Fig. 4From: Thymol and carvacrol induce autolysis, stress, growth inhibition and reduce the biofilm formation by Streptococcus mutans The change in the viability of S. mutans as determined by Live/dead staining when untreated (a, CONT), treated with 25 µg/ml of clove oil (b, CO), carvacrol (d, M-1) and thymol (e, M-2) and 2.5 µg/ml of chlorhexidine digluconate (c, CHD). Orange or red cells represent dead cells while green cells represent live cells (refer to Additional file 1 for raw data)Back to article page