Tartar is removed mechanically — an ultrasonic scaler vibrates the hardened deposit off the tooth, hand instruments finish what it leaves behind, and polishing smooths the surface afterwards. There is no chemical or paste that dissolves it.
Plaque you can remove yourself. Tartar you cannot, and knowing why is the difference between good home care and wasted effort with a hard-bristled brush. Once plaque mineralises it is bonded to the enamel or root like scale in a kettle. Brushing does not touch it. Whitening toothpaste does not touch it. It comes off with an instrument, applied by someone who can see what they are doing — the core of a professional cleaning appointment, and a physical job rather than an application of something.
From Plaque to Tartar in Under Three Days
Plaque is a biofilm — a soft community of bacteria in a sticky matrix they build themselves. It starts forming on a clean tooth within hours, which is why brushing is a daily job, and at that stage it wipes off.
Left alone, minerals in your saliva — mostly calcium and phosphate — precipitate into the biofilm and harden it. Calcification begins within roughly 24 to 72 hours, and from then the deposit is calculus: rough, porous, firmly attached.
Two things follow. Your daily window is short, and the surfaces you skip turn to tartar. And tartar is not the disease — it is a retentive surface holding fresh plaque against the gum. Removing it removes the scaffolding.
Where Tartar Builds Up, and Why It Is Not Random
Tartar has favourite locations, the same in almost everybody:
- The tongue side of the lower front teeth, where the submandibular and sublingual salivary ducts open into the floor of the mouth.
- The cheek side of the upper molars, where the parotid duct opens opposite the upper first molar.
It forms fastest where saliva enters the mouth, because saliva supplies the minerals. The location is anatomy rather than a verdict on your brushing — and those two zones deserve deliberate attention, angled into the gumline rather than scrubbed across the tooth.
Above the Gum and Below It
Supragingival calculus sits above the gumline — white, cream or yellow, visible in a mirror, and the stuff people notice. Unsightly, and it holds plaque, but on its own it is not what destroys teeth.
Subgingival calculus forms inside the pocket between tooth and gum. Darker, brown to black, stained by blood products from inflamed tissue, and invisible to you. This is the dangerous one: it sits against the periodontal tissues, keeps them chronically inflamed, and the inflammatory response destroys the bone holding the tooth in. That bone does not come back.
Which is why probing depths matter, and why a “quick scale and polish” of the visible surfaces leaves the real problem intact. Where pockets are deep and bone is going, the treatment is gum disease therapy rather than routine hygiene.
The Instruments and What Each One Does
Ultrasonic and piezoelectric scalers. A metal tip vibrates tens of thousands of times a second and shatters the bond between calculus and tooth. Water sprays continuously to cool the tip and flush debris from the pocket, and cavitation in that spray disrupts bacteria beyond the tip’s physical reach. This does the bulk of the work, fast.
Hand scalers and curettes. Sharpened steel — sickle scalers above the gum, rounded-toe curettes below it. Slower and not obsolete, because a hand instrument gives tactile feedback a vibrating tip does not. The hygienist is feeling for residual roughness on the root, which is how you know a tooth is actually clean rather than approximately clean.
Air polishing. A jet of air, water and fine powder — glycine or erythritol below the gum, sodium bicarbonate above it. Efficient on stain and soft biofilm, gentle on roots, useful around implants and brackets. It does not remove hard calculus.
Prophy cup and paste. A slow-speed rubber cup and abrasive paste after scaling, removing residual stain and leaving a smooth surface. Fluoride varnish is painted on at the end, and matters most on exposed roots, which decay far more readily than crown enamel.
Why Polishing Comes Last
Doing it first would be pointless — dragging paste over deposits that need an instrument. The better reason is that scaling leaves microscopic roughness on enamel and cementum, and rough surfaces accumulate plaque faster, so polishing restores the surface.
It is skipped or reduced sometimes, which is a considered decision rather than a shortcut — prophy paste is mildly abrasive and there is no case for polishing teeth with no stain on them. Polishing does not whiten teeth either. Removing stain often looks like whitening, but the underlying colour is unchanged. Changing that is a separate treatment at a separate cost.
