颌骨创伤，整形或植骨，采用牙弓夹板，骨间钢丝内缝合或依颌支架等多需辅以长时间颌间牵引的传统固定方法，这些方法有不少弊端［fi。早在H十世纪初，l。ane、Kirsoher就利用普通钢板、螺纹钉等内固定技术治疗下颌骨骨折，以减少或取代对颌间固定的依赖。因钢材质量差、密纹螺 Jaw trauma, plastic or bone graft, the use of dental arch splint, interosseous wire suture or according to the mandibular support required by a long time intermaxillary traction traditional fixation methods, these methods have many drawbacks [fi. As early as the early H century, l. ane, Kirsoher on the use of ordinary plate, screw fixation and other internal fixation of mandibular fractures to reduce or replace the dependence on intermaxillary fixation. Due to the poor quality of steel, snails