Effect of dark discolouration and enamel/dentine fracture on the oral health-related quality of life of pre-schoolers
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To determine the effect of different types of dental trauma on oral health-related quality of life (OHRQoL) among pre-school children.
Four hundred fifty-nine Brazilian pre-schoolers aged 3–5 years were submitted to an oral examination in the school environment for the evaluation of dental trauma using the criteria proposed by Andreasen et al. (2007). Parents answered a questionnaire on the OHRQoL of the children using the Early Childhood Oral Health Impact Scale (ECOHIS) and another one on socio-demographic characteristics of the children and their families. The questionnaires were sent to the parents to be answered at home. Descriptive statistics, Mann–Whitney test and Poisson regression were used for statistical analysis.
Children with dark discolouration and enamel–dentine fracture without pulp exposure had higher mean ECOHIS scores than those without these alterations. The multivariate regression analysis demonstrated that pre-school children with dark discolouration (PR 1.79; 95% CI 1.24–2.58) and enamel–dentine fracture without pulp exposure (PR 1.89; 95% CI 1.22–2.92) had a higher impact on quality of life than those without these alterations.
Dark discolouration and enamel–dentine fracture without pulp exposure were associated with a negative impact on the life of pre-schoolers.
KeywordsTooth injuries Incisor Pre-school children Quality of life
The National Council for Scientific and Technological Development (CNPq), State of Minas Gerais Research Foundation (FAPEMIG) and Coordination for Improvement of Higher Education Personnel (CAPES) supported this study.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.