Hình 4 Figure 4 presents representative SEMs for each treatment group following four days of treatment. The SEMs reveal varying degrees of surface deposits and occlusion resulting from the different test products. The calcium sodium phosphosilicate, stannous fluoride, and strontium acetate toothpastes appear toFigure 4. Representative SEMs of dentin following four days of treatment with the test toothpastes and negative control.
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