title: Prevalence of sleep bruxism in children: a systematic review.
abstract: BACKGROUND
  Prevalence of sleep bruxism (SB) in children is subject to discussions in the literature.
  
  
  OBJECTIVE
  This study is a systematic literature review aiming to critically assess the prevalence of SB in children.
  
  
  METHODS
  Survey using the following research databases: MEDLINE, Cochrane, EMBASE, PubMed, Lilacs and BBO, from January 2000 to February 2013, focusing on studies specifically assessing the prevalence of SB in children.
  
  
  RESULTS
  After applying the inclusion criteria, four studies were retrieved. Among the selected articles, the prevalence rates of SB ranged from 5.9% to 49.6%, and these variations showed possible associations with the diagnostic criteria used for SB.
  
  
  CONCLUSIONS
  There is a small number of studies with the primary objective of assessing SB in children. Additionally, there was a wide variation in the prevalence of SB in children. Thus, further, evidence-based studies with standardized and validated diagnostic criteria are necessary to assess the prevalence of SB in children more accurately.
authors: Federal University of Santa Maria.
authors: Eduardo
authors: E
authors: Machado
authors: Federal University of São Paulo.
authors: Cibele
authors: C
authors: Dal-Fabbro
authors: Federal University of Paraná.
authors: Paulo Afonso
authors: PA
authors: Cunali
authors: UFSM.
authors: Osvaldo Bazzan
authors: OB
authors: Kaizer
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D015995:Prevalence; D020186:Sleep Bruxism / Q000453:epidemiology*
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