The short answer
Your statutory fund pays something towards an inlay (Inlay), but never all of it — and the share is smaller than most patients expect. In the German system an inlay counts as an upgrade to a filling, not as a denture. That means your fund contributes the amount it would have spent on the standard filling (Füllung) it owes you on that tooth, and you pay the difference out of your own pocket. You agree that difference in writing before anything starts, in a document called a Mehrkostenvereinbarung (additional-cost agreement). And because an inlay is filed under fillings rather than dentures, the famous Festzuschuss, the Bonusheft and the Heil- und Kostenplan play no part in it — a detail that catches out almost everyone who has already read up on German dental cover.
Two different boxes: fillings and dentures
German dental cover is not one system but several, and each has its own rules. Nearly all of the confusion around inlays comes from people applying the rules of the wrong box.
Box one — conservative treatment (konservierende Behandlung). Examinations, standard fillings, root canal treatment under certain conditions. Here the fund defines a treatment that is covered in full, with no co-payment at all. If you want something better than that defined treatment, you can have it, but you pay the upgrade yourself. There is no percentage, no bonus, no ranking — just a fixed benefit and the gap above it.
Box two — dentures (Zahnersatz). Crowns, bridges, partial and full dentures, and crowns on implants. This box works completely differently: the fund pays a fixed subsidy (Festzuschuss) per finding, the subsidy rises if your bonus booklet (Bonusheft) is complete, and everything has to be agreed in advance through a treatment and cost plan (Heil- und Kostenplan, HKP).
An inlay lives in box one. A crown lives in box two. The two restorations sit millimetres apart in the same tooth, they may be made from the same ceramic in the same laboratory — and they are settled under entirely different rules. If you want to see the second box in detail, that is a topic of its own: Fixed dentures or a removable denture — which is right for you? (EN).
Why this matters in euros
Because a standard filling is a cheap benefit, the fund’s contribution to an inlay is modest — realistically a small fraction of the total. This is the single most important expectation to set before you say yes. Patients who assume “insurance pays 60 % of everything dental” have imported that number from the denture box, where it belongs to the Festzuschuss and is calculated on standard care, not on the treatment they actually chose.
What the fund covers, and what it does not
The fund covers the treatment of the disease: removing decay, protecting the pulp, closing the tooth so that it is functional and durable. That obligation is met by a straightforward filling placed directly in the mouth in a single sitting. Dental amalgam has been banned across the EU since 1 January 2025, and the standard care (Regelversorgung) for a back tooth is now a filling in a self-adhesive material, or in exceptional cases a bulk-fill composite. Your entitlement to a filling with no co-payment at all is unchanged by that switch. What still triggers a co-payment is choosing something above that level: a multi-layer adhesive technique in a back tooth, a gold filling — or an inlay.
The fund does not cover the things that make an inlay an inlay:
- the impression or digital scan and the second appointment,
- the work of the dental technician (Zahntechniker) in the dental laboratory (Zahnlabor),
- the material itself — pressed or milled ceramic, or a gold alloy,
- the temporary restoration (Provisorium) you wear in between,
- the longer, more demanding bonding protocol under a dry field.
None of that is a luxury in the everyday sense. It is simply more than the level of care the statutory system has defined as sufficient. That is a political decision, not a clinical judgement about your tooth — and it is worth understanding it in exactly those terms before you feel pushed into anything.
The document you sign before treatment: the Mehrkostenvereinbarung
For dentures you get an HKP. For an inlay you get something less famous but just as binding: a written additional-cost agreement, plus a cost estimate (Kostenvoranschlag) itemising the private fee under the German fee schedule for dentists (GOZ).
It must be signed before treatment begins. Not on the day the inlay is fitted, not afterwards. If a practice starts drilling and produces the paperwork later, that is the wrong order.
Read four things on it. What exactly is being made (material, which tooth, whether it is a plain inlay or an onlay covering a cusp); what the total private fee is; what the fund’s share is; and what remains for you. The last number is the one you will actually transfer.
Ask whether a temporary is included in the quoted figure, and whether the follow-up check is. Small items, but they are the ones that turn a “roughly this much” into a surprise.
Take it home if you want to. An inlay is almost never an emergency. A tooth that has waited three months for its appointment can wait another week for your decision. In our practice the first consultation is free, and a written estimate is something you are entitled to ask for anywhere in Germany, at any practice, without justifying the request.
Things that do not help — and one that quietly does
Your Bonusheft does not reduce the price of an inlay. The bonus booklet raises the Festzuschuss for dentures. It has no effect in the filling box. Keep it stamped anyway: the check-up that fills it is free, and the day you do need a crown or a bridge, five or ten years of stamps are worth real money.
The hardship provision (Härtefallregelung) does not make an inlay free. Hardship raises the denture subsidy for people on a low income up to the full cost of standard care. For fillings there is nothing to raise — the standard filling is already covered in full. If money is tight, the honest route is the covered filling, not a discounted inlay.
A second opinion is free of charge in effect. You are allowed to have the same tooth assessed elsewhere before you commit; the examination is a covered benefit. Nobody in the German system will penalise you for asking.
What does help: timing. An inlay is one appointment sequence in a year that may also contain a crown, a cleaning, and a partner’s treatment. Because the inlay share is a private invoice, it can often be spread over instalments (Ratenzahlung, subject to a credit decision) — worth raising at the planning appointment rather than at the desk on the day.
