Methods According to different types of the mandible, mandible angle osteotomy was performed in combination with mandible edge, mandible half ring osteotomy or chin augmentation.

• 方法根据不同类型的下颌角肥大 ,在下颌骨截骨的基础上联合应用下颌缘截骨、下颌骨半环形截骨以及下颌自体骨隆颏等综合手术方法改善下颌整体形态。