Australian Veterinary Dental societies have found that by 3 years of age 80% of dogs are affected by periodontal disease and it is by far the most common of all diseases found dogs. Maintain healthy teeth and gums with the chewy blueberry GREENIES traditional shaped toothbrush. Made from easy to digest, highly soluble ingredients, your dog can enjoy one treat a day to keep the dentist at bay! Made with dried blueberries to help your dog achieve clean teeth and fresh breath! Learn more about preventing gum disease in your pet here.