[Dental fluorosis in schoolchildren 12 and 15 years of age in Salvador, Bahia, Brazil, in 2001 and 2004].
This article compares the results of two surveys in Salvador, Bahia State, Brazil, on prevalence and severity of dental fluorosis in 12 and 15-year-olds. The article discusses the survey methodologies in relation to their sampling process, calibration of examiners, and data collection procedures, comparing the resulting differences using chi-square and 95% confidence intervals obtained with the Dean index. A total of 3,313 adolescents 12 and 15 years of age were analyzed in 2001 and 1,032 in 2004. Both surveys used examiner calibration, and the samples were population-based. In the second survey there were a higher proportion of students from public schools for both ages, as compared to 2001 (p < 0.001). There was no significant difference in the fluorosis rate at 12 years, with a prevalence of 32.64% in 2004 and 31.4% in 2001. For 15-year-olds, the prevalence in 2004 (16.83%) was lower than in 2001 (27.6%). No increase was observed in the prevalence or severity of fluorosis in Salvador from 2001 to 2004.
Oliveira Junior
Saulo Regis de
SR
Faculdade de Odontologia, Universidade Federal da Bahia, Salvador, Brazil.
Cangussu
Maria Cristina Teixeira
MC
Lopes
Laíra Sá
LS
Soares
Ana Prates
AP
Ribeiro
Adriana de Andrade
Ade A
Fonseca
Lis de Amorim
Lde A
D000293:Adolescent; D017677:Age Distribution; D001938:Brazil / Q000453:epidemiology; D002138:Calibration; D016009:Chi-Square Distribution; D002648:Child; D016001:Confidence Intervals; D005260:Female; D005457:Fluoridation; D009050:Fluorosis, Dental / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D008297:Male; D015588:Observer Variation; D009909:Oral Health; D015995:Prevalence; D017678:Sex Distribution