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KMID : 0355519860100020107
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Korean Journal of Oral Biology
1986 Volume.10 No. 2 p.107 ~ p.115
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A STUDY ON THE ADHERENCE TO HYDROXYAPATITE, HEMAGGLUTINATION, AND SALIVARY AGGLUTINATION OF ORAL STREPTOCOCCI
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Abstract
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As a part of a series of investigation on the mechanisms of adherence to tooth and oral soft tissues by Streptococcus mutans and S. sanguis, the two important microorganisms of oral streptococci, a study was carried out to screen laboratory strains and fresh isolates of both S. mutans and S. sanguis in terms of their adherence to the salivacoated hydroxyapatite, hemagglutination, and salivary agglutination.
The following data were obtained.
a. The adherence of S. mutans strains to hydroxyapatite was inhibited by saliva, whereas saliva enhanced the adherence to hydroxyapatite of most of the S. sanguis strains tested. S. sanguis strain 66X49 was shown to have a property to adhere well to hydroxyapatite even in the absence of saliva, whereas the S1 strain, one of fresh S. sanguis isolates was identified as a bacterium whose adherence was strongly enhanced by saliva.
b. Many more strains of S. mutans showed positive hemagglutination reaction compared to the strains of S. sanguis. Among the positive strains, S. mutans M5 and S. sanguis S5 showed the highest hemagglutination titers.
c. Salivary agglutination reactions were positive in all of the strains tested, and those strains which showed the highest agglutination titers were S. mutans OMZ175 and M2, S. sanguis MPC1 and 66X49.
d. No correlation in 3 reactions was observed among the bacterial strains tested.
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