SanderⅢ矫治器矫治早期骨性Ⅲ类错牙合疗效分析

摘要

目的：探讨SanderⅢ矫治器矫治早期骨性Ⅲ类错牙合畸形的疗效。方法：混合牙列中度骨性Ⅲ类错牙合患者30例，配戴SanderⅢ矫治器12个月，用Steiner和Tweed分析法测量治疗前后患者的头颅定位侧位片。结果：SNA角、ANB角、UI‐LI角、面突角，治疗前后比较差异有统计学意义（P＜0．01），临床结果显示中度骨性Ⅲ患者的错牙合畸形纠正。结论：SanderⅢ矫治器矫治中度骨性Ⅲ类错牙合畸形疗效肯定；对骨性反覆牙合深患者需配合牙合垫矫治器，可缩短治疗时间，提高疗效。%Objective:To study the efficacy of Sander Ⅲ rectification device in correcting moderate bony classIII malocclusion .Methods:30 patients with moderate bony class III malocclusion ,then they weared Sander Ⅲcorrectional implement 12 months , the patients'pretreatment and posttreatment cephalometric radiolographs was measured by Steiner and Tweed analysis method ,reoccupy SPSS 18 .0 statistical software matching T test .Results :The clinical result showed patients with moderate bony class III malocclusion were corrected ,there was a very signif‐icant statistical significance (P< 0 .01) with∠SNA ,∠ANB ,∠UI‐LI and∠Ns‐Sn‐Pos .Conclusion :The efficacy of Sander Ⅲ rectification device in correcting moderate bony classIII malocclusion is affirmative ;need to cooperate with the jaw pad rectification device in patients with osseous repeatedly deepbite ,it can shorten the treatment time , improve the curative effect ;Osseous classIII facial forms is obvious improved ,and the efficacy of Sander Ⅲ in cor‐recting moderate bony classIII malocclusion is good .