目的：观察单侧或部分下颌骨缺损重建术后升支高度和下颌骨髁状突运动的变化。

Objective: the purpose of this study is to observe the changes of ramus height and condylar movement after mandibular reconstruction.

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方法对102例新鲜颌骨骨折患者采用术前牵引后口内进路暴露颌骨骨折部位(除外下颌升支及髁状突骨折)以钛板坚强内固定的方法使骨折段复位固定。

Methods Intraoral incision was used to fix 102 cases of jaw fracture with titanium mini-plate and accompanied by the intermaxillary elastic traction before operation that made fracture bone fixed.

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目的：应用粗裂钻和薄刃锐利骨凿施下颌骨升支垂直截骨术和矢状劈开截骨术治疗下颌骨前突畸形。

Objective:To correct mandibular prognathism with the technique of sagittal split ramus osteotomy(SSRO) and extraoral vertical ramus osteotomy(EVRO).

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