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目的比较平导、多曲方丝弓治疗深覆的效果。方法随机选择深覆Ⅱ度以上儿童患者30例,年龄12～17岁,随机分为2组,采用方丝弓矫治技术,分别使用平导和多曲方丝弓打开咬合,在矫治前后拍摄头颅定侧位片,并进行头影测量分析和统计学分析。结果 2组均能有效打开咬合,平导组以磨牙升高为主,多曲方丝弓组以压低前牙为主,而对于2组磨牙升高或前牙压低量的比较,其差别有显著性,P<0.05。结论平导和多曲方丝弓均能有效治疗深覆,但作用机制不同,临床上可选择合适的病例使用。
Objective To compare the effect of flat guide and multiple curved square arch in the treatment of deep overburden. Methods Thirty patients aged 12-17 years were randomly assigned to two groups of children with degree Ⅱ or more. The technique of square wire arch was used to open the bite and the bingo was performed before and after the treatment Head fixed lateral films, and cephalometric analysis and statistical analysis. Results The two groups were able to open the bite effectively, the flat lead group mainly consisted of molars, and the multiple curved arch arch group mainly depressed the anterior teeth, while the differences between the two groups Significance, P <0.05. Conclusion Both flat guide and multi-curved square arch can effectively treat deep overburden, but the mechanism of action is different, and the patients can choose the appropriate cases for clinical use.