By the age of three, most cats have some degree of dental disease. It is the most common health problem in cats and the one owners are least likely to see, because a cat with a painful mouth carries on eating.
Cats hide oral pain extremely well, so "still eating" tells you almost nothing. Brushing is the only home measure with good evidence behind it, and most cats will accept it if it is introduced over weeks rather than started one evening. Everything else on this page is a distant second.
The short version
| Aim for | Daily brushing. Three times a week is far better than nothing |
|---|---|
| Toothpaste | Cat-specific only. Never human toothpaste |
| Brush | Small soft brush or a finger brush |
| Where | The outer surfaces of the upper back teeth |
| Introduce over | 2–4 weeks, seconds at a time |
| See a vet if | Drooling, pawing at the mouth, dropping food, bad breath, red gums, eating on one side |
Why "still eating" is not reassurance
Cats evolved to conceal weakness. A cat with significant dental disease will usually keep eating, keep purring, and behave normally — right up until a vet looks in its mouth under anesthesia and finds resorptive lesions or advanced periodontal disease.
Tooth resorption affects a large proportion of adult cats and is genuinely painful. It cannot be prevented by brushing and it cannot be seen without dental X-rays, which is one reason a proper dental assessment is a veterinary procedure rather than a home one.
What you can see at home: red gum margins, yellow-brown deposits at the gumline, bad breath, drooling, dropping food, chewing on one side, or pawing at the face. Any of those is a vet visit.
Brushing, which is the only home measure with strong evidence
Plaque turns to tartar within days, and once it hardens nothing at home removes it. Brushing works because it disrupts plaque before that happens, and daily is the standard because that is the timescale plaque works on.
Focus on the outer surfaces of the upper back teeth. That is where tartar builds fastest, and the tongue does a reasonable job on the inner surfaces. You do not need to open the mouth — lift the lip and brush along the outside.
The four-week introduction
- Week 1: touch the cheek while your cat is relaxed, then reward. Seconds only.
- Week 2: lift the lip briefly, then reward.
- Week 3: put a little cat toothpaste on your finger and let them lick it. Most are formulated to taste of fish or poultry for this reason.
- Week 4: introduce the brush or finger brush for two or three teeth, then build up.
Stop before your cat wants you to. A cat that has been held down once for this will remember it, and you will have lost more time than you saved.
Never use human toothpaste
Human toothpaste contains fluoride, which should not be swallowed, and some contain xylitol. Cats cannot spit, so everything goes down.
We do not sell pet toothpaste; your vet or a pet pharmacy will. Buy that before the brush, because a brush without it achieves much less.
What about dental treats, additives and biscuits?
Here is the honest position.
| Measure | Evidence |
|---|---|
| Daily brushing | Strong. The gold standard |
| VOHC-accepted dental diets and treats | Moderate, for the specific products carrying the seal |
| Water additives | Weak to moderate, product-dependent |
| Ordinary dry food | Very weak — most kibble shatters rather than scraping |
| Chew toys | None for periodontal disease. Chewing does not reach the gumline |
The Veterinary Oral Health Council seal is the thing to look for on a treat or diet, because it means the product has been tested against a defined standard rather than simply described as dental. We do not sell VOHC-accepted products.
Professional cleaning
Once tartar has hardened or gums are inflamed, home care cannot fix it. A scale and polish is done under general anesthesia — not because vets prefer it that way, but because you cannot X-ray or probe below the gumline on a conscious cat, and that is where the disease is.
Be wary of anesthesia-free dental cleaning. It removes visible tartar from the crown, leaves the part under the gum untouched, and makes the mouth look better while the disease continues.
Common questions
How often should I brush my cat's teeth?
Daily is the standard, because plaque hardens into tartar within days. Three times a week is far better than nothing.
Can I use human toothpaste on my cat?
No. It contains fluoride that should not be swallowed and may contain xylitol. Cats cannot spit. Use a cat-specific toothpaste from your vet or a pet pharmacy.
My cat is still eating normally, so the teeth must be fine?
Not necessarily. Cats conceal oral pain very effectively and usually keep eating with significant dental disease. Look for red gums, bad breath, drooling, dropping food or chewing on one side.
Do dental treats and chew toys work?
Treats and diets carrying the Veterinary Oral Health Council seal have tested evidence behind them. Chew toys do not help with periodontal disease, because chewing does not reach the gumline where it starts.
Why does a dental need general anesthesia?
Because the disease is below the gumline, and you cannot probe or X-ray there on a conscious cat. Anesthesia-free cleaning tidies the visible crown and leaves the actual problem untouched.
What is tooth resorption?
A painful condition in which the tooth structure breaks down, common in adult cats. It cannot be prevented by brushing and needs dental X-rays to diagnose, which is why regular veterinary checks matter alongside home care.
What you need
Buy the toothpaste first. A brush without cat toothpaste does much less, and the toothpaste is what makes the training work.
| Your cat | What to get | Note |
|---|---|---|
| Any cat, first purchase | Cat toothpaste | Not from us. Vet or pet pharmacy. Never human toothpaste |
| Tolerates handling | Nylon bristle toothbrush | Small head. Outer surfaces of the upper back teeth |
| Dislikes a brush | Silicone finger brush | Often accepted where a brush is refused. Watch your fingertip |
| Wriggles, short sessions | Double-headed finger brush | Covers more per pass when you only get seconds |
| Reaching the back teeth | Tooth cleaning pen kit | Slim tip for the back of the mouth |
| Hardened tartar, red gums | Your vet | Nothing at home removes hardened tartar. Do not delay this one |
The toothpaste and the finger brush are the pair to start with, in that order. Most people buy a brush, try it once, and stop — because the cat had never tasted the toothpaste and the first experience was a brush arriving in its mouth. Reverse the order and the odds change completely.
Also worth reading: what cats will actually let you do and signs of pain a cat hides.
Sources
- American Veterinary Dental College — periodontal disease prevalence in cats and home care recommendations
- Veterinary Oral Health Council — accepted products and the testing standard behind the seal
- American Association of Feline Practitioners — feline dental guidelines, including tooth resorption and the need for dental radiographs
- Veterinary guidance on the plaque-to-tartar timescale and the rationale for daily brushing
- AVDC position statement on non-anesthetic dental scaling
- ASPCA Animal Poison Control — xylitol toxicity
Written by Kindopet Guides. Reviewed 7 September 2026. General guidance, not veterinary advice. Red gums, drooling or difficulty eating need a vet.