Prevalence of dental fluorosis in Curitiba, Brazil, in the years of 2006 and 2016 / Prevalência da fluorose dental em Curitiba, Brasil, nos anos de 2006 e 2016

Mariana Dalledone, Viviane de Souza Gubert Fruet, Débora Fachinelli Nishi de Souza, Fernanda Mara de Paiva Bertoli, Giovana Daniela Percharki, Juliana Feltrin Souza, Paula Cristina Trevilatto, Marilisa Carneiro Leão Gabardo, Samuel Jorge Moysés, João Armando Brancher

Abstract


Objective. The objective of this study was to describe the prevalence of dental fluorosis (DF) in 12-year-old schoolchildren from Curitiba, Brazil, in the years of 2006 and 2016.

Methods. Participants were randomly selected from municipal, state and private schools. Schoolchildren were randomly chosen from within the Health Districts (HD), and thus a total of 679 and 934 participated in the years of 2006 and 2016 respectively. They were examined and their DF was classified according to the modified Dean index. The data were analyzed to determine distribution and the Chi-square test was used to search for associations between the outcome (DF) and the dependent variables (gender and HD), using SPSS, version 21.0.

Results. There was an overall decrease in DF cases from 27.7% to 17.0 % (OR = 1.83; 95% CI: 1.44 - 2.33) in the period analyzed. There was an increase in cases of moderate DF from 16.5% in 2006 to 20.5% in 2016 however, without statistical significance (OR = 0.76; 95% CI: 0.44 - 1.31). When the variables gender and HD were included in the bivariate analysis, they presented no significant association with the outcome (p> 0.05).

Conclusions. The decrease in the prevalence of DF was significant in the period, although the values remained high, and that the dependent variables were not significantly associated with the outcome.

 


Keywords


epidemiology, dental fluorosis, prevalence stud

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DOI: https://doi.org/10.34119/bjhrv4n1-018

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