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前方牵引联合快速扩弓矫治骨性Ⅲ类错

The Journal of Practical Medicine(2008)

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Abstract
目的:评价前方牵引联合快速扩弓矫治替牙期骨性前牙反引起的牙颌面软硬组织变化。方法:对20例7~9.2岁替牙期患者以T2-T1代表自然生长6个月的改变,T3-T2代表应用前方牵引联合快速扩弓6个月的改变,对软硬组织的变化进行分析。结果:治疗6个月后,A点前移1.47mm,SNB、SNPg和Pg-Np明显减小,ANB增大3.62°Wits值增加4.39mm,上唇倾角明显改善。结论:前方牵引联合快速扩弓能促进上颌骨发育,下颌,骨后下移位,有效纠正替牙期前牙反,改善侧貌。
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