Tartar

What causes tartar, and does cleaning it off harm your teeth?

The gap and sensitivity you feel after a clean does not come from damage to the tooth, but from the tartar pulling back

If you feel a rough, hard layer on your teeth, or your dentist has told you that you have tartar, this is plaque that has hardened over time. Tartar does not come off on its own; it is only removed with a professional clean. Some patients notice a gap between their teeth after a clean, or feel that a tooth has become loose; this is not because the clean has caused damage, but because the tartar had been filling that gap for months. Below you will find why tartar forms, why there is sensitivity and bleeding after a clean, how often you need cleaning, and why scraping it off at home is harmful.

Short answer

Tartar is the soft layer of bacteria on your teeth, plaque, hardened by the minerals in saliva; it does not come off with a brush, only with a professional clean. Cleaning does not loosen your teeth: the feeling of looseness comes from tartar having filled the gap between your teeth and below the gumline for months, and that gap being felt for the first time once the tartar is removed. What is actually harmful is not having tartar cleaned off, but never having it cleaned at all; the build-up sits against the gum and keeps feeding the inflammation.

What tartar is: Hardened plaque build-up
Does cleaning loosen teeth: No, it reveals a gap that was already there
How often to clean: Depends on your gums, your dentist decides
Scraping it off at home: Damages your enamel and gums

What causes tartar

A thin, sticky layer forms on your teeth every day; this is called plaque, and it contains bacteria, food debris and proteins from your saliva. If it is not cleaned off every day with brushing and floss, plaque starts to harden within a few days with the calcium and phosphate in your saliva. Hardened plaque is called tartar, and it no longer comes off with a brush, floss or mouthwash; because its surface is rough, new plaque also sticks to it more easily.

In teeth that have gone uncleaned for a long time, tartar builds up not only on the surface but also between the teeth and below the gum margin. This build-up sits there for months, sometimes years, and fills the gap between your teeth; even if a tooth has moved slightly, it feels steady because it is resting against the tartar. Once a clean is done and the tartar is removed, that filling disappears and the tooth's true state, that is, a gap or movement that was already there underneath, is felt for the first time. Patients often read this as the clean having loosened my tooth; but cleaning does not create looseness, it only makes visible what was already hidden.

Bleeding and sensitivity during and after a clean are normal. Your gum is already sensitive because the tartar on it has kept it inflamed for a long time; once the tartar is removed, part of the root surface is exposed for the first time, which causes temporary sensitivity to hot and cold. This sensitivity usually eases within a few days as your gum firms up.

The frequency of cleaning is not the same for everyone. A patient with good gum health who brushes regularly may only need one clean a year; in a patient with a history of gum disease, who smokes, or whose saliva is prone to forming tartar, this interval can come down to every three or four months. What determines the right interval is not the calendar but how much build-up was found at the last check-up and how your gum has responded.

Using the tartar-scraping tools you see online to treat yourself at home is not recommended. These tools cannot reach below the gum margin, where tartar mainly builds up and where you cannot see; they only scrape the tartar on the visible surface, and usually scratch the enamel too. A scratched surface becomes a place where new plaque sticks even faster, so the result is not tartar removal but tartar coming back more quickly. Pressing hard at the gum margin can also cause lasting recession in the tissue.

Tartar that is not cleaned off keeps irritating your gum with the bacteria it carries. Gum inflammation develops first; this stage is reversible. As the time without a clean gets longer, the inflammation reaches the bone and turns into periodontitis; bone lost at this stage does not come back. Tartar is not the only cause of gum disease, but it is its biggest trigger.

Plaque and tartar also build up on implants; the material is different, but the mechanism is the same. The blood supply to the tissue around an implant is more limited than around a natural tooth, so inflammation that starts around an implant can progress faster. In patients with implants, regular professional cleaning is at least as important as it is for natural teeth, if not more.

Is the looseness or gap you feel coming from having your tartar cleaned?

