title: Traumatic anterior dental injuries in 7- to 12-year-old Brazilian children.
abstract: The aim of this study was to determine the prevalence and risk factors of dental trauma in the permanent anterior teeth of schoolchildren in Campina Grande, Brazil. A sample of 448 schoolchildren, 228 boys and 220 girls, aged 7-12 years, were randomly selected from 17 public schools in an urban area. The sample selection was carried out in two stages: first, schools were selected by simple sampling and then children were chosen using a proportionality coefficient. Data were collected through clinical examinations and interviews, after examiner calibration. Overjet (OJ) was considered a risk factor when it presented values higher than 3 mm, while lip coverage was classified as adequate or inadequate. Yates' chi-squared test verified the association between the variables and odds ratio. Significance level was set at 5%. The prevalence of dental injuries was 21%. Boys experienced more injuries than girls, 21.9% and 20%, respectively (P > 0.05). Falls and collisions were the main causes of dental trauma, 63.8% and 24.5%, respectively. There was a statistically significant difference between traumatic dental injuries (TDI) and OJ (95% CI 0.22-0.63) (P < 0.001) and between TDI and inadequate lip coverage (95% CI 9.16-34.93) (P < 0.001). Data indicated that boys presenting an OJ size >3 mm and inadequate lip coverage were more likely to have TDI in Campina Grande, Brazil.
authors.affiliation: Department of Social Dentistry, State University of Paraíba, Campina Grande, Paraíba, Brazil. dralessandro@ibest.com.br
authors.forename: Alessandro Leite
authors.initials: AL
authors.lastname: Cavalcanti
authors.forename: Priscilla Kelly Medeiros
authors.initials: PK
authors.lastname: Bezerra
authors.forename: Catarina Ribeiro Barros
authors.initials: CR
authors.lastname: de Alencar
authors.forename: Cristiano
authors.initials: C
authors.lastname: Moura
mesh_terms: D001938:Brazil / Q000453:epidemiology; D016009:Chi-Square Distribution; D002648:Child; D015897:Comorbidity; D003753:Dental Health Surveys; D019229:Dentition, Permanent; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000453:epidemiology*; D015995:Prevalence; D012307:Risk Factors; D017678:Sex Distribution; D014082:Tooth Fractures / Q000453:epidemiology; D018677:Tooth Injuries / Q000145:classification / Q000453:epidemiology*