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 dental cleaning. After dental cleaning, tartar starts to build up again. But brush twice a day with Crest Tartar Protection. Its patented tartar blockers help stop new tartar build-up before it forms. For best results: start with professional cleaning, brush regularly to help prevent the return of ugly tartar build-up above the gumline, use dental floss, have regular professional cleanings to remove tartar build-up.