Dental fluorosis: prevalence and associated factors in 12-year-old schoolchildren in Goiânia, Goiás
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2015-09
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Resumo
Objective: To describe the prevalence of dental fluorosis, to investigate its association with
individual and contextual variables among 12-year-old schoolchildren, and to determine whether there were
changes in the prevalence of this condition from 2003 to 2010. Methods: This cross-sectional study used data
from an oral health survey carried out in Goiânia, Goiás, in 2010 (n = 2,075), and secondary data from the
files of the local health authority. Clinical data were collected through oral examinations in public and private
schools. The dependent variable was the presence of dental fluorosis, assessed using the Dean Index. The
independent individual variables were sociodemographic characteristics (the child’s gender and race, and
the mother’s level of schooling) and those related to clinical conditions (caries experience, evaluated using
Decayed, Missing, and Filled teeth index; and presence of periodontal calculus and/or bleeding, evaluated
using Community Periodontal Index). The contextual variables were linked to the school (type and existence
of toothbrushing program) and its geographic location in the city’s health districts. The Rao-Scott test was
performed, and the percentage difference between the prevalences in the period from 2003 to 2010 was
calculated. Results: The prevalence of dental fluorosis in 2010 was 18.7%, being distributed as very mild (11.2%),
mild (4.4%), moderate (2.6%), and severe (0.5%). No significant association was found between prevalence of
dental fluorosis and the investigated variables. The prevalence of fluorosis increased 230% from 2003 to 2010,
and such difference was significant. Conclusions: The prevalence of dental fluorosis was low, predominantly
of the very mild degree, has increased over a 7-year period, and was not associated with the individual or
contextual factors studied.
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Epidemiologia, Epidemiology, Fluorose dentária, Inquéritos de saúde bucal, Criança, Saúde bucal, Fluoretação, Fluorosis, dental, Child, Dental health surveys, Oral health, Fluoridation
Citação
JORDÃO, Lidia Moraes Ribeiro et al. Dental fluorosis: prevalence and associated factors in 12-year-old schoolchildren in Goiânia, Goiás. Revista Brasileira de Epidemiologia, São Paulo, v. 18, n. 3, p. 568-577, 2015.