Intraoral epidermoid cyst with extensive elastofibromatous changes: an unusual finding.

INTRODUCTION: Epidermoid cysts (ECs) are rare and occur in the head and neck regions with an incidence from 1.6 to 7% of all cysts. In the oral cavity, approximately 80 ECs have been reported, representing less than 0.01% of all cysts. CASE REPORT: We report a case of a 26-year-old man who developed a large EC in the midline floor of the mouth causing nodular swelling in the submental region and speech and swallowing difficulties. The lesion was surgically excised by intraoral approach and microscopically revealed an EC associated with extensive elastofibromatous changes in the cystic capsule. CONCLUSION: Oral EC with extensive elastofibromatous changes is a finding extremely rare. The meaning of this finding is unknown, but a traumatic origin or deposit disorder of elastic fibers is suggested. To the best of our knowledge, intraoral EC with elastofibromatous changes has not been reported to date.

Conhecimento do cirurgião dentista sobre filmes radiográficos interferindo na otimização do processamento radiográfico / Knowledge of the clinical dentist about radiographic film interfering in processing optimization / Conocimiento del dentista clínico sobre la interferencia de la película radiográfica en la optimización del procesamiento

Objetivo: O objetivo deste trabalho foi avaliar o conhecimento sobre filmes radiográficos na odontologia e suas características, para definir o que melhor se enquadra nos seus procedimentos. Metodologia: Foi elaborado um questionário sobre filmes radiográficos quanto à seleção na aquisição, sensibilidade dos filmes e quais estão sendo utilizados. O questionário foi respondido por 50 cirurgiões-dentistas escolhidos aleatoriamente, excluindo-se os radiologistas. Resultados: Foi observado que 35 (70%) dos participantes disseram saber o que é sensibilidade e 29 (58%) afirmaram que compram o filme de acordo com a sensibilidade. Ao verificar o conhecimento real do assunto, menos da metade das questões foram respondidas corretamente. Outro fato importante, é que embora 35 (70%) dos participantes soubessem o que é sensibilidade, somente 16 (32%) deles estão usando os filmes mais sensíveis existentes no mercado. Observou-se também que 17 (34%) dos profissionais participantes têm entre vinte e trinta anos, sendo que 27 (54%) se formaram a partir do ano 2000. Conclusão: Concluiu-se que, apesar dos profissionais afirmarem saber o que é sensibilidade e escolher o filme por este motivo, na pratica isso não acontece. Os resultados destacam que é necessário um esclarecimento maior dos profissionais ao que se refere ao emprego das radiações(AU)

Objective: The aim of this study was to investigate the knowledge of the dentist, about radiographic films in dentistry, in order to define what best fits into your procedures and know how to choose what should be used to bring benefit to the patient. Methods: A questionnaire containing questions about acquisition, knowledge and sensitivity of these films was answered by 50 dentists randomly selected, excluding radiologists. Results: It was observed that 35 (70%) of participants say they know what's sensitivity and 29 (58%) say they buy the film according to sensitivity. To verify the actual knowledge of the subject, less than half of the questions were answered correctly. Another important fact is that 35 (70%) of the participants know what sensitivity is, only 16 (32%) of them are using the most sensitive films. It was also observed that 17 (34%) of the professional participants have between twenty and thirty years, and 27 (54%) were formed after 2000. Conclusion: It is concluded that despite the professional claim to know the film's sensitivity and choose the film for this reason, in practice it doesn't happen. The results highlight that further clarification of professionals with regard to employment of radiation is necessary(AU)

Objetivo: El objetivo de este trabajo fue evaluar el conocimiento sobre películas radiográficas en la Odontología y sus características, para definir lo que mejor se encuadra en sus procedimientos. Metodología: Se ha elaborado un cuestionario sobre películas radiográficas en cuanto a la selección en la adquisición, sensibilidad de las películas y cuáles están siendo utilizados. El cuestionario fue respondido por 50 odontólogos elegidos aleatoriamente, excluyendo a los radiólogos. Resultados: Se observó que 35 (70%) de los participantes dijeron saber qué es sensibilidad y 29 (58%) afirmaron que compran la película de acuerdo con la sensibilidad. Al verificar el conocimiento real del asunto, menos de la mitad de las preguntas fueron respondidas correctamente. Otro hecho importante, es que aunque 35 (70%) de los participantes supieran lo que es sensibilidad, sólo 16 (32%) de ellos están usando las películas más sensibles existentes en el mercado. Se observó también que 17 (34%) de los profesionales participantes tienen entre veinte y treinta años, siendo que 27 (54%) se formaron a partir del año 2000. Conclusión: Se concluyó que, a pesar de que los profesionales afirman saber lo que es la sensibilidad y elegir la película por este motivo, en la práctica no sucede. Los resultados señalan que es necesario un mayor aclaramiento de los profesionales en lo que se refiere al empleo de las radiaciones(AU)

One-year clinical evaluation of the retention of resin and glass ionomer sealants on permanent first molars in children

Abstract Aim : To compare the retention of glass ionomer cement (GIC) used as fissure sealant with a resinbased sealant. Methods: Six- to nine-year-old children (n=96) with all permanent first molars in occlusion were examined and assigned to two groups: GIC sealant or resin-based sealant. The sealants were applied according to the manufacturers' recommendations. The assessment of sealant retention was performed at two-month interval sessions (n=6), when each sample was scored according to the following criteria: complete retention, partial retention or complete loss. The visual and tactile examinations were carried out with a WHO probe, mouth mirror, air syringe and artificial light. The data were submitted to descriptive statistics and survival analysis. Results: A total of 384 occlusal surfaces were analyzed. Independent of the tooth and evaluation time, slightly better results were achieved by the resin-based sealant, but the difference was not statistically significant. Conclusions: GIC and resin-based sealants achieved similar results with regards to retention during a one-year follow-up period.