所有病例都合并使用了高位的水平截骨颏前徙术以增进手术效果。
We do the chin advancement for all 4 cases to promote the surgical effects.
目的：探讨下颌升支矢状骨劈开术（SSRO）前徙下颌后，在不同颌周肌肉作用下，下颌升支手术区内的应力分布情况，从理论力学的角度为临床治疗提供依据。
Objective: To study the distribution of stress caused by different mastication muscles in mandibular ramus operative area after sagittal split ramus osteotomy (SSRO), so as to guide the clinical work.
目的探讨眼睑前层后徙术矫治严重及复发性上睑倒睫的临床疗效。
Objective To evaluate the therapeutic effect of anterior palpebral layer retropulsion for severe or recurrent upper eyelid trichiasis.
目的探讨眼睑前层后徙术矫治严重及复发性上睑倒睫的临床疗效。
Objective To evaluate the therapeutic effect of anterior palpebral layer retropulsion for severe or recurrent upper eyelid trichiasis.
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