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Sample records for maxillofacial injuries occur

  1. Our Treatment Approaches in Severe Maxillofacial Injuries Occurring After Failed Suicide Attempts Using Long-Barreled Guns.

    Science.gov (United States)

    Kucuker, Ismail; Şimşek, Tekin; Keles, Musa Kemal; Yosma, Engin; Aksakal, Ibrahim Alper; Demir, Ahmet

    2016-03-01

    Maxillofacial traumas with long-barreled guns may sometimes cause catastrophic results by means of smashing in facial structures. In these patients, reconstruction strategies of both fragmented/lost soft and hard tissues still remain controversial. In their clinic, the authors treated 5 patients with severely injured face after failed suicide attempt between 2008 and 2013. In this study, the authors aimed to present their clinical experiences on these severely injured maxillofacial gunshot traumas and offer a treatment algorithm to gain a result as possible as satisfactory in terms of functionality and appearance.

  2. CT of maxillofacial injury

    International Nuclear Information System (INIS)

    DeLaPaz, R.; Brant-Zawadzki, M.; Rowe, L.D.

    1986-01-01

    Computed tomography has the ability to evaluate maxillofacial trauma quickly. The well-known contrast resolution capabilities of CT play a role in the usefulness of this modality. However, it is the image manipulation capability which is of singular advantage in these cases. The spatial resolution of computed tomography has matched that of conventional pluridirectional tomography in current generation equipment. Since a set of axial CT sections can be obtained with automatic table incrementation within 12 minutes, the information content per time of study ratio is improved over that of conventional tomography, despite the fact that image reformation requires extra time on the part of the radiologist. Radiation savings are significantly in favor of computed tomography as well. In the authors' experience, computed tomography is the primary diagnostic imaging modality used in the evaluation of complex facial trauma, after routine screening films are obtained

  3. MAXILLOFACIAL SOFT TISSUE INJURIES IN NAIROBI, KENYA

    African Journals Online (AJOL)

    2012-09-09

    Sep 9, 2012 ... Conclusion: The leading causes of MF-STIs apparently differ from those of skeletal fractures. INTRODUCTION. Maxillofacial (MF) soft tissue injuries (STIs) are often overlooked in clinical surveys compared to fractures, yet these injuries negatively impact both on function and esthetics. Previous surveys on ...

  4. Computed Tomography evaluation of maxillofacial injuries

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    V Natraj Prasad

    2017-01-01

    Full Text Available Background & Objectives: The maxillofacial region, a complex anatomical structure, can be evaluated by conventional (plain films, Tomography, Multidetector Computed Tomography, Three-Dimensional Computed Tomography, Orthopantomogram and Magnetic Resonance Imaging. The study was conducted with objective of describing various forms of maxillofacial injuries, imaging features of different types of maxillofacial fractures and the advantage of using Three- Dimensional Computed Tomography reconstructed image. Materials & Methods: A hospital based cross-sectional study was conducted among 50 patients during April 2014 to September 2016 using Toshiba Aquilion Prime 160 slice Multi Detector Computed Tomography scanner.Results: The maxillofacial fractures were significantly higher in male population (88% than female population (12 %. Road traffic accidents were the most common cause of injury others being physical assault and fall from height. It was most common in 31-40 years (26% and 21-30 (24% years age group. Maxillary sinus was the commonest fracture (36% followed by nasal bone and zygomatic bone (30%, mandible and orbital bones (28%. Soft tissue swelling was the commonest associated finding. Three dimensional images (3 D compared to the axial scans missed some fractures. However, the extension of the complex fracture lines and degree of displacement were more accurately assessed. Complex fractures found were Le fort (6% and naso-orbito-ethmoid (4% fractures.Conclusion: The proper evaluation of complex anatomy of the facial bones requires Multidetector Computed Tomography which offers excellent spatial resolution enabling multiplanar reformations and three dimensional reconstructions for enhanced diagnostic accuracy and surgical planning.

  5. Incidence and severity of maxillofacial injuries during the Second Lebanon War among Israeli soldiers and civilians.

    Science.gov (United States)

    Levin, Liran; Zadik, Yehuda; Peleg, Kobi; Bigman, Galya; Givon, Adi; Lin, Shaul

    2008-08-01

    To analyze the incidence and severity of maxillofacial injuries in the Second Lebanon War, that occurred during the summer of 2006, among Israeli soldiers and civilians. This is a retrospective cohort study of patients recorded in the Israel National Trauma Registry during the Second Lebanon War. Data refer to all general hospitals throughout the country. Data were analyzed according to the etiology of the injury, severity of trauma using the Injury Severity Score, trauma location, and duration of hospital stay. Cases with multiple injuries that included maxillofacial injuries were separated and further analyzed according to the above parameters. Patients with only dental injuries and superficial facial soft tissue lacerations were excluded because they were referred to the military dental clinics and not to general hospitals. Maxillofacial injuries were found in 36 (6.4%) of the 565 wounded. Patients with maxillofacial injuries ranged in age from 20 to 44 years (mean age, 25.5 +/- 5.7 years). Greater than 50% of the injuries required more than 3 hospitalization days. Mortality rate of the maxillofacial injured was 2.8%. Most of the maxillofacial injuries (33; 91.7%) were combined with other organ injuries; 9 (25%) patients also had dental injuries. In the Second Lebanon War, the incidence and severity of true maxillofacial injuries, without dental injuries alone, were relatively low compared with previous reports of other conflicts. However, because most injuries involved multiple organs, special attention is required when planning and providing emergency, as well as secondary and tertiary medical care to war wounded.

  6. Maxillofacial trauma: managing potentially dangerous and disfiguring complex injuries [digest].

    Science.gov (United States)

    Das, Devjani; Salazar, Lea; Zaurova, Milana

    2017-04-22

    Patients with maxillofacial trauma require a careful evaluation due to the anatomical proximity of the maxillofacial region to the head and neck. Facial injuries can range from soft-tissue lacerations and nondisplaced nasal fractures to severe, complex fractures, eye injuries, and possible brain injury. Though the Advanced Trauma Life Support (ATLS) guidelines provide a framework for the management of trauma patients, they do not provide a detailed reference for many subtle or complex facial injuries. This issue adds a more comprehensive and systematic approach to the secondary survey of the maxillofacial area and emergency department management of injuries to the face. In addition to an overall review of maxillofacial trauma pathophysiology, associated injuries, and physical examination, this review will also discuss relevant imaging, treatment, and disposition plans. [Points & Pearls is a digest of Emergency Medicine Practice].

  7. Maxillofacial and dental injuries sustained in hurling.

    LENUS (Irish Health Repository)

    Murphy, C

    2010-06-01

    The incidence of facial injuries in hurling has decreased since the introduction of helmets with facial protection. The aim of this study was to identify the incidence of facial and dental injuries sustained in hurling training or matches and compliance with wearing helmets, with or without modified or unmodified faceguards. This prospective study included all patients who attended the Mid Western Regional Hospital Limerick, with injuries sustained while playing hurling during 2007 and 2008 seasons. The study population included 70 patients. Forty two (60%) injuries occurred during practice and 28(40%) during matches. Fifty two players (75%) sustained facial injuries whilst no helmet was worn. Eighteen injuries (25%) were sustained by players wearing helmets. Th study demonstrates that 60% of injuries occur during training when players do not wear helmets. We support the recent introduction by the GAA making it compulsory to wear helmets with faceguard protection from January 1st 2010.

  8. Patterns, Severity, and Management of Maxillofacial Injuries in a ...

    African Journals Online (AJOL)

    exposure.[3]. The changing etiological factors and patterns of maxillofacial injuries reported .... Ivy and Curtis[13] system while maxillary fractures were classified .... diligence and compliance to keep a good oral hygiene and prevent infection.

  9. Gunshot (Pellets injury to the maxillofacial complex: a case report

    Directory of Open Access Journals (Sweden)

    Kiran D.N

    2014-06-01

    Full Text Available Gunshot injuries are rather serious but uncommon type of trauma in India. A 45-year-old male was presented with gunshot (pellets embedded in the maxillofacial area for 22 years. There is no consensus in the literature whether to attempt their removal or leave them in situ. Our patient had no long-term sequela like infection, fistula formation, carcinogenesis or metal poisoning to date except for chill feeling on cold days. Management of this patient presented a dilemma in treatment in view of the effects of foreign bodies in the maxillofacial area. Key words: Maxillofacial injuries; Wounds, gunshot; Firearms

  10. Motorcycle accident is the main cause of maxillofacial injuries in the Penang Mainland, Malaysia.

    Science.gov (United States)

    Hashim, Hasnah; Iqbal, Syed

    2011-02-01

    Maxillofacial injuries are among the commonest forms of body injuries. There are three divisions, namely, facial bone fractures, soft tissue injuries, and dentoalveolar injuries. Etiologies include motor vehicle accidents, assaults, falls, and sporting injuries. The aim of this study was to determine the profiles including the causes of maxillofacial injuries seen in an urban government hospital in the mainland of Penang State, Malaysia. This was a cross-sectional study that recruited cases reported within a period of 1 year. The source population was maxillofacial injury patients presenting to the Oral and Maxillofacial Surgery Department of an urban hospital in the Penang Mainland, North Malaysia between May 2007 and May 2008. Cases of patients involved in accidents that occurred outside the reference vicinity were excluded. A case report form was developed and completed by the attending clinicians. Data were analyzed using spss version 12.0. A total of 194 cases were studied, with the mean patient age being 27.8 (SD 15.20) years. The majority of patients were Malay men between 20 and 29 years of age. The main cause of injury was motorcycle accident (53.6%). The commonest injury (in isolation/combination with other injuries) involved the soft tissues (87.2%), dentoalveolar region (33.4%), and facial bones (23.9%). Laceration was the commonest soft tissue injury, and crown fracture was the most frequent dentoalveolar injury. The facial bone that was most highly involved in the injury was the zygoma. Subjects involved in motorcycle accidents had a significantly higher incidence of sustaining facial bone fractures. Motorcycle accidents were the commonest cause of maxillofacial injuries in the Penang Mainland, Malaysia. Most patients were young men. Hence, it is prudent to reinforce appropriate road safety and awareness interventions particularly focusing young male motorcyclists so as to reduce the risk of accidents. © 2011 John Wiley & Sons A/S.

  11. Submental Intubation in Patients with Complex Maxillofacial Injuries

    Science.gov (United States)

    Cheong, Yuseon; Kang, Seong Sik; Kim, Minsoo; Son, Hee Jeong; Park, Jaewoo; Kim, Jeong-Mo

    2016-01-01

    Airway management in patients with complex maxillofacial injuries is a challenge to anesthesiologists. Submental intubation is a useful technique that is less invasive than tracheostomy in securing the airways where orotracheal and nasotracheal intubation cannot be performed. This procedure avoids the use of tracheostomy and bypasses its associated morbidities. A flexible and kink-resistant reinforced endotracheal tube with detachable universal connector is commonly used for submental intubation. Herein, we report cases involving submental intubation using a reinforced endotracheal tube with a non-detachable universal connector in patients with complex maxillofacial injuries. PMID:27924286

  12. Prevalence and patterns of combat sport related maxillofacial injuries

    OpenAIRE

    Shirani, Gholamreza; Kalantar Motamedi, Mohammad Hosein; Ashuri, Alireza; Eshkevari, Pooyan Sadr

    2010-01-01

    Aim: This study was designed to assess the prevalence, distribution, and patterns of injury among athletes engaged in combat sports and compare the prevalence, pattern, and types of oral and maxillofacial trauma in these athletes. Materials and Methods: A total of 120 male athletes engaged in four combat sports (boxing, taekwondo, kickboxing, and Muay Thai) who had sustained bodily trauma were studied; 95 subjects with at least one traumatic injury to the face requiring treatment were referre...

  13. Prevalence and patterns of combat sport related maxillofacial injuries.

    Science.gov (United States)

    Shirani, Gholamreza; Kalantar Motamedi, Mohammad Hosein; Ashuri, Alireza; Eshkevari, Pooyan Sadr

    2010-10-01

    This study was designed to assess the prevalence, distribution, and patterns of injury among athletes engaged in combat sports and compare the prevalence, pattern, and types of oral and maxillofacial trauma in these athletes. A total of 120 male athletes engaged in four combat sports (boxing, taekwondo, kickboxing, and Muay Thai) who had sustained bodily trauma were studied; 95 subjects with at least one traumatic injury to the face requiring treatment were referred to us by the physician team. The type of injury (facial laceration, facial fractures, jaw dislocation, etc.), site of facial injury (jaw, nose, malar bone, teeth, etc.), dental injuries (tooth fracture, displacement, luxation, and avulsion), causative sport (boxing, taekwondo, kickboxing, and Muay Thai) as well as demographic data were recorded. Injuries were examined clinically and radiographically, and treated accordingly by a specialist. Treatment data and demographics were recorded for each subject. Recorded data were assessed, and χ(2), ANOVA, and Kruskal-Wallis tests were used to statistically analyze and compare the data. Of 120 subjects, 95 male subjects (79.2%), aged 18-25 years (avg. 20 years), had at least one traumatic injury to the face requiring medical treatment. These injuries included facial laceration, bone fractures (nose, mandible, and zygoma), dental injuries (displacement, luxation, fracture, and avulsion), and mandibular dislocation which were recorded in 83 (69.2%), 55 (45.1%), 53 (44.2%), and 8 (6.7%) cases respectively. Statistically significant differences were encountered among various injuries and the sports; kickboxing caused the most maxillofacial injuries and was identified as more injurious. Tooth fractures (59.7%) were the most common dental injuries, and the nose (84.7%) was the most frequently fractured facial bone. Lacerations were more common in Thai-boxers (93.3%). Injuries were significantly greater in professional rather than amateur athletes. In this study

  14. Prevalence and patterns of combat sport related maxillofacial injuries

    Directory of Open Access Journals (Sweden)

    Shirani Gholamreza

    2010-01-01

    Full Text Available Aim: This study was designed to assess the prevalence, distribution, and patterns of injury among athletes engaged in combat sports and compare the prevalence, pattern, and types of oral and maxillofacial trauma in these athletes. Materials and Methods: A total of 120 male athletes engaged in four combat sports (boxing, taekwondo, kickboxing, and Muay Thai who had sustained bodily trauma were studied; 95 subjects with at least one traumatic injury to the face requiring treatment were referred to us by the physician team. The type of injury (facial laceration, facial fractures, jaw dislocation, etc., site of facial injury (jaw, nose, malar bone, teeth, etc., dental injuries (tooth fracture, displacement, luxation, and avulsion, causative sport (boxing, taekwondo, kickboxing, and Muay Thai as well as demographic data were recorded. Injuries were examined clinically and radiographically, and treated accordingly by a specialist. Treatment data and demographics were recorded for each subject. Recorded data were assessed, and c2 , ANOVA, and Kruskal-Wallis tests were used to statistically analyze and compare the data. Results: Of 120 subjects, 95 male subjects (79.2%, aged 18-25 years (avg. 20 years, had at least one traumatic injury to the face requiring medical treatment. These injuries included facial laceration, bone fractures (nose, mandible, and zygoma, dental injuries (displacement, luxation, fracture, and avulsion, and mandibular dislocation which were recorded in 83 (69.2%, 55 (45.1%, 53 (44.2%, and 8 (6.7% cases respectively. Statistically significant differences were encountered among various injuries and the sports; kickboxing caused the most maxillofacial injuries and was identified as more injurious. Tooth fractures (59.7% were the most common dental injuries, and the nose (84.7% was the most frequently fractured facial bone. Lacerations were more common in Thai-boxers (93.3%. Injuries were significantly greater in professional rather

  15. Pattern of Assault-induced Oral and Maxillofacial Injuries in Ado ...

    African Journals Online (AJOL)

    The etiology of maxillofacial injuries varies from one country to another and even within the same country depending on the prevailing socioeconomic, cultural, and environmental factors.[1-4] Road traffic crashes (RTC), assaults, sports, falls occupational hazards are documented causes of oral and maxillofacial injuries.

  16. Risk factors for maxillofacial injuries in a Brazilian emergency hospital sample

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    José Luiz Rodrigues Leles

    2010-02-01

    Full Text Available BACKGROUND: Maxillofacial injuries occur in a significant number of trauma patients. Epidemiological assessments are essential to reaffirm patterns, identify new trends and develop clinical and research priorities for effective treatment and prevention of these injuries. OBJECTIVE: The aim of this study was to identify the epidemiological profile and risk factors associated with maxillofacial trauma treated at a referral emergency hospital for the Public Health System in the State Capital of Goiás, Brazil. MATERIAL AND METHODS: A cross-sectional study was designed including 530 patients with maxillofacial trauma, 76% male, with a mean age of 25.5±15.0 years. Data were collected between May 2003 and August 2004 over weekly shift-working periods. RESULTS: The main causes of trauma were traffic accidents (45.7% and physical assaults (24.3%, and differences in etiological factors were identified according to gender (p<0.001. The distribution of patients according to age and etiology showed significant differences for traffic accidents (p<0.01, physical assaults (p<0.001, falls (p<0.001 and sport injuries (p<0.01. In the multinomial logistic regression analysis (R² = 0.233; p<0.05, age was associated with injury in traffic accidents and falls (p<0.01, sports-related accidents were associated with males (p<0.05, and alcohol consumption with assaults and traffic accidents (p<0.001. Facial soft tissue lesions were found in 98% of patients and facial fractures in 51%. CONCLUSIONS: The significant association of maxillofacial trauma with young males and alcohol consumption reinforces the need for educational strategies and the development of policies for the prevention and reduction of associated damage in this specific risk group.

  17. Head and Maxillofacial Injuries in Child and Adolescent Victims of Automotive Accidents

    Directory of Open Access Journals (Sweden)

    Alessandro Leite Cavalcanti

    2014-01-01

    Full Text Available Background. Victims of motor vehicle accidents may suffer multiple lesions, including maxillofacial injuries. The aim of this study was to evaluate the prevalence and factors associated with head, facial, and maxillofacial injuries in child and adolescent victims of automobile accidents. A cross-sectional study was carried out with analysis of forensic medical reports from the Legal Medical Institute of Campina Grande, Brazil, between January 2008 and December 2011. Descriptive and inferential statistical analysis was conducted using the chi-square test (α = 0.05. From 1613 medical reports analyzed, the sample is composed 232 (14.4% reports referring to child and adolescent victims of automobile accidents aged 0–19 years of both sexes. Victims were mostly adolescents aged from 15 to 19 years (64.2%, males (73.7%, and motorcyclists (51.3%. More than half of the victims had single lesions (54.3% located in the head (20.7% and face (21.6%. Head injuries occurred more frequently in children aged 0–4 years (53.8%, PR = 5.065, 95% CI = 1.617–5.870 and pedestrians (30.4%, PR = 2.039, 95% CI = 1.024–4.061, while facial and maxillofacial injuries occurred in higher proportion among females (31.1%, PR = 0.489, 95% CI = 0.251–0.954. Our findings suggest that accidents involving motorcyclists are the most prevalent, affecting male adolescents aged from 15 to 19 years, resulting in a high frequency of injuries in the head and face regions.

  18. Characteristics of maxillofacial injuries resulting from road traffic accidents – a 5 year review of the case records from Department of Maxillofacial Surgery in Katowice, Poland

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    Drugacz Jan

    2006-08-01

    Full Text Available Abstract Background In spite of employing numerous devices improving the safety in motor vehicles, traffic accidents are still among the main reasons of maxillofacial injuries. The maxillofacial injuries remain the serious clinical problem because of the specificity of this anatomical region. The knowledge of etiologic factors and mechanisms of injuries can be helpful in a satisfactory trauma prevention. The aim of this study was to find out the incidence and the pattern of maxillofacial injuries resulting from traffic accidents in the patients treated in the Department of Maxillofacial Surgery (Silesian Medical Academy in Katowice, Poland from January 2001 to December 2005. Methods The material consisted of 1024 case records of patients with maxillofacial injuries treated in the Maxillofacial Surgery Department of Silesian Medical Academy. The detailed analysis was carried out on the case records of 198 patients in the age of 3 to 68 with maxillofacial injuries resulting from traffic accidents. On the basis of data from a history, examination on admission, consultations and radiological examinations, patients' age and gender, we obtained the information on a pattern of injury and detailed description of an accident (the date and the time of an accident, the role of the patient in an accident. Results The traffic accidents were the cause of 19,93% maxillofacial injuries in the analyzed period of time. Most of the patients had injuries to the soft tissues of the face (22,21%, followed by tooth and alveolar process injuries (20,71% and mandibular fractures (18,69%. All the types of injuries were more common in men than in women. The majority of the patients were car drivers followed by car passengers, pedestrians, cyclists and motor cyclists. The peak age of the patients was between 18 to 25 years. The prevalent number of accidents resulting in injuries to this region took place in spring, especially between noon and 4 PM. Conclusion Our results

  19. Rare etiological factor of maxillofacial injury: Case series seen and managed in a tertiary referral centre

    Directory of Open Access Journals (Sweden)

    Ramat Oyebunmi Braimah

    2016-01-01

    Full Text Available Entanglement injury from local milling/grinding machine with a conveyor belt is a rare etiology of maxillofacial injuries. While there is abundant literature on industrial cause of trauma, entanglement injury as a mechanism has not been reported in the literature. We present two cases of maxillofacial injury secondary to entanglement of the loose apparel into the conveyor belt of the local grinding machine. The community should be aware of this rare cause of trauma, and adequate protection of children using these facilities should be enforced. One of such measure is to provide physical barriers to guard against these machines.

  20. Pattern, severity, and management of cranio-maxillofacial soft-tissue injuries in Port Harcourt, Nigeria

    Directory of Open Access Journals (Sweden)

    Akinbami Babatunde Olayemi

    2013-01-01

    Full Text Available Background: The pattern of craniofacial soft-tissue injuries occurring either in isolation or in association with fractures vary in different societies and is multiply influenced. The effects are enormous because of the prominence of the face; therefore, the purpose of this study was to document any changing pattern, severity and management of these craniofacial injuries in our center. Patients and Method: Cranio-maxillofacial region was classified into upper, middle and lower face. The cause, type, and site of the injuries were documented. Gunshot injuries were further categorized as penetrating, perforating or avulsions. Further, classification of injuries into mild, moderate, and severe was carried out based on multiple factors. Result: A total of 126 patients with soft-tissue injuries presented to our hospital out of which 85 (67.5% were males and 41 (32.5 were females. The age range of the patients was between 10 months and 90 years with a mean ± SD of 26.4 ± 15.5 years. Road traffic accident was the most common etiology of which vehicular accidents constituted 50 (54.9% and the motorcycle was 2 (2.2%. Assault contributed 16 (17.6% while cases due to gun shots were 13 (14.3%. A total of 19 (15.1% patients had associated head injuries, 11 (8.7% patients had craniofacial fractures involving any of the bones while 3 (2.4% patients had limb fractures and 2 (1.6% patients had rib fractures. There were 51 (41.8% cases classified as mild injuries, 37 (30.3% cases as moderate injuries and 24 (19.7% cases as severe injuries. Total of 126 cases managed, 121 (96.0% received primary closure of the wounds while 5 (4.0% received delayed closure under general anesthesia.

  1. Maxillofacial injuries due to work-related accidents in the North West of Italy.

    Science.gov (United States)

    Roccia, Fabio; Boffano, Paolo; Bianchi, Francesca Antonella; Gerbino, Giovanni

    2013-09-01

    The aim of this study was to assess the incidence and patterns of work-related maxillofacial injuries, identifying worker categories with a high risk of injury. From a systematic computer-assisted database that has continuously recorded patients hospitalized with maxillofacial fractures, only patients with work-related injuries were considered. Occupation, mechanism of injury, and demographic and clinical data were analyzed. Work-related facial injuries represented the fifth most common cause of injury, with a percentage of 6.3 %. Maxillofacial fractures were most often seen in construction workers (37.9 %). The middle third was involved in 67 % of the cases; the mandible was the most frequently injured site. Work-related maxillofacial trauma is rare, but it is often complex and challenging as Facial Injury Severity Scale values show. In agreement with the few published reports, construction workers, together with farm and forestry workers, are at the highest risk of injuries, mainly because of struck by a thrown, projected, or falling object.

  2. Tibial bone fractures occurring after medioproximal tibial bone grafts for oral and maxillofacial reconstruction.

    Science.gov (United States)

    Kim, Il-Kyu; Cho, Hyun-Young; Pae, Sang-Pill; Jung, Bum-Sang; Cho, Hyun-Woo; Seo, Ji-Hoon

    2013-12-01

    Oral and maxillofacial defects often require bone grafts to restore missing tissues. Well-recognized donor sites include the anterior and posterior iliac crest, rib, and intercalvarial diploic bone. The proximal tibia has also been explored as an alternative donor site. The use of the tibia for bone graft has many benefits, such as procedural ease, adequate volume of cancellous and cortical bone, and minimal complications. Although patients rarely complain of pain, swelling, discomfort, or dysfunction, such as gait disturbance, both patients and surgeons should pay close attention to such after effects due to the possibility of tibial fracture. The purpose of this study is to analyze tibial fractures that occurring after osteotomy for a medioproximal tibial graft. An analysis was intended for patients who underwent medioproximal tibial graft between March 2004 and December 2011 in Inha University Hospital. A total of 105 subjects, 30 females and 75 males, ranged in age from 17 to 78 years. We investigated the age, weight, circumstance, and graft timing in relation to tibial fracture. Tibial fractures occurred in four of 105 patients. There were no significant differences in graft region, shape, or scale between the fractured and non-fractured patients. Patients who undergo tibial grafts must be careful of excessive external force after the operation.

  3. A ten-year analysis of the traumatic maxillofacial and brain injury patient in Amsterdam: Incidence and aetiology

    NARCIS (Netherlands)

    Salentijn, E.G.; Peerdeman, S.M.; Boffano, P.; van den Bergh, B.; Forouzanfar, T.

    2014-01-01

    In the literature it is questioned if the presence of maxillofacial trauma is associated with the presence of brain injury. The aim of this study is to present a 10-year retrospective study of the incidence and aetiology of maxillofacial trauma associated with brain injury that required both oral

  4. A ten-year analysis of the traumatic maxillofacial and brain injury patient in Amsterdam: incidence and aetiology

    NARCIS (Netherlands)

    Salentijn, E.G.; Peerdeman, S.M.; Boffano, P.; van den Bergh, B.; Forouzanfar, T.

    2014-01-01

    In the literature it is questioned if the presence of maxillofacial trauma is associated with the presence of brain injury. The aim of this study is to present a 10-year retrospective study of the incidence and aetiology of maxillofacial trauma associated with brain injury that required both oral

  5. A ten year analysis of the traumatic maxillofacial and brain injury patient in Amsterdam: complications and treatment

    NARCIS (Netherlands)

    Salentijn, E.G.; Collin, J.D.; Boffano, P.; Forouzanfar, T.

    2014-01-01

    Maxillofacial trauma is often associated with injuries to the cranium, especially in high-energy trauma. The management of such cases can be challenging and requires close cooperation between oral and maxillofacial surgery and neurosurgical teams. There are few reports in the current literature

  6. A retrospective study of oral and maxillofacial injuries in Seremban Hospital, Malaysia.

    Science.gov (United States)

    Ramli, Roszalina; Rahman, Normastura Abdul; Rahman, Roslan Abdul; Hussaini, Haizal Mohd; Hamid, Abdul Latif Abdul

    2011-04-01

    Aetiology of oral and maxillofacial injuries in this country includes motorvehicle accident (MVA), fall, industrial accidents and others. Among these causes, MVA accident is the predominant cause of injury in Malaysia. A retrospective record review was carried out using hospital records of all patients who sustained oral and maxillofacial injury at the Department of Oral Surgery, Seremban Hospital, Negeri Sembilan, Malaysia between 1998 and 2002. Information related to demographics, aetiology of trauma, vehicles involved in collision, location of injuries and treatment modalities were reviewed. Two thousand nine hundred and eighty-six patients sustained oral and maxillofacial injuries. Of these patients, 79.2% were men and the remaining were women. Among all the races, Malays had the highest involvement (50.6%) followed by Indians (24.5%), Chinese (19.6%) and others (5.3%). There were statistically significant results on the association of aetiology and the ethnic groups, in the age group of 30 years or less and male gender (P < 0.001). The most common injury was the soft-tissue injury followed by dental and dentoalveolar injuries and bony fracture. Among all facial fractures, 66.3% were managed conservatively, 13% were treated surgically and 19.7% did not have any intervention. In relation to dental and dentoalveolar injuries, 64.8% had treatment in the form of splinting, restorations or dental extraction. The rest of the patients (35.2%) were referred to their dentists or did not have any active treatment at Seremban Hospital. Most of the dental and facial injuries in Seremban Hospital were caused by MVA and were predominantly managed using conservative methods. © 2011 John Wiley & Sons A/S.

  7. [The expert characteristic of the forensic medical documentation for the purpose of investigations of the injuries to the maxillofacial region].

    Science.gov (United States)

    Popov, V L; Yagmurov, M O; Troshin, E L

    2018-01-01

    The injuries to the maxillofacial region (MFR) are among the most frequently occurring problems encountered if the forensic medical practice. The objective of the present study was the analysis of the quality of the medical record documentation of the victims of the injuries to the maxillofacial region for obtaining the information necessary for forensic medical experts to make the well-founded conclusions. We undertook the in-depth analysis of random samples from the materials stored in the archive of living subjects at the Saint-Petersburg Bureau of forensic medical expertise for the period from 2010 to 2014. The results of a total of 438 forensic medical examinations were available for the analysis. The study has demonstrated the generally low forensic medical value of the expert conclusions that frequently fail to conform to the requirements of the departmental instructions on the description of MFR injuries. In all the cases, neurologists and radiologists were counselled. The results of analysis of the drawbacks of forensic medical examinations give evidence that they originate first and foremost from subjective circumstances which opens up the promising prospects for the improvement of expertise quality based on the enhancement of the professional responsibility of the forensic medical experts.

  8. Etiology and pattern of maxillofacial injuries in the armed forces of pakistan

    International Nuclear Information System (INIS)

    Khan, S.U.; Khan, M.; Khan, A.A.; Maqsood, A.; Ibrahim, W.; Wasim, A.

    2007-01-01

    To determine the etiology and pattern of maxillofacial injuries in the Armed Forces of Pakistan in terms of anatomical distribution of injuries. Three hundred consecutive patients of Armed Forces of Pakistan with maxillofacial injuries reporting to AFID and admitted to the hospital or treated as out-patients in the oral surgery clinic, were included in this study. Isolated nasal bone and frontal sinus fractures were excluded from the study. Anatomical distribution, frequency and etiology of fractures, rank at job and occupational as well as personal hobbies were recorded. Descriptive analyses were used to determine mean, standard deviation, percentage and range values. The most frequent bone fractured was the mandible, which accounted for 159 cases (53%). The zygomatic complex was fractured in 51 cases (17%), the maxilla in 12 cases (4 %), and the alveolar process in 21 cases (7%). The most common cause was road traffic accident (168 cases; 56%), followed by accidental fall (69 cases; 23%), gunshot injuries (27 cases; 9%), sports related injuries (15 cases; 5%), and injury associated with a fight (12 cases; 4%); there were only 9 cases of animals related injuries (3%). In this series, mandible was the most commonly fractured facial bone, while road traffic accident was the most common etiological factor. Results could be influenced by the personal and working environment. (author)

  9. Prevalence of Oral and Maxillofacial Injuries among Patients ...

    African Journals Online (AJOL)

    Diagnoses of the different types of hard and soft tissue injuries were done by ... a result of wounding or external violence. ... traffic accident (RTA), falls, assaults, sports, domestic and ..... With regard to gender, male to female ratio distribution.

  10. Frequency of Maxillofacial Injuries Among Athletes-Members of Various Sports Federations in Iranform 1998-2001

    Directory of Open Access Journals (Sweden)

    H Mahmoud Hasehmi

    2003-02-01

    Full Text Available Nowadays, sport injuries constitute a major part of social accidents. The aim of the presentstudy, was to investigate the frequency of maxillofacial injuries among athletes-members of differentsports federations in Iran from 1998-2001. For this reason files which was related to sport injuries of men and women athletes-members of sports federations were studied in Medical Federation of the Islamic Republic of Iran Sports Organization. The information were received through 26 medical organizations,located in different states of the country. The results showed that maxillofacial injuries constitute the major part of the sports injuries. In male athletes, football was the most important cause for maxillofacial injuries. However, mountain climbing and skiing play the least role in this field. Among female athletes,karate was the cause of the highest rate of maxillofacial sport injuries. Diving, mountain climbing and skiing cause the least number of maxillofacial accidents. Nasal fracture was the most common sport injury among Iraninan male and female athletes.

  11. maxillofacial surgery

    African Journals Online (AJOL)

    The history of maxillofacial and oral injuries, including mandibular fractures, from 1650 BC to the present, is the topic of two publications.1,2 To summarise: the Greek. 'Father of Medicine' Hippocrates was the first to describe fracture treatment – he recommended bandages and single jaw fixation. Celsus, a Roman (30 BC ...

  12. Frequency of Maxillofacial Injuries Among Athletes-Members of Various Sports Federations in Iranform 1998-2001

    OpenAIRE

    H Mahmoud Hasehmi

    2003-01-01

    Nowadays, sport injuries constitute a major part of social accidents. The aim of the presentstudy, was to investigate the frequency of maxillofacial injuries among athletes-members of differentsports federations in Iran from 1998-2001. For this reason files which was related to sport injuries of men and women athletes-members of sports federations were studied in Medical Federation of the Islamic Republic of Iran Sports Organization. The information were received through 26 medical organizati...

  13. Clinical and statistical analysis of traumatic injuries of the maxillofacial region and its complications on materials of the Department of Maxillofacial Surgery from 2008 till 2012

    Directory of Open Access Journals (Sweden)

    Lepilin A.V. Bakhteeva G.R.

    2013-09-01

    The ratio of male and female patients during the study period did not change (men 89%, women — 11 %. Single fractures that do not require surgical treatment were dominated. Operating activities during the study period of fracture increased. For 5 years, the number of complications of traumatic injuries remained the same. Conclusion. Statistical analysis of traumatic injuries of the maxillofacial region shows that the average age of the patients decreased by almost 5 years, reduced average hospital stay. Most of the patients were admitted to the profile department in the early period (up to 3 days after preparation, but 21.6% of the patients were received only with the development of complications. The article concludes that there is a need to find new methods of diagnosis, treatment and prevention of complications of traumatic injuries.

  14. Evaluation of Depression Associated With Post-Traumatic Stress Disorder After Maxillofacial Injuries-A Prospective Study.

    Science.gov (United States)

    Ranganathan, Vatsala; Panneerselvam, Elavenil; Chellappazham, Saravanan; Balasubramaniam, Sasikala; Raja V B, Krishnakumar

    2018-06-01

    Maxillofacial injuries can result in psychological derangement, leading to post-traumatic stress disorder (PTSD), which is characterized by continual re-experiencing of any traumatic event in addition to numerous systemic complications. The objective of this study was to assess the incidence and severity of "PTSD-related depression" in patients with maxillofacial injuries and to identify the risk factors involved. This prospective study involved 88 patients with maxillofacial trauma who had only cosmetic deficits (group A), only functional deficits (group B), or cosmetic and functional deficits (group C). The psychological status of all patients was assessed before and after surgery using Zung's Self-Rating Depression Scale. Remission time also was analyzed. Data were analyzed with SPSS 22.0 using parametric methods. Comparison of mean values among groups was performed using 1-way analysis of variance followed by Tukey honest significance difference post hoc tests for multiple pairwise comparisons. To compare proportions, the χ 2 test was applied. The number of patients in groups A, B, and C was 11, 34 and 43, respectively. In the immediate post-trauma stage, all patients in group A showed severe depression; the percentages of patients with severe depression in groups B and C were 8.8 and 81.4%, respectively, which was statistically relevant. Depression scores of patients of all groups decreased gradually in the postsurgical phase. Patients with cosmetic defects consistently recorded higher depression scores at all intervals. The time taken for recovery from depression (remission time) was shorter for patients with only functional deficits (group B). Patients with maxillofacial injuries are prone to PTSD-related depression from functional and cosmetic deficits. The objectives of trauma management must be aimed at restoring pre-trauma form and function of the maxillofacial skeleton and the patient's psychological status. Copyright © 2018 American Association of

  15. Nerve injuries do occur in elbow arthroscopy

    NARCIS (Netherlands)

    Hilgersom, Nick F. J.; van Deurzen, Derek F. P.; Gerritsma, Carina L. E.; van der Heide, Huub J. L.; Malessy, Martijn J. A.; Eygendaal, Denise; van den Bekerom, Michel P. J.

    2018-01-01

    The purpose is to create more awareness as well as emphasize the risk of permanent nerve injury as a complication of elbow arthroscopy. Patients who underwent elbow arthroscopy complicated by permanent nerve injury were retrospectively collected. Patients were collected using two strategies: (1) by

  16. Nerve injuries do occur in elbow arthroscopy.

    Science.gov (United States)

    Hilgersom, Nick F J; van Deurzen, Derek F P; Gerritsma, Carina L E; van der Heide, Huub J L; Malessy, Martijn J A; Eygendaal, Denise; van den Bekerom, Michel P J

    2018-01-01

    The purpose is to create more awareness as well as emphasize the risk of permanent nerve injury as a complication of elbow arthroscopy. Patients who underwent elbow arthroscopy complicated by permanent nerve injury were retrospectively collected. Patients were collected using two strategies: (1) by word-of-mouth throughout the Dutch Society of Shoulder and Elbow Surgery, and the Leiden University Nerve Centre, and (2) approaching two medical liability insurance companies. Medical records were reviewed to determine patient characteristics, disease history and postoperative course. Surgical records were reviewed to determine surgical details. A total of eight patients were collected, four men and four women, ageing 21-54 years. In five out of eight patients (62.5%), the ulnar nerve was affected; in the remaining three patients (37.5%), the radial nerve was involved. Possible causes for nerve injury varied among patients, such as portal placement and the use of motorized instruments. A case series on permanent nerve injury as a complication of elbow arthroscopy is presented. Reporting on this sequel in the literature is little, however, its risk is not to be underestimated. This study emphasizes that permanent nerve injury is a complication of elbow arthroscopy, concurrently increasing awareness and thereby possibly aiding to prevention. IV, case series.

  17. Maxillofacial trauma due to work-related accidents.

    Science.gov (United States)

    Hächl, O; Tuli, T; Schwabegger, A; Gassner, R

    2002-02-01

    Even though numerous reports on maxillofacial trauma exist, only a few give detailed information about work-related maxillofacial injuries. The purpose of this study was to reveal the significance of maxillofacial injuries related to accidents occurring at work by evaluating a large number of patients with maxillofacial injuries over a 9-year period. Out of the 8704 trauma patients treated between 1991 and 1999 in the Department of Oral and Maxillofacial Surgery at the University of Innsbruck, Austria, 463 (5.4%) were injured at work. All charts were reviewed and analyzed according to age, gender, cause of accident, occupation, type of injury, location and frequency of fractures. The highest incidence of maxillofacial injury was found among construction workers (a total of 124 patients, 26.8%), followed by craftsmen (102 patients, 22.0%) and office employees (69 patients, 14.9%). The sex distribution showed an overall male-to-female ratio of 11.8:1 and those in the age group most affected were between 20 and 29 years of age. The most frequent cause of injury was a blow in 48.4%, followed by falls and falls over obstacles, accounting for 27.9% and 7.1%, respectively. Of all trauma, 45.4% (210 persons) sustained 423 maxillofacial fractures, 31.7% (147 patients) suffered 232 dento-alveolar injuries, and 21.2% (98 people) showed 430 soft-tissue injuries. One-fifth (20.7%) of all patients displayed concomitant injuries with cerebral and cranial trauma being the most common. The probability of sustaining maxillofacial trauma at work is correlated to the nature of the occupation. Individuals (mostly men) using tools or machines at work are exposed to a much higher risk of work-related maxillofacial trauma.

  18. Maxillofacial imaging

    Energy Technology Data Exchange (ETDEWEB)

    Larheim, T.A. [Oslo Univ. (Norway). Dept. of Maxillofacial Radiology; Westesson, P.L. [Univ. of Rochester School of Medicine and Dentistry, NY (United States). Div. of Diagnostic and Interventional Radiology

    2006-07-01

    Maxillofacial imaging has evolved dramatically over the past two decades with development of new cross-sectional imaging techniques. Traditional maxillofacial imaging was based on plain films and dental imaging. However, today's advanced imaging techniques with CT and MRI have only been partially implemented for maxillofacial questions. This book bridges the gap between traditional maxillofacial imaging and advanced medical imaging. We have applied CT and MRI to a variety of maxillofacial cases and these are illustrated with high-quality images and multiple planes. A comprehensive chapter on imaging anatomy is also included. This book is useful for oral and maxillofacial radiologists, oral and maxillofacial surgeons, dentists, radiologists, plastic surgeons, head and neck surgeons, and others that work with severe maxillofacial disorders. (orig.)

  19. Report of the laboratory building for late occurring injury

    International Nuclear Information System (INIS)

    1978-01-01

    In order to estimate the danger of low level radiation to human beings, the studies of the late-occurring injuries and internal exposure due to radionuclide deposition are necessary. In the National Institute of Radiological Sciences, research on the estimation of the danger of late-occurring injuries due to radiation is proceeding. In this connection, a late-occurring injury laboratory building has been completed recently. Basic ideas behind it are as follows. To carry out the above mentioned studies effectively and efficiently, many experimental animals of high quality must be kept under best possible environment. For the observation in a series of experiments, irradiation room and laboratory rooms are essential. The building comprises the following: the first floor for animal receiving, the second floor for laboratory rooms, the third floor for RI facility and X-ray irradiated animal keeping, the fourth floor for SPF animal keeping, and attic floor for water supply, etc. (J.P.N.)

  20. Machete‑cut injuries are occurring in the maxillofacial region in Zaria ...

    African Journals Online (AJOL)

    2014-10-18

    Oct 18, 2014 ... postoperative recovery in our facility while one absconded after wound debridement and repair was achieved. ... other members of the public. ... and vessels, and in some cases fractures of the facial .... Lower third of the face.

  1. INCIDENCE OF MAXILLOFACIAL TRAUMA IN SONEPAT (HARYANA, INDIA

    Directory of Open Access Journals (Sweden)

    Malik SUNITA

    2013-03-01

    Full Text Available Background: Maxillofacial injuries represent a therapeutic challenge to oral and maxillofacial surgeons working in emerging countries. This study was carried out to determine the incidence of maxillofacial trauma, clinical management and associated complications. This study highlights the need of oral and maxillofacial surgery along with other disciplines to deliver the emergency services and management to the maxillofacial trauma patients. Patients and Methods: A prospective Medical institute study of maxillofacial injured patients was carried out between September 20122 and December 2012, at the recently founded B.P.S Government Medical College for women, Khanpur kalan, Sonepat, Data regarding incidence, age and sex distribution, causes, types and site of injury, treatment modalities and trauma associated complications were collected and analysed. Results: A total of 462 patients were studied. Males outnumbered females by a ratio of 2.9:1. age range was 9 months to 75 years with the peak incidence occurring in the age group 17-34 years .Most injuries were caused by road traffic accidents (75.8%, followed by assault and falls in 10.6% and 8% respectively. Soft tissue injuries and mandibular fractures were the most common type of injuries. Head/neck (53.1% and limb injuries (28.1% were the most prevalent associated injuries. Surgical debridement and soft tissue suturing (95.1% were the most common surgical procedures. Closed reduction of maxillofacial fractures was employed in 56% of patients, Open reduction and internal fixation was performed in 35% of cases and 9% were managed conservatively. Complications occurred in 3.4% of patients, mainly due to infection and malocclusion. The mean duration of hospital stay was 10.12 ± 6.24 days. Conclusion: This study highlights the importance of Dental surgery department alongwith other disciplinaes in the management of maxillofacial injuries. Moreover there is a need to reinforce legislation aimed to

  2. Lesiones penetrantes maxilofaciales: Presentación de 4 casos Penetrating maxillofacial injuries: Report of 4 cases

    Directory of Open Access Journals (Sweden)

    José Manuel Díaz Fernández

    2006-09-01

    Full Text Available Una historia y examen físico detallado deben ser imperativos en todos los pacientes con sospechas de lesiones penetrantes de la región maxilofacial por parte del cirujano maxilofacial, con participación activa y frecuente de oftalmólogos, otorrinolaringólogos y neurocirujanos, incluso ante lesiones aparentemente triviales. La exploración por radiografías simples, ultrasonidos y especialmente la tomografía axial computadorizada de reconstrucción tridimensional, constituye la mejor vía para detectar lesiones oculares y/ u orbitarias, fracturas del complejo craneofacial, precisar localización, naturaleza y relación del objeto hiriente con órganos y estructuras anatómicas importantes. Se presentan 4 pacientes con este tipo de lesiones proporcionadas por 3 tipos de objetos de naturaleza y características diferentes. Se enfatiza en los aspectos terapéuticos y se ilustra el trabajo con imágenes por rayos X simples y TAC. Se emiten consideraciones a tener presentes en este tipo de lesiones resaltando aquellas con extensión intracraneal.A medical history and a detailed physical examination should be imperative in all the patients with suspicion of penetrating injuries of the maxillofacial region, on the part of the maxillofacial surgeon with an active and frequent participation of ophthalmologists, otorhinolaryngologists and neurosurgeons, even in the case of apparently trivial injuries. The exploration by simple X rays, ultrasounds and, specially, computerized axial tomography of tridimensional reconstruction is the best way to detect ocular and/or orbital injuries, fractures of the craniofacial complex , and to determine the localization, nature and relation of the wounding object to organs and important anatomical structures. 4 patients with this type of injuries produced by three types of objects of different nature and characteristics are presented. Emphasis is made on the therapeutic aspects and the paper is illustrated with

  3. [Microvascular injury effects and possibility of early anastomosis in the maxillofacial region following high velocity missile wound: an experimental study in dogs].

    Science.gov (United States)

    Yan, Y

    1990-02-01

    In order to provide the basis of microvascular anastomosis for reconstruction of maxillofacial defects from firearm injury by using vascularized free tissue transplantation, we studied the mechanism and pathology of microvascular injuries and the possibility of their early anastomosis. The dogs' face were wounded by 0.7 g or 1.03 g steel spheres whose muzzle velocity were 1300 m/s or 1500 m/s. The injury effects of microvascular angiograms were recorded through high speed X-ray camera at the impacting moment the specimens of small vessel were collected for light and electron microscopy at different times after wound. Some dogs were used for performing microvascular anastomosis in the wound region at different times after wound. We found that there were temporary cavity effects in maxillofacial firearm wounds, in and around which small vessel blunt injuries were found, which spread 3 cm from the wound edge. Microvascular anastomosis 3 days after the wound could get higher shortterm patency rate. These results support the conclusion that if we use microsurgical methods to repair defects in maxillofacial firearm wound region, the pedicles of the flap should be laid beyond 3 cm from the wound edge, and the reconstructive operation should be done 3 days after the wound.

  4. Maxillofacial fractures and craniocerebral injuries - stress propagation from face to neurocranium in a finite element analysis.

    Science.gov (United States)

    Huempfner-Hierl, Heike; Schaller, Andreas; Hierl, Thomas

    2015-04-21

    Severe facial trauma is often associated with intracerebral injuries. So it seemed to be of interest to study stress propagation from face to neurocranium after a fistlike impact on the facial skull in a finite element analysis. A finite element model of the human skull without mandible consisting of nearly 740,000 tetrahedrons was built. Fistlike impacts on the infraorbital rim, the nasoorbitoethmoid region, and the supraorbital arch were simulated and stress propagations were depicted in a time-dependent display. Finite element simulation revealed von Mises stresses beyond the yield criterion of facial bone at the site of impacts and propagation of stresses in considerable amount towards skull base in the scenario of the fistlike impact on the infraorbital rim and on the nasoorbitoethmoid region. When impact was given on the supraorbital arch stresses seemed to be absorbed. As patients presenting with facial fractures have a risk for craniocerebral injuries attention should be paid to this and the indication for a CT-scan should be put widely. Efforts have to be made to generate more precise finite element models for a better comprehension of craniofacial and brain injury.

  5. Interpersonal violence, circumstances of aggressions and patterns of maxillofacial injuries in the metropolitan area of Campina Grande, State of Paraíba, Brazil (2008-2011).

    Science.gov (United States)

    Bernardino, Ítalo Macedo; Barbosa, Kevan Guilherme Nóbrega; Nóbrega, Lorena Marques; Cavalcante, Gigliana Maria Sobral; Ferreira, Efigenia Ferreira E; d'Ávila, Sérgio

    2017-09-01

    The aim of this study was to determine the circumstances of aggressions and patterns of maxillofacial injuries among victims of interpersonal violence. This was a cross-sectional and exploratory study conducted from the analysis of 7,132 medical-legal and social records of interpersonal violence victims seen in a Forensic Medicine and Dentistry Center. Descriptive and multivariate statistics were performed using Multiple Correspondence Analysis. Three groups with different victimization profiles were identified. The first group was mainly composed of men of different age groups, victims of community violence that resulted in facial bones or dentoalveolar fracture. The second group was mainly composed of adolescents (10-19 years) of both sexes, victims of interpersonal violence and without specific pattern of injuries. The third group was composed of adult women (≥ 20 years) victims of domestic violence that resulted in injuries of soft tissues of face or other body regions. The results suggest that sociodemographic and circumstantial characteristics are important factors in victimization by maxillofacial injuries and interpersonal violence.

  6. Contemporary management of maxillofacial ballistic trauma.

    Science.gov (United States)

    Breeze, J; Tong, D; Gibbons, A

    2017-09-01

    Ballistic maxillofacial trauma in the UK is fortunately relatively rare, and generally involves low velocity handguns and shotguns. Civilian terrorist events have, however, shown that all maxillofacial surgeons need to understand how to treat injuries from improvised explosive devices. Maxillofacial surgeons in the UK have also been responsible for the management of soldiers evacuated from Iraq and Afghanistan, and in this review we describe the newer types of treatment that have evolved from these conflicts, particularly that of damage-control maxillofacial surgery. Crown Copyright © 2017. Published by Elsevier Ltd. All rights reserved.

  7. Midline submental orotracheal intubation in maxillofacial injuries: A substitute to tracheostomy where postoperative mechanical ventilation is not required

    Directory of Open Access Journals (Sweden)

    Malti Agrawal

    2010-01-01

    Conclusion: There were no significant operative or postoperative complications. Postoperative submental scarring was acceptable [6] . We conclude that midline submental intubation is a simple and useful technique with low morbidity. It can be chosen in selected cases of maxillofacial trauma and is an excellent substitute to tracheostomy where postoperative mechanical ventilation is not required.

  8. Naturally Occurring Nrf2 Activators: Potential in Treatment of Liver Injury

    Directory of Open Access Journals (Sweden)

    Ravirajsinh N. Jadeja

    2016-01-01

    Full Text Available Oxidative stress plays a major role in acute and chronic liver injury. In hepatocytes, oxidative stress frequently triggers antioxidant response by activating nuclear erythroid 2-related factor 2 (Nrf2, a transcription factor, which upregulates various cytoprotective genes. Thus, Nrf2 is considered a potential therapeutic target to halt liver injury. Several studies indicate that activation of Nrf2 signaling pathway ameliorates liver injury. The hepatoprotective potential of naturally occurring compounds has been investigated in various models of liver injuries. In this review, we comprehensively appraise various phytochemicals that have been assessed for their potential to halt acute and chronic liver injury by enhancing the activation of Nrf2 and have the potential for use in humans.

  9. Maxillofacial prostheses challenges in resource constrained regions.

    Science.gov (United States)

    Tetteh, Sophia; Bibb, Richard J; Martin, Simon J

    2017-10-24

    This study reviewed the current state of maxillofacial rehabilitation in resource-limited nations. A rigorous literature review was undertaken using several technical and clinical databases using a variety of key words pertinent to maxillofacial prosthetic rehabilitation and resource-limited areas. In addition, interviews were conducted with researchers, clinicians and prosthetists that had direct experience of volunteering or working in resource-limited countries. Results from the review and interviews suggest rehabilitating patients in resource-limited countries remains challenging and efforts to improve the situation requires a multifactorial approach. In conclusion, public health awareness programmes to reduce the causation of injuries and bespoke maxillofacial prosthetics training programmes to suit these countries, as opposed to attempting to replicate Western training programmes. It is also possible that usage of locally sourced and cheaper materials and the use of low-cost technologies could greatly improve maxillofacial rehabilitation efforts in these localities. Implications for Rehabilitation More information and support needs to be provided to maxillofacial defect/injuries patients and to their families or guardians in a culturally sensitive manner by governments. The health needs, economic and psychological needs of the patients need to be taken into account during the rehabilitation process by clinicians and healthcare organizations. The possibility of developing training programs to suit these resource limited countries and not necessarily follow conventional fabrication methods must be looked into further by educational entities.

  10. Radiologic assessment of maxillofacial, mandibular, and skull base trauma

    International Nuclear Information System (INIS)

    Schuknecht, Bernhard; Graetz, Klaus

    2005-01-01

    Cranio-maxillofacial injuries affect a significant proportion of trauma patients either in isolation or concurring with other serious injuries. Contrary to maxillofacial injuries that result from a direct impact, central skull base and lateral skull base (petrous bone) fractures usually are caused by a lateral or sagittal directed force to the skull and therefore are indirect fractures. The traditional strong role of conventional images in patients with isolated trauma to the viscerocranium is decreasing. Spiral multislice CT is progressively replacing the panoramic radiograph, Waters view, and axial films for maxillofacial trauma, and is increasingly being performed in addition to conventional films to detail and classify trauma to the mandible as well. Imaging thus contributes to accurately categorizing mandibular fractures based on location, into alveolar, mandibular proper, and condylar fractures - the last are subdivided into intracapsular and extracapsular fractures. In the midface, CT facilitates attribution of trauma to the categories central, lateral, or combined centrolateral fractures. The last frequently encompass orbital trauma as well. CT is the imaging technique of choice to display the multiplicity of fragments, the degree of dislocation and rotation, or skull base involvement. Transsphenoid skull base fractures are classified into transverse and oblique types; lateral base (temporal bone) trauma is subdivided into longitudinal and transverse fractures. Supplementary MR examinations are required when a cranial nerve palsy occurs in order to recognize neural compression. Early and late complications of trauma related to the orbit, anterior cranial fossa, or lateral skull base due to infection, brain concussion, or herniation require CT to visualize the osseous prerequisites of complications, and MR to define the adjacent brain and soft tissue involvement. (orig.)

  11. Causes of maxillofacial patient mortality in a Nigerian tertiary hospital

    African Journals Online (AJOL)

    a Lecturer, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Bayero University, Kano and Consultant, Oral and Maxillofacial Surgeon,. Aminu Kano Teaching Hospital, Kano, Nigeria ... craniofacial trauma and stage IV malignancies [2, 3, 4]. Intraoperative deaths may also occur from anesthetic and/.

  12. Clinico-histopathologic types of maxillofacial malignancies with ...

    African Journals Online (AJOL)

    Clinico-histopathologic types of maxillofacial malignancies with emphasis on sarcomas: A 10-year review. ... Sarcomas peaked in the third decade with 70% occurring below the age of 40 years. The maxilla and the mandible were the most afflicted sites in the maxillofacial region accounting for 52%. The patients on average

  13. Maxillofacial fractures sustained during baseball and softball.

    Science.gov (United States)

    Yamamoto, Kazuhiko; Murakami, Kazuhiro; Sugiura, Tsutomu; Ishida, Jun-ichi; Imai, Yuichiro; Fujimoto, Masaki; Kirita, Tadaaki

    2009-04-01

    The purpose of this study was to investigate the demographics, the type of impact, the site and the treatment of maxillofacial fractures sustained during baseball and softball to develop an effective preventive strategy. Data of 82 patients treated for baseball- and softball-related maxillofacial fractures at the Department of Oral and Maxillofacial Surgery, Nara Medical University between 1982 and 2007 were retrospectively analyzed. Injuries were found in 64 men in baseball and 16 men and two women in softball with average ages of 19.6 and 30.0 years, respectively. Fractures were caused by being hit by the ball in 61 patients followed by collision in 16 patients. Fractures of the mandible and the mid-face were found in 44 and 38 patients, respectively. The mental and angle region of the mandible and zygoma and alveolar bone of the maxilla were frequently involved. Treatment was mostly conservative. Open reduction and internal fixation were performed only in 15 patients. Most maxillofacial fractures in these sports were ball-related. Therefore, effective preventive means should be considered to protect against such injuries.

  14. Landing-related ankle injuries do not occur in plantarflexion as once thought: a systematic video analysis of ankle injuries in world-class volleyball.

    Science.gov (United States)

    Skazalski, Christopher; Kruczynski, Jacek; Bahr, Martin Aase; Bere, Tone; Whiteley, Rod; Bahr, Roald

    2018-01-01

    Ankle injuries are prevalent in elite volleyball and suggested to result from player contact at the net. Traditionally, ankle sprains are thought to happen in a plantarflexed position, but case studies suggest plantarflexion may not be involved. Describe the injury situations and mechanisms of ankle injuries in world-class volleyball based on systematic video analysis of injuries reported through the Fédération Internationale de Volleyball (FIVB) Injury Surveillance System. Videos of 24 injuries from major FIVB tournaments were included for analysis (14 men, 10 women). Five analysts reviewed the videos to determine specific situations and mechanisms leading to injuries. The majority of injuries occurred during two volleyball situations, blocking (n=15) and attacking (n=6). Injuries to blockers were the result of landing on an opponent (n=11) or teammate (n=4). Attacking injuries most frequently occurred when a back-row player landed on a front-row teammate (n=4 of 6). When landing on an opponent under the net, the attacker landed into the opponent's court in 11 of 12 situations but without violating the centre line rule. Injuries mostly resulted from rapid inversion without any substantial plantarflexion. The majority of injuries occur while blocking, often landing on an opponent. The attacker is overwhelmingly to blame for injuries at the net secondary to crossing the centre line. Injuries while attacking often result from a back-row player landing on a front-row teammate. Landing-related injuries mostly result from rapid inversion with the absence of plantarflexion. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  15. Injury patterns in nordic ski jumpers. A retrospective analysis of injuries occurring at the Intervale Ski Jump Complex from 1980 to 1985.

    Science.gov (United States)

    Wright, J R; Hixson, E G; Rand, J J

    1986-01-01

    No studies describing the types and frequencies of nordic ski jumping injuries have been reported in the medical literature. We examined records of injuries sustained at the Intervale Ski Jump Complex (15, 40, 70, and 90 meter jumps) in Lake Placid from 1980 to 1985. Forty-seven injured jumpers sustained 72 total injuries. The most frequent injuries were contusions. Fractures occurred in 11 jumpers; most were nondisplaced. Upper extremity fractures outnumbered lower extremity fractures. Injuries requiring hospitalization were uncommon; none of these resulted in permanent disability. Injury rates for non-World Cup and for World Cup competitions were 4.3 and 1.2 injuries per 1,000 skier-days, respectively. This is roughly equivalent to injury rates in alpine skiing. Our study suggests that the dangers of nordic ski jumping have been overestimated.

  16. Demographics, nature and treatment of orthopaedic trauma injuries occurring in an agricultural context in the West of Ireland.

    LENUS (Irish Health Repository)

    Byrne, F J

    2011-03-01

    Farming is a major industry in the West of Ireland. This prospective study examined the age profile, nature and treatment of orthopaedic injuries occurring in agricultural surroundings presenting at the Orthopaedic Unit of Merlin Park Hospital, Galway.

  17. [Cranio-maxillofacial traumatology

    NARCIS (Netherlands)

    Kroon, F.H.; Beek, G.J.; Damme, P.A. van

    2007-01-01

    During the last 50 years, significant developments have taken place in the treatment of cranio-maxillofacial fractures. The aim of treatment is to achieve the most complete possible restoration of facial functions Epidemiologic figures for these fractures are sparsely available in the literature,

  18. Maxillofacial trauma due to road traffic accidents in Benin City ...

    African Journals Online (AJOL)

    Distribution of maxillofacial bone and soft tissue injuries by vehicle type as well as associated injuries were documented. Results: The minibus was the vehicle type most often involved (36.2%) and tyre blowout (21.2%) was identified as the most common contributory factor. Males 117 (37.5%) in the 21 – 30 year- age range ...

  19. A study on posttraumatic experience of road traffic accident afflicted maxillofacial trauma patient at tertiary hospital.

    Science.gov (United States)

    Yadav, Santosh Kumar; Shrestha, Suraksha

    2017-01-01

    Patients are usually left in a vulnerable state after an accident. Because of this, they long for a good encounter when they are brought to the hospital. Physical impairment and psychological morbidities are some of the complications that can occur to them. Traditionally, surgeons tend to pay little attention to a patient's emotional and psychological perspective. The aim of this study was to understand the experience of oral and maxillofacial trauma patients due to road traffic accident right from immediate after the accident till the end of definitive treatment. Phenomenological approach of qualitative study was used to explore these patients' experience. Twenty subjects involved in road traffic accidents without any cognitive impairment aged 18 and above were recruited. Purposive sampling was used to include maximal variation sample regarding age, gender, types of injury, and types of treatment received. Semi-structured and open-ended interview approach was used to obtain in-depth information. Seven themes were identified to describe the patients' response to and experience after meeting with a road traffic accident; they are unreal experiences, emotional responses, need to inform and need for information, need for assistance, their perception toward the maxillofacial injury, their experience on treatment and staff-patient interaction. This qualitative study has provided an in-depth understanding of patients experience during maxillofacial trauma and treatment, which otherwise cannot be obtained by the use of surveys and test questions.

  20. Intraear Compensation of Field Corn, Zea mays, from Simulated and Naturally Occurring Injury by Ear-Feeding Larvae.

    Science.gov (United States)

    Steckel, S; Stewart, S D

    2015-06-01

    Ear-feeding larvae, such as corn earworm, Helicoverpa zea Boddie (Lepidoptera: Noctuidae), can be important insect pests of field corn, Zea mays L., by feeding on kernels. Recently introduced, stacked Bacillus thuringiensis (Bt) traits provide improved protection from ear-feeding larvae. Thus, our objective was to evaluate how injury to kernels in the ear tip might affect yield when this injury was inflicted at the blister and milk stages. In 2010, simulated corn earworm injury reduced total kernel weight (i.e., yield) at both the blister and milk stage. In 2011, injury to ear tips at the milk stage affected total kernel weight. No differences in total kernel weight were found in 2013, regardless of when or how much injury was inflicted. Our data suggested that kernels within the same ear could compensate for injury to ear tips by increasing in size, but this increase was not always statistically significant or sufficient to overcome high levels of kernel injury. For naturally occurring injury observed on multiple corn hybrids during 2011 and 2012, our analyses showed either no or a minimal relationship between number of kernels injured by ear-feeding larvae and the total number of kernels per ear, total kernel weight, or the size of individual kernels. The results indicate that intraear compensation for kernel injury to ear tips can occur under at least some conditions. © The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  1. Occupational Maxillofacial Trauma: Report of a Rare Case

    Directory of Open Access Journals (Sweden)

    Dervisoglou Theodoros

    2015-03-01

    Full Text Available Maxillofacial trauma, any physical trauma in the face, can involve soft tissues (lacerations, avulsions, bruises etc, bone injuries (fractures and dislocation, avulsed or fractured teeth (dental issues and special regions (nerves, eyes, salivary glands etc. As the most exposed part of the human body, the face can be susceptible to injuries in work-related accidents. Occupational accident in the maxillofacial region rates 0.9-5% and, in some cases, can reach 9%. Based on their occupation, patients are classified as farm and forestry workers, construction workers, factory workers, craftsmen, service workers, and office workers.

  2. Current concepts in maxillofacial imaging

    Energy Technology Data Exchange (ETDEWEB)

    Boeddinghaus, Rudolf [Perth Radiological Clinic, 127 Hamersley Road, Subiaco, Western Australia 6008 (Australia)], E-mail: rboeddinghaus@perthradclinic.com.au; Whyte, Andy [Perth Radiological Clinic, 127 Hamersley Road, Subiaco, Western Australia 6008 (Australia)], E-mail: awhyte@perthradclinic.com.au

    2008-06-15

    A review of state-of-the-art maxillofacial imaging is presented. Current imaging techniques include intra-oral radiographs, dental panoramic tomography, multidetector helical computed tomography, cone-beam computed tomography (CBCT) and magnetic resonance imaging (MRI). The commonest conditions encountered in clinical radiological practice are reviewed, including maxillofacial deformities, complicated dental impactions, maxillofacial trauma, jaw lesions (cysts, neoplasms, fibro-osseous lesions (FOLs) and infections), and temporomandibular joint pathology. Pre-operative assessment for dental implant placement is also briefly reviewed.

  3. Incidence and MRI characterization of the spectrum of posterolateral corner injuries occurring in association with ACL rupture

    Energy Technology Data Exchange (ETDEWEB)

    Frois Temponi, Eduardo [Hospital Madre Teresa, Belo Horizonte, Minas Gerais (Brazil); Honorio de Carvalho, Lucio Jr. [Hospital Madre Teresa, Belo Horizonte, Minas Gerais (Brazil); Universidade Federal de Minas Gerais, Departamento do Aparelho Locomotor, Faculdade de Medicina, Belo Horizonte, Minas Gerais (Brazil); Saithna, Adnan [Southport and Ormskirk Hospitals, Southport (United Kingdom); University of Liverpool, Department of Clinical Engineering, Liverpool (United Kingdom); Thaunat, Mathieu; Sonnery-Cottet, Bertrand [Centre Orthopedic Santy, FIFA Medical Center of Excellence, Ramsay-Generale de Sante, Hopital Prive Jean Mermoz, Lyon (France)

    2017-08-15

    To determine the incidence and MRI characteristics of the spectrum of posterolateral corner (PLC) injuries occurring in association with anterior cruciate ligament (ACL) rupture. We carried out a level IV, retrospective case series study. All patients clinically diagnosed with an ACL rupture between July 2015 and June 2016 who underwent MRI of the knee were included in the study. In addition to standard MRI knee reporting, emphasis was placed on identifying injury to the PLC and a description of involvement of these structures by two musculoskeletal radiologists. Association with PLC involvement was sought with concomitant injuries using correlation analysis and logistic regression. One hundred sixty-two patients with MRI following ACL rupture were evaluated. Thirty-two patients (19.7%) had an injury to at least one structure of the PLC, including the inferior popliteomeniscal fascicle (n = 28), arcuate ligament (n = 20), popliteus tendon (n = 20), superior popliteomeniscal fascicle (n = 18), lateral collateral ligament (n = 8), popliteofibular ligament (n = 7), biceps tendon (n = 4), iliotibial band (n = 3), and fabellofibular ligament (n = 1). Seventy-five percent of all patients with combined ACL and PLC injuries had bone contusions involving the lateral compartment of the knee. The presence of these contusions strongly correlated with superior popliteomeniscal fascicle lesions (p < 0.05). There was no correlation between injuries to other structures of the PLC and other intra-articular lesions. Missed injuries of the PLC lead to considerable morbidity. The relevance of this study is to highlight that these injuries occur more frequently than previously described and that an appropriate index of suspicion, clinical examination, and MRI are all required to reduce the risk of missed diagnoses. The results of this study support previous suggestions that the rate of concomitant PLC injury in the ACL-deficient knee is under-reported. The rate of combined injuries in

  4. Maxillofacial trauma of pediatric patients in Malaysia: a retrospective study from 1999 to 2001 in three hospitals.

    Science.gov (United States)

    Rahman, Roslan Abdul; Ramli, Roszalina; Rahman, Normastura Abdul; Hussaini, Haizal Mohd; Idrus, Sharifah Munirah Ai; Hamid, Abdul Latif Abdul

    2007-06-01

    Maxillofacial trauma in children is not common worldwide. Domestic injuries are frequently seen in younger children while older children are mostly involved in motor vehicle accidents (MVA). The objective of this study was to analyze the pattern of maxillofacial injuries in pediatric patients referred to three government main hospitals in different areas of West Malaysia. Patients' records of three selected hospitals in Malaysia (National University of Malaysia Hospital, Kajang Hospital and Seremban Hospital) from January 1999 to December 2001 were reviewed. Data associated with demographics, etiology of injury in relation to age group, type of injuries whether soft tissues of hard tissue in relation to age group and treatment modalities were collected. A total of 521 pediatric patients' records were reviewed. Malays made up the majority of patients with maxillofacial injuries in the three hospitals. Males outnumbered females in all the three hospitals. Injuries commonly occur in the 11-16 years old. MVA was the most common etiology followed by fall and assault. Soft tissue injuries were the most common type of injuries in all the hospitals. In relation to fractures, mandible was the most common bone to fracture with condyle being the most common site. Orbital fracture was the most common fracture in the midfacial area. Most of the fractures were managed conservatively especially in the younger age groups. Open reduction with or without internal fixation was more frequently carried out in the 11-16 years old group. Children exhibit different pattern of clinical features depending on the etiology and stage of their bone maturation. A dedicated team, who is competent in trauma and aware of the unique anatomy, physical and psychological characteristics of children, should manage pediatric patient with trauma.

  5. Management of maxillofacial trauma in emergency: An update of challenges and controversies

    Directory of Open Access Journals (Sweden)

    Anson Jose

    2016-01-01

    Full Text Available Trauma management has evolved significantly in the past few decades thereby reducing mortality in the golden hour. However, challenges remain, and one such area is maxillofacial injuries in a polytrauma patient. Severe injuries to the maxillofacial region can complicate the early management of a trauma patient owing to the regions proximity to the brain, cervical spine, and airway. The usual techniques of airway breathing and circulation (ABC management are often modified or supplemented with other methods in case of maxillofacial injuries. Such modifications have their own challenges and pitfalls in an already difficult situation.

