下颌骨是人体的显露部分，易受到外力而引起骨折，其治疗方法主要是理想的复位及稳固的固定。目前的固定方法多用牙合间牵引固定，骨内钢丝固定及夹板内固定等方法。微型钛夹板内固定治疗可以早期恢复张口度及咀嚼功能，治疗期间对发音、进食及呼吸功能影响小，口腔卫生状况也 Mandible is the exposed part of the human body, susceptible to external forces and cause fractures, the treatment is mainly the ideal reset and stable fixation. The current method of fixation with more traction between the occlusal, intraosseous wire fixation and splint fixation methods. Micro-titanium splint internal fixation can restore early mouth opening and chewing function, the treatment of pronunciation, eating and respiratory function, oral hygiene status