A chipped or cracked crown: what broke, and what happens next
A chipped crown is rarely a same-day emergency, but what broke decides everything: the surface porcelain, the whole crown, or the tooth underneath it.
Reviewed by Yiğit Bal, dentistWritten in Turkey by a dentist. Klinikle is a clinic directory, not a clinic — no practice pays to appear here, and we do not provide treatment. Where a page compares Turkey with treatment at home, read it knowing where it was written.
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You bite on something, feel a crunch that was not the food, and your tongue finds a sharp edge on a crown. In most cases this can wait a few days for an appointment. What cannot be decided at home is which of three quite different things has happened, and the answer changes the treatment from a ten-minute polish to a new crown, or to a conversation about the tooth itself.
Three kinds of break
| What has broken | What you notice | What usually follows |
|---|---|---|
| The outer layer of porcelain | The crown is firmly in place, but a corner or part of the biting surface is rough; a duller, more opaque material may show underneath | Polishing if small, or a repair in the mouth |
| The crown itself | A line running through it, a piece that moves, or a crown in two parts | A new crown |
| The tooth under the crown | The crown has come away with a piece of tooth inside it, or biting hurts sharply | The tooth is assessed first; the crown is the smaller question |
Which of these you are likely to meet depends partly on the material. Layered zirconia and porcelain fused to metal both have a cosmetic porcelain layer over a stronger core, and that outer layer is what chips. Monolithic zirconia, milled from one solid block, very rarely chips, although under enough force the whole crown can fracture. Lithium disilicate tends to crack through rather than flake. Zirconia or e.max goes into how each one behaves when it fails, and it is worth knowing which you have before the appointment.
Until someone can look at it
- Keep any piece that came off. A small lidded container, dry. It shows the dentist the thickness and shade, and occasionally a clean fragment can be bonded back.
- Protect your tongue and cheek. Orthodontic wax from a pharmacy, pressed over the sharp edge, does the job. Do not try to smooth it with a nail file or sandpaper; you will roughen the ceramic further and may crack it.
- Chew on the other side. Hard crusts, ice, nuts and anything sticky can turn a chip into a fracture.
- Do not glue it. Household superglue is not safe on gum and teeth, and it makes a proper repair harder.
- Take two photographs, one straight on and one from the side, and note the date.
If the whole crown has come off in one piece, the order of things is slightly different, and crowns that come loose is the page to follow instead.
Move the appointment forward if the break comes with severe pain, swelling, or a tooth that feels mobile. Those suggest the root or the nerve is involved, and that is not something to leave until next week.
How far a repair in the mouth will go
Small chips that do not take any biting load are often just smoothed and polished, and many people stop noticing them within days. Larger chips on the front of a tooth can be repaired in the mouth: the broken surface is roughened and treated so that composite, the same tooth-coloured material used for fillings, will bond to it, and the composite is then shaped to replace what was lost.
That repair has limits, and it helps to hear them before agreeing to it. Composite takes up stain faster than porcelain and wears faster, so a repair that matches perfectly today can look slightly different in a year or two. On a biting surface it is under constant load, and a large repair there is not expected to last long. The bond between composite and ceramic is also weaker than the bond to natural tooth. So a repair is usually the right choice for a small chip in a visible place and the wrong choice for a large one on a molar. When the break reaches into the body of the crown, when the edge where crown meets tooth no longer fits closely, or when the metal or zirconia core is exposed, a new crown is the more reliable answer.
Why it chipped, and whether it will again
Grinding and clenching, mostly at night and mostly without the person knowing, are the commonest reason by some distance. After that come a bite in which one crown meets the opposing tooth before the others, a hard object bitten unexpectedly, a knock, and a crown made thinner than the material needs because there was not enough room.
A replacement made without finding the cause meets the same forces as the one before it. That is why a careful dentist checks the bite with marking paper before remaking anything, and often recommends a night guard, made from impressions of the finished teeth, alongside the new crown. Night guards after restoration explains what a proper one involves. If several crowns chip within the first months, the bite is the first suspect, and when a crown feels high describes how that shows up day to day.
If the crown was made in Turkey
Here the practical questions come before the clinical ones. Look out your written guarantee before anyone near you touches the crown, because the wording decides what happens next. Many guarantees cover a remake but only at the original clinic; some exclude chipping outright, or exclude damage where no night guard was worn; and some treat any work by another dentist as the end of the guarantee.
Write to the clinic with the photographs, the date and a short description of how it happened. Ask two direct questions: is this covered, and would a repair by a dentist in the UK affect the guarantee? Keep the answer in writing. A cover that only applies if you fly back is worth weighing honestly against a local repair, particularly for a small chip. What guarantees cover walks through the usual terms, and when a guarantee is refused the usual grounds.
Whatever you decide, the dentist who repairs or replaces the crown will want to know the material, the shade and whether it is layered or monolithic. If that is not in your records, ask the clinic for it now, while the case is recent and someone there remembers it.
One chip or a pattern
A single chip years after fitting, on a molar, in someone who grinds, is ordinary wear. Three chips on new front crowns in the first six months is a design or bite problem, and it will keep happening until someone finds out which.
This page is general information, not medical advice. Outcomes vary between individuals and suitability can only be established after an in-person examination and imaging by a qualified dentist.
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