Effects of Diode Laser, Gaseous Ozone, and Medical Dressings on Enterococcus faecalis Biofilms in the Root Canal Ex Vivo

Figure 2

(a) Overview of a cross section of the root canal; the blue stained multilayered biofilm of E. faecalis is clearly visible; green background fluorescence of the root canal dentin. The white boxes indicate the areas that are displayed in (b) and (c). (b) Higher magnification of the multilayered biofilm located on the root canal dentin. (c) A mature biofilm has been formed inside the root canal and single bacterial cells are visible inside the dentinal tubules.