[Preliminary screen of high cariogenicity Streptococcus mutans strains isolated from clinical specimens].
Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology(2013)
摘要
OBJECTIVE:To screen of high cariogenicity Streptococcus mutans (S. mutans) strains isolated from clinical specimens preliminary.
METHODS:Acidogenicity, aciduricity, extracellular polysaccharide production and adhesion of 41 strains of S. mutans isolated from clinical specimens were investigated to screen high cariogenicity S. mutans strains.
RESULTS:There were different cariogenicity among 41 strains of S. mutans, in which 3 strains of S. mutans had all high ability to produce extracellular polysaccharide, adhere to the saliva-coated hydroxyapatite, produce acid and tolerate acid, indicated there were 3 strains with high cariogenicity S. mutans strains isolated from clinical specimens. Another 3 strains of S. mutans with all low ability to produce extracellular polysaccharide, adhere to the saliva-coated hydroxyapatite, produce acid and tolerate acid indicated they were low cariogenicity S. mutans strains isolated from clinical specimens.
CONCLUSION:We may have obtained high cariogenicity S. mutans strains isolated from clinical specimens.
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关键词
acidogenicity,extracellular polysaccharide,streptococcus mutans,adhesion,screen,aciduricity
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