  6. Does sucralfate prevent apoptosis occurring in the ischemia/reperfusion-induced intestinal injury?

    Science.gov (United States)

    Sencan, A; Yilmaz, O; Ozer, E; Günşar, C; Genç, K; Ulukuş, C; Taneli, C; Mir, E

    2003-08-01

    We have shown in a previous study that sucralfate is beneficial in the prophylaxis and treatment of hypoxia/reoxygenation-induced intestinal injury. The aim of this study is to investigate whether sucralfate has any effect on the prevention of apoptosis in the ischemia/reperfusion (I/R)-induced intestinal injury. Rats were randomized into three groups. Group 1 and 2 were subjected to I/R. Group 1 (treatment group) received sucralfate while group 2 (treatment control group) did not. Group 3 served as a normal control group (sham group). The terminal ileum was harvested for histopathologic investigation by light microscopy. The presence of apoptotic enterocytes (DNA fragmentation in cell nuclei) was detected by terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick-end-labeling (TUNEL) reaction. In treatment control group, 3 of 7 rats had severe inflammation. None of the sucralfate-treated rats showed severe inflammation, 6 of them only showed mild inflammatory changes (p < 0.05). The apoptotic percentage was found to be 37.1 +/- 9.4 in the sucralfate-treated group (group 1), whereas it was 45.4 +/- 3.9 in the untreated group (group 2) (p < 0.05). The sham group had a completely normal intestinal architecture. The present study shows that 1) the experimental model of I/R-induced intestinal injury induces enterocyte apoptosis; 2) sucralfate decreases enterocyte apoptosis in the experimental model of I/R-induced intestinal injury which may play a key role in the pathophysiological events leading to failure of the intrinsic gut barrier defense mechanisms.

  7. Impaired macrophage and satellite cell infiltration occurs in a muscle-specific fashion following injury in diabetic skeletal muscle.

    Directory of Open Access Journals (Sweden)

    Matthew P Krause

    Full Text Available Systemic elevations in PAI-1 suppress the fibrinolytic pathway leading to poor collagen remodelling and delayed regeneration of tibialis anterior (TA muscles in type-1 diabetic Akita mice. However, how impaired collagen remodelling was specifically attenuating regeneration in Akita mice remained unknown. Furthermore, given intrinsic differences between muscle groups, it was unclear if the reparative responses between muscle groups were different.Here we reveal that diabetic Akita muscles display differential regenerative responses with the TA and gastrocnemius muscles exhibiting reduced regenerating myofiber area compared to wild-type mice, while soleus muscles displayed no difference between animal groups following injury. Collagen levels in TA and gastrocnemius, but not soleus, were significantly increased post-injury versus controls. At 5 days post-injury, when degenerating/necrotic regions were present in both animal groups, Akita TA and gastrocnemius muscles displayed reduced macrophage and satellite cell infiltration and poor myofiber formation. By 10 days post-injury, necrotic regions were absent in wild-type TA but persisted in Akita TA. In contrast, Akita soleus exhibited no impairment in any of these measures compared to wild-type soleus. In an effort to define how impaired collagen turnover was attenuating regeneration in Akita TA, a PAI-1 inhibitor (PAI-039 was orally administered to Akita mice following cardiotoxin injury. PAI-039 administration promoted macrophage and satellite cell infiltration into necrotic areas of the TA and gastrocnemius. Importantly, soleus muscles exhibit the highest inducible expression of MMP-9 following injury, providing a mechanism for normative collagen degradation and injury recovery in this muscle despite systemically elevated PAI-1.Our findings suggest the mechanism underlying how impaired collagen remodelling in type-1 diabetes results in delayed regeneration is an impairment in macrophage

  8. Intra‑Operative Airway Management in Patients with Maxillofacial ...

    African Journals Online (AJOL)

    the surgeon and the anesthetist is naturally a challenge for both specialists. In addition to this, when traumatic maxillofacial injury results in the disruption of the normal anatomy from edema or structural damage to tissues, bleeding, unstable skeletal structures, and foreign bodies that can interfere with instrumentation or ...

  9. Maxillofacial injuries and dental trauma in patients aged 19-80 years, Recife, Brazil Lesiones maxilofaciales y traumatismo dental en pacientes de 19 a 80 años, Recife, Brasil

    Directory of Open Access Journals (Sweden)

    A. Leite Cavalcanti

    2010-03-01

    Full Text Available Aim: A retrospective study was undertaken to assess causes of maxillofacial trauma in Recife, Pernambuco, Brazil. Method: A review of 186 patients with maxillofacial injuries aged 19 and 83 years old seen and treated at the Hospital da Restauração between January and December 2006 was conducted and were analyzed according to age, sex, etiology, site of fracture, dentoalveolar trauma and alcohol abuse. Analysis was made in Epi Info using the Chi-square and Fisher´s Exact Tests. Results: It was found that maxillofacial injuries were most frequent in males (89.2% and in the 19-28 year age group (46.8%. Traffic accidents/motorcycle (23.7% and physical violence (20.4% were the most common etiological factor. Facial fractures were detected in 90.9% and a statistically significant difference between sex and facial fracture was found (p = 0.000. The most common facial fracture was maxilla (29.1%, followed by the mandible (27.5%. A positive association between the presence of facial fracture and alcohol consumption was observed (p = 0.002. Dentoalveolar trauma was present in 7.5% of patients. Conclusion: The incidence of facial fractures in Brazilian population is similar than previously reported elsewhere. There were most common in male patients, mainly due to traffic accidents/motorcycle and physical violence.Objetivo: Se llevó a cabo un estudio retrospectivo para evaluar las causas de traumatismo maxilofacial en Recife, Pernambuco, Brasil. Método: Se hizo una revisión de 186 pacientes con lesiones maxilofaciales de 19 a 83 años atendidos y tratados en el Hospital da Restauração entre Enero y Diciembre 2006, analizándoles según edad, sexo, etiología, localización de la fractura, traumatismo dentoalveolar y abuso de alcohol. Se llevó a cabo el análisis en Epi Info, utilizando el Chi cuadrado y la prueba exacta de Fisher. Resultados: Resultó que las lesiones maxilofaciales fueron más frecuentes en los hombres (89,2% y en el grupo de edad

  10. A traumatic central cord syndrome occurring after adequate decompression for cervical spondylosis: biomechanics of injury: case report.

    Science.gov (United States)

    Dickerman, Rob D; Lefkowitz, Michael; Epstein, Joseph A

    2005-10-15

    Case report with review of the literature. To present the first case of a central cord syndrome occurring after adequate decompression, and review the mechanics of the cervical spinal cord injury and postoperative biomechanical and anatomic changes occurring after cervical decompressive laminectomy. Cervical spondylosis is a common pathoanatomic occurrence in the elderly population and is thought to be one of the primary causes for a central cord syndrome. Decompressive laminectomy with or without fusion has been a primary treatment for spondylotic disease and is thought to be protective against further injury. To our knowledge, there are no cases of a central cord syndrome occurring after adequate decompression reported in the literature. Case study with extensive review of the literature. The patient underwent C3-C7 cervical laminectomy without complications. After surgery, the patient's spasticity and gait difficulties improved. She was discharged to inpatient rehabilitation for further treatment of upper extremity weakness. The patient fell in the rehabilitation center, with a central cord syndrome despite adequate decompression of her spinal canal. The patient was treated conservatively for the central cord and had minimal improvement. Decompressive laminectomy provides an immediate decompressive effect on the spinal cord as seen by the dorsal migration of the cord, however, the biomechanics of the cervical spine after decompressive laminectomy remain uncertain. This case supports the ongoing research and need for more intensive research on postoperative cervical spine biomechanics, including decompressive laminectomies, decompressive laminectomy and fusion, and laminoplasty.

  11. Radiographic evaluation of maxillofacial fractures

    International Nuclear Information System (INIS)

    Litwan, M.; Fliegel, C.

    1986-01-01

    The course and configuration of typical maxillofacial fractures (type Le Fort I-III) and lateral maxillary fractures including the zygomatic arch were reconstructed in detail by application of barium paste on a bony skull and radiogrpahs in standard projections were performed and evaluated. It was obvious from the resulting radiographs that for most maxillofacial fractures a half axial or Water's view was most helpful. Lateral views only give additional information when there is a considerable degree of dislocation of fragments. Comparison with a prediatric skull of 8 years of age demonstrated that fractures of the zygomatic arch in this age group cannot be demonstrated by the typical submento-vertical view, but are shown on a Towne projection. The radiographic appearance of important maxillofacial fractures is demonstrated. The necessity of further studies in cases where reconstructive surgery appears necessary is discussed and CT rather then conventional tomography is advocated. (orig.) [de

  12. Reasonable application of antibiotic prophylaxis in maxillofacial trauma: Literature review

    Directory of Open Access Journals (Sweden)

    Afshin Yadegari Naeeni

    2016-07-01

    Full Text Available Background and Aims: Despite advances in trauma management, treatment of the consequent infections has remained a major challenge. Antibiotic prophylaxis has been widely applied to reduce such infections. Although bacteria are present in most body parts, severe infections after treatment are less frequent in the head and neck of healthy individuals. The aim of the present study was to review the reasonable application of antibiotic prophylaxis in maxillofacial trauma. Materials and Methods: In this review article, PubMed and Google Scholar databases were searched for studies on antibiotic prophylaxis in maxillofacial trauma published during 2000-2014. Conclusion: Antibiotics were not prescribed for tears and small clean wounds in the face and mouth. However, prophylaxis was applied for extensive mouth injuries which involved the facial skin. In case of maxillofacial fractures, 24-hour administration of antibiotics sufficed for compound fractures of the mandible and other parts of the face. Antibiotics were not required in other types of fractures. Prophylaxis should be applied over short pre- or post-operative periods based on the severity and complexity of maxillofacial fractures and their relations with intra- and extraoral environments. Apparently, more detailed studies are warranted to further clarify the subject.

  13. Rapid prototyping-assisted maxillofacial reconstruction.

    Science.gov (United States)

    Peng, Qian; Tang, Zhangui; Liu, Ousheng; Peng, Zhiwei

    2015-05-01

    Rapid prototyping (RP) technologies have found many uses in dentistry, and especially oral and maxillofacial surgery, due to its ability to promote product development while at the same time reducing cost and depositing a part of any degree of complexity theoretically. This paper provides an overview of RP technologies for maxillofacial reconstruction covering both fundamentals and applications of the technologies. Key fundamentals of RP technologies involving the history, characteristics, and principles are reviewed. A number of RP applications to the main fields of oral and maxillofacial surgery, including restoration of maxillofacial deformities and defects, reduction of functional bone tissues, correction of dento-maxillofacial deformities, and fabrication of maxillofacial prostheses, are discussed. The most remarkable challenges for development of RP-assisted maxillofacial surgery and promising solutions are also elaborated.

  14. Computed tomography in the diagnosis of fractures of the maxillofacial area

    International Nuclear Information System (INIS)

    Angelova, I.; Yordanov, G.; Sirakov, V.; Velkova, K.

    2013-01-01

    Computed tomography (CT) is the current method of study in maxillofacial region, which produces cross-sectional images of a specific area. There are still questions about methodology and radiation exposure. The aim of the present study is to evaluate the CT in diagnosis of fractures in maxillofacial region. 42 patients with traumatic injuries to the facial skeleton are examined. Fractures of maxilla are occurring in 14.6 % of patients with traumatic diseases. Fractures of maxilla and zygomatic bone are found in 29.3 percent of the traumatic event. Isolated nasal bone fracture is observed in 2.4% of ail fractures. Compound fractures constitute 17.1% of the tested fractures. This group of patients are positioned at second place in frequency. Mandibular fractures ranked first in frequency -36.6% of all traumatic lesions. The methods include: 1. Slice computed tomography in the axial and coronary projection 2. Spiral CT in axial projection and coronary one. 3. Cone Beam Computed Tomography. CT diagnosis is based on an analysis of all the images. It must comply with the data from other studies. When analyzing the results we found that the percentage of patients with primary diagnosis of fractured upper jaw is 11 %, while CT diagnosis of this percentage increases to 16%. The percentage of patients with primary diagnosis fracture of mandibula and CT diagnosis is almost identical. In the present study, 3D and CT have similar results in the detection of fractures. Three-dimensional images dearly show the spatial anatomy of the face, the presence of fragments, as well as monitoring of fracture lines. Key words; Fractures. Maxillofacial Area. CT

  15. Airway Management of the Patient with Maxillofacial Trauma: Review of the Literature and Suggested Clinical Approach

    Directory of Open Access Journals (Sweden)

    Michal Barak

    2015-01-01

    Full Text Available According to the Advanced Trauma Life Support recommendations for managing patients with life-threatening injuries, securing the airway is the first task of a primary caregiver. Airway management of patients with maxillofacial trauma is complex and crucial because it can dictate a patient’s survival. Securing the airway of patients with maxillofacial trauma is often extremely difficult because the trauma involves the patient’s airway and their breathing is compromised. In these patients, mask ventilation and endotracheal intubation are anticipated to be difficult. Additionally, some of these patients may not yet have been cleared of a cervical spine injury, and all are regarded as having a full stomach and having an increased risk of regurgitation and pulmonary aspiration. The requirements of the intended maxillofacial operation may often preclude the use of an oral intubation tube, and alternative methods for securing the airway should be considered before the start of the surgery. In order to improve the clinical outcome of patients with maxillofacial trauma, cooperation between maxillofacial surgeons, anesthesiologists, and trauma specialists is needed. In this review, we discuss the complexity and difficulties of securing the airway of patients with maxillofacial trauma and present our approach for airway management of such patients.

  16. Maxillofacial trauma in Tamil Nadu children and adolescents: A retrospective study

    Directory of Open Access Journals (Sweden)

    Ramraj Jayabalan Arvind

    2013-01-01

    Full Text Available Aim: The aim of this retrospective study is to describe the incidence, aetiology, complexity and surgical indications of maxillofacial injuries in children and adolescents population of Tamil Nadu state of india during period of 4 years. Materials and Methods: A retrospective review was conducted among 500 children and adolescents patients of age group 6 years to 16 years suffered or suffering with maxillofacial and skull fractures presenting to ten Level I trauma centers over a 4 year period.The data collected for this study included age, gender, etiology, associated maxillofacial trauma, anatomic site of fracture and treatment. Results and Conclusion: In our study the most common cause of trauma was traffic 35%, followed by falls 24% and sports 22%. Mandible was commenest bone prone to fracture, followed by maxilla and nasal bone. Mandible fractures accounted for 72% of all maxillofacial fractures.

  17. Biomechanical analysis of ankle ligamentous sprain injury cases from televised basketball games: Understanding when, how and why ligament failure occurs.

    Science.gov (United States)

    Panagiotakis, Emmanouil; Mok, Kam-Ming; Fong, Daniel Tik-Pui; Bull, Anthony M J

    2017-12-01

    Ankle sprains due to landing on an opponent's foot are common in basketball. There is no analysis to date that provides a quantification of this injury mechanism. The aim of this study was to quantify the kinematics of this specific injury mechanism and relate this to lateral ankle ligament biomechanics. Case series. The model-based image-matching technique was used to quantify calcaneo-fibular-talar kinematics during four ankle inversion sprain injury incidents in televised NBA basketball games. The four incidents follow the same injury pattern in which the players of interest step onto an opponent's foot with significant inversion and a diagnosed ankle injury. A geometric analysis was performed to calculate the in vivo ligament strains and strain rates for the anterior talofibular ligament (ATFL) and the calcaneofibular ligament (CFL). Despite the controlled selection of cases, the results show that there are two distinct injury mechanisms: sudden inversion and internal rotation with low levels of plantarflexion; and a similar mechanism without internal rotation. The first of these mechanisms results in high ATFL and CFL strains, whereas the second of these strains the CFL in isolation. The injury mechanism combined with measures of the ligament injury in terms of percentage of strain to failure correlate directly with the severity of the injury quantified by return-to-sport. The opportunity to control excessive internal rotation through proprioceptive training and/or prophylactic footwear or bracing could be utilised to reduce the severity of common ankle injuries in basketball. Copyright © 2017 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  18. Subsequent publication of oral and maxillofacial surgery meeting abstracts.

    Science.gov (United States)

    Rodriguez, Joseph L; Laskin, Daniel M

    2012-05-01

    Previous studies in various medical specialties have shown that fewer than 50% of abstracts presented at meetings are subsequently published. The purpose of the present study was to determine the publication rate of abstracts presented at the annual meetings of the American Association of Oral and Maxillofacial Surgeons. The titles and authors of the abstracts from all oral abstract session presentations and posters by American contributors were collected from the Final Programs of the American Association of Oral and Maxillofacial Surgeons annual meetings for 2006 to 2009. A PubMed search for published articles through December 2010 was then performed using the authors' names, abstract titles, and key words. A total of 311 abstract presentations were done at the 4 annual meetings. Of these, only 85 (24%) were subsequently published. No difference was found between abstracts from oral or poster presentations. Most of the articles were published in the Journal of Oral and Maxillofacial Surgery. Because of deficiencies that can occur in abstracts and the need to disseminate the information they contain, it is important to take the appropriate measures to ensure that full articles are subsequently published. Copyright © 2012 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  19. Psychiatric analysis of suicide attempt subjects due to maxillofacial gunshot.

    Science.gov (United States)

    Oztürk, Serdar; Bozkurt, Ali; Durmus, Muzaffer; Deveci, Mustafa; Sengezer, Mustafa

    2006-11-01

    The studies of maxillofacial gunshot injuries mainly focused on evaluating the surgical interventions and physical outcomes of the procedures. In this study we aimed to analyze the pre- and post-injury psychiatric status of the patients with self-inflicted gunshot wounds to the face. This study is based on 12 subjects who attempted suicide resulting in extensive maxillofacial injuries using guns placed beneath their chins. The psychiatric evaluation was conducted by interview and using SCID-I, SCID-II, MMPI, Rosenberg Self-Esteem Scale and Suicide Probability Scale. Two subjects were healthy, 1 had bereavement, 6 had current and 5 had previous MDD (major depressive disorder), 2 had dysthymic disorder, 3 had alcohol abuse, 2 had drug abuse and 4 had antisocial personality disorder. The suicidal group was more socially introverted according to MMPI. According to Rosenberg self-esteem subscale, self esteem, the constancy of self respect and depressive mood subtests were statistically significant in the suicide group compared to the healthy controls (P suicide. The changes in the physical facial appearance after the suicide attempt caused impairment of self-esteem and the constancy of self-respect. Similar to other studies, none of our patients reattempted suicide and all tried to return to their pre-injury lifestyle and appeared to accommodate to the stigma of their physical deformities. Early diagnosis and treatment should be considered as a factor to reduce the risk for suicide attempt.

  20. Recurrent bacterial meningitis occurring five years after closed head injury and caused by an intranasal post-traumatic meningo-encephalocele.

    Science.gov (United States)

    Giunta, G.; Piazza, I.

    1991-01-01

    A case of atypical presentation of a post-traumatic intranasal meningo-encephalocele is described in a patient with a history of recurrent bacterial meningitis occurring 5 years after closed head injury. The usefulness of the CT and MRI findings in diagnostic evaluation of this lesion is emphasized. Images Figure 1 Figure 2 PMID:2068033

  1. Review of Maxillofacial Hardware Complications and Indications for Salvage

    OpenAIRE

    Hernandez Rosa, Jonatan; Villanueva, Nathaniel L.; Sanati-Mehrizy, Paymon; Factor, Stephanie H.; Taub, Peter J.

    2015-01-01

    From 2002 to 2006, more than 117,000 facial fractures were recorded in the U.S. National Trauma Database. These fractures are commonly treated with open reduction and internal fixation. While in place, the hardware facilitates successful bony union. However, when postoperative complications occur, the plates may require removal before bony union. Indications for salvage versus removal of the maxillofacial hardware are not well defined. A literature review was performed to identify instances w...

  2. Secondary reconstruction of maxillofacial trauma.

    Science.gov (United States)

    Castro-Núñez, Jaime; Van Sickels, Joseph E

    2017-08-01

    Craniomaxillofacial trauma is one of the most complex clinical conditions in contemporary maxillofacial surgery. Vital structures and possible functional and esthetic sequelae are important considerations following this type of trauma and intervention. Despite the best efforts of the primary surgery, there are a group of patients that will have poor outcomes requiring secondary reconstruction to restore form and function. The purpose of this study is to review current concepts on secondary reconstruction to the maxillofacial complex. The evaluation of a posttraumatic patient for a secondary reconstruction must include an assessment of the different subunits of the upper face, middle face, and lower face. Virtual surgical planning and surgical guides represent the most important innovations in secondary reconstruction over the past few years. Intraoperative navigational surgery/computed-assisted navigation is used in complex cases. Facial asymmetry can be corrected or significantly improved by segmentation of the computerized tomography dataset and mirroring of the unaffected side by means of virtual surgical planning. Navigational surgery/computed-assisted navigation allows for a more precise surgical correction when secondary reconstruction involves the replacement of extensive anatomical areas. The use of technology can result in custom-made replacements and prebent plates, which are more stable and resistant to fracture because of metal fatigue. Careful perioperative evaluation is the key to positive outcomes of secondary reconstruction after trauma. The advent of technological tools has played a capital role in helping the surgical team perform a given treatment plan in a more precise and predictable manner.

  3. Additive manufacturing in maxillofacial reconstruction

    Directory of Open Access Journals (Sweden)

    Dincă Luciana Laura

    2017-01-01

    Full Text Available In this paper the benefits of using additive manufacturing technologies in maxillofacial reconstruction are highlighted. Based on a real clinical case, the paper describes the manufacture of an implant prototype replacing the right zygomatic bone and a part of maxilla using additive manufacturing technologies. The face is the most expressive part of the human body that makes us unique. It was shown that the maxillofacial prostheses help to improve the psychological state of patients affected by, because low self esteem feeling appears commonly to this patients with the facial defects. The aim of this paper is to show how using additive manufacturing technologies methods within this research, the producing a surgical model will help surgeon to improve the pre-operative planning. For this we used additive manufacturing technologies such as Stereolitography to achieve the biomodel and FDM-fused deposition modelling to obtain a prototype model because these technologies make it possible to obtain prosthesis according to the physical and mechanical requirements of the region of implantation.

  4. Treatment cost of patients with maxillofacial fractures at the University Hospital in Mostar 2002-2006.

    Science.gov (United States)

    Jurić, Mario; Novakovic, Josip; Carapina, Mirela; Kneiević, Ervin

    2010-03-01

    The aim of this study was to establish the costs structure of medical treatment for the patients with maxillofacial fractures, to perform a treatment cost evaluation, describe the factors which considerably influence the costs and discover the ways of achieving financial savings in treated patients. The study group consisted of patients with maxillofacial fractures who were admitted and treated at the Department of Maxillofacial Surgery of the University Hospital Mostar in the period from January 2002 until December 2006. Data for the study were collected from the patients' databases, case histories and data obtained on the basis of individual payments for the treatment that was collected by Finance Department of the University Hospital of Mostar Most patients in this study were men (83%), of average age 34 +/- 19 years. Zygomatic bone fracture was the commonest injury. Open surgical procedure was performed in 84.7% of treated cases. The costs for the open procedure were considerably higher than conservative treatment. Medication cost made up a total of 37.9% and cost of hospital accommodation 27.3% out of total hospital charge. Cost reduction in treated patients with maxillofacial fractures should be achieved through protocols of urgent treatment of maxillofacial trauma patients immediately after sustaining an injury and with earlier discharge of the patients when postoperative complications are not expected.

  5. Maxillofacial trauma patient: coping with the difficult airway

    Directory of Open Access Journals (Sweden)

    Barak Michal

    2009-05-01

    Full Text Available Abstract Establishing a secure airway in a trauma patient is one of the primary essentials of treatment. Any flaw in airway management may lead to grave morbidity and mortality. Maxillofacial trauma presents a complex problem with regard to the patient's airway. By definition, the injury compromises the patient's airway and it is, therefore, must be protected. In most cases, the patient undergoes surgery for maxillofacial trauma or for other, more severe, life-threatening injuries, and securing the airway is the first step in the introduction of general anaesthesia. In such patients, we anticipate difficult endotracheal intubation and, often, also difficult mask ventilation. In addition, the patient is usually regarded as having a "full stomach" and has not been cleared of a C-spine injury, which may complicate airway management furthermore. The time available to accomplish the task is short and the patient's condition may deteriorate rapidly. Both decision-making and performance are impaired in such circumstances. In this review, we discuss the complexity of the situation and present a treatment approach.

  6. Airway Management in Maxillofacial Trauma: A Retrospective Review of 127 Cases

    Directory of Open Access Journals (Sweden)

    V Saraswat

    2008-01-01

    Maxillofacial injuries need special attention since it involves difficult airway due to fracture to facial bones, Further the airway is shared with surgeon and restrictions are imposed during surgery. Issues involved are time of surgery, preoperative airway assessment, type of intubation and way to achieve it, alternative methods available and their complications.

  7. Update of patient-specific maxillofacial implant.

    Science.gov (United States)

    Owusu, James A; Boahene, Kofi

    2015-08-01

    Patient-specific implant (PSI) is a personalized approach to reconstructive and esthetic surgery. This is particularly useful in maxillofacial surgery in which restoring the complex three-dimensional (3D) contour can be quite challenging. In certain situations, the best results can only be achieved with implants custom-made to fit a particular need. Significant progress has been made over the past decade in the design and manufacture of maxillofacial PSIs. Computer-aided design (CAD)/computer-aided manufacturing (CAM) technology is rapidly advancing and has provided new options for fabrication of PSIs with better precision. Maxillofacial PSIs can now be designed using preoperative imaging data as input into CAD software. The designed implant is then fabricated using a CAM technique such as 3D printing. This approach increases precision and decreases or completely eliminates the need for intraoperative modification of implants. The use of CAD/CAM-produced PSIs for maxillofacial reconstruction and augmentation can significantly improve contour outcomes and decrease operating time. CAD/CAM technology allows timely and precise fabrication of maxillofacial PSIs. This approach is gaining increasing popularity in maxillofacial reconstructive surgery. Continued advances in CAD technology and 3D printing are bound to improve the cost-effectiveness and decrease the production time of maxillofacial PSIs.

  8. New maxillofacial infrared detection technologies

    Energy Technology Data Exchange (ETDEWEB)

    Reshetnikov, A. P.; Kopylov, M. V.; Nasyrov, M. R., E-mail: marat.1994@me.com; Fisher, E. L.; Chernova, L. V. [Izhevsk State Medical Academy, Izhevsk, Russia (426034, Izhevsk, Kommunarov street, 281) (Russian Federation); Soicher, E. M. [Moscow State University of Medicine and Dentistry named after A.I. Evdokimov of the Ministry of Health of the Russian Federation, Moscow, Russia, (127473, Moscow, Delegatskaya str., 20/1) (Russian Federation)

    2015-11-17

    At the dental clinic the infrared range radiation spectrum of tissues was used to study the dynamics of local temperature and structure of the skin, subcutaneous fat, and other tissues of the maxillofacial area in adult healthy volunteers and patients. In particular, we studied the dynamics of local temperature of mucous membranes of the mouth, teeth, and places in the mouth and dental structures in the norm and in various pathological conditions of the lips, gums, teeth, tongue, palate, and cheeks before, during and after chewing food, drinking water, medication, and inhalation of air. High safety and informational content of infrared thermography are prospective for the development of diagnostics in medicine. We have 3 new methods for infrared detection protected by patents in Russia.

  9. Fracture patterns in the maxillofacial region: a four-year retrospective study

    Science.gov (United States)

    2015-01-01

    Objectives The facial bones are the most noticeable area in the human body, and facial injuries can cause significant functional, aesthetic, and psychological complications. Continuous study of the patterns of facial bone fractures and changes in trends is helpful in the prevention and treatment of maxillofacial fractures. The purpose of the current clinico-statistical study is to investigate the pattern of facial fractures over a 4-year period. Materials and Methods A retrospective analysis of 1,824 fracture sites was carried out in 1,284 patients admitted to SMG-SNU Boramae Medical Center for facial bone fracture from January 2010 to December 2013. We evaluated the distributions of age/gender/season, fracture site, cause of injury, duration from injury to treatment, hospitalization period, and postoperative complications. Results The ratio of men to women was 3.2:1. Most fractures occurred in individuals aged between teens to 40s and were most prevalent at the middle and end of the month. Fractures occurred in the nasal bone (65.0%), orbital wall (29.2%), maxillary wall (15.3%), zygomatic arch (13.2%), zygomaticomaxillary complex (9.8%), mandibular symphysis (6.5%), mandibular angle (5.9%), mandibular condyle (4.9%), and mandibular body (1.9%). The most common etiologies were fall (32.5%) and assault (26.0%). The average duration of injury to treatment was 6 days, and the average hospitalization period was 5 days. Eighteen postoperative complications were observed in 17 patients, mainly infection and malocclusion in the mandible. Conclusion This study reflects the tendency for trauma in the Seoul metropolitan region because it analyzes all facial fracture patients who visited our hospital regardless of the specific department. Distinctively, in this study, midfacial fractures had a much higher incidence than mandible fractures. PMID:26734557

  10. A Study of Streptococcus Viridans in the Maxillofacial Region

    Directory of Open Access Journals (Sweden)

    Y. Refoua

    2005-12-01

    Full Text Available Statement of Problem: Streptococcus viridans is one of the most important microorganisms in the establishment of infections leading to dental caries and heart valve damages. Therefore the diagnosis and prevention of these infections is critical in health care.Purpose: The aim of this in-vivo study was to determine the prevalence of viridans streptococci in abscesses occurring in the maxillofacial region.Materials and Methods: The study sample consisted of 39 patients with maxillofacial abscesses, referred to the Department of Oral Surgery Faculty of Dentistry Tehran University of Medical Sciences and Dr. Shariati Hospital, Tehran University of Medical Sciences. Extra-oral incision, drainage and pus collection followed by culture, staining and biochemical and sugar fermentation tests were carried out for all participants.Results: In the present study %53.84 and 46.16% of the patients had negative and positive culture results, respectively. In the positive culture group, %2.5 of the viridans streptococci were streptococcus salivarius, %4.6 streptococcus sanguis and %17.9 were streptococcus mutans.Conclusion: The findings of this study showed that viridans streptococci are an important factor in the development of metastatic and maxillofacial infections which can pose a significant threat to the patient’s life.

  11. Risk of surgical glove perforation in oral and maxillofacial surgery.

    Science.gov (United States)

    Kuroyanagi, N; Nagao, T; Sakuma, H; Miyachi, H; Ochiai, S; Kimura, Y; Fukano, H; Shimozato, K

    2012-08-01

    Oral and maxillofacial surgery, which involves several sharp instruments and fixation materials, is consistently at a high risk for cross-contamination due to perforated gloves, but it is unclear how often such perforations occur. This study aimed to address this issue. The frequency of the perforation of surgical gloves (n=1436) in 150 oral and maxillofacial surgeries including orthognathic surgery (n=45) was assessed by the hydroinsufflation technique. Orthognathic surgery had the highest perforation rate in at least 1 glove in 1 operation (91.1%), followed by cleft lip and palate surgery (55.0%), excision of oral soft tumour (54.5%) and dental implantation (50.0%). The perforation rate in scrub nurses was 63.4%, followed by 44.4% in surgeons and first assistants, and 16.3% in second assistants. The odds ratio for the perforation rate in orthognathic surgery versus other surgeries was 16.0 (95% confidence interval: 5.3-48.0). The protection rate offered by double gloving in orthognathic surgery was 95.2%. These results suggest that, regardless of the surgical duration and blood loss in all fields of surgery, orthognathic surgery must be categorized in the highest risk group for glove perforation, following gynaecological and open lung surgery, due to the involvement of sharp objects. Copyright © 2012 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  12. Negative Pressure Wound Therapy in Maxillofacial Applications

    Directory of Open Access Journals (Sweden)

    Adam J. Mellott

    2016-09-01

    Full Text Available Negative pressure wound therapy has greatly advanced the field of wound healing for nearly two decades, by providing a robust surgical adjunct technique for accelerating wound closure in acute and chronic wounds. However, the application of negative pressure wound therapy in maxillofacial applications has been relatively under utilized as a result of the physical articulations and contours of the head and neck that make it challenging to obtain an airtight seal for different negative pressure wound therapy systems. Adapting negative pressure wound therapies for maxillofacial applications could yield significant enhancement of wound closure in maxillofacial applications. The current review summarizes the basic science underlying negative pressure wound therapy, as well as specific maxillofacial procedures that could benefit from negative pressure wound therapy.

  13. Smartphone photography in oral and maxillofacial surgery.

    Science.gov (United States)

    Jamil, F

    2016-01-01

    An increasing number of staff in oral and maxillofacial surgery (OMFS) departments take clinical photographs with their personal phones. We report the results of a survey on the use of smartphone photography in OMFS departments in the United Kingdom, and highlight the guidelines that govern their use and the associated ethical and medicolegal implications. Copyright © 2015 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  14. Herida por asta de toro en el área maxilofacial: revisión de la literatura y presentación de un caso Maxillofacial injury by bull goring: literature review and case report

    Directory of Open Access Journals (Sweden)

    J.L. Crespo Escudero

    2008-10-01

    of the mechanism of injury. The patient should be taken as rapidly as possible to a hospital. Authors generally agree that any patient who has been gored by a bull must be considered initially, for purposes of management, as a patient with multiple injuries. Conclusion. Facial injuries caused by bull goring have no equivalent with other etiologies of trauma in the craniofacial region and surgeons must be aware of their distinctive characteristics. The wounds are serious due to the danger of airway obstruction and hemorrhagic shock, but the prognosis is favorable. The successful management and treatment of patients with this type of injury is based on rapid identification of the wounds in order to execute the correct surgical intervention as soon as possible after the accident occurs.

  15. Panagraphic study of maxillofacial region

    Energy Technology Data Exchange (ETDEWEB)

    You, Dong Soo [School of Dentistry, Seoul National University, Seoul (Korea, Republic of)

    1973-11-15

    The author has studied maxillo-facial anatomical landmarks using Status X with two methods. The one has performed by application of contrast media on the human dry skull, the other has performed on living human skull as control group. Comparing the panagraphs taken by two methods, the author has drawn following results: 1. The panagraphs revealed the undistorted highly sharp panoramic shadows of each jaw on a film. 2. Diminishing the inserted anode tube to 4 cm (focal incisor distance 3 cm), overlapping-free representation of the in terdental spaces of the premolars and anterior teeth was taken. 3. Alternating the head position of the objects, direction of anode tube and film placing, the shadows of temporomandibular joint and zygomatic arch were taken without overlapping the other bone tissues. 4. In the panagraphs applied various shaped contrast media to each anatomical landmark, a radio-anatomical atlas which is necessary to interpret various bone tissues was taken. 5. In order to interpret panagraphic shadows easily, the author has tried this study by comparing the films of the living human skull with the films of the human dry skull applied contrast media.

  16. Panagraphic study of maxillofacial region

    International Nuclear Information System (INIS)

    You, Dong Soo

    1973-01-01

    The author has studied maxillo-facial anatomical landmarks using Status X with two methods. The one has performed by application of contrast media on the human dry skull, the other has performed on living human skull as control group. Comparing the panagraphs taken by two methods, the author has drawn following results: 1. The panagraphs revealed the undistorted highly sharp panoramic shadows of each jaw on a film. 2. Diminishing the inserted anode tube to 4 cm (focal incisor distance 3 cm), overlapping-free representation of the in terdental spaces of the premolars and anterior teeth was taken. 3. Alternating the head position of the objects, direction of anode tube and film placing, the shadows of temporomandibular joint and zygomatic arch were taken without overlapping the other bone tissues. 4. In the panagraphs applied various shaped contrast media to each anatomical landmark, a radio-anatomical atlas which is necessary to interpret various bone tissues was taken. 5. In order to interpret panagraphic shadows easily, the author has tried this study by comparing the films of the living human skull with the films of the human dry skull applied contrast media.

  17. Neurofibromatosis of the Maxillofacial Region

    International Nuclear Information System (INIS)

    AlRuhaimi, Khalid A.; Sailer, Hermann F.

    1989-01-01

    In this study seventeen patients with neurofibromatosis in the maxillofacial region were presented. There was no great difference in the incidence of the disease between males and females. The patient age range was 1 to 75 years with a mean age of 21.5 years. Family history was positive in 5 cases. The spectrum of the clinical manifestations of this disease, known for its protean characteristics, were evident in all of our 17 patients. 14 (82.4%) patients had cafeau-lait spots; 3 (1 7.6%) had multiple cutaneous nodules; malignant transformation was documented in only one case (5.9%). Psychologic depression was recorded in 2 (11.8%) ceases, and one(5.9%) case had grand-mal epilepsy. A rare location of neurofibromatous nodules, i.e. in eye (iris nodules), was reported in only one (5.9%) case. The most frequently performed procedure in our cases was excision of the tumor mass which was, in most instances, incomplete. However, massive bleeding during surgical intervention was prominent in four cases and was overcome with extensive packing removed after approximately two weeks. An interesting finding in this study was the incidence of radiologic findings which was higher (76.4%) than previously reported. All cases of this study were unilateral and involvement of the mandible (65%) was more than that of the maxillae. (author)

  18. Maxillofacial fractures: twenty years of study in the department of maxillofacial surgery in kosovo.

    Science.gov (United States)

    Loxha, Mergime Prekazi; Sejfija, Osman; Salihu, Sami; Gjinolli, Fellanza; Agani, Zana; Hamiti, Vjosa; Rexhepi, Aida Namani; Gecaj-Gashi, Agreta

    2013-01-01

    The aim of this study was to analyze maxillofacial region fractures during the past 20 years in the Department of Maxillofacial Surgery in Prishtina. We have analyzed the histories of all patients with trauma who were hospitalized in the Department of Maxillofacial Surgery in Prishtina since the opening of the clinic in 1983 through 2005. Narrowing the subject of our research, we concentrated on fractures of the maxillofacial region treated at the Clinic of Maxillofacial Surgery for the period 2001-2005. We have analyzed those fractures and compared them with the period from 1983 to 2005 only when it was reasonable. During this period, 1,945 patients were treated for trauma in the maxillofacial region by the Department of Maxillofacial Surgery. This group included 19.8% females and 80.2% males. The largest age group were those between 20 and 20 years of age. Causes of trauma for both periods were predominantly traffic accidents; however, during the period 2001-2005, interpersonal conflicts were increasingly the cause of fractures. Interpersonal conflict as a cause of maxillofacial trauma has risen in recent years. With this increase the methods of treating fractures in this region are also changing.

  19. Pattern of Maxillofacial fracture in Western and Central Nepal: An experience in 3 tertiary level health institutions

    Directory of Open Access Journals (Sweden)

    S Subedi

    2015-06-01

    Full Text Available BACKGROUND: There are only few studies regarding the pattern and causes of maxillofacial fractures till date in Nepal and no such study in western and central Nepalese population has been conducted. The purpose of this study, therefore, was to describe the causes and the pattern of maxillofacial fractures in western and central part of Nepal over the period of 5 years. MATERIAL AND METHODS A retrospective analysis of maxillofacial fractures was conducted on 328 patients who were treated in the department of maxillofacial surgery. Data was extracted and analyzed based on age, sex, cause of injury and anatomic location. RESULT Young males of 3rd decade of life most commonly sustained the maxillofacial trauma. The commonest site involved was the zygomatic complex (42% when only mid face fractures was considered and parasymphysis (32% when only mandible was considered.The most common cause of injuries was road traffic accidents (289 patients; 88.1% followed by interpersonal violence (25 patients; 7.6 % and falls accounting for 4.2% of the all injuries. CONCLUSION The findings of this study suggest the need for expansion of the motorway network, ensuring compliance of strict traffic rules and regulations, replacing old vehicles without safety measures and implement school education in alcohol abuse.DOI: http://dx.doi.org/10.3126/jcmsn.v10i3.12771 Journal of College of Medical Sciences-Nepal, 2014, Vol-10, No-3, 8-13

  20. Basic research on maxillofacial implants

    Energy Technology Data Exchange (ETDEWEB)

    Matsui, Yoshiro [Showa Univ., Tokyo (Japan). School of Dentistry

    2001-11-01

    Osseointegrated implants have begun to be used not only in general practice in dentistry but also in various clinical situations in the maxillofacial region. The process has yielded three problems: the spread of application, new materials and diagnostic methods, and management for difficult situations. This paper presents basic data and clinical guidelines for new applications, it investigates the characteristics of the materials and the usefulness of a new diagnostic method, and it studies effective techniques for difficult cases. The results obtained are as follows: Investigations into the spreading application. The lateral and superior orbital rim have sufficient bone thickness and width for the implant body to be placed. Osseointegrated implants, especially by the fixed bridge technique, are not recommended in the craniofacial bone and jaws of young children. Implant placement into bone after/before irradiation must be performed in consideration of impaired osteogenesis, the decrease of trabecular bone, and the time interval between implantation and irradiation. Investigations into materials and diagnostic methods. Hydroxyapatite-coated and titanium implants should be selected according to the characteristics of the materials. A dental simulating soft may also be applicable in the craniofacial region. Investigations into the management of difficult cases. Hyperbaric oxygen therapy (HBO), bone morphogenetic protein (BMP), and tissue engineering should be useful for improving the quality and increasing the quantity of bone where implants are placed. Soft tissue around implants placed in the reconstructed area should be replaced with mucosal tissue. The data obtained here should be useful for increasing the efficiency of osseointegrated implants, but further basic research is required in the future. (author)

  1. Basic research on maxillofacial implants

    International Nuclear Information System (INIS)

    Matsui, Yoshiro

    2001-01-01

    Osseointegrated implants have begun to be used not only in general practice in dentistry but also in various clinical situations in the maxillofacial region. The process has yielded three problems: the spread of application, new materials and diagnostic methods, and management for difficult situations. This paper presents basic data and clinical guidelines for new applications, it investigates the characteristics of the materials and the usefulness of a new diagnostic method, and it studies effective techniques for difficult cases. The results obtained are as follows: Investigations into the spreading application. The lateral and superior orbital rim have sufficient bone thickness and width for the implant body to be placed. Osseointegrated implants, especially by the fixed bridge technique, are not recommended in the craniofacial bone and jaws of young children. Implant placement into bone after/before irradiation must be performed in consideration of impaired osteogenesis, the decrease of trabecular bone, and the time interval between implantation and irradiation. Investigations into materials and diagnostic methods. Hydroxyapatite-coated and titanium implants should be selected according to the characteristics of the materials. A dental simulating soft may also be applicable in the craniofacial region. Investigations into the management of difficult cases. Hyperbaric oxygen therapy (HBO), bone morphogenetic protein (BMP), and tissue engineering should be useful for improving the quality and increasing the quantity of bone where implants are placed. Soft tissue around implants placed in the reconstructed area should be replaced with mucosal tissue. The data obtained here should be useful for increasing the efficiency of osseointegrated implants, but further basic research is required in the future. (author)

  2. Regenerative nanotechnology in oral and maxillofacial surgery.

    Science.gov (United States)

    Shakib, Kaveh; Tan, Aaron; Soskic, Vukic; Seifalian, Alexander M

    2014-12-01

    Regenerative nanotechnology is at the forefront of medical research, and translational medicine is a challenge to both scientists and clinicians. Although there has been an exponential rise in the volume of research generated about it for both medical and surgical uses, key questions remain about its actual benefits. Nevertheless, some people think that therapeutics based on its principles may form the core of applied research for the future. Here we give an account of its current use in oral and maxillofacial surgery, and implications and challenges for the future. Copyright © 2014 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  3. Obtaining consent to oral and maxillofacial surgery.

    Science.gov (United States)

    Poswillo, D

    1989-09-01

    The question of whether or not a patient has consented to treatment has recently become significant to all who practise oral and maxillofacial surgery. It is often linked to professional negligence when the outcome differs from the patient's perception or expectation of the operation. Consent may be oral or written, applies to referred patients and all those with physical and mental handicap and religious restrictions. Examples of procedure in discussing consent assist the surgeon to inform without creating fear. Knowledge of the benefits of informed consent and current legal opinion assist the oral and maxillofacial surgeon to avoid the pitfalls of failure to inform.

  4. Patient satisfaction with maxillofacial prosthesis. Literature review.

    Science.gov (United States)

    Goiato, Marcelo Coelho; Pesqueira, Aldiéris Alves; Ramos da Silva, Cristina; Gennari Filho, Humberto; Micheline Dos Santos, Daniela

    2009-02-01

    Obturators and facial prostheses are important not only in rehabilitation and aesthetics, but also in patient re-socialisation. The level of reintegration is directly related to the degree of satisfaction with rehabilitation. So, the maxillofacial prosthetics must provide patient satisfaction during treatment. This study aimed to search information in database and conduct a literature review on patient satisfaction with maxillofacial prosthesis. The problems experienced by these patients may decrease when specialists keep the patient on regular inspection. Rehabilitation through alloplasty or prosthetic restoration provides satisfactory conditions in aesthetics and well-being and reinstates individuals in familial and social environment.

  5. Addressing Gender Discrimination in Oral and Maxillofacial Surgery via the Social Norms Approach.

    Science.gov (United States)

    Uppgaard, Rachel

    2018-03-28

    Gender discrimination continues to be a challenge faced by women in oral and maxillofacial surgery. The discrimination itself is perpetrated by a small number of individuals, but it is lack of support and intervention by other surgeons that allows this to continue. The social norms approach is one means to break this cycle: first by identifying misperceptions and then by encouraging individuals to intervene instead of remaining bystanders. To move forward as a specialty, we must actively intervene when discrimination and harassment occur. Copyright © 2018 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  6. Percutaneous self-injury to the femoral region caused by bur breakage during surgical extraction of a patient's impacted third molar.

    Science.gov (United States)

    Yu, Tae Hoon; Lee, Jun; Kim, Bong Chul

    2015-10-01

    Extraction of an impacted third molar is one of the most frequently performed techniques in oral and maxillofacial surgery. Surgeons can suffer numerous external injuries while extracting a tooth, with percutaneous injuries to the hand being the most commonly reported. In this article, we present a case involving a percutaneous injury of the surgeon's femoral region caused by breakage of the fissure bur connected to the handpiece during extraction of the third molar. We also propose precautions to prevent such injuries and steps to be undertaken when they occur.

  7. Oral and cranio-maxillofacial surgery in Byzantium.

    Science.gov (United States)

    Mylonas, Anastassios I; Poulakou-Rebelakou, Eleftheria-Fotini; Androutsos, Georgios I; Seggas, Ioannis; Skouteris, Christos A; Papadopoulou, Evangelia Chr

    2014-03-01

    Byzantine physicians (4th-7th and 8th-12th centuries A.D.), especially those interested in Surgery, developed a number of interesting concepts, views and opinions referring to the field now recognized as Oral and Cranio-maxillofacial Surgery and Pathology. The original texts of Byzantine physicians, written in ancient Greek, and now preserved in the electronic platform Thesaurus Linguae Graecae, at the University of California, Irvine, CA, USA, were investigated in relation to Oral and Cranio-maxillofacial Surgery and Pathology. The most eminent physicians of the Early (4th-7th century A.D.) and Middle (8th-12th century A.D.) Byzantine Period, in particular Oribasius Pergamenus, Aëtius Amidenus, Alexander Trallianus, Theophilus Protospatharius, Paulus Aegineta, Meletius Monachos, and Leo Medicus, in their works deal with topographic and surgical anatomy of the head and neck, and a large list of related topics, including dentoalveolar surgery, oral and cervicofacial infections, trauma of viscerocranium and neurocranium as well as the biomechanics of traumatic brain injuries, temporomandibular joints dysfunction as a consequence of mandibular dislocation, surgical oncology and reconstructive surgery of the head and neck, oral pathology, surgical pathology of salivary glands, therapeutic management of facial nerve dysfunction, preprosthetic surgery, craniofacial surgery, and deformities of the facial skeleton involving anthropologic and craniometric observations. Clinical examination of patients presenting corresponding functional and esthetic problems is considered, using recognizable orthodontic and orthognathic surgical approaches. Finally, specific bandages of the head and neck are described, for treating traumatic injuries of the viscerocranium and neurocranium, diastasis of the cranial sutures, dislocations of the mandible (unilateral and bilateral), as well as inflammatory diseases of the parotids and the neck. Byzantine physicians had been particularly

  8. Piezosurgery in oral and maxillofacial surgery

    Czech Academy of Sciences Publication Activity Database

    Pavlíková, G.; Foltán, R.; Horká, M.; Hanzelka, T.; Borunská, H.; Šedý, Jiří

    2011-01-01

    Roč. 40, č. 5 (2011), s. 451-457 ISSN 0901-5027 Institutional research plan: CEZ:AV0Z50390703 Keywords : piezosurgery * oral surgery * maxillofacial surgery Subject RIV: FJ - Surgery incl. Transplants; FH - Neurology (UEM-P) Impact factor: 1.506, year: 2011

  9. Maxillofacial fractures among patients attended at Muhimbili ...

    African Journals Online (AJOL)

    Objective: To determine the pattern of occurrence, types, and treatment and prognosis of patients with maxillofacial fractures at the dental school of the Muhimbili University College of Health SciencesNational Hospital, Dar es Salaam, Tanzania. Methodology: ... comprised of 25 (accounting for 21.3%) of the cases (p<0.001).

  10. Analysis of the pattern of maxillofacial fractures in north western of Iran: A retrospective study

    Directory of Open Access Journals (Sweden)

    Mesgarzadeh Ali

    2011-01-01

    Full Text Available Background : Maxillofacial fractures can lead to substantial long-term functional, esthetic and psychological complications. Aim : The aim of this study is to evaluate these injuries in a Turkish Iranian population. Materials and Methods : A retrospective study of 170 patients with 210 maxillofacial fractures admitted to the emergency department of a central referral emergency hospital in the area over a 5 year period is presented. Patients′ data included demographic information, etiology, site and associated injuries and complications. Results : Road traffic accident was the commonest cause (40% and the age group of 21-30 comprised the biggest group (30%. Mandibular fractures outnumbered midface fractures (150vs.60. Ramus (21.5% and zygoma (26.5% were the commonest fracture regions respectively in mandible and midface. Male: female ratio was 3.8:1 Almost half of patients (46% had sustained associated injuries most of which was soft tissue laceration of the face (17.5%. 22 patient (13% had associated complication and the hemorrhage was the commonest form of that (9%. Conclusion : It seems that road traffic accidents continue to be the leading cause of maxillofacial fractures and there is an urgent need to implement enhanced regulations and monitoring on motor vehicular traffic.

  11. Burnout syndrome in oral and maxillofacial surgeons: a critical analysis.

    Science.gov (United States)

    Porto, G G; Carneiro, S C; Vasconcelos, B C; Nascimento, M M; Leal, J L F

    2014-07-01

    The aim of this study was to determine the prevalence of burnout syndrome among Brazilian oral and maxillofacial surgeons and its relationship with socio-demographic, clinical, and habit variables. The sample of this study comprised 116 surgeons. The syndrome was quantified using the Maslach Burnout Inventory (General Survey), which defines burnout as the triad of high emotional exhaustion, high depersonalization, and low personal accomplishment. The criteria of Grunfeld et al. were used to evaluate the presence of the syndrome (17.2%). No significant differences between the surgeons diagnosed with and without the syndrome were observed according to age (P=0.804), sex (P=0.197), marital status (P=0.238), number of children (P=0.336), years of professional experience (P=0.102), patients attended per day (P=0.735), hours worked per week (P=0.350), use of alcohol (P=0.148), sports practice (P=0.243), hobbies (P=0.161), or vacation period per year (P=0.215). Significant differences occurred in the variables sex in the emotional exhaustion subscale (P=0.002) and use or not of alcohol in the personal accomplishment subscale (P=0.035). Burnout syndrome among Brazilian surgeons is average, showing a low personal accomplishment. Copyright © 2014 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  12. Airway management in patients with maxillofacial trauma - A retrospective study of 177 cases

    Directory of Open Access Journals (Sweden)

    Chetan B Raval

    2011-01-01

    Full Text Available Background: Airway management in maxillofacial injuries presents with a unique set of problems. Compromised airway is still a challenge to the anesthesiologist in spite of all modalities available. Maxillofacial injuries are the result of high-velocity trauma arising from road traffic accidents, sport injuries, falls and gunshot wounds. Any flaw in airway management may lead to grave morbidity and mortality in prehospital or hospital settings and as well as for reconstruction of fractures subsequently. Methods: One hundred and seventy-seven patients of maxillofacial injuries, operated over a period of one and half years during July 2008 to December 2009 in Al-Nahdha hospital were reviewed. All patients were reviewed in depth with age related type of injury, etiology and techniques of difficult airway management. Results: The major etiology of injuries were road traffic accidents (67% followed by sport (15% and fall (15%. Majority of patients were young in the age group of 11-30 years (71 %. Fracture mandible (53% was the most common injury, followed by fracture maxilla (21%, fracture zygoma (19% and pan-facial fractures (6%. Maxillofacial injuries compromise mask ventilation and difficult airway due to facial fractures, tissue edema and deranged anatomy. Shared airway with the surgeon needs special attention due to restrictions imposed during surgery. Several methods available for securing the airway, both decision-making and performance, are important in such circumstances. Airway secured by nasal intubation with direct visualization of vocal cords was the most common (57%, followed by oral intubation (17%. Other methods like tracheostomy and blind nasal intubation was avoided by fiberoptic bronchoscopic nasal intubation in 26% of patients. Conclusion: The results of this study indicated that surgically securing the airway by tracheostomy should be revised compared to other available methods. In the era of rigid fixation of fractures and the

  13. KNOWLEDGE GAPS IN ORAL AND MAXILLOFACIAL SURGERY

    DEFF Research Database (Denmark)

    Österberg, Marie; Holmlund, Anders; Sunzel, Bo

    2017-01-01

    OBJECTIVES: The aim of this study was to evaluate available knowledge and identify knowledge gaps within the field of oral and maxillofacial surgery, by systematically collecting and evaluating systematic reviews. Twelve specific domains were selected: surgical removal of teeth, antibiotic....... However, in all domains, the search revealed a large number of knowledge gaps. Also of concern was the lack of data regarding health economics and ethics. CONCLUSIONS: In conclusion, there is a need for well-conducted clinical research in the fields of oral and maxillofacial surgery........ RESULTS: In all, 1,778 abstracts were identified, of which 200 met the inclusion criteria. Forty-five systematic reviews were assessed as of high to moderate quality. The results disclosed some existing evidence in a few domains, such as surgical removal of teeth and implant survival after sinus lifts...

  14. The Temporalis Muscle Flap in Maxillofacial Reconstruction

    International Nuclear Information System (INIS)

    ElSheikh, M; Zeitoun, I; ElMassry, M A K

    1991-01-01

    The temporalis muscle flap is a very versatile and valuable axial flap, which could be used in various reconstructive procedures in and around the oro-maxillofacial region. The surgical anatomy, vascular pattern and technique of elevation of the flap are described, together with our experience in different reconstructive situations. The advantages and disadvantages of the use of this flap are thoroughly discussed taking into consideration the potentiality of cancer recurrence under cover of the flap. (author)

  15. Drought occurence

    Science.gov (United States)

    John W. Coulston

    2007-01-01

    Why Is Drought Important? Drought is an important forest disturbance that occurs regularly in the Western United States and irregularly in the Eastern United States (Dale and others 2001). Moderate drought stress tends to slow plant growth while severedrought stress can also reduce photosynthesis (Kareiva and others 1993). Drought can also interact with...

  16. [Multidisciplinary approach of facial injuries

    NARCIS (Netherlands)

    Dubois, L.; Schreurs, R.; Lapid, O.; Saeed, P.; Adriaensen, G.F.; Hoefnagels, F.M.; Jong, V.M. de

    2017-01-01

    BACKGROUND: Approximately one quarter of polytrauma patients has facial injuries, which usually lead to loss of form and function. Several specialties are involved in the acute and reconstructive phases of facial injuries, such as oral and maxillofacial surgery, otorhinolaryngology, plastic surgery,

  17. The most-cited articles in dental, oral, and maxillofacial traumatology during 64 years.

    Science.gov (United States)

    Jafarzadeh, Hamid; Sarraf Shirazi, Alireza; Andersson, Lars

    2015-10-01

    Citation analysis helps to identify the research trends within a research field and helps to identify the most frequently occurring parameters. The aim of this study was to identify the 100 most-cited articles in the field of dental, oral, and maxillofacial traumatology over the past 64 years. A comprehensive list of the most-cited articles in dental, oral, and maxillofacial trauma was compiled using 'All Databases' section of the ISI Web of Knowledge. Related articles were considered to be those articles in which part or all of the experiment or study was related to dental and/or oral and maxillofacial trauma. In case reports, if a part of a treatment plan was related to the topic, that article was considered to be relevant. The characteristics analyzed included number of citations, authors, journals, institution, country of origin, publication year, article type, study material, and topic. The number of citations for each article ranged from 69 to 229. The journal Dental Traumatology was the most represented, followed by the journal Oral and Maxillofacial Surgery. Of the 100 articles, 83% were original articles, 15% were review articles, and 2% were case report/case series. Therapy and prognosis-related topics were the most common topics. Most articles came from institutions in the United States, followed by the Scandinavian countries. University Hospital of Copenhagen was the source of the highest number (34) of the most-cited articles; the same author wrote or co-wrote 22 of the 100 most-cited articles. The list of most-cited articles in the field of dental, oral, and maxillofacial traumatology gives a good scientometric picture of trauma research in the world. A large number of the most-cited articles are mainly from the field of dental traumatology and originate from a few research teams. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  18. Nonsyndromic Synchronous Multifocal Central Giant Cell Granulomas of the Maxillofacial Region: Report of a Case.

    Directory of Open Access Journals (Sweden)

    Anita Munde

    2015-04-01

    Full Text Available Central giant cell granuloma (CGCG is a benign proliferation of fibroblasts and multinucleated giant cells that almost exclusively occurs in the jaws. It commonly occurs in young adults showing a female predilection in the anterior mandible. Multifocal CGCGs in maxillofacial region are very rare and suggestive of systemic diseases such as hyperparathyroidism, an inherited syndrome such as Noonan-like multiple giant cell lesion syndrome or other disorders. Only 10 cases of multifocal CGCGs in the maxillofacial region without any concomitant systemic disease have been reported in the English literature. Here, we report an unusual case of 36 year-old female presented with non-syndromic synchronous, multifocal CGCGs in the left posterior mandible and left posterior maxilla without any concomitant systemic disease. Relevant literature is reviewed and the incidence, clinical features, radiological features, differential diagnosis and management of CGCGs are discussed.

  19. [3D planning in maxillofacial surgery].

    Science.gov (United States)

    Hoarau, R; Zweifel, D; Lanthemann, E; Zrounba, H; Broome, M

    2014-10-01

    The development of new technologies such as three-dimensional (3D) planning has changed the everyday practice in maxillofacial surgery. Rapid prototyping associated with the 3D planning has also enabled the creation of patient specific surgical tools, such as cutting guides. As with all new technologies, uses, practicalities, cost effectiveness and especially benefits for the patients have to be carefully evaluated. In this paper, several examples of 3D planning that have been used in our institution are presented. The advantages such as the accuracy of the reconstructive surgery and decreased operating time, as well as the difficulties have also been addressed.

  20. [Modern technologies in cranio-maxillofacial surgery].

    Science.gov (United States)

    Lübbers, Heinz-Theo; Matthews, Felix; Kruse, Astrid L

    2014-02-26

    Modern technologies are influencing medicine everyday. The oral and maxillofacial surgery meet the worlds from medicine and dentistry. So technologies from both fields are utilized. This article provides an overview about technologies in clinical use, which are typical for the specialty. Their principles and indications are described as well as benefits and limitations. Based on Cone Beam Computed Tomography image fusion and mirroring techniques are explained as well as patient specific models and implants, template guided and free surgical navigation with and without intraoperative three-dimensional imaging. An overall assessment reveals further need of research regarding indications and patient benefit.

  1. Oral and Maxillofacial Surgery: Why the double degree? | Oji ...

    African Journals Online (AJOL)

    The International Association of oral and maxillofacial Surgeons (IAOMS) is committed to quality patient care. The education of oral and maxillofacial surgeons has, however, been in constant evolution ever since the inception of this speciality; and this state of flux reflects the dynamic expansion of its scope. Oral surgery has ...

  2. Multiple maxillofacial fractures in a patient undergoing orthodontic ...

    African Journals Online (AJOL)

    A multi-disciplinary team approach for the management of maxillofacial fractures in patients undergoing orthodontic treatment with fixed appliances is suggested. Orthodontic treatment with surgical involvement has been found to improve both facial aesthetics and occlusal function. Key words: Maxillofacial, trauma, ...

  3. Surgeon Reimbursements in Maxillofacial Trauma Surgery: Effect of the Affordable Care Act in Ohio.

    Science.gov (United States)

    Khansa, Ibrahim; Khansa, Lara; Pearson, Gregory D

    2016-02-01

    Surgical treatment of maxillofacial injuries has historically been associated with low reimbursements, mainly because of the high proportion of uninsured patients. The Affordable Care Act, implemented in January of 2014, aimed to reduce the number of uninsured. If the Affordable Care Act achieves this goal, surgeons may benefit from improved reimbursement rates. The authors' purpose was to evaluate the effects of the Affordable Care Act on payor distribution and surgeon reimbursements for maxillofacial trauma surgery at their institution. A review of all patients undergoing surgery for maxillofacial trauma between January of 2012 and December of 2014 was conducted. Insurance status, and amounts billed and collected by the surgeon, were recorded. Patients treated before implementation of the Affordable Care Act were compared to those treated after. Five hundred twenty-three patients were analyzed. Three hundred thirty-four underwent surgery before implementation of the Affordable Care Act, and 189 patients underwent surgery after. After implementation of the Affordable Care Act, the proportion of uninsured decreased (27.2 percent to 11.1 percent; p reimbursement rate increased from 14.3 percent to 19.8 percent (p reimbursement rate increased. These trends should be followed over a longer term to determine the full effect of the Affordable Care Act.

  4. Dracunculiasis in oral and maxillofacial surgery.

    Science.gov (United States)

    Kim, Soung Min

    2016-04-01

    Dracunculiasis, otherwise known as guinea worm disease (GWD), is caused by infection with the nematode Dracunculus medinensis. This nematode is transmitted to humans exclusively via contaminated drinking water. The transmitting vectors are Cyclops copepods (water fleas), which are tiny free-swimming crustaceans usually found abundantly in freshwater ponds. Humans can acquire GWD by drinking water that contains vectors infected with guinea worm larvae. This disease is prevalent in some of the most deprived areas of the world, and no vaccine or medicine is currently available. International efforts to eradicate dracunculiasis began in the early 1980s. Most dentists and maxillofacial surgeons have neglected this kind of parasite infection. However, when performing charitable work in developing countries near the tropic lines or other regions where GWD is endemic, it is important to consider GWD in cases of swelling or tumors of unknown origin. This paper reviews the pathogenesis, epidemiology, clinical criteria, diagnostic criteria, treatment, and prevention of dracunculiasis. It also summarizes important factors for maxillofacial surgeons to consider.

  5. MAXILLOFACIAL TRAUMA MANAGEMENT IN POLYTRAUMATIZED PATIENTS – THE USE OF ADVANCED TRAUMA LIFE SUPPORT (ATLS PRINCIPLES.

    Directory of Open Access Journals (Sweden)

    Elitsa G. Deliverska

    2013-03-01

    Full Text Available Management of the multiply injured patient requires a co-ordinated multi-disciplinary approach in order to optimise patients’ outcome. A working knowledge of the sort of problems these patients encounter is therefore vital to ensure that life-threatening injuries are recognised and treated in a timely pattern and that more minor associated injuries are not omitted. This article outlines the management of polytraumatized patients using the Advanced Trauma Life Support (ATLS principles and highlights the areas of specific involvement of the engaged medical team. Advanced Trauma Life Support is generally regarded as the gold standard and is founded on a number of well known principles, but strict adherence to protocols may have its drawbacks when facial trauma co-exists. These can arise in the presence of either major or minor facial injuries, and oral and maxillofacial surgeons need to be aware of the potential problems.

  6. Observation and nursing of complications due to high re-perfusion injury occurring after balloon angioplasty for diabetic vascular diseases of lower extremity

    International Nuclear Information System (INIS)

    Zhang Lingling; Zhu Yueqi; Mou Ling

    2011-01-01

    Objective: To evaluate the symptomatic nursing in treating the complications caused by high re-perfusion which develops after balloon angioplasty for the treatment of diabetic vascular diseases of lower extremity. Methods: Eighteen patients with lower limb ischemia caused by diabetes mellitus developed high re-perfusion injury complications after receiving balloon angioplasty. The patients were randomly and equally divided into study group and control group. The special nursing measures designed by the author's department, including raising the diseased lower limb, enforcing the flexion and extension movement of the leg, cold compress, wound exposure, etc. were carried out for patients of study group, while no special nursing measures were adopted for patients of control group. The clinical results, such as limb pain, swelling and subcutaneous petechia after re-perfusion injury, were evaluated and compared between two groups. Results: After the treatment, the limb pain, swelling and subcutaneous petechia due to high re-perfusion injury in study group were relieved more markedly than that in control group, the difference in evaluation score between two groups was statistically significant (P<0.01). Conclusion: The special symptomatic nursing measures are very effective in relieving the high re-perfusion injury after balloon angioplasty for the treatment of diabetic lower limb ischemia. (authors)

  7. Airway status in civilian maxillofacial gunshot Injuries in ...

    African Journals Online (AJOL)

    The airway was threatened in 20/92 cases at admission; 12/20 cases were treated with oro-or nasotracheal intubation, and 9/12 later had elective tracheostomies; 8/20 needed immediate surgical airways, 5 tracheostomies and 3 cricothyroidotomies (all later converted to tracheostomies). Three of thirty-seven patients with ...

  8. Airway Management Dilemma in a Patient with Maxillofacial Injury ...

    African Journals Online (AJOL)

    He had tracheostomy and repair of the laceration under general anaesthesia. Anaesthesia was induced with intravenous ketamine with the patient in the left lateral position while traction on the tongue using a Magill's forceps ensured patency of the airway. A classical laryngeal mask airway was subsequently inserted to ...

  9. Maxillofacial injury: A retrospective analysis of time lapse between ...

    African Journals Online (AJOL)

    2013-11-04

    Nov 4, 2013 ... Charlotte Maxeke Johannesburg Academic Hospital (CMJAH) in Johannesburg and Groote ... on a Microsoft Excel spreadsheet using a numerical code for ... A careful search of the published literature did not find any similar ...

  10. An insight into the future beckons of maxillofacial prosthodontics: Anaplastology

    Directory of Open Access Journals (Sweden)

    S Padmaja

    2015-01-01

    Full Text Available It is the god given right of every human being to appear human. Few areas of dentistry offer more challenges to the technical skills or greater satisfaction for the successful rehabilitation of function and esthetics in the patient with gross anatomic defects and deformities of the maxillofacial region. Although remarkable advances in the surgical management of oral and facial defects, but cannot be satisfactorily repaired by plastic surgery alone. Hence, the demand for maxillofacial prosthetic devices for the rehabilitation of patients with congenital or acquired defects has intensified in recent years. This paper gives an insight into the latest innovations and improvisations in the field of maxillofacial prosthodontics.

  11. E-cigarette Blast Injury: Complex Facial Fractures and Pneumocephalus

    Directory of Open Access Journals (Sweden)

    Benjamin Archambeau

    2016-11-01

    Full Text Available Electronic cigarettes (also known as e-cigarettes or e-cigs are becoming a popular method of recreational nicotine use over recent years. The growth of new brands and devices has been outpacing the FDA’s ability to regulate them. As a result, some of these devices fail without warning, most likely from malfunction of the lithium-ion batteries that are in close proximity to volatile compounds within the device. Failures have occurred during both use and storage of the devices or their components. The subsequent injuries from several of these events, including full thickness burns requiring grafting and blast injuries, have been observed at Arrowhead Regional Medical Center, a regional trauma and burn center in southern California. One severe case resulted in several maxillofacial fractures, blurred vision, and pneumocephalus after a device failed catastrophically during use. The patient required close monitoring with serial imaging by neurosurgery in the intensive care unit and multiple procedures by oral maxillofacial surgery to reconstruct his facial bones and soft tissue. Ultimately, the patient recovered with minimal permanent damage, but the potential for further injury or even death was apparent. Cases such as this one are becoming more frequent. It is important to increase awareness of this growing problem for both medical professionals and the general public in order to curb this concerning new trend.

  12. Clinical efficacy of computed tomography and coronectomy for prevention of postoperative inferior alveolar nerve injury occurring after impacted mandibular third molar surgery

    International Nuclear Information System (INIS)

    Hata, Tsuyoshi; Mandai, Toshiko; Ishida, Kohsei; Deguchi, Hiroyo; Hosoda, Masaru

    2012-01-01

    Our aim was to evaluate the clinical efficacy of computed tomography and coronectomy for preventing postoperative inferior alveolar nerve injury after impacted mandibular third molar surgery. Among the patients who visited Kawasaki Medical School Hospital between January 2009 and December 2010, 12 patients with high-risk signs of inferior alveolar nerve injury on panoramic imaging were examined for the extraction of impacted mandibular third molar by computed tomography (CT). CT examinations were performed in order to examine the relationship between the root apex of impacted mandibular third molar and inferior alveolar canal for 16 teeth. Based on the imaging findings, the patients were informed about treatment methods and their consent was obtained. We compared the CT and panoramic findings and discussed the relationship between the impacted third molar and the inferior alveolar nerve. Medical records were also examined for the presence of abnormal postoperative complications. Interruption of the cortical white line of the inferior alveolar canal was identified in 13 panoramic radiographs, and bending of the inferior alveolar canal was observed in 2 panoramic radiographs. CT findings indicated type 2 inferior alveolar nerve proximity in 13 teeth, and there was no proximity in 3 teeth. The observation was selected in 10 teeth showing nerve proximity in CT findings. Traditional third molar removal was performed for the 3 teeth with no nerve proximity. Coronectomy was performed in 3 teeth with nerve proximity. The clinical course was uneventful. To prevent inferior alveolar nerve injury, coronectomy may be a better means of removing the crown of an impacted third molar while leaving the roots intact, in cases where teeth might be in proximity with the inferior alveolar nerve. (author)

  13. Perspectives of stem cell use in reconstructive maxillofacial surgery

    Directory of Open Access Journals (Sweden)

    Mikhail G. Semyonov

    2016-12-01

    Full Text Available The discovery of stem cells is one of the greatest achievements of molecular and cell biology, and associated research has confirmed the possibility of self-renewal and differentiation into specialized tissue stem cells. The use of cellular technologies is an important trend in modern medicine. The aim of this article is to briefly review current findings on the use of stem cells in cardiology, endocrinology, neurology, traumatology, and maxillofacial surgery. All data were retrieved from experimental and clinical studies using various cell technologies. The material is part of ongoing maxillofacial surgery research to investigate the possible use of stem cells in reconstructive maxillofacial surgery for jaw bone pathologies in children. Present tissue engineering methods provide some opportunities for solving difficult clinical problems in oral and maxillofacial surgery. Despite some international achievements of effective application of IC in various diseases, clinical use in reconstructive surgery requires further investigation.

