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[Fractures of the mandible--an analysis of the etiology and localization].

A retrospective analysis of fractures of the mandible in 993 patients treated in the Department of Oral Surgery, Odense University Hospital, during the period 1978-1987 is presented. The investigation is compared with a previous analysis from the period 1964-1973. There is a marked increase in the total number of fractures as well as an increase in the number of cases of violence involving fractures of the mandible. Jaw fractures caused by sport accidents are rare, but it is surprising that horse riding is the sport that is causing most mandibular fractures. The present investigation demonstrates that fractures of the condyles are the prevailing type of fractures, followed by fractures of the mandible body. Presence or lack of teeth seems to have no or little importance with reference to localization of the fractures.