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  Indian J Med Microbiol
 

Figure 3: Scanning electron microscope photomicrograph of dentin surface prepared and treated with Fe2 (SO4)3 for 5 min. Smear layer partially removed. Most of dentinal tubules partially occluded by dentinal plugs (block arrows). Note intensification of peritubular dentin (solid arrows). Few open dentinal tubules are visible (curved arrows) (×1500)

Figure 3: Scanning electron microscope photomicrograph of dentin surface prepared and treated with Fe<sub>2</sub> (SO<sub>4</sub>)<sub>3</sub> for 5 min. Smear layer partially removed. Most of dentinal tubules partially occluded by dentinal plugs (block arrows). Note intensification of peritubular dentin (solid arrows). Few open dentinal tubules are visible (curved arrows) (×1500)