广东牙病防治2013，Vol.21Issue(10)：513-516,4.
单颌和双颌拔牙矫治成人骨性Ⅱ类1分类错(牙合)疗效比较
Comparison of the effects of two extraction patterns for adults in skeletal Class Ⅱ division 1 malocclusions
王臻 1罗尚叠 1戴静桃 1林凯申 1王远勤 1苗辉1
作者信息
- 1. 暨南大学医学院附属惠州口腔医院·惠州市口腔医院正畸中心,广东惠州,516000
- 折叠
摘要
Abstract
Objective Comparing the effects of two alternative Class Ⅱ division Ⅰ treatment modalities for adult,to investigate the better treatment for Class Ⅱ division Ⅰ malocllusion.Methods Twenty adults with skeletal class Ⅱ division 1 were divided into two groups.and treated as followed.Group A was treated with extraction of two upper first bicuspids,group B was treated with extraction of two upper first bicuspids and two lower second bicuspids.Pretreatment and posttreatment lateral cephalograms were analyzed using cephalometric analysis and the data was analyzed by SPSS13.0.Results The angle of U1-FH,H,U1-AP decreased,Z angle increased,upper and lower lip intruded significantly in both groups.The length of lower lip to E line in group B was decreased larger significantly than that in group A.Although the Z angle increment in group B was larger than group A.Conclusion Both methods could achieve the goal of retracting the upper incisors,improving the profiles; while four bicuspids extraction could achieve more significantly change.关键词
正畸治疗/Ⅱ类错(牙合)/拔牙/软组织侧貌Key words
Orthodontic treatment/ Class Ⅱ malocclusion/ Extraction/ Soft-tissue profile分类
医药卫生引用本文复制引用
王臻,罗尚叠,戴静桃,林凯申,王远勤,苗辉..单颌和双颌拔牙矫治成人骨性Ⅱ类1分类错(牙合)疗效比较[J].广东牙病防治,2013,21(10):513-516,4.
