Viridans Group Streptococci and the Oral Ecosystem
Shree Dhotre 1, Namdev Suryawanshi 2, Sohan Selkar 3, Basavraj Nagoba 2 *
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1 M.M. Patel Public Charitable Trust’s, Ashwini Medical College & Hospital Department of Microbiology,Solapur, India
2 Maharashtra Institute of Medical Sciences & Research, Latur, India
3 MIP College of Physiotherapy, Latur, India
* Corresponding Author


The human oral cavity is the highly selective environment, which can be colonized by certain microbes. Viridans group streptococci are the most common bacterial isolates along with many other aerobic and anaerobic bacteria. S. salivarius is the most common viridians group streptococcus followed by S. mitis, S. sanguis, S. milleri, S. gordonii and S. mutans. The diverse habitat unique to the oral cavity together with a variety of nutrients is supportive to mixed population. These members of the resident oral flora, including viridians group streptococci, are responsible for colonization resistance, i.e., they prevent colonization / invasion by more pathogenic exogenous bacterial pathogens. Disruption of the oral ecosystem may lead to impairment of colonization resistance leading to higher rates of colonization by more pathogenic exogenous bacterial pathogens. Thus, viridians group streptococci normally present in the oral cavity play a significant role in oral health.


This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Review Article

Eur J Gen Med, 2016 - Volume 13 Issue 2, pp. 145-148

Publication date: 06 Apr 2016

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Article Downloads: 174

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