title: Childhood bruxism: Related factors and impact on oral health-related quality of life.
abstract: This study aimed to assess childhood bruxism relating associated factors and the bruxism's impact on oral health-related quality of life (OHRQoL). A case-control study was performed with 3- to 6-year-old children obtained from public preschools in Brazil. The case and control groups had 21 and 40 children, respectively. Associations between bruxism and respiratory problems (p = 0.04, OR: 0.33, CI: 0.09 to 1.14), dental wear (p < 0.01, OR: 0.01, CI: 0.00 to 0.05), malocclusion (p < 0.01, OR: 0.06, CI: 0.01 to 0.35), and dental caries (p = 0.02, OR: 0.22, CI: 0.04 to 1.04) were observed. The OHRQoL overall mean score and subscales were relatively low independent of the evaluated group (p > 0.05). The association between presence and absence of impact with bruxism or other variables showed no statistical relationship (p > 0.05). It could be concluded that childhood bruxism is related to respiratory problems, dental wear, dental caries, and malocclusion. Despite being a topic that demands special care in dentistry, bruxism does not significantly affect the OHRQoL.
authors.affiliation: 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
authors.affiliation: School of Dentistry, Fluminense Federal University, Nova Friburgo, Rio de Janeiro, Brazil.
authors.forename: Thuanny
authors.initials: T
authors.lastname: Castilho
authors.affiliation: School of Dentistry, Fluminense Federal University, Nova Friburgo, Rio de Janeiro, Brazil.
authors.forename: Marcello
authors.initials: M
authors.lastname: Marinho
authors.affiliation: Department of Specific Formation, School of Dentistry, Fluminense Federal University, Nova Friburgo, Rio de Janeiro, Brazil.
authors.forename: Renato Silva
authors.initials: RS
authors.lastname: Fraga
authors.affiliation: 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
mesh_terms: D001938:Brazil / Q000453:epidemiology; D002012:Bruxism / Q000150:complications* / Q000453:epidemiology*; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D019140:Dental Care for Children; D005260:Female; D006801:Humans; D008297:Male; D009909:Oral Health; D011594:Psychometrics; D011788:Quality of Life; D012307:Risk Factors
keywords: bruxism; child; oral health; quality of life