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  Indian J Med Microbiol
 

Figure 4: Representative scanning microscopic images of the dentin surfaces showing the degree of tubule occlusion (a) after etching with phosphoric acid; (b) after treatment; (c) after treatment followed by the acid challenge for Group 4 – Saline.

Figure 4: Representative scanning microscopic images of the dentin surfaces showing the degree of tubule occlusion (a) after etching with phosphoric acid; (b) after treatment; (c) after treatment followed by the acid challenge for Group 4 – Saline.