  14. [Epidemiology of maxillofacial fractures due to traffic accidents in Medellin (Colombia)].

    Science.gov (United States)

    Agudelo-Suárez, Andrés A; Duque-Serna, Francisco Levi; Restrepo-Molina, Lucas; Martínez-Herrera, Eliana

    2015-09-01

    To characterize maxillofacial fractures due to traffic accidents in patients attending the Hospital Universitario San Vicente Fundación (Medellin-Colombia) from 1998 to 2010. A descriptive study (n =1609) was carried out with information from the medical records of patients meeting the inclusion criteria established by the general objective of the study. The variables consisted of sex, age, year, type and number of fractures, and type of vehicle. A descriptive analysis of the variables was performed and the frequency of fractures due to traffic accidents was calculated according to year and sex. Crude and adjusted odds ratios (aOR) were estimated to establish associations among age, type of vehicle, and the presence of two or more fractures with stratification by sex. The frequency of maxillofacial fractures due to traffic accidents increased in 2007 (men: n=198, women: n=35) and decreased from 2008 to 2010 in both sexes. Fractures were more frequent in persons aged <35 years (80%) and in men (82%). The highest frequency of fractures was observed in motorists. Male users of motorcycles (aOR=1.41; confidence interval 95% [95%CI]: 1.02- 1.94) and bicycles (aOR=1.61; 95%CI: 1.01- 2.56) were more likely to report two or more fractures compared with pedestrians, after adjustment for other variables. Most maxillofacial fractures occurred in men and in motorists. Future studies should analyze other determinants affecting the epidemiology of maxillofacial fractures. Strategies should be designed to improve the use of protective elements and drivers' knowledge and practices. Copyright © 2014 SESPAS. Published by Elsevier Espana. All rights reserved.

  15. Oral and maxillofacial radiology: The challenge of change

    International Nuclear Information System (INIS)

    Omami, Galal

    2015-01-01

    Oral and maxillofacial radiologists may teach, practice, and/or conduct research with regard to any aspect of radiology. They are also responsible for establishing guidelines for radiographic selection criteria, radiation safety, and quality assurance. Some oral and maxillofacial radiologists have joint appointments in medical radiology. This provides a collaborative working environment with medical radiologists, who generally are not conversant with the diagnostic imaging of the jaws

  16. Relative Frequency of Maxillofacial Fracture in CT-Scan Radiographs in Shahid Sadoghi and Shahid Rahnemoun Emergency Departments in Yazd from 2007 Till 2010

    Directory of Open Access Journals (Sweden)

    Ezoddini Ardakan

    2012-02-01

    Full Text Available Introduction: Technologic improvement and increased production of car and motorcycle have led to the increased incidence of maxillofacial trauma all around the world. Injuries of maxillofacial region include fractures of mandible, maxilla, zygoma, orbit and nasal bone, which is due to different etiologic factors such as motor vehicle accidents, quarreling, fall, and sport-related and work- related accidents. The Purpose of this study was to evaluate the frequency of maxillofacial fracture in CT-scan radiographs in Shahid Sadoghi and Shahid Rahnemon emergency departments in Yazd from 2007 till 2010. Methods: In this retrospective study we assessed the medical files of all patients with maxillofacial traumawho were admitted at Shahid Sadoughi and Shahid Rahnemoun hospitals in ENT and surgery wards during a 4-year period. The information from patients' medical file and CT scan radiographs were recorded. At last 372 patients were evaluated. Results: In this study the age of patients showed to be between 20 and 29. Eighty six and fourteen percent of patients were males and females, respectively. Among all fractures, mandible fracture was the most frequent one (50.8%. The most frequent etiologic factor was accident (59% and the most frequent outcome was partial recovery (46.4% and death was observed in 0.8% of individuals. Conclusion: Results of this study showed that the most frequent etiologic factor of trauma to maxillofacial region is motor vehicle accident similar to other developing countries.

  17. Fresh frozen bone in oral and maxillofacial surgery

    Directory of Open Access Journals (Sweden)

    Luigi Fabrizio Rodella

    2015-06-01

    Full Text Available The aim of the current study was to review the use of fresh frozen bone (FFB in oral and maxillofacial surgery. We performed a review of the articles published in the literature between 1976 and May 2014 analyzing three medical databases (PubMed, Cochrane Library, and Embase and using specific search terms. Literature analysis on FFB applications in oral and maxillofacial surgery revealed 47 articles between 1976 and May 2014. There are 46 clinical articles and one review. Clinical articles are represented by 22 case reports and case series and 24 retrospective studies. Classifying the scientific production by year of publication, it is evident that especially during the last 6 years there was an increase of FFB graft use in oral and maxillofacial approaches. The literature analysis on FFB's use shows that its application in oral and maxillofacial surgery began slowly in 1992 with Perrott and since 2006 it had a real development. The recent significant increase emphasizes the importance of FFB for bone regeneration in oral and maxillofacial surgery. This review found consistent evidence of FFB's use increase in oral and maxillofacial surgery suggesting a valid instrument for bone regeneration. To date, risks connected to the infections' transmission and to the immunogenic potential are extremely low and could be considered practically absent. So, this is an important alternative in the preimplant reconstructive surgery.

  18. Osteo-odonto-keratoprosthesis - a maxillofacial perspective.

    Science.gov (United States)

    Narayanan, Vinod; Nirvikalpa, Natarajan; Rao, Srinivas K

    2012-12-01

    The OOKP (osteo-odonto-keratoprosthesis) is the treatment of choice for conditions like Stevens-Johnson syndrome, ocular cicatricial pemphigoid, trachoma, multiple failed grafts and chemical burns which are not amenable to penetrating keratoplasty. The OOKP is an autograft which replaces the cornea with a polymethacrylate cylinder mounted on a tooth-bone complex. The aim of this paper was to retrospectively analyze the records in 26 patients undergoing OOKP surgery between 2007 and 2011. The paper describes our experience with the procedure, with emphasis on its oral and maxillofacial aspects and management of associated complications. The aetiology of blindness in 23 patients was Stevens-Johnson's syndrome and chemical burns in three. Twenty-two patients had their maxillary canines, two had mandibular canines and two had maxillary first premolars as the choice of donor tooth. An oroantral fistula developed in four patients. One patient needed to undergo a surgical procedure for closure of the same. Roots of adjacent teeth were exposed in 12 patients. Twenty-four patients underwent both stages of the procedure with 19 being visually rehabilitated successfully. There was no improvement in the vision of four patients. One patient was lost to follow-up. Two patients have yet to undergo Stage 2. Copyright © 2012 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

  19. Management of oral and maxillofacial radiological images

    International Nuclear Information System (INIS)

    Kim, Eun Kyung

    2002-01-01

    To implement the database system of oral and maxillofacial radiological images using a commercial medical image management software with personally developed classification code. The image database was built using a slightly modified commercial medical image management software, Dr. Image v.2.1 (Bit Computer Co., Korea). The function of wild card '*' was added to the search function of this program. Diagnosis classification codes were written as the number at the first three digits, and radiographic technique classification codes as the alphabet right after the diagnosis code. 449 radiological films of 218 cases from January, 2000 to December, 2000, which had been specially stored for the demonstration and education at Dept. of OMF Radiology of Dankook University Dental Hospital, were scanned with each patient information. Cases could be efficiently accessed and analyzed by using the classification code. Search and statistics results were easily obtained according to sex, age, disease diagnosis and radiographic technique. Efficient image management was possible with this image database system. Application of this system to other departments or personal image management can be made possible by utilizing the appropriate classification code system.

  20. Computer-assisted oral and maxillofacial surgery

    International Nuclear Information System (INIS)

    Hassfeld, S.; Brief, J.; Muehling, J.; Krempien, R.; Mende, U.; Raczkowsky, J.; Muenchenberg, J.; Woern, H.; Giess, H.; Meinzer, H.P.

    2000-01-01

    Background: Methods from the area of virtual reality are used in oral and maxillofacial surgery for the planning and three-dimensional individual simulation of surgeries. Simulation: In order to simulate complex surgeries with the aid of a computer, the diagnostic image data and especially various imaging modalities (CT, MRT, US) must be arranged in relation to each other, thus enabling rapid switching between the various modalities as well as the viewing of mixed images. Segmenting techniques for the reconstruction of three-dimensional representations of soft-tissue and osseous areas are required. We must develop ergonomic and intuitively useable interaction methods for the surgeon, thus allowing for precise and fast entry of the planned surgical intervention in the planning and simulation phase. Surgery: During the surgical phase, instrument navigation tools offer the surgeon interactive support through operation guidance and control of potential dangers. This feature is already available today. Future intraoperative assistance will take the form of such passive tools for the support of intraoperative orientation as well as so-called tracking systems (semi-active systems) which accompany and support the surgeons' work. The final form are robots which execute specific steps completely autonomously. Discussion: The techniques of virtual reality keep gaining in importance for medical applications. Many applications are still being developed or are still in the form of a prototype. However, it is already clear that developments in this area will have a considerable effect on the surgeon's routine work. (orig.) [de

  1. Oral myiasis in a maxillofacial trauma patient

    Directory of Open Access Journals (Sweden)

    Grandim Balarama Gupta Vinit

    2013-01-01

    Full Text Available Myiasis is a rare disease primarily caused by the invasion of tissue by larvae of certain dipteran flies. Oral myiasis is still more "rare" and "unique" owing to the fact that oral cavity rarely provides the necessary habitat conducive for a larval lifecycle. Common predisposing factors are poor oral hygiene, halitosis, trauma, senility, learning disabilities, physically and mentally challenged conditions. Oral myiasis can lead to rapid tissue destruction and disfigurement and requires immediate treatment. Treatment consists of manual removal of maggots from the oral cavity after application of chemical agents. Good sanitation, personal and environmental hygiene and cleanliness and special care for debilitated persons are the best methods to prevent oral myiasis. This case report describes the presentation of oral myiasis caused by musca nebulo (common house fly in a 40-year-old male patient, with recent maxillofacial trauma. The patient was treated by manual removal larvae by topical application of turpentine oil, followed by surgical debridement of the wound and open reduction and internal fixation of the fracture.

  2. A retrospective study of children and adolescents oral and maxillofacial lesions over a 20-year period in Kerman, Iran

    Directory of Open Access Journals (Sweden)

    Molook Torabi-Parizi

    2017-08-01

    Full Text Available BACKGROUND AND AIM: Oral and maxillofacial lesions vary in different geographic regions based on their clinical features. Until now, few investigations have studied these lesions in children and adolescents in Iran. The aim of this research was to study the clinicopathological manifestations of biopsied oral and maxillofacial lesions among children and adolescents in the south of Iran. METHODS: In this retrospective cross-sectional study, all the cases referred to the Department of Pathology, Kerman faculty of Dentistry, and two treatment centers of Kerman University of Medical Sciences, Kerman, Iran during 1996-2015 were included. All demographic information including age, gender, anatomic location and histopathologic diagnosis of the oral and maxillofacial biopsies in patients under 18 years was extracted from patients’ chart fields. SPSS was used for the data analysis. RESULTS: Of 3196 oral and maxillofacial lesions, 326 cases (10.2% occurred in the age group under 18 years. The most common group was inflammatory/reactive lesions (36.8%. The most common lesions were pyogenic granuloma (9.20%, peripheral giant cell granuloma (8.89%, and dentigerous cyst (8.28%. Gingiva was the main involved area and the female to male ratio was 1.1 to 1. CONCLUSION: Our study revealed that almost 10.2% of oral and maxillofacial lesions occurred in children and adolescents. The majority of lesions were benign, and malignant lesions were rarely observed in the sample. The most prevalent biopsied lesions were inflammatory/reactive lesions. Unlike other studies, lower rates of mucocele were observed in this study. These findings can improve patient’s management among dentists and surgeons.

  3. COMPLICATIONS OF ORAL AND MAXILLOFACIAL SURGERY UNDER GENERAL ANESTHESIA IN TUBE-FED CHILDREN: A RETROSPECTIVE ANALYSIS.

    Science.gov (United States)

    Nguyen, Trang D; Freilich, Marshall M; Macpherson, Bruce A

    2016-06-01

    To assess morbidity and mortality associated with oral and maxillofacial surgery procedures requiring general anesthesia among children with aspiration tendency requiring enteral feeding. A retrospective chart review was conducted of children surgically treated under general anesthesia by the oral and maxillofacial surgery service at the Hospital for Sick Children in Toronto, Canada. Medical and dental records over a 9-year period (January 1, 2000 to January 1, 2010) were reviewed. Data were collected on demographics, primary illness, coexisting medical conditions, procedures performed, medications administered, type of airway management used, duration of general anesthesia, American Society of Anesthesiologists' physical status classification and adverse events. During the period reviewed, 28 children underwent 35 oral and maxillofacial surgery procedures under general anesthesia. The mean patient age was 12 years (range 4-17 years). No deaths occurred. Of the 35 surgeries, 10 (29%) were associated with at least 1adverse event. Adverse events included 1incident of respiratory distress, 2incidents of fever, 5incidents of bleeding, 1incident of seizure and 4incidents of oxygen saturation below 90% for more than 30s. Children with a history of aspiration tendency that necessitates enteral feeding, who undergo oral and maxillofacial surgery under general anesthesia, are at increased risk of morbidity. Before initiating treatment, the surgeon and parents or guardians of such children should carefully consider these risks compared with the anticipated benefit of surgery.

  4. Interactive learning in oral and maxillofacial radiology

    Energy Technology Data Exchange (ETDEWEB)

    Ramesh, Aruna; Ganguly, Rumpa [Dept. of Diagnostic Sciences, Div. of Oral and Maxillofacial Radiology, Tufts University School of Dental Medicine, Boston (United States)

    2016-09-15

    The use of electronic tools in teaching is growing rapidly in all fields, and there are many options to choose from. We present one such platform, Learning Catalytics (LC) (Pearson, New York, NY, USA), which we utilized in our oral and maxillofacial radiology course for second-year dental students. The aim of our study was to assess the correlation between students' performance on course exams and self-assessment LC quizzes. The performance of 354 predoctoral dental students from 2 consecutive classes on the course exams and LC quizzes was assessed to identify correlations using the Spearman rank correlation test. The first class was given in-class LC quizzes that were graded for accuracy. The second class was given out-of-class quizzes that were treated as online self-assessment exercises. The grading in the self-assessment exercises was for participation only and not accuracy. All quizzes were scheduled 1-2 weeks before the course examinations. A positive but weak correlation was found between the overall quiz scores and exam scores when the two classes were combined (P<0.0001). A positive but weak correlation was likewise found between students' performance on exams and on in-class LC quizzes (class of 2016) (P<0.0001) as well as on exams and online LC quizzes (class of 2017) (P<0.0001). It is not just the introduction of technological tools that impacts learning, but also their use in enabling an interactive learning environment. The LC platform provides an excellent technological tool for enhancing learning by improving bidirectional communication in a learning environment.

  5. Interactive learning in oral and maxillofacial radiology

    International Nuclear Information System (INIS)

    Ramesh, Aruna; Ganguly, Rumpa

    2016-01-01

    The use of electronic tools in teaching is growing rapidly in all fields, and there are many options to choose from. We present one such platform, Learning Catalytics (LC) (Pearson, New York, NY, USA), which we utilized in our oral and maxillofacial radiology course for second-year dental students. The aim of our study was to assess the correlation between students' performance on course exams and self-assessment LC quizzes. The performance of 354 predoctoral dental students from 2 consecutive classes on the course exams and LC quizzes was assessed to identify correlations using the Spearman rank correlation test. The first class was given in-class LC quizzes that were graded for accuracy. The second class was given out-of-class quizzes that were treated as online self-assessment exercises. The grading in the self-assessment exercises was for participation only and not accuracy. All quizzes were scheduled 1-2 weeks before the course examinations. A positive but weak correlation was found between the overall quiz scores and exam scores when the two classes were combined (P<0.0001). A positive but weak correlation was likewise found between students' performance on exams and on in-class LC quizzes (class of 2016) (P<0.0001) as well as on exams and online LC quizzes (class of 2017) (P<0.0001). It is not just the introduction of technological tools that impacts learning, but also their use in enabling an interactive learning environment. The LC platform provides an excellent technological tool for enhancing learning by improving bidirectional communication in a learning environment

  6. Role of prophylactic antiemetics in oral and maxillofacial surgery

    International Nuclear Information System (INIS)

    Hanif, S.; Warraich, R.A.; Khan, S.R.; Riaz, N.; Mehdi, A.J.

    2014-01-01

    To find out the occurrence of postoperative nausea and vomiting (PONY) in oral and maxillofacial surgery done under general anaesthesia and to evaluate the purpose of using prophylactic antiemetic drugs. Design: Observational study. Place and Duration of the Study: Oral and Maxillofacial Department, KEMU / Mayo Hospital Lahore, from September 20 II to June 2012. Method: The number of patients who were operated in oral and maxillofacial surgery ward irrespective of age and gender for this study were 240. Risk factors related with PONY including gender, anesthetic drug used, surgical procedure, approach' used, total time of surgery and postoperative use of opioids were investigated. A wait and watch scheme was followed in patients with complaint of PONY. Antiemetics to be given in those cases where more than 2 episodes of vomiting took place. Results: It was found out that only II patients experienced from nausea and vomiting in post operative period. A notable relation was seen between PONY and female population, total time of surgery, anesthetic drug, surgery of tumor and temporomandibular joint. The surgical approach and opioids in postoperative period for PONY were found to be insignificant. Conclusion: PONY is not a significant finding in oral and maxillofacial surgery. We find out that there is no logic for the use of prophylactic antiemetic drugs in maxillofacial surgery. (author)

  7. Rogue-Elephant-Inflicted Panfacial Injuries: A Rare Case Report

    Directory of Open Access Journals (Sweden)

    Santosh Kumar Yadav

    2012-01-01

    Full Text Available Attacks by elephants, the largest of the “large animals,” produce many fatalities a year. Most attacks are provoked, although rogue elephants are occasionally responsible. Trampling, goring, tossing the individual with the trunk, or crushing with the knees produces the injuries. Injuries from encounters with large animals represent a significant health risk for rural communities. Wild-animal-inflicted maxillofacial injuries are rare, and limited literature is available describing their management. We present a case of severe maxillofacial injuries caused by the attack of a rogue elephant.

  8. Development and application of stent-based image guided navigation system for oral and maxillofacial surgery

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Woo Jin; Kim, Dae Seung [Interdisciplinary Program in Radiation Applied Life Science, Dental Research Institute and BK21, College of Medicine, Seoul National University, Seoul (Korea, Republic of); Yi, Won Jin; Lee, Sam Sun; Choi, Soon Chul; Heo, Min Suk; Huh, Kyung Hoe; Kim, Myung Jin; Lee, Jee Ho [Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, Seoul (Korea, Republic of)

    2009-09-15

    The purpose of this study was to develop a stent-based image guided surgery system and to apply it to oral and maxillofacial surgeries for anatomically complex sites. We devised a patient-specific stent for patient-to-image registration and navigation. Three dimensional positions of the reference probe and the tool probe were tracked by an optical camera system and the relative position of the handpiece drill tip to the reference probe was monitored continuously on the monitor of a PC. Using 8 landmarks for measuring accuracy, the spatial discrepancy between CT image coordinate and physical coordinate was calculated for testing the normality. The accuracy over 8 anatomical landmarks showed an overall mean of 0.56 {+-} 0.16 mm. The developed system was applied to a surgery for a vertical alveolar bone augmentation in right mandibular posterior area and possible interior alveolar nerve injury case of an impacted third molar. The developed system provided continuous monitoring of invisible anatomical structures during operation and 3D information for operation sites. The clinical challenge showed sufficient accuracy and availability of anatomically complex operation sites. The developed system showed sufficient accuracy and availability in oral and maxillofacial surgeries for anatomically complex sites.

  9. Development and application of stent-based image guided navigation system for oral and maxillofacial surgery

    International Nuclear Information System (INIS)

    Lee, Woo Jin; Kim, Dae Seung; Yi, Won Jin; Lee, Sam Sun; Choi, Soon Chul; Heo, Min Suk; Huh, Kyung Hoe; Kim, Myung Jin; Lee, Jee Ho

    2009-01-01

    The purpose of this study was to develop a stent-based image guided surgery system and to apply it to oral and maxillofacial surgeries for anatomically complex sites. We devised a patient-specific stent for patient-to-image registration and navigation. Three dimensional positions of the reference probe and the tool probe were tracked by an optical camera system and the relative position of the handpiece drill tip to the reference probe was monitored continuously on the monitor of a PC. Using 8 landmarks for measuring accuracy, the spatial discrepancy between CT image coordinate and physical coordinate was calculated for testing the normality. The accuracy over 8 anatomical landmarks showed an overall mean of 0.56 ± 0.16 mm. The developed system was applied to a surgery for a vertical alveolar bone augmentation in right mandibular posterior area and possible interior alveolar nerve injury case of an impacted third molar. The developed system provided continuous monitoring of invisible anatomical structures during operation and 3D information for operation sites. The clinical challenge showed sufficient accuracy and availability of anatomically complex operation sites. The developed system showed sufficient accuracy and availability in oral and maxillofacial surgeries for anatomically complex sites.

  10. Oral and maxillofacial surgery with computer-assisted navigation system.

    Science.gov (United States)

    Kawachi, Homare; Kawachi, Yasuyuki; Ikeda, Chihaya; Takagi, Ryo; Katakura, Akira; Shibahara, Takahiko

    2010-01-01

    Intraoperative computer-assisted navigation has gained acceptance in maxillofacial surgery with applications in an increasing number of indications. We adapted a commercially available wireless passive marker system which allows calibration and tracking of virtually every instrument in maxillofacial surgery. Virtual computer-generated anatomical structures are displayed intraoperatively in a semi-immersive head-up display. Continuous observation of the operating field facilitated by computer assistance enables surgical navigation in accordance with the physician's preoperative plans. This case report documents the potential for augmented visualization concepts in surgical resection of tumors in the oral and maxillofacial region. We report a case of T3N2bM0 carcinoma of the maxillary gingival which was surgically resected with the assistance of the Stryker Navigation Cart System. This system was found to be useful in assisting preoperative planning and intraoperative monitoring.

  11. Ultrasonography - A diagnostic modality for oral and maxillofacial diseases

    Directory of Open Access Journals (Sweden)

    Priya Shirish Joshi

    2014-01-01

    Full Text Available Background: Many diseases present themselves in oral and maxillofacial regions and various modalities may be applied for their diagnosis, including intraoral and panoramic radiography, ultrasonography (USG, computer tomography, magnetic resonance imaging, and nuclear medicine methods such as positron emission tomography. Of these modalities, USG is easy to-use for the detection of non-invasive and soft tissue related diseases in oral and maxillofacial regions. USG plays an important role in analyzing normal and abnormal structures. In particular, in oral and maxillofacial regions, the USG may be clinically applied to evaluate lymph nodes, subcutaneous, and oral cavity-related diseases. Aims: The aim was to correlate the findings of USG and histopathology for the diagnosis of oral and maxillofacial pathology and to evaluate whether USG can be used as an adjunct in diagnosing oral and maxillofacial pathology. Materials and Methods: A total of 10 clinically diagnosed patients with intraoral cancerous growths, swellings in maxillary and neck region were included in this study. Incision biopsy was obtained for confirming provisional clinical diagnosis. The selected cases were advised USG. All patients were then posted either for hemi-glossectomy, hemi-mandibulectomy, and partial maxillectomy with or without radical neck dissection. Statistical Analysis: Student′s t-test and coefficient of correlation was used to statistically analyze significant relationship of both the methods. Result: In all 10 cases, USG correlated well with histopathology findings, it could also delineate tumor extent and measure tumor thickness. Conclusion: USG is an excellent method for the diagnosis of soft tissue lesions and can be used as an adjunct in diagnosing oral and maxillofacial pathology.

  12. A statistical study of the maxillofacial diseases by radiograms

    Energy Technology Data Exchange (ETDEWEB)

    Chung, Yoo Tai; Lee, Sang Chull [College of Dentistry, Kyunghee University, Seoul (Korea, Republic of)

    1974-11-15

    This report based on 300 cases of serious diseases in maxillofacial region by radiograms seen at the department of dental radiodontics, infirmary school of dentistry, Kyung Hee University from October 1971 to August 1974. The maxillofacial diseases were analysed upon the following items, such as 1) the frequency of dominant diseases, 2) sex-ratio of male to female, 3) predominant region of diseases, 4) comparison with the age, 5) the incidence of diseases in relative to the individual teeth. The results were obtained as follows. 1) Among the total of 300 cases of the patients, the frequency of dominant diseases of patients were fractures of facial bone (44.3 {+-} 2.87%), inflammatory diseases (22.7 {+-} 2.39%), cysts (11.1 {+-} 1.62%), tumors(10.7 {+-} 1.77%), maxillary sinusitis (7.9 {+-} 1.56%), temporomandibular joint disorders(3.3 {+-} 1.05%) in the order. 2) The sex ratio of male to female in occurrence of jaw fractures were 7.3 : 1, temporomandibular joint disorders were 2.1 : 1, inflammatory diseases were 1.8:1, maxillary sinusitis were 1.7 : 1, but tumors were 1: 1, while cysts were 1:1 .2 in sex difference.3) The predominant region of mandibular fractures were symphysis (17.3 {+-} 3.27%), canine region (15.0 {+-} 3.09%), and angle region(14.3 {+-} 3.04%) in the order. Inflammatory diseases were occurred frequently in mandible and it's left side were a little dominant. Odontogenic cysts were observed frequently in maxilla, but regardless of right and left. Carcinomas were involved most frequently in maxilla, while sarcomas and ameloblastomas in mandible. Frequency of the maxillary sinusitis w ere dominant in right side and molar area, also temporomandibular joint disorders were dominant in right side. 4) To study comparing with the age, jaw fractures showed the highest ratio at the 2nd decade (32.3 {+-} 4.06%), and 3rd decade (27.8 {+-} 3.89%), 4th decade (19.6 {+-} 3.44%), 6th decade (9.0 {+-} 2.47%), 5th decade(6.0 {+-} 2.06%), lst decade(5.3 {+-} 1

  13. Craniomaxillofacial falling bullet injuries and management.

    Science.gov (United States)

    Shuker, Sabri T; Sadda, Raid

    2010-07-01

    The purpose of this study was to bring attention to craniocerebral maxillofacial perforating/penetrating injuries due to AK-47 Kalashnikov falling bullets (FBs); these dangerous injuries to both civilians and soldiers are rare. A review of the literature shows no reports on AK-47 FBs leading to double craniocerebral perforation and settling into the maxillofacial region. The number of victims, the AK-47's availability, the associated morbidity and mortality rates, and the rarity of cases prompted this article. The treatment of injuries to the craniocerebral facial clinical profile due to FBs is challenging, and an understanding of the neurosurgical and maxillofacial management of these low-velocity FB injuries is required. We treated 11 cases due to AK-47 rifle FBs and 1 due to anti-aircraft Dashka 12.7-mm FBs. Craniocerebral facial injuries were treated and lodged bullets removed from different challenging locations in the base of the skull, without increasing morbidity and with avoidance of unnecessary surgical trauma to the affected area by the bullets. The required identification of such injuries can be difficult, and the removal of the lodged bullet to prevent secondary complications and reduce the chance of secondary infection can be graver than in other parts of the body. AK-47 FBs are a major public health concern internationally and require serious attention in terms of protection and management for civilians and soldiers in uniform. Copyright 2010 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  14. Emergency Department Presentations for Injuries in Older Adults Independently Known to be Victims of Elder Abuse.

    Science.gov (United States)

    Rosen, Tony; Bloemen, Elizabeth M; LoFaso, Veronica M; Clark, Sunday; Flomenbaum, Neal E; Lachs, Mark S

    2016-03-01

    Elder abuse is under-recognized by emergency department (ED) providers, largely due to challenges distinguishing between abuse and accidental trauma. To describe patterns and circumstances surrounding elder abuse-related and potentially abuse-related injuries in ED patients independently known to be physical elder abuse victims. ED utilization of community-dwelling victims of physical elder abuse in New Haven, CT from 1981-1994 was analyzed previously. Cases were identified using Elderly Protective Services data matched to ED records. Sixty-six ED visits were judged to have high probability of being related to elder abuse and 244 were of indeterminate probability. We re-examined these visits to assess whether they occurred due to injury. We identified and analyzed in detail 31 injury-associated ED visits from 26 patients with high probability of being related to elder abuse and 108 visits from 57 patients with intermediate probability and accidental injury. Abuse-related injuries were most common on upper extremities (45% of visits) and lower extremities (32%), with injuries on head or neck noted in 13 visits (42%). Bruising was observed in 39% of visits, most commonly on upper extremities. Forty-two percent of purportedly accidental injuries had suspicious characteristics, with the most common suspicious circumstance being injury occurring more than 1 day prior to presentation, and the most common suspicious injury pattern being maxillofacial injuries. Victims of physical elder abuse commonly have injuries on the upper extremities, head, and neck. Suspicious circumstances and injury patterns may be identified and are commonly present when victims of physical elder abuse present with purportedly accidental injuries. Copyright © 2016 Elsevier Inc. All rights reserved.

  15. Oral Rehabilitation in a Patient with Major Maxillofacial Trauma: A Case Management

    Directory of Open Access Journals (Sweden)

    Elif Bahar Tuna

    2012-01-01

    Full Text Available Traumatic injuries may cause anatomic deficiencies in soft and hard tissues. These defects often result in the loss of attached mucosa and alveolar processes, which might reduce potential prosthesis support and require bone and skin grafting. As a result of major maxillofacial trauma, complete or partial avulsion of the palate may require extensive surgical and prosthodontic rehabilitation. The appropriate treatment for the maxillary defect demands a multidisciplinary approach by a team which consists of various fields of dentistry and medicine. The planning prostheses should replace not only missing teeth but also lost soft tissues and bone, and they should include the hard palate, residual alveolar ridges, and, in some instances, the soft palate. This paper describes the treatment procedures including plastic surgery operation procedures and prosthetic rehabilitation in a 19-year-old woman after her severe bicycle accident.

  16. Survival in patients with oral and maxillofacial diffuse large B-cell lymphoma

    Directory of Open Access Journals (Sweden)

    Janet Ofelia Guevara-Canales

    2013-11-01

    Full Text Available The purpose of this study was to determine the survival and prognostic factors of patients with diffuse large B-cell lymphoma (DLBCL of the oral cavity and maxillofacial region. Retrospectively, the clinical records of patients with a primary diagnosis of DLBCL of the oral cavity and maxillofacial region treated at the A.C. Camargo Hospital for Cancer, São Paulo, Brazil, between January 1980 and December 2005 were evaluated to determine (A overall survival (OS at 2 and 5 years and the individual survival percentage for each possible prognostic factor by means of the actuarial technique (also known as mortality tables, and the Kaplan Meier product limit method (which provided the survival value curves for each possible prognostic factor; (B prognostic factors subject to univariate evaluation with the log-rank test (also known as Mantel-Cox, and multivariate analysis with Cox's regression model (all the variables together. The data were considered significant at p ≤ 0.05. From 1980 to 2005, 3513 new cases of lymphomas were treated, of which 151 (4.3% occurred in the oral cavity and maxillofacial region. Of these 151 lesions, 48 were diffuse large B-cell lymphoma, with 64% for OS at 2 years and 45% for OS at 5 years. Of the variables studied as possible prognostic factors, multivariate analysis found the following variables have statistically significant values: age (p = 0.042, clinical stage (p = 0.007 and performance status (p = 0.031. These data suggest that patients have a higher risk of mortality if they are older, at a later clinical stage, and have a higher performance status.

  17. ORBITAL INJURIES

    Directory of Open Access Journals (Sweden)

    Andrej Kansky

    2002-12-01

    Full Text Available Background. Orbit is involved in 40% of all facial fractures. There is considerable variety in severity, ranging from simple nondisplaced to complex comminuted fractures. Complex comminuted fractures (up to 20% are responsible for the majority of complications and unfavorable results. Orbital fractures are classified as internal orbital fractures, zygomatico-orbital fractures, naso-orbito-ethmoidal fractures and combined fractures. The ophtalmic sequelae of midfacial fractures are usually edema and ecchymosis of the soft tissues, subconjuctival hemorrhage, diplopia, iritis, retinal edema, ptosis, enophthalmos, ocular muscle paresis, mechanical restriction of ocular movement and nasolacrimal disturbances. More severe injuries such as optic nerve trauma and retinal detachments have also been reported. Within the wide range of orbital fractures small group of complex fractures causes most of the sequelae. Therefore identification of severe injuries and adequate treatment is of major importance. The introduction of craniofacial techniques made possible a wide exposure even of large orbital wall defects and their reconstruction by bone grafts. In spite of significant progress, repair of complex orbital wall defects remains a problem even for the experienced surgeons.Results. In 1999 121 facial injuries were treated at our department (Clinical Centre Ljubljana Dept. Of Maxillofacial and Oral Surgery. Orbit was involved in 65% of cases. Isolated inner orbital fractures presented 4% of all fractures. 17 (14% complex cases were treated, 5 of them being NOE, 5 orbital (frame and inner walls, 3 zygomatico-orbital, 2 FNO and 2 maxillo-orbital fractures.Conclusions. Final result of the surgical treatment depends on severity of maxillofacial trauma. Complex comminuted fractures are responsable for most of the unfavorable results and ocular function is often permanently damaged (up to 75% in these fractures.

  18. Maxillofacial and mandibular phenotypes in the skulls of red Sokoto ...

    African Journals Online (AJOL)

    This work examined phenotypic expressions in the anatomy of the mandible and maxillofacial region of the Red Sokoto and Sahel goats in Nigeria. The infraorbital foramen was placed above premolar two (PM2) in Red Sokoto but above premolar one (PM1) in Sahel. The Red Sokoto displayed interdigital septa (ruggae) ...

  19. 3D workflows in orthodontics, maxillofacial surgery and prosthodontics

    NARCIS (Netherlands)

    van der Meer, Wicher Jurjen

    2016-01-01

    In this thesis different aspects of digital workflows in Orthodontics, Maxillofacial Surgery and Prosthodontics are discussed and, where possible, placed in a broader perspective thereby attempting to go both broader and deeper into the implications of the introduction of 3D digital technology in

  20. Dysocclusion after maxillofacial trauma: a 42 year analysis

    NARCIS (Netherlands)

    Kommers, S.C.; van den Bergh, B.; Boffano, P.; Verweij, K.P.; Forouzanfar, T.

    2014-01-01

    Background The aim of this study was to evaluate the surgical management of posttraumatic dysocclusion in the Department of Oral and Maxillofacial Surgery in the VU Medical Centre in Amsterdam. Patients and methods All patients who underwent surgical correction of a posttraumatic dysocclusion

  1. Evaluation of the scope and practice of oral and maxillofacial ...

    African Journals Online (AJOL)

    2014-11-27

    Nov 27, 2014 ... that developed as a result of the need to treat servicemen injured in ... for effective organization of training, health care planning .... Similarly McNally found 5% female applicants to oral and ... maxillofacial surgeons in Australia worked in both private .... Glass ceiling, preference, prejudice or cohort effect?

  2. Oral and maxillofacial surgical conditions in Nigeria. | Adebayo ...

    African Journals Online (AJOL)

    The Niger Delta region comprises 9 of the 36 states in the Federal Republic of Nigeria. ... 2000 and 2004, our center offered specialized maxillofacial surgical services to ... Ratio of male to female patients was 1.7:1 while patients were aged between 9 ... Health promotion activities are needed to improve awareness for early

  3. Haemangiomas of the maxillofacial region in Benin City, Nigeria ...

    African Journals Online (AJOL)

    Twenty-two patients with haemangiomas of the oro-facial region who presented at the department of Oral and Maxillofacial Surgery, UBTH, were studied. There was a preponderance of females (72.7%) over males (27.3%) and most (59.1%) patients were in the 11-31-year age group, with a median age of 25.0 years.

  4. 2 case reports of the polyostotic fibrous dysplasia on the cranial and maxillofacial bones of the sisters

    International Nuclear Information System (INIS)

    Kim, Han Pyung; Park, Chang Seo

    1979-01-01

    The authors observed 2 cases of fibrous dysplasia on the cranial and maxillofacial bones in 31.28 aged sisters, who had come to the Infirmary of Dental College, Yonsei University. The serial roentgenograms and clinical findings had been taken and the results established as polyostotic fibrous dysplasia according to the findings in their images. To author have obtained the results as follows: 1. Bony expansion of the mandible occurred at 18 years of age and the facial asymmetry appeared due to development of the lesions. 2. The traumatic history were not noted but weak tendency of familial history noted. 3. Endocrine disturbances, hyperpigmentation on the skin and premature puberty in the infancy were not noted. 4. We have concluded these diseases as polyostotic fibrous dysplasia on the cranial and maxillofacial bones with weak familial tendency according to the findings.

  5. Retention systems for extraoral maxillofacial prosthetic implants: a critical review.

    Science.gov (United States)

    Cobein, M V; Coto, N P; Crivello Junior, O; Lemos, J B D; Vieira, L M; Pimentel, M L; Byrne, H J; Dias, R B

    2017-10-01

    We describe the techniques available for retention of implant-supported prostheses: bar-clips, O-rings, and magnets. We present reported preferences and, although this is limited by the heterogeneity of methods used and patients studied, we hope we have identified the best retention systems for maxillofacial prosthetic implants. If practitioners know the advantages and disadvantages of each system, they can choose the most natural and comfortable prosthesis. We searched the PubMed and Scopus databases, and restricted our search to papers published 2001-13. MeSH terms used were Maxillofacial prosthesis and Craniofacial prosthesis OR Craniofacial prostheses. We found a total of 2630 papers, and after duplicates had been removed we analysed the rest and found 25 papers for review. Of these, 12 were excluded because they were case reports or non-systematic reviews. Of the remaining 13, 10 described group analyses and seemed appropriate to find practitioner's choices, as cited in the abstract (n=1611 prostheses). Three papers did not mention the type of prosthetic connection used, so were excluded. The most popular choices for different conditions were analysed, though the sites and retention systems were not specified in all 10 papers. The bar-clip system was the most used in auricular (6/10 papers) and nasal prostheses (4/10). For the orbital region, 6/10 favoured magnets. Non-osseointegrated mechanical or adhesive retention techniques are the least expensive and have no contraindications. When osseointegrated implants are possible, each facial region has a favoured system. The choice of system is influenced by two factors: standard practice and the abilities of the maxillofacial surgeon and maxillofacial prosthetist. Copyright © 2017 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  6. Application of Additive Manufacturing in Oral and Maxillofacial Surgery.

    Science.gov (United States)

    Farré-Guasch, Elisabet; Wolff, Jan; Helder, Marco N; Schulten, Engelbert A J M; Forouzanfar, Tim; Klein-Nulend, Jenneke

    2015-12-01

    Additive manufacturing is the process of joining materials to create objects from digital 3-dimensional (3D) model data, which is a promising technology in oral and maxillofacial surgery. The management of lost craniofacial tissues owing to congenital abnormalities, trauma, or cancer treatment poses a challenge to oral and maxillofacial surgeons. Many strategies have been proposed for the management of such defects, but autogenous bone grafts remain the gold standard for reconstructive bone surgery. Nevertheless, cell-based treatments using adipose stem cells combined with osteoconductive biomaterials or scaffolds have become a promising alternative to autogenous bone grafts. Such treatment protocols often require customized 3D scaffolds that fulfill functional and esthetic requirements, provide adequate blood supply, and meet the load-bearing requirements of the head. Currently, such customized 3D scaffolds are being manufactured using additive manufacturing technology. In this review, 2 of the current and emerging modalities for reconstruction of oral and maxillofacial bone defects are highlighted and discussed, namely human maxillary sinus floor elevation as a valid model to test bone tissue-engineering approaches enabling the application of 1-step surgical procedures and seeding of Good Manufacturing Practice-level adipose stem cells on computer-aided manufactured scaffolds to reconstruct large bone defects in a 2-step surgical procedure, in which cells are expanded ex vivo and seeded on resorbable scaffolds before implantation. Furthermore, imaging-guided tissue-engineering technologies to predetermine the surgical location and to facilitate the manufacturing of custom-made implants that meet the specific patient's demands are discussed. The potential of tissue-engineered constructs designed for the repair of large oral and maxillofacial bone defects in load-bearing situations in a 1-step surgical procedure combining these 2 innovative approaches is

  7. [Application of anaerobic bacteria detection in oral and maxillofacial infection].

    Science.gov (United States)

    Bao, Zhen-ying; Lin, Qin; Meng, Yan-hong; He, Chun; Su, Jia-zeng; Peng, Xin

    2016-02-18

    To investigate the distribution and drug resistance of anaerobic bacteria in the patients with oral and maxillofacial infection. Aerobic and anaerobic bacteria cultures from 61 specimens of pus from the patients with oral and maxillofacial infection in the Department of Oral and Maxillofacial Surgery, Peking University School of Stomatology were identified. The culture type was evaluated by API 20A kit and drug resistance test was performed by Etest method. The clinical data and antibacterial agents for the treatment of the 61 cases were collected, and the final outcomes were recorded. The bacteria cultures were isolated from all the specimens, with aerobic bacteria only in 6 cases (9.8%), anaerobic bacteria only in 7 cases (11.5%), and both aerobic and anaerobic bacteria in 48 cases (78.7%). There were 55 infected cases (90.2%) with anaerobic bacteria, and 81 anaerobic bacteria stains were isolated. The highest bacteria isolation rate of Gram positive anaerobic bacteria could be found in Peptostreptococcus, Bifidobacterium and Pemphigus propionibacterium. No cefoxitin, amoxicillin/carat acid resistant strain was detected in the above three Gram positive anaerobic bacteria. The highest bacteria isolation rate of Gram negative anaerobic bacteria could be detected in Porphyromonas and Prevotella. No metronidazole, cefoxitin, amoxicillin/carat acid resistant strain was found in the two Gram negative anaerobic bacteria. In the study, 48 patients with oral and maxillofacial infection were treated according to the results of drug resistance testing, and the clinical cure rate was 81.3%. Mixed aerobic and anaerobic bacteria cultures are very common in most oral and maxillofacial infection patients. Anaerobic bacteria culture and drug resistance testing play an important role in clinical treatment.

  8. A retrospective analysis of oral and maxillofacial pathology in an Australian paediatric population.

    Science.gov (United States)

    Ha, W N; Kelloway, E; Dost, F; Farah, C S

    2014-06-01

    The prevalence of oral and maxillofacial pathology has not previously been reported in the Australian paediatric population. This study aimed to audit a large pathology service to provide insight into the prevalence of oral and maxillofacial pathology. Written records of a major Australian oral pathology service were imported into an electronic database. Age, gender and histological diagnosis were assessed. Prevalence of histological diagnoses as a percentage of the major diagnostic categories and of the whole sample were calculated, as well as gender predilections and mean age of presentation of disease. A total of 1305 oral pathology specimens, collected from paediatric patients aged 16 and under were included in the analysis. The most common pathology was dental pathology (24.4%), followed by odontogenic cysts (18.5%) and mucosal pathology (17.0%). The most frequently encountered lesion was the dentigerous cyst (9.4%), followed by fibrous hyperplasia (8.3%), radicular cyst (5.2%) and chronic periapical granuloma (5.2%). In the paediatric population, dental pathology and specifically, the dentigerous cyst is the most common pathology type sent for histopathology, suggesting a high prevalence of pathology of dental origin occurring in Australian children. © 2014 Australian Dental Association.

  9. Use of a virtual learning environment for training in maxillofacial emergencies: impact on the knowledge and attitudes of staff in accident and emergency departments.

    Science.gov (United States)

    Elledge, Ross; McAleer, Sean; Thakar, Meera; Begum, Fathema; Singhota, Sanjeet; Grew, Nicholas

    2016-02-01

    Many graduates will take up junior roles in accident and emergency (A&E) departments to which a large proportion of patients present with facial injuries caused by interpersonal violence. However, it is widely recognised that undergraduates and postgraduates have few opportunities for training in oral and maxillofacial surgery. We aimed to assess the impact of a specifically designed maxillofacial emergencies virtual learning environment (VLE) on the knowledge and confidence of junior doctors in two A&E departments. They were given free access to the VLE for one month, and were asked to complete multiple choice questions and to rate their confidence to deal with 10 common situations on visual analogue scales (VAS) at baseline and one month after training. A total of 29 doctors agreed to pilot the website, 21 (72%) completed both sets of questions, and 18 (62%) completed both VAS assessments. The mean (SD) multiple choice score improved from 10 (2.52) to 13 (3.56) out of a maximum of 20 (p=0.004) and the mean (SD) VAS improved from 29.2 (19.2) mm to 45.7 (16.6) mm out of a maximum of 100 mm (p=0.007). This was a small pilot study with limited numbers, but it showed improvements in the knowledge of maxillofacial emergencies and in confidence, although the latter remained low. Further work is needed to examine how these brief educational interventions affect the attitudes of frontline staff to maxillofacial emergencies. Copyright © 2015 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  10. Standardization of methods of maxillofacial roentgenology

    International Nuclear Information System (INIS)

    Rabukhina, N.A.; Arzhantsev, A.P.; Chikirdin, Eh.G.; Tombak, M.I.; Stavitskij, R.V.; Vasil'ev, Yu.D.

    1989-01-01

    Typical errors in teeth roentgenography reproduced in experiment, indicate that considerable disproportional distortions of images of anatomical structures which are decisive for radiodiagnosis, may occur in these cases. Standardization of intraoral roentgenography is based on a strict position of the patient's head, angle of inclination and alignment of a tube. Specialized R3-1 film should be used

  11. Hamstring Injury

    Science.gov (United States)

    Hamstring injury Overview A hamstring injury occurs when you strain or pull one of your hamstring muscles — the group of three muscles that run along ... You may be more likely to get a hamstring injury if you play soccer, basketball, football, tennis ...

  12. Orienteering injuries

    OpenAIRE

    Folan, Jean M.

    1982-01-01

    At the Irish National Orienteering Championships in 1981 a survey of the injuries occurring over the two days of competition was carried out. Of 285 individual competitors there was a percentage injury rate of 5.26%. The article discusses the injuries and aspects of safety in orienteering.

  13. [Percutaneous maxillary nerve block anesthesia in maxillofacial surgery].

    Science.gov (United States)

    Robiony, M; Demitri, V; Costa, F; Politi, M

    1999-01-01

    Personal experience in percutaneous maxillary nerve block anesthesia in association with transmucosal anesthesia of the sphenopalatine ganglion in oral and maxillofacial surgery, is presented. Six Caldwell-Luc, 9 anthrotomies and biopsies of maxillary sinus, 8 removals of extensive odontogenic cysts and 12 surgical maxillary expansions were performed from 1994 to 1996 at our Department. Maxillary transcutaneous nerve block in association with transmucosal anesthesia of the sphenopalatine ganglion were performed. Carbocaine without adrenaline in association with NaCO3 1/10 for maxillary nerve block anesthesia and lidocaineoprilocaine cream (EMLA) for transmucosal anesthesia were employed. Intra- and post-operative pain were evaluated by visual analogue scale in all the patients. Anesthesiological procedures revealed to be effective in all surgical interventions and postoperative analgesia allowed easier pain control. The simplicity of execution, the effective pre- and postoperative anesthesia and the absence of side effects make this procedure particularly indicated in oral and maxillofacial surgery.

  14. Oral, Maxillofacial and Dental Diseases in Captive Cheetahs (Acinonyx jubatus).

    Science.gov (United States)

    Steenkamp, G; Boy, S C; van Staden, P J; Bester, M N

    2018-01-01

    Descriptions of several oral, maxillofacial and dental conditions/diseases exist for a variety of captive large felids, but little is reported on the pathology of free roaming large felids. Apart from focal palatine erosions (FPEs) as initially described by Fitch and Fagan (1982) and some reference to absent incisor teeth, few data exist on diseases affecting the oral, maxillofacial and dental structures of cheetahs (Acinonyx jubatus), regardless of their captivity status. This study reports 18 different conditions affecting the teeth, bone and oral cavity soft tissue of cheetahs, based on initial assessment of 256 animals over 11 years (2002-2012) in South Africa and Namibia. This report excludes oral tumours or FPEs, but includes several acquired and developmental conditions never described before. Copyright © 2017 Elsevier Ltd. All rights reserved.

  15. Orthodontic treatment for oral rehabilitation after multiple maxillofacial bone fractures.

    Science.gov (United States)

    Nakamura, Yoshiki; Ogino, Tomoko Kuroiwa; Hirashita, Ayao

    2008-09-01

    We present the orthodontic treatment of a patient with occlusal dysfunction after plastic surgery for multiple maxillofacial bone fractures caused by a traffic accident. The patient had mandibular deviation to the right because of inappropriate repositioning and fixation of the fractured bone and complete avulsion of both mandibular central incisors. The bilateral mandibular incisors, canines, and premolars were also suspected of partial avulsion or alveolar bone fracture. Several tests, including percussion and dental computed tomography, were performed on these teeth to rule out ankylosis and confirm tooth movement. Camouflage orthodontic treatment was carried out with expansion of the maxillary arch, alignment of both arches, and space closure between the mandibular lateral incisors to improve the occlusion. Good occlusion and interdigitation were obtained. Orthodontic treatment is useful for the rehabilitation of occlusal dysfunction caused by multiple maxillofacial bone fractures.

  16. CBCT images of anatomic landmarks in maxillofacial region

    OpenAIRE

    Mayil, Meltem; Keser, Gaye; Namdar Pekiner, Filiz

    2014-01-01

    Conventional radiographic techniques in dental radiology allows only 2D images of 3D structures of head and neck region. CBCT is a recent technology, is also named as dental volumetric tomography, which was developed as an alternative to conventional CT using cone beam-shaped X-ray to provide more rapid acquisition of a data set of entire maxillofacial region. CBCT has remarkable advantages such as shorter exposure time, reduced image distortion due to patient movements, dec...

  17. [Orthognathic surgery, master-piece of maxillo-facial surgery].

    Science.gov (United States)

    Reychler, H

    2001-01-01

    Orthognathic surgery is this field of the maxillofacial surgery which aims to reposition the jaws or some segments of these jaws when masticatory dysfunctions are evident. This tridimensional repositioning in the craniofacial skeleton allows to restore the masticatory function by means of osteotomies, which must be followed either by preoperative simulated bony displacements or by callus bone distraction. Not only are the functional benefits evident on the dental, articular and neuromuscular levels, but also a facial esthetic harmony can almost be obtained.

  18. Basic studies of CT in the maxillofacial areas, 1

    International Nuclear Information System (INIS)

    Suzuki, Shinichiro; Kaneko, Hiroshi; Higashi, Tomomitsu; Takenaka, Eiichi.

    1982-01-01

    As CT values of hard tissues would pose problems in the application of CT to the maxillofacial area, attenuation coefficients of each oral hard tissue were examined based on the existing data, and the linearity in the area of high x-ray attenuation was examined. We thought that a new contrast scale suitable for each area should be established for measurements of CT values of tissues of high x-ray attenuation such as teeth. (Chiba, N.)

  19. The Use of Telemedicine in Oral and Maxillofacial Surgery.

    Science.gov (United States)

    Wood, Eric W; Strauss, Robert A; Janus, Charles; Carrico, Caroline K

    2016-04-01

    To determine the perceived utility and demand for the application of telemedicine for improved patient care between nonsurgical dental practitioners (GPs) and oral and maxillofacial surgeons (OMS). Two distinct questionnaires were made, one for GPs and one for OMSs. The GP questionnaire was sent to practicing Virginia Dental Association members on an e-mail list (approximately 2,200). The OMS questionnaire was sent by the Virginia Society of Oral Maxillofacial Surgery to members on an e-mail list (approximately 213). Questionnaires included questions about access to care, benefits of telemedicine consultations, reliability of telemedicine consultations, and perceived barriers against and opportunities for the implementation of telemedicine. The questionnaire was completed by 226 GP and 41 OMS respondents. There was a significant difference among responses of GPs based on practice location: rural patients had a longer average time from referral to OMS consultation (P = .003), rural patients traveled longer distances (P telemedicine, whereas OMS respondents were more neutral. GPs responded they would refer more patients (4.4) if consultations could be performed by telemedicine. OMSs agreed that more referrals would influence their decision to provide telemedicine consultations (51%). Practitioners had neutral perceptions about the reliability of telemedicine. OMS respondents agreed they would implement telemedicine in their practice if it provided equally good consultations as in-office visits. According to the present findings, telemedicine could be an important step in the right direction for overcoming current issues with patient access to care and increasing health care costs. The benefits of telemedicine technology have been documented and will continue to be seen with wider application of its use in other areas of health care such as oral and maxillofacial surgery. Copyright © 2016 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier

  20. Anaphylaxis Due to Head Injury

    Directory of Open Access Journals (Sweden)

    Bruner, Heather C.

    2015-05-01

    Full Text Available Both anaphylaxis and head injury are often seen in the emergency department, but they are rarely seen in combination. We present a case of a 30-year-old woman who presented with anaphylaxis with urticaria and angioedema following a minor head injury. The patient responded well to intramuscular epinephrine without further complications or airway compromise. Prior case reports have reported angioedema from hereditary angioedema during dental procedures and maxillofacial surgery, but there have not been any cases of first-time angioedema or anaphylaxis due to head injury. [West J Emerg Med. 2015;16(3:435–437.

  1. Anaphylaxis due to head injury.

    Science.gov (United States)

    Bruner, Heather C; Bruner, David I

    2015-05-01

    Both anaphylaxis and head injury are often seen in the emergency department, but they are rarely seen in combination. We present a case of a 30-year-old woman who presented with anaphylaxis with urticaria and angioedema following a minor head injury. The patient responded well to intramuscular epinephrine without further complications or airway compromise. Prior case reports have reported angioedema from hereditary angioedema during dental procedures and maxillofacial surgery, but there have not been any cases of first-time angioedema or anaphylaxis due to head injury.

  2. Education of Oral and Maxillofacial Radiology in South Korea

    International Nuclear Information System (INIS)

    Choi, Soon Chul

    2009-01-01

    Although x-ray had been used in Dental Clinic and taught as Roentgenology as a part of other lectures, the independent lecture was established at Seoul National University in 1953. The first independent Department was separated from the Department of Oral Surgery at Seoul National University in 1963. Nowadays, there are 6 national and 5 private dental schools in South Korea. Each dental school has a Department of Oral and Maxillofacial Radiology, which fulfills its role in student education and clinical service. What is specially noteworthy is that 8 of the 11 dental schools have changed or will change from the 2+4 year system to 4+4 year system (postgraduate course). The curriculum has also been or is being amended according to this change. Although the contents of courses for Oral and Maxillofacial Radiology are not much different among dental schools, the methods and structure of education are various. We have to do a systematic and comprehensive analysis of the present educational methods and structure of Oral and Maxillofacial Radiology and need to seek the new and more suitable ones based on competency.

  3. Education of Oral and Maxillofacial Radiology in South Korea

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Soon Chul [Department of Oral and Maxillofacial Radiology, Dental Research Institute, School of Dentistry, Seoul National University, Seoul (Korea, Republic of)

    2009-03-15

    Although x-ray had been used in Dental Clinic and taught as Roentgenology as a part of other lectures, the independent lecture was established at Seoul National University in 1953. The first independent Department was separated from the Department of Oral Surgery at Seoul National University in 1963. Nowadays, there are 6 national and 5 private dental schools in South Korea. Each dental school has a Department of Oral and Maxillofacial Radiology, which fulfills its role in student education and clinical service. What is specially noteworthy is that 8 of the 11 dental schools have changed or will change from the 2+4 year system to 4+4 year system (postgraduate course). The curriculum has also been or is being amended according to this change. Although the contents of courses for Oral and Maxillofacial Radiology are not much different among dental schools, the methods and structure of education are various. We have to do a systematic and comprehensive analysis of the present educational methods and structure of Oral and Maxillofacial Radiology and need to seek the new and more suitable ones based on competency.

  4. [Correlations of plasma concentrations of β-amyloid peptide and S-100β with postoperative cognitive dysfunction in patients undergoing oral and maxillofacial cancer surgery].

    Science.gov (United States)

    Liang, Bing; Sun, Yuan-Qing; Jiang, Jue; Xu, Hui

    2016-12-01

    To evaluate the changes of perioperative plasma concentrations of Aβ 1-40 and S-100β to determine the relationship with postoperative cognitive dysfunction in elderly patients undergoing oral and maxillofacial cancer surgeries. One hundred and fifteen patients aged at least 60 years undergoing oral and maxillofacial tumor resection were investigated between May 2014 to December 2014.Neuropsychological tests for detecting postoperative cognitive dysfunction(POCD) were performed one day before surgery and 7 days postoperatively. According to the results of neuropsychological tests on day 7, patients were divided into POCD group and non-POCD group.Plasma values of Aβ 1-40 and S-100β were determined with enzyme linked immunosorbent assay (ELISA) before anesthesia induction, 24 h and 7 days after surgery. The data were analyzed using SPSS 19.0 software package. According to the definition, POCD was present in 37 of 115 (32.3%) patients 1 week after surgery. Compared with pre-anesthesia, S-100β levels in POCD group were significantly increased (Psurgery (Poral and maxillofacial surgeries with general anesthesia. The increasing levels of Aβ 1-40 , S-100β may be associated with the occurence of POCD. Patients with long-lasting operation and high concentrations of Aβ 1-40 and S-100β after surgeries were at a higher risk of POCD. The clinical values of Aβ 1-40 and S-100 as predictive measurements of POCD after oral and maxillofacial cancer surgery appear to be reasonable.

  5. The effect of artificial accelerated weathering on the mechanical properties of maxillofacial polymers PDMS and CPE.

    Science.gov (United States)

    Eleni, P N; Krokida, M K; Polyzois, G L

    2009-06-01

    The effect of UVA-UVB irradiation on the mechanical properties of three different industrial types of polydimethylsiloxane and chlorinated polyethylene samples, used in maxillofacial prostheses, was investigated in this study. Mechanical properties and thermal analysis are commonly used to determine the structural changes and mechanical strength. An aging chamber was used in order to simulate the solar radiation and assess natural aging. Compression and tensile tests were conducted on a Zwick testing machine. Durometer Shore A hardness measurements were carried out in a CV digital Shore A durometer according to ASTM D 2240. Glass transition temperature was evaluated with a differential scanning calorimeter. Simple mathematical models were developed to correlate the measured properties with irradiation time. The effect of UVA-UVB irradiation on compressive behavior affected model parameters. Significant deterioration seems to occur due to irradiation in samples.

  6. [Nonspecific lymphadenitis and adenophlegmon of the maxillofacial area and neck in children].

    Science.gov (United States)

    Bakhmudov, B R

    1996-01-01

    The study into the causes underlying nonspecific lymphadenitis (NSL) and adenophlegmons of the maxillofacial region and the neck (AF) revealed a great variety of etiological factors and primary infectious foci in these diseases. Of 204 children admitted to hospital of the city of Derbent, odontogenic genesis of the disease was determined in 27.45% of cases; dermatogenic, stomatogenic in 23.04 and 12.74% of cases, respectively. ENT and systemic diseases were responsible for NSL and AF in 13.23 and 3.43% of cases. The cause remained unclear in 20.09% of patients. NSL and AF occurred most frequently in the coldest (January, February) and the hottest (July, August) months of the year.

  7. Clinical Features and Treatment Modes of Mandibular Fracture at the Department of Oral and Maxillofacial Surgery, Shimane University Hospital, Japan.

    Directory of Open Access Journals (Sweden)

    Hiroto Tatsumi

    Full Text Available The number of elderly patients with maxillofacial trauma is rapidly increasing due to active lifestyles and longevity. Shimane prefecture has the fastest growing proportion of elderly individuals in Japan. The aim of this study was to reveal the distinctive features and treatment modes of mandibular fracture treatment mode in patients requiring hospitalization at the Department of Oral and Maxillofacial Surgery, Shimane University Hospital, Japan.Patient age, sex, period between injury and first consultation, years since injury, cause of injury, fracture site, treatment, and duration of hospitalization were evaluated. Univariate Poisson regression, relative risk with 95% confidence interval based on the Wald test, Fisher's exact test, and Kruskal-Wallis test were used to explore associations among clinical and demographic variables.In total, 305 patients were diagnosed with and hospitalized for mandibular fracture from 1980 to 2010. Younger age increased the risk for mandibular fracture. Incidence was higher in males than females, particularly in the young, but the male to female ratio decreased with age. The period until first hospital consultation decreased progressively over the study period. Fall was a much more frequent cause in patients aged ≥60 than in those aged <60 years. Mandibular fracture with condyle, symphysis, and angle involvement were most common and were associated with sex, age, and treatment mode. Length of hospitalization has decreased since 1980.In our department, patients aged ≥60 years accounted for a greater proportion of mandibular fracture cases than in many previous studies, reflecting the greater proportion of elderly residents in Shimane prefecture.

  8. Trends in maxillofacial cone-beam computed tomography usage

    International Nuclear Information System (INIS)

    Arnheiter, C.; Scarfe, W.C.; Farman, A.G.

    2006-01-01

    Cone-beam computed tomography (CBCT) is making inroads into dental practice worldwide, both in terms of adding the third dimension to diagnosis, and also in terms of enabling image-guided treatment strategies. This article reports trends in the early referral pattern of patients to a CBCT facility in the United States. With institutional review board approval, a retrospective study was made of sequential CBCT radiographic reports made by a specialist oral and maxillofacial radiology service from May 2004 through January 2006 (n=329). Demographic and referral data were extracted from the reports. Descriptive statistics identified referral patterns, trends, and indications for CBCT. Comparisons were made with the Rogers' Product Innovation Adoption curve. The mean age of referred patients was 45±21 years, and there was a predominance of women (62%). Oral and maxillofacial surgeons (51%) and periodontology specialists (17%) made most patient referrals. The listed reasons for CBCT referrals were dental implant planning (40%), suspected surgical pathology (24%), and temporomandibular joint analysis (16%). Other uses included planning extraction of impacted teeth and orthodontic assessment. Over the period of the study, the numbers of pathology diagnosis cases remained relatively constant, while adoption of CBCT for dental implant planning followed closely the first three stages of the Rogers' Product Innovation Adoption curve. Alongside this increased CBCT adoption for dental implant planning, there was an associated increased demand for use of Digital Imaging and Communications in Medicine (DICOM) image sets for laser modeling and provision of surgical guides. Diagnosis will probably remain a constant source of referral for CBCT examination by oral and maxillofacial radiologists. Nevertheless, more specialized applications such as laser-guided model fabrication and image-guided surgery are expanding indications for CBCT referrals by dentists and also expanding the

  9. The Australian litigation landscape - oral and maxillofacial surgery and general dentistry (oral surgery procedures): an analysis of litigation cases.

    Science.gov (United States)

    Badenoch-Jones, E K; White, B P; Lynham, A J

    2016-09-01

    There are persistent concerns about litigation in the dental and medical professions. These concerns arise in a setting where general dentists are more frequently undertaking a wider range of oral surgery procedures, potentially increasing legal risk. Judicial cases dealing with medical negligence in the fields of general dentistry (oral surgery procedure) and oral and maxillofacial surgery were located using the three main legal databases. Relevant cases were analysed to determine the procedures involved, the patients' claims of injury, findings of negligence and damages awarded. A thematic analysis of the cases was undertaken to determine trends. Fifteen cases over a 20-year period were located across almost all Australian jurisdictions (eight cases involved general dentists; seven cases involved oral and maxillofacial surgeons). Eleven of the 15 cases involved determinations of whether or not the practitioner had failed in their duty of care; negligence was found in six cases. Eleven of the 15 cases related to molar extractions (eight specifically to third molar). Dental and medical practitioners wanting to manage legal risk should have regard to circumstances arising in judicial cases. Adequate warning of risks is critical, as is offering referral in appropriate cases. Preoperative radiographs, good medical records and processes to ensure appropriate follow-up are also important. © 2015 Australian Dental Association.

  10. Analysis of the drilling sound in maxillo-facial surgery

    DEFF Research Database (Denmark)

    Hoffmann, Pablo F.; Gosselin, Florian; Taha, Farid

    2009-01-01

    Auditory feedback can have a great potential in surgical simulators that aim at training skills associated to the correct interpretation of acoustic information. Here, we present a preliminary analysis of the sound that is produced by the drilling procedure in a maxillo-facial surgery when...... performed by expert surgeons. The motivation of this work is to find relevant acoustic parameters that allow for an efficient synthesis method of the drilling sound and to set the basis of the audio component in the simulator so that expert surgical drilling can effectively be conveyed to users...

  11. Maxillofacial prosthetic rehalibilation of the oral cancer patient

    International Nuclear Information System (INIS)

    Wolfaardt, J.F.; Monteith, B.D.

    1982-01-01

    The victim of orofacial cancer is frequently subjected to severe morphological and functional disturbance: a condition which the maxillofacial prosthetist can do much to alleviate through the use of various prosthetic devices. The successful rehabilitation of these patients, however, is often compromised by the presence of psychosocial and other problems, the solution of which extends beyond the limits of a single clinical discipline. The modern approach to orofacial cancer, therefore, is organised within the context of interdisciplinary co-operation: each phase of patient management being planed and executed according to the co-ordinated efforts of the various members of a head and neck cancer team

  12. Delayed Foreign Body Reaction Caused by Bioabsorbable Plates Used for Maxillofacial Fractures

    Directory of Open Access Journals (Sweden)

    Hong Bae Jeon

    2016-01-01

    Full Text Available BackgroundBioabsorbable plates and screws are commonly used to reduce maxillofacial bones, particularly in pediatric patients because they degrade completely without complications after bone healing. In this study, we encountered eight cases of a delayed foreign body reaction after surgical fixation with bioabsorbable plates and screws.MethodsA total of 234 patients with a maxillofacial fracture underwent surgical treatment from March 2006 to October 2013, in which rigid fixation was achieved with the Inion CPS (Inion, Tampere, Finland plating system in 173 patients and Rapidsorb (Synthes, West Chester, PA, USA in 61 patients. Their mean age was 35.2 years (range, 15-84 years. Most patients were stabilized with two- or three-point fixation at the frontozygomatic suture, infraorbital rim, and anterior wall of the maxilla.ResultsComplications occurred in eight (3.4% of 234 patients, including palpable, fixed masses in six patients and focal swelling in two patients. The period from surgical fixation to the onset of symptoms was 9-23 months. Six patients with a mass underwent secondary surgery for mass removal. The masses contained fibrous tissue with a yellow, grainy, cloudy fluid and remnants of an incompletely degraded bioabsorbable plate and screws. Their histological findings demonstrated a foreign body reaction.ConclusionsInadequate degradation of bioabsorbable plates caused a delayed inflammatory foreign body reaction requiring secondary surgery. Therefore, it is prudent to consider the possibility of delayed complications when using bioabsorbable plates and surgeons must conduct longer and closer follow-up observations.

  13. Low burnout risk and high engagement levels among oral and maxillofacial surgeons

    NARCIS (Netherlands)

    Gorter, R.C.; Jacobs, B.L.T.H.; Allard, R.H.B.

    2012-01-01

    Little is known about the well-being of oral and maxillofacial surgeons. The aim of this study was to measure the levels of burnout risk and the demanding work aspects of Dutch oral and maxillofacial surgeons, as well as the levels of positive work engagement and stimulating aspects of the work

  14. Accuracy of secondary maxillofacial reconstruction with prefabricated fibula grafts using 3D planning and guided reconstruction

    NARCIS (Netherlands)

    Schepers, Rutger H.; Kraeima, Joep; Vissink, Arjan; Lahoda, Lars U.; Roodenburg, Jan L. N.; Reintsema, Harry; Raghoebar, Gerry M.; Witjes, Max J.

    Background: We compared the pre-operative 3D-surgical plan with the surgical outcome of complex two-stage secondary reconstruction of maxillofacial defects using inserted implants in the prefabricated fibula graft. Methods: Eleven reconstructions of maxillofacial defects with prefabricated fibulas

  15. Bicycling-related accidents and factors contributing to injury

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez Perez, L.M.; Wideberg, J.; Gonzalez Perez-Somarriba, B.

