This report was concerned with the isolation and identification of bacterial flora in the human dental, plaque and the dextransucrase activity of isolated species.
The results were obtained as follows:
1. The bacterial flora, isolated from the human dental plaque, was identified as 3 species of resembling streptococci, Streptococcus salivarius strain SD-1, Streptococcus mitis strain SD-9, Streptococcus sanguis strain SD-10, 3 species of resembling lactobacilli, Lactobacillus brevis strain SD-3, Lactobacillus acidophilus strain SD-2 and SD-7, resembling Staphylococcus sp, and one species of resembling Leuconostoc mesenteroides strain SD-6.
2. The dextransucrase activities of resembling Streptococcus mitis strain SD-9 and Streptococcus salivarius strain SD-1 were exhibited the highest among the isolated species of human dental plaque.
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