Fig. 6From: Enhanced in vitro antibacterial effect against Enterococcus faecalis by using both low-dose cetylpyridinium chloride and silver ionsThe dynamic curves of each group after the treated dentin slices soaking in fresh BHI. A The curves of OD600 value within 24 h after the direct soaking in fresh BHI media. B The OD600 value at 24 h. NG: negative control group. BLK: blank control group. As compared with NG or inter-groups: ns: no significant difference, *: p < 0.05, ****: p < 0.0001Back to article page