Root resorption during orthodontic treatment with self-ligating or conventional brackets: a systematic review and meta-analysis

BMC Oral Health

Research Article

Jianru Yi¹  Zhihe Zhao¹  Meile Li¹  Yu Li¹  Xiaobing Li² 

[1] Department of Orthodontics, State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, #14, 3rd Section, South Renmin Road, 610041, Chengdu, People’s Republic of China;Department of Pediatric Dentistry, State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China;

关键词: Self-ligating bracket;    Conventional bracket;    Root resorption;    Systematic review;   

DOI  :  10.1186/s12903-016-0320-y

 received in 2016-07-10, accepted in 2016-11-10,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundThe aim of this study was to compare the external apical root resorption (EARR) in patients receiving fixed orthodontic treatment with self-ligating or conventional brackets.MethodsStudies comparing the EARR between orthodontic patients using self-ligating or conventional brackets were identified through electronic search in databases including CENTRAL, PubMed, EMBASE, China National Knowledge Infrastructure (CNKI) and SIGLE, and manual search in relevant journals and reference lists of the included studies until Apr 2016. The extraction of data and risk of bias evaluation were conducted by two investigators independently. The original outcome underwent statistical pooling by using Review Manager 5.ResultsSeven studies were included in the systematic review, out of which, five studies were statistically pooled in meta-analysis. The value of EARR of maxillary central incisors in the self-ligating bracket group was significantly lower than that in the conventional bracket group (SMD −0.31; 95% CI: −0.60–−0.01). No significant differences in other incisors were observed between self−ligating and conventional brackets.ConclusionsCurrent evidences suggest self-ligating brackets do not outperform conventional brackets in reducing the EARR in maxillary lateral incisors, mandible central incisors and mandible lateral incisors. However, self-ligating brackets appear to have an advantage in protecting maxillary central incisor from EARR, which still needs to be confirmed by more high-quality studies.

【 授权许可】

CC BY   
© The Author(s). 2016