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.

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.

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.

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.
References in periodicals archive ?
Therefore, CS was incorporated into RBCs to determine its in vitro antibacterial activity against S.
The experimental RBCs containing CS did not show growth inhibition zone around lawn growth of S.
Review of literature showed Chlorhexidine decreased oral S.
5,10 There are some reports of antimicrobial effects of Persica on oral S.
A US study showed that there was positive correlation between the concentration of S.
The current study was conducted to evaluate antimicrobial properties of several concentrations of these mouthwashes on oral S.
The experimental study was conducted in the Department of Microbiology, Shiraz Medicine School in 2011, using standard species of S.
Chlorhexidine, Oral B and Irsha mouthwashes inhibited S.
The herbal mouthrinse showed more antimicrobial activities than essential oil mouthrinse against S.
Another study evaluated bactericidal effect of essential oil- containing mouthwash (Listerine) on S.
In our study different concentration of mouthwashes were tested on oral S.
mutansen cuatro sitios de muestreo (saliva, dorso de la lengua, mucosa alveolar y biopelicula dental) de ninos parece ser homogenea, sin embargo, la biopelicula dental es un lugar muy importante dado el gran numero de genotipos de S.