If a veneer has just come off, put it in a small clean container, leave the glue in the drawer and call your dentist. A veneer that lifts off in one piece can often be bonded back on, and that chance is best when the veneer and the tooth underneath are both undamaged. Chips and cracks are a different matter, and what happens next depends mostly on whether the veneer is porcelain or composite resin.
What to do in the first few hours after a veneer comes off
A loose veneer is rarely painful, but the tooth underneath has lost its covering and may feel rough or a little sensitive to cold. That is expected and usually settles once the veneer is back in place.
- Keep the veneer dry and safe in a container, not wrapped in a tissue where it can be thrown away.
- Brush the exposed tooth gently so it stays clean.
- Chew on the other side until you have been seen.
- Do not use superglue or any household adhesive. These products are not made for the mouth, they can crack a thin porcelain shell, and any residue left on the tooth or veneer makes a proper re-bond much harder.
Book in promptly rather than waiting for your next check-up. A thin veneer kept loose for weeks is more likely to be lost or broken, and the exposed tooth is easier to keep comfortable once it is covered again.
Composite can usually be patched, porcelain usually cannot
Composite veneers are made from tooth-coloured resin that is built up and shaped directly on the tooth. Fresh resin bonds to old resin, so a chipped edge can often be rebuilt in a single visit and polished to blend in. A worn or stained surface can be resurfaced in the same way.
Porcelain behaves differently. It is fired in a lab as a thin ceramic shell. A dentist can sometimes smooth a very small rough edge, and a small chip can sometimes be patched in the mouth with composite resin, but that kind of repair may not match or last as well as the porcelain itself. A visible chip or a crack through the porcelain therefore usually means a new veneer. The exception is a porcelain veneer that has come off intact with no fracture, which is often the most straightforward situation of all because it may simply need cleaning and re-cementing.
| Problem | Composite veneer | Porcelain veneer |
|---|---|---|
| Small chip on the edge | Often rebuilt with fresh resin | Sometimes smoothed or patched with resin; a visible chip usually means a new veneer |
| Came off in one piece | Re-bonded or rebuilt | Often re-bonded |
| Crack or larger break | Repaired or redone | Usually replaced |
| Dull or stained surface | Polished or resurfaced | Rarely an issue, as glazed porcelain resists staining |
| Gum has receded and a margin shows | Extended or redone | Usually replaced |
For a closer look at how the two materials differ in the first place, see our comparison of types of veneers and the guide to composite bonding versus veneers.
Chipping is the most common problem with porcelain
Research on how veneers age gives a reasonable picture of what to expect. A 2016 systematic review in the International Journal of Prosthodontics (Morimoto and colleagues) pooled 13 clinical studies of porcelain and glass-ceramic veneers and estimated that about 89% were still in service after a median follow-up of nine years. Fracture or chipping was the most frequent complication, at about 4%, with debonding at about 2%.
Composite veneers have a shorter track record in studies. A 2023 review in the Journal of Evidence-Based Dental Practice (Lim and colleagues) found a pooled survival of about 88% across randomised trials followed for roughly two to eight years. The problems reported most often were surface roughness, colour mismatch and staining at the edges, and most complications were judged clinically acceptable, with or without polishing or repair.
These are averages from study groups, not a promise for any one tooth. How long a veneer lasts in your mouth depends a great deal on your bite and your habits.
Replacing a veneer means preparing the tooth again
When a porcelain veneer has to be replaced, the old one is removed, the tooth surface is refined and a new veneer is made. You may wear a temporary covering while that happens. Each time this is done, a small amount of tooth surface can be lost along with the old bonding material, which is why re-bonding an intact veneer, or repairing a composite one, is usually preferred when it is a sound option.
At Lumi we use a 3D intraoral scanner and have an in-house lab, so a replacement can be planned from a digital scan of the tooth. Catching a lifting edge or a small chip at a routine visit sometimes means the veneer can be re-bonded or touched up before it fails completely. Our article on whether veneers ruin your teeth explains more about how much tooth is prepared.
Grinding and using teeth as tools shorten a veneer's life
Night-time grinding puts heavy, repeated force on the biting edges, which is exactly where porcelain tends to chip. If you grind or clench, a custom night guard is one of the most useful ways to protect veneers, and our post on veneers for people who grind covers this in more detail.
Day to day, avoid biting nails, pens or ice, and do not open packets with your teeth. Very hard foods are better cut up and chewed with the back teeth. Clean carefully along the gum line so the gums stay healthy around the veneer margins, and let your dentist or OHT polish composite surfaces at your regular visits. Our guide to caring for veneers goes through daily habits.
Questions we are often asked
Is a veneer falling off an emergency?
It is usually not urgent in the sense of pain, but it is worth being seen within a few days. The sooner it is assessed, the better the chance the original veneer can be bonded back on.
Can I wear my veneer back in temporarily?
No. Without proper bonding it can be swallowed or inhaled, and household glues can ruin both the veneer and the tooth surface. Keep it safe and bring it with you.
Does a chipped composite veneer need to be completely redone?
Not often. Small chips in composite can usually be repaired by adding new resin, then shaping and polishing it to match.
Have your veneer checked
If a veneer has chipped, lifted or come off, we can look at the tooth and the veneer and explain whether repair, re-bonding or replacement makes sense, and you will usually receive a written treatment plan, often by email. Cosmetic consults are free; details are on our cosmetic consult page, and you can read more about composite bonding and veneers at our Melrose Park practice.
