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Effects of Community Water Fluoridation on Dental Caries Disparities in Adolescents

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  • Go Matsuo

    (Department of International and Community Oral Health, Tohoku University Graduate School of Dentistry, Sendai 9800872, Miyagi, Japan)

  • Jun Aida

    (Department of International and Community Oral Health, Tohoku University Graduate School of Dentistry, Sendai 9800872, Miyagi, Japan)

  • Ken Osaka

    (Department of International and Community Oral Health, Tohoku University Graduate School of Dentistry, Sendai 9800872, Miyagi, Japan)

  • Richard Gary Rozier

    (Department of Health Policy and Management, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7400, USA)

Abstract

Despite improvements in the prevalence of dental caries, disparities are still observed globally and in the U.S. This study examined whether community water fluoridation (CWF) reduced dental caries disparities in permanent teeth of 10- to 19-year-old schoolchildren in North Carolina. We used cross-sectional data representing K-12 schoolchildren in North Carolina (NC) public schools. A poisson regression model was used to determine whether the association between children’s parental educational attainment and the prevalence of dental caries of children differed by children’s lifetime CWF exposure. We analyzed data on 2075 students. Among the children without any CWF exposure in their life, statistically significant caries disparities by parental educational attainment were observed. Compared to the children of parents with more than high school education, the relative risk for those with a parent with a high school education was 1.16 (95% CI = 1.01, 1.33) and those with less than a high school education was 1.27 (95% CI = 1.02, 1.60). In contrast, these disparities were not observed among children exposed to CWF throughout their lives. Socioeconomic disparities in dental caries were not observed among 10–19-year-old schoolchildren with lifetime CWF exposure. CWF seemed to reduce dental caries disparities.

Suggested Citation

  • Go Matsuo & Jun Aida & Ken Osaka & Richard Gary Rozier, 2020. "Effects of Community Water Fluoridation on Dental Caries Disparities in Adolescents," IJERPH, MDPI, vol. 17(6), pages 1-11, March.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:6:p:2020-:d:334200
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    References listed on IDEAS

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    1. Frieden, T.R., 2010. "A framework for public health action: The health impact pyramid," American Journal of Public Health, American Public Health Association, vol. 100(4), pages 590-595.
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    1. Anqi Shen & Eduardo Bernabé & Wael Sabbah, 2021. "Systematic Review of Intervention Studies Aiming at Reducing Inequality in Dental Caries among Children," IJERPH, MDPI, vol. 18(3), pages 1-11, February.

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