Malocclusion in preschool children: prevalence and determinant factors
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To evaluate the prevalence of malocclusion and associated factors in the primary dentition of preschoolers in the city of Diamantina, Brazil.
A cross-sectional study was carried out with 381 children aged 3–5 years treated at the 10 basic health care units in the city during immunisation campaigns. The dependent variables (presence of malocclusion, open bite, crossbite and crowding) were evaluated through a clinical oral exam. The independent variables (gender, age, health problems, breastfeeding, bottle feeding, harmful oral habits, mother’s schooling, household income and number of children in the home) were collected through interviews. Statistical analysis involved descriptive analysis, Chi square test and Poisson regression.
The prevalence of malocclusion was 32.5 %. Open bite was the most frequent type of malocclusion. Children with a history of bottle feeding (PR 1.74; 95 % CI 1.24–2.44) and those with harmful oral habits (PR 1.49; 95 % CI 1.23–1.99) had greater prevalence rates of malocclusion. Greater prevalence rates of open bite were also found in children with a history of bottle feeding (PR 5.00; 95 % CI 1.99–12.5) and those with harmful oral habits (PR 2.90; 95 % CI 1.59–5.29), whereas greater prevalence rates of crossbite were found in boys (PR 1.79; 95 % CI 1.10–2.91) and were associated with mother’s schooling (PR 1.91; 95 % CI 1.20–3.06).
A history of bottle feeding and the presence of harmful oral habits were identified as determinants for the occurrence of malocclusion in preschoolers.
KeywordsMalocclusion Primary teeth Epidemiology
Conflict of interest
The authors declare that they have no conflict of interest.
- Caglar E, Larsson E, Andersson EM, et al. Feeding, artificial sucking habits, and malocclusions in 3-year-old girls in different regions of the world. J Dent Child. 2005;72:25–30.Google Scholar
- Carvalho AC, Paiva SM, Scarpelli AC, et al. Prevalence of malocclusion in primary dentition in a population-based sample of Brazilian preschool children. Eur Dent Paediatr Dent. 2011;12:107–11.Google Scholar
- Kramer PF, Feldens CA, Helena Ferreira S, et al. Exploring the impact of oral diseases and disorders on quality of life of preschool children. Community Dent Oral Epidemiol. 2013 Jan 21 [Epub ahead of print].Google Scholar
- Marques LS, Barbosa CC, Ramos-Jorge ML, Pordeus IA, Paiva SM. Malocclusion prevalence and orthodontic treatment need in 10–14-year-old schoolchildren in Belo Horizonte, Minas Gerais: a psychosocial focus. Cad Saude Publica. 2005;21:1099–106 [Article in Portuguese].Google Scholar
- Oliveira AC, Paiva SM, Campos MR, Czeresnia D. Factors associated with malocclusions in children and adolescents with Down syndrome. Am J Orthod Dentofacial Orthop. 2008;133:489.e1–8.Google Scholar
- WHO: oral health surveys—basic methods. 4th edn. Geneva: World Health Organization, 1997.Google Scholar
- Wood AWS. Anterior and posterior crossbites. J Dent Child. 1962;29:280–6.Google Scholar