Fig. 2

The CFUs of the one-day S. mutans biofilm after treatment by MB-induced PDT, SeNPs, and combination therapy compared to the control group. (ns: not significant, NANO: SeNPs, MB: methylene blue, *P-value < 0.05.)
The CFUs of the one-day S. mutans biofilm after treatment by MB-induced PDT, SeNPs, and combination therapy compared to the control group. (ns: not significant, NANO: SeNPs, MB: methylene blue, *P-value < 0.05.)