安氏Ⅱ类2分类错牙合是Ⅱ类错牙合畸形中较常见的一种。矫治时因其前牙闭锁复牙合较深,常造成下前牙托槽粘接困难或频繁脱落,影响固定矫治器作用的发挥。本文将前牙平导活动矫治器与直丝弓固定矫治器联合作用,充分发挥两种矫治器的优势,使内倾型深复牙合的治疗简化,疗程缩短,取 Class Ⅱ Division 2 malocclusion is a type II malocclusion in the more common type. Correction because of its anterior teeth occlusion complex complex, often resulting in lower anterior teeth brackets bonding difficulties or frequent off, affecting the role of fixed appliance play. In this paper, the anterior mandibular guide appliance and straight wire fixation appliances combined effect, give full play to the advantages of two appliances, so that the treatment of deep inward complex type of complex reduction, shorten the course of treatment, take