Devji, Tahira Dentifrices specifically formulated for tooth whitening reduce extrinsic tooth surface discoloration. [electronic resource] - Journal of the American Dental Association (1939) 10 2017 - e144 p. digital Publication Type: Journal Article; Comment ISSN: 1943-4723 Standard No.: 10.1016/j.adaj.2017.06.037 doi Subjects--Topical Terms: DentifricesHumansTooth BleachingTooth DiscolorationToothpastes