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Control Group III: Scanning electron microscope analysis of this group (×50 and ×100). It shows visible smear layer with cementum intact having slight cracks on the cementum surface. Residual embedded calculus is seen with no loss of tooth substance. It is marked with red color. (a) Control Group III at 50x magnification; (b) Control Group III at 100x magnification; (red colour) residual embedded calculus
