Evaluation of Sander Ⅱ appliance in the treatment of Angle Ⅱ malocclusion with mandibular retrusion of adolecents
10.3969/j.issn.1001-3733.2016.02.020
- VernacularTitle:SanderⅡ矫治青少年下颌后缩的疗效评价
- Author:
Xinqin SI
;
Xianglin LI
;
Yang LI
;
Yuxia HOU
;
Fei WANG
;
Feng PAN
;
Lu LIU
- Publication Type:Journal Article
- Keywords:
Mandibular retrusion;
Sander Ⅱ appliance;
Adolescent
- From:
Journal of Practical Stomatology
2016;32(2):248-251
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the effects of Sander Ⅱ appliance in the orthodontic treatment of adolescent ClassⅡmalocclusion. Methods:15 cases (6 male and 9 female)of adolescent ClassⅡ malocclusion with mandibular retrution were treated with Sander Ⅱappliance.Pre-treatment and post-treatment Lateral cephalogram measurements were traced and analyzed in terms of 28 indicators. SPSS 19.0 software package was used for paired t test.Results:After treatment,15 patients achieved remarkable improvement in the maxillofacial profile and normal overjet of teeth.The cephalometric analysis showed that ANB,OJ,H°and U1-E decreased(P <0. 05),SNB,B-OLP,Pg-OLP(mm),Ii-OLP,Ms-OLP(mm),Mi-OLP(mm),N-Me,ANS-Me,S-Go,Go-Gn,N'-Pg'/FH,Cm-Sn-Ls and Pg-Pg'increased(P <0.05).There was no significant change in SN-MP,SN-OL and Y-axis before and after treatment. Conclusion:Sander Ⅱ appliance is effective in the treatment of adolescent early Class Ⅱmalocclusion.
