Dental tartar: what it is, why it forms and how to remove it

Reviewed by: Dr Lauras Smilgevičius, dentist

Dental tartar has nothing to do with the small stones you might pick up by a river in summer. It is hardened, mineralised plaque that sticks firmly to enamel or tooth roots. At first it may be barely visible, a thin yellowish or whitish layer along the gum line. Over time, however, it becomes so hard that even careful brushing cannot remove it.

At Miško Dental Clinic in Klaipėda, we often explain it like this: tartar is like a layer of leaves covering a forest path. If you do not clear it in time, the wrong kind of growth begins underneath. In the mouth, that growth is bacteria. They fuel inflammation, irritate the gums and, eventually, weaken the support around the tooth.

Plaque and tartar: what is the difference?

It helps to separate two things straight away. Soft plaque, or biofilm, is a sticky, almost invisible layer of bacteria. It can still be removed with a toothbrush, floss and interdental brushes. Tartar, also called calculus, is the same plaque after it has hardened as calcium and phosphate minerals from saliva become trapped inside it.

Plaque can begin to mineralise surprisingly quickly. Research shows that hardening may start within the first 24 to 72 hours, and within around 12 days plaque can be heavily mineralised. That is why daily cleaning matters so much. Forgetting once is not a disaster, but repeatedly leaving plaque undisturbed changes the environment in the mouth.

Feature	Soft plaque	Dental tartar
Composition	Bacteria, saliva and food debris	Mineralised plaque containing calcium and phosphate salts
Colour	Colourless or pale yellow	Yellow, brown, sometimes greenish black
Texture	Soft and sticky	Hard and firmly attached to enamel
How it is removed	Toothbrush, floss and interdental brushes	Only by a professional procedure in a clinic
How quickly it forms	Within hours after brushing	Within 1 to 2 weeks from plaque left in place

Why does dental tartar form?

Tartar does not appear on a tooth overnight. First, soft plaque builds up in the mouth. It is a mixture of bacteria, food particles and saliva. If it is not removed properly, minerals from saliva enter that layer and the plaque gradually hardens. New plaque then sticks to the rough hardened surface and mineralises too. In this way, tartar grows layer by layer.

Several factors contribute to tartar build-up:

• Irregular or ineffective daily oral hygiene
• Frequent sugary, sticky or acidic foods and drinks
• Smoking and vaping, which can affect saliva and staining
• Dry mouth caused by medicines, medical conditions or low fluid intake
• Crowded or misaligned teeth that create hard-to-reach areas
• Dentures, braces and bridges, where plaque clings more easily
• Individual saliva composition and genetic tendency

Above the gum and below the gum: two types of tartar

Dental tartar is classified by where it sits in relation to the gum line. This is not just a technical distinction. It affects how tartar is removed and how risky it is for oral health.

Type	Supragingival, above the gum	Subgingival, below the gum
Location	On the visible tooth surface near the gum	Inside the gum pocket, on the tooth root
Colour	White-yellow or brownish	Dark brown or greenish black
Mineral source	Saliva	Gingival crevicular fluid, which is serum-derived
Common places	Inside of the lower front teeth and cheek side of the upper molars	Any tooth, especially where gum pockets are deeper
Why it matters	Often visible, stains easily and irritates the gums	Can drive periodontitis, bone loss and tooth mobility

Tartar above the gum is often visible to the naked eye, especially on the inside of the lower front teeth where saliva ducts release a high concentration of minerals. Tartar hidden below the gum is more deceptive. You may not see it, but a dentist or hygienist can detect it with a probe and sometimes on an X-ray.

How can you recognise dental tartar?

Most people first notice tartar in the mirror as hard yellow or brown deposits near the gum line. Not all signs are visible at first, though.

Signs that it is time to see a dental hygienist include:

• Gums bleeding when brushing or using floss
• Bad breath, or halitosis, despite regular cleaning
• Hard deposits visible along the gum line
• Red, swollen or receding gums
• Sensitivity to cold or heat near the gum line
• A metallic taste in the mouth in the morning

If bad breath remains despite careful brushing, the usual culprits are bacteria living in the rough tartar layers. We cover this in more detail in our article Bad breath: causes and remedies.

Why is dental tartar a serious problem, not just a cosmetic issue?

Many patients first come to us because they want their teeth to look cleaner and brighter. Tartar, however, affects much more than appearance.

The World Health Organization reported in 2022 that severe periodontal disease affects around 19 per cent of adults worldwide, roughly one billion people. The US Centers for Disease Control and Prevention reports that periodontitis is diagnosed in nearly 42 per cent of adults over 30. Most of these cases begin with plaque and tartar left undisturbed around the gums.

Untreated tartar can lead to:

• Gingivitis, an early and still reversible inflammation of the gums
• Periodontitis, irreversible loss of the bone supporting the teeth
• Loose teeth and, eventually, tooth loss
• Persistent bad breath
• A higher burden of chronic inflammation in the body

Scientific literature increasingly discusses links between periodontitis and cardiovascular disease, poorer diabetes control and adverse pregnancy outcomes. The American Heart Association has recognised an association between periodontitis and a higher risk of atherosclerotic cardiovascular disease, with chronic systemic inflammation thought to be one of the key mechanisms.

How is dental tartar professionally removed?

