Objective: to determine the effect of birth cohort on dental fluorosis in Mexican schoolchildren during the implementation of the national program to fluoridate domestic salt. Material and methods: in a cross-sectional study we examined 1,644 schoolchildren 6-13 years old born between 1985-1992 in Campeche, México a community where there is negligible naturally available fluoride in water supplies. Dental fluorosis was assessed with the Dean's index in the permanent dentition. Questionnaires were used to identify diverse socio-demographic and socio-economic variables. In the statistical analysis logistic regression was used. Results: the prevalence of fluorosis was 15.5%. In the multivariate model, we observed fluorosis was associated with larger family sizes (OR: 0.91; 95% CI: 0.84-0.99) and female sex (OR: 0.74; 95% CI: 0.57-0.98). Furthermore, using the cohort of 1985 as a comparison group, no significant dental fluorosis differences were found with those born between 1986-1987; in contrast, in the cohorts born between 1989-1992 the risk of dental fluorosis increased by almost four times (p < 0.05). Conclusion: the prevalence of fluorosis was low compared.
|Number of pages||9|
|Journal||Gaceta Medica de Mexico|
|State||Published - Mar 25 2013|
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