Meta-analysis of the condylar position changes produced by functional appliances in class Ⅱ malocclusion.
- Author:
Xinqi HUANG
1
;
Xiao CEN
2
Author Information
- Publication Type:Journal Article
- Keywords: angle class Ⅱ malocclusion; condyle; functional appliance; meta-analysis; systematic review
- MeSH: Databases, Factual; Humans; Malocclusion, Angle Class II
- From: West China Journal of Stomatology 2016;34(6):589-593
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVEThis study aimed to analyze the condylar position changes produced by functional appliances in class Ⅱ malocclusion by systematic review.
METHODSElectronic search was conducted using Chinese Biomedical Literature Database, China National Knowledge Infrastructure, VIP Database for Chinese Technical Periodicals, Medline, Embase, Pubmed, and Cochrane Central Register of Controlled Trials. Studies on condylar position changes produced by functional appliances in class Ⅱ malocclusion were included. Risk of bias assessment and data extraction of included studies were conducted by two reviewers independently. The meta-analysis was carried out using Revman 5.1.
RESULTSSix studies were included (five high quality and one low quality). The condylar position showed no changes after Herbst treatment. The condylar posterior space after Twin-block treatment averagely increased by 0.31 mm (P<0.000 01), whereas the condylar anterior space averagely reduced by 0.32 mm (P<0.000 01).
CONCLUSIONSTwin-block appliance enables forward movement of the condylar position. This result contributes to the correction of class Ⅱ malocclusion.