    2016-07-01

    Objective: This study was conducted to find the epidemiological characteristics of bicycling-related maxillofacial fractures in a defined population, and identify factors contributing to injury. Methodology: A prospective study was carried out involving patients presenting with maxillofacial fractures sustained in bicycling-related accidents. Results: Between 908 of all cycling accidents attending for medical treatment, 122 patients (13% of all cycling accidents) were admitted with facial fractures between 2007 and 2014. Male and female ratio was 2.6:1, and the mean age was 29.4 years (standard deviation: 12.8, range: 12-79 years). Causes of injury included collisions (63%) and accidental falls (37%). The fracture patterns seen were mandibular (49%), zygomatic (32%), orbital (13%), nasal (7%), maxillary (2%), and frontal (2%). Condylar fractures were the most common of the mandibular fractures (63%). The most frequently observed concomitant lesions were orthopedic injuries. Conclusions: Bicycling-related maxillofacial injuries are common and therefore important to identify in order to design a sustainable transport system and for units that provide assistance to traffic accident victims. Missed diagnosis or delayed treatment can lead to facial deformities and functional problems. Wearing protective helmets and the improvement of the helmets design is one aspect that would be of interest for the prevention of injuries. Keywords: Cycling; bicycle-related trauma; maxillofacial fractures; risk factors; helmets. (Author)

  16. Elderly patients with maxillofacial trauma: study of mandibular condyle fractures.

    Science.gov (United States)

    Nogami, Shinnosuke; Yamauchi, Kensuke; Yamashita, Toshio; Kataoka, Yoshihiro; Hirayama, Bunichi; Tanaka, Kenko; Takahashi, Tetsu

    2015-02-01

    The aim of this study was to investigate the trends and characteristic features of mandibular condyle fractures in elderly patients in terms of etiology, patterns, and treatment modalities. Records of 201 patients aged 65 years and older, who were treated for maxillofacial fractures at the Department of Oral and Maxillofacial Surgery, Kyushu Dental University, and Tohoku University from January 2002 to December 2013, were retrospectively analyzed. Patient records and radiographs were examined, with the following information: relevant medical history, cause of fracture, the presence and state of premolars and molars in the maxilla and mandible, number and location of mandible fracture, and method of treatment. As for the state of premolars and molars, premolars or molars in the mandible in contact with the maxilla were regarded as contacted. A fall was responsible for the majority of the fractures (173/201). With condyle fractures, there was a significant difference between the contacted and non-contacted group in regard to incidence. Furthermore, there was a significantly greater number of cases with symphysis and condyle combination fractures in the non-contacted group (70.9%) than in the contacted group (51.9%). As for the method of treatment, arthrocentesis was the most commonly employed. The present findings suggest that contacted molars in the maxilla and mandible have an influence on condyle fractures in elderly individuals. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  17. Practice activity trends among oral and maxillofacial surgeons in Australia

    Directory of Open Access Journals (Sweden)

    Teusner Dana N

    2004-12-01

    Full Text Available Abstract Background The aim of this study was to describe practice activity trends among oral and maxillofacial surgeons in Australia over time. Methods All registered oral and maxillofacial surgeons in Australia were surveyed in 1990 and 2000 using mailed self-complete questionnaires. Results Data were available from 79 surgeons from 1990 (response rate = 73.8% and 116 surgeons from 2000 (response rate = 65.1%. The rate of provision of services per visit changed over time with increased rates observed overall (from 1.43 ± 0.05 services per visit in 1990 to 1.66 ± 0.06 services per visit in 2000, reflecting increases in pathology and reconstructive surgery. No change over time was observed in the provision of services per year (4,521 ± 286 services per year in 1990 and 4,503 ± 367 services per year in 2000. Time devoted to work showed no significant change over time (1,682 ± 75 hours per year in 1990 and 1,681 ± 94 hours per year in 2000, while the number of visits per week declined (70 ± 4 visits per week in 1990 to 58 ± 4 visits per week in 2000. Conclusions The apparent stability in the volume of services provided per year reflected a counterbalancing of increased services provided per visit and a decrease in the number of visits supplied.

  18. Laser tumor treatment in oral and maxillofacial surgery

    Science.gov (United States)

    Neukam, F. W.; Stelzle, F.

    Cancer treatment is an integral part of oral and maxillofacial surgery. Oral cancer in particular is a highly prevalent neoplasm. Standard treatment for most of the tumors is radical surgery combined with stage-based neo-/adjuvant therapy. Laser surgery has become a reliable treatment option for oral cancer as well as for precancerous lesions. Widely used lasers in oral and maxillofacial tumor surgery are the CO2 laser, the Er:YAG laser, the Nd:YAG laser and the KTM laser. The use of lasers in tumor surgery has several advantages: remote application, precise cutting, hemostasis, low cicatrization, reduced postoperative pain and swelling, can be combined with endoscopic, microscopic and robotic surgery. However, laser surgery has some major drawbacks: In contrast to conventional incisions with scalpels, the surgeon gets no feedback during laser ablation. There is no depth sensation and no tissue specificity with a laser incision, increasing the risk of iatrogenic damage to nerves and major blood vessels. Future prospects may solve these problems by means of an optical feedback mechanism that provides a tissue-specific laser ablation. First attempts have been made to perform remote optical tissue differentiation. Additionally, real time optical tumor detection during laser surgery would allow for a very precise and straight forward cancer resection, enhancing organ preservation and hence the quality of life for patients with cancer in the head and neck region.

  19. Surgical Engineering in Cranio-Maxillofacial Surgery: A Literature Review

    Directory of Open Access Journals (Sweden)

    Raphael Olszewski

    2012-01-01

    Full Text Available A systematic review of the literature concerning surgical engineering in cranio-maxillofacial surgery was performed. APubMed search yielded 1721 papers published between 1999 and 2011. Based on the inclusion/exclusion criteria, 1428 articles were excluded after review of titles and abstracts. Atotal of 292 articles were finally selected covering the following topics: finite element analysis (n = 18, computer-assisted surgery (n = 111, rapid prototyping models (n = 41, preoperative training simulators (n = 4, surgical guides (n = 23, image-guided navigation (n = 58, augmented reality (n = 2, video tracking (n = 1, distraction osteogenesis (n = 19, robotics (n = 8, and minimal invasive surgery (n = 7. The results show that surgical engineering plays a pivotal role in the development and improvement of cranio-maxillofacial surgery. Some technologies, such as computer-assisted surgery, image-guided navigation, and three-dimensional rapid prototyping models, have reached maturity and allow for multiple clinical applications, while augmented reality, robotics, and endoscopy still need to be improved.

  20. The use of optical coherence tomography in maxillofacial surgery

    Science.gov (United States)

    Al-Obaidi, Mohammed; Tandon, Rahul; Tiwana, Paul

    2015-02-01

    The ever-evolving medical field continues to trend toward less invasive approaches to the diagnosis and treatment of pathological conditions. Basic sciences research has allowed for improved technologies that are translated to the clinical sciences. Similarly, advancements in imaging modalities continue to improve and their applications become more varied. As such, surgeons and pathologists are able to depend on smaller samples for tissue diagnosis of pathological disease, where once large sections of tissue were needed. Optical coherence tomography (OCT), a high-resolution imaging technique, has been used extensively in different medical fields to improve diagnostic yield. Its use in dental fields, particularly in oral and maxillofacial surgery, remains limited. Our goal is to assess the use of OCT for improving soft tissue analysis and diagnosis, particularly for its applications in the field of oral and maxillofacial surgery. Optical coherence tomography is a modality that uses an optical signal using safe near-infrared light which is reflected off the sub-surface structures. This allows for high-resolution cross-sectional images of the tissue morphology to be obtained. Ophthalmologists have been using OCT to obtain images of the retina to assess for age-related macular degeneration. More recently, OCT has been used by Interventional Cardiology to image coronary arteries, and assess plaque thickness and morphology. This technology is now being investigated in several medical fields as a form of optical biopsy, providing in situ images with high-resolution morphology of tissues. We are particularly interested in its use on epithelial tissues, and therefore performed a literature review on the use of OCT for assessing epithelium. Evaluation of histologically-diagnosed actinic keratosis, for example, was found to correlate well with the imaging discrepancies found on OCT; and the in vivo assessment of atypical keratinocytes was firmly established. Additionally

  1. Co-Occurring Disorders

    Science.gov (United States)

    ... the mental health field. Alcohol and Drug Abuse, Addiction and Co-occurring Disorders: Co-occurring Disorders and ... 500 Montgomery Street, Suite 820 Alexandria, VA 22314 Phone (703) 684.7722 Toll Free (800) 969.6642 ...

  2. Paragliding injuries.

    OpenAIRE

    Krüger-Franke, M; Siebert, C H; Pförringer, W

    1991-01-01

    Regulations controlling the sport of paragliding were issued in April 1987 by the German Department of Transportation. The growing popularity of this sport has led to a steady increase in the number of associated injuries. This study presents the incidence, localization and degree of injuries associated with paragliding documented in Germany, Austria and Switzerland. The 283 injuries suffered by 218 paragliders were documented in the period 1987-1989: 181 occurred during landing, 28 during st...

  3. Surgical management of Stenson's duct injury using epidural catheter

    African Journals Online (AJOL)

    2012-07-05

    Jul 5, 2012 ... Successful management of parotid duct injury depends on early diagnosis and appropriate intervention, failing of ... Mansarovar Dental College Hospital and Research Centre,. Kolar Road ... A 42-year-old male patient presented to maxillofacial .... catheter, catgut suture, and pediatric intravascular cannula.

  4. A case of isolated abducens nerve paralysis in maxillofacial trauma

    Science.gov (United States)

    Keskin, Elif Seda; Keskin, Ekrem; Atik, Bekir; Koçer, Abdülkadir

    2015-01-01

    Nervus abducens is a pure motor nerve located in the pons. It retracts the eyeball laterally by stimulating rectus lateralis muscle. In case of their paralysis, diplopia and restriction in the eye movements while looking sideways, are seen. Since the same signs are seen due to the muscle entrapment in blowout fractures, its differential diagnosis has importance in terms of the treatment protocol and avoiding unnecessary operations. In this article, we present a 22-year-old male patient who was referred to our department due to the prediagnosis of blowout fracture following maxillofacial trauma. However, he was diagnosed with abducens nerve paralysis after the consultations and analysis and his restriction of movement was resolved via systemic steroid treatment instead of unnecessary operation. PMID:26981484

  5. Cone beam computed tomography: A boon for maxillofacial imaging

    Directory of Open Access Journals (Sweden)

    Sreenivas Rao Ghali

    2017-01-01

    Full Text Available In day to day practice, the radiographic techniques used individually or in combination suffer from some inherent limits of all planar two-dimensional (2D projections such as magnification, distortion, superimposition, and misrepresentation of anatomic structures. The introduction of cone-beam computed tomography (CBCT, specifically dedicated to imaging the maxillofacial region, heralds a major shift from 2D to three-dimensional (3D approach. It provides a complete 3D view of the maxilla, mandible, teeth, and supporting structures with relatively high resolution allowing a more accurate diagnosis, treatment planning and monitoring, and analysis of outcomes than conventional 2D images, along with low radiation exposure to the patient. CBCT has opened up new vistas for the use of 3D imaging as a diagnostic and treatment planning tool in dentistry. This paper provides an overview of the imaging principles, underlying technology, dental applications, and in particular focuses on the emerging role of CBCT in dentistry.

  6. Polyostotic Fibrous Dysplasia of Cranio-Maxillofacial Area

    Energy Technology Data Exchange (ETDEWEB)

    Han, Jin Woo; Kwon, Hyuk Rok; Lee, Jin Ho; Park, In Woo [Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Kangnung National University, Kangnung (Korea, Republic of)

    2000-06-15

    Fibrous dysplasia is believed to be a hamartomatous developmental lesion of unknown origin. This disease is divided into monostotic and polyostotic fibrous dysplasia. Polyostotic type can be divided into craniofacial type, Lichtenstein-Jaffe type, and McCune-Albright syndrome. In this case, a 31-year-old female presented spontaneous loss of right mandibular teeth before 5 years and has shown continuous expansion of right mandibular alveolus. Through the radiographic view, the coarse pattern of the mixed radiopaque-lucent lesion was seen on the right mandibular body, and there was diffuse pattern of the mixed radiopaque-lucent lesion with ill-defined margin in the left mandibular body. In the right calvarium, the lesion had cotton-wool appearance. Partial excision for contouring, multiple extraction, and alveoloplasty were accomplished under general anesthesia for supportive treatment. Finally we could conclude this case was polyostotic fibrous dysplasia of cranio-maxillofacial area based on the clinical, radiologic finding, and histopathologic examination.

  7. Polyostotic Fibrous Dysplasia of Cranio-Maxillofacial Area

    International Nuclear Information System (INIS)

    Han, Jin Woo; Kwon, Hyuk Rok; Lee, Jin Ho; Park, In Woo

    2000-01-01

    Fibrous dysplasia is believed to be a hamartomatous developmental lesion of unknown origin. This disease is divided into monostotic and polyostotic fibrous dysplasia. Polyostotic type can be divided into craniofacial type, Lichtenstein-Jaffe type, and McCune-Albright syndrome. In this case, a 31-year-old female presented spontaneous loss of right mandibular teeth before 5 years and has shown continuous expansion of right mandibular alveolus. Through the radiographic view, the coarse pattern of the mixed radiopaque-lucent lesion was seen on the right mandibular body, and there was diffuse pattern of the mixed radiopaque-lucent lesion with ill-defined margin in the left mandibular body. In the right calvarium, the lesion had cotton-wool appearance. Partial excision for contouring, multiple extraction, and alveoloplasty were accomplished under general anesthesia for supportive treatment. Finally we could conclude this case was polyostotic fibrous dysplasia of cranio-maxillofacial area based on the clinical, radiologic finding, and histopathologic examination.

  8. [Contribution of botulinum toxin to maxillo-facial surgery].

    Science.gov (United States)

    Batifol, D; de Boutray, M; Goudot, P; Lorenzo, S

    2013-04-01

    Botulinum toxin has a wide range of use in maxillo-facial surgery due to its action on muscles, on the glandular system, and against pain. It already has been given several market authorizations as indicated for: blepharospasm, spasmodic stiff neck, and glabellar lines. Furthermore, several studies are ongoing to prove its effectiveness and usefulness for many other pathologies: treatment of pain following cervical spine surgery; action on salivary glands after trauma, hypertrophy, or hyper-salivation; analgesic action (acknowledged but still being experimented) on neuralgia, articular pain, and keloids scars due to its anti-inflammatory properties. Botulinum toxin injections in the cervico-facial area are more and more used and should be to be correctly assessed. Copyright © 2013 Elsevier Masson SAS. All rights reserved.

  9. Preparation of an Adhesive in Emulsion for Maxillofacial Prosthetic

    Directory of Open Access Journals (Sweden)

    Joaquín Palacios-Alquisira

    2010-10-01

    Full Text Available Maxillofacial prostheses is a dental medicine specialty aimed at restoring anatomical facial defects caused by cancer, trauma or congenital malformations through an artificial device, which is commonly attached to the skin with the help of an adhesive. The purpose of our research was to develop a pressure-sensitive adhesive (PSA based on acrylic monomers, characterizing and determining its drying kinetics, that is to say the time it takes to lose 50 to 90% of its moisture. The adhesive synthesis was realized by means of emulsion polymerization; the composition of formulations was: (AA‑MMA‑EA and (AA‑MMA‑2EHA with different molar ratios. The formulation based on (AA‑MMA‑2EHA with 50 w% of solids, presented good adhesive properties such as tack, bond strength, and short drying time. We propose this formulation as a PSA, because it offers an alternative for systemically compromised patients, by less irritation compared to organic solvent-based adhesives.

  10. Maxillofacial fracture experiences: a review of 152 cases.

    Science.gov (United States)

    Aydin, Osman Enver; Tan, Onder; Algan, Said; Kuduban, Selma Denktas; Barin, Ensar Zafer; Cinal, Hakan; Sarici, Murat; Avsar, Umit

    2012-12-01

    The fractures of facial structures lead to great morbidity. Cross-sectional studies are needed to evaluate the current state of maxillofacial traumas. Thus, this study aims to evaluate these experiences and to compare these results with the current literature. The medical records of the maxillofacial fracture cases hospitalized between January 2004 and November 2011 were examined. The age, sex, etiology, fracture localization and treatment method for each case were documented. The affected facial bones were grouped as mandible, maxilla, zygoma, naso-orbitoethmoid complex (NOEC) and blow-out. Nasal fractures were excluded. The cases were assigned to 3 groups with respect to age (below 16, above 65 and between 17 and 64). The chi Square test was used to assess the significance of the difference in mandibular fracture rates in the pediatric population compared to others. The total number of cases was 152. The total number of fractures was 185. Of the 152 cases, 117 were male and 35 were female. The average age was 31.4 (±18.3), ranging between 2 and 81. Thirty-one cases were 16 years old or less. Nine cases were 65 years old or more. Mandibular and zygomatic fractures were the most prevalent fractures in the adult group. Mandibular fractures were significantly more common in the pediatric age group compared to rest of the population (X(2), pOpen reduction and internal fixation was the most frequently conducted treatment modality in all age groups. Retrospective studies are important for the projection of future prospects. In summary, our results indicate that pediatric fractures are mostly in the lower face and usually affect the condylar region, which is consistent with the literature.

  11. Oral and maxillofacial surgery residents have poor understanding of biostatistics.

    Science.gov (United States)

    Best, Al M; Laskin, Daniel M

    2013-01-01

    The purpose of this study was to evaluate residents' understanding of biostatistics and interpretation of research results. A questionnaire previously used in internal medicine residents was modified to include oral and maxillofacial surgery (OMS) examples. The survey included sections to identify demographic and educational characteristics of residents, attitudes and confidence, and the primary outcome-knowledge of biostatistics. In 2009 an invitation to the Internet survey was sent to all 106 program directors in the United States, who were requested to forward it to their residents. One hundred twelve residents responded. The percentage of residents who had taken a course in epidemiology was 53%; biostatistics, 49%; and evidence-based dentistry, 65%. Conversely, 10% of OMS residents had taken none of these classes. Across the 6-item test of knowledge of statistical methods, the mean percentage of correct answers was 38% (SD, 22%). Nearly half of the residents (42%) could not correctly identify continuous, ordinal, or nominal variables. Only 21% correctly identified a case-control study, but 79% correctly identified that the purpose of blinding was to reduce bias. Only 46% correctly interpreted a clinically unimportant and statistically nonsignificant result. None of the demographic or experience factors of OMS residents were related to statistical knowledge. Overall, OMS resident knowledge was below that of internal medicine residents (Pbiostatistics and the interpretation of research and are thus unprepared to interpret the results of published clinical research. Residency programs should include effective biostatistical training in their curricula to prepare residents in evidence-based dentistry. Copyright © 2013 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  12. Quality of Postoperative Pain Management After Maxillofacial Fracture Repair.

    Science.gov (United States)

    Peisker, Andre; Meissner, Winfried; Raschke, Gregor F; Fahmy, Mina D; Guentsch, Arndt; Schiller, Juliane; Schultze-Mosgau, Stefan

    2018-05-01

    Effective pain management is an essential component in the perioperative care of surgical patients. However, postoperative pain after maxillofacial fracture repair and its optimal therapy has not been described in detail. In a prospective cohort study, 95 adults rated their pain on the first postoperative day after maxillofacial fracture repair using the questionnaire of the Quality Improvement in Postoperative Pain Management (QUIPS) project. Quality Improvement in Postoperative Pain Management allowed for a standardized assessment of patients' characteristics and pain-related parameters. Overall, the mean maximal pain and pain on activity (numeric rating scales) were significantly higher in patients with mandibular fractures than in patients with midface fractures (P = 0.002 and P = 0.045, respectively). In patients with mandibular fractures, a longer duration of surgery was significantly associated with higher satisfaction with pain intensity (P = 0.015), but was more frequently associated with postoperative vomiting (P = 0.023). A shorter duration of surgery and an absence of preoperative pain counseling in these patients were significantly correlated to desire for more pain medication (P = 0.049 and P = 0.004, respectively). Patients with mandibular fractures that received opioids in the recovery room had significantly higher strain-related pain (P = 0.017). In patients with midface fractures, a longer duration of surgery showed significantly higher levels of decreased mobility (P = 0.003). Patients receiving midazolam for premedication had significantly less minimal pain (P = 0.021). Patients with mandibular fractures seem to have more postoperative pain than patients with midface fractures. Monitoring of postsurgical pain and a procedure-specific pain-treatment protocol should be performed in clinical routine.

  13. Are You Ready for Emergency Medical Services in Your Oral and Maxillofacial Surgery Office?

    Science.gov (United States)

    Rayner, Clive; Ragan, Michael R

    2018-05-01

    Efficient responses to emergencies in the oral and maxillofacial surgery office require preparation, communication, and thorough documentation of the event and response. The concept of team anesthesia is showcased with these efforts. Emergency medical services training and response times vary greatly. The oral and maxillofacial surgery office should be prepared to manage the patient for at least 15 minutes after making the call to 911. Patient outcomes are optimized when providers work together to manage and transport the patient. Oral and maxillofacial surgery offices should develop and rehearse emergency plans and coordinate these protocols with local Emergency medical services teams. Copyright © 2018 Elsevier Inc. All rights reserved.

  14. Posterior urethral injuries associated with motorcycle accidents and pelvic trauma in adolescents: analysis of urethral lesions occurring prior to a bony fracture using a computerized finite-element model.

    Science.gov (United States)

    Bréaud, J; Montoro, J; Lecompte, J F; Valla, J S; Loeffler, J; Baqué, P; Brunet, C; Thollon, L

    2013-02-01

    Adolescent males involved in motorcycle accidents are particularly at risk for pelvic injury, which may provoke a posterior urethral injury. The aim of this study was to develop a model to analyze the association between injuries and fractures of the pelvic ring and the risk of posterior urethral injury. Based on experience with traffic accident modeling, a computerized finite-element model was extrapolated from a computerized tomography scan of a 15-year-old boy. The anatomic structures concerned in urethral and pelvic ring trauma were isolated, rendered in 3D and given biomechanical properties. The model was verified according to available experiments on pelvic ring trauma. To apply the model, we recreated three impact mechanisms on the pelvic ring: lateral impact, antero-posterior impact and a real car‒motorcycle accident situation (postero-lateral impact). In all three situations, stretching of the posterior urethra was identified prior to bony fracture visualization. Application of this model allowed us to analyze precisely the link between trauma of the pelvic ring and lesions of the posterior urethra. The results should help to establish guidelines for urethral catheterization in male adolescents in cases of pelvic trauma, even when no bony fracture is present, in order to prevent iatrogenic worsening of a misdiagnosed posterior urethral trauma. Copyright © 2011 Journal of Pediatric Urology Company. Published by Elsevier Ltd. All rights reserved.

  15. Repercusión oftalmológica de los traumatismos maxilofaciales Ophthalmological repercussion of maxillofacial traumatisms

    Directory of Open Access Journals (Sweden)

    José Manuel Díaz Fernández

    2004-12-01

    Full Text Available Se presenta un estudio prospectivo de 40 pacientes afectados por traumatismos maxilofaciales con lesiones oftalmológicas asociadas, asistidos en el Hospital Clinico quirúrgico Docente "Saturnino Lora" de Santiago de Cuba, durante el año 1995. La lesión oftalmológica más frecuente fue el hematoma palpebral, asociado con un porcentaje significativo de lesiones graves, las cuales estaban en relación con el área afectada durante el traumatismo. Se comportó con incidencia elevada la agudeza visual dentro de los límites normales. La secuela que más se presentó fue la cicatriz deformante de anejos. Se reportan casos de secuelas graves como la pérdida del globo ocular. Los estudios electrofisiológicos demostraron su importancia para la evaluación funcional de las lesiones oftalmológicas.prospective study of 40 patients suffering from maxillofacial traumatisms with associated ophthalmological injuries that recieved attention at "Saturnino Lora" Clinical and Surgical Teaching Hospital, in Santiago de Cuba, in 1995, was presented. The most frequent ophthalmological injury was the palpebral hematoma associated with a significant percentage of severe injuries, which were related to the area affected during traumatism. Visual acuity had an elevated incidence within the normal limits. The adnexa deforming scar was the most common sequela. Cases of severe sequelae, such as the loss of the eyeball, were reported.

  16. Recent advances in the reconstruction of cranio-maxillofacial defects using computer-aided design/computer-aided manufacturing.

    Science.gov (United States)

    Oh, Ji-Hyeon

    2018-12-01

    With the development of computer-aided design/computer-aided manufacturing (CAD/CAM) technology, it has been possible to reconstruct the cranio-maxillofacial defect with more accurate preoperative planning, precise patient-specific implants (PSIs), and shorter operation times. The manufacturing processes include subtractive manufacturing and additive manufacturing and should be selected in consideration of the material type, available technology, post-processing, accuracy, lead time, properties, and surface quality. Materials such as titanium, polyethylene, polyetheretherketone (PEEK), hydroxyapatite (HA), poly-DL-lactic acid (PDLLA), polylactide-co-glycolide acid (PLGA), and calcium phosphate are used. Design methods for the reconstruction of cranio-maxillofacial defects include the use of a pre-operative model printed with pre-operative data, printing a cutting guide or template after virtual surgery, a model after virtual surgery printed with reconstructed data using a mirror image, and manufacturing PSIs by directly obtaining PSI data after reconstruction using a mirror image. By selecting the appropriate design method, manufacturing process, and implant material according to the case, it is possible to obtain a more accurate surgical procedure, reduced operation time, the prevention of various complications that can occur using the traditional method, and predictive results compared to the traditional method.

  17. Aetiology and incidence of maxillofacial trauma in Amsterdam: a retrospective analysis of 579 patients

    NARCIS (Netherlands)

    van den Bergh, B.; Karagozoglu, K.H.; Heijmans, M.W.; Forouzanfar, T.

    2012-01-01

    Introduction: The incidence of maxillofacial fractures varies widely between different countries. The large variability in reported incidence and aetiology is due to a variety of contributing factors, including environmental, cultural and socioeconomic factors. This retrospective report presents a

  18. Aetiology and incidence of maxillofacial trauma in Amsterdam: a retrospective analysis of 579 patients

    NARCIS (Netherlands)

    van den Bergh, B.; Karagozoglu, K.H.; Heymans, M.W.; Forouzanfar, T.

    2012-01-01

    Introduction The incidence of maxillofacial fractures varies widely between different countries. The large variability in reported incidence and aetiology is due to a variety of contributing factors, including environmental, cultural and socioeconomic factors. This retrospective report presents a

  19. Development of a novel technique for maxillofacial reconstruction using custom-made bioactive ceramic implants

    Science.gov (United States)

    Kulbakin, D. E.; Choinzonov, E. L.; Kulkov, S. N.; Buyakova, S. P.; Chernov, V. I.; Mukhamedov, M. R.; Buyakov, A. S.

    2017-09-01

    Recently, there has been a trend towards the search for new, safe and effective methods of reconstruction of maxillofacial defects after tumor excision. Among various materials used for bone defect reconstruction, ceramics has attached a great deal of attention. The purpose of our study was to develop a technique for personified approach to the reconstruction of maxillofacial bone defects with bioactive ceramic implants. In our study we used the technique of virtual implant planning for maxillofacial reconstruction using preoperative CT data of the patient's facial skeleton. Bioactive ceramic implant materials meet all the requirements for medical materials used in reconstructive surgery. The technique described in this paper to customize prefabricated bioactive ceramic implants enables surgeons to perform reconstruction of large postoperative defects in the maxillofacial region, thereby making custom implants suitable for any patient. The use of this technique decreases surgical time, reduces time needed for postoperative recovery, lowers overall patient morbidity and optimizes aesthetic and functional results.

  20. Oro-Dental and Maxillofacial Trauma in Epilepsy at a Tertiary ...

    African Journals Online (AJOL)

    Oro-Dental and Maxillofacial Trauma in Epilepsy at a Tertiary Hospital in Lagos. ... Information sought included patient's sociodemographics, type of seizure, ... bones were not so common, all such cases received surgical treatment in hospital.

  1. Craniomaxillofacial Trauma: Synopsis of 14,654 Cases with 35,129 Injuries in 15 Years

    Science.gov (United States)

    Kraft, Anna; Abermann, Elisabeth; Stigler, Robert; Zsifkovits, Clemens; Pedross, Florian; Kloss, Frank; Gassner, Robert

    2011-01-01

    Craniomaxillofacial (CMF) trauma occurs in isolation or in combination with other serious injuries, including intracranial, spinal, and upper- and lower-body injuries. It is a major cause of expensive treatment and rehabilitation requirements, temporary or lifelong morbidity, and loss of human productivity. The aim of this study was to evaluate patterns of CMF trauma in a large patient sample within a 15-year time frame. Between 1991 and 2005, CMF trauma data were collected from 14,654 patients with 35,129 injuries at the Department of Cranio-Maxillofacial and Oral Surgery in Innsbruck, assessing a plethora of parameters such as injury type and mechanism as well as age and gender distribution over time. Three main groups of CMF trauma were evaluated: facial bone fractures, dentoalveolar trauma, and soft tissue injuries. Statistical comparisons were carried out using a chi-square test. This was followed by a logistic regression analysis to determine the impact of the five main causes for CMF injury. Older people were more prone to soft tissue lesions with a rising risk of 2.1% per year older, showing no significant difference between male and female patients. Younger patients were at higher risk of suffering from dentoalveolar trauma with an increase of 4.4% per year younger. This number was even higher (by 19.6%) for female patients. The risk of sustaining facial bone fractures increased each year by 4.6%. Male patients had a 66.4% times higher risk of suffering from this type of injury. In addition, 2550 patients (17.4%) suffered from 3834 concomitant injuries of other body parts. In summary, we observed changing patterns of CMF trauma over the last 15 years, paralleled by advances in refined treatment and management options for rehabilitation and reconstruction of patients suffering from CMF trauma. PMID:23449961

  2. Oral and maxillofacial tumours in children and adolescents: Clinicopathologic audit of 75 cases in an academic medical centre, Sokoto, Northwest Nigeria

    Directory of Open Access Journals (Sweden)

    Abdurrazaq Olanrewaju Taiwo

    2017-01-01

    Full Text Available Background: Maxillofacial tumours in children and adolescents have been documented worldwide; however, few studies were reported from Africa, especially sub-Saharan Africa. In Nigeria, most of the studies emanated from the Southwest region. Aim: To present an audit of clinicopathologic features and treatment of orofacial tumours in children and adolescents in Sokoto, Northwest Nigeria. Patients and Methods: Clinicopathologic records of the Departments of Dental and Maxillofacial Surgery, Paediatrics and Histopathology, Usmanu Danfodiyo University Teaching Hospital, Sokoto, Nigeria, were reviewed for all the oral and maxillofacial tumours managed in children <19 years from January 2011 to December 2015. Results: Two hundred and twenty-two tumours were noted in all age groups during the study duration and 75 (33.8% of these occurred in children and adolescents. A total of 45 (60% males and thirty (40% females constitute the patient population with a male to female ratio of 1.5:1. There are 32 (42.7% benign tumours and 43 (57.3% malignant tumours. Burkitt's lymphoma was the most common malignant tumour in 24 cases (55.8%, whereas pleomorphic adenoma was the most common benign soft tissue tumour in 4 cases (30.8% and fibro-osseous lesions were the most common benign jaw tumours in 10 cases (52.6%. Chemotherapy alone was the treatment modality in 24 cases of malignant tumour whereas 13 cases had combination chemotherapy and irradiation. Conclusions: Our findings established that oral and maxillofacial tumours in children and adolescents are quite common in Sokoto, Northwest region of Nigeria, particularly the malignant types. There is a need for improved universal healthcare insurance for all citizens to adequately manage these children effectively.

  3. To evaluate the efficacy of biodegradable plating system for fixation of maxillofacial fractures: A prospective study

    OpenAIRE

    Bali, Rishi K.; Sharma, Parveen; Jindal, Shalu; Gaba, Shivani

    2013-01-01

    Aims: The present study was undertaken to evaluate the efficacy of biodegradable plating system for fixation of maxillofacial fractures and to study the morbidity associated with the use of biodegradable plates and screws. Materials and Methods: This prospective study consisted of 10 patients with maxillofacial fractures requiring open reduction and internal fixation. Fractures with infection, comminuted and pathological fractures were excluded. All were plated with biodegradable system (Inio...

  4. Portfolio: A Comprehensive Method of Assessment for Postgraduates in Oral and Maxillofacial Surgery

    OpenAIRE

    Kadagad, Poornima; Kotrashetti, S. M.

    2012-01-01

    Post graduate learning and assessment is an important responsibility of an academic oral and maxillofacial surgeon. The current method of assessment for post graduate training include formative evaluation in the form of seminars, case presentations, log books and infrequently conducted end of year theory exams. End of the course theory and practical examination is a summative evaluation which awards the degree to the student based on grades obtained. Oral and maxillofacial surgery is mainly a...

  5. Sports-specific injuries.

    Science.gov (United States)

    Plancher, K D; Minnich, J M

    1996-04-01

    Injuries to the upper extremities can happen in any sport. Injury patterns are common to specific sports. Understanding which injuries occur with these sports allows the examiner to diagnose and treat the athlete easily. This article reviews some of the injuries common in sports such as bicycling, golf, gymnastics, martial arts, racquet sports, and weightlifting.

  6. How useful is 3D printing in maxillofacial surgery?

    Science.gov (United States)

    Louvrier, A; Marty, P; Barrabé, A; Euvrard, E; Chatelain, B; Weber, E; Meyer, C

    2017-09-01

    3D printing seems to have more and more applications in maxillofacial surgery (MFS), particularly since the release on the market of general use 3D printers several years ago. The aim of our study was to answer 4 questions: 1. Who uses 3D printing in MFS and is it routine or not? 2. What are the main clinical indications for 3D printing in MFS and what are the kinds of objects that are used? 3. Are these objects printed by an official medical device (MD) manufacturer or made directly within the department or the lab? 4. What are the advantages and drawbacks? Two bibliographic researches were conducted on January the 1st, 2017 in PubMed, without time limitation, using "maxillofacial surgery" AND "3D printing" for the first and for the second "maxillofacial surgery" AND "computer-aided design" AND "computer-aided manufacturing" as keywords. Articles in English or French dealing with human clinical use of 3D printing were selected. Publication date, nationality of the authors, number of patients treated, clinical indication(s), type of printed object(s), type of printing (lab/hospital-made or professional/industry) and advantages/drawbacks were recorded. Two hundred and ninety-seven articles from 35 countries met the criteria. The most represented country was the People's Republic of China (16% of the articles). A total of 2889 patients (10 per article on average) benefited from 3D printed objects. The most frequent clinical indications were dental implant surgery and mandibular reconstruction. The most frequently printed objects were surgical guides and anatomic models. Forty-five percent of the prints were professional. The main advantages were improvement in precision and reduction of surgical time. The main disadvantages were the cost of the objects and the manufacturing period when printed by the industry. The arrival on the market of low-cost printers has increased the use of 3D printing in MFS. Anatomic models are not considered to be MDs and do not have

  7. American Society of Maxillofacial Surgeons 2006 to 2016: Another Decade of Excellence in Education and Research.

    Science.gov (United States)

    Doumit, Gaby; Totonchi, Ali; Wexler, Andy; Gosain, Arun K

    2017-09-01

    Over the past 10 years, the American Society of Maxillofacial Surgeons (ASMS) has continued to advance to meet its mission of being the premier organization to represent maxillofacial and pediatric plastic surgery in the United States. These advances are focused on education of its members, to include the American Society of Maxillofacial Surgeons basic course, the preconference symposium, the annual meeting, two basic maxillofacial courses per year, advanced maxillofacial courses, a boot camp for craniofacial fellows, a cleft course, quarterly webinars, sponsored fellowships, a visiting professorship, and the ASMS journal. In addition, the ASMS has continued to advance as the premier national organization representing maxillofacial and pediatric plastic surgery in the United States, thereby positioning the organization as a primary advocate for these surgical specialties. Outreach of the ASMS has grown over the past decade and now includes representatives to the American Society of Plastic Surgeons/Plastic Surgery Foundation, the American Board of Plastic Surgeons, the American Medical Association, and most recently a seat as a governor with the American College of Surgeons. The ASMS has also initiated an annual Summer Leadership Seminar to explore topics of relevance in a changing health care environment. The present report outlines the major initiatives of the ASMS over the past 10 years.

  8. Trampoline injuries.

    Science.gov (United States)

    Nysted, M; Drogset, J O

    2006-12-01

    To describe the mechanism, location and types of injury for all patients treated for trampoline-associated injuries at St Olav's University Hospital, Trondheim, Norway, from March 2001to October 2004. Patients were identified from a National Injury Surveillance System. All patients were asked to complete a standard questionnaire at their first visit at the hospital. Most data were recorded prospectively, but data on the mechanism of injury, the number of participants on the trampoline at the time of injury, adult supervision and whether the activity occurred at school or in another organised setting were collected retrospectively. A total of 556 patients, 56% male and 44% female, were included. The mean age of patients was 11 (range 1-62) years. 77% of the injuries occurred on the body of the trampoline, including falls on to the mat, collisions with another jumper, falls on to the frame or the springs, and performing a somersault, whereas 22% of the people fell off the trampoline. In 74% of the cases, more than two people were on the trampoline, with as many as nine trampolinists noted at the time of injury. For children Trampolining can cause serious injuries, especially in the neck and elbow areas of young children. The use of a trampoline is a high-risk activity. However, a ban is not supported. The importance of having safety guidelines for the use of trampolines is emphasised.

  9. Paragliding injuries.

    Science.gov (United States)

    Krüger-Franke, M; Siebert, C H; Pförringer, W

    1991-06-01

    Regulations controlling the sport of paragliding were issued in April 1987 by the German Department of Transportation. The growing popularity of this sport has led to a steady increase in the number of associated injuries. This study presents the incidence, localization and degree of injuries associated with paragliding documented in Germany, Austria and Switzerland. The 283 injuries suffered by 218 paragliders were documented in the period 1987-1989: 181 occurred during landing, 28 during starting procedures and nine during flight. The mean patient age was 29.6 years. There were 34.9% spinal injuries, 13.4% upper extremity injuries and 41.3% lower limb injuries. Over half of these injuries were treated surgically and in 54 instances permanent disability remained. In paragliding the lower extremities are at greatest risk of injury during landing. Proper equipment, especially sturdy footwear, exact training in landing techniques as well as improved instruction in procedures during aborted or crash landings is required to reduce the frequency of these injuries.

  10. The reliability of tablet computers in depicting maxillofacial radiographic landmarks

    Energy Technology Data Exchange (ETDEWEB)

    Tadinada, Aditya; Mahdian, Mina; Sheth, Sonam; Chandhoke, Taranpreet K.; Gopalakrishna, Aadarsh; Potluri, Anitha; Yadav, Sumit [University of Connecticut School of Dental Medicine, Farmington (United States)

    2015-09-15

    This study was performed to evaluate the reliability of the identification of anatomical landmarks in panoramic and lateral cephalometric radiographs on a standard medical grade picture archiving communication system (PACS) monitor and a tablet computer (iPad 5). A total of 1000 radiographs, including 500 panoramic and 500 lateral cephalometric radiographs, were retrieved from the de-identified dataset of the archive of the Section of Oral and Maxillofacial Radiology of the University Of Connecticut School Of Dental Medicine. Major radiographic anatomical landmarks were independently reviewed by two examiners on both displays. The examiners initially reviewed ten panoramic and ten lateral cephalometric radiographs using each imaging system, in order to verify interoperator agreement in landmark identification. The images were scored on a four-point scale reflecting the diagnostic image quality and exposure level of the images. Statistical analysis showed no significant difference between the two displays regarding the visibility and clarity of the landmarks in either the panoramic or cephalometric radiographs. Tablet computers can reliably show anatomical landmarks in panoramic and lateral cephalometric radiographs.

  11. Roentgenographic study on maxillofacial soft tissue in the mixed dentition

    International Nuclear Information System (INIS)

    Lee, Jai Hei; Ahn, Hyung Kyu

    1977-01-01

    The purpose of this study was to obtain the cephalometric maxillofacial soft tissue measurements and to define the differences that exist between male and female on the soft tissue profile who had normal occlusion in mixed dentitions. For the object of this study, cephalometric radiographs were obtained from the centric occlusion with the relaxed lip position. Copper filter was designed to obtain both hard and soft tissue structure on the same film. The subjects consist of 100 male and 100 female from 8 to 12.4 years with the normal occlusion and acceptable profiles. The author measured facial depth, vertical height from the cephalometric soft tissue profiles in the mixed dentitions. The significant test was performed to compare male with females. The following results were obtained from the study 1. In facial convexity, much more larger female than that of male. 2. Inclination of the lip posture was more larger in maxilla (male) and in female more larger in the mandible. 3. The thickness of soft tissue was thicker in male, the height of nose was more prominent in female. 4. There were no significant differences in both sexes.

  12. History of the Oral and Maxillofacial Surgery Residency Program at Universidad el Bosque, Bogotá, Colombia.

    Science.gov (United States)

    Castro-Núñez, Jaime

    2012-01-01

    The formal training of oral and maxillofacial surgeons in Colombia started in 1958 at Hospital Sanjos6, thanks to the titanic work of Waldemar Wilhelm, a German-born surgeon who settled in BogotA in 1950. Today there are seven institutions in Colombia that offer residency programs in oral and maxillofacial surgery. The aim of this article is to describe the history of the Oral and Maxillofacial Surgery Residency Program at Universidad El Bosque in Bogota.

  13. Eye Injuries at Work

    Science.gov (United States)

    ... National Standards Institute (ANSI) to meet their eye protection standards. If an eye injury occurs, see an ophthalmologist or go to the emergency room immediately, even if the eye injury appears minor. Delaying medical attention can result in permanent vision ...

  14. Assessment of the effective dose in supine, prone, and oblique positions in the maxillofacial region using a novel combined extremity and maxillofacial cone beam computed tomography scanner

    NARCIS (Netherlands)

    Koivisto, J.; Wolff, J.; Järnstedt, J.; Dastidar, P.; Kortesniemi, M.

    2014-01-01

    Objective The objectives of this study were to assess the organ and effective doses (International Commission on Radiological Protection [ICRP] 103 standard) resulting from supine, prone, and oblique phantom positions in the maxillofacial region using a novel cone beam computed tomography (CBCT)

  15. Badminton injuries.

    Science.gov (United States)

    Krøner, K; Schmidt, S A; Nielsen, A B; Yde, J; Jakobsen, B W; Møller-Madsen, B; Jensen, J

    1990-01-01

    In a one year period, from 1 January 1986 to 31 December 1986, 4303 patients with sports injuries were treated at Aarhus Amtssygehus and Aarhus Kommunehospital. The mean age was 21.6 years (range 7-72 years) and 2830 were men. Two hundred and seventeen badminton injuries occurred in 208 patients (136 men) with a mean age of 29.6 years (range 7-57 years), constituting 4.1 percent of all sport injuries in Aarhus. Joints and ligaments were injured in 58.5 percent of the patients, most frequently located in the lower limb and significantly more often among patients younger than 30 years of age. Muscle injury occurred in 19.8 percent of the patients. This type of injury was significantly more frequent among patients older than 30 years of age. Most injuries were minor. However, 6.8 percent of the patients were hospitalized and 30.9 percent received additional treatment by a physician. As the risk of injury varies with age, attempts to plan training individually and to institute prophylactic measures should be made. PMID:2078802

  16. [Sports injuries of the face].

    Science.gov (United States)

    Chrzavzez, G; Chrzavzez, J P; D'Erceville, T; Kharrat, N; Barbillon, C; Pilz, F

    1984-01-01

    Of 249 patients with facial injuries admitted to the Department of Stomatology and Maxillofacial Surgery, Hôpital Bel Air, Thionville, France, between 1981 and 1982, 45 (18%) were cases of injury from sporting activities. The particular characteristics of the latter lesions were their predominance in males, their increased seasonal frequency in spring and early summer, the high incidence of damage to the nasal pyramid and maxillomalar complex, and the fact that the most implicated sport was football (71% of cases). Whereas most accidents resulted in relatively minor lesions, three cases--including two from riding--involved severe, complex injuries comparable to those seen in certain car accidents. Findings in this series confirm the natural "bumper" property of the face. Emphasis is placed on the importance of well-conducted training, and the need to eliminate consideration of sport as a means for expressing aggressiveness that is not always possible in daily life.

  17. Whiplash injuries.

    Science.gov (United States)

    Malanga, Gerard; Peter, Jason

    2005-10-01

    Whiplash injuries are very common and usually are associated with rear-end collisions. However, a whiplash injury can be caused by any event that results in hyperextension and flexion of the cervical spine. These injuries are of serious concern to all consumers due to escalating cost of diagnosis, treatment, insurance, and litigation. Most acute whiplash injury cases respond well to conservative treatments, which result in resolution of symptoms usually within weeks to a few months after the injury occurred. Chronic whiplash injuries often are harder to diagnose and treat and often result in poor outcomes. Current research shows that various structures in the cervical spine receive nociceptive innervation and potentially may be the cause of chronic pain symptoms. One potential pain generator showing promise is the facet or zygapophyseal joints. Various researchers have proven that these joints are injured during whiplash injuries and that diagnosis and temporary pain relief can be obtained with facet joint injections. The initial evaluation of any patient should follow an organized and stepwise approach, and more serious causes of neck pain must first be ruled out through the history, physical examination, and diagnostic testing. Treatment regimens should be evidence-based, focusing on treatments that have proven to be effective in treating acute and chronic whiplash injuries.

  18. [Doctor Albéric Pont (1870-1960). Dental surgeon, doctor and creator of the center of maxillo-facial surgery of Lyon in 1914].

    Science.gov (United States)

    Riaud, Xavier

    2008-01-01

    As Stomatologist and Dental Surgeon Albéric Pont founded with six other Dental Surgeons the School of Dentistry in Lyons which he ran for a long time. When he enlisted in the French Army in 1914 he soon became aware of the extent of facial damage that occurred among the injured soldiers. His subsequent decision was to create and run a Centre for maxillofacial surgery in Lyons. He died in 1960 and left a significant scientific work as well as technical elements of surgery, dental index and devices which still bear his name.

  19. Maxillectomy defects - to reconstruct or not? Pilot survey of Nigerian oral and maxillofacial surgeons

    Directory of Open Access Journals (Sweden)

    Abdurrazaq Olanrewaju Taiwo

    2017-01-01

    Full Text Available Background: The choice of reconstruction options for maxillectomy defects varies significantly. Factors affecting it range from the type of defect to the surgeon's expertise. This study aims to evaluate the practice of Nigerian Oral and Maxillofacial surgeons in the reconstruction of post-maxillectomy defects. Materials and Methods: The survey was conducted by use of questionnaires administered at the annual scientific meeting of the oral and maxillofacial surgeons of Nigeria in Ibadan 2012. Results: A response rate of 66.7% was achieved. All of our respondents are consultant oral and maxillofacial surgeons, 80% of whom practice in a teaching hospital. All but one of them perform maxillectomies, however only 25% of them offer surgical reconstruction of the resulting defects to patients. Flaps have been used by 25% of the respondents, while none of them has employed microvascular reconstruction. Prosthetic rehabilitation of patients is pervasive among the respondents. Conclusion: Maxillectomy defects have far-reaching consequences on patients' quality of life and attempts should be made to reconstruct such defects. Although maxillectomy is a commonly performed procedure among oral and maxillofacial surgeons in Nigeria, especially for malignancies of the oral and paranasal sinuses, surgical reconstruction of resulting defects is not so frequently done. Microvascular surgery, which is becoming a frequently utilized option among surgeons in developed nations, is still infrequently used in our environment. There is a need for oral and maxillofacial surgeons in our climes to improve their skills so as to increase the range of reconstructive options offered.

  20. Publication bias in oral and maxillofacial surgery journals: an observation on published controlled trials.

    Science.gov (United States)

    Pitak-Arnnop, Poramate; Sader, Robert; Rapidis, Alexander D; Dhanuthai, Kittipong; Bauer, Ute; Herve, Chistian; Hemprich, Alexander

    2010-01-01

    Publication bias (PB) diminishes the full distribution of research, distorts and discredits the scientific record, and thus compromises evidence-based practice. The objective of this study was to analyse published controlled trials with regard to PB in leading oral and maxillofacial surgery (OMS) journals. All controlled trials published in the International Journal of Oral and Maxillofacial Surgery, Journal of Cranio-Maxillofacial Surgery, Journal of Oral and Maxillofacial Surgery, and British Journal of Oral and Maxillofacial Surgery in 2008 were analysed for a primary outcome, country of authors, sample size, gender of the first author, funding source and location of the study. Of 952 published articles, 53 controlled trials (5.7%) were identified. The OMS journals preferentially published controlled trials with a positive outcome (77.4%) and from high-income countries (73.6%). Single-centred trials (86.8%) with low sample size (njournals should establish measures to eliminate PB to uphold scientific integrity. However, this study was an observation based on the published articles. An analysis of all submitted manuscripts would provide more accurate estimates of PB. Ethical considerations on PB are also discussed.

  1. Reporting of ethical protection in recent oral and maxillofacial surgery research involving human subjects.

    Science.gov (United States)

    Pitak-Arnnop, P; Sader, R; Hervé, C; Dhanuthai, K; Bertrand, J-Ch; Hemprich, A

    2009-07-01

    This retrospective observational study investigated the frequency of reporting ethical approval and informed consent in recently published oral and maxillofacial surgery (OMS) research involving human subjects. All research involving human subjects published in the International Journal of Oral and Maxillofacial Surgery, Journal of Oral and Maxillofacial Surgery, British Journal of Oral and Maxillofacial Surgery, and Journal of Cranio-Maxillofacial Surgery during January to June 2005-2007 were analysed for disclosure of ethical approval by a local ethical committee and obtaining informed consent from the subjects. 534 articles were identified; ethical approval was documented in 118 (22%) and individual patient consent in 135 (25%). 355 reports (67%) did not include a statement on ethical approval or informed consent and only 74 reports (14%) disclosed statements of both. Ethical documentation in retrospective and observational studies was scant; 12% of randomised controlled trials and 38% of non-random trials did not report both of ethical protections. Most recent OMS publications involving humans failed to mention ethical review or subjects' consent. Authors must adhere to the international research ethics guidelines and journal instructions, while editors should play a gatekeeper role to protect research participants, uphold scientific integrity and maintain public trust in the experimental process and OMS profession.

  2. Frequency and types of fractures in maxillofacial traumas. Assessment using MDCT with multiplanar and 3D reconstructions

    International Nuclear Information System (INIS)

    Tomich, G.; Baigorria, P.; Orlando, N.; Mejico, M.; Costamagna, C.; Villavicencio, R.

    2011-01-01

    Introduction: Maxillofacial trauma (MFT) is a common reason for attendance at Emergency Departments. The complex anatomy of the facial bones requires multiplanar imaging techniques for a proper evaluation. Objectives. To describe frequency and types of fractures in a series of patients with MFT evaluated by multi-slice computed tomography (MDCT) with multiplanar and 3D reconstructions. Materials and Methods: Facial bone CTs ordered for MFT by the Emergency Department from June 2008 to December 2009 were retrospectively reviewed. The following data were obtained: age, gender, cause of trauma, presence and type of fractures. Patients were evaluated with an 8-channel MDCT. Multiplanar reconstructions were performed in all cases using high resolution bone window and soft tissue window, as well as 3D reconstructions. Results: One-hundred and thirty-seven CTs were performed for MFT: 78 (57%) showed 131 fractures. Of these 78 patients, 52 (66%) were males and 26 (34%) were females; mean age 33 years old (range: 14-90 yrs.). Causes: 58 % were injuries from traffic accidents; 24% were injuries from fights; 13% were sport injuries; and 7% were due to miscellaneous etiologies. Type and frequency of fractures: 18.3% were orbital floor fractures, 16% were maxillary sinus fractures, 15.3% were nasal fractures, 13% were jaw fractures, 9.2% were orbital fractures, and 12.3% were fractures of the zygomatic-malar complex; two cases of Le Fort II-III fractures were also observed. Conclusions: Fractures were more common in males, in the age range from 15 to 35 years old. Most fractures, and the most complex ones, were caused by traffic accidents. The most common fracture, either isolated or associated with other fractures, was the orbital floor fracture. (authors)

  3. Cold injuries.

    Science.gov (United States)

    Kruse, R J

    1995-01-01

    There are two categories of cold injury. The first is hypothermia, which is a systemic injury to cold, and the second is frostbite, which is a local injury. Throughout history, entire armies, from George Washington to the Germans on the Russian Front in World War II, have fallen prey to prolonged cold exposure. Cold injury is common and can occur in all seasons if ambient temperature is lower than the core body temperature. In the 1985 Boston Marathon, even though it was 76 degrees and sunny, there were 75 runners treated for hypothermia. In general, humans adapt poorly to cold exposure. Children are at particular risk because of their relatively greater surface area/body mass ratio, causing them to cool even more rapidly than adults. Because of this, the human's best defense against cold injury is to limit his/her exposure to cold and to dress appropriately. If cold injury has occurred and is mild, often simple passive rewarming such as dry blankets and a warm room are sufficient treatment.

  4. Throwing Injuries of the Shoulder.

    Science.gov (United States)

    McCue, Frank C., III; and Others

    The majority of shoulder injuries occurring in throwing sports involve the soft tissue structures. Injuries often occur when the unit is overstretched to a point near its greatest length, involving the elastic tissues. The other injury mechanism involves the contractural unit of the muscle, which occurs near the midpoint of contractions, involving…

  5. Bibliometric analysis of oral and maxillofacial cytology-related articles published in a cytology journal from India.

    Science.gov (United States)

    Shamim, Thorakkal

    2018-01-01

    There is a paucity of information about the oral and maxillofacial cytology-related articles published in a cytology journal. Journal of Cytology (JOC) is the official publication of Indian Academy of Cytologists. This study aimed to audit the oral and maxillofacial cytology-related articles published in JOC from 2007 to 2015 over a 9-year period. Bibliometric analysis of issues of JOC from 2007 to 2015 was performed using web-based search. The articles published were analyzed for type of article and individual topic of oral and maxillofacial cytology. The articles published were also checked for authorship trends. Of the total 93 published articles related to oral and maxillofacial cytology, original articles (43) and case reports (33) contribute the major share. The highest number of oral and maxillofacial cytology-related articles was published in 2014 with 17 articles and the least published year was 2010 with three articles. Among the oral and maxillofacial cytology-related articles published in JOC, diseases of salivary gland (26) followed by oral exfoliated cells (17), soft tissue tumors (7), round cell tumors (6) and spindle cell neoplasms (5) form the major attraction of the contributors. The largest numbers of published articles related to oral and maxillofacial cytology were received from Postgraduate Institute of Medical Education and Research, Chandigarh (5), and Jawaharlal Nehru Medical College, Aligarh (5). This paper may be considered as a baseline study for the bibliometric information regarding oral and maxillofacial cytology-related articles published in India.

  6. Multiple Synchronous Central Giant Cell Granulomas of the Maxillofacial Region: A Case Report

    International Nuclear Information System (INIS)

    Kang, Min Seok; Kim, Hak Jin

    2010-01-01

    Multifocal central giant cell granulomas (CGCG) in the maxillofacial region are suggestive of systemic disease such as hyperparathyroidism or an inherited syndrome such as Noonan-like multiple giant cell lesion syndrome. Only 5 cases of multifocal CGCGs in the maxillofacial region without any concomitant systemic disease have currently been reported. We report here on an unusual case of 17-year-old man who presented with multifocal CGCGs of the bilateral posterior mandible and right maxilla and he was without any concomitant systemic disease

  7. African Americans in Oral and Maxillofacial Surgery: Factors Affecting Career Choice, Satisfaction, and Practice Patterns.

    Science.gov (United States)

    Criddle, Thalia-Rae; Gordon, Newton C; Blakey, George; Bell, R Bryan

    2017-12-01

    There are few data available on the experience of minority surgeons in the field of oral and maxillofacial surgery (OMS). Therefore, the purpose of this study was to 1) explore factors that contribute to African Americans choosing OMS as a career, 2) examine satisfaction among minority oral and maxillofacial surgeons with the residency application and training process, 3) report on practice patterns among minority oral and maxillofacial surgeons, and 4) identify perceived bias for or against minority oral and maxillofacial surgeons in an attempt to aid the efforts of OMS residency organizations to foster diversity. A 19-item survey was sent to 80 OMS practitioners by use of information from the mailing list of the National Society of Oral and Maxillofacial Surgeons, an American Association of Oral and Maxillofacial Surgeons-affiliated organization. All surveys were sent by mail and were followed by a reminder mailing after 8 weeks. Responses returned within 16 weeks were accepted for analysis. Of the 80 mailed surveys, 41 were returned within the 16-week parameter, representing a return rate of 51%. Most of the minority surgeon respondents were married men with a mean age of 60 years who worked as private practitioners. Most respondents practiced on the eastern and western coasts of the United States. Exposure in dental school was the most important factor in selecting OMS as a specialty. Location and prestige were the most important factors in selecting a residency program. Most respondents reported that race did not affect the success of their application to a residency program and did not currently affect the success of their practice. However, 25 to 46% of participants experienced race-related harassment, and 48 to 55% of participants believed there was a bias against African Americans in OMS. Our data suggest that a substantial number of minority oral and maxillofacial surgeons subjectively perceive race-based bias in their career, although it does not

  8. C-arm fluoroscopy: a reliable modality for retrieval of foreign bodies in the maxillofacial region.

    Science.gov (United States)

    Pandyan, Deepak; Nandakumar, N; Qayyumi, Burhanuddin N; Kumar, Santosh

    2013-11-01

    The anatomic complexity of the maxillofacial region makes the retrieval of foreign bodies a daunting task for the maxillofacial Surgeon. Moreover the inability of 2-dimensional imaging to precisely locate foreign bodies makes it challenging. The anatomic proximity of critical structures and esthetic considerations limits the access and thus poses a greater challenge for the surgeon in cases of foreign body retrieval. Hereby we propose a simple technique and a case report to support, the retrieval of small (mobile C arm Fluoroscopy and a needle triangulation method to precisely locate a loosened miniplate screw in the mandibular angle region.

  9. [Oral maxillofacial-head and neck tumor and holistic integrative medicine].

    Science.gov (United States)

    Zhang, C P

    2017-08-09

    The advance of clinical diagnosis and treatment in oral and maxillofacial-head and neck tumors has been through the process of specialization and multidisciplinary cooperation. In most cases, a single discipline cannot meet the requirements of diagnosis and treatment, which needs the cooperation of oral and maxillofacial surgery, otolaryngology and oncology approach and therapeutic method such as surgery, radiotherapy and chemotherapy. Holistic integrative medicine aims at integrating the most effective clinical practice experience and patients' individual situation and prognosis, establishing new medical mode conforming to the modern concept and fulfilling the medical system adapting to the specific characteristics of the diseases.

  10. Tattoos: could they be used to advantage as a medical alert in oral and maxillofacial surgery?

    Science.gov (United States)

    Colbert, S D; Brennan, P A

    2017-04-01

    Many publications have addressed the medical complications of tattoos, but to our knowledge there are no reports of their use to alert people in our field of potentially dangerous conditions. We present a new way to inform oral and maxillofacial colleagues about patients with a history of malignant hyperthermia (or any other life-threatening medical problem) and discuss the potential advantages and disadvantages of medical alert tattoos. Copyright © 2016 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  11. Multiple Synchronous Central Giant Cell Granulomas of the Maxillofacial Region: A Case Report

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Min Seok; Kim, Hak Jin [Pusan National University Hospital, Busan (Korea, Republic of)

    2010-01-15

    Multifocal central giant cell granulomas (CGCG) in the maxillofacial region are suggestive of systemic disease such as hyperparathyroidism or an inherited syndrome such as Noonan-like multiple giant cell lesion syndrome. Only 5 cases of multifocal CGCGs in the maxillofacial region without any concomitant systemic disease have currently been reported. We report here on an unusual case of 17-year-old man who presented with multifocal CGCGs of the bilateral posterior mandible and right maxilla and he was without any concomitant systemic disease

  12. The role of diagnostic ultrasound as a new diagnostic aid in oral and maxillofacial surgery

    Directory of Open Access Journals (Sweden)

    Siva Subramaniyam Venkataraman

    2012-01-01

    Full Text Available Only very few studies have been done in the past to evaluate the usefulness and limitations of ultrasonography in oral and maxillofacial surgery. This study, though in an embryonic stage, has been done to bring this technique to limelight and to put forth the importance of its use and limitations in the branch of oral surgery. The purpose of this study was to investigate and study the characteristic pattern of the oral tissues on gray scale ultrasonography and to assess the practical applicability of this new diagnostic technique in diagnosing various tissue pathologies in the field of oral and maxillofacial surgery.

  13. An Assessment of Oral and Maxillofacial Vietnam War Casualties 10-15 Years Post-Injury.

    Science.gov (United States)

    1986-12-20

    the Depression (D) and Schizophrenia (Sc) scales. Furthermore, there are borderline elevations on the Hypochondriasis , Psychopathic Deviate and...Hysteria, Psychopathic Deviate, and Schizophrenia are the scales with frequent clinical elevations, with Hypochondriasis , Depression, Psychasthenia, and...hypomanic patients, exces- sive somatic complaints and depression. Twenty-three subjects reported very significant patterns of psychopathology. They had

  14. Influence of positions of the incidence and severity of maxillofacial ...

    African Journals Online (AJOL)

    The most common vehicle involved in RTA was the mini bus, 34.3% followed by motorcycle, 26.5%. Middle seat passengers, drivers and motorcycle passengers and riders sustained more and severe injuries during crashes. The mandible was more frequently fractured at the symphysis (24.6%) than at any other site while ...

  15. Assessment of Ankle Injuries

    Science.gov (United States)

    Mai, Nicholas; Cooper, Leslie

    2009-01-01

    School nurses are faced with the challenge of identifying and treating ankle injuries in the school setting. There is little information guiding the assessment and treatment of these children when an injury occurs. It is essential for school nurses to understand ankle anatomy, pathophysiology of the acute ankle injury, general and orthopedic…

  16. [Acute kidney injury

    NARCIS (Netherlands)

    Hageman, D.; Kooman, J.P.; Lance, M.D.; van Heurn, L.W.; Snoeijs, M.G.

    2012-01-01

    - 'Acute kidney injury' is modern terminology for a sudden decline in kidney function, and is defined by the RIFLE classification (RIFLE is an acronym for Risk, Injury, Failure, Loss and End-stage kidney disease).- Acute kidney injury occurs as a result of the combination of reduced perfusion in the

  17. Injuries in synchronized skating.

    Science.gov (United States)

    Dubravcic-Simunjak, S; Kuipers, H; Moran, J; Simunjak, B; Pecina, M

    2006-06-01

    Synchronized skating is a relatively new competitive sport and data about injuries in this discipline are lacking. Therefore the purpose of this study was to investigate the frequency and pattern of acute and overuse injuries in synchronized skaters. Before and during the World Synchronized Skating Championship 2004, a questionnaire inquiring about the frequency of injuries in this skating discipline was given to 23 participating teams. A total of 514 women and 14 men senior skaters completed the questionnaires (100 % response). Two hundred and eighteen (42.4 %) female and 6 (42.9 %) male skaters had suffered from acute injuries during their synchronized skating career. As some skaters had suffered from more than one injury, the total number of acute injuries in females was 398 and in males 14. In female skaters 19.8 % of acute injuries were head injuries, 7.1 % trunk, 33.2 % upper, and 39.9 % lower extremity injuries. In male skaters 14.3 % were head injuries, 28.6 % upper, and 57.1 % lower extremity injuries, with no report of trunk injuries. Sixty-nine female and 2 male skaters had low back problems and 112 female and 2 male skaters had one or more overuse syndromes during their skating career. Of 155 overuse injuries in female skaters, 102 (65.8 %) occurred during their figure skating career, while 53 injuries (34.2 %) only occurred when they skated in synchronized skating teams. In male skaters, out of 5 overuse injuries, 4 (80 %) occurred in their figure skating career, while 1 (20 %) occurred during their synchronized skating career. Out of the total of 412 injuries, 338 (82 %) occurred during on-ice practice, while 74 (18 %) happened during off-ice training. Ninety-one (26.9 %) acute injures occurred while practicing individual elements, and 247 (73.1 %) on-ice injuries occurred while practicing different team elements. We conclude that injuries in synchronized skating should be of medical concern due to an increasing number of acute injuries, especially

  18. Trauma: Spinal Cord Injury.

    Science.gov (United States)

    Eckert, Matthew J; Martin, Matthew J

    2017-10-01

    Injuries to the spinal column and spinal cord frequently occur after high-energy mechanisms of injury, or with lower-energy mechanisms, in select patient populations like the elderly. A focused yet complete neurologic examination during the initial evaluation will guide subsequent diagnostic procedures and early supportive measures to help prevent further injury. For patients with injury to bone and/or ligaments, the initial focus should be spinal immobilization and prevention of inducing injury to the spinal cord. Spinal cord injury is associated with numerous life-threatening complications during the acute and long-term phases of care that all acute care surgeons must recognize. Published by Elsevier Inc.

  19. Upper extremity golf injuries.

    Science.gov (United States)

    Cohn, Michael A; Lee, Steven K; Strauss, Eric J

    2013-01-01

    Golf is a global sport enjoyed by an estimated 60 million people around the world. Despite the common misconception that the risk of injury during the play of golf is minimal, golfers are subject to a myriad of potential pathologies. While the majority of injuries in golf are attributable to overuse, acute traumatic injuries can also occur. As the body's direct link to the golf club, the upper extremities are especially prone to injury. A thorough appreciation of the risk factors and patterns of injury will afford accurate diagnosis, treatment, and prevention of further injury.

  20. Body dysmorphic disorder screening in maxillofacial outpatients presenting for orthognathic surgery

    NARCIS (Netherlands)

    Vulink, N. C. C.; Rosenberg, A.; Plooij, J. M.; Koole, R.; Bergé, S. J.; Denys, D.

    2008-01-01

    Body dysmorphic disorder (BDD) is a severe psychiatric disease with delusions about defects in appearance for which patients seek surgical help. This is the first European study to determine the half-year prevalence of BDD in a maxillofacial outpatient clinic. A total of 160 patients with

  1. [Evaluation of flipped classroom teaching model in undergraduates education of oral and maxillofacial surgery].

    Science.gov (United States)

    Cai, Ming; Cao, Xia; Fang, Xiao; Wang, Xu-dong; Zhang, Li-li; Zheng, Jia-wei; Shen, Guo-fang

    2015-12-01

    Flipped classroom is a new teaching model which is different from the traditional teaching method. The history and characteristics of flipped classroom teaching model were introduced in this paper. A discussion on how to establish flipped classroom teaching protocol in oral and maxillofacial surgery education was carried out. Curriculum transformation, construction of education model and possible challenges were analyzed and discussed.

  2. Pain management procedures used by dental and maxillofacial surgeons: an investigation with special regard to odontalgia

    NARCIS (Netherlands)

    Wirz, Stefan; Wartenberg, Hans Christian; Nadstawek, Joachim

    2005-01-01

    BACKGROUND: Little is known about the procedures used by German dental and maxillofacial surgeons treating patients suffering from chronic orofacial pain (COP). This study aimed to evaluate the ambulatory management of COP. METHODS: Using a standardized questionnaire we collected data of dental and

  3. Spark erosion implant prosthetics in the management of an acquired maxillofacial defect.

    Science.gov (United States)

    Bloem, T J; Baxter, W D; Vivas, J

    1996-03-01

    The concept and use of spark erosion (EDM) prosthetics in implant prosthodontics has been described and demonstrated in its application to a patient suffering maxillofacial trauma. The advantages and disadvantages of this technology have been discussed for the edification of the restorative and surgical provider.

  4. Epidemiologic analysis and evaluation of complications in 1266 cases with maxillofacial trauma

    Directory of Open Access Journals (Sweden)

    Cenk Demirdover

    2018-01-01

    Full Text Available Introduction: Patients with maxillofacial trauma represent a major group of patients in plastic surgery practice. These traumas are often caused by in-car and noncar road accidents and can result in permanent damages. This study aims at providing an epidemiologic analysis of such cases together with their diagnostic procedures, treatment methods, and postoperative complications. Materials and Methods: A total of 1266 maxillofacial trauma cases that were operated on between 2003 and 2017 were studied, and analyzed for fractured bones, etiology, diagnosis and treatment principles, and complications. Results: The major etiologic factor causing maxillofacial trauma in our study is noncar road accidents (25.5%. Mandible fractures were seen to be the most common type of bone fracture (52.2%. Together with physical examination, computerized tomography and orthopantomography are the diagnostic procedures we effectively use in our clinic. Rigid and semi-rigid fixation with plate and screws are the most frequently used treatment methods, and complication rates are seen to be lower (by 6.6% than those reported in the literature. Conclusion: Careful and meticulous processes, as well as effective follow-up of the patient are required to achieve optimal esthetic and functional results in maxillofacial trauma cases. Such approach can help to reduce the possibility of complications and allow for their early identification, hence early intervention.

  5. Curriculum Planning for Oral and Maxillofacial Surgery Assistant Program. Final Report.

    Science.gov (United States)

    Taylor, Mary Ann

    This project was conducted to develop a curriculum for dental auxiliary training in the dental specialty field of oral and maxillofacial surgery. Research was conducted to identify the major functions performed by an oral surgery assistant and then to organize these functions into an educational program that would provide adequate didactic and…

  6. Dental and Maxillofacial Signs in Aarskog Syndrome: A Review of 3 Siblings and the Literature.

    Science.gov (United States)

    Depeyre, Arnaud; Schlund, Matthias; Gryseleyn, Rémi; Ferri, Joel

    2018-03-29

    Dagfinn Aarksog first described faciodigitogenital syndrome in 1970. Its inheritance is X linked and autosomally recessive. Currently, the diagnosis of Aarskog-Scott syndrome (ASS) is based on clinical dysmorphologic findings and can be supported by genetic examination. This report describes 3 brothers already diagnosed with ASS who were referred for examination of oral and maxillofacial malformations associated with ASS. They presented classic features of ASS, such as digital and genital (shawl scrotum) anomalies. More specifically, in terms of orbitopalpebral malformations, they showed marked ptosis with hypertelorism and antimongoloid palpebral fissure that gave them the characteristic facies. Concerning their oral and maxillofacial malformations, they had dental and skeletal major discrepancies and some dental agenesia. ASS is a rare X-linked syndrome composed of numerous morphologic facial, digital, and genital anomalies. The diagnosis is established genetically with the FGD1 mutation but there is no phenotypic and genotypic correlation with FGD1 mutations. Concerning maxillofacial malformations, maxillary and mandibular hypoplasia with jaw discrepancies can be found, as can teeth anomalies. It seems that these anomalies are widely underestimated. Copyright © 2018 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  7. [Early evaluations of the dental and maxillofacial skeletal lesions in patients treated for neoplasms in childhood].

