Tartar on teeth: why it appears, what it looks like, and how to remove it

Care
Yelyzaveta Stavytska
13.10.2026

Tartar is a common problem for most adult patients. But almost no one knows why tartar is dangerous or why a toothbrush can't deal with it. In this article, we'll explain what tartar is, why it forms, what it looks like, and how it's removed in modern dentistry.

Tartar (dental calculus) is a mineralized, hardened buildup on the teeth that can't be removed by brushing with an ordinary toothbrush at home. Normally, after eating, a soft plaque made of food debris and bacteria forms on the teeth. This plaque needs to be removed after every meal, otherwise it hardens through contact with saliva within 10–14 days. These deposits are visibly noticeable on the tooth surface.

What tartar is — and how it differs from plaque

When food debris, bacteria, and calcium salts from saliva accumulate on the tooth surface, soft plaque forms. Under the influence of salts in saliva, it hardens and mineralizes, turning into tartar — a hard, porous mass that can't be removed with a toothbrush. What tartar looks like:

  • it has a dense consistency;
  • tartar can be white, yellow, light brown, or even black;
  • it feels rough when you run your tongue over it.

You can find plenty of photos of tartar online, but you shouldn't try to diagnose yourself. It's better to see a dentist who will identify the type of tartar and treat this pathological condition. After all, tartar isn't just a cosmetic issue — it's a pathology that damages the gums and bone tissue.

Why tartar forms on teeth — main causes and risk factors

A soft plaque made of food debris and bacteria is constantly forming on the teeth. If it isn't removed right away, it hardens through contact with saliva and turns into tartar. Let's look at why tartar forms on teeth:

  • insufficient oral hygiene;
  • excess sugar and simple carbohydrates in the diet;
  • a high concentration of calcium and phosphorus in saliva;
  • smoking and frequent consumption of coffee and strong tea;
  • anatomical features of the bite and tooth positioning.

The appearance of tartar causes bleeding and inflammation of the gums, as well as destruction of enamel and the tooth's bone tissue.

How quickly does tartar form after brushing your teeth

Mineralization of soft plaque takes from 7 to 14 days. During that time, soft deposits that haven't been removed harden and turn into tartar. The speed at which tartar forms depends on the composition of saliva, the thoroughness of oral hygiene, diet, and harmful habits. Within just a few hours after brushing, an organic film forms on the teeth where bacteria settle. Over the next 1–3 days, the film thickens and actively absorbs minerals. And after about a week, it turns into hard tartar that can't be scraped off at home.

What tartar looks like — supragingival and subgingival

There are two types of tartar — supragingival and subgingival. Supragingival tartar is visible, yellowish or brown, and builds up near the gumline. Subgingival tartar is darker and denser, hidden beneath the gums, and therefore more dangerous. You can see in photos what supragingival tartar looks like, but subgingival tartar (not visible to the eye) does more damage.

Supragingival tartar forms above the gumline on the crown of the tooth. It's easy to notice and feel with your tongue. Subgingival tartar is located below the gumline, in the pockets on the tooth root surface. It's completely hidden and is only visible on an X-ray.

Black tartar on teeth — what it means and why it's darker than usual

Tartar can turn black under the influence of external or internal pigments. Factors that cause black tartar to form:

  • tobacco smoke, coffee and tea, red wine, dark food dyes;
  • the activity of chromogenic bacteria;
  • contact between tartar and blood.

Supragingival black tartar is both an aesthetic problem and a pathology that destroys tooth tissue. Subgingival tartar is almost always black due to admixtures of blood and purulent discharge.

Where tartar forms most often — high-risk areas

High-risk areas for tartar formation are hard-to-clean areas of the oral cavity and places near the openings of the salivary gland ducts. The main high-risk areas are:

  • the inner surface of the lower front teeth;
  • the outer side of the upper front molars;
  • the spaces between teeth;
  • the area near the gumline;
  • wisdom teeth.

These areas are difficult to clean with an ordinary toothbrush, and the main factors behind tartar formation in these areas are the proximity of the sublingual and parotid salivary glands, anatomical grooves, and food debris in the spaces between teeth.

Why tartar is dangerous — consequences for gums and teeth

Tartar is very dangerous for gums and teeth. If hard deposits aren't removed from the teeth, the following complications begin:

  • gingivitis;
  • periodontitis;
  • gum recession;
  • tooth mobility;
  • bad breath.

Tartar causes enamel destruction and gum inflammation, and in advanced cases, tooth loss. The gums begin to become inflamed, swollen, and bleed during brushing. If tartar forms in the area of the tooth root, the ligament between the bone and the tooth begins to break down. Tartar is the main cause of periodontitis and tooth loss in adults, and the longer it stays, the deeper the inflammatory process goes.

Tartar and periodontitis — how one condition leads to another

Tartar causes mechanical irritation of the gums, traps bacteria, and over time leads to gingivitis — the initial stage of gum inflammation. Without treatment, gingivitis becomes more severe and progresses to periodontitis. The attachment between the tooth and gums starts to break down at a deep level, which leads to tooth loss.

