Effects of charcoal-based whitening toothpastes on human enamel in terms of color, surface roughness, and microhardness: an in vitro study

ConclusionTwelve week brushing with charcoal based whitening toothpastes and a regular fluoridated toothpaste  presented similar effects in color of enamel. Surface roughness was increased(except BW) while microhardness was not affected(except CT) with charcoal based whitening toothpastes.Clinical relevanceCharcoal based whitening toothpastes do not promise to whiten the human permanent teeth and their effects on enamel abrasion should not be disregarded.
Source: Clinical Oral Investigations - Category: Dentistry Source Type: research