    Science.gov (United States)

    Bocca, M; Rapalino, M; Miniero, R; Morabito, A; Pomatto, E

    1990-02-01

    The long-term dental and maxillofacial abnormalities generated in patients treated with chemotherapy and chemoradiotherapy for hemopathies and solid tumours in paediatric age have been considered. Abnormalities were observed in tooth structure, dental agenesia and probable changes to the skeleton.

  8. Evaluation of web-based instruction for anatomical interpretation in maxillofacial cone beam computed tomography

    NARCIS (Netherlands)

    Al-Rawi, W.T.; Jacobs, R.; Hassan, B.A.; Sanderink, G.; Scarfe, W.C.

    2007-01-01

    Objectives: To evaluate the effectiveness of a web-based instruction in the interpretation of anatomy in images acquired with maxillofacial cone beam CT (CBCT). Methods: An interactive web-based education course for the interpretation of craniofacial CBCT images was recently developed at our

  9. Dental student perceptions of oral and maxillofacial surgery as a specialty.

    Science.gov (United States)

    Jarosz, Krystian F; Ziccardi, Vincent B; Aziz, Shahid R; Sue-Jiang, Shuying

    2013-05-01

    The specialty of oral and maxillofacial surgery (OMS) encompasses the diagnosis and surgical management of a variety of pathologic, functional, and esthetic conditions of the oral and maxillofacial region. Despite the specialty's prominent role in the field of dentistry, a lack of complete understanding still remains among dental and medical health professionals as to the exact scope and expertise of the oral and maxillofacial surgeon. The present study aimed to analyze a population of dental students' perceptions of OMS as a specialty with respect to treatment rendered, referral patterns, and a general opinion of the specialty as a whole. A survey consisting of 10 multiple-choice questions was compiled and distributed to dental students through an on-line polling service (SurveyMonkey). A total of 5 dental student classes at a single dental school were polled using school-based electronic mail, including the graduating seniors. All answers were kept confidential, and no individual students were identified. The students were not able to retake the survey once completed. The final tallies of the survey results were compiled and submitted for statistical analysis. Statistically significant associations between the year of dental education and student perceptions of OMS were determined. As dental students progress through their undergraduate studies, their perceptions change with regard to the referral of dental implants. Periodontists were found to have statistically significantly greater rates of referral than oral and maxillofacial surgeons from dental students in the fourth year and recent graduates compared with younger dental students from the first, second, and third years for placement of dental implants. Statistically insignificant in terms of a changing dental student perception was the finding that third molar removal was within the domain of the oral and maxillofacial surgeon, as well as the management of cleft lip and palate deformities and mandibular

  10. Four years prospective study of the maxillofacial trauma at a tertiary center in Western Nepal

    Directory of Open Access Journals (Sweden)

    Rajib Khadka

    2014-01-01

    Full Text Available Purpose: This study was conducted to find the epidemiological characteristics of maxillofacial trauma in the Western region of Nepal. Materials and Methods: All the trauma patients attending the Department of Oral and Maxillofacial surgery in 4 years period at a tertiary center in Western Nepal were included in the study. The incidence, prevalence, age and sex distribution, etiologies and types as well as seasonal and daily variation of maxillofacial trauma were studied. Results: Maxillofacial trauma with male (71.55% predominance was seen. Road traffic accidents (RTA, 46.5% were the most common cause, and 41.65% of fracture cases due to RTA were under the influence of alcohol. Accidents were more common on the rural roads (38.9%, and majorities (43.3% were due to motorcycle accidents. They were more common on Friday (36.7% and in winter seasons (51.2%. The mandible fractures (65.85% were more common than midface fractures (53.58% and 19.44% of the fractures were combined fractures. Parasymphysis in mandible (32.16% and zygoma (39.09% in midface were the most common type of fracture. Conclusion: The increased incidence of maxillofacial trauma following RTA under the influence of alcohol noted in this study reveals the need for formulating preventive measures in the Western region of Nepal. Need to aware people to avoid drink and drive proper traffic management, prevention of carrying excessive passengers, especially on the rooftop of vehicles on the highway and disposal of out of date vehicles and timely maintenance of faulty roads is a must.

  11. The Evidence for Brain Injury in Whiplash Injuries

    Directory of Open Access Journals (Sweden)

    Michael P. Alexander

    2003-01-01

    Full Text Available The evidence that brain damage can occur in injuries that produce whiplash is reviewed. The clinical phenomena for the two injuries are the same. Pure whiplash injury implies no, or minimal head contact, but many patients also have head contact against a head rest or the steering wheel or windshield. The relative severity of the neck injury and the head injury distinguishes whiplash from mild closed head injury. If there is brain injury is some patients with whiplash, it, by definition, falls at the mildest end of the concussion spectrum. The relationship between these two injuries is examined.

  12. Knowledge and Awareness of Medical Practitioners of Jazan City towards Oral and Maxillofacial Surgery as a Specialty.

    Science.gov (United States)

    Ali, Fareedi Mukram; Al-Iryani, Ghassan M; Namis, Sultan Mohammed; Hezam, Asma Ali; Swaid, Salma Abdu; Alomar, Anas Esam

    2018-03-15

    In many health services communities the scope of oral and maxillofacial surgery (OMFS) as a discipline is frequently not probably understood. Good awareness towards OMFS among different branches of health services providers is essential for better referral strategies and will be for the benefit of the patient. The cross-sectional study was done using a specially prepared questionnaire distributed randomly to 125 general medical practitioners working in Jazan province. In this questionnaire, there were also some close-ended questions to evaluate awareness regarding a variety of conditions treated by the oral and maxillofacial surgeons. Out of 125 participants, 105 (84%) were aware of the oral and maxillofacial surgery as a speciality branch of dentistry. Only 52 (41.6%) participants were aware of the different treatment modalities coming under the scope of oral and maxillofacial surgery. Also in the referral of cases to the oral and maxillofacial surgeon, 50 (40%) participants referred their oral and maxillofacial region cases to OMS. Tooth removal was the only procedure where most of the medical practitioners knew it is a speciality procedure of the oral and maxillofacial surgeon. For facial fractures, 76 medical practitioners believe it comes under the scope of the orthopaedic surgeon. Similarly, for facial abscesses, 81 and 36 practitioners responded that it is a job of a general surgeon and OMS respectively. There is low awareness toward the scope of oral and maxillofacial surgery in the medical community. Knowledge and awareness of the scope of oral and maxillofacial surgery can improve the success and promptness of delivery of health services.

  13. [COMPARISON OF REPAIR EFFECT BETWEEN CHIMERIC ANTEROLATERAL THIGH FLAP AND SERIES-WOUND FLAPS FOR DEFECT AFTER RESECTION OF ORAL AND MAXILLOFACIAL CANCER].

    Science.gov (United States)

    Yang, Heping; Zhang, Hongwu; Chen, Haidi; Yang, Shuxiong; Wang, Jun; Hu, Dawang

    2016-04-01

    To compare the effectiveness of complex defects repair between using chimeric anterolateral thigh flap and series-wound flaps after resection of oral and maxillofacial cancer. After resection of oral and maxillofacial cancer, defect was repaired with chimeric anterolateral thigh flap in 39 patients between January 2011 and July 2014 (chimeric anterolateral thigh flap group); and defect was repaired with series-wound flaps in 35 patients between January 2009 and December 2010 (series-wound flaps group). There was no significant difference in gender, age, duration of disease, tumor type, tumor staging, defect location, and defect area between 2 groups (P > 0.05). The operation time, flap harvesting and microvascular anastomosis time, stomach tube extraction time, and oral feeding time were recorded and compared between 2 groups, and postoperative complications were observed; the effectiveness was evaluated according to clinical efficacy evaluation table of bone and soft tissue defects reconstruction surgery in oral and maxillofacial region. Vascular crisis occurred in 2 cases of chimeric anterolateral thigh flap group, and 4 cases of series-wound flaps group. Partial necrosis appeared at distal end of a series-wound flaps, and oral fistula and infection developed in 3 series-wound flaps. The other flaps and the grafted skin at donor site survived; wounds at recipient site healed by first intention. The operation time, stomach tube extraction time, and oral feeding time of chimeric anterolateral thigh flap group were significantly shorter than those of series-wound flaps group (P oral closure function, chew, language performance, and swallowing scores of the chimeric anterolateral thigh-flap group were significantly better than those of the series-wound flaps group (P oral cavity holding water test, and occlusion scores between the 2 groups (P > 0.05). Using chimeric anterolateral thigh flap for defect repair after resection of oral and maxillofacial cancer can

  14. Work-related traumatic dental injuries: Prevalence, characteristics and risk factors.

    Science.gov (United States)

    Ugolini, Alessandro; Parodi, Giovanni Battista; Casali, Claudia; Silvestrini-Biavati, Armando; Giacinti, Flavio

    2018-02-01

    The prevalence of work-related oral trauma is underestimated because minor dental injuries are often not reported in patients with several injuries in different parts of the body. In addition, little data are available regarding their characteristics. The aim of this epidemiological study was to determine the prevalence, types, and characteristics of occupational traumatic dental injuries (TDIs) in a large working community. Work-related TDIs that occurred during the period between 2011 and 2013 in the District of Genoa (Northwest of Italy, 0.86 million inhabitants) were analyzed. Patients' data were obtained from the National Institute for Insurance against Accidents at Work database. During the 2 year period, 112 TDIs (345 traumatized teeth) were recorded. The prevalence was 5.6‰ of the total amount of occupational trauma. The highest prevalence was found in the fourth and fifth decades of life (OR=3.6, P construction/farm/factory workers and craftsmen were 48%. TDIs involved only teeth and surrounding tissue in 66% of cases, or in combination with another maxillofacial injury in 34%. They were statistically associated with construction/farm/factory workers group (Chi squared P cases, subluxation/luxation in 10.7%, avulsion in 9%, root fracture in 3.8%, and concussion in 3.5%. Thirty-two subjects (28.6%, 133 teeth, OR=4.3, P < .001) presented at least 1 traumatized tooth with previous dental treatment. Among 212 (61.4%) traumatized teeth, 67.5% were upper incisors, 17.5% were lower incisors, 3.3% were upper canines, 1.9% were lower canines, and 9.9% were bicuspids and molars. Work-related TDIs had a low overall prevalence, and fractures were the most frequent dental injury. Age, gender, and preexisting dental treatments represented risk factors for work-related TDIs. © 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  15. A survey of oral and maxillofacial biopsies in children: a single-center retrospective study of 20 years in Pelotas-Brazil

    Directory of Open Access Journals (Sweden)

    Giana da Silveira Lima

    2008-12-01

    Full Text Available Despite the large number of published cases about oral and maxillofacial pediatric lesions, the literature is scarce on epidemiological studies regarding the prevalence of these entities. This study retrieved oral and maxillofacial pediatric lesions from the Center of Diagnosis of Oral Diseases (CDDB at the Dental School of the Federal University of Pelotas (UFPEL, comprising a 20-year period (1983-2002. From the total of 9,465 biopsies received in this period, 625 (6.6% were from children aged 0 to 14 years. Regardless of the histopathological diagnosis, patient data referring to lesion location, sex and age were collected. Diagnoses were grouped in 13 categories. As much as 89% of the cases occurred in patients aged 7 to 14 years (53% in females and 47% in males. Mucocele (17.2% was the most common type of lesion, followed by dentigerous cyst (8.6%. In the category of odontogenic tumors, odontoma was the most frequent lesion (64.2%. Malignant lesions were observed in a small section of the sample (1.2%. Generally, the results of the present study are in line with those reported in the literature concerning the most prevalent lesions in the pediatric population. Most lesions were benign, and malignant lesions were diagnosed in a very small part of the sample.

  16. Anterior cruciate ligament (ACL) injury

    Science.gov (United States)

    ... joint Quickly stop moving and change direction while running, landing from a jump, or turning Basketball, football, soccer, and skiing are common sports linked to ACL tears. ACL injuries often occur with other injuries. For example, an ...

  17. 3D-CT imaging processing for qualitative and quantitative analysis of maxillofacial cysts and tumors

    International Nuclear Information System (INIS)

    Cavalcanti, Marcelo de Gusmao Paraiso; Antunes, Jose Leopoldo Ferreira

    2002-01-01

    The objective of this study was to evaluate spiral-computed tomography (3D-CT) images of 20 patients presenting with cysts and tumors in the maxillofacial complex, in order to compare the surface and volume techniques of image rendering. The qualitative and quantitative appraisal indicated that the volume technique allowed a more precise and accurate observation than the surface method. On the average, the measurements obtained by means of the 3D volume-rendering technique were 6.28% higher than those obtained by means of the surface method. The sensitivity of the 3D surface technique was lower than that of the 3D volume technique for all conditions stipulated in the diagnosis and evaluation of lesions. We concluded that the 3D-CT volume rendering technique was more reproducible and sensitive than the 3D-CT surface method, in the diagnosis, treatment planning and evaluation of maxillofacial lesions, especially those with intra-osseous involvement. (author)

  18. The fate of titanium miniplates and screws used in maxillofacial surgery: a 10 year retrospective study.

    LENUS (Irish Health Repository)

    O'Connell, J

    2012-01-31

    The objective of this 10 year, retrospective study is to evaluate the indications for the removal of titanium miniplates following osteosynthesis in maxillofacial trauma and orthognathic surgery. All patients who had miniplates placed in a Regional Oral and Maxillofacial Department between January 1998 and October 2007 were included. The following variables were recorded: patient gender and age, number of plates inserted, indications for plate placement, location of plates, number and location of plates removed, indications for plate removal, time between insertion and removal, medical co-morbidities, and the follow-up period. During the 10 years of the study, 1247 titanium miniplates were placed in 535 patients. A total of 32 (3%) plates were removed from 30 patients. Superficial infection accounted for 41% of all plates removed. All complications were minor and most plates were removed within the first year of insertion. A low removal rate of 3% suggests that the routine removal of asymptomatic titanium miniplates is not indicated.

  19. Maxillofacial extramedullary hematopoiesis in a child with sickle cell presenting as bilateral periorbital cellulitis.

    Science.gov (United States)

    Reiersen, David A; Mandava, Mamatha; Jeroudi, Majed; Gungor, Anil

    2014-07-01

    Review of a case of paraosseous extramedullary hematopoiesis (EMH) affecting the maxillary sinuses and retro-orbital spaces imitating bilateral orbital cellulitis. Maxillofacial EMH causes diagnostic/therapeutic challenges. This case report describes a 4-year-old African American male with sickle cell disease (HbSS) who presented with bilateral orbitofacial swelling. Diagnosis was made with imaging and confirmed with tissue sampling. Partial exchange transfusion was utilized to stop the progression of maxillofacial EMH and to treat the patient's chronic anemia. Follow-up MRI showed regression of orbital and retro-orbital involvement. Early treatment with conservative modalities and close observation may prevent need for more invasive treatments. Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

  20. 3D-CT imaging processing for qualitative and quantitative analysis of maxillofacial cysts and tumors

    Energy Technology Data Exchange (ETDEWEB)

    Cavalcanti, Marcelo de Gusmao Paraiso [Sao Paulo Univ., SP (Brazil). Faculdade de Odontologia. Dept. de Radiologia; Antunes, Jose Leopoldo Ferreira [Sao Paulo Univ., SP (Brazil). Faculdade de Odotologia. Dept. de Odontologia Social

    2002-09-01

    The objective of this study was to evaluate spiral-computed tomography (3D-CT) images of 20 patients presenting with cysts and tumors in the maxillofacial complex, in order to compare the surface and volume techniques of image rendering. The qualitative and quantitative appraisal indicated that the volume technique allowed a more precise and accurate observation than the surface method. On the average, the measurements obtained by means of the 3D volume-rendering technique were 6.28% higher than those obtained by means of the surface method. The sensitivity of the 3D surface technique was lower than that of the 3D volume technique for all conditions stipulated in the diagnosis and evaluation of lesions. We concluded that the 3D-CT volume rendering technique was more reproducible and sensitive than the 3D-CT surface method, in the diagnosis, treatment planning and evaluation of maxillofacial lesions, especially those with intra-osseous involvement. (author)

  1. Deep vein thrombosis: A rare complication in oral and maxillofacial surgery: A review of two cases

    Directory of Open Access Journals (Sweden)

    M.R. Ramesh Babu

    2013-01-01

    Full Text Available Deep vein thrombosis (DVT is caused by obstruction of blood flow of deep veins in upper and lower limb. One of the precipitating factors for DVT is surgery under general anesthesia exceeding 30 min. However, there are very few reports of DVT associated with surgery of oral and maxillofacial region. In this paper we report two cases of DVT involving left ilio-femoropopliteal deep vein in one patient treated for fractured left angle of mandible and left peroneal vein in the other patient treated for oral sub mucous fibrosis. Clinical and color Doppler examination were performed to diagnose the condition and were referred to vascular surgical unit of higher institute for further management. These cases illustrates any surgery of maxillofacial region is not free from risk of DVT, which can cause fatal pulmonary thromboembolism.

  2. Clinical Application of Diode Laser (980 nm) in Maxillofacial Surgical Procedures.

    Science.gov (United States)

    Aldelaimi, Tahrir N; Khalil, Afrah A

    2015-06-01

    For many procedures, lasers are now becoming the treatment of choice by both clinicians and patients, and in some cases, the standard of care. This clinical study was carried out at Department of Maxillofacial Surgery, Ramadi Teaching Hospital, Rashid Private Hospital and Razi Private Hospital, Anbar Health Directorate, Anbar Province, Iraq. A total of 32 patients including 22 (≈ 70%) male and 10 (≈ 30%) female with age range from 5 months to 34 years old. Chirolas 20 W diode laser emitting at 980 nm was used. Our preliminary clinical findings include sufficient hemostasis, coagulation properties, precise incision margin, lack of swelling, bleeding, pain, scar tissue formation and overall satisfaction were observed in the clinical application. The clinical application of the diode (980 nm) laser in maxillofacial surgery proved to be of beneficial effect for daily practice and considered practical, effective, easy to used, offers a safe, acceptable, and impressive alternative for conventional surgical techniques.

  3. A review of computer-aided oral and maxillofacial surgery: planning, simulation and navigation.

    Science.gov (United States)

    Chen, Xiaojun; Xu, Lu; Sun, Yi; Politis, Constantinus

    2016-11-01

    Currently, oral and maxillofacial surgery (OMFS) still poses a significant challenge for surgeons due to the anatomic complexity and limited field of view of the oral cavity. With the great development of computer technologies, he computer-aided surgery has been widely used for minimizing the risks and improving the precision of surgery. Areas covered: The major goal of this paper is to provide a comprehensive reference source of current and future development of computer-aided OMFS including surgical planning, simulation and navigation for relevant researchers. Expert commentary: Compared with the traditional OMFS, computer-aided OMFS overcomes the disadvantage that the treatment on the region of anatomically complex maxillofacial depends almost exclusively on the experience of the surgeon.

  4. Use of customized polyetheretherketone (PEEK) implants in the reconstruction of complex maxillofacial defects.

    Science.gov (United States)

    Kim, Michael M; Boahene, Kofi D O; Byrne, Patrick J

    2009-01-01

    Extensive maxillofacial defects resulting from trauma or oncologic resection present reconstructive challenges. Various autografts and alloplastic materials in conjunction with standard soft-tissue techniques have been used in the reconstruction of these types of defects. Polyetheretherketone (PEEK) is a semicrystalline polyaromatic linear polymer exhibiting an excellent combination of strength, stiffness, durability, and environmental resistance. Recent investigations of PEEK as a biomaterial resulted in the successful treatment of cervical disk disease. We describe a series of 4 patients whose defects were reconstructed using customized PEEK implants. All had excellent postoperative aesthetic and functional results without complications such as infections or extrusions. Because PEEK implants are customizable, easily workable, inert, and nonporous, they represent an ideal alloplastic material for maxillofacial reconstruction.

  5. [Guided maxillofacial surgery: Simulation and surgery aided by stereolithographic guides and custom-made miniplates.

    Science.gov (United States)

    Philippe, B

    2013-08-05

    We present a new model of guided surgery, exclusively using computer assistance, from the preoperative planning of osteotomies to the actual surgery with the aid of stereolithographic cutting guides and osteosynthetic miniplates designed and made preoperatively, using custom-made titanium miniplates thanks to direct metal laser sintering. We describe the principles that guide the designing and industrial manufacturing of this new type of osteosynthesis miniplates. The surgical procedure is described step-by-step using several representative cases of dento-maxillofacial dysmorphosis. The encouraging short-term results demonstrate the wide range of application of this new technology for cranio-maxillofacial surgery, whatever the type of osteotomy performed, and for plastic reconstructive surgery. Copyright © 2013. Published by Elsevier Masson SAS.

  6. 3D-CT vascular setting protocol using computer graphics for the evaluation of maxillofacial lesions

    Directory of Open Access Journals (Sweden)

    CAVALCANTI Marcelo de Gusmão Paraiso

    2001-01-01

    Full Text Available In this paper we present the aspect of a mandibular giant cell granuloma in spiral computed tomography-based three-dimensional (3D-CT reconstructed images using computer graphics, and demonstrate the importance of the vascular protocol in permitting better diagnosis, visualization and determination of the dimensions of the lesion. We analyzed 21 patients with maxillofacial lesions of neoplastic and proliferative origins. Two oral and maxillofacial radiologists analyzed the images. The usefulness of interactive 3D images reconstructed by means of computer graphics, especially using a vascular setting protocol for qualitative and quantitative analyses for the diagnosis, determination of the extent of lesions, treatment planning and follow-up, was demonstrated. The technique is an important adjunct to the evaluation of lesions in relation to axial CT slices and 3D-CT bone images.

  7. 3D-CT vascular setting protocol using computer graphics for the evaluation of maxillofacial lesions.

    Science.gov (United States)

    Cavalcanti, M G; Ruprecht, A; Vannier, M W

    2001-01-01

    In this paper we present the aspect of a mandibular giant cell granuloma in spiral computed tomography-based three-dimensional (3D-CT) reconstructed images using computer graphics, and demonstrate the importance of the vascular protocol in permitting better diagnosis, visualization and determination of the dimensions of the lesion. We analyzed 21 patients with maxillofacial lesions of neoplastic and proliferative origins. Two oral and maxillofacial radiologists analyzed the images. The usefulness of interactive 3D images reconstructed by means of computer graphics, especially using a vascular setting protocol for qualitative and quantitative analyses for the diagnosis, determination of the extent of lesions, treatment planning and follow-up, was demonstrated. The technique is an important adjunct to the evaluation of lesions in relation to axial CT slices and 3D-CT bone images.

  8. Gender trends in authorship in oral and maxillofacial surgery literature: A 30-year analysis.

    Science.gov (United States)

    Nkenke, Emeka; Seemann, Rudolf; Vairaktaris, Elefterios; Schaller, Hans-Günter; Rohde, Maximilian; Stelzle, Florian; Knipfer, Christian

    2015-07-01

    The aim of the present study was to perform a bibliometric analysis of the gender distribution of first and senior authorships in important oral and maxillofacial journals over the 30-year period from 1980 to 2010. Articles published in three representative oral and maxillofacial surgery journals were selected. The years 1980, 1990, 2000, and 2010 were chosen as representative points in time for article selection. Original research, case reports, technical notes, and reviews were included in the analysis. Case reports and technical notes were pooled in one group. For each article, the gender of the first author as well as that of the senior author was determined, based on the inspection of their first name. The type of article was determined and the country of origin of the article was documented. A total 1412 articles were subjected to the data analysis. A significant increase in female authorship in oral and maxillofacial surgery could be identified over the chosen 30-year period. However, the number of publications by male authors was still significantly higher at all points of time, exceeding those of female authors by at least 3.8 fold in 2010. As there is a trend towards feminization of medicine and dentistry, the results of the present study may serve as the basis for further analysis of the current situation, and the identification of necessary actions to accelerate the closure of the gender gap in publishing in oral and maxillofacial surgery. Copyright © 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

  9. Hypnosis as a Valuable Tool for Surgical Procedures in the Oral and Maxillofacial Area.

    Science.gov (United States)

    Montenegro, Gil; Alves, Luiza; Zaninotto, Ana Luiza; Falcão, Denise Pinheiro; de Amorim, Rivadávio Fernandes Batista

    2017-04-01

    Hypnosis is a valuable tool in the management of patients who undergo surgical procedures in the maxillofacial complex, particularly in reducing and eliminating pain during surgery and aiding patients who have dental fear and are allergic to anesthesia. This case report demonstrates the efficacy of hypnosis in mitigating anxiety, bleeding, and pain during dental surgery without anesthesia during implant placement of tooth 14, the upper left first molar.

  10. An evaluation of advanced digital colour technology for colour matching maxillofacial prosthetics.

    OpenAIRE

    Nacher-Garcia, C.

    2016-01-01

    Aim: To evaluate the reliability and reproducibility of the Spectromatch-Pro digital colour system (Spectromatch Ltd. UK) in the reproduction of simulated skin-silicone colour samples; and to determine threshold Delta E (∆E) (CIE L*a*b*) of perceptible and acceptable colour differences for maxillofacial prosthetics. Method: A two phase quantitative research design. Phase 1: tested; (i) the reproducibility of the spectrophotometer for eight subjects (n=48) scans; from four ethnic groups...

  11. Analysis of the drilling sound component from expert performance in a maxillo-facial surgery

    DEFF Research Database (Denmark)

    Hoffmann, Pablo F.; Gosselin, Florian; Taha, Farid

    2009-01-01

    Auditory displays can have a great potential in surgical simulators that aim at training skills associated to the correct interpretation of auditory information. Here, we present preliminary results in the analysis of the sound produced by the drilling procedure in a maxillo-facial surgery when...... performed by expert surgeons. The motivation of this work is to find relevant acoustic parameters that allow for an efficient synthesis method of auditory displays so that they can effectively convey information on expert surgical drilling....

  12. Which Factors Affect Citation Rates in the Oral and Maxillofacial Surgery Literature?

    Science.gov (United States)

    Cheng, Kristie L; Dodson, Thomas B; Egbert, Mark A; Susarla, Srinivas M

    2017-07-01

    Citation rate is one of several tools to measure academic productivity. The purposes of this study were to estimate and identify factors associated with citation rates in the oral and maxillofacial surgery (OMS) literature. This was a retrospective longitudinal study of publications in the Journal of Oral and Maxillofacial Surgery (JOMS), International Journal of Oral and Maxillofacial Surgery (IJOMS), and Oral Surgery, Oral Medicine, Oral Pathology, and Oral Radiology (OOOO) from January through December 2012. The predictor variables were author- and article-specific factors. The outcome variable was the citation rate, defined as the total number of citations for each article over a 4-year period. Descriptive, bivariate, and multiple regression statistics were computed. The authors identified 993 articles published during 2012. The mean number of citations at 4 years after publication was 5.6 ± 5.3 (median, 4). In bivariate analyses, several author- and article-specific factors were associated with citation rates. In a multiple regression model adjusting for potential confounders and effect modifiers, first author H-index, number of authors, journal, OMS focus area, and Oxford level of evidence were significantly associated with citation rate (P ≤ .002). The authors identified 5 factors associated with citation rates in the OMS literature. These factors should be considered in context when evaluating citation-based metrics for OMS. Studies that focus on core OMS procedures (eg, dentoalveolar surgery, dental implant surgery), are published in specialty-specific journals (eg, JOMS or IJOMS), and have higher levels of evidence are more likely to be cited. Copyright © 2017 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  13. Rapid prototyping modelling in oral and maxillofacial surgery: a two year retrospective study

    OpenAIRE

    Suomalainen, Anni; Stoor, Patricia; Mesimäki, Karri; Kontio, Risto K.

    2015-01-01

    Background The use of rapid prototyping (RP) models in medicine to construct bony models is increasing. Material and Methods The aim of the study was to evaluate retrospectively the indication for the use of RP models in oral and maxillofacial surgery at Helsinki University Central Hospital during 2009-2010. Also, the used computed tomography (CT) examination ? multislice CT (MSCT) or cone beam CT (CBCT) - method was evaluated. Results In total 114 RP models were fabricated for 102 patients. ...

  14. Acquisition and manipulation of computed tomography images of the maxillofacial region for biomedical prototyping

    International Nuclear Information System (INIS)

    Meurer, Maria Ines; Silva, Jorge Vicente Lopes da; Santa Barbara, Ailton; Nobre, Luiz Felipe; Oliveira, Marilia Gerhardt de; Silva, Daniela Nascimento

    2008-01-01

    Biomedical prototyping has resulted from a merger of rapid prototyping and imaging diagnosis technologies. However, this process is complex, considering the necessity of interaction between biomedical sciences and engineering. Good results are highly dependent on the acquisition of computed tomography images and their subsequent manipulation by means of specific software. The present study describes the experience of a multidisciplinary group of researchers in the acquisition and manipulation of computed tomography images of the maxillofacial region aiming at biomedical prototyping for surgical purposes. (author)

  15. Review of methods used in the reconstruction and rehabilitation of the maxillofacial region.

    LENUS (Irish Health Repository)

    O'Fearraigh, Pádraig

    2010-04-23

    Maxillofacial and dental defects often have detrimental effects on patient health and appearance. A holistic approach of restoring lost dentition along with bone and soft tissue is now the standard treatment of these defects. Recent improvements in reconstructive techniques, especially osseointegration, microvascular free tissue transfer, and improvements in bone engineering, have yielded excellent functional and aesthetic outcomes. This article reviews the literature on these modern reconstructive and rehabilitation techniques.

  16. Etiology, diagnosis, and demographic analysis of maxillofacial trauma in elderly persons: A 10-year investigation

    DEFF Research Database (Denmark)

    Possebon, Anna Paula da Rosa; Granke, Gabriela; Faot, Fernanda

    2017-01-01

    Purpose The aim of this study was to investigate etiologies and diagnoses of maxillofacial trauma in emergency services in Brazil over a period of 10 years. Additionally, associations among sex, age, accident location, and dependent variables were analyzed. Understanding the epidemiology of trauma...... understanding of the physiological changes associated with aging, and preventive action to reduce falls, traffic accidents, and aggression in this population could be beneficial with regard to quality of life for elderly persons....

  17. Microsurgical reconstruction of the head and neck region: Current concepts of maxillofacial surgery units worldwide.

    Science.gov (United States)

    Kansy, Katinka; Mueller, Andreas Albert; Mücke, Thomas; Koersgen, Friederike; Wolff, Klaus Dietrich; Zeilhofer, Hans-Florian; Hölzle, Frank; Pradel, Winnie; Schneider, Matthias; Kolk, Andreas; Smeets, Ralf; Acero, Julio; Haers, Piet; Ghali, G E; Hoffmann, Jürgen

    2015-10-01

    Microvascular surgery following tumor resection has become an important field of oral maxillofacial surgery (OMFS). Following the surveys on current reconstructive practice in German-speaking countries and Europe, this paper presents the third phase of the project when the survey was conducted globally. The DOESAK questionnaire has been developed via a multicenter approach with maxillofacial surgeons from 19 different hospitals in Germany, Austria and Switzerland. It was distributed in three different phases to a growing number of maxillofacial units in German-speaking clinics, over Europe and then worldwide. Thirty-eight units from Germany, Austria and Switzerland, 65 remaining European OMFS-departments and 226 units worldwide responded to the survey. There is wide agreement on the most commonly used flaps, intraoperative rapid sections and a trend towards primary bony reconstruction. No uniform concepts can be identified concerning osteosynthesis of bone transplants, microsurgical techniques, administration of supportive medication and postoperative monitoring protocols. Microsurgical reconstruction is the gold standard for the majority of oncologic cases in Europe, but worldwide, only every second unit has access to this technique. The DOESAK questionnaire has proven to be a valid and well accepted tool for gathering information about current practice in reconstructive OMFS surgery. The questionnaire has been able to demonstrate similarities, differences and global inequalities. Copyright © 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

  18. Do Quantitative Measures of Research Productivity Correlate with Academic Rank in Oral and Maxillofacial Surgery?

    Science.gov (United States)

    Susarla, Srinivas M; Dodson, Thomas B; Lopez, Joseph; Swanson, Edward W; Calotta, Nicholas; Peacock, Zachary S

    2015-08-01

    Academic promotion is linked to research productivity. The purpose of this study was to assess the correlation between quantitative measures of academic productivity and academic rank among academic oral and maxillofacial surgeons. This was a cross-sectional study of full-time academic oral and maxillofacial surgeons in the United States. The predictor variables were categorized as demographic (gender, medical degree, research doctorate, other advanced degree) and quantitative measures of academic productivity (total number of publications, total number of citations, maximum number of citations for a single article, I-10 index [number of publications with ≥ 10 citations], and h-index [number of publications h with ≥ h citations each]). The outcome variable was current academic rank (instructor, assistant professor, associate professor, professor, or endowed professor). Descriptive, bivariate, and multiple regression statistics were computed to evaluate associations between the predictors and academic rank. Receiver-operator characteristic curves were computed to identify thresholds for academic promotion. The sample consisted of 324 academic oral and maxillofacial surgeons, of whom 11.7% were female, 40% had medical degrees, and 8% had research doctorates. The h-index was the most strongly correlated with academic rank (ρ = 0.62, p research activity.

  19. 3D Printed Surgical Simulation Models as educational tool by maxillofacial surgeons.

    Science.gov (United States)

    Werz, S M; Zeichner, S J; Berg, B-I; Zeilhofer, H-F; Thieringer, F

    2018-02-26

    The aim of this study was to evaluate whether inexpensive 3D models can be suitable to train surgical skills to dental students or oral and maxillofacial surgery residents. Furthermore, we wanted to know which of the most common filament materials, acrylonitrile butadiene styrene (ABS) or polylactic acid (PLA), can better simulate human bone according to surgeons' subjective perceptions. Upper and lower jaw models were produced with common 3D desktop printers, ABS and PLA filament and silicon rubber for soft tissue simulation. Those models were given to 10 blinded, experienced maxillofacial surgeons to perform sinus lift and wisdom teeth extraction. Evaluation was made using a questionnaire. Because of slightly different density and filament prices, each silicon-covered model costs between 1.40-1.60 USD (ABS) and 1.80-2.00 USD (PLA) based on 2017 material costs. Ten experienced raters took part in the study. All raters deemed the models suitable for surgical education. No significant differences between ABS and PLA were found, with both having distinct advantages. The study demonstrated that 3D printing with inexpensive printing filaments is a promising method for training oral and maxillofacial surgery residents or dental students in selected surgical procedures. With a simple and cost-efficient manufacturing process, models of actual patient cases can be produced on a small scale, simulating many kinds of surgical procedures. © 2018 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  20. The therapeutic use of botulinum toxin in cervical and maxillofacial conditions: an evidence-based review.

    Science.gov (United States)

    Ihde, Stefan K A; Konstantinovic, Vitomir S

    2007-08-01

    The role of botulinum toxin as a therapeutic agent for several conditions is expanding. We sought to determine if botulinum toxin is safe and effective in treating patients with cervical dystonia and maxillofacial conditions. Our purpose was to establish a safety and efficacy profile to determine whether or not this treatment may be used prophylactically in patients undergoing dental implant therapy. We performed a systematic search of the literature to identify randomized clinical trials evaluating patients treated with botulinum toxin as an adjunct to dental implant therapy, maxillofacial conditions including temporomandibular disorders (TMD), and cervical dystonia. Four randomized controlled trials (RCTs) met our search criteria in the area of cervical dystonia and chronic facial pain. No RCTs were identified evaluating dental implant therapy. Patients with cervical dystonia exhibited significant improvements in baseline functional, pain, and global assessments compared to placebo. Adverse events were mild and transient with numbers needed to harm (NNH) ranging from 12 to 17. Patients with chronic facial pain improved significantly from baseline in terms of pain compared to placebo. Rates of adverse events were less than 1%. Botulinum toxin appears relatively safe and effective in treating cervical dystonia and chronic facial pain associated with masticatory hyperactivity. No literature exists evaluating its use in dental implantology. Randomized clinical trials are warranted to determine its safety and efficacy in dental implantology and other maxillofacial conditions such as bruxism.

  1. In vitro cytotoxicity of maxillofacial silicone elastomers: effect of accelerated aging.

    Science.gov (United States)

    Bal, Bilge Turhan; Yilmaz, Handan; Aydin, Cemal; Karakoca, Seçil; Yilmaz, Sükran

    2009-04-01

    The purpose of this in vitro study was to evaluate the cytotoxicity of three maxillofacial silicone elastomers at 24, 48, and 72 h on L-929 cells and to determine the effect of accelerated aging on the cytotoxicity of these silicone elastomers. Disc-shaped test samples of maxillofacial silicone elastomers (Cosmesil, Episil, Multisil) were fabricated according to manufacturers' instructions under aseptic conditions. Samples were then divided into three groups: (1) not aged; (2) aged for 150 h with an accelerated weathering tester; and (3) aged for 300 h. Then the samples were placed in Dulbecco's Modified Eagle Medium/Ham's F12 (DMEM/F12) for 24, 48, and 72 h. After the incubation periods, cytotoxicity of the extracts to cultured fibroblasts (L-929) was measured by MTT assay. The degree of cytotoxicity of each sample was determined according to the reference value represented by the cells with a control (culture without sample). Statistical significance was determined by repeated measurement ANOVA (p test (p test materials in each group demonstrated high survival rates in MTT assay (Episil; 93.84%, Multisil; 88.30%, Cosmesil; 87.50%, respectively); however, in all groups, Episil material demonstrated significantly higher cell survival rate after each of the experimental incubation periods (p Accelerated aging for 150 and 300 h had no significant effect on the biocompatibility of maxillofacial silicone elastomers tested (p > 0.05).

  2. A multicenter study of biopsied oral and maxillofacial lesions in a Brazilian pediatric population.

    Science.gov (United States)

    Silva, Leni Verônica de Oliveira; Arruda, José Alcides Almeida; Martelli, Stephanie Joana; Kato, Camila de Nazaré Alves de Oliveira; Nunes, Laiz Fernanda Mendes; Vasconcelos, Ana Carolina Uchoa; Tarquinio, Sandra Beatriz Chaves; Gomes, Ana Paula Neutzling; Gomez, Ricardo Santiago; Mesquita, Ricardo Alves; Silveira, Marcia Maria Fonseca da; Sobral, Ana Paula Veras

    2018-03-15

    The aim of this study was to investigate the prevalence of oral and maxillofacial lesions among children from representative regions of Brazil. A retrospective descriptive study was conducted. Biopsy records comprising the period from 2000 to 2015 were obtained from the archives of three Brazilian oral pathology referral centers. A total of 32,506 biopsy specimens were analyzed, and specimens from 1,706 children aged 0-12 years were selected. Gender, age, anatomical location and histopathological diagnosis were evaluated. Descriptive statistics was carried out. Likelihood ratio tests were used to evaluate the association between the categorical variables. The level of significance was set at 0.05. The post-hoc test was used to identify the subgroups that significantly differed from one another, and the Bonferroni correction was applied. A total of 1,706 oral and maxillofacial lesions were diagnosed in pediatric patients, including 51.9% girls. Oral mucocele was the most prevalent reactive/inflammatory lesion (64%). The most commonly affected sites were the lips (34.5%) and mandible (19.9%). A significant association was observed between age and the group of lesions of the oral cavity (p oral and maxillofacial lesions were frequent and showed wide diversity, with the prevalence of mucocele. Knowledge of oral lesions is important for pediatric dentists worldwide, since it provides accurate data for the diagnosis and oral health of children.

  3. Pain management procedures used by dental and maxillofacial surgeons: an investigation with special regard to odontalgia

    Directory of Open Access Journals (Sweden)

    Nadstawek Joachim

    2005-12-01

    Full Text Available Abstract Background Little is known about the procedures used by German dental and maxillofacial surgeons treating patients suffering from chronic orofacial pain (COP. This study aimed to evaluate the ambulatory management of COP. Methods Using a standardized questionnaire we collected data of dental and maxillofacial surgeons treating patients with COP. Therapists described variables as patients' demographics, chronic pain disorders and their aetiologies, own diagnostic and treatment principles during a period of 3 months. Results Although only 13.5% of the 520 addressed therapists returned completely evaluable questionnaires, 985 patients with COP could be identified. An orofacial pain syndrome named atypical odontalgia (17.0 % was frequent. Although those patients revealed signs of chronification, pain therapists were rarely involved (12.5%. For assessing pain the use of Analogue Scales (7% or interventional diagnostics (4.6% was uncommon. Despite the fact that surgical procedures are cofactors of COP therapists preferred further surgery (41.9% and neglected the prescription of analgesics (15.7%. However, most therapists self-evaluated the efficacy of their pain management as good (69.7 %. Conclusion Often ambulatory dental and maxillofacial surgeons do not follow guidelines for COP management despite a high prevalence of severe orofacial pain syndromes.

  4. Systematic Review of Pain assessment scales in newborns under maxillofacial surgery Admitted to the surgical ward

    Directory of Open Access Journals (Sweden)

    Shapour Yaripoor

    2016-10-01

    Full Text Available Having standard tools for measuring pain in infants is essential. The aim of this study is to review the scale of pain in newborns under maxillofacial surgery Admitted to the surgical ward. Integrative review study of articles published from 2000 to 2015, carried out in the following databases: Scopus, PubMed, CINAHL, LILACS, Cochrane, medscape and google scholar. The sample consisted of 17 articles. MeSH headings searched included pain measurement, pain scale, newborn pain, infant pain scale, maxillofacial surgery and pain perception. 16 neonatal pain assessment tools were found. Of the 232 original articles, 17 review articles in the field of pain assessment tools in infant under maxillofacial surgery who had inclusion criteria were selected. The most studied was the Premature Infant Pain Profile (PIPP, The CRIES and the Neonatal Infant Pain Scale (NIPS. Infant pain assessment is not universally standardized. Practitioners may assess pain; however, they may not consistently use the same criteria to do so. The use of Neonatal Facial Coding System, the Neonatal Infant Pain Scale and the Premature Infant Pain Profile Can accurately show the amount of pain in newborns.

  5. Laser therapy and sclerotherapy in the treatment of oral and maxillofacial hemangioma and vascular malformations

    Science.gov (United States)

    Crişan, Bogdan; BǎciuÅ£, Mihaela; BǎciuÅ£, Grigore; Crişan, Liana; Bran, Simion; Rotar, Horatiu; Moldovan, Iuliu; Vǎcǎraş, Sergiu; Mitre, Ileana; Barbur, Ioan; Magdaş, Andreea; Dinu, Cristian

    2016-03-01

    Hemangioma and vascular malformations in the field of oral and maxillofacial surgery is a pathology more often found in recent years in patients. The aim of this study was to evaluate the efficacy of the laser photocoagulation performed with a diode laser (Ga-Al-As) 980 nm wavelength in the treatment of vascular lesions which are located on the oral and maxillofacial areas, using color Doppler ultrasonography for evaluation of the results. We also made a comparison between laser therapy and sclerotherapy in order to establish treatment protocols and recommendations associated with this pathology. We conducted a controlled study on a group of 92 patients (38 male and 54 female patients, with an average age of 36 years) having low flow hemangioma and vascular malformations. Patients in this trial received one of the methods of treatment for vascular lesions such as hemangioma and vascular malformations: laser therapy or sclerotherapy. After laser therapy we have achieved a reduction in size of hemangioma and vascular malformations treated with such a procedure, and the aesthetic results were favorable. No reperfusion or recanalization of laser treated vascular lesions was observed after an average follow-up of 6 to 12 months. In case of sclerotherapy a reduction in the size of vascular lesions was also obtained. The 980 nm diode laser has been proved to be an effective tool in the treatment of hemangioma and vascular malformations in oral and maxillofacial area. Laser therapy in the treatment of vascular lesions was more effective than the sclerotherapy procedure.

  6. Epidemiología del trauma maxilofacial por accidente ciclístico Epidemiology of the maxillofacial trauma caused by bicycle accident

    Directory of Open Access Journals (Sweden)

    Angel Pérez Rodríguez

    2004-12-01

    Full Text Available Se realizó un estudio descriptivo y transversal sobre aspectos epidemiológicos del trauma maxilofacial por accidentes ciclísticos en 194 pacientes con diagnóstico clínico, radiográfico o ambos, de lesiones en esta región, que fueron recibidos y atendidos en el Servicio de Urgencia de Cirugía Maxilofacial del Hospital Clinicoquirúrgico "Saturnino Lora" de Santiago de Cuba, durante el período comprendido desde el 1 de octubre de 1998 hasta el 31 de diciembre de 1999. Entre los resultados más sobresalientes figuraron el predominio de los adultos jóvenes de 20 a 39 años de edad, sobre todo de los varones, la caída como modalidad de accidente, la colisión como la causante del mayor número de lesionados graves y defunciones. La imprudencia e ingestión de alcohol en conductores laboralmente activos resultaron ser las causas y víctimas que prevalecieron en este tipo de accidente, particularmente en el horario de 4 p.m. a 12 a.m. y en la calle, esta última la vía donde más accidentes y lesionados se produjeron. Las contusiones y laceraciones dentro de los tejidos blandos y las fracturas zigomáticas, nasales y palatoalveolares dentro del tejido duro, resultaron los patrones de lesiones predominantes.A descriptive cross-sectional study on epidemiological aspects of the maxillofacial trauma caused by bicycle accidents was conducted among 194 patients with clinical or radiographic diagnosis, or both, of injuries in this region. They received attention at the Emergency Service of Maxillofacial Surgery of "Saturnino Lora" Clinical and Surgical Hospital, in Santiago de Cuba, from October 1st, 1998 to December 31st, 1999. Some of the most significant results were: the predominance of young adults aged 20-39, mainly males, among the victims, the fall as an accident modality, the collision as the cause of the highest number of severe injures and deaths, and imprudence and alcohol ingestion in working drivers. These were some of the prevailing

  7. Karate and karate injuries.

    OpenAIRE

    McLatchie, G.

    1981-01-01

    The origins of karate and its evolution as a sport are described. Karate injuries tend to occur in three main areas: the head and neck, the viscera, and the limbs. Effective legislation controlling karate, which could help prevent injuries, is lacking at the moment and should be established. Recommendations for the prevention of injury include the introduction of weight classes, mandatory provision of protective equipment such as padded flooring, and the outlawing of certain uncontrollable m...

  8. Recreational mountain biking injuries.

    Science.gov (United States)

    Aitken, S A; Biant, L C; Court-Brown, Charles M

    2011-04-01

    Mountain biking is increasing in popularity worldwide. The injury patterns associated with elite level and competitive mountain biking are known. This study analysed the incidence, spectrum and risk factors for injuries sustained during recreational mountain biking. The injury rate was 1.54 injuries per 1000 biker exposures. Men were more commonly injured than women, with those aged 30-39 years at highest risk. The commonest types of injury were wounding, skeletal fracture and musculoskeletal soft tissue injury. Joint dislocations occurred more commonly in older mountain bikers. The limbs were more commonly injured than the axial skeleton. The highest hospital admission rates were observed with head, neck and torso injuries. Protective body armour, clip-in pedals and the use of a full-suspension bicycle may confer a protective effect.

  9. Snowboarding injuries. An overview.

    Science.gov (United States)

    Bladin, C; McCrory, P

    1995-05-01

    Over the last 10 years, snowboarding has become established as a popular and legitimate alpine sport. However, at present, there are few epidemiological studies examining the spectrum of injuries associated with this new sport. Snowboarders are typically male (male: female ratio of 3:1) and in their early twenties. They have an injury rate of 4 to 6 per 1000 visits, which is comparable to that which occurs with skiing. However, in contrast to skiing, in which only 34% of those injured are beginners, the majority (60%) of snowboarders injured are beginners. This is a reflection of the participant profile of this developing sport. 57% of injuries occur in the lower limbs, and 30% in the upper limbs. The most common injuries are simple sprains (31 to 53%), particularly of the ankles (23 to 26%) and knees (12 to 23%), followed by fractures (24 to 27%) and contusions (12%). Compared with skiing injuries, snowboarders have 2.4 times as many fractures, particularly of the upper limbs (constituting 21 vs 35% of upper limb injuries), fewer knee injuries (23 vs 44% of lower limb injuries), but more ankle injuries (23 vs 6% of lower limb injuries). Snowboarding knee injuries are less severe than those associated with skiing. Fracture of the lateral process of the talus is an unusual and uncommon snowboarding injury that can be misdiagnosed as a severe ankle sprain. Ankle injuries are more common with soft shell boots, whereas knee injuries and distal tibia fractures are more common with hard shell boots.(ABSTRACT TRUNCATED AT 250 WORDS)

  10. Facial dog bite injuries in children: A case report

    Directory of Open Access Journals (Sweden)

    Alessandro Leite Cavalcanti

    Full Text Available Introduction: Dog bites are common and can affect victims of different ages, from children to the elderly. Injuries are usually located in different body regions, including head and face. The treatment of choice for injuries is the suture of the lesion, accompanied by antibiotic therapy and tetanus and anti-rabies vaccination. Presentation of case: An 11-year-old male black patient was admitted to the Surgery and Maxillo-Facial Traumatology Service, on an urgent basis, victim of domestic animal aggression (dog biting. The child had multiple and extensive lesions on the face, trauma with laceration with loss of substance, involving the left genic region, lower and upper lip, and lower gingival-labial sulcus. Discussion: Smaller children are especially vulnerable to injuries in the craniofacial region due their low stature, propensity to crawl/play on the ground and exploratory behavior. The primary treatment of bites is by means of direct suture, grafting or local flaps, depending on the type of wound and the surgeon's decision, regardless of time elapsed from the attack. Conclusion: This case shows a case of a child patient victim of animal bite, with lesions limited to the region of the face. The patient was followed up for a month and showed good wound healing without any complications. Keywords: Wounds and injuries, Bites and stings, Maxillofacial injuries, Dogs

  11. Conquering Athletic Injuries.

    Science.gov (United States)

    Taylor, Paul M., Ed.; Taylor, Diane K., Ed.

    The purpose of this book is to be a source of complete, reliable, and practical sports medicine information. Experts from the American Running and Fitness Association describe in clear language how overuse injuries occur, how to recognize and self-treat them, when to seek professional help, and how to prevent future injuries. The book also…

  12. Oxidation mechanisms occurring in wines

    OpenAIRE

    Oliveira, Carla Maria; Ferreira, António César Silva; Freitas, Victor De; Silva, Artur M. S.

    2011-01-01

    The present review aims to show the state of the art on the oxidation mechanisms occurring in wines, as well as the methods to monitor, classify and diagnose wine oxidation. Wine oxidation can be divided in enzymatic oxidation and non-enzymatic oxidation. Enzymatic oxidation almost entirely occurs in grape must and is largely correlated with the content of hydroxycinnamates, such as caffeoyltartaric acid and paracoumaroyltartaric acid, and flavan-3-ols. Non-enzymatic oxidation, al...

  13. Evaluation after Traumatic Brain Injury

    Science.gov (United States)

    Trudel, Tina M.; Halper, James; Pines, Hayley; Cancro, Lorraine

    2010-01-01

    It is important to determine if a traumatic brain injury (TBI) has occurred when an individual is assessed in a hospital emergency room after a car accident, fall, or other injury that affects the head. This determination influences decisions about treatment. It is essential to screen for the injury, because the sooner they begin appropriate…

  14. "Flipped classrooms" in training in maxillofacial surgery: preparation before the traditional didactic lecture?

    Science.gov (United States)

    Elledge, Ross; Houlton, Samantha; Hackett, Stephanie; Evans, Martin J

    2018-04-28

    While virtual learning environments (VLE) can be used in medical education as stand-alone educational interventions, they can also be used in preparation for traditional "face-to-face" training sessions as part of a "flipped classroom" model. We sought to evaluate the introduction of this model in a single module on maxillofacial radiology from a course on trauma skills. Course delegates were randomised into two groups: one was given access to an e-learning resource (test group) and the other attended a traditional didactic lecture (control group). Knowledge and confidence were assessed before and after the course with a 20-question single-best-answer paper and a 10-situation 100mm visual analogue scale (VAS) paper, respectively. All participants were then given free access to the VLE for 30days and were invited to take part in an e-survey. Neither group showed improvements in the single-best-answer scores, but both groups showed comparable improvements in VAS (control: median (range) values improved from 40.8 (17.7-82.5) mm to 62.8 (35.3-88.7) mm, p=0.001; test group: from 47.7 (10.9-58.1) mm to 60.5 (32.4-75.6) mm, p=0.005). Half of the respondents stated that they preferred the "flipped classroom" approach, and 22/22 stated that they would be "likely" or "very likely" to use an e-learning resource with expanded content. The "flipped classroom" approach was well received and there were comparable improvements in confidence. As maxillofacial radiology lends itself to online instruction with its reliance on the recognition of patterns, and problem-based approach to learning, a piloted e-learning resource could be developed in this area. Copyright © 2018 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  15. Student perception of two different simulation techniques in oral and maxillofacial surgery undergraduate training.

    Science.gov (United States)

    Lund, Bodil; Fors, Uno; Sejersen, Ronny; Sallnäs, Eva-Lotta; Rosén, Annika

    2011-10-12

    Yearly surveys among the undergraduate students in oral and maxillofacial surgery at Karolinska Institutet have conveyed a wish for increased clinical training, and in particular, in surgical removal of mandibular third molars. Due to lack of resources, this kind of clinical supervision has so far not been possible to implement. One possible solution to this problem might be to introduce simulation into the curriculum. The purpose of this study was to investigate undergraduate students' perception of two different simulation methods for practicing clinical reasoning skills and technical skills in oral and maxillofacial surgery. Forty-seven students participating in the oral and maxillofacial surgery course at Karolinska Institutet during their final year were included. Three different oral surgery patient cases were created in a Virtual Patient (VP) Simulation system (Web-SP) and used for training clinical reasoning. A mandibular third molar surgery simulator with tactile feedback, providing hands on training in the bone removal and tooth sectioning in third molar surgery, was also tested. A seminar was performed using the combination of these two simulators where students' perception of the two different simulation methods was assessed by means of a questionnaire. The response rate was 91.5% (43/47). The students were positive to the VP cases, although they rated their possible improvement of clinical reasoning skills as moderate. The students' perception of improved technical skills after training in the mandibular third molar surgery simulator was rated high. The majority of the students agreed that both simulation techniques should be included in the curriculum and strongly agreed that it was a good idea to use the two simulators in concert. The importance of feedback from the senior experts during simulator training was emphasised. The two tested simulation methods were well accepted and most students agreed that the future curriculum would benefit from

  16. Portfolio: a comprehensive method of assessment for postgraduates in oral and maxillofacial surgery.

    Science.gov (United States)

    Kadagad, Poornima; Kotrashetti, S M

    2013-03-01

    Post graduate learning and assessment is an important responsibility of an academic oral and maxillofacial surgeon. The current method of assessment for post graduate training include formative evaluation in the form of seminars, case presentations, log books and infrequently conducted end of year theory exams. End of the course theory and practical examination is a summative evaluation which awards the degree to the student based on grades obtained. Oral and maxillofacial surgery is mainly a skill based specialty and deliberate practice enhances skill. But the traditional system of assessment of post graduates emphasizes their performance on the summative exam which fails to evaluate the integral picture of the student throughout the course. Emphasis on competency and holistic growth of the post graduate student during training in recent years has lead to research and evaluation of assessment methods to quantify students' progress during training. Portfolio method of assessment has been proposed as a potentially functional method for post graduate evaluation. It is defined as a collection of papers and other forms of evidence that learning has taken place. It allows the collation and integration of evidence on competence and performance from different sources to gain a comprehensive picture of everyday practice. The benefits of portfolio assessment in health professions education are twofold: it's potential to assess performance and its potential to assess outcomes, such as attitudes and professionalism that are difficult to assess using traditional instruments. This paper is an endeavor for the development of portfolio method of assessment for post graduate student in oral and maxillofacial surgery.

  17. Evaluation of the clinical photographs in the Journal of Oral and Maxillofacial Surgery: from readers' perspectives.

    Science.gov (United States)

    Wu, Tianfu; Chen, Sulin; Xiong, Xuepeng

    2014-03-01

    This study was designed to evaluate clinical photographs published in the Journal of Oral and Maxillofacial Surgery (JOMS) and understand the current status of oral and maxillofacial surgery. A total of 1,317 photographs from the JOMS Volume 69 were assessed. These photographs were scored from 1 to 10 for the following parameters: sharpness; depth of field; exposure; composition; color or grayscale; background; position; distortion; label consistency; and white balance. Then, the distributions of scores were analyzed. Each score was compared with the average score. The effects of different subjects; emergency or nonemergency situations; and intraoperative, preoperative, or postoperative conditions on the quality of photographs were analyzed by conducting a nonparametric Kruskal-Wallis test. The total score of each photograph showed a left-skewed distribution, varying from 3 to 10, with an average score of 6.82. Four parameters, including sharpness, depth of field, exposure, and white balance, scored less than the average score. Photographs with an intraoral subject yielded the lowest score, with a significant difference (P photographs taken during a nonemergency situation was significantly higher than that during an emergency situation (6.84 vs 6.03; P Photographs of an intraoperative condition yielded a score significantly lower than those of pre- and postoperative conditions (6.53 vs 7.11 and 6.75, respectively; P photographs (148 of 325) displayed uncovered eyes and 57.1% of specimens (40 of 70) did not appear with a plotting scale. Sharpness, depth of field, exposure, and white balance should be considered to a greater extent than the other parameters when oral and maxillofacial photographs are taken, particularly for intraoral conditions, emergency situations, and intraoperative conditions. Enhanced parameters and protection of a patient's identity may significantly improve the average level of photographic quality. Crown Copyright © 2014. Published by

  18. Freeze dried bone allografts in dental and maxillofacial reconstructive surgery - experience in Malaysia

    International Nuclear Information System (INIS)

    Abd Rani Samsudin; Meor Zaidi Meor Kamal

    1999-01-01

    The utilisation of vascularised and free bone autografts remain the goal standard in maxillofacial reconstructive surgery in Malaysia, but the use of freeze dried bone allograft is still widely practiced in many centres with variable results. This study evaluate the effectiveness and clinical efficacy of using radiation sterilised freeze dried bone allografts in oral and maxillofacial reconstructive surgery. The bone grafts were prepared at the Malaysian National Tissue Bank. Seventy eight patients who had undergone oral and Maxillofacial surgical procedures with reconstruction using bone allografts were included in this study. 50 patients were male and 28 patients were female and their age ranged from 14 to 75 years. Forty two patients underwent enucleation of benign cystic lesions in the jaws, 15 patients underwent repair of orbital floor fractures, 6 patients of jaw fractures with partial loss of bone while 8 patients underwent augmentation of depressed cheek bone. Another 4 patients had partial resection of the mandible because of cancer and 3 patients had facial osteotomies. A follow up period of 12 months up to 4 years was carried out. The patients were assessed both clinically and radiologically throughout their follow up visits. Clinical assessment showed no evidence of rejection of the implanted freeze dried allografts. Bone allografts implanted as inlay grafts demonstrated a better clinical performance than onlay grafts and the poorest results were obtained following bridging bony defects in the jaws. Radiation sterilised freeze dried bone allografts produced at the Malaysian National Tissue Bank are bio-compatible, functional, and provide predictable results when applied to selected areas of the facial skeleton

  19. Effect of chemical disinfectants and accelerated aging on maxillofacial silicone elastomers: An In vitro Study

    Directory of Open Access Journals (Sweden)

    Anna Serene Babu

    2018-01-01

    Full Text Available Context: Maxillofacial prostheses need frequent refabrication due to degradation of color and deterioration of physical properties of the elastomer. Aims: This study attempted to evaluate the change in color stability, Shore A hardness, and surface roughness of two maxillofacial silicones, A-2186 and Cosmesil M511, when submitted to chemical disinfection and accelerated aging. Settings and Design: This was a comparative in vitro study. Subjects and Methods: The materials included two silicone elastomers – A-2186 and Cosmesil M511 (Factor II Incorporated – functional intrinsic red pigment and three disinfectants – Fittydent tablet, chlorhexidine gluconate 4%, and neutral soap. The specimens in each group of elastomer were evaluated initially for color, hardness, and surface roughness, which were further divided into subgroups and subjected to disinfection and accelerated aging. The evaluation of color was performed with the help of an ultraviolet reflectance spectrophotometer. Shore A hardness was evaluated using a durometer and surface roughness, with a digital roughness tester followed by scanning electron microscopy analysis. Statistical Analysis Used: Analysis of variance and Tukey's multiple comparison test were used for statistical analysis. Results: Accelerated aging caused a significant decrease in color, increase in Shore A hardness, and variation in surface roughness in both silicone elastomer groups. Chemical disinfection presented significant changes in color and surface roughness whereas no significant effect on Shore hardness, irrespective of the disinfectant used. Conclusions: The maxillofacial silicone elastomers presented deterioration in color, hardening, and significant variations in surface roughness when subjected to chemical disinfection and accelerated aging, which provides a valid baseline for future research.

  20. Evaluation of Ultrasonography as a Diagnostic Tool in Maxillofacial Space Infections

    Directory of Open Access Journals (Sweden)

    Praveen Kumar Pandey

    2011-11-01

    Full Text Available Objectives: The purpose of the study was to establish the role of ultrasonography in determining the involvement of specific fascial spaces in maxillofacial region and the stage of infection, in indicating the appropriate time for surgical intervention and to compare clinical and ultrasonographic findings.Material and Methods: Twenty five patients with fascial space infection in maxillofacial region were subjected to ultrasonographic examination following a detailed clinical and radiological examination. Ultrasonography guided needle aspiration was performed. Based on the findings, patients diagnosed with abscess were subjected to incision and drainage and those with cellulitis were subjected to medical line of treatment.Results: More than one fascial space was involved in all patients. On clinical examination 64 spaces were involved, of them 34 spaces had abscess formation and 30 spaces were in the stage of cellulitis. On ultrasonography examination, 28 spaces were reported to have abscess formation and 36 spaces were diagnosed to be in the stage of cellulitis. On comparative analysis of both clinical and ultrasonographic findings, ultrasonography was found to be sensitive in 65% of the cases and having specificity of 80%. It was registered statistically significant (P < 0.001 agreement between these two methods of assessment (kappa index = 0.814.Conclusions: Ultrasonography is a quick, widely available, relatively inexpensive, and painless procedure and can be repeated as often as necessary without risk to the patient. Thus ultrasonography is a valuable diagnostic aid to the oral and maxillofacial surgeon for early and accurate diagnosis of fascial space infection, their appropriate treatment and to limit their further spread.

  1. Trampoline injuries in children.

    Science.gov (United States)

    McDermott, C; Quinlan, J F; Kelly, I P

    2006-06-01

    We reviewed the records of children referred to our hospital between April and September 2005 who had been injured whilst trampolining. Of 88 such children there were 33 boys and 55 girls with a mean age of 8 years 6 months (2 years 4 months to 15 years 9 months). Most of the injuries (53; 60%) occurred when bouncing and 34 (39%) were secondary to falls from the trampoline. The cause of injury was unknown in one child. The injured child was supervised in only 35 cases (40%). In 31 (35%) cases, the injury was related to the presence of others on the trampoline. A total of 36 (40%) children required surgery. Fractures of the upper limbs occurred in 62 cases (70%). Injuries related to the recreational use of trampolines are a significant cause of childhood injury. Our results suggest strongly that there is a need for clear guidelines on safe and responsible use of domestic trampolines.

  2. [Stomatologic and maxillofacial pathology in a medieval population (10th-12th centuries) of southwestern France].

    Science.gov (United States)

    Barthelemy, I; Telmont, N; Crubezy, E; Rouge, D

    1999-08-01

    We present an assessment of the dental and maxillofacial pathology in a medieval population in southwestern France. One hundred and ninety eight mandibles and 29 craniofacial complexes were analysed. Dental and periodontal infectious pathology predominated. Third molar agenesia was quite frequent, concerning 25% of the mandibles. Third molar eruption was almost constant and in a normal position. Condylar process degeneration concerned 6% of the population. Three cases of traumatic pathology were observed, one case of long mandible was noted, and two cases of hypertrophic inferior alveolar process. Dento-mandibular maladjustment was uncommon. No unwedging of the maxillo-mandibular bone basis was observed.

  3. Paediatric treadmill friction injuries.

    Science.gov (United States)

    Jeremijenko, Luke; Mott, Jonathan; Wallis, Belinda; Kimble, Roy

    2009-05-01

    The aim of this study was to report on the severity and incidence of children injured by treadmills and to promote the implementation of safety standards. This retrospective review of children with treadmill friction injuries was conducted in a single tertiary-level burns centre in Australia between January 1997 and June 2007. The study revealed 37 children who sustained paediatric treadmill friction injuries. This was a presentation of 1% of all burns. Thirty-three (90%) of the injuries occurred in the last 3.5 years (January 2004 to June 2007). The modal age was 3.2 years. Thirty-three (90%) injuries were either full thickness or deep partial friction burns. Eleven (30%) required split thickness skin grafts. Of those who became entrapped, 100% required skin grafting. This study found that paediatric treadmill friction injuries are severe and increasing in incidence. Australian standards should be developed, implemented and mandated to reduce this preventable and severe injury.

  4. Soccer injuries in children

    International Nuclear Information System (INIS)

    Paterson, Anne

    2009-01-01

    Soccer is the most popular sport in the world, with FIFA recognising more than 265 million amateur players. Despite the fact that soccer is a contact sport, it is perceived to be relatively safe to play, a factor that has contributed to its status as the fastest growing team sport in the USA. Acute and minor injuries predominate in the statistics, with contusions and abrasions being the most commonly recorded. As would be expected, the majority of soccer injuries are to the lower limbs, with serious truncal and spinal trauma being rare. This article examines the type and anatomic location of injuries sustained by children and adolescents who play soccer, and the main mechanisms whereby such injuries occur. The risk factors underpinning injury occurrence are considered, along with injury avoidance tactics. (orig.)

  5. Soccer injuries in children

    Energy Technology Data Exchange (ETDEWEB)

    Paterson, Anne [Royal Belfast Hospital for Sick Children, Radiology Department, Belfast (United Kingdom)

    2009-12-15

    Soccer is the most popular sport in the world, with FIFA recognising more than 265 million amateur players. Despite the fact that soccer is a contact sport, it is perceived to be relatively safe to play, a factor that has contributed to its status as the fastest growing team sport in the USA. Acute and minor injuries predominate in the statistics, with contusions and abrasions being the most commonly recorded. As would be expected, the majority of soccer injuries are to the lower limbs, with serious truncal and spinal trauma being rare. This article examines the type and anatomic location of injuries sustained by children and adolescents who play soccer, and the main mechanisms whereby such injuries occur. The risk factors underpinning injury occurrence are considered, along with injury avoidance tactics. (orig.)

  6. Soccer injuries in children.

    Science.gov (United States)

    Paterson, Anne

    2009-12-01

    Soccer is the most popular sport in the world, with FIFA recognising more than 265 million amateur players. Despite the fact that soccer is a contact sport, it is perceived to be relatively safe to play, a factor that has contributed to its status as the fastest growing team sport in the USA. Acute and minor injuries predominate in the statistics, with contusions and abrasions being the most commonly recorded. As would be expected, the majority of soccer injuries are to the lower limbs, with serious truncal and spinal trauma being rare. This article examines the type and anatomic location of injuries sustained by children and adolescents who play soccer, and the main mechanisms whereby such injuries occur. The risk factors underpinning injury occurrence are considered, along with injury avoidance tactics.

  7. A statistical survey of x-ray CT cases at the Clinic of Oral and Maxillofacial Radiology, Chiba Hospital, Tokyo Dental College

    International Nuclear Information System (INIS)

    Kitagawa, Hiromi; Wakoh, Mamoru; Shibuya, Hitoshi; Yamada, Masayuki; Harada, Takuya; Yamamoto, Kazuhiro; Makihara, Masahiro; Kuroyanagi, Kinya

    1997-01-01

    Statistical study was performed of x-ray CT cases at the Clinic of Oral and Maxillofacial Radiology, Chiba Hospital, Tokyo Dental College since a Toshiba CT Scanner TCT-700S was settled in 1988, until December 1994. Total number of cases photographed was 2645 cases, Male; 1447 (54.7%), Female; 1198 cases (45.3%). Total number of cases yearly photographed have increased every year. 95.43% of the cases were the diseases of oral surgery regions. X-ray CT has been used to malignant tumors (730 cases; 29.7%), cyst (435 cases; 17.7%), inflammation (362 cases; 14.7%), benign tumors (261 cases; 10.6%), injury (171 cases; 7.0%), salivary gland diseases (126 cases; 5.1%) and others. The number of tumors and cyst have been increasing every year. Average number of slices in every diseases were counted. Malignant tumor, injury, temporomandibular joint diseases, and congenital anomalies and malformations were counted many slices. Percentages of number of enhanced CT cases have been increased every year. Recently, number of enhanced CT cases have more number than non-enhanced CT cases. This attitude is correlated with the number of malignant tumors which have been increasing every year. Total number of cases of three dimensional imaging CT (3D-CT) was 316 cases. 3D-CT has been used to injury (146 cases; 46.2%), temporomandibular joint diseases (52 cases; 16.4%), congenital anomalies and malformations (49 cases; 15.5%), tumors (21 cases; 6.7%), cyst (13 cases; 4.1%) and others. The need of x-ray CT in our field and the tendency of dental treatment at Chiba Hospital might be changed in the future. In order to this situation, this type of statistical study will be performed again. (author)

  8. Influence of Head Motion on the Accuracy of 3D Reconstruction with Cone-Beam CT: Landmark Identification Errors in Maxillofacial Surface Model.

