Research Article

A Comparison of Er:YAG Laser with Photon-Initiated Photoacoustic Streaming, Nd:YAG Laser, and Conventional Irrigation on the Eradication of Root Dentinal Tubule Infection by Enterococcus faecalis Biofilms: A Scanning Electron Microscopy Study

Figure 1

Scanning electron microscope images of biofilm formation. (a) Colonization of Enterococcus faecalis and a biofilm-like structure on the canal surface after 4 weeks of incubation (magnification, 3000x). (b) Enterococcus faecalis invasion into the dentin tubules (magnification, 30,000x).
(a)
(b)