Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 11, Issue 3, 2009; Page No.(639-641 )

STUDIES ON STREPTOCOCCAL, SPECIES FROM DENTAL CARIES AND ANTIMICROBIAL STUDIES USING VARIOUS PLANT ROOT' EXTRACTS

G. SELVAKUMAR AND R. SENTHILKUMAR

Abstract

Dental caries is a multifactorial pathological condition which involves a susceptible host, a cariogenic biota and a cariogenic diet. The aim of the present study was to isolate the Streptococcal species from various age groups within 11-40 affected by dental caries and the use of antimicrobial tests using plant root extracts. Four species Streptococcus defectivus, Streptococcus mu tans, Streptococcus mitis and Streptococcus equinus were identified from decayed tooth samples. Among the four species S. mutans were predominantly present in mouth and decaying teeth. This might be due to the secretion of acids. Three plant root extracts Achyranthus aspem, Thespesia populania and Men tha sativa were selected to conduct antimicrobial tests against the isolated species. These tests revealed that the root extract of A. aspera against Streptococcus species was more effective than the other root extracts.

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