Antonio Azoubel Antunes

Odontogenic tumors: clinical and pathology study of 238 cases

UNLABELLED Odontogenic tumors are neoplasms that develops exclusively in the gnathic bones; they originate from odontogenic tissues, by epithelial or mesenchymal proliferation, or both. AIM To evaluate the incidence of odontogenic tumors in a specific institution, and to compare these findings with other studies in the literature. STUDY FORMAT: A cross-sectional cohort retrospective study. MATERIAL AND METHOD The sample was obtained from the files of patients with odontogenic tumors diagnosed between January 1992 and March 2007 (15 years). Cases in which the diagnosis could be adapted to the new World Health Organization (WHO) of 2005 were included. Data such as gender, age, anatomical site, histological type and symptomatology were analyzed. RESULTS Odontogenic tumors were 4.76% of all biopsied lesions within the studied period. The mean age was 30.7 years; 57% of the patients were male. The keratocystic odontogenic tumor was the most prevalent histological type (30%), followed by the ameloblastoma (23,7%). The rate of asymptomatic cases was 75.7%. CONCLUSION Odontogenic tumors occurred more frequently in females, in the second and third decades of life, and more commonly in the mandible; most cases were asymptomatic.

Tumores odontogênicos: estudo clínico-patológico de 238 casos

Os tumores odontogenicos sao neoplasias que se desenvolvem exclusivamente nos ossos gnaticos, originando-se dos tecidos odontogenicos por proliferacao de tecido epitelial, mesenquimal ou ambos. OBJETIVO: Avaliar a incidencia de tumores odontogenicos em determinada instituicao e comparar com outros estudos da literatura mundial. FORMA DE ESTUDO: Estudo de coorte transversal. MATERIAL E METODO: O material do estudo foi levantado a partir dos registros de pacientes com tumores odontogenicos, no periodo de janeiro de 1992 a marco de 2007 (15 anos). Foram incluidos os casos de pacientes que se enquadravam na Classificacao Histologica da Organizacao Mundial de Saude (OMS) de 2005. Foram analisados os indicadores genero, faixa etaria, localizacao anatomica, tipo histologico e presenca de sintomatologia. RESULTADOS: Os tumores odontogenicos constituiram 4,76% dentre todas as lesoes biopsiadas dentro do periodo estudado. A idade media dos pacientes foi de 30,7 anos, 57% dos pacientes eram do genero masculino. O tumor odontogenico ceratocistico foi o tipo histologico mais prevalente (30%), seguido do ameloblastoma (23,7%). Quanto a presenca de sintomatologia, 75,7% dos casos apresentaram-se assintomaticos. CONCLUSAO: Os tumores odontogenicos parecem ter discreta predilecao pelo genero feminino, segunda e terceira decadas de vida, sendo mais frequentes na mandibula e, na maioria dos casos apresentam-se assintomaticos.

Use of zoledronic acid in the treatment of Gorham's disease

Gorhams disease (Gorham-Stout syndrome) is a rare condition of unknown etiology involving a localized endothelial proliferation of lymph vessels resulting in destruction with bone resorption. The syndrome is rarely seen in the facial skeleton and has a large variety of prognoses and treatments. A case of this syndrome in a 9-year-old boy is presented. The clinical aspects are described, together with the treatment involving zoledronic acid. Other treatments described in the literature are reviewed. The authors believe that this report is one of the first cases in which a child afflicted in the first decade of life survives.

Eficácia da laserterapia nas disfunções têmporo-mandibulares: estudo controle

UNLABELLED Temporomandibular dysfunction is characterized by the presence of painful joint/muscular symptoms muscle in the face. The main justification for the use of lasers in laser therapy dysfunction is its analgesic effect, which was observed in most studies in the literature. AIM We evaluated the effectiveness of laser therapy in the treatment of temporomandibular disorders. METHODS 50 volunteers with temporomandibular disorders were divided into two groups (control and experimental) had amplitudes of movements of mouth opening, right and left laterality recorded before and after laser application. Was also recorded, the score the individual gave to pain by visual analog scale and, through physical examination, the pain points. We used the AsGaAl laser with a 40mW power, with 80J/cm(2) for 16 seconds at four selected points for just one session with reassessment after a week. STUDY DESIGN Clinical. RESULTS It was noted that laser therapy increased the mean amplitude of mandibular movements (p = 0.0317) and decreased significantly (43.6%) the pain intensity measured by the visual analog scale. CONCLUSIONS The laser decreases the painful symptoms of the patient after application through its analgesic and/or a placebo effect.