Prevalence of black tooth stains and dental caries in Brazilian schoolchildren.
This study evaluated the correlation between the presence of black extrinsic tooth stains and caries in Brazilian schoolchildren. The target population consisted of 263 children aged 6-12 years. Clinical examinations were performed by four dentists calibrated for the World Health Organization criteria for caries diagnosis. The c(2) test was used to compare the prevalence of caries between groups of children with and without black tooth stains. Spearman's correlation test was used to analyze the relationship between the presence of black stains and caries severity. Black stains were observed in 14.8% of the children. The number of children with caries-free permanent dentition was not statistically different between groups. The mean DMF-T was 1.46 +/- 1.39 for children with black stains and 2.42 +/- 2.09 for children without black stains. A negative correlation was observed between the presence (r = -0.16; p<0.05) and severity (r = -0.15; p<0.01) of black stains and DMF-T.
Gasparetto
André
A
School of Dentistry, State University of Maringá, Maringá, PR, Brazil.
Conrado
Carlos Alberto
CA
Maciel
Sandra Mara
SM
Miyamoto
Ernesto Yiokihiro
EY
Chicarelli
Mariliane
M
Zanata
Régia Luzia
RL
D001938:Brazil / Q000453:epidemiology; D002648:Child; D004245:DMF Index; D003731:Dental Caries / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D012423:Rural Health / Q000706:statistics & numerical data; D014075:Tooth Discoloration / Q000145:classification / Q000453:epidemiology*