Chamaecyparis obtusa Suppresses Virulence Genes in Streptococcus mutans

Figure 2

Inhibitory effect of C. obtusa essential oil on biofilm formation by S. mutans, as observed by safranin staining. (a) Control; (b) 0.025 mg/mL; (c) 0.05 mg/mL; (d) 0.1 mg/mL; (e) 0.2 mg/mL essential oil of C. obtusa; and (f) positive control (0.1% NaF). was determined at compared to the control group.