Investigation of Coronal Leakage of Root Fillings after Smear Layer Removal with EDTA or Er,Cr:YSGG Laser through Capillary Flow Porometry
Figure 6
Photomicrographs of root canal wall in each group after final cleaning protocols (original magnification: 2000x; scalebar is 10 μm). Images (a)–(e) show canal walls at 1, 3, 6, 8, and 12 mm from the apex. A dense and heterogeneous smear layer covering the entire dentinal wall was observed in groups 5 and 10. (a) is at 1 mm from the apex, and (e) is at 12 mm from the apex.
