Access Journals (Sweden)

    Sumartono, Wasis

    2016-12-01

    Full Text Available BACKGROUND: In Indonesia, the prevalence of dental caries is 85%–99% and 67.4% of males aged 15 years or older are current users of tobacco. The aim of this study was to examine the association between heavy smoking and severe dental caries. METHODS: The authors used secondary data from Basic Health Research 2007. Respondents were Indonesian males aged 45–54 years (n = 34 534. Decay, Missing, Filled Teeth (DMFT value was used to define severe dental caries with 31.4% of respondents having DMFT value ≥ 8, the cutoff point of severe dental caries in this study. In addition, the enumerators recorded socio-demographic characteristics (age, socio-economic status, education, and job, tooth brushing and smoking behavior of respondents. Chi-square test was used to compare the prevalence of severe dental caries between heavy smokers (defined as Brinkman Index or BI ≥ 400 and never smokers (BI = 0. The multivariable logistic regression model was used to estimate adjusted association between heavy smoking and dental caries severity. RESULTS: The prevalence of severe dental caries among never smokers, light smokers (BI 1-399 and heavy smokers was 24.9%, 32.5%, and 38.7% respectively (p < 0.005. Compared to never smokers, the adjusted ORs of having severe dental caries among light smokers and heavy smokers were 1.45 (95% CI: 1.37-1.53 and 1.70 (95% CI: 1.59 – 1.81, respectively. CONCLUSIONS: Smoking is a risk factor of severe dental caries in Indonesian men with dose-and-response association revealed between the exposure and the outcome. Indonesian dentists, individually and collectively, have to participate in smoking prevention and control more actively.

  13. Perspectives on the dental school learning environment: putting theory X and theory Y into action in dental education.

    Science.gov (United States)

    Connor, Joseph P; Troendle, Karen

    2008-12-01

    Theory X and Theory Y are terms coined by Douglas McGregor to express the belief that managers' behaviors are shaped by their assumptions about the motivation of their subordinates. The theories were applied to dental education in a Perspectives article published in the August 2007 issue of the Journal of Dental Education. This article explains how those seemingly contradictory theories can be reconciled using the concept of the "emotional bank account" introduced by Stephen Covey in The 7 Habits of Highly Effective People. Understanding the underlying concept of an emotional bank account helps dental educators to bridge the generation gap between instructors, born during the baby boom period of 1946-63, and dental students, born after 1980, who are referred to as "Generation Y" or "millennials."

  14. 78 FR 37231 - Guidance for Industry; Guidance on Abbreviated New Drug Applications: Stability Testing of Drug...

    Science.gov (United States)

    2013-06-20

    ... HUMAN SERVICES Food and Drug Administration Guidance for Industry; Guidance on Abbreviated New Drug... the availability of a guidance for industry entitled ``ANDAs: Stability Testing of Drug Substances and... generic drug review, FDA is recommending that the generic drug industry follow the approach in...

  15. Guidance for evidence-informed policies about health systems: rationale for and challenges of guidance development.

    Directory of Open Access Journals (Sweden)

    Xavier Bosch-Capblanch

    Full Text Available In the first paper in a three-part series on health systems guidance, Xavier Bosch-Capblanch and colleagues examine how guidance is currently formulated in low- and middle-income countries, and the challenges to developing such guidance.

  16. Dental specialty, career preferences and their influencing factors among final year dental students in Saudi Arabia.

    Science.gov (United States)

    Halawany, Hassan Suliman; Binassfour, Abdullah Salman; AlHassan, Waleed Khalid; Alhejaily, Rami Ayed; Al Maflehi, Nassr; Jacob, Vimal; Abraham, Nimmi Biju

    2017-01-01

    graduate programs. There seems to be a need to promote mentoring activities and provide guidance and encouragement to pre-doctoral dental students in selecting the most appropriate specialty within their capability domain.

  17. Career transition and dental school faculty development program.

    Science.gov (United States)

    Hicks, Jeffery L; Hendricson, William D; Partida, Mary N; Rugh, John D; Littlefield, John H; Jacks, Mary E

    2013-11-01

    Academic dentistry, as a career track, is not attracting sufficient numbers of new recruits to maintain a corps of skilled dental educators. The Faculty Development Program (FDP) at the University of Texas Health Science Center at San Antonio Dental School received federal funds to institute a 7-component program to enhance faculty recruitment and retention and provide training in skills associated with success in academics including:(1) a Teaching Excellence and Academic Skills (TExAS)Fellowship, (2) training in research methodology,evidence-based practice research, and information management, (3) an annual dental hygiene faculty development workshop for dental hygiene faculty, (4) a Teaching Honors Program and Academic Dental Careers Fellowship to cultivate students' interest in educational careers, (5) an Interprofessional Primary Care Rotation,(6) advanced education support toward a master's degree in public health, and (7) a key focus of the entire FDP, an annual Career Transition Workshop to facilitate movement from the practice arena to the educational arm of the profession.The Career Transition Workshop is a cap stone for the FDP; its goal is to build a bridge from practice to academic environment. It will provide guidance for private practice, public health, and military dentists and hygienists considering a career transition into academic dentistry. Topics will be addressed including: academic culture, preparation for the academic environment,academic responsibilities, terms of employment,compensation and benefits, career planning, and job search / interviewing. Instructors for the workshop will include dental school faculty who have transitioned from the practice, military, and public health sectors into dental education.Objectives of the Overall Faculty Development Program:• Provide training in teaching and research skills,career planning, and leadership in order to address faculty shortages in dental schools and under representation of minority

