Polishes for natural whiteness (Specially formulated enamel safe polishing ingredient whitens by gently polishing away surface stains - not bleaching). ADA Accepted - American Dental Association. With Regular Brushing: Fights cavities; Fights visible tartar build-up; Whitens teeth by gently polishing away surface stains; Leaves teeth feeling slick and smooth; Leaves breath feeling refreshed. For healthy teeth, brush twice a day, floss daily and visit your dentist regularly. Crest Extra Whitening - Helps the natural whiteness of your teeth come through. Your dentist uses a polishing paste to get your teeth their natural whitest. Using Crest Extra Whitening between dental visits helps gently polish away surface stains as they build-up. The ADA Council on Scientific Affairs Acceptance of Crest Extra Whitening Toothpaste is based on its finding that the product is effective in helping to prevent and reduce tooth decay and to whiten teeth by removing surface stains, when used as directed.