The stages from plaque appearance to periodontitis:

  • accumulation of soft deposits;
  • hardening and mineralization;
  • gum irritation and gingivitis;
  • formation of periodontal pockets;
  • bone destruction;
  • tooth loss.

It's worth understanding what tartar is so you can see a dentist in time and remove the buildup through professional cleaning.

Bad breath from tartar — why it happens and how it's linked to bacteria

The porous structure of tartar is an ideal environment for anaerobic bacteria, which release foul-smelling gases as a result of their life activity. Bacteria break down proteins found in food debris, blood, and damaged tooth tissue. In the process, volatile sulfur compounds with a putrid smell are released.

How tartar is removed — modern removal methods

A dentist removes tartar using modern methods — ultrasound and air-polishing systems. How tartar is removed:

  • ultrasonic cleaning as the main method;
  • Air Flow — polishing after tartar removal;
  • hand instruments for subgingival tartar.

At Digital Dental Clinic, tartar is removed painlessly, without damaging the enamel, followed by polishing. Attempts to remove tartar yourself at home using sharp objects lead to injury to the gums and enamel. This causes inflammatory processes and cavities.

Ultrasonic tartar removal — how the procedure works and whether it hurts

The modern and safe procedure of ultrasonic tartar removal is painless and takes about 30 minutes. Tartar is removed using an ultrasonic scaler. The device breaks down hard deposits with high-frequency vibrations without damaging the enamel. Tartar is broken up on the tooth surface and in the periodontal pockets. At the same time, water or an antiseptic solution is delivered, which flushes away debris and cools the tooth surface.

The doctor uses local anesthesia, so the patient doesn't feel discomfort. After tartar removal, the dentist polishes the teeth and applies fluoride. Bacteria don't stick to smooth tooth surfaces, which is an effective way to prevent tartar from forming.

Subgingival tartar — why its removal differs from supragingival

Subgingival tartar is firmly attached to the tooth root surface and periodontal pockets. Removing subgingival tartar is a complex procedure, as the dentist has to reach deep into the pockets and remove deposits that have literally grown into the cementum of the tooth root.

Removing subgingival tartar requires special tips and instruments. Periodontal hand curettes remove hard deposits without damaging soft tissues.

How to prevent tartar from coming back — prevention

To prevent hard deposits from forming on the teeth again, preventive measures need to be followed. These include proper brushing technique, dental floss and an oral irrigator, limiting coffee and tobacco, and regular professional cleaning every 6 months. But even with perfect hygiene, tartar still forms, so regular dental visits are essential.

Teeth should be brushed morning and evening for at least 3 minutes, covering the entire tooth surface. Use toothpastes containing zinc, which blocks the hardening of deposits. Thorough cleaning is provided by dental floss, an oral irrigator, and interdental brushes.

How to brush your teeth properly to minimize tartar formation

To prevent tartar buildup, teeth need to be brushed correctly. Rules to follow when brushing:

  • be consistent — brush twice a day after meals;
  • hold the brush at a 45-degree angle to the tooth surface;
  • use sweeping and circular motions;
  • give preference to electric toothbrushes.

Use floss regularly to remove food fibers from the spaces between teeth, and finish cleaning with a mouthwash.

How often should you get professional tartar cleaning

Professional tartar cleaning is done twice a year. The frequency depends on the individual characteristics of the body and the condition of the oral cavity. In which cases professional cleaning is done more often:

  • wearing braces — every 3–4 months;
  • with gingivitis and periodontitis — every 4 months;
  • with healthy gums and good home hygiene — once every six months.

At home, it's hard to effectively clean hard-to-reach areas where soft plaque accumulates and later mineralizes, forming tartar.

Tartar removal at DDC Dental — book an appointment

Digital Dental Clinic takes a special approach to professional cleaning. We use specialized equipment and a comprehensive approach — ultrasound + Air Flow + polishing. The procedure is painless and comfortable for patients. Book a consultation and professional cleaning at Digital Dental Clinic to keep your teeth and gums healthy for years to come.

FAQ

Does it hurt to have tartar removed at the dentist?

Removing deposits from the teeth is a painless procedure performed under local anesthesia.

How often should tartar be removed at the dentist's office?

The frequency depends on the condition of the patient's teeth. Preventive cleaning is done once every 6 months.

Why does tartar appear even with regular brushing?

The appearance of hard deposits is caused by improper brushing technique and individual features of saliva composition.

How is black tartar different from regular tartar, and is it more dangerous?

Black hard deposits appear due to the effect of staining substances. This indicates a long period of mineralization and is more often seen in subgingival areas.

Can tartar be removed at home without a dentist?

No, doing so leads to injury to the enamel and soft tissues.

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Yelyzaveta Stavytska — Periodontist
Author of the article
Yelyzaveta Stavytska
Periodontist

Yelyzaveta Stavytska — periodontist, 9+ years of experience. Treats gingivitis and periodontitis, professional hygiene. Saved 4500+ teeth from extraction.

More about the author