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Dental caries and mutans streptococci in selected groups of urban and native Indian schoolchildren in Mexico
Author(s) -
Rio Gomez Illiana
Publication year - 1991
Publication title -
community dentistry and oral epidemiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 101
eISSN - 1600-0528
pISSN - 0301-5661
DOI - 10.1111/j.1600-0528.1991.tb00119.x
Subject(s) - streptococcus mutans , medicine , streptococcus sobrinus , saliva , serotype , significant difference , population , dentistry , environmental health , bacteria , biology , virology , genetics
Two groups of Mexican children aged 12–14 yr were examined for dental caries and salivary mutans streptococci counts. One hundred lived in Mexico City and 100 belonged to a native Mazahua Indian population. The prevalence of caries, diagnosed according to WHO, was 90% in Mexico City and 82% in the Indian community. Mean DM FT was 5.98 and 3.57 respectively. Saliva samples were analyzed for mutans streptococci by the “Strip mutans” method. Further identification of the biotype/serotype was done. Mutans streptococci were found in 95% of the urban children and 75% of the Indians. There was a statistically significant difference in the prevalence of mutans streptococci between the city and the rural samples. Streptococcus mutans was more frequently found than Streptococcus sobrinus .