Most pet owners know their dog or cat needs annual vaccines, flea and tick prevention, and regular checkups. But there’s one health issue that affects the majority of adult pets — and most owners don’t discover it until their animal is already in significant pain. That issue is dental disease.
By age three, an estimated 70–80% of dogs and cats have some form of periodontal disease. It’s the most common health condition seen in small animal veterinary practice.
And yet, because animals rarely show obvious signs of mouth pain, most cases go undetected and untreated for years.
Dental disease isn’t just a cosmetic issue or a matter of bad breath. It’s an active infection in the mouth that causes real harm, and left untreated, it spreads far beyond the teeth.
It begins with plaque, the same bacterial film that forms on human teeth. Within 24 to 48 hours, plaque hardens into tartar (also called calculus), which attaches firmly to the tooth surface and below the gumline.
As tartar builds up, the bacteria within it attack the gum tissue, the periodontal ligament, and eventually the bone that holds the teeth in place. The result is inflamed and bleeding gums, receding gum tissue, loose or missing teeth, bone loss in the jaw, and tooth root abscesses. That’s just what’s happening in the mouth.
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What many owners don’t realize is that the same bacteria enter the bloodstream through inflamed gum tissue — and they don’t stay there.
The connection between periodontal disease and systemic health is well-documented in both human and veterinary medicine.
Bacteria from the mouth have been found on the heart valves of dogs with endocarditis, an infection of the heart lining.
The association is consistent enough that veterinary cardiologists routinely recommend regular dental cleanings for dogs with known heart conditions. The liver and kidneys filter the blood, and when bacteria circulate chronically in the bloodstream, these organs take on an elevated burden. Over time, this contributes to organ damage that compounds other age-related changes.
Chronic pain is another consequence that gets overlooked because animals instinctively hide it — it’s a survival mechanism. A dog or cat with a painful mouth will rarely refuse to eat outright.
Instead, you might notice they chew only on one side, drop food, eat more slowly, or seem irritable or withdrawn. Once dental pain is resolved, owners frequently report that their pet seems years younger.
Here’s something that surprises many pet owners: the teeth that look fine on the surface can be severely diseased underneath.
The most critical part of dental disease happens below the gumline, where you can’t see it and your pet can’t tell you about it.
During a professional dental cleaning at Guardian Animal Medical Center, we don’t just scale and polish visible surfaces. We probe each tooth individually to assess pocket depth for signs of attachment loss.
We take dental radiographs to evaluate root structure and bone. We examine every surface of every tooth, including the back sides and inner surfaces that are impossible to inspect in a conscious, moving animal.
This is why professional dental care cannot be replaced by dental treats, water additives, or even diligent at-home brushing — though brushing, when your pet tolerates it, is genuinely helpful between cleanings.
Safe dental cleaning in veterinary patients requires general anesthesia. A fully conscious animal cannot be safely restrained for a thorough cleaning and examination, the instruments involved require stillness to avoid injury, and the animal experiences no discomfort during the procedure.
Modern anesthetic protocols are safe for the vast majority of patients, including seniors, when appropriate pre-anesthetic bloodwork is completed.
Before any anesthetic procedure, we recommend a physical examination and baseline bloodwork to assess organ function. This lets us tailor the protocol to your individual pet and catch anything that warrants extra precaution. During the procedure, pets are monitored continuously — heart rate, blood pressure, oxygen saturation, and temperature are tracked throughout. Most patients go home the same day and are back to normal within 24 hours. Because animals mask pain so effectively, don’t wait for obvious signs.
But if you notice bad breath that doesn’t improve, yellow or brown discoloration on the teeth, swollen or bleeding gums, pawing at the face, reluctance to chew, excessive drooling, or swelling below the eye — which often indicates a tooth root abscess — schedule an appointment promptly.
The best time to start is now. If your pet hasn’t had a dental evaluation in the past year, call us to schedule one.
We’ll assess the current state of your pet’s teeth and gums and give you an honest recommendation. Ask about home care options as well — dental diets, enzymatic chews, and approved rinses can all help slow tartar accumulation between professional cleanings. Dental disease is progressive, but it’s manageable when you stay ahead of it.
Your pet’s mouth is a window into their overall health. We take it seriously, and we want to help you do the same.
— MJ Wixsom, DVM MS, practices at Guardian Animal Medical Center in Flatwoods, Ky.
