[Fracture of the mandible in osteogenesis imperfecta].

This article is a report on a fracture of the lower jaw in osteogenesis imperfecta. In this disease, fractures of the facial part of the skull are very rare, in contrast to fractures of the extremities; they may possibly occur in adults only if the bone is weakened by additional processes--in the present case, by an odontogenous cyst. In the case described here, successful treatment of the fracture could be effected via intraoral approach by means of a functionally stable osteosynthesis performed with plates.