  18. Pediatric dental sedation: challenges and opportunities.

    Science.gov (United States)

    Nelson, Travis M; Xu, Zheng

    2015-01-01

    High levels of dental caries, challenging child behavior, and parent expectations support a need for sedation in pediatric dentistry. This paper reviews modern developments in pediatric sedation with a focus on implementing techniques to enhance success and patient safety. In recent years, sedation for dental procedures has been implicated in a disproportionate number of cases that resulted in death or permanent neurologic damage. The youngest children and those with more complicated medical backgrounds appear to be at greatest risk. To reduce complications, practitioners and regulatory bodies have supported a renewed focus on health care quality and safety. Implementation of high fidelity simulation training and improvements in patient monitoring, including end-tidal carbon dioxide, are becoming recognized as a new standard for sedated patients in dental offices and health care facilities. Safe and appropriate case selection and appropriate dosing for overweight children is also paramount. Oral sedation has been the mainstay of pediatric dental sedation; however, today practitioners are administering modern drugs in new ways with high levels of success. Employing contemporary transmucosal administration devices increases patient acceptance and sedation predictability. While recently there have been many positive developments in sedation technology, it is now thought that medications used in sedation and anesthesia may have adverse effects on the developing brain. The evidence for this is not definitive, but we suggest that practitioners recognize this developing area and counsel patients accordingly. Finally, there is a clear trend of increased use of ambulatory anesthesia services for pediatric dentistry. Today, parents and practitioners have become accustomed to children receiving general anesthesia in the outpatient setting. As a result of these changes, it is possible that dental providers will abandon the practice of personally administering large amounts of

  19. Pediatric dental sedation: challenges and opportunities

    Directory of Open Access Journals (Sweden)

    Nelson TM

    2015-08-01

    Full Text Available Travis M Nelson, Zheng Xu Department of Pediatric Dentistry, University of Washington, Seattle, WA, USA Abstract: High levels of dental caries, challenging child behavior, and parent expectations support a need for sedation in pediatric dentistry. This paper reviews modern developments in pediatric sedation with a focus on implementing techniques to enhance success and patient safety. In recent years, sedation for dental procedures has been implicated in a disproportionate number of cases that resulted in death or permanent neurologic damage. The youngest children and those with more complicated medical backgrounds appear to be at greatest risk. To reduce complications, practitioners and regulatory bodies have supported a renewed focus on health care quality and safety. Implementation of high fidelity simulation training and improvements in patient monitoring, including end-tidal carbon dioxide, are becoming recognized as a new standard for sedated patients in dental offices and health care facilities. Safe and appropriate case selection and appropriate dosing for overweight children is also paramount. Oral sedation has been the mainstay of pediatric dental sedation; however, today practitioners are administering modern drugs in new ways with high levels of success. Employing contemporary transmucosal administration devices increases patient acceptance and sedation predictability. While recently there have been many positive developments in sedation technology, it is now thought that medications used in sedation and anesthesia may have adverse effects on the developing brain. The evidence for this is not definitive, but we suggest that practitioners recognize this developing area and counsel patients accordingly. Finally, there is a clear trend of increased use of ambulatory anesthesia services for pediatric dentistry. Today, parents and practitioners have become accustomed to children receiving general anesthesia in the outpatient setting. As a

  20. Rheumatoid arthritis - an update for general dental practitioners.

    Science.gov (United States)

    de Souza, S; Bansal, R K; Galloway, J

    2016-11-18

    Rheumatoid arthritis (RA) is a common chronic inflammatory autoimmune disorder which significantly impacts patients' lives and can lead to permanent disability. Inflammation in RA not only affects joints; but can affect organs including the heart and lungs. Early diagnosis, initiation of intensive drug therapy, and a multidisciplinary care approach have vastly improved the long-term prognosis for those living with the condition. However, RA patients often present with co-morbidities which add to the complexity of clinical management. Orofacial conditions associated with RA which dental professionals need to be aware of include periodontal disease, temporomandibular dysfunction and salivary gland dysfunction. In this article, we provide information on RA, oral health in RA and guidance on how best to manage patients with RA in general dental practice.