正畸和正颌手术联合矫治牙颌畸形

目的 探讨正畸和正颌手术联合矫治牙颌畸形对于提高疗效、减少复发的临床意义。方法 对４５例牙颌畸形患者术前正畸－正颌手术－术后正畸模式的矫治，并与同期未进行术前、术后正畸的６４例正颌手术病例比较，观察矫澡后的颌面外科、咬合关系及疗效稳定性。结果 正畸和正颌手术联合矫治组治疗后咬合关系良好，咀嚼功能改善率为６２．６％，畸形复发率为２．２％；单纯正颌手术组咀嚼功能改善率为４２．２％，畸形复发率为７．８％

Correction of dento-maxillofacial deformities by using both of orthodontics and orthognathic surgery

Objective To study the clinical results and stability after correction of dento maxillofacial deformities by using both of orthodontics and orthognathic surgery Methods A group of 45 patients with dento maxillofacial deformities were corrected by preoperative orthodontics orthognathic surgery postoperative orthodontics procedure As a control ,another group of 64 patients with the deformities were corrected by orthognathic surgery only The facial appearance, occlusion and stability of two groups after correction were investigated and compared Results In orthodontics and orthognathic surgery group ,62 2% of patients declared that their mastication were improved Relapse rate of deformities was 4 4% In orthognathic surgery group, 42 2% of patients declared that their mastication were improved Relapse rate of deformities was 9 4% Conclusions Using both of orthodontics and orthognathic surgery to correct dento maxillofacial deformities is a good approach to improve results of correction, keep balance of occlusion and reduce the relapse of the deformities