Scaling and Root Planing: the Deeper Version
When pockets are deep and the roots inside them contaminated, routine scaling is not enough. Root planing means instrumenting the root itself until it is smooth enough for tissue to reattach against. It is usually done under local anaesthetic, split into two or four appointments, with a review four to six weeks later. Maintenance then runs at three or four months rather than six, because subgingival bacteria recolonise on roughly that timescale. Our post on how long a cleaning takes sets out the difference, and how often you should be seen covers why the interval tightens afterwards.
Implants need the same attention with different instruments. Peri-implantitis — inflammation and bone loss around an implant — behaves much like periodontitis and is a leading cause of implant failure, so anyone with implant treatment needs a maintenance schedule. Titanium or plastic-tipped instruments are used so the surface is not scratched.
Why It Bleeds, and What That Means
Healthy gums do not bleed when instruments touch them. Inflamed gums do, and the blood comes from the ulcerated lining of the pocket, not from anything the hygienist has cut. Bleeding on probing is a diagnostic sign showing where the inflammation is and how extensive; it is commonly misread as rough treatment, which puts people off attending. What it should tell you is where you are missing at home. Clean between your teeth properly for a fortnight and gingival bleeding usually resolves; bleeding that persists suggests deeper pocketing and needs assessing at a proper examination.
Sensitivity for a few days afterwards is normal, particularly on exposed roots. Gums may also look slightly receded once swelling settles — puffy tissue shrinking back to the level the bone actually supports. Honest reporting, not a bad outcome.
You Cannot Do This at Home, and the Kits Are Worse Than Nothing
Steel scaler kits sell online for a few dollars and are a genuinely bad idea.
- You cannot see what you are doing. Most of the calculus that matters is below the gumline, invisible in a bathroom mirror.
- You will scratch the root. Cementum is far softer than enamel and a sharp instrument in an untrained hand gouges it. A scratched root accumulates plaque faster than before you started.
- You will lacerate gum tissue, which heals with scarring or recession, and push debris deeper into the pocket, which is the mechanism that drives bone loss.
- You will remove the visible tartar, leave the harmful part, and conclude it is solved.
There is no home remedy either. Vinegar, baking soda and oil pulling do not dissolve calculus, and acidic rinses erode enamel while leaving the tartar where it was. Tartar-control toothpaste slows new deposit slightly and does nothing to what is there. The one home tool worth buying is an interdental brush that fits your gaps.
What Actually Prevents Tartar
- Clean between your teeth every day. The highest-value habit available and the one most people skip. Whichever tool you genuinely use daily beats the theoretically best one you abandon in a fortnight.
- Brush at the gumline, bristles angled about 45 degrees into the margin. Calculus forms there, not on the bulge that gets all the attention.
- Twice a day, two minutes, soft bristles. Hard bristles and pressure cause recession and abrasion without removing more plaque.
- Target the two hotspots — behind the lower front teeth, and the cheek side of the upper molars.
- Reduce snacking frequency, and stop smoking, which accelerates calculus, masks bleeding and worsens bone loss at once.
The honest caveat: some people form calculus rapidly whatever they do, because their saliva is more mineral-rich, flows more, or sits at a higher pH. Heavy formers can have excellent technique and still need scaling every three or four months. That is physiology, not laziness, and being told otherwise is a reason to be annoyed rather than ashamed.
Frequently Asked Questions
Can you remove tartar yourself at home?
No. Once plaque has mineralised it is bonded to the tooth and needs an instrument. Home scaler kits damage the root and gum and leave the subgingival deposit that actually matters.
How long does it take for plaque to turn into tartar?
Mineralisation begins within about 24 to 72 hours, which is why daily interdental cleaning beats an occasional thorough effort.
How often do I need tartar removed?
Between every three months and once a year, depending on how fast you form it and whether you have periodontal disease. Ask what your interval is based on rather than accepting six months by default. Children are usually on the straightforward end of this; see children’s dentistry.
What does it cost?
Scaling in Ontario is billed in units of roughly fifteen minutes; our fees and payment page explains estimates. Eligible patients should check CDCP coverage, noting the plan pays on its own fee schedule and the gap is not covered.
Book a Clean
If it has been a long time, that is the reason to come in rather than to keep putting it off. Long gaps are ordinary and nobody gets a lecture. Where scaling uncovers decay under old deposit, small cavities are handled with a straightforward filling later.
The household can be seen through our family dentistry side at whatever interval suits each person; new patients start here. If cost is the obstacle, say so — there are ways to make care affordable.
Book online or contact the office. More on prevention and what happens at a recall is on the blog.
Leave a Reply