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Twin Block与直丝弓矫治器在治疗早期骨性安氏Ⅱ错中的应用

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摘要 目的对早期骨性安氏Ⅱ错畸形进行治疗。方法应用Twin Block与直丝弓矫治器联合治疗20例早期骨性错,覆盖大于7mm以上,覆合Ⅲ度以上。结果上切牙后移,下颌基骨和前生长,磨牙关系改为中性偏近中,前牙浅覆合、浅覆盖,直丝弓矫治器配合口外弓对上颌生长起到抑制作用。Twin Block矫治器刺激下颌生长尤其是水平生长效果明显。口外弓施以高位牵力引压入上前牙效果明显,Twin Block压低下前牙效果明显。结论直丝弓矫治器与Twin Block矫治器的联合应用,治疗早期骨性安氏Ⅱ重度深覆合、深覆盖的错进行联合治疗后,颌骨和磨牙的Ⅱ关系得到明显改善,更适应于矫治上颌矢状及垂直向发育过度的Ⅱ类错。
作者 丁建兰
机构地区 徐州市口腔医院
出处 《中国校医》 2007年第2期219-220,共2页 Chinese Journal of School Doctor
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