https://www.selleckchem.com/pr....oducts/caffeic-acid-
To evaluate the effects of activated charcoal powder (COAL) combined with regular (RT) or whitening (WT) toothpastes on enamel color and surface in comparison to carbamide peroxide (CP). Dental blocks (n = 10/group) were randomly divided into COAL, COAL/RT, COAL/WT, CP, CP/RT, CP/WT, RT, WT, and CONT (without treatment). Simulated toothbrushing and whitening treatments were followed by colorimetric (ΔE , L*, a*, b*), surface roughness (Ra), and enamel topography assays. ΔE was submitted to two-way ANOVA and Tukey te
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