Objective: To evaluate the epidemiology and treatment of segmental defect of mandible.
Methods: A total of 541 patients were evaluated retrospectively. The character of the mandibular defect and method of reconstruction were analyzed.
Results: The majority of segmental defect of mandible were found in 40 - 70 years old males and the leading cause was tumor. The reconstruction methods included soft flap, reconstruction plate and bone grafts. The main complications were infection and fistula.
Conclusions: Tumor was the main cause of segmental resection of mandible, which occurs mainly in adult males. The body of the mandible was often involved. Vascularized bone grafts were the main methods in reconstruction of mandible.