Factors Associated With The Prevalence Of Anterior Open Bite Among Preschool Children: A Population-based Study In Brazil

Introduction: The aim of this study was to identify factors associated with the prevalence of anterior open bite among five-year-old Brazilian children.Methods: A cross-sectional study was undertaken using data from the National Survey of Oral Health (SB Brazil 2010). The outcome variable was anterior open bite classified as present or absent. The independent variables were classified by individual, sociodemographic and clinical factors. Data were analyzed through bivariate and multivariate analysis using SPSS statistical software (version 18.0) with a 95% level of significance.Results: The prevalence of anterior open bite was 12.1%. Multivariate analysis showed that preschool children living in Southern Brazil had an increased chance of 1.8 more times of having anterior open bite (CI 95%: 1.16 - 3.02). Children identified with alterations in overjet had 14.6 times greater chances of having anterior open bite (CI 95%: 8.98 - 24.03).Conclusion: There was a significant association between anterior open bite and the region of Brazil where the children lived, the presence of altered overjet and the prevalence of posterior crossbite.195103109Brasil. Ministério da Saúde, (2004) Projeto SB Brasil 2003: Condições de saúde bucal da população brasileira 2002-2003., , http://portalweb02.saude.gov.br/portal/arquivos/pdf/relatorio_brasil_sorridente.pdf, Secretaria de Atenção à Saúde. Resultados principais. Brasília, DF: Ministério da Saúde[Acesso em: 2012 Jul. 12]Brasil. Ministério da Saúde, (2011) Coordenação Nacional de Saúde Bucal., , http://dab.saude.gov.br/cnsb/sbbrasil/download.htm, Secretaria de Vigilância em Saúde. Secretaria de Atenção à Saúde. SB2010. Pesquisa Nacional de Saúde Bucal. Resultados principais. 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