Figure 3

SEM images of S. mutans biofilms after the treatment (a) with DW and (b) with a solution containing 5.6 mM betaine and 2.8 mM erythritol.

SEM images of S. mutans biofilms after the treatment (a) with DW and (b) with a solution containing 5.6 mM betaine and 2.8 mM erythritol.