Twin-block矫治器治疗年轻成人安氏Ⅱ~1错的临床研究  

Clincical research on treatment of Angle class Ⅱ divisionⅠyoung adults with mandibular retraction by Twin-block appliance

作　　者：王大为[1] 马迅[1] 郭慧[1] 朱双林[1] 何旭顺[1] 

机构地区：[1]中山大学光华口腔医学院.附属口腔医院.口腔医学研究所,广州510055

出　　处：《中华口腔医学研究杂志（电子版）》2008年第6期50-53,共4页Chinese Journal of Stomatological Research(Electronic Edition)

基　　金：广东省医学科研基金(A2007223)

摘　　要：目的探讨Twin-block矫治器(TB)矫治年轻成人下颌后缩型安氏Ⅱ1类错的矫治效果。方法选取11例下颌后缩型安氏Ⅱ1错的年轻成人,采用Twin-block矫治器(TB)以及固定矫治器双期矫治。对治疗前后测量结果进行统计学分析。结果经TB治疗后,所有患者Ⅱ1错得到有效矫治:磨牙中性,覆、覆盖正常,侧貌面型明显改善。结论Twin-block矫治器可以有效矫治年轻成人下颌后缩型安氏Ⅱ1错,能使边缘性病例避免正颌手术。Objectives The purpose of this study is to evaluate the effect of treatment Angle class Ⅱ division Ⅰ with mandibular retraction in young adults with Twin-block appliance and fixed appliance. Methods 11 cases of Angle class Ⅱ division I with mandibular retraction were included. All subjects were treated with Twin-block appliance and fixed appliance without extraction. Cephalograms were taken before and after treatment. Cephalometric analysis was conducted to evaluate the treatment effects. Student＇s t test was used to determine the effect on jaw changes, teeth movement and profile changes before and after treatment. Results After treament, Class I molar relationship was achieved in all subjects. Skeletal and soft tissue facial profile convexity were reduced. Conclusion Twin-block appliance is effective in the treatment of Angle class Ⅱ division I malocclusion with mandibular retraction in young adults. It is suggested that this treatment method could be an alternative to orthognathic surgery in borderline ClassⅡ cases.

关 键 词：安氏Ⅱ^1错[牙合] 下颌后缩 Twin—block矫治器 

分 类 号：R783.5[医药卫生—口腔医学] R543.5[医药卫生—临床医学]