Supplementary dental insurance and private cover
Supplementary dental insurance (Zahnzusatzversicherung). Depending on the tariff, these policies reimburse a share set by the tariff of what you pay privately. Whether an inlay is included at all depends on the wording: some tariffs cover only dentures, others include high-quality fillings and inlays explicitly. Read that clause before you assume.
Two rules apply to every tariff on the market and catch expats out regularly. First, policies have waiting periods and annual ceilings in the early years, so a policy signed in October rarely helps with an inlay in November. Second, no policy pays for treatment that was already recommended, diagnosed or planned before you signed — the technical term in the small print is roughly “treatment already begun or advised”. Insuring a tooth you already know is broken does not work.
Private health insurance (PKV). Here the logic reverses. Private insurance pays according to your tariff, often generously, and an inlay is usually unproblematic — but you receive the full invoice yourself and claim it back. Send the cost estimate to your insurer first and wait for their written confirmation. It costs you a few days and removes the entire risk of a surprise.
Beihilfe. If you are a civil servant or work at a university with Beihilfe entitlement, the same advice holds: estimate first, decision in writing, then treatment.
Is the covered filling actually a worse choice?
Not automatically, and any honest answer has to say so. For a small or medium cavity, a well-placed direct filling is a proper piece of dentistry that can serve for many years. The case for an inlay grows with the size of the defect: as the cavity gets wider and the remaining walls thinner, a laboratory-made restoration allows a more precise contact point to the neighbouring tooth, a more controlled shape of the chewing surface, and a material that has been fully cured outside the mouth rather than in it.
Where the line runs for your particular tooth is a clinical question, not a financial one, and it deserves to be answered separately from the price — which is why we treat it as a separate topic: When do you need an inlay instead of a filling? (EN).
What should never happen is a patient agreeing to a private restoration because they did not understand that a covered alternative existed. If you are unsure whether you were offered a choice, ask the question in these words: “What would the standard covered treatment be for this tooth, and what changes if I pay for the inlay?” Any practice in Germany can answer that in a sentence.
Before you sign — and when to simply go ahead
If you are new to Germany, or your German is still finding its feet
Everything above arrives by post, in German, in the passive voice. A few practical points for the first year here.
You do not have to negotiate with your fund about an inlay: unlike a denture plan, nothing is submitted for approval, so there is no letter to wait for and no deadline to miss. Bring your health insurance card (Gesundheitskarte / eGK) to every appointment — that is what triggers the covered part of the treatment. Keep the invoice: dental costs you pay yourself can sometimes be claimed in your German tax return as extraordinary expenses (außergewöhnliche Belastungen) above an individually calculated threshold, and a tax adviser (Steuerberater) will tell you in five minutes whether it is worth it in your case.
And you are entitled to have the whole thing explained in a language you actually think in. Consent given in a language you only half understand is not consent worth having. Our practice treats and explains in English as a matter of course, alongside German, Russian, Turkish, Ukrainian, Arabic, Kurdish and French — the reason many people travel a little further for an appointment: English-Speaking Dentist in NRW. From Düsseldorf or Essen, Wuppertal is around 20–30 minutes, which is a normal commute for a dentist you can talk to properly.
Normally no. The HKP belongs to dentures — crowns, bridges, prostheses — where it has to reach your fund before treatment starts. An inlay is settled as an upgrade to a filling, so what you receive instead is a cost estimate and an additional-cost agreement to sign. If your particular case is being planned differently, the practice will tell you and give you the corresponding paperwork; ask which route applies to you and get the answer in writing.
No. The fund’s contribution for the standard filling on that tooth remains yours — choosing an upgrade does not cancel it. It is deducted from the private invoice, so you will not see it as a payment into your account; you will see it as a reduction on the bill.
It does not. The bonus booklet only raises the fixed subsidy for dentures. Its value for you is in the future: after five uninterrupted years the denture subsidy rises from 60 % to 70 % of standard care, and after ten years to 75 %. Since the check-up costs you nothing, there is no reason to let the booklet lapse.
Often, but not always, and the amount depends on your tariff: reimbursement across the market typically runs a share set by the tariff of your own share. Check two clauses specifically — whether high-quality fillings and inlays are named alongside dentures, and whether you are still inside a waiting period. Send the cost estimate to the insurer before treatment rather than the invoice afterwards.
Sometimes the fee is lower, yes. What travels badly is the follow-up: an inlay is bonded, and bonded restorations occasionally need adjusting, re-polishing or a check when something feels high. Weigh the saving against the cost of returning for a five-minute correction, and against the fact that your German fund’s contribution is tied to treatment in Germany.
That is a fair question and the answer is usually yes, because an inlay is a permanent restoration, not a location-bound one — it stays in your tooth wherever you move next. What matters more than your visa is the state of the tooth: a defect that is already large will not become smaller while you wait.
An inlay in Germany is a shared bill with an unequal split. The statutory fund pays for the level of care it has defined as sufficient — a standard filling — and everything above that line is yours, agreed in advance and in writing. The Festzuschuss, the Bonusheft and the HKP belong to a different chapter of German dental cover and do not apply here, however often they come up in expat forums.
Which leaves you with an honest, manageable decision. Ask what the covered alternative would be. Ask for the estimate. Check your supplementary policy before, not after. And take the paperwork home if you want a night to think — a tooth that needs an inlay will still need one tomorrow.
Zahnarztpraxis Tsypin · Wuppertal. This article was medically reviewed and is provided for information; it does not replace an examination. Updated August 2026.