    Directory of Open Access Journals (Sweden)

    Kyung-Min Lee

    Full Text Available The purpose of this study was to investigate the influence of head motion on the accuracy of three-dimensional (3D reconstruction with cone-beam computed tomography (CBCT scan.Fifteen dry skulls were incorporated into a motion controller which simulated four types of head motion during CBCT scan: 2 horizontal rotations (to the right/to the left and 2 vertical rotations (upward/downward. Each movement was triggered to occur at the start of the scan for 1 second by remote control. Four maxillofacial surface models with head motion and one control surface model without motion were obtained for each skull. Nine landmarks were identified on the five maxillofacial surface models for each skull, and landmark identification errors were compared between the control model and each of the models with head motion.Rendered surface models with head motion were similar to the control model in appearance; however, the landmark identification errors showed larger values in models with head motion than in the control. In particular, the Porion in the horizontal rotation models presented statistically significant differences (P < .05. Statistically significant difference in the errors between the right and left side landmark was present in the left side rotation which was opposite direction to the scanner rotation (P < .05.Patient movement during CBCT scan might cause landmark identification errors on the 3D surface model in relation to the direction of the scanner rotation. Clinicians should take this into consideration to prevent patient movement during CBCT scan, particularly horizontal movement.

  9. Injuries in Rugby Union football.

    Science.gov (United States)

    Davies, J E; Gibson, T

    In a prospective study of 185 players attached to 10 British rugby clubs, 151 injuries were recorded among 98 of them (53%) during a single season. Forwards sustained significantly more injuries than backs. The standard of rugby, players' body weights, degree of fitness, and presence of joint hypermobility did not affect the risk of injury. The leg was the most common site of injury. Head and neck injuries were significantly more common when play was static and on wet pitches. Scrummaging accounted for no neck injuries. Almost half the injuries occurred during the last quarter of games. Foul play might have caused as many as 47 (31%) of all reported injuries. Complete eradication of deliberately dangerous play would considerably reduce the high incidence of injuries in this sport.

  10. Subsequent Injuries Are More Common Than Injury Recurrences: An Analysis of 1 Season of Prospectively Collected Injuries in Professional Australian Football.

    Science.gov (United States)

    Finch, Caroline F; Cook, Jill; Kunstler, Breanne E; Akram, Muhammad; Orchard, John

    2017-07-01

    It is known that some people can, and do, sustain >1 injury over a playing season. However, there is currently little high-quality epidemiological evidence about the risk of, and relationships between, multiple and subsequent injuries. To describe the subsequent injuries sustained by Australian Football League (AFL) players over 1 season, including their most common injury diagnoses. Cohort study; Level of evidence, 3. Within-player linked injury data on all date-ordered match-loss injuries sustained by AFL players during 1 full season were obtained. The total number of injuries per player was determined, and in those with >1 injury, the Subsequent Injury Classification (SIC) model was used to code all subsequent injuries based on their Orchard Sports Injury Classification System (OSICS) codes and the dates of injury. There were 860 newly recorded injuries in 543 players; 247 players (45.5%) sustained ≥1 subsequent injuries after an earlier injury, with 317 subsequent injuries (36.9% of all injuries) recorded overall. A subsequent injury generally occurred to a different body region and was therefore superficially unrelated to an index injury. However, 32.2% of all subsequent injuries were related to a previous injury in the same season. Hamstring injuries were the most common subsequent injury. The mean time between injuries decreased with an increasing number of subsequent injuries. When relationships between injuries are taken into account, there is a high level of subsequent (and multiple) injuries leading to missed games in an elite athlete group.

  11. Naturally Occurring Radioactive Materials (NORM)

    International Nuclear Information System (INIS)

    Gray, P.

    1997-01-01

    This paper discusses the broad problems presented by Naturally Occuring Radioactive Materials (NORM). Technologically Enhanced naturally occuring radioactive material includes any radionuclides whose physical, chemical, radiological properties or radionuclide concentration have been altered from their natural state. With regard to NORM in particular, radioactive contamination is radioactive material in an undesired location. This is a concern in a range of industries: petroleum; uranium mining; phosphorus and phosphates; fertilizers; fossil fuels; forestry products; water treatment; metal mining and processing; geothermal energy. The author discusses in more detail the problem in the petroleum industry, including the isotopes of concern, the hazards they present, the contamination which they cause, ways to dispose of contaminated materials, and regulatory issues. He points out there are three key programs to reduce legal exposure and problems due to these contaminants: waste minimization; NORM assesment (surveys); NORM compliance (training)

  12. Naturally Occurring Radioactive Materials (NORM)

    Energy Technology Data Exchange (ETDEWEB)

    Gray, P. [ed.

    1997-02-01

    This paper discusses the broad problems presented by Naturally Occuring Radioactive Materials (NORM). Technologically Enhanced naturally occuring radioactive material includes any radionuclides whose physical, chemical, radiological properties or radionuclide concentration have been altered from their natural state. With regard to NORM in particular, radioactive contamination is radioactive material in an undesired location. This is a concern in a range of industries: petroleum; uranium mining; phosphorus and phosphates; fertilizers; fossil fuels; forestry products; water treatment; metal mining and processing; geothermal energy. The author discusses in more detail the problem in the petroleum industry, including the isotopes of concern, the hazards they present, the contamination which they cause, ways to dispose of contaminated materials, and regulatory issues. He points out there are three key programs to reduce legal exposure and problems due to these contaminants: waste minimization; NORM assesment (surveys); NORM compliance (training).

  13. Naturally occurring radionuclides in food

    International Nuclear Information System (INIS)

    Djujic, I.

    1995-01-01

    The naturally occurring radionuclides are the major source of radiation exposure to humans. The principal way of natural radiation exposure is the inhalation of 222 Rn decay products (about 85% of the total). The remainder is equally divided between internally deposited radionuclides, cosmic and terrestrial sources. In the present study, the content of 40 K, 210 Pb, 226 Ra, 230 Th, 232 Th and 238 U in representative food samples (milk, pork, beef, potatoes, wheat and corn flour) and samples of different food items that do not represent entire national production but provide interesting additional data for approximative calculation of naturally occurring radionuclide intake is presented. Daily weight of food eaten, participation of food groups, as well as daily intake by food of mentioned naturally occurring radionuclides in the Serbian diet was obtained on the base of house hold budget surveys. The result obtained for daily intake estimates in mBq for Serbian population are 78.1 ( 40 K), 38.2( 210 Pb), 52.3( 226 Ra), 2.0( 230 Th) and 12.5( 238 U). (author)

  14. MRI of overuse injury in elite athletes

    International Nuclear Information System (INIS)

    Koh, E.S.; Lee, J.C.; Healy, J.C.

    2007-01-01

    Overuse injuries are a common finding in elite athletes. Magnetic resonance imaging (MRI) is the optimal method for the diagnosis of overuse injury in athletes of all levels. We present a review of common and important overuse injuries occurring in elite athletes. A systematic approach based on the functional anatomic units - tendons, bones and joints - may assist in diagnosis of these injuries

  15. To evaluate the efficacy of biodegradable plating system for fixation of maxillofacial fractures: A prospective study.

    Science.gov (United States)

    Bali, Rishi K; Sharma, Parveen; Jindal, Shalu; Gaba, Shivani

    2013-07-01

    The present study was undertaken to evaluate the efficacy of biodegradable plating system for fixation of maxillofacial fractures and to study the morbidity associated with the use of biodegradable plates and screws. This prospective study consisted of 10 patients with maxillofacial fractures requiring open reduction and internal fixation. Fractures with infection, comminuted and pathological fractures were excluded. All were plated with biodegradable system (Inion CPS) using standard plating principles and observed for a total period of 24 weeks. Characteristics of the fractures, ease of use of bioresorbable plate/screw system and post operative complications were assessed. Of total 10 patients, eight patients were of midface fracture and two pediatric patients with mandibular fracture, with nine male and one female. The mean age was 32.8 years. Out of 20 plates and 68 screws applied to the 10 fractures sites; there were three incidences of screw breakage with no other intraoperative difficulties. Paresthesia of the infraorbital nerve was present in two patients, and recovered completely in four weeks after surgery. Fracture reduction was considered to be satisfactory in all cases. One patient developed postsurgical infection and was managed with oral antibiotics and analgesics. Favorable healing can be observed through the use of biodegradable plates and screws to stabilize selected midface fractures in patients of all ages, as well as mandible fractures in early childhood, however further studies with more sample size are required.

  16. The impact of cleft lip and palate repair on maxillofacial growth.

    Science.gov (United States)

    Shi, Bing; Losee, Joseph E

    2015-03-23

    Surgical correction is central to current team-approached cleft treatment. Cleft surgeons are always concerned about the impact of their surgical maneuver on the growth of the maxilla. Hypoplastic maxilla, concaved mid-face and deformed dental arch have constantly been reported after cleft treatments. It is very hard to completely circumvent these postoperative complications by current surgical protocols. In this paper, we discussed the factors that inhibit the maxillofacial growth on cleft patients. These factors included pre-surgical intervention, the timing of cleft palate and alveolae repair, surgical design and treatment protocol. Also, we made a review about the influence on the maxillary growth in un-operated cleft patients. On the basis of previous researches, we can conclude that most of scholars express identity of views in these aspects: early palatoplasty lead to maxilla growth inhibition in all dimensions; secondary alveolar bone graft had no influence on maxilla sagittal growth; cleft lip repair inhibited maxilla sagittal length in patients with cleft lip and palate; Veau's pushback palatoplasty and Langenbeck's palatoplasty with relaxing incisions were most detrimental to growth; Furlow palatoplasty showed little detrimental effect on maxilla growth; timing of hard palate closure, instead of the sequence of hard or soft palate repair, determined the postoperative growth. Still, scholars hold controversial viewpoints in some issues, for example, un-operated clefts have normal growth potential or not, pre-surgical intervention and pharyngoplasty inhibited maxillofacial growth or not.

  17. Choosing academia versus private practice: factors affecting oral maxillofacial surgery residents' career choices.

    Science.gov (United States)

    Lanzon, Jesse; Edwards, Sean P; Inglehart, Marita R

    2012-07-01

    This study explored how residents who intend to enter private practice versus academic careers differ in their background and educational characteristics, engagement in different professional activities, professional values, and satisfaction. Survey data were collected from 257 residents in oral and maxillofacial surgery programs in the United States. The responses of the respondents who planned a career in private practice (65%) and who considered academia (35%) were compared with χ(2) and independent-sample t tests. Residents who considered academia were more likely to be women (29% vs 8%; P career compared with residents interested in private practice. Future clinicians placed a higher value on having manageable hours and more time performing outpatient procedures than future educators. These findings showed, first, that the characteristics at the beginning of residency programs that are likely to indicate an increased interest in academic careers are being a woman, from a non-European American background, and having an interest in research. Second, once residents are admitted, different types of surgeries and different types of professional activities tend to appeal to residents who want to practice in private practice settings versus work in academia. Third, residents interested in academia have a relatively lower level of satisfaction compared with residents interested in practicing outside of academia. Copyright © 2012 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  18. Accuracy of clinical coding for procedures in oral and maxillofacial surgery.

    Science.gov (United States)

    Khurram, S A; Warner, C; Henry, A M; Kumar, A; Mohammed-Ali, R I

    2016-10-01

    Clinical coding has important financial implications, and discrepancies in the assigned codes can directly affect the funding of a department and hospital. Over the last few years, numerous oversights have been noticed in the coding of oral and maxillofacial (OMF) procedures. To establish the accuracy and completeness of coding, we retrospectively analysed the records of patients during two time periods: March to May 2009 (324 patients), and January to March 2014 (200 patients). Two investigators independently collected and analysed the data to ensure accuracy and remove bias. A large proportion of operations were not assigned all the relevant codes, and only 32% - 33% were correct in both cycles. To our knowledge, this is the first reported audit of clinical coding in OMFS, and it highlights serious shortcomings that have substantial financial implications. Better input by the surgical team and improved communication between the surgical and coding departments will improve accuracy. Copyright © 2016 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  19. An evaluation of the retromolar space for oral tracheal tube placement for maxillofacial surgery in children.

    Science.gov (United States)

    Arora, Suman; Rattan, Vidya; Bhardwaj, Neerja

    2006-11-01

    The eruption of the first and second permanent molar teeth may influence the size of the retromolar space. In this study we evaluated the adequacy of the retromolar space for retromolar intubation and any effect of eruption of the first and second permanent molar teeth on this space in children. Children 3-15 yr of age, undergoing surgery other than facial surgery were included for evaluation of the retromolar space. After standard oral tracheal intubation, the endotracheal tube was shifted to the retromolar space and the mandible was slowly closed to achieve centric occlusion. At the same time, any increase in airway resistance or decrease in oxygen saturation was noted. In the second part of the study, the feasibility of retromolar intubation in pediatric patients undergoing maxillofacial surgery with intraoperative maxillomandibular fixation was assessed. There was enough space for endotracheal tube placement in the retromolar region. The eruption of the first and second permanent molar teeth did not affect intubation. It was possible to achieve centric occlusion in 79 of 80 children with the endotracheal tube positioned in the retromolar space. Retromolar intubation was successfully accomplished in six pediatric patients undergoing maxillomandibular fixation and maxillofacial surgery. The retromolar space can be safely used for intubation in children when intraoperative maxillomandibular fixation, and simultaneous access to the nose and oral cavity are needed.

  20. A novel augmented reality system for displaying inferior alveolar nerve bundles in maxillofacial surgery.

    Science.gov (United States)

    Zhu, Ming; Liu, Fei; Chai, Gang; Pan, Jun J; Jiang, Taoran; Lin, Li; Xin, Yu; Zhang, Yan; Li, Qingfeng

    2017-02-15

    Augmented reality systems can combine virtual images with a real environment to ensure accurate surgery with lower risk. This study aimed to develop a novel registration and tracking technique to establish a navigation system based on augmented reality for maxillofacial surgery. Specifically, a virtual image is reconstructed from CT data using 3D software. The real environment is tracked by the augmented reality (AR) software. The novel registration strategy that we created uses an occlusal splint compounded with a fiducial marker (OSM) to establish a relationship between the virtual image and the real object. After the fiducial marker is recognized, the virtual image is superimposed onto the real environment, forming the "integrated image" on semi-transparent glass. Via the registration process, the integral image, which combines the virtual image with the real scene, is successfully presented on the semi-transparent helmet. The position error of this navigation system is 0.96 ± 0.51 mm. This augmented reality system was applied in the clinic and good surgical outcomes were obtained. The augmented reality system that we established for maxillofacial surgery has the advantages of easy manipulation and high accuracy, which can improve surgical outcomes. Thus, this system exhibits significant potential in clinical applications.

  1. The impact of cleft lip and palate repair on maxillofacial growth

    Science.gov (United States)

    Shi, Bing; Losee, Joseph E

    2015-01-01

    Surgical correction is central to current team-approached cleft treatment. Cleft surgeons are always concerned about the impact of their surgical maneuver on the growth of the maxilla. Hypoplastic maxilla, concaved mid-face and deformed dental arch have constantly been reported after cleft treatments. It is very hard to completely circumvent these postoperative complications by current surgical protocols. In this paper, we discussed the factors that inhibit the maxillofacial growth on cleft patients. These factors included pre-surgical intervention, the timing of cleft palate and alveolae repair, surgical design and treatment protocol. Also, we made a review about the influence on the maxillary growth in un-operated cleft patients. On the basis of previous researches, we can conclude that most of scholars express identity of views in these aspects: early palatoplasty lead to maxilla growth inhibition in all dimensions; secondary alveolar bone graft had no influence on maxilla sagittal growth; cleft lip repair inhibited maxilla sagittal length in patients with cleft lip and palate; Veau's pushback palatoplasty and Langenbeck's palatoplasty with relaxing incisions were most detrimental to growth; Furlow palatoplasty showed little detrimental effect on maxilla growth; timing of hard palate closure, instead of the sequence of hard or soft palate repair, determined the postoperative growth. Still, scholars hold controversial viewpoints in some issues, for example, un-operated clefts have normal growth potential or not, pre-surgical intervention and pharyngoplasty inhibited maxillofacial growth or not. PMID:25394591

  2. Open Access Publishing: A Study of Current Practice in Oral and Maxillofacial Surgery Research.

    Science.gov (United States)

    Tahim, Arpan; Bansal, Hitesh; Goodson, Alexander M C; Payne, Karl F B; Sabharwal, Sanjeeve

    2016-12-01

    Open access (OA) publication has become an increasingly common route for dissemination of scientific research findings. However, it remains a contentious issue with continued debate as to its impact on the peer-review process and a potential change in the quality of subsequent evidence published. There is little research that looks into OA in oral and maxillofacial surgery. We investigated the OA policy in the 30 relevant journals listed in the Institute for Scientific Information Web of Knowledge journal citation report, comparing bibliometric data and quality of evidence produced in journals offering OA and those with subscription-only policies. 3474 articles were graded for evidence level and the results correlated to journal OA status. 76.7 % of journals offered authors OA services. There was no difference between impact factor, self-citation rate, total citations or quality of evidence between OA and subscription journals. These findings should send clear messages to both clinicians and researchers and should re- assure readers that scientific findings that are disseminated in open access form do not differ in quality to those in subscription-only format. It should reinforce that open access formats are a credible way to display research findings in oral and maxillofacial surgery.

  3. [Contribution of platelet concentrates to oral and maxillo-facial surgery].

    Science.gov (United States)

    Bettega, G; Schir, E

    2012-09-01

    We evaluated the clinical contribution of platelet concentrates to oral and maxillo-facial surgery. This bibliographic research was made using the PubMed MeSH database with the following keywords: "platelet rich fibrin" (PRF), "platelet rich plasma" (PRP), "bone", "facial bone", "dental implant", and "blood platelet". The research was made without any date or language limitation since English summaries were available. All summaries were read to evaluate the relevance of the article. Only original articles and case reports were considered. The articles were classified as "in vitro studies", "animal experiments", or "clinical studies". The research was stopped on March 22, 2012. One hundred and sixty-nine articles were validated after excluding irrelevant articles, reviews, technical notes, and articles without English or French summaries. Seventeen were in vitro studies, 61 animal experiments, and 91 clinical studies. One hundred and ten complete articles were read to complete summary data. The data of in vitro studies univocally supports of using platelet concentrates. The data from animal experiment studies was less consensual and the validity of animal models was contested. The disparity of clinical study designs and the lack of rigorous methodology did not allow clearly determining platelet concentrate benefits for oral and maxillo-facial surgery. PRF or PRP clinical benefit has not been clearly demonstrated yet. French regulations relative to their use should be clarified. Copyright © 2012. Published by Elsevier Masson SAS.

  4. ADAM10 is essential for cranial neural crest-derived maxillofacial bone development

    Energy Technology Data Exchange (ETDEWEB)

    Tan, Yu, E-mail: tanyu2048@163.com; Fu, Runqing, E-mail: furunqing@sjtu.edu.cn; Liu, Jiaqiang, E-mail: liujqmj@163.com; Wu, Yong, E-mail: wyonger@gmail.com; Wang, Bo, E-mail: wb228@126.com; Jiang, Ning, E-mail: 179639060@qq.com; Nie, Ping, E-mail: nieping1011@sina.com; Cao, Haifeng, E-mail: 0412chf@163.com; Yang, Zhi, E-mail: wcums1981@163.com; Fang, Bing, E-mail: fangbing@sjtu.edu.cn

    2016-07-08

    Growth disorders of the craniofacial bones may lead to craniofacial deformities. The majority of maxillofacial bones are derived from cranial neural crest cells via intramembranous bone formation. Any interruption of the craniofacial skeleton development process might lead to craniofacial malformation. A disintegrin and metalloprotease (ADAM)10 plays an essential role in organ development and tissue integrity in different organs. However, little is known about its function in craniofacial bone formation. Therefore, we investigated the role of ADAM10 in the developing craniofacial skeleton, particularly during typical mandibular bone development. First, we showed that ADAM10 was expressed in a specific area of the craniofacial bone and that the expression pattern dynamically changed during normal mouse craniofacial development. Then, we crossed wnt1-cre transgenic mice with adam10-flox mice to generate ADAM10 conditional knockout mice. The stereomicroscopic, radiographic, and von Kossa staining results showed that conditional knockout of ADAM10 in cranial neural crest cells led to embryonic death, craniofacial dysmorphia and bone defects. Furthermore, we demonstrated that impaired mineralization could be triggered by decreased osteoblast differentiation, increased cell death. Overall, these findings show that ADAM10 plays an essential role in craniofacial bone development. -- Highlights: •We firstly reported that ADAM10 was essentially involved in maxillofacial bone development. •ADAM10 cKO mice present craniofacial dysmorphia and bone defects. •Impaired osteoblast differentiation,proliferation and apoptosis underlie the bone deformity.

  5. Maxillofacial osseous reconstruction using the angular branch of the thoracodorsal vessels.

    LENUS (Irish Health Repository)

    Dolderer, Jürgen H

    2010-09-01

    Mandibular and maxillary resections can produce complex three-dimensional defects requiring skeletal, soft tissue, and epithelial reconstruction. The subscapular vascular axis offers a source of skin, bone, and muscle on a single pedicle for microvascular flap transfer. We reviewed four cases where the subscapular vascular pedicle was used as a source of tissue for complex facial reconstructions in maxillofacial defects. Reconstruction of these complex defects was performed with a latissimus dorsi muscle or myocutaneous flap in combination with the lateral border of the scapula, harvested on the angular branch of the thoracodorsal vessels. There were three cases of maxillectomy and one case of partial mandibulectomy for malignant tumors. In each case, the angular branch of the thoracodorsal artery supplied 6 to 8 cm of the lateral border of the scapula and a latissimus dorsi myocutaneous flap was used for soft tissue reconstruction. Follow-up ranged from 9 months to 3 years and in all cases there was successful bony union. Shoulder movement was normal. This series encourages the further use of subscapular axis flaps as flexible sources of combined myocutaneous and osseous flaps on a single vascular pedicle in cases of complex maxillofacial reconstruction.

  6. ADAM10 is essential for cranial neural crest-derived maxillofacial bone development

    International Nuclear Information System (INIS)

    Tan, Yu; Fu, Runqing; Liu, Jiaqiang; Wu, Yong; Wang, Bo; Jiang, Ning; Nie, Ping; Cao, Haifeng; Yang, Zhi; Fang, Bing

    2016-01-01

    Growth disorders of the craniofacial bones may lead to craniofacial deformities. The majority of maxillofacial bones are derived from cranial neural crest cells via intramembranous bone formation. Any interruption of the craniofacial skeleton development process might lead to craniofacial malformation. A disintegrin and metalloprotease (ADAM)10 plays an essential role in organ development and tissue integrity in different organs. However, little is known about its function in craniofacial bone formation. Therefore, we investigated the role of ADAM10 in the developing craniofacial skeleton, particularly during typical mandibular bone development. First, we showed that ADAM10 was expressed in a specific area of the craniofacial bone and that the expression pattern dynamically changed during normal mouse craniofacial development. Then, we crossed wnt1-cre transgenic mice with adam10-flox mice to generate ADAM10 conditional knockout mice. The stereomicroscopic, radiographic, and von Kossa staining results showed that conditional knockout of ADAM10 in cranial neural crest cells led to embryonic death, craniofacial dysmorphia and bone defects. Furthermore, we demonstrated that impaired mineralization could be triggered by decreased osteoblast differentiation, increased cell death. Overall, these findings show that ADAM10 plays an essential role in craniofacial bone development. -- Highlights: •We firstly reported that ADAM10 was essentially involved in maxillofacial bone development. •ADAM10 cKO mice present craniofacial dysmorphia and bone defects. •Impaired osteoblast differentiation,proliferation and apoptosis underlie the bone deformity.

  7. Transcatheter embolization for high blood flow vascular malformations of oral maxillofacial region

    International Nuclear Information System (INIS)

    Sun Zengtao; Liu Zuoqin; Li Jijun; Tang Jun; Shang Jianqiang; Chen Jie

    2007-01-01

    Objective: To explore the treatment and efficiency of high blood flow vascular malformations of oral maxillofacial region with super-selective arterial embolization. Methods: 18 cases underwent angiography of the head and neck before treatment and then followed by super-selective catheterization with microcatheter to embolize the feeding vessels of the vascular malformations with PVA. 8 cases underwent surgical excision within 72 hours after the embolization and the other 10 cases passed through the arterial radical emboliztion treatment. Results: Technical success ratio reached 100% with no complications causing skin necrosis or incorrect arterial embolization else where in the skull. All 8 cases undergone preoperative embolization showed obviously less bleeding, easier removal of the mass and reduction of operation time. 10 cases with radical arterial embolization manifested reduction of swelling and improvement of organ function within 1 to 24 months after the procedure. 5 patients were cured with only once operation, 4 cases with twice operation and 1 with the thrice. Conclusions: Aterial embolization is a safe and effective method in the treatment of high blood flow vascular malformations of oral maxillofacial region. (authors)

  8. 3D cinematic rendering of the calvarium, maxillofacial structures, and skull base: preliminary observations.

    Science.gov (United States)

    Rowe, Steven P; Zinreich, S James; Fishman, Elliot K

    2018-06-01

    Three-dimensional (3D) visualizations of volumetric data from CT have gained widespread clinical acceptance and are an important method for evaluating complex anatomy and pathology. Recently, cinematic rendering (CR), a new 3D visualization methodology, has become available. CR utilizes a lighting model that allows for the production of photorealistic images from isotropic voxel data. Given how new this technique is, studies to evaluate its clinical utility and any potential advantages or disadvantages relative to other 3D methods such as volume rendering have yet to be published. In this pictorial review, we provide examples of normal calvarial, maxillofacial, and skull base anatomy and pathological conditions that highlight the potential for CR images to aid in patient evaluation and treatment planning. The highly detailed images and nuanced shadowing that are intrinsic to CR are well suited to the display of the complex anatomy in this region of the body. We look forward to studies with CR that will ascertain the ultimate value of this methodology to evaluate calvarium, maxillofacial, and skull base morphology as well as other complex anatomic structures.

  9. The face of war: The initial management of modern battlefield ballistic facial injuries

    OpenAIRE

    A Breeze; A J Gibbons

    2011-01-01

    There is an increased incidence of maxillofacial trauma in conflicts of the 21st century in comparison to those of the 20th century. This is attributed to the asymmetrical nature of modern war with the increased use of improvised explosive devices and improved thoraco-abdominal protection provided by current body armour. This paper aims to briefly review the principles of the initial management of modern battlefield ballistic injuries. The opinions given in this paper are those of the authors...

  10. The Injury Profile of an Australian Specialist Policing Unit

    Directory of Open Access Journals (Sweden)

    Brianna Larsen

    2016-03-01

    Full Text Available This study investigated the injuries sustained by an Australian specialist police division. Injury records spanning four-years were analyzed. The role being performed when the injury occurred, injury cause, body part injured, and injury-related costs were quantified. The percentage of personnel injured multiple times was documented. One hundred and thirty eight personnel reported injuries, 58 of these on multiple occasions. This resulted in 229 injuries and 76 claims being raised. Half of the injuries occurred during operational policing tasks, however training activities accounted for >30% of injuries. The most common injury was strain/sprain, and upper body injuries were 2.5-times more common than lower-body or torso injuries. 1107 shifts were lost, and injuries cost the organization $487,159 (Australian Dollars over the four-year period. The injury costs (both financial and in manpower may prompt policy makers to review the current training and post-injury rehabilitation protocols.

  11. Sports Injuries

    Science.gov (United States)

    ... sometimes you can injure yourself when you play sports or exercise. Accidents, poor training practices, or improper ... can also lead to injuries. The most common sports injuries are Sprains and strains Knee injuries Swollen ...

  12. Golf Injuries

    Science.gov (United States)

    ... Our Newsletter Donate Blog Skip breadcrumb navigation Preventing Golf Injuries Golf looks like an easy game to ... WHAT TYPES OF INJURIES ARE MOST COMMON IN GOLF? Acute injuries are usually the result of a ...

  13. Early occurring and continuing effects

    International Nuclear Information System (INIS)

    Scott, B.R.; Hahn, F.F.

    1985-01-01

    This chapter deals with health-risk estimates for early and continuing effects of exposure to ionizing radiations that could be associated with light water nuclear power plants accidents. Early and continuing effects considered are nonneoplastic diseases and symptoms that normally occur soon after radiation exposure, but may also occur after years have passed. They are generally associated with relatively high (greater than 1 Gy) doses. For most of the effects considered, there is a practical dose threshold. Organs of primary interest, because of their high sensitivity or the likelihood of receiving a large radiation dose, are bone marrow, gastrointestinal tract, thyroid glands, lungs, skin, gonads, and eyes. In utero exposure of the fetus is also considered. New data and modeling techniques available since publication of the Reactor Safety Study (WASH 1400, 1975) were used along with data cited in the Study to develop improved health-risk models for morbidity and mortality. The new models are applicable to a broader range of accident scenarios, provide a more detailed treatment of dose protraction effects, and include morbidity effects not considered in the Reactor Safety Study. 115 references, 20 figures, 19 tables

  14. Naturally-occurring alpha activity

    Energy Technology Data Exchange (ETDEWEB)

    Mayneord, W V

    1960-12-01

    In view of the difficulties of assessing the significance of man-made radioactivity it is important to study for comparison the background of natural radioactivity against which the human race has evolved and lives. It is also important to define the present levels of activity so that it will be possible to detect and study as quickly as possible any changes which may occur owing to the release into the environment of new radioactive materials. Moreover, by the study of the behaviour of natural radioactivity light may be shed upon that of the artificially produced isotopes and a number of analogies traced between the two groups. These concepts have led to studies of naturally-occurring radioactive materials alongside a programme of research into fission products in food, water and air, as well as studies of the metabolism of both sets of materials in the human body. Since the last report there has been a useful increase in our knowledge of natural radioactivity in the biosphere, and its levels relative to the new man-made activities. These studies have necessitated technical developments, particularly in the methods of measuring and identifying alpha-ray emitters, to which group many of the more important natural radioactive materials belong.

  15. Ankle ligament injuries

    Directory of Open Access Journals (Sweden)

    Per A.F.H. Renström

    1998-06-01

    Full Text Available Acute ankle ligament sprains are common injuries. The majority of these occur during athletic participation in the 15 to 35 year age range. Despite the frequency of the injury, diagnostic and treatment protocols have varied greatly. Lateral ligament complex injuries are by far the most common of the ankle sprains. Lateral ligament injuries typically occur during plantar flexion and inversion, which is the position of maximum stress on the anterotalofibular liagment (ATFL. For this reason, the ATFL is the most commonly torn ligament during an inversion injury. In more severe inversion injuries the calcaneofibular (CFL, posterotalofibular (PTFL and subtalar ligament can also be injured. Most acute lateral ankle ligament injuries recover quickly with nonoperative management. The treatment program, called "functional treatment," includes application of the RICE principle (rest, ice, compression, and elevation immediately after the injury, a short period of immobilization and protection with an elastic or inelastic tape or bandage, and early motion exercises followed by early weight bearing and neuromuscular ankle training. Proprioceptive training with a tilt board is commenced as soon as possible, usually after 3 to 4 weeks. The purpose is to improve the balance and neuromuscular control of the ankle. Sequelae after ankle ligament injuries are very common. As much as 10% to 30% of patients with a lateral ligament injury may have chronic symptoms. Symptoms usually include persistent synovitis or tendinitis, ankle stiffness, swelling, and pain, muscle weakness, and frequent giving-way. A well designed physical therapy program with peroneal strengthening and proprioceptive training, along with bracing and/or taping can alleviate instability problems in most patients. For cases of chronic instability that are refractory to bracing and external support, surgical treatment can be explored. If the chronic instability is associated with subtalar instability

  16. Injuries in professional Rugby Union.

    Science.gov (United States)

    Targett, S G

    1998-10-01

    To document injury rates in professional rugby players in the Rugby Super 12 competition and to act as a pilot study for future studies of rugby injuries. Prospective longitudinal study encompassing the 1997 Super 12 rugby season. A New Zealand Super 12 rugby squad. 25 professional rugby players (replacement players were used for unavailable players, so although 30 different players were used during the season, there were only 25 in the squad at any one time). An "injury" was defined as something that prevented a player from taking part in two training sessions, from playing the next week, or something requiring special medical treatment (suturing or special investigations). An injury was "significant" if it prevented the player from being able to play one week after sustaining it (that is, if it made the player miss the next match). The overall injury rate was 120/1000 player hours. The rate of significant injuries was 45/1000 player hours. Those playing the position of "forward" had a higher overall injury rate than other players, but there was no difference in significant injury rate between the forwards and the backs. Injuries that caused players to miss game time occurred almost exclusively during the pre-season program or in the final third of the season. The majority of injuries were musculo-tendinous sprains or strains. The phase of play responsible for the majority of injuries was the tackle. The most frequently injured body part was the head and face. No catastrophic injuries occurred during the study period. Injury rates increase with increasing grade of rugby, injury rates in the Super 12 competition being higher than in first grade rugby. There is very little quality data on rugby injuries, and the few studies available use different methods of data collection and injury definition. There is a pressing need for the collection of accurate ongoing epidemiological data on injuries in rugby.

  17. Naturally occurring methyl salicylate glycosides.

    Science.gov (United States)

    Mao, Ping; Liu, Zizhen; Xie, Meng; Jiang, Rui; Liu, Weirui; Wang, Xiaohong; Meng, Shen; She, Gaimei

    2014-01-01

    As an important part of non steroids anti-inflammation drug (NSAIDs), salicylate has developed from natural substance salicylic acid to natrium salicylicum, to aspirin. Now, methyl salicylate glycoside, a new derivative of salicylic acid, is modified with a -COOH group integrated one methyl radical into formic ether, and a -OH linked with a monosaccharide, a disaccharide or a trisaccharide unit by glycosidic linkage. It has the similar pharmacological activities, anti-inflammatory, analgesic, antipyretic and antithrombotic as the previous salicylates' without resulting in serious side effects, particularly the gastrointestinal toxicity. Owing to the superiority of those significant bioactivities, methyl salicylate glycosides have became a hot research area in NSAIDs for several years. This paper compiles all 9 naturally occurring methyl salicylate glycosides, their distribution of the resource and pharmacological mechanism, which could contribute to the new drug discovery.

  18. Lawnmower injuries in children.

    LENUS (Irish Health Repository)

    Nugent, Nora

    2012-02-03

    OBJECTIVE: Power lawnmowers can pose significant danger of injury to both the operator and the bystander, from direct contact with the rotary blades or missile injury. Our objective was to review our experience with paediatric lawnmower-associated trauma, and the safety recommendations available to operators of power lawnmowers. METHODS: The patient cohort comprised paediatric (<16 years of age) patients treated for lawnmower-associated trauma, by the plastic surgery service, between 1996 and 2003. These patients were identified retrospectively. Age at the time of injury, location and extent of bony and soft tissue injuries sustained, treatment instituted and clinical outcome were recorded. Brochures and instruction manuals of six lawnmower manufacturers were reviewed, and safety recommendations noted. RESULTS: Fifteen patients were identified. The majority of injuries occurred from direct contact with the rotary blades (93%); the remaining child sustained a burn injury. Fourteen children (93%) required operative intervention. Seven patients (46%) sustained injuries resulting in amputation, two of whom had major limb amputations. All children, except the burns patient, underwent wound debridement and received antibiotic therapy. Reconstructive methods ranged from primary closure to free tissue transfer. Many patients required multiple procedures. In all instruction manuals, instructions to keep children and pets indoors or out of the yard when mowing were found. CONCLUSIONS: Lawnmower injuries can be devastating, particularly in children. Many victims have lasting deformities as a result of their injuries. Awareness of and stringent adherence to safety precautions during use of power lawnmowers can prevent many of these accidents.

  19. Skateboarding injuries of today

    Science.gov (United States)

    Forsman, L; Eriksson, A

    2001-01-01

    Background—Skateboarding injuries have increased with the rise in popularity of the sport, and the injury pattern can be expected to have changed with the development of both skateboard tricks and the materials used for skateboard construction. Objective—To describe the injury pattern of today. Methods—The pattern of injuries, circumstances, and severity were investigated in a study of all 139 people injured in skateboarding accidents during the period 1995–1998 inclusive and admitted to the University Hospital of Umeå. This is the only hospital in the area, serving a population of 135 000. Results—Three of the 139 injured were pedestrians hit by a skateboard rider; the rest were riders. The age range was 7–47 years (mean 16). The severity of the injuries was minor (AIS 1) to moderate (AIS 2); fractures were classified as moderate. The annual number of injuries increased during the study period. Fractures were found in 29% of the casualties, and four children had concussion. The most common fractures were of the ankle and wrist. Older patients had less severe injuries, mainly sprains and soft tissue injuries. Most children were injured while skateboarding on ramps and at arenas; only 12 (9%) were injured while skateboarding on roads. Some 37% of the injuries occurred because of a loss of balance, and 26% because of a failed trick attempt. Falls caused by surface irregularities resulted in the highest proportion of the moderate injuries. Conclusions—Skateboarding should be restricted to supervised skateboard parks, and skateboarders should be required to wear protective gear. These measures would reduce the number of skateboarders injured in motor vehicle collisions, reduce the personal injuries among skateboarders, and reduce the number of pedestrians injured in collisions with skateboarders. Key Words: skateboard; injury; prevention PMID:11579065

  20. What occurred in the reactors

    International Nuclear Information System (INIS)

    Kudo, Kazuhiko

    2013-01-01

    Described is what occurred in the reactors of Fukushima Daiichi Nuclear Power Plant at the Tohoku earthquake and tsunami (Mar. 11, 2011) from the aspect of engineering science. The tsunami attacked the Plant 1 hr after the quake. The Plant had reactors in buildings no.1-4 at 10 m height from the normal sea level which was flooded by 1.5-5.5 m high wave. All reactors in no.1-6 in the Plant were the boiling water type, and their core nuclear reactions were stopped within 3 sec due to the first quake by control rods inserted automatically. Reactors in no.1-5 lost their external AC power sources by the breakdown and subsequent submergence (no.1-4) of various equipments and in no.1, 2 and 4, the secondary DC power was then lost by the battery death. Although the isolation condenser started to cool the reactor in no.1 after DC cut, its valve was then kept closed to heat up the reactor, leading to the reaction of heated Zr in the fuel tube and water to yield H 2 which was accumulated in the building: the cause of hydrogen explosion on 12th. The reactor in no.2 had the reactor core isolation cooling system (RCIC) which operated normally for few hrs, then probably stopped to heat up the reactor, resulting in meltdown of the core but no explosion occurred because of the opened door of the blowout panel on the wall by the blast of no.1 explosion. The reactor in no.3 had RCIC and high pressure coolant injection system, but their works stopped to result in the core damage and H 2 accumulation leading to the explosion on 14th. The reactor in no.4 had not been operated because of its periodical annual examination, but was explored on 15th, of which cause was thought to be due to backward flow of H 2 from no.3. Finally, the author discusses about this accident from the industrial aspect of the design of safety level (defense in depth) on international views, and problems and tasks given. (T.T.)

  1. Weight-training injuries. Common injuries and preventative methods.

    Science.gov (United States)

    Mazur, L J; Yetman, R J; Risser, W L

    1993-07-01

    The use of weights is an increasingly popular conditioning technique, competitive sport and recreational activity among children, adolescents and young adults. Weight-training can cause significant musculoskeletal injuries such as fractures, dislocations, spondylolysis, spondylolisthesis, intervertebral disk herniation, and meniscal injuries of the knee. Although injuries can occur during the use of weight machines, most apparently happen during the aggressive use of free weights. Prepubescent and older athletes who are well trained and supervised appear to have low injury rates in strength training programmes. Good coaching and proper weightlifting techniques and other injury prevention methods are likely to minimise the number of musculoskeletal problems caused by weight-training.

  2. Badminton injuries in youth competitive players.

    Science.gov (United States)

    Goh, S L; Mokhtar, A H; Mohamad Ali, M R

    2013-02-01

    The aim of the study was to examine sports injury pattern and establish cost of injuries in relation to training of 58 competitive badminton players in a Malaysian National Sports School. This one-year prospective observational study recruited all the 13-16 year old students after obtaining informed consent from their appointed guardian. All participants were requested to report any injuries, which were pain or disabilities that occur within the study period (September 1, 2008 to August 31, 2009) either during training or competition. Injured students were to seek treatment from the researcher(s) who made weekly visits and they were then followed up accordingly until they return to full training. Details and progress of the injuries were documented during each visit. Sixty-three injuries were recorded. Soft tissue sprains/strains were the commonest injury (64%). About one third of the injuries occurred in the lower limb especially the knees and was followed by back injuries; 38% of the injuries did not require training modification, half of these injuries resumed training within one week. Upon full training, half of them were still symptomatic. Injury risk was 57%; injury rate was 0.9 injuries/ player/1000 training hours. Badminton injuries mostly involved the lower limb and almost all overuse injuries occurred in the lower limb. However, badminton injuries as a whole were predominantly sprains and strains, and not overuse in nature as widely believed.

  3. The role of 3D Helical CT in the reconstructive treatment of maxillofacial cancers

    International Nuclear Information System (INIS)

    De Rosa, V.; Ziviello, M.; Ionna, F.; Mozzillo, N.; Parascandolo, S.

    2000-01-01

    Purpose of this work is to investigate the role of Helical CT and the usefulness of three-dimensional (3D) imaging for pre-operative planning and follow-up of reconstructive maxillofacial surgery with alloplastic material in neoplastic disease involving this region. From 1996 to 1999 eleven patients were examined with Helical CT and 3D images for planning of maxillofacial plastic and reconstructive surgery for advanced cancer of this anatomically complex region. A 3D-modulated titanium mesh (100%) or micro nets was used to rebuild the anterior surface of maxillary bone and the orbital floor. The mesh was cut to the appropriate size and shape and curved where necessary. Within the residual sinusal cavity a siliconed filling was used surmounting an acrylic prosthesis with dental arch to rebuild the palate. A rehydrated bovine pericardium was affixed and moduled on the borders in two cases only. Three-dimensionally reconstructed CT images were obtained preoperatively and at least 6 months postoperatively in all patients. The images were generated on a computer workstation using the shaded surface display (SSD) software with threshold values ranging 425 to 630 HU, and a more closed window for the imaging of titanium mesh/bone interface in the post surgical follow-up. It was obtained an excellent complete spatial depiction of maxillo facial region both before and after surgery, with no artefacts so important as to affect the 3D reconstruction process and the image quality. Together with the head-neck surgical team it could be worked for preoperative planning through CT scans by different 3D points of view. The 3D reconstructed follow-up scans showed good filling of the defect in the area where the titanium mesh had been used. Then efficacious bone modelling and good biocompatibility of the alloplastic material were seen in all patients, with no inflammatory reactions. Titanium is a well-known material, which is widely used for cranioplasty. It is a radiolucent, non

  4. Automated classification of maxillofacial cysts in cone beam CT images using contourlet transformation and Spherical Harmonics.

    Science.gov (United States)

    Abdolali, Fatemeh; Zoroofi, Reza Aghaeizadeh; Otake, Yoshito; Sato, Yoshinobu

    2017-02-01

    Accurate detection of maxillofacial cysts is an essential step for diagnosis, monitoring and planning therapeutic intervention. Cysts can be of various sizes and shapes and existing detection methods lead to poor results. Customizing automatic detection systems to gain sufficient accuracy in clinical practice is highly challenging. For this purpose, integrating the engineering knowledge in efficient feature extraction is essential. This paper presents a novel framework for maxillofacial cysts detection. A hybrid methodology based on surface and texture information is introduced. The proposed approach consists of three main steps as follows: At first, each cystic lesion is segmented with high accuracy. Then, in the second and third steps, feature extraction and classification are performed. Contourlet and SPHARM coefficients are utilized as texture and shape features which are fed into the classifier. Two different classifiers are used in this study, i.e. support vector machine and sparse discriminant analysis. Generally SPHARM coefficients are estimated by the iterative residual fitting (IRF) algorithm which is based on stepwise regression method. In order to improve the accuracy of IRF estimation, a method based on extra orthogonalization is employed to reduce linear dependency. We have utilized a ground-truth dataset consisting of cone beam CT images of 96 patients, belonging to three maxillofacial cyst categories: radicular cyst, dentigerous cyst and keratocystic odontogenic tumor. Using orthogonalized SPHARM, residual sum of squares is decreased which leads to a more accurate estimation. Analysis of the results based on statistical measures such as specificity, sensitivity, positive predictive value and negative predictive value is reported. The classification rate of 96.48% is achieved using sparse discriminant analysis and orthogonalized SPHARM features. Classification accuracy at least improved by 8.94% with respect to conventional features. This study

  5. Earl occurring and continuing effects

    International Nuclear Information System (INIS)

    Scott, B.R.; Hahn, F.F.

    1989-01-01

    This chapter develops health-risk models for early and continuing effects of exposure to beta or gamma radiation that could be associated with light water nuclear power plant accidents. The main purpose of the chapter is to provide details on each health-risk model and on the data used. Early and continuing effects considered are prodromal symptoms and nonneoplastic diseases that usually occur soon after a brief radiation exposure. These effects are generally associated with relatively high (greater than 1 Gy) absorbed organ doses. For most of the effects considered, there is an absorbed organ dose threshold below which no effects are seen. Some information is provided on health effects observed in victims of the Chernobyl power plant accident. Organs of primary interest, because of their high sensitivity or their potential for receiving large doses, are bone marrow, gastrointestinal tract, thyroid glands, lungs, skin, gonads, and eyes. Exposure of the fetus is also considered. Additional data and modeling techniques available since publication of the Reactor Safety Study were used to obtain models for morbidity and mortality

  6. Does overtraining occur in triathletes?

    Directory of Open Access Journals (Sweden)

    I Margaritis

    2003-06-01

    Full Text Available 1. Objective: Long distance triathlon training is characterized by considerably high volume training loads. This volume can provoke an overtraining state. The aim of the study was to determine whether overtraining occurs in well-trained male triathletes in relation with their volume training loads. 2. Experimental design: A questionnaire investigation was completed two days before the Nice long-distance triathlon (October 1995: 4-km swim, 120-km bike ride and 30-km run. 3. Participants: Ninety-three well-trained male triathletes who took part in the triathlon race. 4. Measures: A questionnaire to relate clinical symptoms, which are known to appear in case of overtraining, was collected. 5. Results: 39.8% of the questioned triathletes reported a decrease in triathlon performances within the last month preceding the race. Moreover, these triathletes exhibited significantly more overtraining-relied symptoms than the others (5.9±3.8 vs 3.4±2.6, P<0.05. Surprisingly, the occurrence of overtraining in triathletes appears not to depend on the volume training loads. 6. Conclusions: These results suggest that overtraining has to be considered in the case of triathletes. This preliminary study evidences the need for further investigation in order to monitor triathletes training respond and prevent overtraining.

  7. [Changing approaches to traumatic injuries to primary and permanent teeth based on the reports published in 'Fogorvosi Szemle' in the past 100 years].

    Science.gov (United States)

    Tarján, Ildikó; Gábris, Katalin

    2009-02-01

    Most of the external forces hitting the body (automobile injuries, sport injuries, job accidents, falls, hits and fights) reach the head, and especially the oral and maxillofacial region. Statistics show the head is injured in more than 70 per cent of car accidents. The incidence of head injuries, specifically tooth injuries, is high among both infancy and school children. Authors give a review about the changing approaches of treatment principles in the reports published in the Hungarian dental journal 'Fogorvosi Szemle' in the past 100 years, and how today's modern treatment trends have evolved.

  8. Dental and maxillofacial abnormalities in long-term survivors of childhood cancer: effects of treatment with chemotherapy and radiation to the head and neck

    International Nuclear Information System (INIS)

    Jaffe, N.; Toth, B.B.; Hoar, R.E.; Ried, H.L.; Sullivan, M.P.; McNeese, M.D.

    1984-01-01

    Sixty-eight long-term survivors of childhood cancer were evaluated for dental and maxillofacial abnormalities. Forty-five patients had received maxillofacial radiation for lymphoma, leukemia, rhabdomyosarcoma, and miscellaneous tumors. Forty-three of the 45 patients and the remaining 23 who had not received maxillofacial radiation also received chemotherapy. Dental and maxillofacial abnormalities were detected in 37 of the 45 (82%) radiated patients. Dental abnormalities comprised foreshortening and blunting of roots, incomplete calcification, premature closure of apices, delayed or arrested tooth development, and caries. Maxillofacial abnormalities comprised trismus, abnormal occlusal relationships, and facial deformities. The abnormalities were more severe in those patients who received radiation at an earlier age and at higher dosages. Possible chemotherapeutic effects in five of 23 patients who received treatment for tumors located outside the head and neck region comprised acquired amelogenesis imperfecta, microdontia of bicuspid teeth, and a tendency toward thinning of roots with an enlarged pulp chamber. Dental and maxillofacial abnormalities should be recognized as a major consequence of maxillofacial radiation in long-term survivors of childhood cancer, and attempts to minimize or eliminate such sequelae should involve an effective interaction between radiation therapists, and medical and dental oncologists

  9. Injuries in group kept horses

    DEFF Research Database (Denmark)

    Mejdell, C.M.; Jorgensen, G.M.; Keeling, L.

    2014-01-01

    developed and validated a scoring system for external injuries in horses to be able to record the severity of a lesion in a standardized and simple way under field conditions. The scoring system has five categories from insignificant loss of hair to severe, life threatening injuries. It was used...... of different breeds, age and gender. Most injuries occurred the day after mixing. Injuries of the more severe categories 4 and 5, which normally would necessitate veterinary care and/or loss of function for some time, were not observed at all. The minor injuries categorized as 1-2 counted for 99% of the total...

  10. Epidemiological Review of Injuries in Rugby Union

    Directory of Open Access Journals (Sweden)

    Jean-François Kaux

    2015-01-01

    Full Text Available Rugby is a sport that is growing in popularity. A contact sport par excellence, it causes a significant number of injuries. In Rugby Union, there are 30 to 91 injuries per 1000 match hours. This epidemiological review of injuries incurred by rugby players mentions the position and type of injuries, the causes, time during the match and season in which they occur and the players’ positions as well as the length of players’ absences following the injury.

  11. Treatment of Facial Injury

    Science.gov (United States)

    ... maxillofacial surgeon prescribes a nutritional liquid or pureed diet, which will help the healing process by keeping the patient in good health. After discharge from the hospital, the doctor gives the patient instructions on continued ...

  12. The spirit of professor Iacob Iacobovici in the development of education in dentistry and maxillofacial surgery.

    Science.gov (United States)

    Rotaru, Alexandru; Rotaru, Horatiu

    2015-01-01

    Founder of the Surgical Clinic in Cluj-Napoca and of Medical Education in Romanian, Rector of Dacia Superior University, Professor Iacob Iacobovici was one of the outstanding medical personalities in the first half of the twentieth century, in Romania. His scientific contributions have been recognized by the European great personalities of his time. A remarkable bright mind, with an overarching comprehension of things, Professor Iacob Iacobovici contributed, in an essential way, to the diversification of surgical education, stimulating the emergence of new specialties. This paper illustrates the contribution of Professor Iacob Iacobovici to the development of Education of Dentistry and Oral and Maxillofacial Surgery in Romania as well as his support for the Romanian Society of Dentistry.

  13. Current concepts of oral and maxillofacial rehabilitation and treatment in aviation.

    Science.gov (United States)

    Yuce, Esra; Koçer, Gulperi; Çini, Turan Atila

    2016-01-01

    Aerospace medicine is the medical discipline responsible for assessing and conserving the health, safety, and performance of individuals involved in air and space travel. With the upward trend in airline travel, flight-related oral conditions requiring treatment have become a source of concern for aircrew members. Awareness and treatment of any potential physiological problems for these aircrews have always been critical components of aviation safety. In a flight situation, oral and maxillofacial problems may in fact become life-threatening clinical conditions. The unusual nature of aerospace medicine requires practitioners to have unique expertise. Special attention to aerospace medicine will open the way for professionals to develop and apply their skills and capabilities. Both dentists and aviators should be aware of the issues involved in aviation dentistry. This article presents the principles of prevention, treatment guidelines, and dental-related flight restrictions.

  14. Perturbation of cobalt 60 radiation doses by metal objects implanted during oral and maxillofacial surgery

    International Nuclear Information System (INIS)

    Tatcher, M.; Kuten, A.; Helman, J.; Laufer, D.

    1984-01-01

    The influence on cobalt 60 dose distributions of typical metal parts used in oral and maxillofacial surgery was studied. Relative doses were determined by exposing x-ray films in a polystyrene phantom set-up containing samples of vitallium, titanium, and stainless steel. Optical densities were converted to doses with the aid of sensitometric curves. The results show that for normal incidence there is a 25% to 40% increase in dose at the entrance side of the metal and a 20% to 25% decrease in dose at the exit side. The enhancement effect falls off rapidly and becomes negligible at about 1 mm from the interface. The reduction effect decreases more gradually and is still evident at distances of a few centimeters. These dose perturbations should be taken into account in the planning of radiation therapy for patients in whom metal objects have been implanted

  15. Precision of three-dimensional CT-assisted model production in the maxillofacial area

    International Nuclear Information System (INIS)

    Solar, P.; Ulm, C.; Lill, W.; Imhof, H.; Watzek, G.; Blahout, R.; Gruber, H.; Matejka, M.

    1992-01-01

    Individual skull model fabrication was introduced into preoperative diagnostics in maxillofacial surgery in the mid-1980s. The aim of the present study was to collect information on the reproducibility of a skull model milled from hardened polyurethane foam. This model was based on the CT data of a real skull. Twenty comparative studies were carried out on both the model and the original skull, the model showing an average inaccuracy of 1.6 mm. The deviations ranged between 0.0 and 3.6 mm; the general trend favouring enlargements. The total deviation of the model as compared to the original skull was 1.8%. A convincing aspect of the model, which cannot be obtained by any other method, is its plasticity and the possibility of 3D orientation on a lifesize model. This new method is already used in preoperative planning of corrections of post-traumatic defects and craniofacial deformities as well as in tumour surgery. (orig.)

  16. The application of 3-dimensional CAT scan reconstruction for maxillofacial deformities

    International Nuclear Information System (INIS)

    Shimbashi, Takeshi; Tomonari, Hiroshi; Ishii, Masahiro; Sakurai, Nobuaki; Kodachi, Ken; Kubo, Eiichi; Tsuchida, Yoshitaka; Takagi, Hiroshi.

    1987-01-01

    It has been found very useful to recognize craniofacial deformities 3-dimensionally, and to observe 3-D Cat scan reconstructions that have been performed by others. Thus, starting in 1985, we have developed a 3-D CT system that combines conventional X-ray CAT scan hardware to a 3-Dimensional display software. In this paper we report on our 3-CT system, its basic algorithm, and its basic processes, i.e., the threshold process, the perspective process, the shading process and the display. The mixture shading which we have developed makes 3-D displays clearer and more natural. Also, we have applied our 3-D display to 39 cases of maxillofacial diformities. (author)

  17. The 1982 epidemic--roller skating injuries.

    Science.gov (United States)

    Bunker, T. D.

    1983-01-01

    A series of 100 roller skating injuries is presented. Roller skating injuries have been occurring at a higher rate than the previously reported skateboarding epidemic of 1977. The severity of injury has been lower, 32% fractures and dislocations occurring whilst roller skating, compared to 60% whilst skateboarding. In particular a striking reduction is seen in ankle fractures. Fifty questionnaires detailing method of injury were analysed. Images p205-a Fig. 1 Fig. 2 PMID:6652406

  18. Radiologic evaluation of facial injury; Avaliacao radiologica dos traumatismos faciais

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Ricardo Pires de; Volpato, Richard [Complexo Hospitalar Heliopolis, Sao Paulo, SP (Brazil). Servico de Diagnostico por Imagem]. E-mail: richard_volpato@uol.com.br; Nascimento, Lia Paula [Complexo Hospitalar Heliopolis, Sao Paulo, SP (Brazil)

    2003-03-01

    A detailed radiological investigation of the maxillofacial injuries is essential to achieve good treatment results. The images should identify every lesion and guide the treatment, thus improving esthetic and functional results. With the aim of simplifying the diagnostic task, the face may be seen as a five regions structure that may suffer a regional fracture or combined fractures involving the adjacent regions. These regions represent areas of focus for pre surgical planning and are as follows: nasal, orbital, zygomatic, maxillary, and mandibular. In order to understand the injury mechanisms and their consequences it is useful to know the supporting buttresses, which are divided in five sagittal planes, three horizontal planes and two coronal planes. We reviewed the cases of patients with facial trauma treated at Complexo Hospitalar Heliopolis, Sao Paulo, Brazil. A review of the relevant issues concerning radiological investigation of these injuries is presented. This study allowed standardization and ordering of the radiological investigation in patients with facial trauma. (author)

  19. Surgical correction of severe enophthalmos caused by bullet injury

    Directory of Open Access Journals (Sweden)

    S M Balaji

    2016-01-01

    Full Text Available Ballistic injuries of oral and maxillofacial region are usually fatal due to close propinquity with the vital structures. The severity of injury depends on the caliber of the weapon used and distance from which the patient is shot. The preliminary care of facial ballistic wounds strictly adheres to the basics of trauma resuscitation. Early and appropriate surgical management has proved to be influential on the final outcome and esthetic result. Treatment of facial gunshot wounds should be planned and carried out carefully to avoid esthetic complications. It takes even multiple-staged corrections to achieve the targeted functional and esthetic treatment plan. Prevention and control of infection is one of the most important goals to achieve the success of the treatment. Herewith, we present a case of facial gunshot injury with fractures in the orbital floor, medial wall maxillary sinus, and buttress of the zygomatic bone causing deficit, which was successfully managed by surgical reconstruction.

  20. Does Self-Citation Influence Quantitative Measures of Research Productivity Among Academic Oral and Maxillofacial Surgeons?

    Science.gov (United States)

    Susarla, Srinivas M; Swanson, Edward W; Lopez, Joseph; Peacock, Zachary S; Dodson, Thomas B

    2015-10-01

    Quantitative measures of research productivity depend on the citation frequency of a publication. Citation-based metrics, such as the h-index (total number of publications h that have at least h citations), can be susceptible to self-citation, resulting in an inflated measure of research productivity. The purpose of the present study was to estimate the effect of self-citation on the h-index among academic oral and maxillofacial surgeons (OMSs). The present study was a cross-sectional study of full-time academic OMSs in the United States. The predictor variable was the frequency of self-citation. The primary outcome of interest was the h-index. Other study variables included demographic factors and citation metrics. Descriptive, bivariate, and regression statistics were computed. The study sample consisted of 325 full-time academic OMSs. Most surgeons were men (88.3%); approximately 40% had medical degrees. The study subjects had an average of 23.5 ± 37.1 publications. The mean number of self-citations was 15 + 56. The sample's mean h-index was 6.6 ± 7.6 and was associated with self-citation (r = 0.71, P citations. After adjusting for PhD degree, total number of publications, and academic rank, an increasing self-citation rate influenced the h-index (r = 0.006, P citations were more likely to have their h-index influenced by self-citation. Self-citation among full-time academic OMSs does not substantially affect the h-index. Surgeons in the top quartile of self-citation rates are more likely to influence their h-index. Copyright © 2015 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  1. The role of unfinished root canal treatment in odontogenic maxillofacial infections requiring hospital care.

    Science.gov (United States)

    Grönholm, L; Lemberg, K K; Tjäderhane, L; Lauhio, A; Lindqvist, C; Rautemaa-Richardson, R

    2013-01-01

    The aim of this study was to evaluate clinical and radiological findings and the role of periapical infection and antecedent dental treatment of infected focus teeth in odontogenic maxillofacial abscesses requiring hospital care. In this retrospective cohort study, we evaluated medical records and panoramic radiographs during the hospital stay of patients (n = 60) admitted due to odontogenic maxillofacial infection originating from periapical periodontitis. Twenty-three (38 %) patients had received endodontic treatment and ten (17 %) other acute dental treatment. Twenty-seven (45 %) had not visited the dentist in the near past. Median age of the patients was 45 (range 20-88) years and 60 % were males. Unfinished root canal treatment (RCT) was the major risk factor for hospitalisation in 16 (27 %) of the 60 cases (p = .0065). Completed RCT was the source only in 7 (12 %) of the 60 cases. Two of these RCTs were adequate and five inadequate. The initiation of inadequate or incomplete primary RCT of acute periapical periodontitis appears to open a risk window for locally invasive spread of infection with local abscess formation and systemic symptoms. Thereafter, the quality of the completed RCT appears to have minor impact. However, a considerable proportion of the patients had not received any dental treatment confirming the importance of good dental health. Thus, thorough canal debridement during the first session is essential for minimising the risk for spread of infection in addition to incision and drainage of the abscess. If this cannot be achieved, tooth extraction should be considered. Incomplete or inadequate canal debridement and drainage of the abscess may increase the risk for spread of endodontic infection.

  2. Surgical Navigation: A Systematic Review of Indications, Treatments, and Outcomes in Oral and Maxillofacial Surgery.

    Science.gov (United States)

    Azarmehr, Iman; Stokbro, Kasper; Bell, R Bryan; Thygesen, Torben

    2017-09-01

    This systematic review investigates the most common indications, treatments, and outcomes of surgical navigation (SN) published from 2010 to 2015. The evolution of SN and its application in oral and maxillofacial surgery have rapidly developed over recent years, and therapeutic indications are discussed. A systematic search in relevant electronic databases, journals, and bibliographies of the included articles was carried out. Clinical studies with 5 or more patients published between 2010 and 2015 were included. Traumatology, orthognathic surgery, cancer and reconstruction surgery, skull-base surgery, and foreign body removal were the areas of interests. The search generated 13 articles dealing with traumatology; 5, 6, 2, and 0 studies were found that dealt with the topics of orthognathic surgery, cancer and reconstruction surgery, skull-base surgery, and foreign body removal, respectively. The average technical system accuracy and intraoperative precision reported were less than 1 mm and 1 to 2 mm, respectively. In general, SN is reported to be a useful tool for surgical planning, execution, evaluation, and research. The largest numbers of studies and patients were identified in the field of traumatology. Treatment of complex orbital fractures was considerably improved by the use of SN compared with traditionally treated control groups. SN seems to be a very promising addition to the surgical toolkit. Planning details of the surgical procedure in a 3-dimensional virtual environment and execution with real-time guidance can significantly improve precision. Among factors to be considered are the financial investments necessary and the learning curve. Copyright © 2017 American Association of Oral and Maxillofacial Surgeons. All rights reserved.

  3. Surface Coating of Gypsum-Based Molds for Maxillofacial Prosthetic Silicone Elastomeric Material: The Surface Topography.

    Science.gov (United States)

    Khalaf, Salah; Ariffin, Zaihan; Husein, Adam; Reza, Fazal

    2015-07-01

    This study aimed to compare the surface roughness of maxillofacial silicone elastomers fabricated in noncoated and coated gypsum materials. This study was also conducted to characterize the silicone elastomer specimens after surfaces were modified. A gypsum mold was coated with clear acrylic spray. The coated mold was then used to produce modified silicone experimental specimens (n = 35). The surface roughness of the modified silicone elastomers was compared with that of the control specimens, which were prepared by conventional flasking methods (n = 35). An atomic force microscope (AFM) was used for surface roughness measurement of silicone elastomer (unmodified and modified), and a scanning electron microscope (SEM) was used to evaluate the topographic conditions of coated and noncoated gypsum and silicone elastomer specimens (unmodified and modified) groups. After the gypsum molds were characterized, the fabricated silicone elastomers molded on noncoated and coated gypsum materials were evaluated further. Energy-dispersive X-ray spectroscopy (EDX) analysis of gypsum materials (noncoated and coated) and silicone elastomer specimens (unmodified and modified) was performed to evaluate the elemental changes after coating was conducted. Independent t test was used to analyze the differences in the surface roughness of unmodified and modified silicone at a significance level of p SEM analysis results showed evident differences in surface smoothness. EDX data further revealed the presence of the desired chemical components on the surface layer of unmodified and modified silicone elastomers. Silicone elastomers with lower surface roughness of maxillofacial prostheses can be obtained simply by coating a gypsum mold. © 2014 by the American College of Prosthodontists.

  4. A proposal of a three-dimensional CT measurement method of maxillofacial structure

    International Nuclear Information System (INIS)

    Tanaka, Ray; Hayashi, Takafumi

    2007-01-01

    Three-dimensional CT measurement is put in practice in order to grasp the pathological condition on diseases such as the temporomandibular joint disorder, maxillofacial anomaly, jaw deformity, or fracture which cause the morphologic changes of the maxillofacial bones. On the 3D measurement, the unique system that is obtained by volume rendering 3D images with a simultaneous reference of axial images combined with coronal and sagittal multi-planar reconstruction (MPR) images (we call this MPR referential method), is employed in order to define the measurement points. Our purpose in this report is to indicate the usefulness of this unique method by comparing with the common way to define the measurement points on only 3D reconstruction images without consulting of MPR images. Clinical CT data obtained from a male patient with skeletal malocclusion was used. Contiguous axial images were reconstructed at 4 times magnification, with a reconstruction interval of 0.5 mm, focused on the temporomandibular joint region in his left side. After these images were converted to Digital Imaging and Communications in Medicine (DICOM) format and sent to personal computer (PC), 3D reconstruction image was created using free 3D DICOM medical image viewer. The coordinates of 3 measurement points (the lateral and medial pole of the mandibular condyle, and the left foramen ovale) were defined with MPR images (MPR coordinates) as reference coordinates, and then the coordinates that were defined on only 3D reconstruction image without consulting to MPR images (3D coordinates) were compared to those of MPR coordinates. Three examiners were engaged independently 10 times for every measurement point. In our result, there was no correspondence between 3D coordinates and MPR coordinates, and contribution of 3D coordinates showed a variety in every measurement point and in every observer. We deemed that ''MPR referential method'' is useful to assess the location of the target point of anatomical

  5. Three-dimensional helical (spiral) CT angiography. Visualization of vessels in the maxillofacial regions

    International Nuclear Information System (INIS)

    Hanawa, Shigeo; Sakamoto, Hidetomo; Mori, Shin-ichiro; Kagawa, Toyohiro; Seze, Ryosuke; Ishioka, Hisakazu; Tashiro, Himiko; Ogawa, Kazuhisa; Wada, Tadako

    1998-01-01

    Authors performed the contrast helical CT for tumors on the maxillofacial regions, and reconstituted these data into the three-dimensional helical (spiral) CT angiography (CTA). Furthermore the conditions of photographing and the clinical significance of CTA were discussed. The subjects were 24 cases (including 13 of malignant tumors, 4 of benign tumors, 4 of inflammation and 3 of malformations), to which the contrast helical CT was performed transvenously. The photographing condition was set in principal to 140 kV of the tube voltage, 160 (200) mA of the tube current, 3 mm of the X-ray beam width, 3 mm/sec (pitch=1) of the turn-table moving speed. The relationship between the beam width and the pitch was determined by the phantom experiments. The scanning was carried out maximally for continuous 60 sec as the scanning time of a turn/sec. Of all cases, CTA visualized three-dimensionally vessels, but it was hard in the total carotid arteries and the internal-external carotid arteries. Authors analyzed the axial and the multiplanar reconstitution (MPR) images as the two-dimensional display, and the surface rendering (SR), the volume rendering and the maximum intensity projections (MIP) as the three-dimensional display. The axial and MPR image of the facial arteries and the lingual arteries as the branched vessels from the external carotid arteries were recognized easily. By SR, it was easily to understand the anatomical relationship among vessels, gnathic bone and cervical vertebrae, and by MIP sufficiently observe the concentration dependent calcification of the vessel walls. Three-dimensional CTA is very useful to get the three-dimensional visual information about the anatomical structures of the maxillofacial regions which is necessary for oral surgeons to plan the pre-operational strategies. (K.H.)

  6. Cluster bomb ocular injuries.

    Science.gov (United States)

    Mansour, Ahmad M; Hamade, Haya; Ghaddar, Ayman; Mokadem, Ahmad Samih; El Hajj Ali, Mohamad; Awwad, Shady

    2012-01-01

    To present the visual outcomes and ocular sequelae of victims of cluster bombs. This retrospective, multicenter case series of ocular injury due to cluster bombs was conducted for 3 years after the war in South Lebanon (July 2006). Data were gathered from the reports to the Information Management System for Mine Action. There were 308 victims of clusters bombs; 36 individuals were killed, of which 2 received ocular lacerations and; 272 individuals were injured with 18 receiving ocular injury. These 18 surviving individuals were assessed by the authors. Ocular injury occurred in 6.5% (20/308) of cluster bomb victims. Trauma to multiple organs occurred in 12 of 18 cases (67%) with ocular injury. Ocular findings included corneal or scleral lacerations (16 eyes), corneal foreign bodies (9 eyes), corneal decompensation (2 eyes), ruptured cataract (6 eyes), and intravitreal foreign bodies (10 eyes). The corneas of one patient had extreme attenuation of the endothelium. Ocular injury occurred in 6.5% of cluster bomb victims and 67% of the patients with ocular injury sustained trauma to multiple organs. Visual morbidity in civilians is an additional reason for a global ban on the use of cluster bombs.

