Crest Tartar Protection helps prevent tartar build-up above the gumline between dental visits: Provides clinically proven effective tartar prevention; Contains Fluoristat for effective cavity prevention; Is gentle on tooth enamel, leaves teeth clean and smooth. Tartar is an unsightly mineral build-up. Once formed it can only be removed by a dental cleaning. After dental cleaning, tartar starts to build up again. But brush twice a day with - Crest Tartar Protection its special tartar blockers help stop new tartar build-up before it forms. This product contains no sugar, like all ADA Accepted toothpastes. ADA Accepted (American Dental Asociation): Crest Tartar Protection has been shown to be an effective decay-preventative dentifrice that can be of significant value when used as directed in a conscientiously applied program of oral hygiene and regular profesional care. It has been shown to reduce the formation of tartar above the gumline, but has not been shown to have a therapeutic effect on periodontal disease. Council of Science Affairs - American Dental Asociation.