在口腔颌面部，下颌骨由于其面积较大，位置突出，因此在受到外力打击时，骨折发生率较高。目前，大多数临床医生所采用的治疗方法依然是传统的颌间牵引固定，这种方法虽然简便易行，但仍存在一些不可避免的缺点〔１〕。近年来，在临床上较为广泛地应用的微型钛板内固定收到了? In the oral and maxillofacial region, the mandible due to its larger area, the location of prominent, so when subjected to external attack, the fracture rate is higher. At present, most clinicians use the treatment method is still the traditional intermaxillary traction fixation, although this method is simple and easy, but there are still some unavoidable shortcomings [1]. In recent years, more widely used in clinical micro-titanium plate fixation received?