Introducing Crunch 'n Clean Dog Biscuits. Because clean teeth are a sign of a healthy dog. Roll over to explore the benefits / See the BIG difference compared to leading brand Blocks Tartar Out. Coated with patented DentaShield® to block tartar from forming. Clinically Proven. Blocks 2 times more tartar than regular biscuits. Bakes Taste In. Slow-baked, meaty flavor dogs prefer 2 to 1 over the leading brand*. Packs a Crunch. Thicker for a more satisfying, lick-your-chops crunch. Fresh Breath. Breath-freshening crystals in every bite. Veterinarian-recommended. With vitamins and minerals. *Independent studies on file at The Hartz Mountain Corporation.