Tartar and tear staining are two separate problems that happen to be visible at the same time on a white dog, and Maltese owners routinely treat them as one. Tartar is mineralized bacterial film on the tooth, built from plaque and hardened by minerals in saliva. Tear staining is a rust-colored mark on the face, produced when tears carrying iron-containing pigments spill onto the coat and oxidize. Cleaning the teeth will not clear the face, and wiping the face does nothing for the teeth. There is one narrow situation where the two genuinely connect, and it is worth knowing so you can spot it.
What tartar actually is
Plaque is a living community of bacteria that starts re-forming on a clean tooth within hours. Left alone, minerals from saliva precipitate into it and it hardens into calculus, the tan or brown crust you can see and cannot scrape off with a fingernail. In dogs that conversion happens fast, over a few days rather than a few weeks.
A Maltese gets there quickly for structural reasons. Full-size tooth count in a jaw built for a five- to seven-pound dog means crowding, and crowding means contact points between teeth that neither the tongue nor the opposing bite ever disturbs. The heaviest visible deposit usually shows up on the outside of the upper fourth premolar, because a major salivary duct opens right beside it and delivers a steady supply of the minerals that harden plaque.
What tear staining actually is
Tears contain porphyrins, pigment molecules that carry iron. When tears sit on white hair and are exposed to air and light, those pigments oxidize into a reddish-brown stain. The color is a chemical reaction on the coat, not dirt and not infection.
The reason it shows up on a Maltese and not on a black Labrador is coat color plus face shape. A rounded skull, a shallow eye socket, and hair that grows toward the eye all increase overflow tearing, and a white coat displays the result at full contrast.
Common contributors include hair irritating the eye surface, a shallow or blocked tear drainage duct, allergies, and simple face conformation. None of those live in the mouth.
Telling them apart in thirty seconds
The one place they really do overlap
Here is the exception worth carrying around. The tear duct runs from the inner corner of the eye down through bone that sits very close to the roots of the upper canine and upper premolars. When a tooth root in that area becomes badly diseased or abscessed, the resulting inflammation can press on or inflame that drainage pathway, and tears that used to drain normally start spilling over the lid instead.
The signature is asymmetry. Tear staining that has been mild and even for years and then becomes dramatically worse on one side, particularly alongside a swelling below the eye or a change in how your dog eats, is not a grooming problem. That is a same-week veterinary appointment, and it is one of the few times the answer to a face question is found in the mouth.
Bilateral, gradual, lifelong staining on a Maltese is almost always the ordinary kind.
Tonight's check, both problems at once
Do the face and the mouth in the same two minutes, and keep them mentally separate.
- Wipe under each eye with a damp cloth and note whether the fur is actually wet or just stained from before.
- Compare left to right. Even is reassuring. Lopsided is information.
- Lift the upper lip and look at the big tooth in the middle of the upper row on each side. That is where crust appears first.
- Run your eye along the gum margin looking for a red line or a gum that has pulled back.
- Press gently on two teeth. Nothing should shift.
- Smell close to the closed muzzle, then smell the damp face fur separately. Wet fur has its own odor, and it gets blamed on teeth constantly.
Anything that bleeds unprompted, any mobile tooth, a facial swelling, a squinting eye, or a sudden change in appetite goes to your veterinarian rather than into next month's plan.
Where a daily chew fits, and what it will not fix
Ark Naturals Brushless Toothpaste is a paste-filled chew that works by putting its paste onto tooth surfaces while your dog chews. It targets the soft film stage, which is the only stage that responds to anything you do at the kitchen counter, and it needs to happen daily because plaque rebuilds daily.
Set expectations honestly. It has no effect on tear staining. It does not remove calculus that has already hardened onto the enamel, it cannot reach what has formed under the gum line, and it does not reverse periodontal damage that is already done. Hardened deposits come off with instruments during a professional cleaning under general anesthesia, guided by radiographs that show what the eye cannot. Home care buys quality time between those procedures. It is not a substitute for them.
For the tearing side, a veterinary exam is the right first step rather than a stain product, since the useful question is why the tears are overflowing. If you want general background before that appointment, the Merck Veterinary Manual's owner section on mouth disorders covers the dental half clearly.
Frequently asked questions
Will cleaning my Maltese's teeth get rid of tear stains?
Almost never, because the two have different causes. Porphyrin staining comes from tears sitting on white hair. The exception is an upper tooth root problem interfering with tear drainage, which usually shows up as sudden worsening on one side.
Why does my Maltese get tartar so fast?
Small jaws hold a full set of 42 adult teeth, which forces crowding and creates contact points that never self-clean. Plaque parks in those spots and mineralizes within days. Nothing about your dog's care caused it.
Are tear stain supplements safe?
Some marketed products have contained antibiotic compounds, which is a decision for a veterinarian rather than a shelf purchase. Ask your vet before starting anything oral aimed at staining, and ask what they think is driving the tearing in the first place.
Should I trim the hair around my Maltese's eyes?
Often yes, since hair contacting the eye surface drives reflex tearing. Have a groomer or your veterinary team show you the safe way the first time, because scissors near an eye on a wiggling dog is a bad combination.
How often does a Maltese need a professional dental cleaning?
Your veterinarian sets the interval from the exam and radiographs. Many toy breeds land near annual, and dogs with heavy crowding sometimes need it more often. The mouth decides, not the calendar.