  7. Treatment Protocol for High Velocity/High Energy Gunshot Injuries to the Face

    Science.gov (United States)

    Peled, Micha; Leiser, Yoav; Emodi, Omri; Krausz, Amir

    2011-01-01

    Major causes of facial combat injuries include blasts, high-velocity/high-energy missiles, and low-velocity missiles. High-velocity bullets fired from assault rifles encompass special ballistic properties, creating a transient cavitation space with a small entrance wound and a much larger exit wound. There is no dispute regarding the fact that primary emergency treatment of ballistic injuries to the face commences in accordance with the current advanced trauma life support (ATLS) recommendations; the main areas in which disputes do exist concern the question of the timing, sequence, and modes of surgical treatment. The aim of the present study is to present the treatment outcome of high-velocity/high-energy gunshot injuries to the face, using a protocol based on the experience of a single level I trauma center. A group of 23 injured combat soldiers who sustained bullet and shrapnel injuries to the maxillofacial region during a 3-week regional military conflict were evaluated in this study. Nine patients met the inclusion criteria (high-velocity/high-energy injuries) and were included in the study. According to our protocol, upon arrival patients underwent endotracheal intubation and were hemodynamically stabilized in the shock-trauma unit and underwent total-body computed tomography with 3-D reconstruction of the head and neck and computed tomography angiography. All patients underwent maxillofacial surgery upon the day of arrival according to the protocol we present. In view of our treatment outcomes, results, and low complication rates, we conclude that strict adherence to a well-founded and structured treatment protocol based on clinical experience is mandatory in providing efficient, appropriate, and successful treatment to a relatively large group of patients who sustain various degrees of maxillofacial injuries during a short period of time. PMID:23449809

  8. Injuries in mountain biking.

    Science.gov (United States)

    Gaulrapp, H; Weber, A; Rosemeyer, B

    2001-01-01

    Despite still growing attraction mountain biking as a matter of sports traumatology still lacks relevant data based on large cross-sectional surveys. To obtain an overview of risk factors, types, and main body sites of injuries occurring in mountain biking we assessed the results of a questionnaire answered by 3873 athletes. A total of 8133 single lesions were reported by 3474 athletes, 36% of whom regularly participated in competitions. The incidence of injuries in mountain biking is comparable to that in other outdoor sports, the majority of injuries being minor. Mountain biking athletes were found to have an overall injury risk rate of 0.6% per year and 1 injury per 1000 h of biking. The main risk factors included slippery road surface, cyclist's poor judgement of the situation, and excessive speed, representing personal factors that could be altered by preventive measures. Of all injuries 14% were due to collision with some part of the bike, especially the pedals and the handlebar. While 75% of the injuries were minor, such as skin wounds and simple contusions, 10% were so severe that hospitalization was required. A breakdown of the injuries according to body site and frequency of occurrence is presented.

  9. Análise epidemiológica de lesões no futebol de salão durante o XV Campeonato Brasileiro de Seleções Sub 20 Análisis epidemiológico de las lesiones en el fútbol de salón durante el XV Campeonato Brasileño de Selecciones Sub 20 Epidemiologic analysis of injuries occurred during the 15th Brazilian Indoor Soccer (Futsal Sub20 Team Selection Championship

    Directory of Open Access Journals (Sweden)

    Rodrigo Nogueira Ribeiro

    2006-02-01

    para investigar la ocurrencia de lesiones durante las salidas. La tasa de respuesta fue de 100%. RESULTADOS: Un total de 32 lesiones fueron registradas durante los 23 partidos con una incidencia de 1.39 lesion para salida o 208.6 lesiones para 1.000 horas/juego. Aproximadamente 1 a 3 lesiones por partido provocaron la salida de jugadores en partidos o entrenamientos. Las lesiones por contacto eran predominantes en 65.62% (21 de las 32 lesiones, y la mayoría de esas lesiones no producía la salida de los jugadores. CONCLUSIONES: El estudio presente observó que la incidencia de las lesiones durante el XV Campeonato Brasileño de Fútbol de salón Sub 20 fue similar a la incidencia observada en los torneos de Fútbol de salón pero superior a los hallazgos en los torneos del fútbol, caracterizando la especificidad del deporte. Sin embargo, las circunstancias y características son similares entre ellos debido a la similitud de demanda del deporte.INTRODUCTION: Several authors have investigated the incidence of injuries occurred in the outdoor soccer game. However, there are only few works analyzing injuries occurred in the indoor soccer game (futsal. The purpose of this study was to analyze the incidence, circumstances, and characteristics of injuries recorded in the indoor soccer during the 15th Brazilian Sub20 Futsal Championship. METHODS: Physiotherapists and doctors of every team selection participating in the 15th Brazilian Sub20 Futsal Championship answered a questionnaire with the purpose to investigate the occurrence of injuries during the games. The answering rate was 100%. RESULTS: 32 total injuries were recorded along 23 games, with a 1.39 injury incidence per game, or 208.6 injuries per 1,000/game. Approximately 1 to 3 injuries per game resulted in removal of players from gaming or training. Contact injuries were predominant in 65.62% (21 out of 32 injuries, and most of these injuries did not result in removal of the players. CONCLUSIONS: The present study

  10. Estudio retrospectivo de causas de trauma maxilofacial en Pasto, Colombia de 2001 a 2006 A retrospective study of maxillofacial trauma causes in Pasto, Colombia from 2001 to 2006

    Directory of Open Access Journals (Sweden)

    Ana Cristina Mafla

    2009-08-01

    Full Text Available Introducción: Las lesiones maxilofaciales son una condición frecuente en diferentes países, sin embargo, están asociadas a diversas causas. Metodología: Un estudio descriptivo fue realizado de Enero de 2001 a Diciembre de 2006 en tres hospitales y una institución de Pasto, Nariño, Colombia. 701 pacientes consecutivos del "Hospital San Pedro", "Hospital Universitario Departamental de Nariño", "Hospital Infantil Los Ángeles", y el Instituto de Medicina Legal y Ciencias Forenses Seccional Nariño - Putumayo fueron evaluados. Variables como año, género, distribución anatómica de la fractura, se incluyeron. Análisis descriptivos fueron usados para determinar porcentajes e intervalos de confianza. Resultados: Las causas más comunes fueron violencia, con 350 (49,9%, accidentes en motos con 104 (14,8%, en autos con 93 (13,3 %, y caídas con 66 (9,4%. Existió un incremento substancial de violencia en los años 2003 a 2004. Los niños de 0 a 6 años presentaron más caídas, mientras los jóvenes de 15 a 24 años se asociaron con violencia, al igual que accidentes en motos y automóviles. La violencia fue relacionada con fracturas de huesos propios de la nariz, caídas con lesiones naso-orbito-etmoidales, y accidentes en motos y automóviles con politraumatismo y fracturas panfaciales. Conclusiones: Debido a que la violencia, accidentes en motos y automóviles son las principales causas de lesiones maxilofaciales en la juventud, las políticas públicas deben ser dirigidas a ésta Salud UIS 2009; 41: 142-148Introduction: Maxillofacial injuries are a frequent condition in different countries; however, they are associated to different causes. Methodology: A descriptive study was performed from January 2001 to December 2006 at three hospitals and one institution from Pasto, Nariño, Colombia. 701 consecutive patients at "Hospital Los Angeles", "Hospital San Pedro", "Hospital Universitario Departamental de Nariño" and "Instituto de Medicina

  11. Cost analysis of facial injury treatment in two university hospitals in Malaysia: a prospective study

    Directory of Open Access Journals (Sweden)

    Saperi BS

    2017-02-01

    Full Text Available Bin Sulong Saperi,1 Roszalina Ramli,2 Zafar Ahmed,1 Amrizal Muhd Nur,1 Mohd Ismail Ibrahim,3 Muhd Fazlynizam Rashdi,2 Rifqah Nordin,2 Normastura Abd Rahman,4 Azizah Yusoff,4 Abd Jabar Nazimi,2 Roselinda Abdul Rahman,4 Noorhayati Abdul Razak,4 Norlen Mohamed 5 1International Centre for Casemix and Clinical Coding, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, 2Department of Oral and Maxillofacial Surgery, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, 3Department of Community Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, 4School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, 5Malaysian Institute of Road Safety Research, Kuala Lumpur, Malaysia Objective: Facial injury (FI may occur in isolation or in association with injuries to other parts of the body (facial and other injury [FOI]. The objective of this study was to determine the direct treatment costs incurred during the management of facial trauma. Materials and methods: A prospective cohort study on treatment cost for FIs and FOIs due to road-traffic crashes in two university hospitals in Malaysia was conducted from July 2010 to June 2011. The patients were recruited from emergency departments and reviewed after 6 months from the date of initial treatment. Direct cost analysis, comparison of cost and length of hospital stay, and Injury Severity Score (ISS were performed. Results: A total of 190 patients were enrolled in the study, of whom 83 (43.7% had FI only, and 107 (56.3% had FOI. The mean ISS was 5.4. The mean length of stay and costs for patients with FI only were 5.8 days with a total cost of US$1,261.96, whereas patients with FOI were admitted for 7.8 days with a total cost of US$1,716.47. Costs doubled if the treatment was performed under general anesthesia compared to local anesthesia. Conclusion: Treatment of FI and FOI imposes a financial burden on the health care system in Malaysia. Keywords: facial

  12. Total retinal detachment occurring after minor head trauma.

    Science.gov (United States)

    Mircea, Pienaru; Ramona, Serban; Mircea, Filip; Andrei, Filip

    2015-01-01

    The objective of this article is to present the case of a patient with a severe decrease of visual acuity that occurred after an apparently minor head injury. Following the investigations, the patient was diagnosed with rhegmatogenous retinal detachment that was triggered by a fall from the same level and which occurred on a background of lattice degeneration. In this case, a minor trauma caused a severe complication because the patient had a contributing factor for the complication. The patient was operated and the end result was satisfactory.

  13. Fast pitch softball injuries.

    Science.gov (United States)

    Meyers, M C; Brown, B R; Bloom, J A

    2001-01-01

    The popularity of fast pitch softball in the US and throughout the world is well documented. Along with this popularity, there has been a concomitant increase in the number of injuries. Nearly 52% of cases qualify as major disabling injuries requiring 3 weeks or more of treatment and 2% require surgery. Interestingly, 75% of injuries occur during away games and approximately 31% of traumas occur during nonpositional and conditioning drills. Injuries range from contusions and tendinitis to ligamentous disorders and fractures. Although head and neck traumas account for 4 to 12% of cases, upper extremity traumas account for 23 to 47% of all injuries and up to 19% of cases involve the knee. Approximately 34 to 42% of injuries occur when the athlete collides with another individual or object. Other factors involved include the quality of playing surface, athlete's age and experience level, and the excessive physical demands associated with the sport. Nearly 24% of injuries involve base running and are due to poor judgement, sliding technique, current stationary base design, unorthodox joint and extremity position during ground impact and catching of cleats. The increasing prevalence of overtraining syndrome among athletes has been attributed to an unclear definition of an optimal training zone, poor communication between player and coach, and the limited ability of bone and connective tissue to quickly respond to match the demands of the sport. This has led routinely to arm, shoulder and lumbar instability, chronic nonsteroidal anti-inflammatory drug (NSAID) use and time loss injuries in 45% of pitching staff during a single season. Specific attention to a safer playing environment, coaching and player education, and sport-specific training and conditioning would reduce the risk, rate and severity of fast pitch traumas. Padding of walls, backstops, rails and dugout areas, as well as minimising use of indoor facilities, is suggested to decrease the number of collision

  14. Brain injuries from blast.

    Science.gov (United States)

    Bass, Cameron R; Panzer, Matthew B; Rafaels, Karen A; Wood, Garrett; Shridharani, Jay; Capehart, Bruce

    2012-01-01

    Traumatic brain injury (TBI) from blast produces a number of conundrums. This review focuses on five fundamental questions including: (1) What are the physical correlates for blast TBI in humans? (2) Why is there limited evidence of traditional pulmonary injury from blast in current military field epidemiology? (3) What are the primary blast brain injury mechanisms in humans? (4) If TBI can present with clinical symptoms similar to those of Post-Traumatic Stress Disorder (PTSD), how do we clinically differentiate blast TBI from PTSD and other psychiatric conditions? (5) How do we scale experimental animal models to human response? The preponderance of the evidence from a combination of clinical practice and experimental models suggests that blast TBI from direct blast exposure occurs on the modern battlefield. Progress has been made in establishing injury risk functions in terms of blast overpressure time histories, and there is strong experimental evidence in animal models that mild brain injuries occur at blast intensities that are similar to the pulmonary injury threshold. Enhanced thoracic protection from ballistic protective body armor likely plays a role in the occurrence of blast TBI by preventing lung injuries at blast intensities that could cause TBI. Principal areas of uncertainty include the need for a more comprehensive injury assessment for mild blast injuries in humans, an improved understanding of blast TBI pathophysiology of blast TBI in animal models and humans, the relationship between clinical manifestations of PTSD and mild TBI from blunt or blast trauma including possible synergistic effects, and scaling between animals models and human exposure to blasts in wartime and terrorist attacks. Experimental methodologies, including location of the animal model relative to the shock or blast source, should be carefully designed to provide a realistic blast experiment with conditions comparable to blasts on humans. If traditional blast scaling is

  15. Amelobastic odontoma occurred in the mandible

    Energy Technology Data Exchange (ETDEWEB)

    Ha, SSang Yong; Song, Nam Kyu; Koh, Kwang Joon [Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Chonbuk National University, Chonju (Korea, Republic of)

    1996-08-15

    Amelobastic odontoma is a mixed odontogenic tumor, which is characterized as being extremely rare, displaying aggressive clinical behavior, resembling a mixed radiopaque and radiolucent radiographic appearance and containing both amel oblastoma and a composite odontoma. Seven-year-old boy complaining of delayed eruption of the left lower permanent 1st molar came to the department of Oral and Maxillofacial radiology at Chonbuk National University Hospital. The list of our radiographic differential diagnosis included the dental follicle, compound odontoma, complex odontoma and cystic odontoma. The microscopic analysis showed the lesion with the characteristics of an ameloblastic odontoma. the obtained results were as follows : 1. The area was asymptomatic, but the delayed eruption of the left lower permanent 1st molar was observed. 2. Radiographically, well-defined widened pericoronal radiolucency containing several tooth-like radiopacities involving the impacted left lower permanent 1st molar and well-defined round radiolucency containing irregular radiopaque mass were observed. 3. Histopathologically, several tooth-lile structures, odontoma components with the area of typical enamel, dentin and pulp, and ameloblastic components with typical follicular amelobastoma were observed.

  16. Mountain biking injuries: an update.

    Science.gov (United States)

    Kronisch, Robert L; Pfeiffer, Ronald P

    2002-01-01

    This article reviews the available literature regarding injuries in off-road bicyclists. Recent progress in injury research has allowed the description of several patterns of injury in this sport. Mountain biking remains popular, particularly among young males, although sales and participation figures have decreased in the last several years. Competition in downhill racing has increased, while cross-country racing has decreased somewhat in popularity. Recreational riders comprise the largest segment of participants, but little is known about the demographics and injury epidemiology of noncompetitive mountain cyclists. Most mountain bikers participating in surveys reported a history of previous injuries, but prospective studies conducted at mountain bike races have found injury rates of bike racing the risk of injury may be higher for women than men. Minor injuries such as abrasions and contusions occur frequently, but are usually of little consequence. Fractures usually involve the torso or upper extremities, and shoulder injuries are common. Head and face injuries are not always prevented by current helmet designs. Fatal injuries are rare but have been reported. Improvements in safety equipment, rider training and racecourse design are suggested injury prevention measures. The authors encourage continued research in this sport.

  17. A systematic review of functional outcome and quality of life following reconstruction of maxillofacial defects using vascularized free fibula flaps and dental rehabilitation reveals poor data quality

    NARCIS (Netherlands)

    Wijbenga, Johan G.; Schepers, Rutger H.; Werker, Paul M. N.; Witjes, Max J. H.; Dijkstra, Pieter U.

    Background: Reconstruction and oral rehabilitation of segmental maxillofacial defects resulting from ablative surgery is commonly achieved by osteocutaneous vascularized free fibula (VFFF) transplantation combined with implant-supported dental prostheses. We systematically reviewed the literature

  18. Skateboarding injuries: An updated review.

    Science.gov (United States)

    Shuman, Kristin M; Meyers, Michael C

    2015-07-01

    This in-depth literature review shows that skateboarding has experienced intermittent periods of popularity, with an estimated 6-15 million skateboarders in the US currently involved at all levels of recreational play and competition. Head trauma accounts for ∼ 3.5-13.1% of all skateboarding injuries. Injury occurs most often to the upper extremity (55-63%), whereas thoracoabdominal and spine injuries account for 1.5-2.9% of all trauma and lower extremity injuries occur 17-26% of the time. Few fatal injuries (1.1%) have been reported, oftentimes resulting from traumatic head injuries incurred from collisions with motor vehicles. Although skateparks may be perceived as a safer alternative to street skateboarding, injuries still occur when the skateboarder collides with an object or falls from the board. Factors leading to trauma include fatigue and overuse, age and skill level, inadequate medical care, environmental conditions, equipment concerns, lack of fitness and training, and the detrimental behavior of the competitor. Although not all skateboarding injuries are avoidable, numerous opportunities exist to instill safety involving education, instruction, and supervision and the proper use of protective gear to reduce predisposition to trauma. Future research recommendations include a more standardized data collection system, as well as an increased focus on kinetic analysis of the sport. Legislation involving helmet laws and the increased investment in a safer environment for the skateboarder may also assist in reducing injury in this sport.

  19. [Maxillofacial and dental abnormalities in some multiple abnormality syndromes. "Cri du chat" syndrome, Wilms' tumor-aniridia syndrome; Sotos syndrome; Goldenhar syndrome].

    Science.gov (United States)

    Berio, A; Trucchi, R; Meliota, M

    1992-05-01

    The paper describes the maxillo-facial and dental anomalies observed in some chromosome and non-chromosome poly-malformative syndromes ("Cri du chat" syndrome; Wilms' tumour; Sotos' syndrome; Goldenhar's syndrome). The Authors emphasise the possibility of diagnosing these multiple deformity syndromes from maxillo-facial alterations in early infancy; anomalous tooth position and structure cal also be successfully treated immediately after the first appearance of teeth. This is a particularly promising field of pediatrics and preventive pediatric medicine.

  20. Sports injuries in Plus League volleyball players.

    Science.gov (United States)

    Cieśla, E; Dutkiewicz, R; Mgłosiek, M; Nowak-Starz, G; Markowska, M; Jasiński, P; Dudek, J

    2015-06-01

    Although physical activity brings a range of lifelong health benefits, it may also lead to injuries that pose a significant threat to health. It is particularly noticeable in people involved in professional sports where sport-related injuries commonly occur and are associated with intense exercise which aims to improve physical fitness. The article attempts to determine incidence of sports injuries reported by Plus League volleyball players, as well as to identify their most common types and causes. The research project involved 90 Plus League volleyball players aged 18-37 with the average age of 25.11 (SD±5.378). A method of diagnostic survey was applied to collect empirical data by means of questionnaire developed by the authors (researchers). The results were statistically analysed and verified with the analysis of variance (ANOVA) and χ2 test at the significance level (or critical P-value) of P≤0.05. Over 87% of the respondents suffered from at least one sport-related injury. In total, 362 injuries occurred, on average 4.02 injuries per one volleyball player. The most common sports injuries involved ankle or talocrural joint (46 injuries), knee and lower leg muscles (30), interphalangeal articulations of fingers (30) as well as shoulder joint. More than half of the injuries (57%) occurred twice or three times. Volleyball players commonly sustain injuries through contact with an opposing player in competition. Sport-specific injuries may also occur due to exhaustion, lack of rest and undertreated injuries. The most common volleyball-related injuries are primarily talocrural joint, hand and shoulder injuries. Common types of injuries that can affect volleyball players include muscles, joints and ligaments injuries, sprains and strains as well as bruises. Most of these injuries are caused by exhaustion, contact with an opposing player during competition and fatigue. The incidence of sport-related injuries seems to be influenced by such factors as somatic

  1. Eye Injuries

    Science.gov (United States)

    ... that you could lose your vision. Most eye injuries are preventable. If you play sports or work in certain jobs, you may need protection. The most common type of injury happens when something irritates the ...

  2. Ocular Injuries

    African Journals Online (AJOL)

    GB

    2015-04-02

    Apr 2, 2015 ... KEYWORDS: Bangers, eye injuries, holidays, Nigeria ... antibiotic and cycloplegic eye drops, antibiotic ointment at night and .... Adeoti C. O, Bello T. O., Ashaye A. O. Blinding ... Can fireworks-related injuries to children during ...

  3. ACL Injuries

    Science.gov (United States)

    ... while doing things like skiing, playing soccer or football, and jumping on a trampoline. When you injure ... severity of the injury, age, physical condition, medical history, and other injuries or illnesses. People who are ...

  4. Knee Injuries

    Science.gov (United States)

    ... Staying Safe Videos for Educators Search English Español Knee Injuries KidsHealth / For Teens / Knee Injuries What's in ... can do to protect them. What's in a Knee? The knee is a joint , actually the largest ...

  5. Injury and injury rates in Muay Thai kick boxing

    OpenAIRE

    Gartland, S; Malik, M; Lovell, M

    2001-01-01

    Objective—To determine the type and number of injuries that occur during the training and practice of Muay Thai kick boxing and to compare the data obtained with those from previous studies of karate and taekwondo.

  6. Injuries in competitive boxing. A prospective study.

    Science.gov (United States)

    Siewe, J; Rudat, J; Zarghooni, K; Sobottke, R; Eysel, P; Herren, C; Knöll, P; Illgner, U; Michael, J

    2015-03-01

    Boxing remains a subject of controversy and is often classified as dangerous. But the discussion is based mostly on retrospective studies. This survey was conducted as a prospective study. From October 2012 to September 2013, 44 competitive boxers were asked to report their injuries once a month. The questionnaire collected general information (training, competition) and recorded the number of bouts fought, injuries and resulting lost days. A total of 192 injuries were recorded, 133 of which resulted in interruption of training or competition. Each boxer sustained 3 injuries per year on average. The injury rate was 12.8 injuries per 1 000 h of training. Boxers fighting more than 3 bouts per year sustain more injuries (p=0.0075). The injury rate does is not a function of age (age≤19 vs. > 19a, p=0.53). Injuries to the head and the upper limbs occur most frequently. The most common injuries are soft tissue lacerations and contusions. Head injuries with neurological symptoms rarely occur (4.2%). Boxing has a high injury rate that is comparable with other contact sports, but most injuries are minor. Injury frequency is not a function of whether the boxer competes in the junior or adult category. Athletes fighting many bouts per year have a greater risk of injury. © Georg Thieme Verlag KG Stuttgart · New York.

  7. Review of orthognathic surgery and related papers published in the British Journal of Oral and Maxillofacial Surgery 2011-2012.

    Science.gov (United States)

    Goodson, Alexander M C; Payne, Karl F B; Tahim, Arpan; Colbert, Serryth; Brennan, Peter A

    2015-04-01

    This review summarises all orthognathic and related papers published between January 2011 and December 2012 in the British Journal of Oral and Maxillofacial Surgery (BJOMS). A total of 36 articles were published, a high proportion of which (78%) were full-length papers. The remainder consisted of short communications and technical notes. The topics included operative planning and postoperative outcomes, and there was a strong focus on distraction osteogenesis. There were fewer orthognathic articles published in BJOMS than articles on other subspecialties such as trauma or head and neck oncology. Only 8 (29%) of the full-length articles were prospective studies or randomised trials, which highlights a need for well-designed clinical studies in orthognathic research. Copyright © 2013 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  8. Tissue differentiation by diffuse reflectance spectroscopy for automated oral and maxillofacial laser surgery: ex vivo pilot study

    Science.gov (United States)

    Zam, Azhar; Stelzle, Florian; Tangermann-Gerk, Katja; Adler, Werner; Nkenke, Emeka; Schmidt, Michael; Douplik, Alexandre

    2010-02-01

    Remote laser surgery lacks of haptic feedback during the laser ablation of tissue. Hence, there is a risk of iatrogenic damage or destruction of anatomical structures like nerves or salivary glands. Diffuse reflectance spectroscopy provides a straightforward and simple approach for optical tissue differentiation. We measured diffuse reflectance from seven various tissue types ex vivo. We applied Linear Discriminant Analysis (LDA) to differentiate the seven tissue types and computed the area under the ROC curve (AUC). Special emphasis was taken on the identification of nerves and salivary glands as the most crucial tissue for maxillofacial surgery. The results show a promise for differentiating tissues as guidance for oral and maxillofacial laser surgery by means of diffuse reflectance.

  9. A possible mechanism of maxillofacial abscess formation: involvement of Porphyromonas endodontalis lipopolysaccharide via the expression of inflammatory cytokines.

    Science.gov (United States)

    Murakami, Y; Hanazawa, S; Tanaka, S; Iwahashi, H; Yamamoto, Y; Fujisawa, S

    2001-12-01

    In a previous study, we developed a specific monoclonal antibody against Porphyromonas endodontalis lipopolysaccharide, and demonstrated that this lipopolysaccharide was detected in bacterially infected root canal fluid. We suggest here that P. endodontalis lipopolysaccharide in the infectious materials plays a stimulatory role in maxillofacial abscess formation via the expression of inflammatory cytokines. Our epidemiological study showed that this lipopolysaccharide was detected in significant levels the infectious material of patients with periapical periodontitis and odontogenic abscesses. Interestingly, infectious material-induced expression of tumor necrosis factor-alpha, interleukin-1beta, or neutrophil chemoattractant KC genes in mouse macrophages, was significantly neutralized by monoclonal antibody against the lipopolysaccharide. In addition, we also detected a significant amount of tumor necrosis factor-alpha in the infectious material. These results suggest that P. endodontalis lipopolysaccharide plays an important role in the pathogenic mechanism of maxillofacial abscess formation via the expression of inflammatory cytokines.

  10. Athletic Hip Injuries.

    Science.gov (United States)

    Lynch, T Sean; Bedi, Asheesh; Larson, Christopher M

    2017-04-01

    Historically, athletic hip injuries have garnered little attention; however, these injuries account for approximately 6% of all sports injuries and their prevalence is increasing. At times, the diagnosis and management of hip injuries can be challenging and elusive for the team physician. Hip injuries are seen in high-level athletes who participate in cutting and pivoting sports that require rapid acceleration and deceleration. Described previously as the "sports hip triad," these injuries consist of adductor strains, osteitis pubis, athletic pubalgia, or core muscle injury, often with underlying range-of-motion limitations secondary to femoroacetabular impingement. These disorders can happen in isolation but frequently occur in combination. To add to the diagnostic challenge, numerous intra-articular disorders and extra-articular soft-tissue restraints about the hip can serve as pain generators, in addition to referred pain from the lumbar spine, bowel, bladder, and reproductive organs. Athletic hip conditions can be debilitating and often require a timely diagnosis to provide appropriate intervention.

  11. Injuries in classical ballet

    Directory of Open Access Journals (Sweden)

    Adriana Coutinho de Azevedo Guimarães

    2008-06-01

    Full Text Available This study aimed to elucidate what injuries are most likely to occur due to classical ballet practice. The research used national and international bibliography. The bibliography analysis indicated that technical and esthetical demands lead to a practice of non-anatomical movements, causing the ballet dancer to suffer from a number of associated lesions. Most of the injuries are caused by technical mistakes and wrong training. Troubles in children are usually due to trying to force external rotation at hip level and to undue use of point ballet slippers. The commonest lesions are in feet and ankles, followed by knees and hips. The rarest ones are in the upper limbs. These injuries are caused by exercise excess, by repetitions always in the same side and by wrong and early use of point slippers. The study reached the conclusion that incorrect application of classical ballet technique predisposes the dancers to characteristic injuries.

  12. The application of 3-dimensional printing for preoperative planning in oral and maxillofacial surgery in dogs and cats

    OpenAIRE

    Winer, JN; Verstraete, FJM; Cissell, DD; Lucero, S; Athanasiou, KA; Arzi, B

    2017-01-01

    © 2017 The American College of Veterinary Surgeons Objective: To describe the application of 3-dimensional (3D) printing in advanced oral and maxillofacial surgery (OMFS) and to discuss the benefits of this modality in surgical planning, student and resident training, and client education. Study design: Retrospective case series. Animals: Client-owned dogs (n = 28) and cats (n = 4) with 3D printing models of the skulls. Methods: The medical records of 32 cases with 3D printing prior to major ...

  13. [Features of facioscapulohumeral muscular dystrophy in oral and maxillofacial region and MRI analysis of facial muscles].

    Science.gov (United States)

    Liu, Y H; Ma, Y X; Hu, J; Gao, G D; Wu, Y K; Zhang, Z Y

    2016-12-09

    Objective: To investigate the manifestation of facioscapulohumeral muscular dystrophy (FSHD) in oral and maxillofacial region. Methods: A total of 12 patients diagnosed as FSHD and 20 healthy volunteers were included in the study. Their medical history was collected from these patients. The decayed missing filled teeth (DMFT), calculus index-simplified (CI-S), occlusal relationship, maximal opening of mouth and maximum bite force were recorded. The impressions were taken to measure the maximal hight of palate and the width of palate. The lateral cephalometric radiographs were also taken to measure the mandibular plane-frankfurt horizontal plane angle (MP-FH). They finally received oral and maxillofacial region MRI examination to observe the masseter muscle, medial pterygoid muscle and lateral pterygoid muscle. The data were analyzed by t -test or Wilcoxon signed ranks test. Results: There was no significant gender difference in FSHD group. The average age of treatment was (27.5 ± 8.1) years and the average age of onset was (15.7±7.5) years. Nine patients liked to eat soft foods, 4 patients had difficulties of closing eyes, 8 patients had difficulties of cheek-bulging, 10 patients showed pouty lips and 9 patients had mesio-malocclusion. DMFT (4.0±2.3), CI-S (5.8±2.1), male maximal hight of palate (20.5±2.1) mm , female maximal hight of palate (17.9±1.6) mm, MP-FH (31.8°±2.2°) of FSHD group were greater than those of the control group. Male width of palate (34.8±1.4) mm, female width of palate (33.7±1.5) mm, male maximum bite force (451.7 ± 39.0) N, female maximum bite force (326.7 ± 21.6) N, maximal opening of mouth (3.5 ± 0.4) cm of FSHD group were less than those of the control group ( P muscle asymmetr in 11 cases of masseter and 6 cases of medial pterygoid muscle, 5 cases of lateral pterygoid, and these muscle showed mild fatty infiltration mainly concentrating in the grade 0, grade 1 and grade 2. Conclusions: The FSHD patients have poor oral

  14. To evaluate the efficacy of ultrasonography compared to clinical diagnosis, radiography and histopathological findings in the diagnosis of maxillofacial swellings

    Energy Technology Data Exchange (ETDEWEB)

    Pallagatti, Shambulingappa, E-mail: dr.shambulingappa@gmail.com [Department of Oral Medicine and Radiology, M.M. College of Dental Sciences and Research, Mullana, Ambala, Haryana (India); Sheikh, Soheyl; Puri, Nidhi; Mittal, Amit; Singh, Balwinder [Department of Oral Medicine and Radiology, M.M. College of Dental Sciences and Research, Mullana, Ambala, Haryana (India)

    2012-08-15

    Aim: To evaluate the efficacy of Ultrasonography compared to clinical diagnosis, radiography and histopathological findings in the diagnosis of maxillofacial swellings. Material and methods: The study was conducted on forty-five patients with maxillofacial swellings. The clinical diagnosis, radiographic diagnosis and ultrasonographic diagnosis were made which was compared to the histopathological diagnosis. The maxillofacial swellings included cystic lesions, benign swellings, malignant swellings, lymphadenopathies and abscesses and space infections. Results: The diagnostic accuracy and contingency coefficient was evaluated considering histopathology as gold standard. The diagnostic accuracy of ultrasound was found to be 92.30% in the diagnosis of cystic lesions, 87.5% in benign tumors, 81.8% in malignant tumors, 100% in lymphadenopathies and 90% in space infections and abscesses. The contingency coefficient of 0.934 was obtained when ultrasonography was compared to the histopathology, which was highly significant. Similar significant results were obtained comparing ultrasonography with clinical diagnosis (0.895) and radiographic diagnosis (0.889). Conclusion: Ultrasonography provides accurate imaging of the head and neck region and provides information about the nature of the lesion, its extent, and relationship with the surrounding structures. As the conventional and digital radiography enable the diagnosis of the presence of the disease, but do not give any indication of its nature. So, together with clinical and histopathological examinations, real time ultrasound imaging works out as a valuable adjunct in the diagnosis of orofacial swellings.

  15. Imaging analyses of odontogenic infection involving the maxillofacial fascial spaces, with special emphasis on the parapharyngeal space

    Energy Technology Data Exchange (ETDEWEB)

    Ariji, Yoshiko; Gotoh, Masakazu; Izumi, Masahiro; Naitoh, Munetaka; Kurita, Kenichi; Natsume, Nagato; Ariji, Eiichiro [Aichi-Gakuin Univ., Nisshin (Japan). School of Dentistry

    2002-01-01

    The purpose of this study was to investigate odontogenic infection pathways into the maxillofacial fascial spaces, especially into the parapharyngeal space, in relation to causal tooth and clinical symptoms. CT and MR images were retrospectively investigated in 47 patients with spread of odontogenic infection into the maxillofacial spaces. The involvement of spaces was evaluated based on lateral asymmetry of their shapes and density on CT images or intensity on MR images. Involvement on images was observed in 70%, 49%, and 30% of the submandibular, the masticator, and the parapharyngeal spaces, respectively. Patients with submandibular space involvement often had spontaneous pain. Of 14 patients with parapharyngeal space involvement, 8 patients showed dysphagia and/or fever, and 13 patients showed involvement of the mandibular molar as a cause of infection. All of these 14 patients also had submandibular space involvement, while only 7 patients (50%) showed changes in the medial pterygoid muscle. The fat layer between the medial pterygoid muscle and parapharyngeal space was maintained in 11 of 14 (79%) patients with parapharyngeal involvement. CT and MR images clearly demonstrated the spread of odontogenic infection into the maxillofacial spaces. Involvement of the parapharyngeal space was mostly caused by infection originating in the mandibular molar, and was considered to be secondary spread from the submandibular space and/or medial pterygoid muscle. (author)

  16. Assessment of online visibility of the British Association of Oral and Maxillofacial Surgeons (BAOMS): a strategic study.

    Science.gov (United States)

    Abu-Serriah, M; Wong, L; Dhariwal, D; Banks, R J

    2014-02-01

    The Internet is a powerful method of acquiring and sharing information. In marketing and business, online visibility is vital for publicity and the reputation of an organisation. To our knowledge, the importance of such visibility in medicine in general, and in Oral and Maxillofacial Surgery (OMFS) services in the UK, has not previously been investigated. We aimed to provide a better understanding of the way that patients use the Internet by asking 450 patients to complete a questionnaire when they attended outpatient OMFS departments at 2 centres. We also assessed the online visibility of the British Association of Oral and Maxillofacial Surgeons (BAOMS) and investigated the correlation between the strength of online visibility and professional reputation. Results from the self-administered, anonymous, validated questionnaires showed that 82% of patients agreed that the Internet was a powerful source of information, and two-thirds associated online visibility with a good reputation. However, the perceived online visibility of the BAOMS was poor (2%). This study mirrors findings in business publications, and confirms the link between online visibility and professional reputation. It also shows that there is a gap between patients' perceptions and the level of uptake of professional resources. We propose various strategies to bridge this gap and to promote the online visibility and professional reputation of the BAOMS and of OMFS services in the UK. Copyright © 2014 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  17. Injuries in Competitive Dragon Boating.

    Science.gov (United States)

    Mukherjee, Swarup; Leong, Hin Fong; Chen, Simin; Foo, Yong Xiang Wayne; Pek, Hong Kiat

    2014-11-01

    Dragon boating is a fast-growing team water sport and involves forceful repetitive motions that predispose athletes to overuse injuries. Despite the rising popularity of the sport, there is a lack of studies on injury epidemiology in dragon boating. To investigate the injury epidemiology in competitive dragon boating athletes. Descriptive epidemiological study. A total of 95 dragon boaters (49 males, 46 females) representing their respective universities took part in this study. Data were collected retrospectively using a reliable and valid self-report questionnaire. The study period was from August 2012 to July 2013. A total of 104 musculoskeletal injuries were reported (3.82 injuries/1000 athlete-exposures), 99% of which occurred during training. The most commonly injured regions were the lower back (22.1%), shoulder (21.1%), and wrist (17.3%). The majority of injuries were due to overuse (56.3%), and incomplete muscle-tendon strain was the most prevalent type of injury (50.5%). The time loss from injuries varied. In addition, a significant majority of the dragon boating athletes incurred nonmusculoskeletal injuries, with abrasions (90.5%), blisters (78.9%), and sunburns (72.6%) being the most common. Competitive dragon boating has a moderately high injury incidence, and there seems to be a direct relationship between exposure time and injury rate. A majority of the injuries are overuse in nature, and the body parts most actively involved in paddling movement are at higher risk of injuries. The high incidence of nonmusculoskeletal injuries in dragon boaters suggested that these injuries are likely outcomes of participation in the sport.

  18. Overuse Injuries in Professional Ballet

    Science.gov (United States)

    Sobrino, Francisco José; de la Cuadra, Crótida; Guillén, Pedro

    2015-01-01

    Background Despite overuse injuries being previously described as the most frequent in ballet, there are no studies on professional dancers providing the specific clinical diagnoses or type of injury based on the discipline. Hypothesis Overuse injuries are the most frequent injuries in ballet, with differences in the type and frequency of injuries based on discipline. Study Design Cross-sectional study; Level of evidence, 3. Methods This was a descriptive cross-sectional study performed between January 1, 2005, and October 10, 2010, on injuries occurring in professional dancers from leading Spanish dance companies who practiced disciplines such as classical, neoclassical, contemporary, and Spanish ballet. Data, including type of injury, were obtained from specialized medical services at the Trauma Service, Fremap, Madrid, Spain. Results A total of 486 injuries were evaluated, a significant number of which were overuse disorders (P ballet (82.60%). Injuries were more frequent among female dancers (75.90%) and classical ballet (83.60%). A statistically significant prevalence of patellofemoral pain syndrome was found in the classical discipline (P = .007). Injuries of the adductor muscles of the thigh (P = .001) and of the low back facet (P = .02) in the Spanish ballet discipline and lateral snapping hip (P = .02) in classical and Spanish ballet disciplines were significant. Conclusion Overuse injuries were the most frequent injuries among the professional dancers included in this study. The prevalence of injuries was greater for the most technically demanding discipline (classical ballet) as well as for women. Patellofemoral pain syndrome was the most prevalent overuse injury, followed by Achilles tendinopathy, patellar tendinopathy, and mechanical low back pain. Clinical Relevance Specific clinical diagnoses and injury-based differences between the disciplines are a key factor in ballet. PMID:26665100

  19. Manejo terapéutico inicial de las heridas por arma de fuego en el territorio maxilofacial Initial therapeutic management of firearm wounds in the maxillofacial area

    Directory of Open Access Journals (Sweden)

    L. Ruiz Laza

    2006-10-01

    Full Text Available Introducción. Las heridas por armas de fuego son poco frecuentes en nuestro medio, de ahí que la experiencia en el manejo de las mismas sea limitada. En este artículo mostramos la experiencia de nuestro Servicio en el tratamiento de estas lesiones y realizamos una revisión del tema para intentar protocolizar la actuación inicial ante este tipo de pacientes. Material y Método. Presentamos seis casos tratados en nuestro Servicio durante el año 2002. Estudiamos las características demográficas, etiología, patrón de lesiones y tratamiento recibido. Resultados. Cinco hombres y una mujer presentaron heridas por arma de fuego durante este período, con una edad media de 38 años (Rango 13-74. La etiología más frecuente fue la agresión, seguido del intento de autolisis. Sólo un paciente requirió estabilización urgente de vía aérea mediante traqueotomía. No existieron complicaciones postoperatorias y sólo un enfermo requirió intervenciones secundarias por secuelas. Discusión. El aspecto más controvertido en el tratamiento de estas lesiones es el manejo quirúrgico de pacientes con lesiones extensas de la cara que involucran partes blandas y hueso, ya que pueden tratarse con técnicas reconstructivas complejas en el primer acto operatorio o, por el contrario, esta reconstrucción se puede realizar de forma diferida tras una primera fase de tratamiento quirúrgico de desbridamiento, estabilización de fracturas y cierre de partes blandas con técnicas simples. Pensamos que la elección del tipo de tratamiento debe ser individualizada en cada caso, aunque solemos optar por una reconstrucción diferida de los defectos tan pronto como sea posible.Introduction. The firearm injuries are not very common in our country, and the experience in its management is limited. In this review we show the experience of our Service in this wounds and review the literature to systematize the initial management of the firearm injuries in maxillofacial

  20. Peroneal Tendon Injuries

    Science.gov (United States)

    ... Where do you hurt? Interactive Foot Diagram Baseball Injuries to the Foot and Ankle Your feet and ankles take a beating when you’re playing baseball. Baseball players should be aware of the following risks. Ankle sprains may occur while running, fielding balls... Ankle Pain Ankle pain is often ...

  1. Boxing-related head injuries.

    Science.gov (United States)

    Jayarao, Mayur; Chin, Lawrence S; Cantu, Robert C

    2010-10-01

    Fatalities in boxing are most often due to traumatic brain injury that occurs in the ring. In the past 30 years, significant improvements in ringside and medical equipment, safety, and regulations have resulted in a dramatic reduction in the fatality rate. Nonetheless, the rate of boxing-related head injuries, particularly concussions, remains unknown, due in large part to its variability in clinical presentation. Furthermore, the significance of repeat concussions sustained when boxing is just now being understood. In this article, we identify the clinical manifestations, pathophysiology, and management of boxing-related head injuries, and discuss preventive strategies to reduce head injuries sustained by boxers.

  2. Modification of radiation damage by naturally occurring substances

    International Nuclear Information System (INIS)

    Prasad, K.N.

    1984-01-01

    The major objectives of studying the modification of radiation sensitivity have been (1) to identify a compound that will produce a differential protection or sensitization of the effect of irradiation on normal and tumor tissue, and (2) to understand more about the mechanisms of radiation damage. In spite of massive research on this particular problem since World War II, the first objective remains elusive. During this period, numerous radioprotective and radiosensitizing agents have been identified. These agents have served as important biologic tools for increasing our understanding of radiation injuries. Most of these substances are synthetic compounds and are very toxic to humans. In addition, very few of the compounds provide differential modifications of the effect of radiation on tumor and normal cells. This chapter presents objectives for identifying naturally occurring substances that modify the effect of x-radiation on mammalian cells and discusses the role of physiologic substances in modifying radiation injuries on mammalian normal and tumor cells

  3. Incidence and nature of karate injuries.

    Science.gov (United States)

    Destombe, Claire; Lejeune, Laurent; Guillodo, Yannick; Roudaut, Anne; Jousse, Sandrine; Devauchelle, Valérie; Saraux, Alain

    2006-03-01

    To determine the incidence and nature of karate injuries sustained in karate clubs and to identify risk factors for injuries. One hundred eighty-six individuals from three karate clubs in Brest, France, were entered in a retrospective study extending from September 2002 to June 2003. Each athlete was asked to complete a questionnaire on karate injuries sustained during the previous year (type, location, mechanism, exercise during which the injury occurred, number of days off training and work, and medical care). Injury types were described by number of injuries and risk factors per number of injured athletes. Forty-eight (28.8%) of the 186 athletes sustained 83 injuries (63 while training and 20 while competing). The annual injury rate was 44.6 per 100 athletes. Incidence rates were similar in males and females and across the three clubs but increased with age, time spent training (3.6+/-1.7 vs. 2.9+/-1.5 h/week; P=0.001), rank (lower ranks vs. brown and black belts, P=0.015), and years of practice (7.3+/-5.5 years in athletes with injuries vs. 5.1+/-4.8 in those without injuries; P=0.03). Injuries consisted of 43 (53%) hematomas, 16 (19%) sprains, seven (7%) muscle lesions, six (7%) fractures, four (5%) malaise episodes, and seven (7%) miscellaneous lesions. Time off training occurred for 26 (31.3%) injuries and ranged from 8 to >30 days. The body region involved was the head in 22 (26.5%) injuries, the torso in eight injuries (9.6%), the upper limb in 24 (28.9%) injuries, and the lower limb in 29 (35%) injuries. Karate injuries are fairly common but usually minor. They are more likely to occur during competitions than while training. The head and limbs are the main regions involved. Longer training times per week and higher rank are associated with an increased risk of injury. Prevention seems crucial.

  4. Comparing disciplines: outcomes of non melanoma cutaneous malignant lesions in oral and maxillofacial surgery and dermatology.

    Science.gov (United States)

    Thavarajah, M; Szamocki, S; Komath, D; Cascarini, L; Heliotis, M

    2015-01-01

    300 cases of non-melanoma cutaneous lesion procedures carried out by the Oral and Maxillofacial Surgery and Dermatology departments in a North West London hospital over a 6 month period between September 2011 and February 2012 were included in a retrospective case control study. The results from each speciality were compared. The mean age of the OMFS group was 75.8 years compared to 69.9 years in the dermatology group. There was no statistically significant difference in gender between the 2 groups. The OMFS group treated a higher proportion of atypical (17%) and malignant (64.9%) cases compared to the dermatology group (11.3% and 50.5% respectively). This could also account for the fact that the OMFS group carried out a higher number of full excisions compared to dermatology. Both groups had a similar number of false positives (a benign lesion initially diagnosed as malignant) and a similar proportion of false negatives (a malignant lesion initially diagnosed as benign). Overall, the results show that both specialities had similar outcomes when managing non-melanoma cutaneous lesions. Both groups adhere to the guidelines set out by the British Association of Dermatologists and the National Institute of Clinical Excellence when managing such lesions. Crown Copyright © 2014. Published by Elsevier Ltd. All rights reserved.

  5. Color stability of maxillofacial silicone with nanoparticle pigment and opacifier submitted to disinfection and artificial aging.

    Science.gov (United States)

    Filié Haddad, Marcela; Coelho Goiato, Marcelo; Micheline Dos Santos, Daniela; Moreno, Amália; Filipe D'almeida, Nuno; Alves Pesqueira, Aldiéris

    2011-09-01

    The purpose of this study was to evaluate the color stability of a maxillofacial elastomer with the addition of a nanoparticle pigment and∕or an opacifier submitted to chemical disinfection and artificial aging. Specimens were divided into four groups (n = 30): group I: silicone without pigment or opacifier, group II: ceramic powder pigment, group III: Barium sulfate (BaSO(4)) opacifier, and group IV: ceramic powder and BaSO(4) opacifier. Specimens of each group (n = 10) were disinfected with effervescent tablets, neutral soap, or 4% chlorhexidine gluconate. Disinfection was done three times a week during two months. Afterward, specimens were submitted to different periods of artificial aging. Color evaluation was initially done, after 60 days (disinfection period) and after 252, 504, and 1008 h of artificial aging with aid of a reflection spectrophotometer. Data were analyzed by three-way ANOVA and Tukey test (α = 0.05). The isolated factor disinfection did not statistically influence the values of color stability among groups. The association between pigment and BaSO(4) opacifier (GIV) was more stable in relationship to color change (△E). All values of △E obtained, independent of the disinfectant and the period of artificial aging, were considered acceptable in agreement with the norms presented in literature.

  6. Modelling and Experiment Based on a Navigation System for a Cranio-Maxillofacial Surgical Robot

    Science.gov (United States)

    Duan, Xingguang; Gao, Liang; Li, Jianxi; Li, Haoyuan; Guo, Yanjun

    2018-01-01

    In view of the characteristics of high risk and high accuracy in cranio-maxillofacial surgery, we present a novel surgical robot system that can be used in a variety of surgeries. The surgical robot system can assist surgeons in completing biopsy of skull base lesions, radiofrequency thermocoagulation of the trigeminal ganglion, and radioactive particle implantation of skull base malignant tumors. This paper focuses on modelling and experimental analyses of the robot system based on navigation technology. Firstly, the transformation relationship between the subsystems is realized based on the quaternion and the iterative closest point registration algorithm. The hand-eye coordination model based on optical navigation is established to control the end effector of the robot moving to the target position along the planning path. The closed-loop control method, “kinematics + optics” hybrid motion control method, is presented to improve the positioning accuracy of the system. Secondly, the accuracy of the system model was tested by model experiments. And the feasibility of the closed-loop control method was verified by comparing the positioning accuracy before and after the application of the method. Finally, the skull model experiments were performed to evaluate the function of the surgical robot system. The results validate its feasibility and are consistent with the preoperative surgical planning. PMID:29599948

  7. Studies on three-dimensional reproduction of maxillofacial cranium shape, 2

    International Nuclear Information System (INIS)

    Mihara, Manabu

    1984-01-01

    The purpose of the serial studies were to develop a three-dimensional reproduction for diagnosis and surgical therapy planning. In the present study, the author devised the methd of making models reproduced through applying high resolutional computed tomography (GE CT/T). Preliminary examinations were carried out on the CT numbers and on the measurement of CT film images for three-dimensional reproduction. The results are summarized below: 1) There were few hourly changes of CT numbers. 2) At the interspace of the phantom teflon rod and water, CT numbers changed gradually because of the partial volume effect and the edge response. Although the true boundaries of the materials could be indentified with the median CT number of the two substances. 3) Setting up to 1,000 on the window level and 1,200 on the window width, the measurement value of the views of the phantom teflon rod which had been magnified 1.8 power coincided with the true size. 4) Supplementary examinations were carried out on the same methods using a pig mandible, and the results were affirmed. The models were made of acrilic boards which the images of CT films were traced. Those boards were waxed up and trimmed in the boxies for three-dimensional reproduction by using cephalograms. The reproducible accuracy of the completed models was satisfactory for use in the field of the maxillofacial surgery. (author)

  8. Pterygoid implants for maxillofacial rehabilitation of a patient with a bilateral maxillectomy defect.

    Science.gov (United States)

    Bidra, Avinash S; May, George W; Tharp, Greggory E; Chambers, Mark S

    2013-02-01

    Bilateral maxillectomy is known to have serious esthetic and functional consequences. The retention and support of a maxillary obturator prosthesis in these patients is particularly challenging. Surgical placement of implants is also challenging because of the lack of available bone. Therefore, implant placement into remote sites such as zygoma has been advocated. Very few articles in the literature have discussed the use of pterygoid/pterygomaxillary implants in patients undergoing maxillectomy. This case report describes the maxillofacial rehabilitation of an elderly man who underwent a bilateral subtotal maxillectomy due to basaloid squamous cell carcinoma of the hard palate. After initial healing, the patient had a pterygoid implant placed on each side of the oral cavity. Zygomatic implants were also attempted, but they failed to osseointegrate. Both pterygoid implants showed successful osseointegration. These 2 implants significantly helped to retain a hollow maxillary obturator prosthesis that aided in improved swallowing, speech, and esthetics. To the authors' knowledge, this is the first report in the literature that describes usage of pterygoid implants for rehabilitation of a patient undergoing bilateral maxillectomy.

  9. [Gorlin-Goltz syndrome: review of the neuroradiological and maxillofacial features illustrated with two clinical cases].

    Science.gov (United States)

    Safronova, Marta Maia; Arantes, Mavilde; Lima, Iva; Domingues, Sara; Almeida, Marta; Moniz, Pedro

    2010-01-01

    Gorlin-Goltz syndrome or nevoid basal cell carcinoma syndrome is a rare hereditary autosomal-dominant disorder characterized by multiple basal cell carcinomas in young patients, odontogenic keratocysts, palmar or plantar pits, calcification of the falx cerebri and skeletal malformations. This syndrome is due to mutations in PTCH1 (patched homolog 1 da Drosophila), a tumor suppressor gene. Diagnostic criteria were defined by Evans, revised by Kimonis and include major and minor criteria. The authors review in particular the neuroradiological and maxillofacial characteristics of the syndrome. The authors describe the clinical presentation of two children with Gorlin-Goltz syndrome without affected first degree relatives. In both the clinical suspicion of the syndrome is raised by the presence of multiple odontogenic cysts surgically removed. Histopathological exam revealed keratocysts. None of the patients has basal cell carcinomas but both present with skeletal anomalies, namely marked pectus deformity. The absence of major diagnostic criteria like basal cell carcinomas or palmar or plantar pits in young patients delay the early diagnosis and the correct screening for medulloblastoma, basal cell carcinomas and cardiac fibromas. Odontogenic keratocysts are the most consistent clinical finding in Gorlin-Goltz syndrome in the first one or two decades of life. These patients are very sensitive to ionizing radiation, being able to develop basal cell carcinomas and meningiomas. Treatment should accomplish the complete resection of the tumors.

  10. What causes trainees to leave oral and maxillofacial surgery? A questionnaire survey.

    Science.gov (United States)

    Herbert, C; Kent, S; Magennis, P; Cleland, J

    2017-01-01

    Understanding what causes trainees to leave OMFS is essential if we are to retain them within the specialty. Although these factors have been defined for medicine, we know of no previous study for OMFS. An online survey was distributed to roughly 1500 people who had registered an interest in OMFS during the past seven years. Personal information and details of education and employment were gathered along with personal factors that attracted them to OMFS. Of 251 trainees who responded, 50 (30%) were no longer interested. Factors that significantly correlated with an interest in OMFS included male sex (p=0.020), dual qualification (p=0.024), and (only for women) being single (p=0.024) and having no dependants (p=0.005). We used qualitative analysis to identify work-life balance, duration of training, and financial implications, as significant factors. Identification of key factors that affect OMFS trainees allows us to develop ways to keep them in the specialty. The predominant factor is work-life balance, and for women this included having children and being married. Financial issues related to the junior doctors' contract and competition ratios to second degrees, are also factors for both sexes. Also important are the "sunk costs" fallacy that causes some trainees to stay in training. This information can be used to help develop higher training, in negotiations of contracts, and to attract and retain future OMFS trainees. Copyright © 2016 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  11. Rapid prototyping modelling in oral and maxillofacial surgery: A two year retrospective study.

    Science.gov (United States)

    Suomalainen, Anni; Stoor, Patricia; Mesimäki, Karri; Kontio, Risto K

    2015-12-01

    The use of rapid prototyping (RP) models in medicine to construct bony models is increasing. The aim of the study was to evaluate retrospectively the indication for the use of RP models in oral and maxillofacial surgery at Helsinki University Central Hospital during 2009-2010. Also, the used computed tomography (CT) examination - multislice CT (MSCT) or cone beam CT (CBCT) - method was evaluated. In total 114 RP models were fabricated for 102 patients. The mean age of the patients at the time of the production of the model was 50.4 years. The indications for the modelling included malignant lesions (29%), secondary reconstruction (25%), prosthodontic treatment (22%), orthognathic surgery or asymmetry (13%), benign lesions (8%), and TMJ disorders (4%). MSCT examination was used in 92 and CBCT examination in 22 cases. Most of the models (75%) were conventional hard tissue models. Models with colored tumour or other structure(s) of interest were ordered in 24%. Two out of the 114 models were soft tissue models. The main benefit of the models was in treatment planning and in connection with the production of pre-bent plates or custom made implants. The RP models both facilitate and improve treatment planning and intraoperative efficiency. Rapid prototyping, radiology, computed tomography, cone beam computed tomography.

  12. Modelling and Experiment Based on a Navigation System for a Cranio-Maxillofacial Surgical Robot

    Directory of Open Access Journals (Sweden)

    Xingguang Duan

    2018-01-01

    Full Text Available In view of the characteristics of high risk and high accuracy in cranio-maxillofacial surgery, we present a novel surgical robot system that can be used in a variety of surgeries. The surgical robot system can assist surgeons in completing biopsy of skull base lesions, radiofrequency thermocoagulation of the trigeminal ganglion, and radioactive particle implantation of skull base malignant tumors. This paper focuses on modelling and experimental analyses of the robot system based on navigation technology. Firstly, the transformation relationship between the subsystems is realized based on the quaternion and the iterative closest point registration algorithm. The hand-eye coordination model based on optical navigation is established to control the end effector of the robot moving to the target position along the planning path. The closed-loop control method, “kinematics + optics” hybrid motion control method, is presented to improve the positioning accuracy of the system. Secondly, the accuracy of the system model was tested by model experiments. And the feasibility of the closed-loop control method was verified by comparing the positioning accuracy before and after the application of the method. Finally, the skull model experiments were performed to evaluate the function of the surgical robot system. The results validate its feasibility and are consistent with the preoperative surgical planning.

  13. Bone alloplasty and rehabilitation of children with maxillo-facial tumors

    Science.gov (United States)

    Zhelezny, P. A.; Sadovoy, M. A.; Kirilova, I. A.; Zhelezny, S. P.; Podorozhnaya, B. T.; Zheleznaya, A. P.

    2017-09-01

    The clinical observations in the treatment and rehabilitation of 117 children with maxillofacial tumors are presented. Malignant tumors were observed in 4 patients, other 113 children had benign tumors and tumor mass. Different bone defects of maxilla of both sub-total perforating and small segmental cavity appeared after the removal of neoplasms. The orthopedic transplants from the laboratory of tissue preservation of Tsivyan Novosibirsk Research Institute of Traumatology and Orthopedics preserved by different methods were used for maxilla defects restoration. Frozen transplants were applied in 48 patients, "Kostma" transplants were used in 14 patients, "Deprodex"—in 28 patients, "Orgamax"—in 27 patients. Orthopedic transplants from mandibular bone were used for chin and condylar process defects restoration. The orthopedic and orthodontic rehabilitation of the patients with the use of removable and unremovable orthodontic equipment and dental implantation systems was carried out in the postoperative period. Good anatomical functional and esthetic results of rehabilitation were received in 92 patients (89.3%) on long dates by 10 years. In some people the face asymmetry, bite disturbance, reduction of masticatory function were registered.

  14. Accessibility to editorial information in Oral and Maxillofacial Surgery journals: The authors' point of view.

    Science.gov (United States)

    Castelo-Baz, Pablo; Leira-Feijoo, Yago; Seoane-Romero, Juan Manuel; Varela-Centelles, Pablo; Seoane, Juan

    2015-09-01

    To evaluate the accessibility to editorial information in Oral & Maxillofacial Surgery journals. A cross-sectional study using the WOS-Web of Science database in three categories: "Surgery," "Otorhinolaryngology," and "Dentistry, Oral Surgery & Medicine" was designed. Journals were filtered by title and classified under three headings: OMFS specialty; OMFS subspecialty and related sciences; and multidisciplinary journals. Specialty scope (OMFS vs. other); impact factor; path for the manuscript; blinding policy; accessibility to reviewers' criteria; and percentage of acceptance. Only 46 of 330 journals met the inclusion criteria. All OMFS journals provided comprehensive information about the review process, compared to 5 of 27 (18.5%) of Oral Surgery and related sciences periodicals. Most specialty journals do not inform about the blind review mode used (20 of 33; 60.6%). Generally, information about the reviewers' assessment criteria is scarce, but is available from all OMFS journals, which also state the percentage of manuscript acceptance (100% vs. 14.8%). OMFS JCR journals provide adequate information about their editorial process in terms of path for the manuscript, accessibility to reviewers' criteria, and percentage of acceptance. Additional efforts are needed to increase accessibility to information about blinding policy and average time from submission to acceptance. Copyright © 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

  15. Radiofrequency ablation for oral and maxillofacial pathologies: A description of the technique

    Science.gov (United States)

    Tandon, Rahul; Stevens, Timothy W.; Herford, Alan S.

    2014-03-01

    Introduction: Radiofrequency ablation (RFA) refers to a high-frequency current that heats and coagulates tissue. In the standard RFA setup, three components are used: a generator, an active electrode, and a dispersive electrode. RFA has garnered support in many of the surgical fields as an alternative to traditional procedures used in tumor removal. Other methods can prove to be more invasive and disfiguring to the patient, in addition to the unwarranted side effects; however, RFA provides a more localized treatment, resulting in decreased co-morbidity to the patient. Currently, its use in the field of oral and maxillofacial surgery is limited, as its technology has not reached our field. By describing its limited use to the optics community, we hope to expand its uses and provide patients with one more alternative treatment option. Methods and Uses: We will describe the use of RFA on three types of pathology: lymphangioma, rhabdomyoscarcoma, oral squamous cell carcinoma, and neoplastic osseous metastasis. The majority of treatments geared towards these pathologies involve surgical resection, followed by reconstruction. However, damage to vital structures coupled with esthetic disfigurement makes RFA a more valuable alternative. In many of the cases, the tumors were successfully removed without recurrence. Conclusion: While the use of RFA has been scarce in our field, we believe that with more exposure it can gain momentum as an alternative to current treatment options. However, there are improvements that we feel can be made, helping to maximize its effectiveness.

  16. Misdiagnosis of Extensive Maxillofacial Infection and Its Relationship with Periodontal Problems and Hyperglycemia

    Directory of Open Access Journals (Sweden)

    Cristian Statkievicz

    2016-01-01

    Full Text Available Background. Complex dental infections can reach distant areas of the alveolar process, invading the secondary fascial spaces. Objectives. This case report aims to show a misdiagnosis of odontogenic infection and a great need for dentist in the hospital environment. Case Report. A male patient presented facial asymmetry and trismus, while the facial CT examination showed a hyperdense mass involving the left masseteric, pterygomandibular, and superficial temporal regions. The patient was then referred to oral oncology center by emergency physician with cancer suspicion. After 15 days, the patient returned to the same emergency room and was attended by the surgical and maxillofacial trauma team, presenting tachycardia, tachypnea, dysphagia, and trismus. During anamnesis, the patient reported being an uncontrolled diabetic. In intraoral exam, a poor oral condition and generalized periodontitis were observed. Results. Correct diagnosis of odontogenic infection was established and adequately treated. Conclusions. Symptomatology bland may mask the severity of an infection; every increase in volume associated with trismus, poor oral hygiene with or without hyperglycemia should be heavily investigated for the presence of an infectious process. It emphasizes the importance of a dentist working with the physician in emergency room.

  17. Intimate partner violence against women, circumstances of aggressions and oral-maxillofacial traumas: A medical-legal and forensic approach.

    Science.gov (United States)

    de Macedo Bernardino, Ítalo; Santos, Luzia Michelle; Ferreira, Alysson Vinicius Porto; de Almeida Lima, Tomás Lucio Marques; da Nóbrega, Lorena Marques; d'Avila, Sérgio

    2018-03-01

    Intimate partner violence (IPV) is a serious public health problem that frequently results in oral-maxillofacial traumas, generating high social and economic costs. The aim of this study was to describe the profile of women victims of IPV and determine the pattern of oral-maxillofacial traumas, according to a medical-legal and forensic perspective. An exploratory study of 1361 suspected cases of women victims of IPV was carried out based on database of an Institute of Legal Medicine and Forensic Dentistry of Northeastern Brazil during a period of 4 years. Medico-legal and social records of victims were searched for information related to sociodemographic data, circumstances of aggressions and trauma patterns. Descriptive and multivariate statistics and Multiple Correspondence Analysis (MCA) were performed. Almost half of victims exhibited some oral-maxillofacial trauma resulting from IPV (45.8%). Lesions affecting more than one third of the face (41.3%), especially in soft tissues (96.1%) were the most common. Based on the MCA results, two distinct victimization profiles (P1 and P2) have been identified. P1 was mainly characterized by women aged less than 28 years, living in the urban area, with higher education and working. They were assaulted using physical force in community settings perpetrated by former partner or ex-boyfriend during the night and weekends, resulting in oral-maxillofacial traumas. P2 was mainly composed of women aged over 28 years, living in the suburban or rural areas, with low schooling and who did not work. They were assaulted by firearm or weapon in their own home, perpetrated by their partner or boyfriend during the day and weekdays, resulting in trauma to other body parts. Oral and maxillofacial traumas are very common among women victims of IPV who searched for medical-legal service. In this context, forensic dentists can play a key role during the diagnostic process and should always work together with medical, biochemical and

  18. Musculoskeletal injuries in young ballet dancers.

    Science.gov (United States)

    Leanderson, Charlotte; Leanderson, Johan; Wykman, Anders; Strender, Lars-Erik; Johansson, Sven-Erik; Sundquist, Kristina

    2011-09-01

    The aim of this study was to examine the incidence of musculoskeletal injuries, site and type of injury, and the most common injury diagnoses in young ballet dancers at the Royal Swedish Ballet School, a public school in Stockholm. This retrospective study of 476 students (297 girls and 179 boys) aged 10-21 years was based on medical records for the period August 1988 to June 1995. Data on diagnosis, site of injury and type of injury were collected, and the injuries were classified as traumatic or due to overuse. In total, 438 injuries were recorded. The injury incidence rate was 0.8 per 1,000 dance hours in both female and male dancers and tended to increase with increasing age. Most injuries occurred as the result of overuse. Seventy-six per cent of all injuries occurred in the lower extremities. Ankle sprain was the most common traumatic diagnosis, while the most common overuse-related diagnosis was tendinosis pedis. A few gender differences were noted. The findings of this study suggest that there is a need to apply primary injury prevention in young ballet dancers. Future studies could aim to identify (1) injury risk factors and (2) injury prevention programmes that are effective at reducing injury rates in young dancers.

  19. Spinal Cord Injury 101

    Medline Plus

    Full Text Available ... Cord Injury What is a Spinal Cord Injury Levels of Injury and What They Mean Animated Spinal ... Cord Injury What is a Spinal Cord Injury Levels of Injury and What They Mean Animated Spinal ...

  20. Spinal Cord Injury 101

    Medline Plus

    Full Text Available ... Injury Chart Spinal Cord Injury Facts and Figures Care and Treatment After SCI Spinal Cord Injury Rehabilitation ... Injury Chart Spinal Cord Injury Facts and Figures Care and Treatment After SCI Spinal Cord Injury Rehabilitation ...

  1. Needlestick injuries in veterinary medicine.

    Science.gov (United States)

    Weese, J Scott; Jack, Douglas C

    2008-08-01

    Needlestick injuries are an inherent risk of handling needles during the course of veterinary practice. While significant effort has been expended to reduce needlestick injuries in human medicine, a relatively lax approach seems to be prevalent in veterinary medicine. It appears that needlestick injuries are very common among veterinary personnel and that serious adverse effects, while uncommon, do occur. Clients may also receive injuries in clinics during the course of animal restraint, and at home following prescription of injectable medications or fluids. Because of occupational health, personal health, and liability concerns, veterinary practices should review the measures they are taking to reduce the likelihood of needlestick injuries and develop written needlestick injury avoidance protocols.

  2. Community integration after burn injuries.

    Science.gov (United States)

    Esselman, P C; Ptacek, J T; Kowalske, K; Cromes, G F; deLateur, B J; Engrav, L H

    2001-01-01

    Evaluation of community integration is a meaningful outcome criterion after major burn injury. The Community Integration Questionnaire (CIQ) was administered to 463 individuals with major burn injuries. The CIQ results in Total, Home Integration, Social Integration, and Productivity scores. The purposes of this study were to determine change in CIQ scores over time and what burn injury and demographic factors predict CIQ scores. The CIQ scores did not change significantly from 6 to 12 to 24 months postburn injury. Home integration scores were best predicted by sex and living situation; Social Integration scores by marital status; and Productivity scores by functional outcome, burn severity, age, and preburn work factors. The data demonstrate that individuals with burn injuries have significant difficulties with community integration due to burn and nonburn related factors. CIQ scores did not improve over time but improvement may have occurred before the initial 6-month postburn injury follow-up in this study.

  3. An unusual case of orbito-frontal rod fence stab injury with a good outcome.

    Science.gov (United States)

    Miscusi, Massimo; Arangio, Paolo; De Martino, Luca; De-Giorgio, Fabio; Cascone, Piero; Raco, Antonino

    2013-08-13

    High-energy non-missile penetrating injuries (stab injuries) account for a small percentage of penetrating head injuries and they present a series of special features. A 35-year-old man suffered orbito-frontal? and trans-cranial injuries after falling five meters from a terrace onto a rod iron fence. The removal of the metal rod was performed outside the operating room. The orbital roof was exposed and repaired through a bifrontal craniotomy and the frontal sinuses were cranialised. The orbital floor and zygoma were plated with micro-screws. The patient recovered without significant complications, apart from a slight paresis of the right superior rectus; the ocular globe remained intact.The positive outcome obtained in this very challenging case is attributable to the competency of the Neurotrauma Unit and to the use of a synergistic approach which involved the contribution of neurosurgeons, maxillo-facial surgeons, radiologists and anaesthesiologists.

  4. Ocular injury in hurling.

    LENUS (Irish Health Repository)

    Flynn, T H

    2012-02-03

    OBJECTIVES: To describe the clinical characteristics of ocular injuries sustained in hurling in the south of Ireland and to investigate reasons for non-use of protective headgear and eye wear. METHODS: Retrospective review of the case notes of 310 patients who attended Cork University Hospital or Waterford Regional Hospital between 1 January 1994 and 31 December 2002 with ocular injuries sustained during a hurling match. A confidential questionnaire on reasons for non-use of protective headgear and eye wear was completed by 130 players. RESULTS: Hurling related eye injuries occurred most commonly in young men. Fifty two patients (17%) required hospital admission, with hyphaema accounting for 71% of admissions. Ten injuries required intraocular surgical INTERVENTION: retinal detachment repair (5); macular hole surgery (1); repair of partial thickness corneal laceration (1); repair of globe perforation (1); enucleation (1); trabeculectomy for post-traumatic glaucoma (1). Fourteen eyes (4.5%) had a final best corrected visual acuity (BCVA) of <6\\/12 and six (2%) had BCVA <3\\/60. In the survey, 63 players (48.5%) reported wearing no protective facemask while playing hurling. Impairment of vision was the most common reason cited for non-use. CONCLUSIONS: Hurling related injury is a significant, and preventable, cause of ocular morbidity in young men in Ireland. The routine use of appropriate protective headgear and faceguards would result in a dramatic reduction in the incidence and severity of these injuries, and should be mandatory.

  5. Longboard and skateboard injuries.

    Science.gov (United States)

    Keays, Glenn; Dumas, Alex

    2014-08-01

    The causes and events related to skateboarding injuries have been widely documented. However, little is known about longboard-related injuries. With five deaths linked to longboarding in the United States and Canada in 2012, some cities are already considering banning the practice. This study compared the types and causes of longboarding-related injuries to those associated with skateboarding. We conducted a retrospective cohort study, using an emergency-based surveillance system, on patients under the age of 18 who had been injured while longboarding or skateboarding between 2006 and 2010. A total of 287 longboarding and 4198 skateboarding cases were identified. There were more females in the longboarding group (18.8%) than in the skateboarding one (10.7%, p skateboarders were under the age of 11. Longboarders' injuries occurred mainly on streets and roads (75.3% vs. 34.3% in skateboarders, p skateboarders, p skateboarders suffered more injuries to their lower extremities (33.7% vs. 24.7%, p skateboarding. Because longboarders suffer more intracranial injuries, the importance of helmet use should be especially strongly reinforced. Copyright © 2014 Elsevier Ltd. All rights reserved.

