Horizontal fracture of alveolar bone between lower right first molar and left second molar: Report of a case.

Although the fracture of an alveolar bone occurs most frequently singly or in ccmbination with other fractures of the maxilla and mandible, we experienced a rare case of the mandible alveolar bone fracture.A 45-year-old man was admitted to the hospital because of the low lip injury and limitation of jaw motion.Examination showed that the oral cavity was detached from the mandible body and the low alveolar bone from the right first molar to left second molar had a horizontal fracture.The alveolar segment was fixed by circumferential wiring of the mandible and intact teeth in the line of the alveolar bone fracture have been maintained.