You cannot safely remove tartar at home with a toothbrush, bicarbonate of soda, activated charcoal or instruments bought online. These attempts often end in scratched enamel, injured gums or damaged filling edges.

In the clinic, several methods are combined:

• Ultrasonic scaling. A fine tip produces high-frequency vibrations that break up tartar, while water washes it away. The procedure is quick, comfortable for most patients and safe for enamel when performed properly.
• Hand instruments, such as curettes and scalers. These are used to finish small deposits and difficult areas, especially below the gum. The dentist or hygienist works precisely along the tooth root.
• Air Flow cleaning. A stream of water, air and fine powder, usually erythritol or sodium bicarbonate, gently removes soft plaque and staining from coffee, tea, wine and tobacco. Clinical studies support this method for biofilm removal, especially around implants and braces.
• Deep cleaning, or scaling and root planing. If periodontal pockets have formed, the clinician removes tartar and smooths the roots so the gums can heal and reattach more closely.

Method	Best suited for	Typical time
Ultrasonic scaling	Tartar above the gum, moderate deposits	20 to 40 minutes
Hand instruments	Subgingival tartar and root surfaces	20 to 40 minutes
Air Flow	Biofilm, staining, braces and implants	10 to 20 minutes
Full procedure at Miško Clinic	A typical combination of all three stages	Up to 60 minutes

In Lithuania, this sequence is what we call professional oral hygiene in Klaipėda. After the procedure, teeth often look lighter not because they have been whitened, but because their natural colour has returned after pigment and deposits have been removed.

Does tartar removal hurt and how much does it cost?

The procedure itself is usually not painful, although some patients feel sensitivity, especially if tartar has built up for a long time and the gums are inflamed. In those cases, we can use a local gel or offer local anaesthetic. For very sensitive patients, treatment can be divided into two visits.

In Klaipėda and across Lithuania, professional oral hygiene usually costs around 60 to 95 euros, depending on the amount of tartar, the time needed and the techniques used. At Miško Clinic, we confirm the exact price during the initial assessment after checking the condition of your gums.

How can you prevent dental tartar in future?

Prevention is simple, but it needs consistency. A useful rule is this: care for your mouth as if your dentist could look at it every evening.

• Brush at least twice a day for 2 minutes using gentle circular movements and fluoride toothpaste.
• Clean between the teeth every evening with floss or interdental brushes. Around 40 per cent of the tooth surface sits between teeth, where a toothbrush simply cannot reach.
• Consider an electric toothbrush with a pressure sensor. Clinical studies show that these can reduce plaque and gum bleeding more effectively than manual brushes for many patients.
• Avoid frequent sugary drinks and snacks between meals.
• Stop smoking if you can. It is one of the greatest gifts you can give your gums and saliva.
• Drink enough water to support saliva flow and reduce plaque accumulation.
• Have professional oral hygiene 1 to 2 times per year, or every 3 to 4 months if you build tartar quickly, wear braces, have implants, or have periodontal disease.

If your gums already tend to bleed, we also recommend reading our article on bleeding gums, their causes and treatment. There we explain how plaque turns into inflammation and what role tartar plays.

When should you see a dentist urgently?

Dental tartar is not usually an emergency. However, some signs mean you should book an appointment without delay:

• Your gums bleed every day, even with very gentle brushing
• Bad breath does not go away despite careful cleaning
• Your teeth look “longer” because the gums have receded
• A tooth is moving or gaps have appeared that were not there before
• You notice pus near the gum or throbbing pain

In that case, do not wait. Call us or complete the form on our contact page, and we will offer the nearest available appointment.

Frequently asked questions about dental tartar

Can dental tartar be removed at home?

No. No combination of bicarbonate of soda, activated charcoal, vinegar or online tools can remove tartar safely. These attempts often damage enamel, injure the gums and leave rough surfaces where new plaque sticks even faster.

How often do I need professional oral hygiene?

For most adults, 1 to 2 times per year is enough. Smokers, people with braces, implants or bridges, and patients with periodontitis often need appointments more often, usually every 3 to 4 months.

Does the procedure hurt?

Usually not. The feeling is similar to strong vibration and a water spray. If the gums are inflamed, there may be mild sensitivity, which we can ease with gels or local anaesthetic if needed.

Will my teeth become whiter after hygiene treatment?

It is not whitening in the strict sense. However, once staining from coffee, tea, wine or tobacco has been removed, the natural tooth colour returns and often looks 1 to 2 shades lighter than before.

Can scaling damage tooth enamel?

No, not when performed by a qualified professional. Modern ultrasonic and Air Flow devices are designed to remove tartar and biofilm without harming enamel. Incorrect brushing with a hard toothbrush and frequent acidic drinks are much more damaging to enamel.

Why are teeth sometimes sensitive after hygiene treatment?

Tartar and plaque may have covered the necks of the teeth for some time. When those areas are cleaned, mild sensitivity to cold or sweet foods can appear for a few days. It usually settles within 1 to 2 weeks, especially with toothpaste for sensitive teeth.

Is tartar linked with bad breath?

Yes, very often. The rough, porous surface of tartar shelters bacteria that release sulphur compounds. These compounds are a common reason for bad breath that mouthwash alone cannot solve.

What if I am afraid of dentists?

At Miško Dental Clinic, we work calmly, explain each step before we do it, and never rush the first visit. For many anxious patients, one gentle hygiene appointment is enough to make future visits feel much easier.

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