The list below separates what you feel after a clean into an expected result and a situation that needs separate assessment.

The tooth can be saved

Your gums are sensitive and lightly bleeding after a cleanThis is the normal reaction of a gum that has just had tartar removed. It eases within a few days with regular cleaning using a soft brush.
You feel a gap between your teeth after a cleanThe tartar had been filling that gap for months; once it is removed, the gap is felt for the first time. This is not something the tooth has newly lost, but a pre-existing situation coming to light.
Your tartar is visible, hard, and does not come off with a brushThis is the classic picture that needs a professional clean. The earlier it is cleaned, the less lasting mark the irritation leaves on your gum.
Your gums are red, swollen and bleedingTartar build-up usually comes with this picture. A clean removes both the tartar and the source of this inflammation.

Saving it is unlikely to hold

The looseness is still obvious weeks after your cleanAt this point the issue is no longer tartar but the amount of bone remaining underneath. It needs separate assessment with pocket measurements and, if needed, a CBCT scan.
The pain is about a specific tooth, not tartarSharp pain that comes on biting is usually from decay, a fracture or inflammation at the root tip; a tartar clean does not explain this pain.
The looseness is in a single tooth and started after a knockThis is a different picture and is time-sensitive; see your dentist the same day, without waiting for a tartar clean.
Your gum recession was already there before the clean, and it is progressingHard brushing or thin gum tissue is a more likely cause here; this is a separate issue and should not be confused with tartar build-up.

How a clean is done

The place to go is your dentist or a dental hygienist working under a dentist's supervision; this page does not replace them. The sequence below shows what happens at a cleaning appointment.

1
Examination and pocket measurement
Where and how much tartar has built up, and the depth of your gum pockets, are recorded. This measurement determines whether the clean is done in a single session or needs a separate stage that goes down inside the pocket.
2
Cleaning the surface above the gumline
The visible tartar above the gum margin is cleaned off with an ultrasonic tip. The vibration breaks up the tartar, and water both cools the area and washes the fragments away.
3
Deep cleaning below the gumline
If there is tartar in the pockets too, cleaning goes down below the gum margin to the root surface. In deep pockets, this is done with the area numbed with local anaesthetic.
4
Polishing
The surface is smoothed; new plaque sticks more slowly to a smooth surface.
5
Care instructions and a follow-up appointment
Your brushing and flossing technique is reviewed, and you are told when your next check-up will be. This interval is not the same for everyone.

What can be done

These are not rivals to each other, but steps applied depending on your situation.

Professional clean

A standard scale and polish, done with ultrasonic or hand instruments, removes visible tartar and what is just below the gum margin. This is the only real solution for tartar; it cannot be removed at home.

Deep cleaning of the root surface inside the pocket

In pockets deeper than four millimetres, cleaning goes down to the root surface. This is an additional stage needed for advanced build-up, more extensive than a standard clean.

Daily prevention

Correct brushing technique and using floss or an interdental brush every day clear plaque before it turns into tartar. This is the only thing that genuinely lengthens the interval between cleans.

Tartar-control toothpastes

These toothpastes can slow down new plaque hardening to some extent, but they do not dissolve or remove tartar that has already formed. Existing tartar is only removed with a professional clean.

A personalised check-up interval

If a history of gum disease, smoking or the make-up of your saliva increases your tendency to form tartar, more frequent checks than the standard six months are recommended. Your dentist sets the interval based on your last examination.

What tartar does if it is not cleaned off

The aim is not to put you off having a clean, but to show you the cost of putting it off.

It turns into gum inflammation

Bacteria on the tartar keep irritating the gum; redness, swelling and bleeding are the first signs of this process. This stage reverses completely with treatment.

It progresses to bone loss

When inflammation reaches the bone, periodontitis begins; bone lost at this stage does not come back on its own. Tartar is the most common trigger of this progression.

