安氏Ⅱ类1分类拔牙与非拔牙矫治长期稳定性的Meta分析

Long-term stability of Class Ⅱ division 1 malocclusion treated with or without extraction: meta analysis

目的系统评价安氏Ⅱ类1分类错[牙合]畸形拔牙与非拔牙矫治的长期稳定性。方法通过电子文献检索PubMed、Cochrane、中国知网(CNKI)数据库,Google学术、Medline、Web of knowledge所有已发表有关安氏Ⅱ类1分类错[牙合]畸形拔牙与非拔牙矫治长期稳定性的中英文相关文献,根据纳入和排除标准筛选出符合要求的文献。应用Stata,Version 12.0软件进行Meta分析。结果初检共获得5210篇文献,最终纳入11篇文献进行分析。Meta分析结果显示,长期保持后上颌尖牙间宽度拔牙组复发0.33 mm(P=0.377),在非拔牙组复发0.004 mm(P=0.987);ANB角在拔牙组改变0.208°(P=0.791),非拔牙组改变0.131°(P=0.9)。前牙不齐指数拔牙组变化2.921mm(P<0.001)。非拔牙组变化1.498mm(P=0.004)。结论安氏Ⅱ类1分类错[牙合]畸形拔牙与非拔牙矫治上颌尖牙间宽度和ANB角具有长期稳定性,前牙排列长期稳定性不佳。

Objective To evaluate the long-term stability of ClassⅡDivision 1 malocclusion treated with or without extraction.Methods The PubMed,Cochrane database,CNKI,Google scholar,Medline and Web of Science were searched to collect all related literature with study on the long-term stability of ClassⅡDivision 1 malocclusion.The literatures were screened according to the inclusive and exclusive criteria.The data entered Stata,Version 12.0 software for Meta analysis.Results A total 5210 articles were obtained after primary searching,and finally 11 articles were selected for Meta analysis.After long-term retention,the relapse of width of maxillary canine in extraction studies was 0.33 mm(P=0.377).In nonextraction studies,the change was 0.004 mm(P=0.987).The ANB relapse amount was 0.208 degree(P=0.791)in extraction studies.In the nonextraction studies ANB relapse was 0.131 degree(P=0.9).Irregularity index in the extraction studies was 2.921 mm(P<0.001),in the nonextraction studies was 1.498 mm(P=0.004).Conclusion Long-term stability of ClassⅡdivision 1 malocclusion treated with or without extraction can be achieved in width of maxillary canine and ANB,but the alignment of anterior teeth gets relapsed.