title: Influence of traumatic dental injury on quality of life of Brazilian preschool children and their families.
abstract: OBJECTIVE
  The aim of this study was to evaluate the impact of traumatic dental injury (TDI) on the oral health-related quality of life (OHRQoL) of Brazilian preschool children and their families.
  
  
  METHODS
  A cross-sectional study was carried out with 1632 children of both sexes aged 60-71 months in the city of Belo Horizonte, Brazil. Data on OHRQoL were collected using the Brazilian version of the Early Childhood Oral Health Impact Scale (B-ECOHIS), which was self-administered by parents/caregivers to record their perceptions regarding the oral health of their children. A questionnaire addressing demographic and socio-economic data was also sent to parents/caregivers. Oral examinations of the children were performed by a single, previously calibrated dentist (intraexaminer and interexaminer agreement: kappa ≥ 0.83) for the assessment of the prevalence and type of TDI using the diagnostic criteria proposed by Andreasen et al. [2007]. Bivariate and multiple Poisson regression analyses were performed, with the level of significance set at 5%.
  
  
  RESULTS
  The prevalence of negative impact from oral conditions on quality of life was 36.8% and 31.4% for children and families, respectively. TDI was not significantly associated with OHRQoL. Tooth avulsion remained in final multiple models of child OHRQoL [PR = 1.37, 95%CI = 1.02-1.85] and family OHRQoL [PR = 1.55, 95%CI = 1.12-2.14]. Tooth discolouration remained in the final multiple models of family OHRQoL [PR = 1.23, 95%CI = 1.05-1.44].
  
  
  CONCLUSIONS
  The presence of TDI in Brazilian preschool children has no impact on quality of life of the children or their families. However, tooth avulsion is associated with a negative impact on OHRQoL in both groups, and tooth discolouration is associated with a negative impact on family OHRQoL.
authors: Department of Paediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
authors: Cláudia Marina
authors: CM
authors: Viegas
authors: Department of Paediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
authors: Saul Martins
authors: SM
authors: Paiva
authors: Department of Paediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
authors: Anita Cruz
authors: AC
authors: Carvalho
authors: Department of Paediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
authors: Ana Carolina
authors: AC
authors: Scarpelli
authors: Department of Stomatology, School of Dentistry, Universidade Federal do Paraná, Curitiba, Brazil.
authors: Fernanda Morais
authors: FM
authors: Ferreira
authors: Department of Paediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
authors: Isabela Almeida
authors: IA
authors: Pordeus
mesh_terms: D001938:Brazil; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D011788:Quality of Life; D018677:Tooth Injuries / Q000503:physiopathology*; D014947:Wounds and Injuries / Q000503:physiopathology*
keywords: oral health; primary tooth; quality of life; tooth injury