结论采用微型侧壁螺丝刀经口腔内固定下颌骨角部和髁状突颈部骨折，完全避免了颌面部皮肤切口，尤其对患者的心理安慰，意义重大。
Conclusions Intraoral internal fixation on mandibular Angle and condyle fracture with a micro-angular screwdriver avoided facial incisions thoroughly it was of great significance to the patients.
方法：对21例下颌骨角部和升支骨折患者，经口内切口联合颊部小切口穿刺复位内固定。
Methods 21 cases of mandibular angle and ramus fractures were treated by screwed miniplates placed through an intraoral incision with transbuccal mini-incision.
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