Al-Thomali Yousef, Basha Sakeenabi, Mohamed Roshan Noor
Division of Orthodontics, Department of Preventive Dental Sciences, Taif University School of Dentistry, Taif, Saudi Arabia.
Division of Community Dentistry, Department of Preventive Dental Sciences, Taif University School of Dentistry, Taif, Saudi Arabia.
Turk J Orthod. 2017 Mar;30(1):21-27. doi: 10.5152/TurkJOrthod.2017.010. Epub 2017 Mar 1.
The present systemic review was conducted with the main purpose to evaluate the quantitative effects of orthognathic surgeries, extraction versus non-extraction treatment, and the type of malocclusion in the stability of anterior open-bite (AOB) correction over the long-term.
The systematic search for studies was conducted through MEDLINE, CINAHL, EMBASE, Scopus, PsychINFO, various key journals, and review articles; November 30, 2016, was the last date for the search. The Quality Assessment Tool for Quantitative Studies was used to grade the methodological quality of the studies.
The present review included 14 studies. Stability of the corrected AOB ranged from 61.9% to 100%. The studies with orthognathic surgeries showed a stability of 70-100%. The studies without orthognathic surgeries showed the stability of 61.9-96.7%. All of the studies were retrospective. The mean change in AOB before (T1) and after treatment (T2-T1) was 0.1 mm to 6.93 mm and the mean change in overbite from T2 to T3 (T3-T2) was -0.06 mm to 2.5 mm.
Studies with orthognathic surgeries presented with high amount of long-term stability in corrected AOB. No significant difference was noticed in relation to the type of malocclusion and extraction or non-extraction cases.
进行本次系统评价的主要目的是评估正颌手术、拔牙与不拔牙治疗以及错牙合类型对长期矫正前牙开牙合（AOB）稳定性的量化影响。
通过MEDLINE、CINAHL、EMBASE、Scopus、PsychINFO、各种关键期刊和综述文章对研究进行系统检索；检索截止日期为2016年11月30日。使用定量研究质量评估工具对研究的方法学质量进行评分。
本综述纳入了14项研究。矫正后AOB的稳定性范围为61.9%至100%。正颌手术的研究显示稳定性为70%-100%。非正颌手术的研究显示稳定性为61.9%-96.7%。所有研究均为回顾性研究。治疗前（T1）和治疗后（T2-T1）AOB的平均变化为0.1毫米至6.93毫米，覆牙合从T2到T3（T3-T2）的平均变化为-0.06毫米至2.5毫米。
正颌手术的研究在矫正后的AOB中表现出较高的长期稳定性。在错牙合类型以及拔牙或不拔牙病例方面未发现显著差异。
