The Swedencare PlaqueOff System Dental Care Bones is a line of dog chews with the PlaqueOff System which help clean plaque and tartar by abrasive action. Used daily, this natural product made with sea kelp can complement ordinary dental hygiene. Available in four tasty flavors. Choose between Turkey & Cranberry Flavor, Chicken and Pumpkin Flavor, Bacon Flavor and Vegetable Fusion Flavor.