How to Brush Dogs’ Teeth Properly | The Gumline Method

The proper way to brush a dog’s teeth is with dog-safe toothpaste and a soft brush at a 45-degree angle on the cheek-facing surfaces at the gumline, using short strokes and light pressure.

For the full breakdown, see our best Brush For Dogs guide.

Dog dental disease is the most common health problem in adult pets, and brushing is the single most effective home defense. The good news: you don’t need to pry the mouth open or scrub every surface. You need the right angle, the right pressure, and patience for a gradual introduction. If you are looking for the right gear before you start, our roundup of the best brush for dogs covers the options that actually work.

Why Brushing Beats Every Other Home Option

Regular brushing is the most effective thing owners can do to keep teeth healthy between professional cleanings, according to the American Veterinary Medical Association. Cornell University’s Riney Canine Health Center calls brushing the most effective method of home care for preventing dental disease, and a peer-reviewed review in PMC describes daily tooth brushing as the evidence-based gold standard. Dental chews and water additives are complements, not replacements.

The goal is to disrupt plaque before it hardens into tartar. Plaque starts forming within hours of a meal, which is why frequency matters more than perfect technique.

How Often Should You Actually Brush?

Daily brushing is best, but several times a week still provides meaningful benefit, per AVMA guidance. Most veterinary sources agree that consistency beats intensity: a 15-second gentle session every day does more good than a forced 2-minute scrub once a week. If your dog only tolerates a few strokes, stop there and try again tomorrow. The routine matters more than the duration.

The Proper Step-by-Step Technique

Step 1: Introduce the process gradually. Cornell recommends starting on a mat or chosen spot for days before you ever touch a tooth. Touch the head, lift the lip, touch a tooth with the brush, then add a few strokes. Reward at every stage. Some dogs accept this in a few days; others take weeks. Both timelines are normal.

Step 2: Let the dog taste the toothpaste. Apply a small amount of dog-safe toothpaste to the brush and let the dog lick it off first. CSU Veterinary Health System recommends pairing this with treats so brushing becomes a positive association. Never use human toothpaste: it can be toxic to dogs because of ingredients like xylitol and fluoride.

Step 3: Lift the lips, don’t open the mouth. For upper teeth, lift the lip with one hand. For lower teeth, tilt the head back slightly and hold the upper jaw while letting the lower jaw hang, per VCA guidance. Do not try to pry the mouth open — it is unnecessary for most dogs and makes them resist.

Step 4: Brush at a 45-degree angle toward the gums. Aim the bristles at the gumline, where plaque accumulates. Use short back-and-forth or circular motions. CSU specifically recommends three back-and-forth strokes per tooth or section with light pressure — light enough that the bristles do not flare out. Focus on the large cheek teeth and canines first, since plaque and tartar accumulate fastest there.

Step 5: Skip the inner surfaces. You do not need to brush the inside of the teeth unless your dog is unusually cooperative. The tongue naturally cleans those surfaces, and forcing the brush inside the mouth is a common reason dogs learn to hate brushing. Stick to the outer, cheek-facing surfaces where dental disease actually starts.

Step 6: Keep sessions short and take breaks. VCA and Purina both suggest about 30 seconds per side. Start with less — even 10 or 15 seconds is fine at first — and work up toward full-mouth brushing over days or weeks. CSU recommends taking short breaks for rewards.

A silicone finger brush is a fine starting tool for a nervous dog, though a soft-bristled toothbrush removes plaque more effectively. A child-sized toothbrush works as an alternative if you cannot find a dog-specific one, as long as the bristles are soft.

If your dog is head-shy or nervous, slow down and keep sessions positive with praise and treats. Watch for bleeding gums: a little pink on the brush can be normal when gum disease is present, but consistent bleeding means you are pressing too hard or the gums need veterinary attention.

Common Mistakes That Ruin the Routine

Most failed brushing routines trace back to one of these errors:

• Prying the mouth open or reaching for inner surfaces — unnecessary for most dogs and a guaranteed way to trigger resistance.
• Using too much pressure, which irritates gums and makes bristles flare, reducing cleaning power.
• Expecting an immediate full-mouth routine instead of building tolerance gradually over multiple sessions.
• Using human toothpaste, which can be toxic to dogs.
• Skipping rewards — treats or praise are what train the dog to accept brushing at all.

Cornell’s guidance on building these habits gradually is dated February 2025 on its Riney Canine Health Center page, and the technique has not changed: consistent, gentle, gumline-focused brushing is the foundation of canine dental care.