ArticleEpidemiology and health2022
Impact of water fluoridation on dental caries decline across racial and income subgroups of Brazilian adolescents.
Article in Epidemiology and health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.
- Water fluoridation for the prevention of dental caries.The Cochrane database of systematic reviews · 2024Pooled it
- Evolution of income inequalities in the caries experience of 5-year-old children in Brazil between 2010 and 2023.Revista brasileira de epidemiologia = Brazilian journal of epidemiology · 2026Article
- Water fluoridation, functional dentition and tooth loss in Brazilian adults: a multilevel analysis of SB Brasil 2023.Revista brasileira de epidemiologia = Brazilian journal of epidemiology · 2026Article
- Surveillance of public water supply fluoridation from the perspective of municipal health department technicians: a cross-sectional study, Goiás, 2022-2023.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2026Article
- Unhealthy dietary habits and sedentary behavior drive untreated dental caries among adolescents: A population-based study.Scientific reports · 2025Article
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
Abstract
objectivesThe aim of this study was to assess the impact of community water fluoridation (CWF) on differences in dental caries decline across racial and socioeconomic subgroups of Brazilian adolescents.
methodsTwo nationwide Brazilian population-based oral health surveys were used (Brazilian Oral Health Survey 2003 and 2010). In total, 7,198 adolescents from 15 years to 19 years old living in 50 cities investigated in both surveys were included. The mean numbers of untreated decayed teeth (DT) according to racial (Whites vs. Browns/Blacks) and socioeconomic subgroups (at or above the minimum wage per capita vs. under) were analysed. Difference-in-differences negative binomial regressions were adjusted by schooling, age, and sex. Decayed, missing, and filled teeth and DT prevalence, calculated as a categorical variable, were used in sensitivity analyses.
resultsThe adjusted difference of reduction in DT was similar across socioeconomic subgroups (β=-0.05; 95% confidence interval [CI], -0.45 to 0.35) and favoured, but not to a significant degree, Whites (β=-0.34; 95% CI, -0.74 to 0.04) compared to Brown/Blacks in fluoridated areas. In non-fluoridated areas, significant differences were observed in the mean number of DT, favouring the higher socioeconomic subgroup (β=-0.26; 95% CI, -0.53 to -0.01) and Whites (β=-0.40; 95% CI, -0.69 to -0.11) in relation to their counterparts. The sensitivity analyses confirmed the findings.
conclusionsThe similar reduction in DT across income subgroups suggests that CWF has had a beneficial effect on tackling income inequalities in dental caries within a 7-year timeframe.
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