Chipped composite bonding: repair, replace or leave it?
One of the advantages of composite bonding is that it can often be repaired rather than redone. Whether that is right for your tooth depends on the size of the chip, the bonding underneath and what caused it.
15 October 2026 · 4 min read · Clinically reviewed by Dr Sundeep Solanki, GDC 212282
Repair versus replacement
A small chip at the edge of otherwise sound, well-coloured bonding can frequently be smoothed or built back with fresh composite. Where the bonding is stained, worn across its surface or debonding at the margins, replacing it may give a more predictable result.
Checking the tooth and the bite
A chip is a clue. Your dentist will look at how your teeth meet, whether you clench or grind, and whether something like biting thread or nails is involved. Repairing without addressing the cause tends to mean another chip.
Shade matching older bonding
Composite picks up some surface staining over time. A repair is matched to the bonding as it is now, so an older restoration may first need polishing, or you may prefer to refresh the whole tooth so the colour is even.
Grinding and night guards
If wear or grinding is part of the picture, a night guard can help protect both natural teeth and bonding.
If you are in pain
Pain, a broken tooth underneath or a knock to the mouth needs prompt individual assessment. Contact a dentist, or NHS 111 out of hours, rather than waiting for a cosmetic appointment.
Questions patients ask
- Can only one tooth be repaired? Often, yes, if the remaining bonding is in good condition.
- Will the colour match? Usually closely; very old or stained bonding may need refreshing.
- Does a chip mean new bonding? Not necessarily. Many chips are small, quick repairs.
This article is general information, not personal dental advice. Treatment suitability is assessed individually at consultation.