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肌激动器在生长期Ⅱ类Ⅰ分类错矫治中的应用 被引量:3

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摘要 目的:探讨肌激动器矫治生长期Ⅱ类Ⅰ分类错的作用机制,矫治器戴用时间的合理选择。方法:选择处于生长高峰期或高峰前期的Ⅱ类I分类错20例,使用肌激动器矫治。按患者合作程度分为两组,A组:全天(至少20h)戴用矫治器,B组:仅夜间(戴足12h)戴用矫治器。对两组患者治疗前后的X线头影测量指标进行比较分析。结果:两组患者矫治结束后,磨牙及尖牙均达到中性关系,覆覆盖正常,下颌骨及下颌支长度增加,髁突生长改建,下颌位置前移,上下后牙牙槽高度增加,下颌向前上旋转,Ⅱ类骨面型得以改善。两组之间在疗效上无显著性差异。但12h组疗程明显比20h组长。结论:早期应用肌激动器矫治Ⅱ类Ⅰ分类错,无论全天戴还是仅夜间戴(戴足12h)都可有效地抑制上颌骨发育,促进下颌骨生长发育,取得良好的矫治效果。
作者 唐吟 游激
出处 《临床口腔医学杂志》 2008年第6期365-366,共2页 Journal of Clinical Stomatology
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参考文献4

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共引文献5

同被引文献22

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