title: The impact of orthodontic treatment on the quality of life a systematic review.
abstract: BACKGROUND
  Although a great number of specific quality of life measures have been developed to analyze the impact of wearing fixed appliances, there is still a paucity of systematic appraisal of the consequences of orthodontics on quality of life. To assess the current evidence of the relationship between orthodontic treatment and quality of life.
  
  
  METHODS
  Four electronic databases were searched for articles concerning the impact of orthodontic treatment on quality of life published between January 1960 and December 2013. Electronic searches were supplemented by manual searches and reference linkages. Eligible literature was reviewed and assessed by methodologic quality as well as by analytic results.
  
  
  RESULTS
  From 204 reviewed articles, 11 met the inclusion criteria and used standardized health related quality of life and orthodontic assessment measures. The majority of studies (7/11) were conducted among child/adolescent populations. Eight of the papers were categorized as level 1 or 2 evidence based on the criteria of the Oxford Centre for Evidence-Based Medicine. An observed association between quality of life and orthodontic treatment was generally detected irrespective of how they were assessed. However, the strength of the association could be described as modest at best. Key findings and future research considerations are described in the review.
  
  
  CONCLUSIONS
  Findings of this review suggest that there is an association (albeit modest) between orthodontic treatment and quality of life. There is a need for further studies of their relationship, particularly studies that employ standardized assessment methods so that outcomes are uniform and thus amenable to meta-analysis.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhou
authors.forename: Yi
authors.initials: Y
authors.lastname: Wang
authors.forename: XiuYing
authors.initials: X
authors.lastname: Wang
authors.forename: Gerald
authors.initials: G
authors.lastname: Volière
authors.affiliation: Department of Orthodontics, Hospital of Stomatology, Wenzhou Medical University, 113 west college road, 325000 Wenzhou, China. 15608974@qq.com.
authors.forename: RongDang
authors.initials: R
authors.lastname: Hu
mesh_terms: D001294:Attitude to Health; D055094:Evidence-Based Dentistry; D006801:Humans; D009909:Oral Health; D009971:Orthodontics, Corrective / Q000523:psychology*; D011788:Quality of Life