The effects of maxillary protraction therapy with rapid maxillary expansion on class Ⅲ malocclusion: A meta-analysis
10.3969/j.issn.1001-3733.2017.04.011
- VernacularTitle:快速扩弓联合前方牵引矫治骨性Ⅲ类错(牙合)疗效的Meta分析
- Author:
Zaidao XIONG
;
Jie KE
;
Guizhi ZHAO
;
Qinghua LIN
;
Xinming YANG
;
Yihan XIAO
- Keywords:
Class Ⅲ malocclusion;
Rapid maxillary expansion;
Maxillary protraction;
Meta-analysis
- From:
Journal of Practical Stomatology
2017;33(4):481-486
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the effects of maxillary protraction with or without rapid maxillary expansion in the treatment of Class Ⅲ malocclusion by Meta-Analysis.Methods:The randomized controlled trail,quasi-randomized controlled trail and the clinical controlled trail about the treatment of Class Ⅲ malocclusion by protraction with or without expansion were searched in the database of Cochrane Library,Embase,PubMed,Medline,CBM,Wan Fang,CNKI,VIP.2 authors qualified and extracted the data independently.Then the Meta-analysis was performed by using the RevMan 5.3 software.Results:7 studies with 228 cases were included,114 cases were treated by maxillary protraction with expansion and the other 114 cases by maxillary protraction without expansion.The Meta-analysis showed that:there was no significant difference in SNA,SNB,ANB and SN-PP except ANS-Me,U1-NA,SN-MP.A favorable improvement of the sagittal relationship between maxillary and mandibular was observed by using protraction whether with expansion or not.The expansion did not shorten the course of treatment,but it lowered the inclination of upper incisors,resulting in more clockwise rotation of mandibular plane and increase of the facial vertical dimension.Conclusion:Maxillary protraction with rapid maxillary expansion can be used in the treatment of class Ⅲ malocclusion with incisor labioclination.
