安氏Ⅱ1类错牙合畸形在临床上主要表现为磨牙远中关系,上前牙唇倾前突,前牙深覆盖。矫治方法可依据错牙合畸形的轻重及形成的机制分拔牙与不拔牙两种情况。口外弓推磨牙向远中是采用不拔牙治疗该病的方法之一,只要掌握好适应征,可取得较好的预期效果,现报告如下:1　材料和方法1 Angle Class Ⅱ malocclusion Ⅱ 1 malocclusion in clinical manifestations mainly for the relationship between the molars, the front teeth lip tilt forward, the anterior teeth deep coverage. Correction method can be based on the severity of malocclusion deformity and the formation of the mechanism of tooth extraction and non-extraction of two cases. Extraoral bow to push the molar is far away from the use of non-extraction of the treatment of the disease is one of the methods, as long as the indications are good, you can achieve better expected results are as follows: 1 Materials and methods 1