It causes bad breath

The rough surface of tartar becomes a permanent home for bacteria; these bacteria produce sulphur compounds that create a lasting smell. Brushing and mouthwash reduce this smell temporarily but do not remove its source.

It raises the risk of inflammation around implants

Tartar building up on an implant creates conditions for inflammation in the surrounding tissue that can progress faster than around a natural tooth. Regular cleaning matters even more here.

It can lead to tooth loss

Tartar left uncleaned for years can, through advanced gum disease, cause teeth to lose their support and eventually be extracted. This end point can be prevented with a simple clean on day one.

What to expect after a clean

The sequence below applies to a standard clean; if deep cleaning inside the pockets was done, the sensitive period can last a little longer.

The first few days
Sensitive gums, temporary sensitivity to hot and cold, and light bleeding are normal. Do not stop brushing; keep gently cleaning the area with a soft brush.
One week
Bleeding largely stops, and your gum colour changes from dark red to pale pink. The feeling of a gap between your teeth can carry on during this period too; this is temporary.
Two to four weeks
Your gum firms up fully, and the feeling of a gap left by the tartar largely fades. If there is still noticeable looseness, this is a matter of remaining bone, not the clean itself.
Your next check-up
New build-up is checked at the interval your dentist sets. Keeping to this interval is the most effective step in stopping tartar becoming a problem again.

Message us right away if

Bleeding that lasts longer than two weeks. This can point to an area the clean has not reached.
Looseness that is increasing day by day. A mild, easing sensitivity is expected; progressive movement is not, so report it the same day.
Swelling, discharge or a fever in your gum. These are signs of active infection and need to be assessed the same day.
A noticeable broken edge or sharp point. The clean may have uncovered an underlying issue with decay or an old filling.

What determines the cost

We do not give a single figure here, because a simple clean above the gumline and one that goes down inside the pocket are different procedures. The items involved:

The amount and depth of the build-up: Whether it is only on the visible surface or also below the gum margin determines the time and method needed.
The number of sessions: In advanced build-up, cleaning may be spread over several appointments rather than a single session.
Whether local anaesthetic is needed: Cleaning inside the pocket may need local anaesthetic; a clean above the gumline usually does not.
How often you are checked: For patients who need frequent checks, the yearly total is calculated differently from the standard interval.

Frequently asked questions

Does tartar cause pain?

It is usually painless in itself; its main signs are bleeding gums, a bad smell and a rough feel on the surface. If there is pain, this may be coming from decay or inflammation that has developed underneath rather than from the tartar itself.

Can I remove tartar at home?

No. You cannot reach tartar below the gum margin with tools at home, and scraping the visible part scratches the enamel and makes it easier for new plaque to stick. Tartar only comes off with a professional clean.

How often should I have a clean?

There is no fixed rule; a patient with good gum health may only need one a year, while a history of gum disease or smoking can bring this down to every three or four months. The amount of build-up seen at your last check-up determines the interval.

Does a clean thin down my teeth?

No, a standard clean does not damage your enamel; what is removed is the tartar itself, not tooth structure. In areas where the gum has already receded, the root surface is already visible, and a clean does not newly expose it.

Why are my teeth sensitive after a clean?

Once tartar is removed, part of the root surface underneath is exposed for the first time, and your gum has not fully firmed up yet. This sensitivity usually eases within a few days.

Can I get tartar on my implant?

Yes, plaque and tartar build up on implant-supported structures too. Because the tissue around an implant can respond to inflammation differently from a natural tooth, regular cleaning matters at least as much here. If you notice redness or bleeding around an implant, report it without waiting for your next check-up.

Does smoking affect tartar?

Yes, smoking speeds up both tartar formation and the progression of gum disease. Patients who smoke are usually kept on a more frequent check-up interval.

Can children get tartar?

Yes, plaque can build up and harden on baby teeth too, especially if regular brushing has not been established. Your child's dentist assesses this at a check-up and cleans it if needed.

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