title: Prevalence of dental trauma and associated factors among 1- to 4-year-old children.
abstract: OBJECTIVE
  The purpose of this study was to estimate the prevalence of dental trauma among 1- to 4-year-old children and test the association between dental trauma and demographic, socioeconomic, and clinical factors.
  
  
  METHODS
  Five calibrated researchers (intra- and  interexaminer kappa values=0.89 and 0.81, respectively) examined a representative sample of 407 children in the city of Matozinhos, Minas Gerais, Brazil, during the 2008 national vaccination campaign. Statistical analysis was performed via descriptive analysis, chi-square test (P<.05),  and logistic regression.
  
  
  RESULTS
  The prevalence of dental trauma was 47%; among the 407 children examined, 187 had suffered dental trauma. The most prevalent type of alteration due to dental trauma was enamel fracture (85%), followed by enamel-dentin fracture without pulp exposure  (11%) and enamel-dentin fracture with pulp exposure (3%). The main location where the trauma occurred was at home (89%), with the cause reported by parents as accidents while running, playing, or crawling (79%). After adjusting for the variables, the child's age (P>.01) and number  of siblings (P>.01) remained associated with the outcome.
  
  
  CONCLUSIONS
  Results indicate the need for public health policies that include dental trauma as one of the priorities directed at young children.
authors: Specialists in Collective Oral Health, School of Dentistry, Universidade Federal de Minas Gerais.
authors: Flávia Torquato
authors: FT
authors: Dutra
authors: Angélica Maria
authors: AM
authors: Marinho
authors: Pollyana Furrier Sad
authors: PF
authors: Godoi
authors: Carolina Marques
authors: CM
authors: Borges
authors: Efigênia Ferreira E
authors: EF
authors: Ferreira
authors: Patrícia Maria
authors: PM
authors: Zarzar
mesh_terms: D001938:Brazil / Q000453:epidemiology; D016009:Chi-Square Distribution; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007223:Infant; D016015:Logistic Models; D008297:Male; D015995:Prevalence; D012307:Risk Factors; D012923:Social Class; D018677:Tooth Injuries / Q000453:epidemiology*; D014094:Tooth, Deciduous