You can score a dog's mouth at home in about ten minutes using five points: breath at arm's length, gum color and margin, visible buildup on the tooth surfaces, tooth stability and comfort, and eating behavior. Rate each one 0 for normal, 1 for early change, or 2 for clearly abnormal. A total of 0–2 means keep doing what you are doing. Three to five means tighten the routine and book an exam. Six or higher means your veterinarian should look this week.
What this checklist is and is not
It is a tracking tool. Run it every few months, write down the number, and watch the direction it moves over a couple of years.
It is not a diagnosis. Roughly two-thirds of every tooth sits below the gum line where no owner can see, and only radiographs taken by a veterinary team reveal what is happening down there. Use the score to decide when to ask for help, not to decide what is wrong.
Setting up: light, position, and a calm dog
Daylight near a window beats overhead lighting. Sit beside the dog rather than looming over them, and work from behind the head so lifting a lip feels less like a confrontation.
Start with a dog who has already been walked. Two sessions of thirty seconds each beat one tense two-minute wrestle, and a dog who fights the exam will fight it harder next time.
Point 1: breath at arm's length
Lean in to about two feet, not right up to the muzzle. A healthy mouth at that distance smells like very little.
Score 0 for nothing detectable, 1 for a warm meaty note you notice only up close, 2 for a smell you catch across a room or that lingers after the dog leaves. Sudden foul breath in a mouth that smelled fine last month goes straight to the vet regardless of what the other four points say.
Point 2: gum color and the gum margin
Lift the upper lip and look where pink tissue meets the tooth. Healthy gum in most dogs is an even bubblegum pink, and many dogs also carry normal black pigment in patches, which is not a finding.
Score 0 for uniform color with a crisp, thin margin. Score 1 for a narrow red line following the gum edge, especially above the big upper cheek teeth. Score 2 for puffy, rolled, dark red tissue, gum that bleeds on light contact, or a margin that has pulled back to expose root. Pale, white, blue-tinged or yellow gums are not part of this scale at all and mean an emergency call.
Point 3: buildup on the tooth surfaces
Look at the outer surface of the fourth premolar, the largest cheek tooth on the upper arcade, just below the eye. That surface tells you more than the front teeth do.
Score 0 for clean white enamel. Score 1 for a tan or light brown line hugging the gum edge on one or more teeth. Score 2 for a thick brown or greenish collar, buildup wide enough to bridge two teeth, or coverage across more than about a third of the visible surface.
Point 4: tooth stability and comfort
Press very gently on the crown of one incisor with a fingertip. Nothing should move. Any wobble in an adult tooth is a same-week phone call.
Score 0 for firm teeth and no reaction. Score 1 for a dog who pulls away from one particular region every time you approach it. Score 2 for a mobile tooth, a visible fracture, a brown dot in the center of a worn surface, or a flinch and a hard head-turn. Stop the exam if the dog is uncomfortable, and let your veterinarian take it from there.
Point 5: eating and chewing behavior
This point is scored from the past two weeks, not from the exam. You are looking at function.
Score 0 for normal appetite and a dog who works chews the way they always have. Score 1 for slower eating, chewing on one side, or dropped interest in harder items. Score 2 for kibble falling out of the mouth, food swallowed without chewing, pawing at the face, or drooling that is new.
Adding it up
Any single 2 outranks the total
A dog scoring 2 on tooth stability and 0 everywhere else still has a loose tooth. Treat a single 2 as its own result and skip the arithmetic.
What a good score does not buy you
A clean 1 total does not replace an annual veterinary dental exam. Buildup below the gum margin can be substantial in a mouth that looks tidy from the outside, and dogs are famously good at hiding oral pain.
Feeding the score back into the routine
Points 2 and 3 respond most to daily mechanical cleaning, since both are about material sitting on surfaces you can reach. Chewing scrapes those surfaces and stimulates saliva flow, disrupting soft plaque before it hardens.
Original Brushless Toothpaste works as a source of that daily cleaning action with a toothpaste-style center, and the Soft Shield Protection+ format suits dogs who scored a 1 or 2 on comfort and need something gentler than a firm chew. Compare textures across the dog range before you switch.
Two solid background reads: the AVMA guide to pet dental care and AAHA on your pet's dental care.
FAQ
How do I know if my dog's teeth are bad?
Run the five points above and total them. Visible brown buildup, a red line at the gum edge, and a smell you notice from a few feet away are the three findings owners spot most reliably.
What do healthy dog gums look like?
Even pink, thin at the edge where they meet the tooth, and firm rather than puffy. Black pigmented patches are normal in plenty of dogs and are not a problem on their own.
Should I be able to smell my dog's breath?
Barely, from two feet away. A strong smell means bacterial activity in the mouth and is worth mentioning at your next appointment.
How often should I do this check?
Every three or four months is plenty for most dogs. Small breeds and dogs already scoring 3 or more benefit from a shorter gap.