Clinical Effect of Tip-Edge plus Appliance in Children with Angle Ⅱ1 Malocclusion  

作　　者：徐璐璐 陈莉莉 杜星颜 高振洋 刘洪臣 

机构地区：[1]Department of Stomatology, China PLA General ~lospital, Beijing 100853, China [2]Department of Stomatology, Union Hospital Tongfi Medical College, Huazhong University of Science and Technology, Wuhan430022, China

出　　处：《Journal of Huazhong University of Science and Technology(Medical Sciences)》2013年第6期886-891,共6页华中科技大学学报（医学英德文版）

基　　金：supported by grants from the National Natural Science Foundation of China(No.81100776);Army Medical Research "12th Five-Year Plan" project(CWS11J118)

摘　　要：The effects of Tip-Edge plus appliance in the treatment of Angle Ⅱ1 malocclusion and the mechanism were investigated. Fifty-two Angle Ⅱ1 children, aged from 12.3-14.2 years, with mandibu- lar retrusion in permanent dentition were selected and treated with Tip-Edge plus appliance. Lateral cephalometric films taken before and after treatment were analyzed. The arithmetic mean and standard deviation were calculated for each variable. Paired t-test was performed to evaluate the significant treatment change. Results showed that the average treatment time was 16 months. Normal overjet and overbite were established with retroclination of upper incisors and proclination of lower incisors. U1-NA was decreased by 15.4° （P〈0.01）. ANB and Y axial angle were decreased significantly （P〈0.05） Soft tissue measurements showed that FCA and UL-E were decreased dramatically （P〈0.05）, and LL-E was increased significantly （P〈0.05）. Remarkable soft tissue change was noted after the treatment and convex facial profile changed to the straight profile. In conclusion, Tip-Edge plus technique can quickly and efficiently correct anterior bite and lateral outlook.The effects of Tip-Edge plus appliance in the treatment of Angle Ⅱ1 malocclusion and the mechanism were investigated. Fifty-two Angle Ⅱ1 children, aged from 12.3-14.2 years, with mandibu- lar retrusion in permanent dentition were selected and treated with Tip-Edge plus appliance. Lateral cephalometric films taken before and after treatment were analyzed. The arithmetic mean and standard deviation were calculated for each variable. Paired t-test was performed to evaluate the significant treatment change. Results showed that the average treatment time was 16 months. Normal overjet and overbite were established with retroclination of upper incisors and proclination of lower incisors. U1-NA was decreased by 15.4° （P〈0.01）. ANB and Y axial angle were decreased significantly （P〈0.05） Soft tissue measurements showed that FCA and UL-E were decreased dramatically （P〈0.05）, and LL-E was increased significantly （P〈0.05）. Remarkable soft tissue change was noted after the treatment and convex facial profile changed to the straight profile. In conclusion, Tip-Edge plus technique can quickly and efficiently correct anterior bite and lateral outlook.

关 键 词：Tip-Edge plus appliance Angle Ⅱ1 malocclusion mandibular retrusion cephalometric measurements 

分 类 号：R788[医药卫生—口腔医学]