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Objective: To compare the stain removal and teeth whitening effects of a 2-STEP dentifrice to improve dental aesthetics at home. Methods:The study was conducted over 2 months using 124 bovine tooth specimens.STEP 1 dentifrice contained 35% calcium carbonate and 15% dicalcium phosphate, while STEP 2 contained 2.14% hydrogen peroxide and 7% colloidal silica.Stain removal and whitening effects were evaluated using the Vita Shade Guide and Easyshade V.Results: STEP 1 dentifrice showed significant improvements in brightness and chroma after 5 applications (p0.001).STEP 2 dentifrice also showed significant improvements in brightness and chroma after 5 applications (p0.001). Conclusion:The 2-STEP dentifrice (STEP 1 with 35% calcium carbonate and 15% dicalcium phosphate, STEP 2 with 2.14% hydrogen peroxide and 7% colloidal silica) effectively brightened and whitened teeth.
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Hong et al. (2024) studied this question.
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