Results The use of intraoral and transoral approach reduced the rate of facial paralysis and scar in the internal fixation operation.No postoperative infection occurred in all the cases.

• 结果：用口内切开辅助经颊小切口入路行下颌骨内固定术，有效地减少了术后面瘫和面部瘢痕的出现，没有术后感染需切开引流或取出固定物的病例。