Effect of pH of In-Office Bleaching Gels and Timing of Fluoride Gel Application on Microhardness and Surface Morphology of Enamel

<div>Mean and standard deviation of enamel microhardness vs. time after bleaching treatment and topical fluoride application (<i>n</i> = 10). Abbreviation: enamel microhardness after first, second, and third session of treatment (MH1, MH2, and MH3).</div>

International Journal of Dentistry

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Figure 1

Figure 1: Effect of pH of In-Office Bleaching Gels and Timing of Fluoride Gel Application on Microhardness and Surface Morphology of Enamel 