Fig. 3
From: Effect of sulfinate salt on bonding and polymerization of adhesive to intracoronally bleached dentin

Representative SEM micrographs of the resin tag system of the resin-dentin interface formed by 2-SEA Clearfil SE Bond 2 (×3000 magnification). In the control group (A), uniform resin tags within a thin hybrid layer were observed. Numerous and longer resin tags (white arrow) were found in the bleached group (B) and bleached with SA application (C). SA sulfinate agent, AD adhesive, D dentin.