发育性下颌骨不对称畸形的正颌外科治疗探讨

The orthognathic treatment of developmental mandibular asymmetry

目的 探讨通过正颌手段治疗发育性下颌骨不对称畸形 ,以获得良好的口腔功能和面部外形并防止复发的方法。方法 对我科 1990年以来所收治的 37例发育性下颌骨不对称畸形的类型、诊断方法、治疗手段及疗效进行回顾性总结。结果 根据不同的类型采用相应的处理方法 ,均获得满意的疗效 ,术后皆获得良好的口腔咬合功能和面部外形。结论 发育性下颌骨不对称畸形的正颌外科治疗 ,在完善面部外形时 ,术前正畸可保证术后良好的口腔咬合功能 ;术前应确诊下颌骨不对称的畸形发育业已停止抑或尚在继续增生发展 ;骨畸形的矫正与软组织的矫正尽可能分次进行。

Objective To explore the methods of orthognathic treatment for the developmental mandibular asymmetry to simultaneously achieve satisfactory facial appearance and oral functions and to prevent recurrence of the deformity. Methods 37 cases of developmental mandibular asymmetry have been treated in past seven years. The type of the deformity,the management of the cases,and the effects of therapy were summarized in this paper. Results According to the type of the asymmetric deformity,different means were used. After treatment,all the patients obtained satisfactory facial appearance and oral function. Conclusions During the orthognathic treatment,it is important to simultaneously ameliorate facial appearance and achieve good oral function. It should be diagnosed before surgery whether the development of the deformity is steady or not. The correction of skeleton and soft tissues must be performed by stages.