Prevalence and Associated Factors of Dental Trauma in Six-Year-Old School-Children

Objective: To estimate the prevalence and associated factors of dental trauma in 6-year-old school children in the city of Palhoça, Brazil. Material and Methods: Cross-sectional study nested in a cohort study. It involved a representative sample of school children born in 2009, residing in the municipality and regularly enrolled in public and private schools (n = 1,102). Clinical data were obtained through oral exams. To evaluate the incisal overjet, the distance in millimeters was measured horizontally from the labial surface of the lower central incisor to the labial surface of the upper incisor. Bivariate analyses were performed using the Chi-square test, with a p-value <0.05 considered statistically significant. Multivariate analyses using Poisson Regression were performed to identify independent associations between the prevalence and the independent variables studied. Results: Prevalence of dental trauma was 4.2% (95% CI 3.0-5.4). Dental trauma was statistically associated with studying in a private school (PR = 1.03; 95% CI 1.01-1.06) (p=0.016) and with inadequate lip coverage (PR = 1.08; 95% CI 1.01-1.14) (p=0.016). Conclusion: The prevalence of 4.2% of dental trauma in six-year-old children, associated with inadequate and greater lip coverage in children from private schools should be taken into account, since most teeth at this stage are newly erupted

Prevalence and Associated Factors of Dental Trauma in Six-Year-Old School-Children

Objective: To estimate the prevalence and associated factors of dental trauma in 6-year-old school children in the city of Palhoça, Brazil. Material and Methods: Cross-sectional study nested in a cohort study. It involved a representative sample of school children born in 2009, residing in the municipality and regularly enrolled in public and private schools (n = 1,102). Clinical data were obtained through oral exams. To evaluate the incisal overjet, the distance in millimeters was measured horizontally from the labial surface of the lower central incisor to the labial surface of the upper incisor. Bivariate analyses were performed using the Chi-square test, with a p-value <0.05 considered statistically significant. Multivariate analyses using Poisson Regression were performed to identify independent associations between the prevalence and the independent variables studied. Results: Prevalence of dental trauma was 4.2% (95% CI 3.0-5.4). Dental trauma was statistically associated with studying in a private school (PR = 1.03; 95% CI 1.01-1.06) (p=0.016) and with inadequate lip coverage (PR = 1.08; 95% CI 1.01-1.14) (p=0.016). Conclusion: The prevalence of 4.2% of dental trauma in six-year-old children, associated with inadequate and greater lip coverage in children from private schools should be taken into account, since most teeth at this stage are newly erupted

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

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 Palhoça/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 Palhoça/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.O traumatismo dentário ocorre em todas as faixas etárias, porém atinge principalmente crianças e adolescentes, com alta e crescente prevalência. Há, todavia poucos estudos sobre sua ocorrência na idade de seis anos, portanto, crianças no início da dentição mista. O objetivo desse estudo foi estimar a prevalência e fatores associados ao traumatismo dentário em escolares de 6 anos de idade do município de Palhoça/SC. Tratou-se de um estudo transversal aninhado a um estudo de coorte conduzido pelo Programa de Pós-Graduação em Ciências da Saúde da Universidade do Sul de Santa Catarina, denominado Coorte Brasil Sul. Foram utilizados dados da referida coorte, envolvendo uma amostra representativa de escolares nascidos no ano de 2009, residentes no município e regularmente matriculados nas escolas públicas e privadas (n = 1.102). Os critérios de classificação do traumatismo dentário foram aqueles utilizados no estudo nacional SB Brasil 2010, adaptando índices alfabéticos à mesma tipologia do traumatismo em dentes permanentes. Análises multivariadas do meio de Regressão de Poisson foram realizadas para identificar associações independentes entre a prevalência do traumatismo dentário e as variáveis independente estudadas. A prevalência de traumatismo dentário encontrada foi de 4,2% (IC 95% 3,0; 5,4). Tal prevalência mostrou-se estatisticamente associada com estudar em escola privada [RP = 1,03 (IC 95% 1,01; 1,06)] (p = 0,016) e com cobertura labial inadequada [RP = 1,08 (IC 95% 1,01; 1,14)] (p = 0,016). Pode-se concluir que a prevalência de traumatismo dentário em escolares de seis anos de idade de Palhoça/SC foi de 4,2% e mostrou-se estatisticamente associada ao overjet incisal > 3mm e à cobertura labial inadequada, além do fato de estudar em escolas privadas. Gênero não apresentou associação estatisticamente significativa ao traumatismo dentário