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SEM images for the dentin and enamel surfaces at ×15,000 magnification (scale bar 1 µm), (a) control “dentin”, (b) S-PRG eluate “dentin”, (c) Borate “dentin”, (d) control “enamel”, (e) S-PRG eluate “enamel”, (f) Borate “enamel”, (g) control “enamel” at ×30,000 magnification while arrows refer to the interprismatic area (scale bar 0.1 µm), (h) S-PRG eluate “enamel” at ×30,000 magnification (scale bar 0.1 µm), (i) Borate “enamel” at ×30,000 magnification (scale bar 0.1 µm).
