Streptococcus mutans

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Streptococcus

 [strep″to-kok´us]
a genus of gram-positive, facultatively aerobic cocci (family Streptococcaceae) occurring in pairs or chains. It is separable into the pyogenic group, the viridans group, the enterococcus group, and the lactic group. The first group includes the beta-hemolytic human and animal pathogens; the second and third include alpha-hemolytic parasitic forms occurring as normal flora in the upper respiratory tract and the intestinal tract, respectively; and the fourth is made up of saprophytic forms.
Streptococcus mu´tans a species implicated in dental caries.
Streptococcus pneumo´niae a small, slightly elongated, encapsulated coccus, one end of which is pointed or lance-shaped; the organisms commonly occur in pairs. This is the most common cause of lobar pneumonia, and it also causes serious forms of meningitis, septicemia, empyema, and peritonitis. There are some 80 serotypes distinguished by the polysaccharide hapten of the capsular substance. Called also pneumococcus.
Streptococcus pyo´genes a beta-hemolytic, toxigenic, pyogenic species that causes septic sore throat, scarlet fever, rheumatic fever, puerperal fever, acute glomerulonephritis, and other conditions in humans.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

Strep·to·coc·cus mu·tans

a bacterial species associated with the production of dental caries in humans and in some other animals and with subacute endocarditis.
Farlex Partner Medical Dictionary © Farlex 2012

Strep·to·coc·cus mu·tans

(strep'tō-kok'ŭs myū'tanz)
A bacterial species associated with the production of dental caries in humans and in some other animals and with subacute endocarditis.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Strep·to·coc·cus mu·tans

(strep'tō-kok'ŭs myū'tanz)
A bacterial species associated with the production of dental caries in humans and with subacute endocarditis.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Hence, further research is needed to check the efficacy of tea leaves' extracts against S.mutans.
(18), found complete inhibition of S.mutans growth after a 1-minute application even after a follow up of 8 weeks; however, the method showed limited effect on L.casei.
Chitosan (CS) inhibits the growth of Streptococcus mutans (S.mutans); which is most frequently caries causing bacteria.
The experimental RBCs containing CS did not show growth inhibition zone around lawn growth of S.mutans compared to control group.
A study evaluated the antiseptic effect of essential oil containing mouthwash (Listerine) on Streptococcus mutans (S.mutans).
It is safe for children and pregnant women.5,10 There are some reports of antimicrobial effects of Persica on oral S.mutans.5,6,11
S.mutans is a facultative anaerobiccoccus-shaped, gram- positive bacteria commonly found in the oral cavity and has a major role in tooth decay formation.
A US study showed that there was positive correlation between the concentration of S.mutans in saliva and its isolation from the smooth surface of the teeth; on the other hand there was no positive relation.17
The current study was conducted to evaluate antimicrobial properties of several concentrations of these mouthwashes on oral S.mutans and E.coli.
S.mutans biofilm model to evaluate antimicrobial substances and enamel demineralization.