Brushing is the single most effective thing you can do at home for your dog's teeth, and the method is simple. Use a soft dog toothbrush or a finger brush with dog toothpaste, lift the lip, hold the brush at about 45 degrees to the gum line, and brush the outer surfaces in short, gentle strokes. Work in calm sessions of a minute or two, and build up to it gradually so your dog learns to accept it rather than fight it.
The part owners get wrong is the start, not the technique. A dog that has never had a brush near its mouth needs a week or two of easy steps first. Below is the gradual plan, the brushing method itself, how often it really needs doing, and what to do when your dog says no. Brushing sits at the center of how you clean your dog's teeth at home, and most of the other methods only top it up.
What you need before you start
Two things. A soft-bristled dog toothbrush, or a rubber finger brush that slips over your fingertip, and a tube of dog toothpaste. A child's soft toothbrush works on a large dog. Finger brushes are gentler and less threatening for a first-timer or a small mouth, though they do not reach as far back on a big dog.
Do not use human toothpaste. It is made to be spat out, and your dog swallows everything you put in its mouth. Human paste often contains fluoride, and some contains xylitol, a sweetener that is toxic to dogs even in small amounts. Dog toothpaste is safe to swallow and comes in flavors like poultry or malt, which matters more than you would think, because the flavor is what turns brushing into something your dog looks forward to. The paste is mostly a reward. The brush does the actual cleaning.
A two-week plan to get your dog used to it
Rushing is why most owners give up. Spread the introduction over about two weeks and keep every session short and positive, ending before your dog gets restless.
Days 1 to 3. Put a little dog toothpaste on your finger and let your dog lick it off, once or twice a day. That is the whole session. You are teaching your dog that the paste is a treat.
Days 4 to 7. With paste on your finger, gently rub along the outside of a few teeth and the gum line, then stop and praise. A few seconds is plenty. You are getting your dog used to your hand in its mouth.
Days 8 to 11. Swap your finger for the brush with a dab of paste. Brush a few of the front and side teeth, no more, then reward and finish. If your dog pulls away, you have gone a step too fast, so drop back to the finger for a day or two and try again.
Days 12 to 14. Build up to brushing the full outer surface of the teeth on both sides, working toward a session of a minute or so. Once your dog takes this calmly, you have a routine you can keep.
If a step goes wrong, the fix is almost always the same. Go back one step, make the session shorter, use more praise and a better reward, and always stop on a good note rather than pushing until your dog has had enough. Some dogs move through this in a week, some take a month. Both are fine.
How to brush, step by step
Sit or kneel beside your dog rather than over its head, because that feels less like a threat. Have your dog facing away or alongside you so you are working from the side.
Lift the lip to expose the teeth and gums. You do not need to open the mouth. Rest the bristles against the teeth at roughly a 45-degree angle so they reach slightly under the gum line, which is where plaque does its damage. Brush the outer, cheek-facing surfaces with gentle small circles or short back-and-forth strokes, moving along the row a few teeth at a time.
Spend the longest on the upper back teeth. The large upper cheek teeth, the fourth premolar and the molars behind the big pointed canines, sit right next to where the salivary ducts empty into the mouth, and saliva is what hardens plaque into tartar. That is why brown tartar shows up there first and heaviest. The front teeth, by contrast, are easy to reach and tend to get the most brushing, so they stay cleaner on their own. Put your effort where the problem is.
You do not need to brush the inside surfaces. Most dogs will not tolerate it, and the tongue keeps those surfaces reasonably clean. A little bleeding at the gum line now and then is common and usually settles as the gums get healthier. Bleeding that keeps happening, a mouth that is clearly sore, or a dog that flinches on one side is a reason to see your vet rather than brush harder.
How often to brush
Daily is the target, and the dog studies are clear about why. In a two-month trial in greyhounds, both daily and weekly brushing reduced tartar, but only daily brushing reduced gingivitis, the early, reversible gum inflammation (Rooney and colleagues, 2021). Weekly brushing kept the tartar down yet left the gums inflamed. In an older beagle study, brushing three times a week kept healthy gums healthy, while once a week was not enough and gum inflammation set in (Tromp and colleagues, 1986).
