Tooth decay is the gradual breakdown of tooth components, resulting from loss hydroxyapatite crystals as part aging. Mutans Streptococci one species most associated with decay. The samples were isolated and cultured following standard procedures, results showed that Streptococcus mutans was indeed bacteria, accounting for 47 (85.5%) cases in people Small soft blue colonies S. bacteria appeared ...

The incidence of indifferent streptococci in the eyes of neonates less than 6 days old was investigated. The isolation of indifferent streptococci was significantly higher in infants with sticky eyes. Speciation using a shortened identification scheme was carried out on isolates; Streptococcus mitior and Streptococcus sanguis were the most common species in both purulent and non-infected eyes. ...

The purpose of this study was to investigate the effect of cranberry polyphenol fraction on mutans streptococci. Hydrophobicity is an important factor in the adherence of bacteria to the tooth surface. We found that cranberry polyphenol fraction significantly decreased the hydrophobicity of Streptococcus sobrinus 6715, Streptococcus mutans MT8148R and JC2 in a dose-dependent manner (p<0.05). Bi...

Objective To assess and compare dental caries experience and salivary S. mutans, S. sobrinus, and streptococci counts between groups of Down syndrome and non-Down syndrome children and adolescents. Material and Methods This study included a sample of 30 Down syndrome children and adolescents (G-DS) and 30 age- and sex-matched non-Down syndrome subjects (G-ND). Dental caries experience was est...

Streptococcus mutans JC 2 produced mainly lactate as a fermentation product when grown in nitrogen-limited continuous culture in the presence of an excess of glucose and produced formate, acetate, and ethanol, but no lactate, under glucose-limited conditions. The levels of lactate dehydrogenase (LDH) in these cultures were of the same order of magnitude, and the activity of LDH was completely d...

Recently, the in vitro physiological effects were studied of several sucrose substitutes and artificial sweeteners on growth pattern and acid production of 7 glucose-grown Streptococcus mutans strains 1, representing the 5 serological groups after Bratthall 2. It was found that out of several sweeteners saccharin is the only compound which, depending on its concentration (0.02 to 20.00 m g/m l)...

The FimA protein of Streptococcus parasanguis is a virulence factor in the rat model of endocarditis, and immunization with FimA protects rats against homologous bacterial challenge. Because FimA-like proteins are widespread among the oral streptococci, the leading cause of native valve endocarditis, we evaluated the ability of this vaccinogen to protect rats when challenged by other streptococ...

BACKGROUND AND OBJECTIVES The most prevalent and worldwide oral disease is dental caries that affects a significant proportion of the world population. There are some classical approaches for control, prevention and treatment of this pathologic condition; however, the results are still not completely successful. Therefore new methods are needed for better management of this important challenge....

Dental caries is an infectious and transmissible disease. The mutans streptococci (MS) are infectious agents most strongly associated with dental caries. Earlier studies demonstrated that infants acquire MS from their mothers and only after the eruption of primary teeth. More recent studies indicate that MS can colonize the mouths of predentate infants and that horizontal as well as vertical tr...