title: Evaluation of parents/guardian knowledge about the bruxism of their children: Family knowledge of bruxism.
abstract: OBJECTIVE
  Bruxism is the habitual, involuntary grinding or clenching of the teeth that affects both children and adults. The aim of the present study was to assess the level of knowledge parents/guardians have about the bruxism of their children.
  
  
  METHODS
  A cross-sectional epidemiological study was developed for 221 parents/guardians of patients of the pediatric dentist in the Faculty of Dentistry of the Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil. A previously tested questionnaire, based on the criteria of the American Association of Sleep Medicine (AASM), was used to collect data from the participants in the waiting room of the clinics involved. Descriptive analysis was elaborated and the chi-squared test was applied (level of significance of 5%) using statistical software SPSS 17.0.
  
  
  RESULTS
  The majority of the participants were mothers of the patients (84.2%). The mean age of the parents/guardians was 36.6 years. The mean age of children was 7.6 years. In total, 76.6% of the mothers, 40.2% of the fathers, and 48% of the children reported having bruxism. The participants believed that bruxism was associated with emotional factors (63.8%) and/or mystical factors (20.4%). The majority reported having sought help from doctors (54.4%), followed by mystics (20.4%) and dentists (19.1%). A statistically significant association was found between bruxism and children with restless sleep (P < 0.001) and in cases where both the parents and children were affected by bruxism (P < 0.001).
  
  
  CONCLUSIONS
  Families require greater clarification regarding the factors that trigger bruxism.
authors.affiliation: Department of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
authors.forename: Junia Maria
authors.initials: JM
authors.lastname: Serra-Negra
authors.forename: Debora
authors.initials: D
authors.lastname: Tirsa-Costa
authors.forename: Flavia H
authors.initials: FH
authors.lastname: Guimarães
authors.forename: Saul Martins
authors.initials: SM
authors.lastname: Paiva
authors.forename: Isabela Almeida
authors.initials: IA
authors.lastname: Pordeus
mesh_terms: D000328:Adult; D000368:Aged; D001938:Brazil / Q000453:epidemiology; D017028:Caregivers / Q000523:psychology*; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010290:Parents / Q000523:psychology*; D020186:Sleep Bruxism / Q000453:epidemiology* / Q000523:psychology*; D011795:Surveys and Questionnaires