If your dog or cat is 2 years of age or older, statistics say he already has plaque and tartar build up on his teeth and probably needs a dental cleaning. If he's over 6 years of age, he's also likely to have periodontal disease.
Bad breath is often the first warning sign of inadequate oral health care.
How to evaluate your pet's teeth. Healthy Mouth in the dog. A healthy mouth of a dog. Early Periodontal Disease in the dog. This dog has plaque and calculus formation and mild gingival inflammation.