Demography

Cohort

Dental trauma

Permanent dentition

Dentistry

Environmental health

Population

Internal medicine

Sociology

Dentition

Medicine

Poisson regression

Dental trauma happens in all age groups, however, it affects mainly children and adolescents, with high and increasing prevalence. There are, nonetheless, few studies about its occurrence in the six-year-old age group, thus, children in the beginning of mixed dentition. The objective of this study was to estimate the prevalence and factors associated to dental trauma in six-year-old schoolchildren from the city of Palhoca/SC. It was a transversal study nested in a cohort study conducted by the Post Graduation Program in Health Sciences at Universidade do Sul de Santa Catarina, called Coorte Brasil Sul. Data from the referred cohort were used, involving a representative sample of schoolchildren born in 2009, resident in the city and regularly enrolled in public and private schools (n = 1.102). The classification criteria of the dental trauma were those used in the SB Brasil 2010 nationwide study, adapting alphabetical indices to the same typology of trauma in permanent teeth. Multivariate analyses through Poisson Regression were carried out to identify independent associations between prevalence of dental trauma and the independent variables studied. The prevalence of dental trauma found was 4.2% (CI 95% 3.0; 5.4). Such prevalence turned up to be statistically associated to studying in a private school [PR = 1.03 (CI 95% 1.01; 1.06)] (p = 0.016) and to inadequate lip coverage [PR = 1.08 (CI 95% 1.01; 1.14)] (p = 0.016). It is possible to conclude that prevalence of dental trauma in six-year-old schoolchildren in Palhoca/SC was 4,2% and prevalence turned up to be statistically associated to overjet incisal > 3mm and inadequate lip coverage, besides the fact of studying in private schools. Gender did not present a statistically significant association to dental trauma.

Prevalência e fatores associados ao traumatismo dentário em escolares de seis anos de idade de Palhoça/ SC