下颌骨发育性不对称畸形,即面下三分之一不对称,是颌面部不对称畸形中较多见者,大都为下颌骨的形态异常所致。现将我院收治的50例病例、进行总结分析于下。临床资料本组收集病例:50例。性别:男28例,女22例,男女之比为1.75:1.35。年龄:最大41岁,最小18岁,平均24.5岁。病变部位;左27例,右23例。病因:髁状突增生22例,颞颌关节强直后 Asymmetric mandibular deformity, which is one-third of the inferior face, is more common in maxillofacial asymmetric deformities, mostly caused by abnormalities in the mandible. Now 50 cases admitted to our hospital for a summary analysis of the next. Clinical data collected in this group of cases: 50 cases. Gender: 28 males and 22 females, with a ratio of 1.75 to 1.35. Age: maximum 41 years old, minimum 18 years old, average 24.5 years old. Lesions; left 27 cases, right 23 cases. Etiology: Condylar process in 22 cases, after temporomandibular joint ankylosis