Fig. 5

Percent inhibition of the biofilm formation by S. mutans in the presence of test compounds. Values are presented are mean ± S.D error of three independent experiments. Dagger chlorhexidine digluconate was tested at a concentration of 2.5, 5, 10 and 20 µg/ml. Asterisk represents the p value <0.05 (refer to Additional file 1 for raw data)