Study of the causes of facial fractures in a reference center in Rio de Janeiro, Brazil from 2003-2012.

OBJECTIVE: This study describes the facial fractures of patients at a reference center in oral and maxillofacial surgery of a Public University Hospital in the city of Rio de Janeiro, from January 2003 to December 2012. METHODS: The data were collected from medical records and included the fractured bones, etiology, gender, and age of the patients. A total of 202 cases were identified, and 159 were included in the study (129 men and 30 women). RESULTS: The mandible was the most commonly injured bone (90 cases, 73 men and 17 women) with a mean age of 33.7 years old (±15.2), and traffic accidents (75 cases) were shown to be the major cause. CONCLUSION: In the city of Rio de Janeiro, young men in their fourth decade of life are prone to trauma to their facial bones, especially the mandible, and they are most commonly caused by traffic accidents.

An unusual osteoma in the mandibular condyle and the successful replacement of the temporomandibular joint with a custom-made prosthesis: a case report.

BACKGROUND: An osteoma is a benign tumor of bone with unknown etiology and is considered rare, mostly restricted to the craniofacial skeleton. CASE PRESENTATION: This case report describes an uncommon condylar osteoma in a 67 years old white female patient with laterognathism to the left side, limited mouth opening, aesthetic change and pain associated with the right temporomandibular joint (TMJ). The histopathological examination confirmed osteoma. The lesion was surgically excised and immediate reconstruction was carried out using a custom-made total TMJ prosthesis. The patient has been in follow-up for 2 years, with no symptoms. CONCLUSIONS: Unilateral total TMJ prosthesis can be considered to replacement of TMJ after osteoma excision with resection of the condyle.

Keratocystic odontogenic tumor.

OBJECTIVE: to evaluate the frequency of keratocystic odontogenic tumor (KOT) in the Oral Surgery Service (OSS) of the University Hospital Clementino Fraga Filho of the Federal University of Rio de Janeiro (HUCFF / UFRJ), with respect to recurrence rate, gender, age of recurrence and location of the injury Methods: clinical records were reviewed and histopathological reports of KOT patients of the HUCFF/UFRJ between 2002 and 2012. Patients diagnosed with KOT were divided into two groups for the occurrence of relapse: positive (n=6) and negative (n=19) Results: regarding the location, there was a predilection for the mandible. In the average age of patients in the positive group was 40.5 and the negative group, 35.53. In the distribution by gender, positive group showed equal distribution, different from that observed in the negative group, which showed a predilection for males Conclusion: KOT was the second most frequent injury in our patients, recurrence was lower among males and had the jaw as most affected location.

Cisto odontogênico calcificante na maxila posterior: um relato de caso atípico com acompanhamento de dois anos / Calcifying odontogenic cyst in the posterior maxilla: an atypical case report with two-year follow-up

Introdução: o Cisto Odontogênico Calcificante (COC) é um cisto odontogênico raro e indolor, que causa destruição óssea medular e expansão óssea cortical, sendo relatado pela primeira vez por Gorlin, em 1962. Objetivo: neste artigo relatamos um caso de COC na região mais rara de sua aparição, que é a região posterior da maxila em um jovem de apenas 15 anos. Relato de Caso: o paciente foi internado com um inchaço extra-oral, que cresceu lentamente durante os 8 meses anteriores; na cavidade bucal, também foi observado edema na região dos dentes 26, 27 e 28 e também acentuada mobilidade; radiograficamente, havia área radiolúcida unilocular com algumas áreas radiopacas (como uma casca alaranjada). Os achados histológicos observados incluem proliferação de células fantasmas e células basais colunares, semelhantes a ameloblastos e células com camadas superficiais frouxas. Conclusão: o paciente foi submetido à enucleação com curetagem de cisto como tratamento; devido a altas taxas de recorrência, o paciente teve um acompanhamento a cada três meses por um período de 2 anos, sem sinais de recidiva.

Introduction: Calcifying Odontogenic Cyst (COC) is an uncommon and painless odontogenic cyst, that causes bone marrow destruction and cortical bone expansion. It was first reported by Gorlin, in 1962. Objective: in this article, we report a case of COC in the rarest region of its appearance, which is the posterior region of the maxilla in a young man who is only 15 years old. Case Report: the patient was admitted with an extraoral swelling that grew slowly during the previous 8 months; in the oral cavity, edema was also observed in the region of the teeth 26, 27 and 28, and also marked mobility; radiographically, there was unilocular radiolucent area with some radiopaque areas (like an orange skin). The histological findings observed include proliferation of phantom cells, and columnar basal cells, similar to Ameloblasts and cells with loose superficial layers. Conclusion: the patient underwent enucleation with cyst curettage as a treatment; due to high rates of recurrence the patient had a follow up every three months for a period of 2 years without signs of relapse.

Recidiva do Tumor Odontogênico Ceratocístico: Análise retrospectiva de 10 anos / Keraticyst Odontogenic Tumor Recurrence: Retrospective Reserch of 10 Years

O Ceratocisto odontogênico é um tumor que se origina dos remanescentes da lâmina dentária. O tratamento deve ser baseado nas características da lesão e para que seja efetivo, a associação de técnicas é indicada. O objetivo deste estudo foi comparar os métodos de tratamento utilizados com o índice de recidiva. Foi feita uma análise retrospectiva de 1998 a 2008 dos casos diagnosticados como tumor odontogênico ceratocístico pelo Serviço de Cirurgia Oral da Universidade Federal do Rio de Janeiro (HUCFF/UFRJ). No período de 10 anos foram tratados 17 pacientes. Destes, 10 (58,8%) recidivaram após o tratamento primário. A enucleação quanto utilizada sozinha foi responsável por 71,42% das recidivas. Na segunda cirurgia o procedimento mais utilizado foi a enucleação seguida da aplicação da solução de Carnoy. Nestes casos o índice de recidiva foi de 57,14%. Cinco pacientes precisaram ser submetidos a uma terceira intervenção. As recidivas surgiram de 1 a 2.5 anos, média 2,2 anos. A associação de métodos é importante para a redução do número de recidivas. Apesar da amostra pequena, a solução de Carnoy foi o método mais utilizado e demonstrou ser eficaz na diminuição do índice de recidiva no tratamento desta lesão.

Odontogenic keratocyst is a tumor whose origins are remnants of dental laminas. The treatment is based on the characteristics of the lesion. To reduce the recurrence, many techniques should be associated. The goal of this retrospective study was to evaluate different ways of odontogenic keratocyst tumor treatment and rate them against reappearance of the lesion. A retrospective review from 1998 to 2008 of the patients with odontogenic keratocyst treated at Oral Surgery Department of University Hospital of Federal University of Rio de Janeiro (HUCFF/UFRJ) was performed. There were 17 odontogenic keratocyst tumor treated in the period of 10 years. Among the cases, 10 relapsed (58.8%) after primary treatment. Enucleation alone were responsible for 71.42% of the recurrence. In the second surgery the most used procedure was the enucleation followed use of Carnoy's Solution. There were 57.14% of recurrence with this technique. Five patients needed a third intervention. The reverting occurred between 1 to 2.5 years, range 2.2 . It is important to associate methods to decrease reappearance of odontogenic keratocyst tumor. In this study besides the small sample Carnoy's solution was the most used method and showed to be an effective one to bring down the reoccurrence of this lesion.

Hemihipertrofia do tipo complexo / Complex hemihypertrophy: presentation of clinical case and literature review

Os autores tecem considerações a respeito da hemihipertrofia do tipo complexo, juntamente com a descrição de um caso clínico