Mandibular fracture after third molar removal

Abstract

Purpose: Mandibular fracture after impacted lower third molar removal is a rare, but major, complication. The factors leading to a mandibular fracture secondary to third molar removal are analyzed retrospectively. Patients and Methods: Six patients who suffered from a mandibular fracture as a complication after third molar removal were examined clinically and radiographically. Results: All fractures occurred an average of 14 days postoperatively. The patients were 42 to 50 years old and were all fully dentulous. All grades of tooth impaction were included. Conclusions: The major risk factor for this complication seems to be advanced age in combination with a full dentition. The degree of tooth impaction is less important. Preexisting bone lesions weaken the mandible and further predispose to a fracture. © 2000 American Association of Oral and Maxillofacial Surgeons