Help stop cavities before they start. Crest Cavity Protection Toothpaste gives you a cavity treatment that helps take care of your mouth by protecting your teeth and exposed roots. Regular brushing can help protect your teeth and strengthen weak spots to help fight cavities. Plus, it’ll leave your breath feeling fresh. Personal Care Product Type: Toothpaste; Capacity (Volume): 0.85 oz; Active Ingredient: Fluoride; Packing Type: Tube.