正颌外科的术前术后正畸治疗是成人正畸(adultorthodontics)中的一类特殊问题 ,既有成人正畸的特点 ,又有别于单纯的成人正畸治疗。鉴于此 ,口腔正畸医师不仅要掌握成人正畸的方法、特点和规律 ,同时要紧密结合正颌外科矫正设计方案 ,以满足外科手术移动颌骨后建立良好咬合关系 Orthognathic Surgery Preoperative and postoperative orthodontic treatment is a special type of problem in adult orthodontics, which is characterized by both orthodontic and adult orthodontic treatment. In view of this, orthodontists should not only master the methods, characteristics and rules of orthodontics, but also combine orthodontics with orthodontic design so as to meet the requirements of establishing a good occlusal relationship after surgical removal of jaw