The reason is timing. Plaque, the soft bacterial film, starts to rebuild on a clean tooth within a day or two and begins to mineralize into hard tartar within a few days. Brush every day and you clear the film before it sets. Skip days and some of it hardens, and once plaque has turned to tartar no brush will shift it. If daily is genuinely not realistic, three times a week is the floor worth aiming for, not once. Brushing also beats the alternatives on its own. A randomized trial found daily brushing more than three times as effective at controlling plaque as a daily dental chew or a dental diet (Allan and colleagues, 2019). Chews, powders and additives help, but they top up brushing rather than replace it, which is the same point we make in our guide to getting rid of plaque on a dog's teeth.
When your dog won't let you
First, rule out pain. A dog that happily accepted brushing and suddenly resists may have a sore tooth or inflamed gums, so a dog that fights only on one side, drools, or drops food is a vet check before anything else. Gingivitis can make the gums tender enough that brushing hurts.
If it is refusal rather than pain, go back to the two-week plan and slow right down, rewarding each tiny step. Some dogs never fully accept a brush. For them, a daily dental chew, dental wipes, or a water additive carry part of the load, and there are more ways to clean a dog's teeth without brushing. A seaweed powder sprinkled on food, like our Caniclean, is another option that helps reduce plaque and asks nothing of a dog that hates having its mouth handled. None of these clean as well as a brush, so use them as a supplement and keep trying with the brush where you can.
When brushing is not enough
Brushing controls plaque. It cannot do everything. It will not remove tartar that has already hardened, it will not fix a cracked or loose tooth, and it will not treat an abscess or advanced periodontal disease. Those need a vet. A proper cleaning, a scale and polish under general anesthetic, is the only way to remove tartar above and below the gum line and to check each tooth and its roots.
Think of it as two jobs that work together. Your vet resets the mouth when it needs it, and daily brushing is what keeps plaque from building straight back up afterwards. If your dog has bad breath that will not shift, visible brown tartar, red or bleeding gums, or any sign of mouth pain, book a check rather than relying on the brush alone.
Brushing after a dental cleaning usually starts again within a day or two, or after the vet's recheck about two weeks later if teeth were pulled.
FAQ
Is it too late to start brushing an older dog's teeth?
No. An older dog can learn to accept brushing with the same gradual plan, and daily plaque control helps at any age. If there is already heavy tartar or sore gums, get a vet check first, because brushing a painful mouth will only teach your dog to dread it.
With a senior dog, our guide to home dental care for older dogs starts with the teeth whose gums are still pink and leaves red or sore ones for the vet, with soaked or wet food in the meantime.
How often should I brush my dog's teeth?
Daily is best. In dogs, only daily brushing has been shown to reduce gum inflammation as well as tartar. If you cannot manage every day, aim for at least three times a week, which is the point below which gum health starts to slip.
What can I use if my dog won't let me brush?
Rule out a sore tooth first, then go slower. If a brush is truly off the table, dental chews, wipes, a water additive or a seaweed powder on food all help reduce plaque, though none match a brush. Keep offering the brush in short, rewarded sessions alongside them.
Can I use human toothpaste on my dog?
No. Human toothpaste can contain fluoride and sometimes xylitol, which is toxic to dogs, and your dog swallows it rather than spitting it out. Use a dog toothpaste, which is safe to swallow and flavored to make brushing easier.
References
- Tromp JA, Jansen J, Pilot T. Gingival health and frequency of tooth brushing in the beagle dog model. Clinical findings. Journal of Clinical Periodontology. 1986;13(2):164-168.
- Rooney NJ, Wonham KL, McIndoe KS, Casey RA, Blackwell EJ, Browne WJ. Weekly and daily tooth brushing by care staff reduces gingivitis and calculus in racing greyhounds. Animals. 2021;11(7):1869.
- Allan RM, Adams VJ, Johnston NW. Prospective randomized blinded clinical trial assessing effectiveness of three dental plaque control methods in dogs. Journal of Small Animal Practice. 2019;60(4):212-217.