title: Orthodontic treatment reduces the impact on children and adolescents' oral health-related quality of life.
abstract: BACKGROUND
  Malocclusion is a chronic disability that is usually remedied by orthodontic treatment which can provide the patient with a satisfactory state of oral health.
  
  
  OBJECTIVE
  To assess the current evidence in the literature concerning the impact of malocclusion treatment on the oral health related quality of life (OHRQoL) of children and adolescents.
  
  
  METHODS
  Systematic review.
  
  
  METHODS
  Four databases (PubMed, Web of Science, Scopus and Virtual Health Library) were searched using specified indexing terms, including a manual search for of the references listed in the studies. The articles that met the inclusion criteria were classified regarding methodological quality and risk of bias in categories of high, moderate, or low.
  
  
  RESULTS
  The electronic search produced 426 titles and abstracts, and the manual search of their references detected another 1 article. After excluding duplicate abstracts and applying the inclusion and exclusion criteria, 3 studies were eligible for quality assessment. Among these, 1 was classified as high methodological quality/low risk of bias and 2 as moderate methodological quality/moderate risk of bias. These 3 articles were included in the final qualitative synthesis.
  
  
  CONCLUSIONS
  Malocclusions treatment reduces the impact on children and adolescents' OHRQoL based on evidence assessed in the literature. The level of evidence was moderate to high to detect changes in the impact after orthodontic treatment.
authors.affiliation: Postgraduate Program in Dentistry, School of Dentistry, Fluminense Federal University, Niterói, Brazil.
authors.forename: Eluza
authors.initials: E
authors.lastname: Piassi
authors.affiliation: Postgraduate Program in Dentistry, School of Dentistry, Fluminense Federal University, Niterói; Department of Specific Formation, School of Dentistry, Fluminense Federal University, Nova Friburgo, Rio de Janeiro, Brazil.
authors.forename: Leonardo Santos
authors.initials: LS
authors.lastname: Antunes
authors.affiliation: Postgraduate Program in Dentistry, School of Dentistry, Fluminense Federal University, Niterói; Department of Specific Formation, School of Dentistry, Fluminense Federal University, Nova Friburgo, Rio de Janeiro, Brazil.
authors.forename: Lívia Azeredo Alves
authors.initials: LA
authors.lastname: Antunes
mesh_terms: D000293:Adolescent; D002648:Child; D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D009909:Oral Health; D009971:Orthodontics, Corrective; D011788:Quality of Life