Dental disease affects the majority of adult dogs and causes chronic pain that significantly reduces quality of life. Proactive prevention and treatment are among the most impactful welfare interventions.
Canine dental disease causes progressive welfare harm through multiple mechanisms. Periodontal disease causes chronic gum inflammation and pain that dogs compensate for through behavioral adaptation rather than obvious distress signals. Tooth root abscesses — particularly in upper carnassial teeth — can cause facial swelling, eye drainage, and severe pain. Fractured teeth with exposed pulp cause acute and chronic pain. The challenge for owners and veterinarians is recognition: dogs continue eating with dental pain, masking the problem. Veterinary dental examination under anesthesia with full-mouth radiography reveals the true extent of disease invisible on conscious visual examination. Treatment provides immediate welfare improvement — behavioral changes including increased playfulness, improved appetite, and more affectionate interactions after dental treatment commonly surprise owners who had attributed behavioral changes to aging. Prevention through daily brushing from puppyhood prevents the accumulation of disease that causes this suffering.