外科矫正骨型下颌后缩畸形的术前术后正畸治疗

以近期连续收治的 17例骨型严重下颌后缩 (已作正颌手术 )的患者为例 ,重点介绍对该类畸形患者的术前准备 ,特别是术前术后正畸治疗及导板的应用。正畸治疗内容包括 :去代偿扩大上牙弓 ,排齐牙齿 ,平整曲线 ,使上下牙弓形态协调 ,恢复平衡重建良好的咬合关系。作者的经验表明 ,对严重骨型下颌后缩患者 ,要获得形态和功能完美结合的理想治疗目标 ,外科和正畸联合治疗 ,特别是术前、术后的正畸准备 ,是保证手术成功的必须和必要的条件。

Orthodontic Treatment for the Surgical Correction\;of Mandibular Skeletal Retrognathism

The purpose of this paper is to discuss the combining orthodontic treatment that is based on seventeen consecutive patients of severe mandibular skeletal retrognathism who have been treated by orthognathic surgery. Not only the presurgical preparation, but also the presurgical and postsurgical orthodontic treatment and the use of interocclusal splints were introduced. The goals of orthodontic treatment for patients with orthognathic surgery are (1) decompensating the teeth, expanding the upper dental arch, (2) aligning the teeth, (3) leveling the curve of Spee, (4) making the shape and width of upper and lower dental arch harmonious, (5) getting the occlusal equilibrium and fine occlusal contact.The author's experience indicates that: in order to get satisfactory results of esthetics and function, the combination of surgical and orthodontic treatment, the presurgical and postsurgical orthodontic treatment is absolutely necessary and important.