The Tubular Penetration Depth and Adaption of Four Sealers: A Scanning Electron Microscopic Study

Figure 4

The gap width between sealer and root canal walls. There were large gaps between Cortisomol and root canal dentin (Figures 4(a1) and 4(a2)). iRoot SP had connections between both core fillings and root canal walls; however, gaps were still in existence (Figures 4(b1) and 4(b2)). Close junctions were found between AH-Plus and root canal dentin. In addition, the interface was streamline (Figures 4(c1) and 4(c2)). Similarly, RealSeal SE was connected with core fillings and root canal walls, but gaps were partly observed (Figures 4(d1) and 4(d2)). The red arrows indicate the area that was zoomed in.