Figure 4

TEM images show a significant modification on Streptococcus mutans cells (F) (red arrows) with a minor change on Actinomyces viscosus outside of cells appeared (C) (blue arrow) after 21 days exposure to probiotic-GSE nano emulsion-based Jelly candy. In case of biofilm growing without treatment (A,D) and after exposure to sterile saline (B,E), rarely, changes to the cells surfaces are visible.