Crest cavity protection regular toothpaste, travel size .85 oz. (24g) - pack of 4, Crest : Health & Personal Care: Health & Personal Care : Back up stop cavities before they start. Regular brushing can help protect your teeth and strengthen weak spots to help seek cavities. Crest Cavity Protection Toothpaste gives you a cavity treatment that helps take care of your intercommunicate by protecting your teeth and exposed roots.