Abstract
Based on the analysis of forensic medical examinations conducted for jaw fractures, it was found that they occurred more often due to domestic trauma (fight) and sharply in a fall from a height. The most typical fracture lines are the neck of the articular process, the angle of the mandible, the mental foramen, and the midline. In the case of impact with a blunt, hard object in the region of the mandible, the mechanism of displacement of fractures under the influence of the traction of the masticatory muscles is characteristic. In all cases, the upper jaw fractures were open as well as unilateral and bilateral. In unilateral upper jaw fractures, the fracture line ran sagittally along the palatal suture. The displacement of bone fragments in the upper jaw fractures depends on the force and direction of the impact; on the weight of the fragments themselves; on the strength of the masticatory (wing) muscles traction.
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