ProDen PlaqueOff®Dental Bones are 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 five tasty flavors. Choose between Turkey & Cranberry Flavor, Chicken & Pumpkin Flavor, Bacon Flavor and Vegetable Fusion Flavor. This product is not recommended for animals being treated for Hyperthyriodism.