According to American Veterinary Dental College, over 80% of dogs over the age of 3 have active dental disease. When you go to the dentist, they may warn that without proper dental care, you are at risk of developing gingivitis. A regular teeth cleaning and examination is typically enough to ward it off, though. Unfortunately, animals also experience worn teeth, fractured teeth and the accumulation of plaque that can lead to gingivitis. Just like you get your teeth cleaned, your pet should have his or hers cleaned, too. This will prevent the development of dental damage that causes disease and discomfort for your pet.