Investigation of Coronal Leakage of Root Fillings after Smear Layer Removal with EDTA or Er,Cr:YSGG Laser through Capillary Flow Porometry
Figure 3
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. In groups 2 and 7, open tubules and removal of smear layer were clearly observed at all sites except at 1 mm. White areas of erosion around the dentinal tubule openings were seen. (a) is at 1 mm from the apex and (e) is at 12 mm from the apex.
