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目的探讨儿童安氏Ⅱ类1分类错畸形患者的二次矫治成功的方法与措施。方法利用口外弓及种植支抗使已前移的磨牙向远中移位,并行磨牙控根和磨牙正轴等方法,对矫治失败的32例成年患者进行第二次矫治。结果 32例患者经第二次矫治均达到较理想的效果。结论对磨牙支抗控制不利是第一次矫治失败的主要原因,口外弓及种植支抗的灵活运用,可使丧失的磨牙支抗重新恢复。
Objective To investigate the methods and measures for the success of secondary orthodontic treatment in children with Class Ⅱ division 1 malocclusion. Methods A total of 32 adult patients with unsuccessful orthodontics were treated for the second time by means of the extraoral arch and implanting support. Results 32 patients after the second correction achieved better results. Conclusion The negative control of molar support is the main reason for the failure of the first orthodontic treatment. The flexible application of oral arch and implant support can restore the lost molar support.