Objetivo: avaliar a prevalência de traumatismo dentário e fatores associados em adolescentes de 15 a 19 anos da cidade do Recife/PE. Metodologia: a amostra foi composta por 148 adolescentes de ambos os sexos. Os dados foram coletados por meio de exames clínicos e entrevistas realizadas nos intervalos das aulas. Os testes Qui-quadrado de Pearson e Exato de Fisher foram utilizados para verificar a associação entre as variáveis. O nível de significância utilizado foi de 5%. A prevalência encontrada foi de aproximadamente 15%. Resultados: os dentes mais afetados foram os incisivos centrais superiores. A maioria dos adolescentes apresentou um único dente atingido por trauma. As principais causas de trauma dental foram: brincando com outras pessoas (45,5%) e quedas (18,2%). Não houve associação entre a presença de traumatismo dental e overjet acentuado e/ou cobertura labial inadequada. Não foi observada diferença estatística entre prevalência de traumatismo e o sexo dos adolescentes. O tipo de escola não foi associado à presença de traumatismo. Conclusão: a prevalência de traumatismo dental em adolescentes de 15 a 19 anos de idade da cidade do Recife foi relativamente alta, porém não foi observada associação entre overjet e cobertura labial. Traumatismo dentário, Adolescentes, Prevalência. Objective: To evaluate the prevalence of traumatic tooth injuries and associated factors in Adolescents aged 15 to 19 years in the city of Recife, PE, Brazil. Method: The sample consisted of 148 adolescents of both genders. Data were collected by clinical examinations and interviews conducted between classes. Pearson's chi-square and Fisher's exact tests were used to assess the association among the variables. The significance level was set at 5%. The prevalence was approximately 15%. Results: The most affected teeth were the maxillary central incisors. Most adolescents had a single hit tooth trauma. The main causes of dental trauma were playing with someone (45.5%) and falls (18.2%). There was no association between dental trauma and severe overjet and/or inadequate lip coverage. There was no statistically significant difference (p>0.05) between the prevalence of trauma and gender of the adolescents. The type of school was not associated with the presence of traumatic tooth injuries. Conclusion: The prevalence of dental trauma in adolescents aged 15 to 19 years in Recife was relatively high, but no association was found between overjet and lip coverage.
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