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Dental caries, mutans streptococci, lactobacilli, and saliva secretion rate in adults
Author(s) -
Klock Björn,
Svanberg Mona,
Petersson Lars Gustav
Publication year - 1990
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.1600-0528.1990.tb00069.x
Subject(s) - saliva , medicine , streptococcus mutans , root caries , dentistry , age groups , significant difference , microbiology and biotechnology , bacteria , biology , genetics , demography , sociology
In 718 Swedish patients, equally divided into four age groups (19–25, 26–45, 46–60, > 60 yr), salivary levels of mutans streptococci and lactobacilli, saliva secretion rate, and DMFS were registered. No significant differences were found between the various age groups either in salivary factors or in caries (D). Number of missing (M) and filled (F) surfaces increased with age. Prevalence of root caries, which increased with age, was significantly correlated to number of exposed root surfaces independent of age. Of the total study group, 50% had 10 6 mutans streptococci and 40% had 10 5 lactobacilli per mL saliva. Three percent had a saliva secretion rate of 0.5 mL/min. Correlation analyses showed that both mutans streptococci and lactobacilli significantly correlated to the caries prevalence but the r‐value never exceeded 0.34.