title: Clinical effect of Tip-Edge plus appliance in children with angle II(1) malocclusion.
abstract: The effects of Tip-Edge plus appliance in the treatment of Angle II(1) malocclusion and the mechanism were investigated. Fifty-two Angle II(1) children, aged from 12.3-14.2 years, with mandibular 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.
authors: Department of Stomatology, China PLA General Hospital, Beijing, 100853, China.
authors: Lu-Lu
authors: LL
authors: Xu
authors: Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
authors: Li-Li
authors: LL
authors: Chen
authors: Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
authors: Xing-Yan
authors: XY
authors: Du
authors: Department of Stomatology, China PLA General Hospital, Beijing, 100853, China.
authors: Zhen-Yang
authors: ZY
authors: Gao
authors: Department of Stomatology, China PLA General Hospital, Beijing, 100853, China. liu-hc@301dent.com.
authors: Hong-Chen
authors: HC
authors: Liu
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D009967:Orthodontic Appliances