Pedigree - Denta Stix Medium 7 Stick Did you know that 4 out of 5 dogs over the age of three suffer from gum disease? Pedigree Dentastix is an effective daily oral care treat that is scientifically proven to help reduce tartar build-up in your dogs teeth by up to 80%. Pedigree DentaStix is available for adult dogs of all breeds and sizes Small, Medium & Large. Pedigree DentaStix have been designed to ensure theyre not too hard for dogs teeth and, when fed daily, they work to safely and effectively reduce the build-up of plaque and tartar through their active ingredients and mechanical actions. DentaStix have a unique combination of special cleaning texture & active ingredients designed to match a dogs bite force. It has a unique X-shape that creates sheer forces on the dogs teeth to dislodge food particles. Pedigree DentaStix contains two active ingredients: zinc sulphate and sodium tripolyphosphate. These together have the effect of binding calcium in the saliva and slowing down the rate of tartar build-up. By this means, plaque is kept softer for longer, making it easier to remove when the dog chews. Zinc sulphate also adheres to any tartar already on the surface of the tooth and slows down further tartar build-up.