Prevalence and etiology of dental trauma in schoolchildren aged 6 to 12 years

  • Ana de Lourdes Sá de Lira
  • Luís Paulo da Silva Dias
  • Cassius Wander Coelho Martins
  • Tito Cacau Sousa Santos


Aim: To investigate the prevalence and etiological factors of dental trauma in school-age children aged 6 to 12 years.Methods: A study was developed in children and adolescents between the ages of 6 and 12 of both genders enrolled in 3 municipal public schools. An oral examination of the permanent or deciduous incisors was performed, if they were still present in the oral cavity, to evaluate the presence of dental trauma, need for treatment and sequels, and the method ofexamination and classification of dental trauma of O’Brien.Results: The prevalence of dental trauma was 4.03% (n=29).The most verified traumas were enamel crack / enamel fractureand enamel / dentin fracture without pulp exposure. It was observed that the most affected teeth were the permanent upper central incisors and the age at which trauma was most observed was 11 years, the main etiological factor was fall from a height, in 65.3% of schoolchildren (n=19). Conclusion: The prevalence of dental trauma was 4.03%, with no statisticallysignificant difference between genders. The permanentright upper central incisor was the most affected, occurring predominantly at home and at school. The dissemination of information about dental trauma and emergency protocols to parents and teachers need to be encouraged.



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How to Cite
DE LIRA, Ana de Lourdes Sá et al. Prevalence and etiology of dental trauma in schoolchildren aged 6 to 12 years. Brazilian Journal of Oral Sciences, [S.l.], p. e18082, aug. 2018. ISSN 1677-3225. Available at: <>. Date accessed: 20 july 2019. doi:
Original Research

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