  6. Environmental Subconcussive Injury, Axonal Injury, and Chronic Traumatic Encephalopathy

    Directory of Open Access Journals (Sweden)

    Wendy A. Morley

    2018-03-01

    Full Text Available Brain injury occurs in two phases: the initial injury itself and a secondary cascade of precise immune-based neurochemical events. The secondary phase is typically functional in nature and characterized by delayed axonal injury with more axonal disconnections occurring than in the initial phase. Axonal injury occurs across the spectrum of disease severity, with subconcussive injury, especially when repetitive, now considered capable of producing significant neurological damage consistent with axonal injury seen in clinically evident concussion, despite no observable symptoms. This review is the first to introduce the concept of environmental subconcussive injury (ESCI and sets out how secondary brain damage from ESCI once past the juncture of microglial activation appears to follow the same neuron-damaging pathway as secondary brain damage from conventional brain injury. The immune response associated with ESCI is strikingly similar to that mounted after conventional concussion. Specifically, microglial activation is followed closely by glutamate and calcium flux, excitotoxicity, reactive oxygen species and reactive nitrogen species (RNS generation, lipid peroxidation, and mitochondrial dysfunction and energy crisis. ESCI damage also occurs in two phases, with the primary damage coming from microbiome injury (due to microbiome-altering events and secondary damage (axonal injury from progressive secondary neurochemical events. The concept of ESCI and the underlying mechanisms have profound implications for the understanding of chronic traumatic encephalopathy (CTE etiology because it has previously been suggested that repetitive axonal injury may be the primary CTE pathogenesis in susceptible individuals and it is best correlated with lifetime brain trauma load. Taken together, it appears that susceptibility to brain injury and downstream neurodegenerative diseases, such as CTE, can be conceptualized as a continuum of brain resilience. At one end

  7. Augmented reality as an aid in maxillofacial surgery: validation of a wearable system allowing maxillary repositioning.

    Science.gov (United States)

    Badiali, Giovanni; Ferrari, Vincenzo; Cutolo, Fabrizio; Freschi, Cinzia; Caramella, Davide; Bianchi, Alberto; Marchetti, Claudio

    2014-12-01

    We present a newly designed, localiser-free, head-mounted system featuring augmented reality as an aid to maxillofacial bone surgery, and assess the potential utility of the device by conducting a feasibility study and validation. Our head-mounted wearable system facilitating augmented surgery was developed as a stand-alone, video-based, see-through device in which the visual features were adapted to facilitate maxillofacial bone surgery. We implement a strategy designed to present augmented reality information to the operating surgeon. LeFort1 osteotomy was chosen as the test procedure. The system is designed to exhibit virtual planning overlaying the details of a real patient. We implemented a method allowing performance of waferless, augmented-reality assisted bone repositioning. In vitro testing was conducted on a physical replica of a human skull, and the augmented reality system was used to perform LeFort1 maxillary repositioning. Surgical accuracy was measured with the aid of an optical navigation system that recorded the coordinates of three reference points (located in anterior, posterior right, and posterior left positions) on the repositioned maxilla. The outcomes were compared with those expected to be achievable in a three-dimensional environment. Data were derived using three levels of surgical planning, of increasing complexity, and for nine different operators with varying levels of surgical skill. The mean error was 1.70 ± 0.51 mm. The axial errors were 0.89 ± 0.54 mm on the sagittal axis, 0.60 ± 0.20 mm on the frontal axis, and 1.06 ± 0.40 mm on the craniocaudal axis. The simplest plan was associated with a slightly lower mean error (1.58 ± 0.37 mm) compared with the more complex plans (medium: 1.82 ± 0.71 mm; difficult: 1.70 ± 0.45 mm). The mean error for the anterior reference point was lower (1.33 ± 0.58 mm) than those for both the posterior right (1.72 ± 0.24 mm) and posterior left points (2.05 ± 0.47 mm). No significant difference

  8. Immune status changes in patients with phlegmon in the maxillofacial region relation with purulent process prevalence

    Directory of Open Access Journals (Sweden)

    N. G. Barannik

    2016-01-01

    Full Text Available Introduction. Significant portion of patients with acute purulent-inflammatory diseases of the face and neck often has a pronounced secondary immunodeficiency. One manifestation of violation of protective functions in this group of patients are changes in the synthesis of interleukin blood. Knowledge about the of the immune changes in the early stages of the face and neck abscesses development can be used for choosing the right timely empirical therapy. However, the currently available data regarding immune abnormalities in this pathology are controversial. Perhaps this is due to the influence of geographical, environmental and socio-economic factors on the immune status of patients and the results of studies. Thus, to obtain an objective picture of the nature of changes in the body's defenses of patients with inflammatory processes of the face and neck, it is advisable to carry out the study of the state of immunity for each region separately, and that was the basis for this study Aim. to improve pyoinflammatory facial diseases diagnostics on the background of the cytokine status study. Materials and Methods. Serum cytokines (IL-1, TNFα, IL-6, IL-8, IL-4 concentration in 60 patients with maxillofacial phlegmon were determined with ELISA method. All patients were residents of Zaporozhye and the Zaporozhye area. Patients were divided into III groups: the 1st included 40 (66.7% patients with a checkered phlegmons space; 2nd group – 15 (25.0% patients with phlegmons of the more than one space; the 3rd group – 5 (8.3% patients with diffuse face and neck phlegmon, and with mediastinitis. The average age of patients was 37.0±7 years. 21 healthy subjects were included into control group. 5 ml of the peripheral blood was taken from the antecubital vein under aseptic conditions; and was placed in sterile tubes containing 25 IU of heparin per 1ml. Blood was centrifuged at 3000 rev./min for 10 minutes. Serum was dispensed at 0.3 ml. in plastic tubes

  9. Why Do Women Choose to Enter Academic Oral and Maxillofacial Surgery?

    Science.gov (United States)

    Kolokythas, Antonia; Miloro, Michael

    2016-05-01

    To determine why women choose to enter an academic career in oral and maxillofacial surgery (OMS). An online questionnaire was developed and e-mailed to female OMS surgeons to assess the reasons women choose to pursue an academic career, the perceived positive and negative features of academia for women, and proposed measures to increase the percentage of women choosing to specialize in OMS and pursue an academic career. Thirty-one female OMS surgeons completed the questionnaire; 1 additional participant accessed the survey but did not respond to any of the questions. There were 25 full-time academics and 6 part-time academics (≥50% time commitment). Of the responders, 72% were married, and of these, 72% were married before entering academics. Forty-seven percent of the women had children, all during their academic tenure. Among the full-time academicians with children, only 2 (7.7%) reported moderate difficulty finding the time for childbirth and maternity leave, whereas 3 of the 5 part-time academics with children reported moderate or significant difficulty with childbirth and maternity leave. Factors associated with choosing and enjoying an academic career are involvement in resident-student teaching (78%), followed by colleague camaraderie and collaboration (65.6%), research potential (50%), time flexibility, and not having to deal with excessive "business" practice issues (33%). The main reason for considering leaving an academic OMS career and/or among the least enjoyable aspects of being in academics was the potential for a higher income in private practice (56%). Less significant reasons for considering leaving an academic OMS career were a more flexible work schedule in the private sector and less institutional red tape (37.5%), as well as independence/being in control and more family time (22%). Engaging residents and students by female OMS surgeons, better mentorship from academic OMS surgeons, and increasing the number of women serving in leadership

  10. Evaluation of the incorporation of bone grafts used in maxillofacial surgery with [18F]fluoride ion and dynamic positron emission tomography

    International Nuclear Information System (INIS)

    Berding, G.; Burchert, W.; Hoff, J. van den; Pytlik, C.; Neukam, F.W.; Meyer, G.J.; Gratz, K.F.; Hundeshagen, H.

    1995-01-01

    This study investigates the incorporation of bone grafts used in maxillofacial surgery by means of 18 F-fluoride ion and PET. It considers patients who received pedicle grafts for mandibular reconstruction or onlay grafts for alveolar ridge augmentation. Dynamic PET images and arterialized venous blood samples were obtained within a 1-h period after i.v. injection of 18 F-fluoride. Assuming a three-compartment model and applying multilinear least squares fitting, bone blood flow and fluoride influx (K mlf ) were determined. Additionally Patlak plot analysis was used to calculate fluoride influx (K pat ). Early after surgery a significant increase in flow and influx compared to vertebral bodies was observed in the regions of osteosyntheses between grafts used for reconstruction and recipient bone. At the same time pedicle grafts showed a significant increase in flow but not in influx. Furthermore K pat was significantly lower in pedicle grafts than in onlay grafts. In follow-up studies a significant decrease in flow occurred in pedicle grafts and the regions of osteosyntheses. Moreover the latter showed a significant decrease in K mlf as well. It is concluded that 18 F - PET depicted increased blood flow and osteoblastic activity in onlay grafts and regions of osteosyntheses, indicating bone repair in the graft and adjacent host bone early after surgery. For the regions of osteosyntheses the decrease in both parameters corresponded to uncomplicated healing. The lack of increased influx, although flow was increased in pedicle grafts, most likely indicates that some necrosis occurred in these grafts despite patency of anastomoses. It may be concluded that 18 F - PET provides further insight into the biology of graft incorporation. (orig./MG)

  11. Evaluation of the incorporation of bone grafts used in maxillofacial surgery with [{sup 18}F]fluoride ion and dynamic positron emission tomography

    Energy Technology Data Exchange (ETDEWEB)

    Berding, G. [Abt. fuer Nuklearmedizin und Spezielle Biophysik, Medizinische Hochschule, Hannover (Germany); Burchert, W. [Abt. fuer Nuklearmedizin und Spezielle Biophysik, Medizinische Hochschule, Hannover (Germany); Hoff, J. van den [Abt. fuer Nuklearmedizin und Spezielle Biophysik, Medizinische Hochschule, Hannover (Germany); Pytlik, C. [Klinik und Poliklink fuer Mund-, Kiefer- und Gesichtschirurgie, Medizinische Hochschule, Hannover (Germany); Neukam, F.W. [Klinik und Poliklink fuer Mund-, Kiefer- und Gesichtschirurgie, Medizinische Hochschule, Hannover (Germany); Meyer, G.J. [Abt. fuer Nuklearmedizin und Spezielle Biophysik, Medizinische Hochschule, Hannover (Germany); Gratz, K.F. [Abt. fuer Nuklearmedizin und Spezielle Biophysik, Medizinische Hochschule, Hannover (Germany); Hundeshagen, H. [Abt. fuer Nuklearmedizin und Spezielle Biophysik, Medizinische Hochschule, Hannover (Germany)

    1995-10-01

    This study investigates the incorporation of bone grafts used in maxillofacial surgery by means of {sup 18}F-fluoride ion and PET. It considers patients who received pedicle grafts for mandibular reconstruction or onlay grafts for alveolar ridge augmentation. Dynamic PET images and arterialized venous blood samples were obtained within a 1-h period after i.v. injection of {sup 18}F-fluoride. Assuming a three-compartment model and applying multilinear least squares fitting, bone blood flow and fluoride influx (K{sub mlf}) were determined. Additionally Patlak plot analysis was used to calculate fluoride influx (K{sub pat}). Early after surgery a significant increase in flow and influx compared to vertebral bodies was observed in the regions of osteosyntheses between grafts used for reconstruction and recipient bone. At the same time pedicle grafts showed a significant increase in flow but not in influx. Furthermore K{sub pat} was significantly lower in pedicle grafts than in onlay grafts. In follow-up studies a significant decrease in flow occurred in pedicle grafts and the regions of osteosyntheses. Moreover the latter showed a significant decrease in K{sub mlf} as well. It is concluded that {sup 18}F{sup -} PET depicted increased blood flow and osteoblastic activity in onlay grafts and regions of osteosyntheses, indicating bone repair in the graft and adjacent host bone early after surgery. For the regions of osteosyntheses the decrease in both parameters corresponded to uncomplicated healing. The lack of increased influx, although flow was increased in pedicle grafts, most likely indicates that some necrosis occurred in these grafts despite patency of anastomoses. It may be concluded that {sup 18}F{sup -} PET provides further insight into the biology of graft incorporation. (orig./MG)

  12. Quality assurance in digital dental radiography--justification and dose reduction in dental and maxillofacial radiology.

    Science.gov (United States)

    Hellstern, F; Geibel, M-A

    2012-01-01

    To evaluate the implementation of quality assurance requirements for digital dental radiography in routine clinical practice. The results should be discussed by radiation protection authorities in the context of the relevant legal requirements and current debates on radiation protection. Two hundred digital dental radiographs were randomly selected from the digital database of the Department of Dentistry's Dental and Maxillofacial Surgery Clinic, Ulm University, and evaluated for various aspects of image quality and compliance with radiographic documentation requirements. The dental films were prepared by different radiology assistants (RAs) using one of two digital intraoral radiographic systems: Sirona Heliodent DS, 60 kV, focal spot size: 0.7 mm (group A) or KaVo Gendex 765 DC, 65 kV, focal spot size: 0.4 mm (group B). Radiographic justification was documented in 70.5% of cases, and the radiographic findings in 76.5%. Both variables were documented in the patient records as well as in the software in 14% of cases. Clinical documentation of the required information (name of the responsible dentist and radiology assistant, date, patient name, department, tube voltage, tube current, exposure time, type of radiograph, film size, department and serial number of the dental radiograph) was 100% complete in all cases. Moreover, the department certified according to DIN ISO 9001:2008 specifications demonstrated complete clinical documentation of radiographic justifications and radiographic findings. The entire dentition was visible on 83% of the digital films. The visible area corresponded to the target region on 85.7% of the digital dental radiographs. Seven to 8.5% of the images were classified as "hypometric" or "hypermetric". This study indicates that improvements in radiology training and continuing education fordentists and dental staff performing x-ray examinations are needed to ensure consistent high quality of digital dental radiography. Implementation of

  13. Dental and maxillofacial characteristics of six Japanese individuals with ectrodactyly-ectodermal dysplasia-clefting syndrome.

    Science.gov (United States)

    Okamura, Erika; Suda, Naoto; Baba, Yoshiyuki; Fukuoka, Hiroki; Ogawa, Takuya; Ohkuma, Mizue; Ahiko, Nozomi; Yasue, Akihiro; Tengan, Toshimoto; Shiga, Momotoshi; Tsuji, Michiko; Moriyama, Keiji

    2013-03-01

    Objective : Ectrodactyly-ectodermal dysplasia-clefting syndrome is a congenital anomaly characterized by ectodermal dysplasia, ectrodactyly, cleft lip and palate, and lacrimal duct anomalies. Because this syndrome is frequently accompanied by a congenital lack of teeth, narrow palate, and malocclusion, comprehensive orthodontic intervention is required. Design : To highlight the specific dental and maxillofacial characteristics of ectrodactyly-ectodermal dysplasia-clefting syndrome, six Japanese individuals diagnosed with the syndrome are described here. Patients : The subjects consisted of two boys and four girls (age range, 6.0 to 13.9 years) diagnosed with ectrodactyly-ectodermal dysplasia-clefting syndrome by medical and dental specialists. Their conditions included ectodermal dysplasia (hypodontia, microdontia, enamel hypoplasia, and abnormalities in hair and nails), cleft lip and/or palate, and ectrodactyly. Cephalograms, panoramic x-rays, and dental casts were taken; systemic complications were recorded at the first visit to our dental hospital. Results : All individuals had severe oligodontia with 9 to 18 missing teeth. The missing teeth were mainly maxillary and mandibular incisors and second bicuspids, arranged in a symmetrical manner. Cephalometric analysis showed retruded and short maxilla due to cleft lip and/or palate. It is interesting that all individuals showed a characteristically shaped mandibular symphysis with a retruded point B. It is likely that this unusual symphyseal morphology is due to the lack of mandibular incisors. Conclusions : This study demonstrates the presence of severe oligodontia in the incisal and premolar regions and describes a characteristic maxillary and mandibular structure in Japanese individuals with ectrodactyly-ectodermal dysplasia-clefting syndrome.

  14. Markerless laser registration in image-guided oral and maxillofacial surgery.

    Science.gov (United States)

    Marmulla, Rüdiger; Lüth, Tim; Mühling, Joachim; Hassfeld, Stefan

    2004-07-01

    The use of registration markers in computer-assisted surgery is combined with high logistic costs and efforts. Markerless patient registration using laser scan surface registration techniques is a new challenging method. The present study was performed to evaluate the clinical accuracy in finding defined target points within the surgical site after markerless patient registration in image-guided oral and maxillofacial surgery. Twenty consecutive patients with different cranial diseases were scheduled for computer-assisted surgery. Data set alignment between the surgical site and the computed tomography (CT) data set was performed by markerless laser scan surface registration of the patient's face. Intraoral rigidly attached registration markers were used as target points, which had to be detected by an infrared pointer. The Surgical Segment Navigator SSN++ has been used for all procedures. SSN++ is an investigative product based on the SSN system that had previously been developed by the presenting authors with the support of Carl Zeiss (Oberkochen, Germany). SSN++ is connected to a Polaris infrared camera (Northern Digital, Waterloo, Ontario, Canada) and to a Minolta VI 900 3D digitizer (Tokyo, Japan) for high-resolution laser scanning. Minimal differences in shape between the laser scan surface and the surface generated from the CT data set could be detected. Nevertheless, high-resolution laser scan of the skin surface allows for a precise patient registration (mean deviation 1.1 mm, maximum deviation 1.8 mm). Radiation load, logistic costs, and efforts arising from the planning of computer-assisted surgery of the head can be reduced because native (markerless) CT data sets can be used for laser scan-based surface registration.

  15. Telemedicine Consultations in Oral and Maxillofacial Surgery: A Follow-Up Study.

    Science.gov (United States)

    Wood, Eric W; Strauss, Robert A; Janus, Charles; Carrico, Caroline K

    2016-02-01

    The purpose of this study was to follow up on the previous study in evaluating the efficiency and reliability of telemedicine consultations for preoperative assessment of patients. A retrospective study of 335 patients over a 6-year period was performed to evaluate success rates of telemedicine consultations in adequately assessing patients for surgical treatment under anesthesia. Success or failure of the telemedicine consultation was measured by the ability to triage patients appropriately for the hospital operating room versus the clinic, to provide an accurate diagnosis and treatment plan, and to provide a sufficient medical and physical assessment for planned anesthesia. Data gathered from the average distance traveled and data from a previous telemedicine study performed by the National Institute of Justice were used to estimate the cost savings of using telemedicine consultations over the 6-year period. Practitioners performing the consultation were successful 92.2% of the time in using the data collected to make a diagnosis and treatment plan. Patients were triaged correctly 99.6% of the time for the clinic or hospital operating room. Most patients (98.0%) were given sufficient medical and physical assessment and were able to undergo surgery with anesthesia as planned at the clinic appointment immediately after telemedicine consultation. Most patients (95.9%) were given an accurate diagnosis and treatment plan. The estimated amount saved by providing consultation by telemedicine and eliminating in-office consultation was substantial at $134,640. This study confirms the findings from previous studies that telemedicine consultations are as reliable as those performed by traditional methods. Copyright © 2016 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  16. Diagnostic and prognostic value of {sup 99m}Tc-tetrofosmin scintigraphy in maxillofacial flaps

    Energy Technology Data Exchange (ETDEWEB)

    Aigner, Reingard M.; Sorantin, Erich [Department of Radiology, Division of Nuclear Medicine, Karl-Franzens University Graz, Auenbruggerplatz 9, 8036 Graz (Austria); Schultes, Guenter [Department of Oral and Maxillofacial Surgery, Karl-Franzens University Graz (Austria)

    2003-02-01

    In oro-maxillofacial malignancies, new therapeutic approaches are placing changing demands on the diverse diagnostic modalities. In contradistinction to mandibular reconstruction of former years, the transplants (microvascular anastomosed pedicled flaps, ''flaps'') now consist of one or more arteries feeding a soft tissue component attached to a piece of bone suitably fitted to fill the defect. We addressed the diagnostic value of technetium-99m tetrofosmin scintigraphy in differentiating between viability and non-viability of the soft tissue portion of flaps in the immediate postoperative assessment. A total of 60 patients who had received flaps for reconstruction of the mandible after partial resection were investigated with {sup 99m}Tc-tetrofosmin 3-5 days after surgery. Scintigraphy consisted of (a) radionuclide angiography, (b) static planar imaging in four projections starting at 10 min post injection, and (c) single-photon emission tomography (SPET) performed immediately after the planar imaging. Normal perfusion associated with no defects throughout the soft tissue portion of the transplant was observed in 46/60 patients. This scintigraphic pattern was identical to viability and normal postoperative follow-up. Hypoperfusion and small defects on planar and SPET images indicated viability and uncomplicated postoperative healing in 6/60 patients, but non-viability/inadequate healing of the flap in 4/60 patients. Absence of perfusion combined with a large defect on static planar and SPET images definitively showed the non-viability of the flap (4/60 patients). It is concluded that {sup 99m}Tc-tetrofosmin scintigraphy is a sensitive diagnostic tool for the immediate postoperative assessment of the viability and the adequacy of implantation of the soft tissue portion of flaps. Therefore tetrofosmin scintigraphy is an important modality in order (a) to define the optimal therapeutic regimen in the immediate postoperative period and (b) to

  17. Osteosíntesis maxilofacial con materiales reabsorbibles Maxillofacial osteosynthesis with resorbable material

    Directory of Open Access Journals (Sweden)

    J.L. López-Cedrún Cembranos

    2004-12-01

    Full Text Available La popularización de la combinación de ácidos poliláctico y poliglicólico ha hecho que estos nuevos materiales se utilicen cada vez más en la osteosíntesis maxilofacial, no solo en su aplicación pediátrica, sino también en adultos. Aunque todavía presentan algunas desventajas en relación con el titanio, como la mayor incomodidad de uso y el coste económico, la experiencia acumulada demuestra que es una alternativa válida a la osteosíntesis con titanio en la mayoría de las situaciones clínicas. En este artículo se analizan las características y cualidades de los materiales reabsorbibles empleados en osteosíntesis maxilofacial. Así mismo, se discuten las ventajas y desventajas de ambos tipos de osteosíntesis y se documentan las indicaciones actuales de la osteosíntesis reabsorbible basándonos en nuestra experiencia y en la revisión de la literatura.Resorbable plates and screws composed of polylactic and polyglycolic acid, as internal fixation devices have gained widespread use during recent years in pediatric and also adult patients. Although these materials show some disadvantages when compared with titanium plates, such as discomfort and economical cost, accumulated experience shows that resorbable ostheosynthesis is a reliable alternative to the titanium osteosynthesis used in most clinical cases. In this paper we analyze the main characteristics of resorbable materials used in maxillofacial osteosynthesis. We discuss the advantages and disadvantages of both types of osteosynthesis and the indications for resorbable ostheosynthesis at the present time, based on our experience and on a revision of the literature.

  18. Injury risk in professional boxing.

    Science.gov (United States)

    Bledsoe, Gregory H; Li, Guohu; Levy, Fred

    2005-10-01

    Although a popular endeavor, boxing has fallen under increased scrutiny because of its association with traumatic brain injury. However, few studies have investigated the overall epidemiology of boxing injuries from representative samples, and no study has ever documented the incidence of injuries in female boxers. This study is a review of professional boxing data from the state of Nevada from September 2001 through March 2003. Medical and outcome data for all professional boxing matches occurring in Nevada between September 2001 and March 2003 (n = 524 matches) were analyzed on the basis of a pair-matched, case-control design. Cases were boxers who received an injury during the boxing matches. Boxers who were not injured served as control subjects. Both conditional and unconditional logistic regression models were used to assess risk factors for injury. The overall incidence rate of injury was 17.1 per 100 boxer-matches, or 3.4 per 100 boxer-rounds. Facial laceration accounted for 51% of all injuries, followed by hand injury (17%), eye injury (14%), and nose injury (5%). Male boxers were significantly more likely than female boxers to receive injuries (3.6 versus 1.2 per 100 boxer-rounds, P = 0.01). Male boxing matches also ended in knockouts and technical knockouts more often than did female matches (P boxing matches is high, particularly among male boxers. Superficial facial lacerations are the most common injury reported. Male boxers have a higher rate of knockout and technical knockouts than female boxers. Further research is necessary to determine the outcomes of injury, particularly the long-term neurologic outcome differences between sexes.

  19. Cerebral Vascular Injury in Traumatic Brain Injury.

    Science.gov (United States)

    Kenney, Kimbra; Amyot, Franck; Haber, Margalit; Pronger, Angela; Bogoslovsky, Tanya; Moore, Carol; Diaz-Arrastia, Ramon

    2016-01-01

    Traumatic cerebral vascular injury (TCVI) is a very frequent, if not universal, feature after traumatic brain injury (TBI). It is likely responsible, at least in part, for functional deficits and TBI-related chronic disability. Because there are multiple pharmacologic and non-pharmacologic therapies that promote vascular health, TCVI is an attractive target for therapeutic intervention after TBI. The cerebral microvasculature is a component of the neurovascular unit (NVU) coupling neuronal metabolism with local cerebral blood flow. The NVU participates in the pathogenesis of TBI, either directly from physical trauma or as part of the cascade of secondary injury that occurs after TBI. Pathologically, there is extensive cerebral microvascular injury in humans and experimental animal, identified with either conventional light microscopy or ultrastructural examination. It is seen in acute and chronic TBI, and even described in chronic traumatic encephalopathy (CTE). Non-invasive, physiologic measures of cerebral microvascular function show dysfunction after TBI in humans and experimental animal models of TBI. These include imaging sequences (MRI-ASL), Transcranial Doppler (TCD), and Near InfraRed Spectroscopy (NIRS). Understanding the pathophysiology of TCVI, a relatively under-studied component of TBI, has promise for the development of novel therapies for TBI. Published by Elsevier Inc.

  20. Injury and injury rates in Muay Thai kick boxing.

    Science.gov (United States)

    Gartland, S; Malik, M H; Lovell, M E

    2001-10-01

    To determine the type and number of injuries that occur during the training and practice of Muay Thai kick boxing and to compare the data obtained with those from previous studies of karate and taekwondo. One to one interviews using a standard questionnaire on injuries incurred during training and practice of Muay Thai kick boxing were conducted at various gyms and competitions in the United Kingdom and a Muay Thai gala in Holland. A total of 152 people were questioned, 132 men and 20 women. There were 19 beginners, 82 amateurs, and 51 professionals. Injuries to the lower extremities were the most common in all groups. Head injuries were the second most common in professionals and amateurs. Trunk injuries were the next most common in beginners. The difference in injury distribution among the three groups was significant (pinjury in the three groups. Fractures were the second most common in professionals, and in amateurs and beginners it was sprains and strains (pinjury rates were: beginners, 13.5/1000 participants; amateurs, 2.43/1000 participants; professionals, 2.79/1000 participants. For beginners, 7% of injuries resulted in seven or more days off training; for amateurs and professionals, these values were 4% and 5.8% respectively. The results are similar to those found for karate and taekwondo with regard to injury distribution, type, and rate. The percentage of injuries resulting in time off training is less.

  1. Snowboarding injuries, a four-year study with comparison with alpine ski injuries.

    Science.gov (United States)

    Davidson, T M; Laliotis, A T

    1996-03-01

    Snowboarding is a rapidly growing winter sport. Its unorthodox maneuvers and young participants raise many safety concerns. We examined injury patterns in recreational snowboarders, comparing these patterns with those found in alpine skiers. Snowboarding and skiing injury patterns differed significantly (P knee (17% versus 39%) or thumb (2% versus 4%) injuries than skiers. For snowboarders, wrist injuries were most common in beginners (30%), knee injuries in low intermediates (28%), ankle injuries in intermediates (17%), and shoulder or clavicle injuries in advanced snowboarders (14%). Most snowboarders (90%) wore soft-shelled boots, 73% of lower extremity injuries occurred to the lead-foot side, and 73% of wrist injuries occurred during backward falls; 67% of knee injuries occurred during forward falls. Of all injuries, 8% occurred while loading onto or unloading from a ski lift. The sport of snowboarding brings with it a different set of injuries from those seen in alpine skiing. The data focus attention on improvements such as wrist guards or splints, releasable front-foot bindings, and better instruction for beginner snowboarders to improve the safety of this sport. Finally, the data confirm that snowboarders and skiers may be safely combined on the same slopes.

  2. Ocular Injury

    Science.gov (United States)

    ... trauma can happen at home, school, play or sports. Most common injuries are scratches to the cornea or blunt trauma. Approved and tested eye and face protection is essential to prevent injuries. Sports such as hockey, baseball, racquet ball, squash, and ...

  3. Rowing Injuries

    DEFF Research Database (Denmark)

    Thornton, Jane S; Vinther, Anders; Wilson, Fiona

    2017-01-01

    understanding in pre-participation screening, training load, emerging concepts surrounding back and rib injury, and relative energy deficiency in sport. Through a better understanding of the nature of the sport and mechanisms of injury, physicians and other healthcare providers will be better equipped to treat...

  4. Dental students’ perceptions of undergraduate clinical training in oral and maxillofacial surgery in an integrated curriculum in Saudi Arabia

    Directory of Open Access Journals (Sweden)

    Mahmoud Al-Dajani

    2015-09-01

    Full Text Available Purpose: The aim was to understand dental students’ experiences with oral and maxillofacial surgery (OMS teaching, their confidence levels in performing routine dento-alveolar operations, and the relationship between the students’ confidence level and the number of teeth extracted during the clinical practice. Methods: The survey questionnaire was distributed to 32 students at Aljouf University College of Dentistry, Saudi Arabia during their fourth and fifth year in 2015. Respondents were asked to rate 19 items, which represent a student’s confidence in performing routine surgical interventions, using a four-point Likert scale (1=very little confidence, 4=very confident. A multivariate regression was computed between average confidence and the variables: weekly hours devoted to studying oral and maxillofacial surgery, college grade point average, and the total number of teeth extracted. Results: The response rate was 100%. Students revealed the highest level of confidence in giving local anesthesia (96.9%, understanding extraction indications (93.8%, and performing simple extractions (90.6%. Less confidence was shown with handling difficult extractions (50.0%, extracting molars with separation (50.0% or extracting third molars (56.3%. The average confidence in performing surgical procedures was 2.88 (SD=0.55, ranging from 1.79 to 3.89. A given student’s confidence increased with an increase in the total number of teeth extracted (P=0.003. Conclusion: It reveals a significant impact of undergraduate clinical training on students’ confidence in performing oral and maxillofacial surgery clinical procedures: The more clinical experience the students had, the more confidence they reported.

  5. Influence of low-level laser therapy on the healing of human bone maxillofacial defects: A systematic review.

    Science.gov (United States)

    Santinoni, Carolina Dos Santos; Oliveira, Hiskell Francine Fernandes; Batista, Victor Eduardo de Souza; Lemos, Cleidiel Aparecido Araujo; Verri, Fellippo Ramos

    2017-04-01

    This systematic review evaluates the effectiveness of low-level laser therapy (LLLT) to enhance maxillofacial area bone repair. A comprehensive search of studies published up to February 2017 and listed in PubMed/MEDLINE, Scopus, and Cochrane Library databases was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. The 15 selected studies evaluated a total of 374 patients (mean age, 28.5years) who were treated with LLLT. Gallium-arsenide (GaAs) and gallium aluminium arsenide (GaAlAs) were the most commonly used devices, and LLLT parameters varied greatly. Wavelengths varied from 500 to 1000nm. Tooth extraction, distraction osteogenesis, maxillary expansion, periodontal defects, orthodontic movement and maxillary cystic defects were evaluated. From the 15 selected studies, six evaluated bone repair (primary outcomes). Of these, four studies showed improvement in bone formation after using LLLT, two demonstrated improved results for only one follow up period, and one showed no additional benefits. The other 9 studies evaluated secondary parameters related to healing (secondary outcomes) in the maxillofacial area after applying LLLT, including anti-inflammatory, analgesic, and healing accelerator effects, and quality of life related to oral health. There were no adverse or negative effects of LLLT reported. Within the limitation of this review, a possible improvement in bone density can be found when LLLT is applied postoperatively in maxillofacial bony defects. LLLT also seems to promote anti-inflammatory and analgesic effects and accelerate healing, as well as enhance quality of life related to oral health. However, LLLT use protocols need to be standardized before more specific conclusions can be drawn about this subject. Copyright © 2017 Elsevier B.V. All rights reserved.

  6. Missed injuries in the era of the trauma scan.

    Science.gov (United States)

    Lawson, Christy M; Daley, Brian J; Ormsby, Christine B; Enderson, Blaine

    2011-02-01

    A rapid computed tomography technique or "trauma scan" (TS) provides high-resolution studies of the head, cervical spine, chest, abdomen, and pelvis. We sought to determine whether TS has decreased missed injuries. A previous study of TS found a 3% missed rate. After institutional review board approval, trauma patients from January 2001 through December 2008 were reviewed for delayed diagnosis (DD) of injury to the head, cervical spine, chest, abdomen, or pelvis. Missed extremity injuries were excluded. Injury Severity Score, length of stay, type of injury, outcomes, and days to detection were captured. Of 26,264 patients reviewed, 90 patients had DD, with an incidence of 0.34%. DD most commonly presented on day 2. Injuries included 16 bowel/mesentery, 12 spine, 11 pelvic, 8 spleen, 6 diaphragm, 5 clavicle, 4 scapula, 4 cervical spine, 4 intracranial, 4 sternum, 3 maxillofacial, 3 liver, 2 heart/aorta, 2 vascular, 2 urethra/bladder, 2 pneumothorax, and 2 pancreas/common bile duct. DD resulted in 1 death, 6 prolonged intensive care unit stays, 19 operative interventions, and 38 additional interventions. TS is an effective way of evaluating trauma patients for intracranial, cervical spine, chest, abdomen, and pelvic injuries that have the potential to impact morbidity and mortality. The incidence of injuries missed in these crucial areas has been reduced at our institution by the use of this radiographic modality. The most common missed injury remains bowel, and so a high index of suspicion and the tertiary survey must remain a mainstay of therapy.

  7. Effectiveness of hyperbaric oxygen therapy in irradiated maxillofacial dental implant patients: A systematic review with meta-analysis

    Directory of Open Access Journals (Sweden)

    Darshana Nilesh Shah

    2017-01-01

    Full Text Available The significantly higher implant failure rates in maxillofacial patients, undergoing radiotherapy, might be caused by the long-term effects of reduced vascularization compromising the implantation site. An extensive preclinical animal literature and a multitude of clinical reports suggest the use of hyperbaric oxygen (HBO therapy as it can improve the tissue vascularity. Hence, it may increase the implant survival rate by enhancing osseointegration process in such patients. The objective of this systematic review was to investigate the effectiveness of HBO therapy on dental implant survival rate in irradiated maxillofacial patients who require prosthodontic rehabilitation. An electronic search without time restrictions was undertaken in April 2016 using databases: PubMed, Google Scholar, and the Cochrane Oral Health Group Trials Register. We also tried to contact the manufacturers and researchers in the field for necessary details. Clinical human studies, on irradiated maxillofacial dental implant patients, including randomized controlled trials (RCTs, prospective controlled trials, retrospective studies, and preliminary reports were included in the study. Data collection was carried out by two of the authors' independently. The titles and abstracts of all reports were screened for the study design and type of reported intervention; all the duplicates were removed. The data search yielded 62 titles, out of which 14 articles were selected for the study by the article filtration criteria: Title/abstract/full text. Data which were extracted by two authors with any disagreement were resolved by the third author, and a meta-analysis was done using binary random-effect model. The results show decreased implant failure rate in HBO group (9.21% compared to non-HBO group (22.44%. The potential limitations of this study are amount of radiation doses used, period lasting from radiotherapy to the placement of the implants, and follow-up period which varies

  8. School environment and school injuries

    Directory of Open Access Journals (Sweden)

    Simo eSalminen

    2014-01-01

    Full Text Available Background: Although injuries at school are an important issue in public health, environmental factors in schools and school yards have seldom been the focus of school injury research. The goal of our investigation was to examine the effect of environmental factors on school injuries. Methods: Nine comprehensive Finnish schools registered school injuries over a period of two school years. Injuries were classified as being associated with environmental factors, suspected environmental factors, and others. The consensus between two independent classifiers was 81%. Results: A total of 722 injuries were classified. In 11.6% of these injuries, the physical environment factor was evident, and in 28.1% of the injuries, physical environment was suspected of being a contributory risk factor. Thus the physical environment of the school was a contributing factor in over a third (39.7% of injuries occurring in the school, on the school yard or during the journey to or from school. In this study, conducted in Finland, ice on the ground was mentioned most frequently as an environmental risk factor. Conclusions: In Finland, the Nordic weather conditions are not taken into account in the school yard and playground plans as they ought to from the safety point of view. An initiative has been launched on a mandatory wintertime master plan for every school yard.

  9. Dirt bikes injuries in children.

    Science.gov (United States)

    Abdelgawad, A A; Maxfield, D; Tran, S; Mclean, S; Kanlic, E M

    2013-12-01

    Dirt bike riding is becoming a more popular recreational activity among children. Injuries associated with this recreational activity did not gain attention in the medical literature. The purpose of this study is to assess orthopedic injuries associated with dirt bike riding. We retrospectively studied injuries occurring in children less than 18 years old, while riding dirt bikes, that required admission to the trauma department in our level one trauma center during the period 2000-2010. There were 24 admissions (23 patients). The mean age was 13. Fourteen patients had brain injuries. Six patients had abdominal injuries. One patient died shortly after arriving to the emergency department. Fourteen patients had face and neck injuries. The average injury severity score was 8.5. Thirteen patients' admissions (54 %) had orthopedic fractures. Five of 13 patients (38 %) suffered more than one fracture. Eight patients needed orthopedic intervention (seven of these were in operating room under general anesthesia and one in the emergency department under conscious sedation). Femur fracture was the most common cause for performing surgery in this group of patients. Riding dirt bikes is not a safe recreational activity. Orthopedic injuries constitute a major component of the injuries affecting children riding dirt bikes. Orthopedic surgeons (being responsible for treating most of these children) have the obligation to warn the community against the possible dangers facing children who ride dirt bikes.

  10. Sport injuries of the cervical spine

    International Nuclear Information System (INIS)

    Bargon, G.

    1981-01-01

    The article reports on injuries of the cervical spine occurring during sports activities. An attempt is made to reconstruct the movements which led to the cervical spine injuries in question. In two cases of accidents occuring during bathing, one football accident and a toboggan accident, the injuries concerned point to hyperextension of the cervical spine as cause of the injury. In another football accident and a riding accident, the changes observed allow us to conclude that the movement leading to the injury must have been a hyperflexion. One accident occurring while jumping on the trampolin resulted in an injury of the upper cervical spine pointing to the action of a compressive force on the cervical spine in addition to the force resulting in hyperflexion. (orig.) [de

  11. Sport injuries of the cervical spine

    Energy Technology Data Exchange (ETDEWEB)

    Bargon, G

    1981-03-01

    The article reports on injuries of the cervical spine occurring during sports activities. An attempt is made to reconstruct the movements which led to the cervical spine injuries in question. In two cases of accidents occuring during bathing, one football accident and a toboggan accident, the injuries concerned point to hyperextension of the cervical spine as cause of the injury. In another football accident and a riding accident, the changes observed allow us to conclude that the movement leading to the injury must have been a hyperflexion. One accident occurring while jumping on the trampolin resulted in an injury of the upper cervical spine pointing to the action of a compressive force on the cervical spine in addition to the force resulting in hyperflexion.

  12. Trampoline-related injuries.

    Science.gov (United States)

    Larson, B J; Davis, J W

    1995-08-01

    Two hundred and seventeen patients who had sustained an injury during the recreational use of a trampoline were managed in the emergency room of Logan Regional Hospital in Logan, Utah, from January 1991 through December 1992. We retrospectively reviewed the charts and radiographs of these patients to categorize the injuries. Additional details regarding the injuries of seventy-two patients (33 per cent) were obtained by means of a telephone interview with use of a questionnaire. The injuries occurred from February through November, with the peak incidence in July. The patients were eighteen months to forty-five years old (average, ten years old); ninety-four patients (43 per cent) were five to nine years old. Eighty-four patients (39 per cent) sustained a fracture; fifty-four (25 per cent), a sprain or strain; forty-five (21 per cent), a laceration; and thirty-four (16 per cent), a contusion. Fifty-seven injuries (26 per cent) involved the elbow or forearm; forty-six (21 per cent), the head or neck; forty (18 per cent), the ankle or foot; thirty-three (15 per cent), the knee or leg; nineteen (9 per cent), the trunk or back; thirteen (6 per cent), the shoulder or arm; and nine (4 per cent), the wrist or hand. Thirteen patients (6 per cent) had a back injury, but none of them had a permanent neurological deficit. One patient who had an ocular injury was transferred to a tertiary care center. One hundred and fifty-six patients (72 per cent) were evaluated radiographically, fifteen (7 per cent) were admitted to the hospital, and thirteen (6 per cent) had an operation.(ABSTRACT TRUNCATED AT 250 WORDS)

  13. The epidemiology of schoolboy rugby injuries.

    Science.gov (United States)

    Roux, C E; Goedeke, R; Visser, G R; van Zyl, W A; Noakes, T D

    1987-03-07

    During one 18-week season, in which players from 26 high schools played 3,350 rugby matches, 495 injuries prevented players from participating in rugby for at least 1 week; 71% occurred during matches and 29% during practices. Injury was more common during the first 4 weeks of the season and again in the same time period after the mid-season vacation. At all ages, A-team players suffered the greatest number of injuries. The safest playing positions were tight-forward and scrum-half; the most dangerous loose-forward and in the back-line excluding the scrum-half. Overall, eightmen were the most often injured players. Of all injuries 55% occurred while the player was tackling or being tackled and 18% during the loose scrum/maul. The lower limb (37%), the head and neck (29%) and the upper limb (20%) were most commonly injured, and fractures (27%), ligament/tendon injuries (25%) and muscle injuries (17%) were commonest. However, concussion injuries were underreported in 19 of the 26 schools. This study shows: that monitoring rugby injuries through correspondence results in underreporting of injuries; that rugby injuries show specific trends with age, team level, playing position, time of the season and phase of play; and that players in the different positions suffer specific injuries in predictable phases of the game. Speed of play may be the most important aetiological factor in the majority of rugby injuries.

  14. Injury - kidney and ureter

    Science.gov (United States)

    ... kidney; Ureteral injury; Pre-renal failure - injury, Post-renal failure - injury; Kidney obstruction - injury Images Kidney anatomy Kidney - blood and urine flow References Molitoris BA. Acute kidney injury. In: Goldman ...

  15. Spinal Cord Injury 101

    Medline Plus

    Full Text Available menu Understanding Spinal Cord Injury What is a Spinal Cord Injury Levels of Injury and What They Mean Animated Spinal Cord Injury Chart Spinal Cord Injury Facts and Figures Care and Treatment After SCI Spinal ...

  16. Repetitive Stress Injuries

    Science.gov (United States)

    ... Safe Videos for Educators Search English Español Repetitive Stress Injuries KidsHealth / For Teens / Repetitive Stress Injuries What's ... t had any problems since. What Are Repetitive Stress Injuries? Repetitive stress injuries (RSIs) are injuries that ...

  17. Whiplash Injuries: An Update

    Directory of Open Access Journals (Sweden)

    Robert W Teasell

    1998-01-01

    Full Text Available Whiplash injuries remain a significant public health problem throughout the developed industrialized world, with significant socioeconomic consequences. Studies looking at the natural history of whiplash injuries have suffered from problems of selection bias, retrospective reviewing and unclear outcomes. Etiology continues to be controversial, largely because of the misconception that all soft tissue injuries heal within six weeks. Recent studies have implicated the cervical facet joint as a cause of whiplash injury pain. A recent treatment study that successfully eliminated whiplash-associated facet joint pain demonstrated abnormal psychological profiles secondary to pain which normalized with successful pain elimination. The impact of compensation on recovery remains controversial, while the concept that mild traumatic brain injury occurs in the absence of loss of consciousness has been largely refuted. The Quebec Task Force on Whiplash-Associated Disorders recently published a report in which the scientific literature was exhaustively reviewed and has made recommendations regarding the prevention and treatment of whiplash and its associated disorders. The Quebec Task Force highlighted the paucity of good scientific evidence; however, they still provided consensus treatment guidelines, which have not been validated. There continues to be a need for further research.

  18. Trend and Demographic Characteristics of Maxillofacial Fractures in Level I Trauma Center.

    Science.gov (United States)

    Emodi, Omri; Wolff, Amir; Srouji, Hanna; Bahouth, Hany; Noy, Dani; Abu El Naaj, Imad; Rachmiel, Adi

    2018-03-01

    The aim of this study was to analyze the pattern and treatment of craniomaxillofacial injuries in the northern part of Israel, within a Jewish majority and large Arab minority population. A 5-year retrospective study evaluated patients treated for craniomaxillofacial fractures. Fracture cause, type, site, and patient demographics were evaluated. Patient age ranged from 1 to 94 years with an average age of 36.7 years; 52% of the victims were Jews and 48% Arabs. There was male predilection in both sectors (78.3% vs 21.7%). The main site of injury was the zygomatic bone (33.5%) followed by nasal bone, orbital, mandible, frontal sinus, and maxillary fractures. The main etiology of injuries was falls (45.4%) with significantly more falls reported by females (52.1% vs 43.2% in males). Motor vehicle accidents caused injuries more frequent in males. Arabs experienced CMF fractures at a younger age compared to Jews (27.8 and 44.8 average age, respectively). In the elderly, the trend reversed where Jews were more prone to craniomaxillofacial fractures. Compared to their weight in the population, the Arab sector experiences more craniomaxillofacial injuries. The Jewish elderly population tends to reside in nursing homes where they are more susceptible to accidental falls, whereas young Arab males are more exposed to motor vehicle accidents and interpersonal violence. Falls were the main cause of injuries particularly in women. This may reflect the women's fear of reporting domestic violence. We believe that increased government investments in infrastructures and education will lower the incidence of craniomaxillofacial trauma and balance the gap between both sectors and sexes.

  19. Corrosive injuries of the upper gastrointestinal tract

    Directory of Open Access Journals (Sweden)

    Babu Lal Meena

    2017-01-01

    Full Text Available Corrosive injury of the upper gastrointestinal tract is a worldwide clinical problem, mostly occurring in children. Alkaline agents produce deeper injuries whereas acidic agents produce superficial injuries usually. Hoarseness, stridor, and respiratory distress indicate airway injury. Dysphagia, odynophagia, and drooling of saliva suggest esophageal injury whereas abdominal pain, nausea, and vomiting are indicative of stomach injury. X-rays should be done to rule out perforation. Endoscopy is usually recommended in the first 12–48 h although it is safe up to 96 h after caustic ingestion. Endoscopy should be performed with caution and gentle insufflation. Initial management includes getting intravenous access and replacement of fluids. Hyperemia and superficial ulcerations have excellent recovery while deeper injuries require total parenteral nutrition or feeding jejunostomy. Patients suspected of perforation should be subjected to laparotomy. Common complications after corrosive injury are esophageal stricture, gastric outlet obstruction, and development of esophageal and gastric carcinoma.

  20. Injuries and medical issues in softball.

    Science.gov (United States)

    Briskin, Susannah M

    2012-01-01

    Softball is enjoyed by millions of female and male athletes of all ages and competitive levels. Windmill pitchers are at risk for developing overuse injuries in the throwing arm. Improper mechanics and lack of pitch counts may increase the risk for developing a pitching-related injury. Softball-related overuse injuries include proximal biceps tendinitis, upper extremity stress fractures, and ulnar neuritis. Acute injuries commonly occur in the lower extremity and include both fractures and ligamentous injuries. Sliding injuries account for a significant number of these lower extremity injuries. The addition of breakaway bases and mandatory use of protective headgear by defensive players may decrease acute injuries commonly seen in softball. Off-season programs should stress proper throwing and sliding mechanics, core conditioning, and a lower extremity neuromuscular education program.

  1. Dental Injuries in a Sample of Portuguese Militaries - A Preliminary Research.

    Science.gov (United States)

    Azevedo, Luís; Martins, David; Veiga, Nélio; Fine, Peter; Correia, André

    2018-05-23

    Traumatic dental and maxillofacial injuries are very common and appear to affect approximately 20-30% of permanent dentition, with often serious psychological, economic, functional, and esthetic consequences. Militaries are a highest risk group for orofacial trauma, not only because they are constantly engaged in physical activity (which increase the risk of traumatic injuries) but also because they are exposed to many risk factors. The aim of this study was to evaluate the prevalence of orofacial injuries, militaries knowledge about first-aid procedures following a dental avulsion and the use of mouthguards in a sample of Portuguese militaries. An observational cross-sectional study was conducted for forces of the Infantry Regiment n°14 of Viseu, Portugal. The study involved 122 members of the armed forces who were asked to complete a questionnaire, which enquired about: the occurrence of dental trauma, the use of mouthguards and militaries knowledge with regard to first-aid management of dental avulsions. In our sample, 5.7% reported having experienced a dental trauma. This was further broken down to reveal that 2.5% had experienced an avulsion and 3.3% had a dental fracture. All respondents who reported having suffered dental trauma, reported that this was the only time that they had experienced dental trauma. Within this group, 71.4% visited a dentist, however only one (20%) visited the dentist during the same day that the trauma occurred. In addition, 21.3% mentioned that they had seen a dental trauma in at least one colleague during military trainings/operations. In the case of dental avulsion, the majority (54.9%) did not know how to act. The rate of mouthguard's use among militaries was very low (6.4%). The main reason reported for not using a mouthguard was thinking that it is not necessary (53.3%). Besides that, 31.1% did not know what a mouthguard was for. Prevention programs and promoting actions with this population are important reflections and

  2. Endovascular Management of Vascular Injury during Transsphenoidal Surgery

    OpenAIRE

    Çinar, C.; Bozkaya, H.; Parildar, M.; Oran, I.

    2013-01-01

    Vascular injury is an unusual and serious complication of transsphenoidal surgery. We aimed to define the role of angiography and endovascular treatment in patients with vascular injuries occurring during transsphenoidal surgery.

  3. Comparison of titanium mesh implants with PLA-hydroxyapatite coatings for maxillofacial cancer reconstruction

    Science.gov (United States)

    Tverdokhlebov, S. I.; Choinzonov, E. L.; Kolokolova, O. V.; Cherdyntseva, N. V.

    2016-08-01

    Since 2013 physics of TPU and oncologists from the TCRI with participation of the "ConMet" company (Moscow) and the "Sintel" company (Tomsk Special Economic Zone resident) have been working on the theme entitled "Development of the composite implants for reconstructive surgery of a craniofacial areas of the traumatological and oncological patients" supported with the Federal Program "R&D, part 1.3". The goal was to develop the maxillo-facial implants on the basis of the transformable titanium mesh with PLA & hydroxyapatite coating. According to the Contract No. 14.578.21.0031, the team of developers had to start supplying these advanced implants to the industrial partners up to 2017. This research was supported with the preliminary market researches by the ISPMS SB RAS and the TP "MF". The stages of preliminary market researches were: 1) research of the Worldwide CMF market; 2) forecasting the BRIC CMF market up to 2020; 3) the total Russian market (epidemiology) estimation as a sum of official calculations and statistics; 4) looking for the best foreign analogue prices, comparing their and our implant properties; 5) search for the best Russian analogues; 6) the investigation of the world patent database Espacenet for the last years, and finding the owners and applicants of patents of CMF osteosynthesis plates on the basis of titanium coated with PLA & hydroxyapatite; 7) comparison of the domestic implants, and making conclusions. Several variants of the meshes have got the equal quality with the best foreign and Russian implants. The closest analogues were titanium, polyethylene, PEEK composite meshes suited to the patient shape by the Synthes company in 2014, and the only hybrid titanium "Grey" implant with layers of gelatin, dextran, collagen, HAP & BMP-2 was found. This implant was produced by Russian institution, and it was mentioned in the report on clinical trials by L.A. Pavlova et al., 2014 [1]. There are no manufacturers of the coated implants in Russia

  4. Diffuse reflectance spectroscopy for optical nerve identification. Preliminary ex vivo results for feedback controlled oral and maxillofacial laser surgery

    Science.gov (United States)

    Stelzle, Florian; Zam, Azhar; Adler, Werner; Douplik, Alexandre; Tangermann-Gerk, Katja; Nkenke, Emeka; Neukam, Friedrich Wilhelm; Schmidt, Michael

    Objective: Laser surgery has many advantages. However, due to a lack of haptic feedback it is accompanied by the risk of iatrogenic nerve damage. The aim of this study was to evaluate the possibilities of optical nerve identification by diffuse reflectance spectroscopy to set the base for a feedback control system to enhance nerve preservation in oral and maxillofacial laser surgery. Materials and Methods: Diffuse reflectance spectra of nerve tissue, skin, mucosa, fat tissue, muscle, cartilage and bone (15120 spectra) of ex vivo pig heads were acquired in the wavelength range of 350-650 nm. Tissue differentiation was performed by principal components analysis (PCA) followed by linear discriminant analysis (LDA). Specificity and sensitivity were calculated by receiver operating characteristic (ROC) analysis and the area under curve (AUC). Results: Nerve tissue could correctly be identified and differed from skin, mucosa, fat tissue, muscle, cartilage and bone in more than 90% of the cases (AUC results) with a specificity of over 78% and a sensitivity of more than 86%. Conclusion: Nerve tissue can be identified by diffuse reflectance spectroscopy with high precision and reliability. The results may set the base for a feedback system to prevent iatrogenic nerve damage performing oral and maxillofacial laser surgery.

  5. Dental Infection and Pregnancy: the Lack of Treatment by the Dental Professional Evolving to a Complex Maxillofacial Infection.

    Science.gov (United States)

    Pereira, Rodrigo Dos Santos; Gomes-Ferreira, Pedro Henrique Silva; Bonardi, João Paulo; Silva, Jonathan Ribeiro da; Latini, Gustavo Lima; Hochuli-Vieira, Eduardo

    2017-11-01

    Infections of the maxillofacial complex caused by caries disease are common in dental practice. The professionals have to have technical knowledge to treat it at the onset of the condition and avoid the spread to deep anatomical spaces of face and neck, which can implicate in a risk of patients' life.In Brazil, current dental professionals usually denied oral surgical treatments in patients with some clinical conditions, not because of fear to resolve it but for lack of knowledge to treat it. An example of these conditionals is pregnancy. It is well known that during the pregnancy period, the patient can be treated in the correct period of gestation. Early diagnosis is crucial for effective therapy in serious infections. The treatment has to be crucial during pregnancy because of the potentially fatal situation that the disease can create to the pregnant woman and the fetus.The aim of this article is to demonstrate a case of dental caries in a pregnant patient, which was evaluated by other professionals and had the treatment denied, evolving to a serious maxillofacial infection.

  6. Registration area and accuracy when integrating laser-scanned and maxillofacial cone-beam computed tomography images.

    Science.gov (United States)

    Sun, LiJun; Hwang, Hyeon-Shik; Lee, Kyung-Min

    2018-03-01

    The purpose of this study was to examine changes in registration accuracy after including occlusal surface and incisal edge areas in addition to the buccal surface when integrating laser-scanned and maxillofacial cone-beam computed tomography (CBCT) dental images. CBCT scans and maxillary dental casts were obtained from 30 patients. Three methods were used to integrate the images: R1, only the buccal and labial surfaces were used; R2, the incisal edges of the anterior teeth and the buccal and distal marginal ridges of the second molars were used; and R3, labial surfaces, including incisal edges of anterior teeth, and buccal surfaces, including buccal and distal marginal ridges of the second molars, were used. Differences between the 2 images were evaluated by color-mapping methods and average surface distances by measuring the 3-dimensional Euclidean distances between the surface points on the 2 images. The R1 method showed more discrepancies between the laser-scanned and CBCT images than did the other methods. The R2 method did not show a significant difference in registration accuracy compared with the R3 method. The results of this study indicate that accuracy when integrating laser-scanned dental images into maxillofacial CBCT images can be increased by including occlusal surface and incisal edge areas as registration areas. Copyright © 2017 American Association of Orthodontists. Published by Elsevier Inc. All rights reserved.

  7. Sports injury of the pediatric musculoskeletal system.

    Science.gov (United States)

    Rosendahl, Karen; Strouse, Peter J

    2016-05-01

    Sports related injuries are common in children and adolescents, with a reported incidence of around one in ten children each year. Boys incur more and severer sports injuries than girls, and chance for injury is greater with contact or jumping sports. Sports injuries seen in children under 10-years of age are non-specific, including contusions, mild sprains, and extremity fractures, usually Salter fractures of the physes (growth plate) or plastic fractures. In the very young athlete, sports injury of the ligaments or muscle is rare as are spine or head injuries. With growth and adolescence, the intensity of sports involvement increases. Pre-pubertal children still have open physes that are prone to injury, both acute or due to stress from a repetitive activity. In addition to injury of the physes of the long bones, injuries to the physes of apophyses are common. Ligamentous injury is uncommon before physeal closure, but can occur. After the physes fuse, ligamentous injury is seen with patterns similar to adults. This review will include a description of sports related injuries seen in children and adolescents. We will concentrate on injuries that are specific for the growing skeleton, with a brief mention of those seen after fusion of the physes.

  8. Hamstring Injuries in Major and Minor League Baseball

    OpenAIRE

    Zachazewski, James; Silvers, Holly J.; Li, Bernard; Snyder-Mackler, Lynn; Insler, Stephanie; Ahmad, Christopher S.; Mandelbaum, Bert R.

    2016-01-01

    Objectives: The purpose of this study is to test the efficacy of a hamstring injury prevention program designed to address the high incidence of acute and chronic hamstring injuries and re-injuries that occur in the sport of professional baseball. Methods: This was a prospective cluster cohort study assessing the efficacy of an injury prevention intervention designed to address hamstring injury in rookie and professional baseball players participating in Minor and Major League Baseball (N = 2...

  9. Spinal injury

    Science.gov (United States)

    ... Dallas, TX: American Red Cross; 2016. Kaji AH, Newton EJ, Hockberger RS. Spinal injuries. In: Marx JA, ... member of Hi-Ethics and subscribes to the principles of the Health on the Net Foundation (www. ...

  10. Chilling injury

    African Journals Online (AJOL)

    ahar

    2013-12-18

    Dec 18, 2013 ... ROS avoidance genes play pivotal role in defense mechanism against chilling injury derived oxidative stress. ... Low temperature storage is a postharvest technology ..... crops is highly dependent on ethylene production and.

  11. Injury Statistics

    Science.gov (United States)

    ... Power Saws for 2001 05/15/2002 Nail Gun Related Injuries and Deaths Home Maintenance & Construction 05/ ... Information (FOIA) Inspector General No Fear Act Data USA.gov Report an Unsafe Product Contact Us: 800- ...

  12. Electrical injury

    Science.gov (United States)

    ... RS, Gausche-Hill M, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, PA: Elsevier; 2018:chap 134. Price LA, Loiacono LA. Electrical and lightning injury. In: Cameron JL, Cameron AM, eds. Current Surgical ...

  13. Ear Injury

    Science.gov (United States)

    ... of different injuries can affect the outer ear. Cauliflower ear (subperichondrial hematoma) A blunt blow to the ... to a deformed ear. This deformity, called a cauliflower ear, is common among wrestlers, boxers, and rugby ...

  14. Analysis of carotid artery deformation in different head and neck positions for maxillofacial catheter navigation in advanced oral cancer treatment

    Directory of Open Access Journals (Sweden)

    Ohya Takashi

    2012-09-01

    Full Text Available Abstract Background To improve the accuracy of catheter navigation, it is important to develop a method to predict shifts of carotid artery (CA bifurcations caused by intraoperative deformation. An important factor affecting the accuracy of electromagnetic maxillofacial catheter navigation systems is CA deformations. We aimed to assess CA deformation in different head and neck positions. Methods Using two sets of computed tomography angiography (CTA images of six patients, displacements of the skull (maxillofacial segments, C1–C4 cervical vertebrae, mandible (mandibular segment, and CA along with its branches were analyzed. Segmented rigid bones around CA were considered the main causes of CA deformation. After superimposition of maxillofacial segments, C1–C4 and mandible segments were superimposed separately for displacement measurements. Five bifurcation points (vA–vE were assessed after extracting the CA centerline. A new standardized coordinate system, regardless of patient-specific scanning positions, was employed. It was created using the principal axes of inertia of the maxillofacial bone segments of patients. Position and orientation parameters were transferred to this coordinate system. CA deformation in different head and neck positions was assessed. Results Absolute shifts in the center of gravity in the bone models for different segments were C1, 1.02 ± 0.9; C2, 2.18 ± 1.81; C3, 4.25 ± 3.85; C4, 5.90 ± 5.14; and mandible, 1.75 ± 2.76 mm. Shifts of CA bifurcations were vA, 5.52 ± 4.12; vB, 4.02 ± 3.27; vC, 4.39 ± 2.42; vD, 4.48 ± 1.88; and vE, 2.47 ± 1.32. Displacements, position changes, and orientation changes of C1–C4 segments as well as the displacements of all CA bifurcation points were similar in individual patients. Conclusions CA deformation was objectively proven as an important factor contributing to errors in maxillofacial navigation. Our study results suggest that

  15. Boxing injury epidemiology in the Great Britain team: a 5-year surveillance study of medically diagnosed injury incidence and outcome.

    Science.gov (United States)

    Loosemore, Michael; Lightfoot, Joseph; Palmer-Green, Deborah; Gatt, Ian; Bilzon, James; Beardsley, Chris

    2015-09-01

    There has been no comprehensive injury report of elite-level amateur boxers in competition and training. We reviewed injuries in training and competition in the Great Britain (GB) amateur boxing squad between 2005 and 2009. Longitudinal, prospective injury surveillance over 5 years of the GB boxing squad from 2005 to 2009. 66 boxers passed through the squad. The location, region affected, description, and the duration of each injury were recorded by the team doctor and team physiotherapist. We recorded whether the injury occurred during competition or training, and also whether it was a new or a recurrent injury. The injury rate during competition was calculated as the number of injuries per 1000 h. More injuries affected the hand than any other body location. This was the case overall, in training and competition individually, and for both new and recurrent injuries. More injuries occurred during training than during competition, and most injuries were new rather than recurrent. Total injury rate during competition was 828 per 1000 h and hand injury rate in competition was 302 injuries per 1000 h. Hand injury rate in competition was significantly higher than at the other locations. The incidence of concussion is comparatively low. Injury prevention should aim to protect the hands and wrists of elite amateur boxers. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  16. Ocular firework injuries at New Year's eve.

    Science.gov (United States)

    Sacu, Stefan; Ségur-Eltz, Nikolaus; Stenng, Karin; Zehetmayer, Martin

    2002-01-01

    To prospectively study mechanisms and injury characteristics of ocular firework burns. A prospective analysis of all patients with firework injuries attending the Department of Ophthalmology, University of Vienna, between 1994 and 2001. We looked for classes of fireworks and mechanisms of injuries. The number of diagnoses was established and their severity classified. During this period (8 years) we identified 116 eyes of 102 patients. 67/102 (66%) of all injuries were caused by class II and III fireworks. Patients ranged between 4 and 83 years. Ocular injuries occurred more frequently in males (69, 68%) and affected the right eye in 53 patients (52.5%). Ocular firework injuries to minors (under the age of 18 years) occurred in 48 (49%). The most common types of injury were skin and corneal erosions and abrasions (32/116, 28%). 11/116 eyes (10%) had severe injuries. 8 of 11 severe injuries (72%) occurred in minors (<18 years). 2 patients (1.7%) developed permanent blindness. In 32/116 patients (28%), the ocular trauma resulted in visual impairment, mainly due to corneal scars or retinal pathologies. In all patients, the severity index was 1.4 +/- 0.8. In minors the severity index was 1.6 +/- 1.0, in adults 1.2 +/- 0.5 (p = 0.013). Injuries in minors were significantly more severe than those in adults. Possible preventive measures include legislation, education of minors and eye protection. Copyright 2002 S. Karger AG, Basel

  17. [Injuries in France: trends and risk factors].

    Science.gov (United States)

    Richard, J-B; Thélot, B; Beck, F

    2013-06-01

    Whatever the type of injury considered, prevention requires an improvement in health services' awareness of risk factors. The Health Barometer is a general population survey conducted in France since 1992 to contribute to surveillance in this field. The survey's statistical power and the numerous health topics included in the questionnaire provide accurate information for healthcare professionals and decision-makers. The Health Barometer 2010 was a nationwide telephone survey of 9110 persons representative of the 15-85-year-old population. One part of the questionnaire detailed injuries which had occurred during the past year. The numerous variables recorded enabled application of logistic regression models to explore risk factors related to different types of injury by age group. The findings were compared with the Health Barometer 2005 data to search for temporal trends of injury prevalence. The data analysis showed that 10.3% of the 15-85-year-olds reported an injury during the past year. This rate was higher than recorded in 2005; the increase was mainly due to domestic accidents and injuries occurring during recreational activities. Both type of injury and risk factors exhibited age-related variability. Domestic accidents and injuries occurring during recreational activities predominated in the older population and were associated with physical or mental health problems (chronic disease, diability, sleep disorders). For younger people, injuries were related to cannabis use, drunkedness, and insufficient sleep. Risk factors were also depended on type of injury: occupational accident-related injuries were linked with social disadvantage (manual worker population) whereas sports injuries were more common in the socially advantaged population. This survey confirms established knowledge and highlights, at different stages of life, new risk factors that contribute to injuries in France. These findings should be helpful for the development of adapted injury

  18. Penetrating eye injuries from writing instruments

    Directory of Open Access Journals (Sweden)

    Kelly SP

    2011-12-01

    Full Text Available Simon P Kelly, Graham MB ReevesThe Royal Bolton Hospital, Bolton, UKPurpose: To consider the potential for ocular injury from writing implements by presenting four such cases, and to consider the incidence of such eye injuries from analysis of a national trauma database.Methods: The Home and Leisure Accident Surveillance System was searched for records of eye injuries from writing instruments to provide UK estimates of such injuries. Four patients with ocular penetrating injury from pens or pencils (especially when caused by children, and examined by the authors, are described which illustrate mechanisms of injury.Results: It is estimated that around 748 ocular pen injuries and 892 ocular pencil injuries of undetermined severity occurred annually in the UK during the database surveillance period 2000–2002. No eye injuries from swords, including toy swords and fencing foils, were reported.Conclusion: Ocular perforation sometimes occur from writing instruments that are thrown in the community, especially by children. Implications for policy and prevention are discussed. Non-specialists should have a low threshold for referring patients with eye injuries if suspicious of ocular penetration, even where caused by everyday objects, such as writing instruments.Keywords: eye injury, eye, children, mechanism, writing instruments, prevention

  19. Injury timing alters metabolic, inflammatory and functional outcomes following repeated mild traumatic brain injury.

    Science.gov (United States)

    Weil, Zachary M; Gaier, Kristopher R; Karelina, Kate

    2014-10-01

    Repeated head injuries are a major public health concern both for athletes, and members of the police and armed forces. There is ample experimental and clinical evidence that there is a period of enhanced vulnerability to subsequent injury following head trauma. Injuries that occur close together in time produce greater cognitive, histological, and behavioral impairments than do injuries separated by a longer period. Traumatic brain injuries alter cerebral glucose metabolism and the resolution of altered glucose metabolism may signal the end of the period of greater vulnerability. Here, we injured mice either once or twice separated by three or 20days. Repeated injuries that were separated by three days were associated with greater axonal degeneration, enhanced inflammatory responses, and poorer performance in a spatial learning and memory task. A single injury induced a transient but marked increase in local cerebral glucose utilization in the injured hippocampus and sensorimotor cortex, whereas a second injury, three days after the first, failed to induce an increase in glucose utilization at the same time point. In contrast, when the second injury occurred substantially later (20days after the first injury), an increase in glucose utilization occurred that paralleled the increase observed following a single injury. The increased glucose utilization observed after a single injury appears to be an adaptive component of recovery, while mice with 2 injuries separated by three days were not able to mount this response, thus this second injury may have produced a significant energetic crisis such that energetic demands outstripped the ability of the damaged cells to utilize energy. These data strongly reinforce the idea that too rapid return to activity after a traumatic brain injury can induce permanent damage and disability, and that monitoring cerebral energy utilization may be a tool to determine when it is safe to return to the activity that caused the initial

  20. Telemark skiing injuries: characteristics and risk factors.

    Science.gov (United States)

    Federiuk, C S; Mann, N C

    1999-01-01

    To determine the types of injuries associated with telemark skiing and the effects of ability level, equipment, and terrain. A survey was mailed to a sample of North American telemark skiers. Completed surveys were returned by 548 telemarkers (response rate = 74.5%). The mean age was 42.7 (+/- 9.3) years, and 69% were male. A total of 439 injury events resulted in 494 body injuries, reported by 285 skiers (52%). Lower-extremity injuries (n = 231) were more frequent than upper-extremity injuries (n = 187). Knee injuries were most common with 128 cases, followed by 80 thumb, 66 shoulder, and 44 ankle injuries. Surgery was required in 39 cases. Skiers suffering thumb injuries with sequela lasting greater than 3 months were 10.1 times less likely to have sought medical attention than skiers with other long-term injuries (p boot type and overall knee or ankle injury, but risk of severe ankle injury was increased in leather boots compared to plastic (OR = 8.0, CI = 1.05, 60.59). Release bindings were used by 27.9% of all skiers but were in use in only 18.7% of injury events, suggesting that release plates have a protective effect against injury (OR = 0.59, p knee, thumb, shoulder, and ankle are most frequently injured telemark skiing. Injuries are more likely to occur at lift-served areas than in the backcountry. Thumb injuries are often ignored and may result in long-term sequela. Ankle injuries appear more severe in leather boots. Release bindings appear protective against injury, but they often do not release.