A dark line at the gum
Usually the gum has receded and exposed the edge of the veneer or a darker root surface, or stain has seeped in along the cement line.
A dark line at the gum, a chip, a loose veneer, or a smile that looks too white and bulky. What can be repaired, what needs replacing, and how to do it without losing more tooth.
If a veneer has come off, keep it in a clean container and bring it with you. It helps the dentist see why it failed.

Veneers usually need replacing when there is decay at the edge, a large chip or crack, repeated debonding, or when gum recession has exposed a visible margin. A small chip can often be polished or repaired instead. At Creative Arts the tooth under the old veneer is assessed first, and the plan explains whether a repair, a new veneer or a crown is the right option.
Some of these are cosmetic, some are clinical. The clinical ones matter more, because the tooth underneath is at stake.
Usually the gum has receded and exposed the edge of the veneer or a darker root surface, or stain has seeped in along the cement line.
Often from grinding, biting hard objects or an edge that takes more bite force than it was designed for.
The bond has failed. Sometimes the veneer can be rebonded; the cause still needs finding, or it will happen again.
Ceramic does not decay, but the tooth at its edge can. A brown or soft area at the join needs prompt treatment.
Older or rushed work can look opaque, thick or identical from tooth to tooth. There is nothing clinically wrong, but the smile does not look like yours.
Not every problem means starting again. This is how the decision usually falls, though the examination settles it.
| Problem | Often repairable | Usually needs replacing |
|---|---|---|
| Small chip at the edge | Smoothing and polishing, or a composite repair | If the chip exposes the tooth or keeps recurring |
| Surface stain at the margin | Professional cleaning and polishing | If stain has leaked under the veneer |
| Veneer came off in one piece | Rebonding, if the veneer and tooth are sound | If it is cracked, or has failed more than once |
| Decay at the edge | Very small areas can sometimes be filled | Most cases, so the decay can be fully removed |
| Gum recession showing a margin | Sometimes masked with composite at the gum line | When the gap is visible in your smile |
| Too white or too bulky | Not really — the shape and shade are in the ceramic | Yes, redesigned from the start |
Recurring chips or debonding are a sign of a bite or grinding problem. That is investigated alongside the veneer; see TMJ and bite assessment.
Removing a bonded ceramic veneer means cutting it away carefully, because it cannot simply be pulled off. The aim is to remove the ceramic and old cement while keeping as much of the tooth as possible, which is why this work is done under magnification, and why Dr. Marina Antoniuk, whose focus is restorative and microscopic dentistry, is often involved.
What is found underneath decides the next step. If there is still good enamel, a new veneer can usually be bonded to it. If earlier preparation was deep, there is decay, or the tooth has had root canal treatment, there may not be enough enamel left for a veneer to bond reliably.
A new veneer rarely needs less space than the old one, so replacement is usually a like-for-like or slightly larger restoration. That is why it is worth getting the design right: a well-planned replacement should be the last one for many years.
The choice is made tooth by tooth, based on how much sound structure remains.
When enough enamel remains
When the tooth needs protecting
When the damage is small
Replacing veneers follows the same design-first order as new veneers, with an extra step to assess the teeth once the old work is off.
Gums, bite, each veneer's margins and the teeth underneath, as far as radiographs can show.
Visit 1If shape or colour is changing, the new smile is designed and tried in with a mock-up before any old veneer is removed.
Before removalOld veneers are removed under local anaesthetic and magnification; each tooth is checked and the plan confirmed.
Removal visitTemporary veneers or crowns protect the teeth and let you see the new shape while the ceramic is made.
Same visitShade and fit are checked, the new work is bonded, and the bite is balanced. A review follows.
Fitting visit
Replacement often means matching one or two new veneers to older work or natural teeth that are staying. That is a shade problem photographs handle poorly. The laboratory that makes the new ceramic is in the same building as the clinic in Dubai, so the technician can compare your teeth in person, in the same light as the dentist.
Most veneer failures have a cause that can be managed. Dealing with it is part of the plan.
Grinding is the most common reason veneers chip. A night guard protects the new work while you sleep.
Brush and floss where the veneer meets the gum; that join is where decay and staining begin.
Guided Biofilm Therapy removes biofilm without abrading the glazed ceramic surface.
Opening packets, biting nails or cracking shells puts sideways forces on edges that ceramic handles badly.
Failed veneers — whether placed in Dubai or abroad — often need restorative as much as cosmetic judgement, so these cases are shared between dentists with both focuses.
Porcelain veneers typically last 10 to 15 years with good care, and many last longer; composite veneers usually need refreshing within about three to five years. Replacement is usually prompted by gum recession, a chip, decay at the edge or wear, rather than the ceramic itself wearing out. See how long veneers last.
Keep the veneer in a clean container and contact the clinic during opening hours. Do not try to glue it back yourself, as household adhesives can damage the tooth and the veneer. If the veneer is intact and the tooth is healthy, it can sometimes be rebonded. The exposed tooth may feel sensitive until then.
Small chips can often be smoothed and polished, or repaired with composite resin bonded to the ceramic. The repair is usually good for small areas at the edge, but it may not match the ceramic's surface perfectly over time. A large chip, or one that exposes the tooth, usually means the veneer needs replacing.
Some care is needed, because a bonded veneer has to be cut away rather than lifted off. Done under magnification, removal takes off the ceramic and old cement with as little tooth as possible. Occasionally what is found underneath means a crown is the safer option, and your dentist will explain why before proceeding.
Yes, but it means replacing them, because the shade and thickness are built into the ceramic. The new smile is designed first and tried as a mock-up, so you can see a more natural shade and thinner profile before the old veneers are removed. Where possible, the new design uses the existing preparation.
Often, yes. The challenge is matching one new veneer to older ones or to natural teeth next to it. Having the technician see your teeth in person helps with this. If the neighbouring veneers are also near the end of their life, replacing them together can give a more even result.
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