Fig. 3

Fold change in mRNA expression level of gtfB, gtfC and ftf gene from Streptococcus mutans after treatment with chitosan hydrogel (CS gel), zinc oxide nanocomposite (ZnONC), and chitosan/zinc oxide nanocomposite hydrogel (ZnONC-CS). Error bars represent standard deviation. * P < 0.05 compared to the control