Neste trabalho apresentamos um trabalho das possíveis relações imaginológicas do espaço pericoronário com a presença de cistos dentígeros relacionados com terceiros molares inferiores. As radiografias panorâmicas em 2 grupos: dentes não irrompidos e dentes parcialmente irrompidos, sendo então relacionados a gênero, idade, tecido inflamatório e de cistos dentígeros. Estes dados foram obtidos a partir de prontuários de pacientes (gênero e idade) e por meio de traçados e mensuração com o auxílio de instrumentos, com base em imagens obtidas em radiografias panorâmicas provenientes de prontuários arquivados, que já eram acompanhados pelos os resultados do exame histopatológico. As amostras nos revelaram que não há relação entre a largura do capuz pericoronário e a presença de cistos dentígeros,pois foram encontrados casos de cistos desta natureza com larguras a partir de 1,8 mm. Foram levadas em consideração evidências de que em larguras maiores teríamos uma maior incidência de lesões como esta, porém os resultados demonstraram não ser possível estabelecer um diagnóstico preciso com base apenas em informações de natureza dimensional. Com base nos resultados obtidos comprovamos que o exame histopatológico, complementando o exame imaginológico, é o único meio confiável para determinar a presença de cistos dentígeros / The aim of this study was to verify the relationship between the radiographically measured of the pericoronal space in order to contribute to the diagnosis of dentigerous cyst related to third molars inferior.The panoramic radiography were reparted in two different groups: unerupted teeth and partially erupted teeth and there relations with gender, age, inflammatory tissue and dentigerous cyst. This data were obtained by measuring the pericoronal space with precision instruments on files of panoramic radiographies that includes results from hystopatological exams. The samples showed there was no relation between the diameter of pericoronal sack and detigerous cysts. There was found data of dentigerous cysts cases from 1,8mm of diameter. There were evidences that as large as the diameter the incidence of dentigerous cysts were higher. But there were no possibilities to have a definitive diagnosis only based on dimensional informations. At the end of study, the results corroborate that the hystopatological exam with imaging exams is the only way to determinate definitely the the nature of disease

Neste trabalho apresentamos um trabalho das possíveis relações imaginológicas do espaço pericoronário com a presença de cistos dentígeros relacionados com terceiros molares inferiores. As radiografias panorâmicas em 2 grupos: dentes não irrompidos e dentes parcialmente irrompidos, sendo então relacionados a gênero, idade, tecido inflamatório e de cistos dentígeros. Estes dados foram obtidos a partir de prontuários de pacientes (gênero e idade) e por meio de traçados e mensuração com o auxílio de instrumentos, com base em imagens obtidas em radiografias panorâmicas provenientes de prontuários arquivados, que já eram acompanhados pelos os resultados do exame histopatológico. As amostras nos revelaram que não há relação entre a largura do capuz pericoronário e a presença de cistos dentígeros,pois foram encontrados casos de cistos desta natureza com larguras a partir de 1,8 mm. Foram levadas em consideração evidências de que em larguras maiores teríamos uma maior incidência de lesões como esta, porém os resultados demonstraram não ser possível estabelecer um diagnóstico preciso com base apenas em informações de natureza dimensional. Com base nos resultados obtidos comprovamos que o exame histopatológico, complementando o exame imaginológico, é o único meio confiável para determinar a presença de cistos dentígeros / The aim of this study was to verify the relationship between the radiographically measured of the pericoronal space in order to contribute to the diagnosis of dentigerous cyst related to third molars inferior.The panoramic radiography were reparted in two different groups: unerupted teeth and partially erupted teeth and there relations with gender, age, inflammatory tissue and dentigerous cyst. This data were obtained by measuring the pericoronal space with precision instruments on files of panoramic radiographies that includes results from hystopatological exams. The samples showed there was no relation between the diameter of pericoronal sack and detigerous cysts. There was found data of dentigerous cysts cases from 1,8mm of diameter. There were evidences that as large as the diameter the incidence of dentigerous cysts were higher. But there were no possibilities to have a definitive diagnosis only based on dimensional informations. At the end of study, the results corroborate that the hystopatological exam with imaging exams is the only way to determinate definitely the the nature of disease

Background: Pericoronitis is an oral condition characterized by inflammation caused by infection in the gingiva surrounding a partially erupted tooth. Terracortril® with Polymyxin B is an ointment with hydrocortisone, oxytetracycline and Polymyxin B that has been observed to occur in treatment of pericoronitis in general dental care, despite recommendations against local antibiotic treatment in dental care. Aim: The aim was to explore to what extent Terracortril® with Polymyxin B is used in the treatment of pericoronitis in general dental care, and to ascertain if the general dentist’s professional experience and degree of difficulty of the pericoronitis affects the choice of treatment. Methods: A survey was sent to general dentists in the Region Västerbotten, consisting of three patient cases with different severity of pericoronitis asking for acute stage treatment. Background questions about Terracortril® with Polymyxin B were included and working years were inquired for.   Results: 81.4% used Terracortril® with Polymyxin B. Usage was associated with professional experience, where dentists with 0-1 and ≥16 working years used Terracortril® with Polymyxin B more frequently than dentists with 2-5 and 6-15 working years.  The severity of symptoms of pericoronitis was decisive for if the dentist used Terracortril® with Polymyxin B, where usage increased with the severity of pericoronitis. Conclusion: Terracortril® with Polymyxin B is frequently used in treatment of pericoronitis. Both the professional experience and the degree of difficulty of the pericoronitis affect the usage. Terracortril® with Polymyxin B should presumably not be used in the treatment of pericoronitis until supporting evidence is available.