Dentistry
Dental Disease: The Most Under-Treated Problem in Pets
Why the majority of adult dogs and cats have painful dental disease, what actually prevents it, and why anaesthesia-free cleaning is not a substitute.

How common it really is
Surveys consistently find that a majority of dogs and cats have some degree of periodontal disease by the age of three. It begins with plaque at the gum line, mineralises into tartar, and progresses to inflammation and loss of the bone and ligament that hold teeth in place. The process is painful long before a tooth becomes loose.
Cats also suffer tooth resorption, in which the tooth structure is destroyed from within. It is exquisitely painful and frequently invisible without dental radiographs, which is why a visual mouth check alone cannot clear a cat.
Signs you can see at home
Bad breath is the commonest clue and should never be dismissed as normal. Animals rarely stop eating from dental pain — they adapt by swallowing food whole, chewing on one side or avoiding hard treats.
- Persistent bad breath
- Red, swollen or bleeding gums, especially along the gum line
- Brown or yellow build-up on the tooth surface
- Drooling, sometimes blood-tinged, or pawing at the mouth
- Dropping food, chewing on one side, or a sudden preference for wet food
- A facial swelling below the eye, which can indicate a tooth root abscess
What prevents it
Daily toothbrushing with a pet toothpaste is the single most effective measure, and the only one that reliably disrupts plaque before it hardens. It has to be taught gradually — days of touching the muzzle and letting the animal lick paste from a finger before a brush appears at all. Two or three times a week still helps; nothing at all does not.
Dental diets, approved chews and water additives can reduce accumulation, but they supplement brushing rather than replace it. Look for products carrying an independent veterinary dental council seal rather than marketing claims, and avoid bones, antlers and hard nylon toys, which fracture teeth routinely.
Why anaesthesia matters
A proper dental procedure involves probing every tooth, taking radiographs of the roots, cleaning below the gum line where disease actually lives, and extracting teeth that cannot be saved. None of that is possible in a conscious animal. So-called anaesthesia-free cleaning scrapes visible tartar from the crown, leaving the diseased pockets untouched while making the mouth look better — which delays real treatment.
Modern veterinary anaesthesia with pre-operative bloodwork, intravenous fluids and monitoring carries a low risk for most patients, including older ones. Ask your vet about their monitoring protocol rather than avoiding the procedure.

Frequently asked questions
- My pet eats fine, so the teeth must be okay?
- No. Eating is a survival behaviour and continues through significant pain. Only an examination, ideally with radiographs, can assess dental health.
- Are dental chews enough on their own?
- They reduce build-up but do not remove plaque at the gum line. Brushing remains the foundation.
References
- Veterinary dental care and periodontal disease prevalence — American Veterinary Medical Association
- Accepted products for plaque and tartar control — Veterinary Oral Health Council