磁力矫治器是矫治上颌发育不足 ,下颌前突引起的骨性反牙合的重要手段。我们用磁力矫治器矫治疗骨性反牙合患者 2 0例 ,取得了满意的疗效 ,现分析报告如下。1　对象和方法1.1　对象　本组年龄 4～ 12岁之间 ,平均年龄 8.5岁。临床表现为后牙完全 类咬牙合关系 ,呈凹面型 ,前牙 Magnetic appliance is the treatment of maxillary hypoplasia, mandibular protrusion caused by an important means of anti-orthopedic joint. We use magnetic appliance orthodontic treatment of skeletal anti-occlusal 20 cases, and achieved satisfactory results, the analysis report is as follows. 1 objects and methods 1.1 The object of this group of 4 to 12 years old, with an average age of 8.5 years old. The clinical manifestations of the complete type of posterior teeth bite occlusion, was concave type, anterior teeth