What happens if tartar is never removed?

Nothing dramatic happens quickly — which is precisely why tartar (Zahnstein) is so often left alone. The sequence runs over years, and it has one important line in it. In the first stage the gum becomes inflamed, and that stage is fully reversible: clean the deposits away and the tissue recovers. If the inflammation continues, it eventually reaches the bone that holds the tooth, and bone that has been lost does not grow back on its own. Everything before that line can be repaired; everything after it can only be stabilised. The practical point is not that you will lose your teeth — most people with tartar never do — but that the cheapest, easiest and most complete moment to deal with it is always now rather than in three years.

Tartar is porous and rough. It cannot be cleaned smooth by a toothbrush, so it holds living biofilm permanently against the gum margin. The gum responds the way any tissue responds to a constant bacterial irritant: it becomes inflamed.

That is gingivitis (Zahnfleischentzündung). The signs are modest and easy to explain away:

• Bleeding when you brush or floss, especially at the same few spots
• Gums that look darker red or slightly puffy rather than firm and pale pink
• A metallic taste, or a smell on the floss
• Mild tenderness at the gum line

This stage is completely reversible. Remove the deposits, keep the area clean for two or three weeks, and healthy tissue returns. No bone has been affected, nothing is permanently changed, and there is no lasting cost. It is the single best deal in dentistry, and it is available to almost everybody who acts at this point.

Inflamed gum tissue loses its tight seal against the tooth. A shallow groove becomes a pocket, plaque migrates down into it, and new deposits form on the root surface where no brush has ever reached. In German these subgingival deposits are called Konkremente; they are darker, harder and far more firmly attached than the tartar you can see.

Now the process is self-feeding. The deposit deepens the pocket; the deeper pocket collects more biofilm; the biofilm deepens the pocket further. This is the transition from gingivitis to periodontitis (Parodontitis), and it is the reason a dentist measures pocket depths with a probe instead of simply looking at your teeth.

What you might notice at this stage, if anything:

• Bad breath that survives brushing, mouthwash and mints
• Gums that bleed with less provocation, or spontaneously
• A feeling of pressure or itching in the gums
• Food packing into a space that never used to trap anything

What you will not notice is pain. Periodontitis is essentially painless until it is advanced, which is the whole difficulty with it.

Chronic inflammation around the root eventually reaches the bone of the jaw that anchors the tooth, and that bone recedes. This is the line referred to at the top of the article.

The visible consequences arrive slowly:

• Receding gums and teeth that look longer, with sensitive necks exposed to cold
• Root caries — the exposed root surface has no enamel and decays more easily than a crown
• Dark triangles between the teeth where the gum used to fill the gap
• Teeth that loosen, drift or splay, sometimes changing how your bite feels or how you speak
• Ultimately, the loss of a tooth that is no longer held by enough bone

How long does this take? Genuinely variable. Some people carry visible tartar for a decade with modest gum inflammation and no bone loss. Others, particularly those with a strong inflammatory response, poorly controlled diabetes or a smoking habit, move through the stages considerably faster. Family history plays a real part. Nobody can look at a deposit and tell you the date — which is exactly why this is monitored rather than predicted.

And what tartar does not do, because the internet is confused about this:

• It does not directly cause cavities. Decay is driven by acid from sugar-fed bacteria; tartar is already mineralised. The problem is the living biofilm it harbours, not the crust itself.
• It does not fall off by itself, and it does not dissolve. It is bonded to the enamel.
• It does not poison you. The associations between gum disease and general health are real but indirect, and they are described below with the caveats they deserve.

Advanced gum disease is a chronic inflammation with a surface area comparable to the palm of your hand, sitting in permanent contact with your bloodstream. Research groups internationally, and German bodies such as the DGZMK, describe consistent associations between periodontitis and cardiovascular disease, poorly controlled diabetes, rheumatoid arthritis, complications in pregnancy and respiratory infections.

This is the part patients from outside Germany find hardest to see coming, because the cost lands years after the cause.

If a tooth is eventually lost, you need a replacement — a bridge (Brücke), a denture (Prothese) or an implant (Implantat). At that point your fund pays a fixed subsidy (Festzuschuss) towards standard care (Regelversorgung), and how large it is depends on a paper booklet you were supposed to have been collecting stamps in for years.

Two things follow. First, the subsidy is a fixed amount, not a percentage of your actual bill — anything above standard care, including any implant, is your own share (Eigenanteil). Second, the appointment where you collect the stamp is the same appointment where the tartar gets removed. The habit that protects the tooth is the habit that funds its replacement.

There is also a reform under discussion: a draft law passed cabinet in April 2026 which would reduce these tiers to 50, 60 and 65 per cent while keeping the 100 per cent hardship provision. It has not passed the Bundestag or Bundesrat, so nothing has changed for now — it is a proposal, and we mention it only because it is the kind of thing worth knowing when you are deciding whether this year’s check-up can wait.

This is the most common reason people read an article like this one, so let us be direct about it.

Nothing is “too late” in the sense people fear. Even advanced periodontitis is treatable — the aim shifts from restoring what was lost to stopping the loss and keeping the teeth you have, and that is achievable in the great majority of cases.

Heavy deposits are handled in stages. If there is a lot, it is not all done in one appointment. There is no benefit in rushing it and it is more comfortable spread out.

Nobody in the practice is shocked. Dental teams see this every week. If embarrassment has been the obstacle, it is a poor reason to keep paying interest on the problem — and it is a reason we hear often enough to have a routine for it, including sedation and laughing gas (Lachgas) for patients who find the chair genuinely difficult.