Denta flex dog chews are scientifically proven to reduce the build up of plaque and tartar at the gum line when fed twice a week the revolutionary texture of these dental chews flexes around your dogs teeth for a deep clean dog dental chews developed with the help of vets and nutritionists at waltham centre for pet nutrition dog treats that are low in fat with no added sugar and free from artificial colours and flavours pet chews with great tasting chicken flavour available in different sizes