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Full dent. sci ; 6(21): 18-24, dez. 2014. ilus, tab
Article in Portuguese | LILACS, BBO | ID: lil-750177

ABSTRACT

O Cisto àsseo Traum tico (COS) ‚ uma lesÆo rara, que tem alta incidˆncia na mand¡bula, principalmente na segunda d‚cada de vida. A descoberta do COS ocorre durante os exames de rotina, sendo assintom tica. A etiologia do COS geralmente encontra-se associada a algum tipo de trauma local, sem rela‡Æo causal com gˆnero ou ra‡a. O tratamento desta lesÆo ocorre na grande maioria dos relatos por meio de explora‡Æo cir£rgica, revelando-se eficaz e seguro. O objetivo deste estudo foi avaliar retrospectivamente os casos de COS, tratados entre janeiro de 1999 a julho de 2011. Foram avaliados 10.543 prontu rios, onde 12 pacientes apresentaram COS. Todos os casos ocorreram em pacientes que estavam na segunda d‚cada de vida, com m‚dia de idade de 15,2 anos. A mand¡bula estava envolvida em 100% dos casos, com elevada incidˆncia na s¡nfise (55%), seguido pelo corpo (36%) e ramo da mand¡bula (9%). Seis pacientes relataram a hist¢ria pregressa de trauma (2-9 anos) antes do diagn¢stico da lesÆo. Todos os pacientes foram submetidos … bi¢psia incisional associada … explora‡Æo cir£rgica da cavidade c¡stica, o que representou o tratamento definitivo. O tempo m‚dio de proserva‡Æo foi de 35,7 meses. No per¡odo de acompanhamento (7 a 85 meses), nÆo foi observada recidiva da lesÆo. O tratamento por meio de cirurgia explorat¢ria, realizada no momento da bi¢psia, foi eficaz em todos os casos deste estudo


The simple bone cyst (SBC) is a rare asymptomatic injury diagnosed during routine examinations. The etiology of SBC is usually associated with a local trauma, with no relation with gender or race. The treatment through surgical exploration has proved to be effective and safe. The goal of this study was to evaluate retrospectively the cases of SBC, treated between January/1999 to July/2011. The study evaluated 10.543 clinical handbooks, in which 12 patients presented SBC. In all cases patients were in the second decade of life, with mean age of 15.2 years. Mandible was involved in 100% of the cases, with high incidence on the symphisis (55%), followed by body (36%), and mandibular ramus (9%). Six patients reported trauma (2-9 years) prior to the diagnosis. All patients were submitted to an incisional biopsy associated to a surgical exploration of the cystic cavity, that represented the definitive treatment. The average time of proservation was 35.7 months. In the follow-up period (7 to 85 months) was not observed any recurrence. The treatment through exploratory surgery, carried through the moment of the biopsy, was effective in all cases


Subject(s)
Humans , Male , Female , Adolescent , Biopsy , Bone Cysts/pathology , Mandible/surgery , Brazil/epidemiology , Histological Techniques , Retrospective Studies , Radiography, Dental/instrumentation
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