摘要：目的:分析口内切口入路下颌角骨折的治疗方法及疗效。方法：沿外斜线向下至第一磨牙前庭沟切开黏骨膜，剥离显露下颌角骨折部，用骨剥器置入骨折缝缓慢撬动辅助复位，同时逐渐转张口位为闭口位，恢复咬合关系，颌间结扎，塑形置板于外斜线外侧骨折线上，口外颊侧皮肤作5mm小切口，用自制导孔器(一次性注射器针套)或穿颊器配合钻孔，旋入螺钉固定，骨折不稳定者，再于下颌缘上5mm处增加1板固定。结果：18例均恢复正常咬合关系及张口度。结论：口内切口，手术治疗下颌角骨折，固定可靠，美容效果良好。

    关键词：口内切口 下颌骨角部 骨折 内固定

    Inside the mouth margin angulus mandibulae bone fracture replacement pexia 18 example curative effect analysis

    Gao ChunlianZhang ZhizhongRen Chan et al.

    Abstract：Objective：Analyzes the inside the mouth margin admission passage angulus mandibulae bone fracture the method of treatment and the curative effect. Methods： To first does a lot of talking along the outside oblique line the vestibule ditch incision to mount the periosteum downward,the peeling revealed the angulus mandibulae bone fracture department,exhausted sets with the bone thes bone to interthe body or bones of a monk the creasing slow skid to move the assistance replacement,simultaneously transfers the yawn position is gradually the blind tuyere position,restores the linking relations,between the jaw ties up,models the shape to set at the board in the outside oblique line flank bone broken line,outside the mouth the cheek side skin makes the 5mm small margin,(disposable injector needle set) or puts on the cheek coordination drill hole with the self-made pilot hole,turns on lathe into the screw retention,the bone fracture not stability,again in lower jaw reason 5mm place increase 1 board fixed. Results： 18 examples restore the normal linking relations and the yawn. Conclusion： The inside the mouth margin,the surgery treats the angulus mandibulae bone fracture,fixed reliable,cosmetology effect good. ......