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How we choose clinics →Cosmetic · 8 min read
Porcelain veneers typically last ten to fifteen years and composite five to seven. But averages hide the useful information, which is that most veneers fail for one of four reasons — and three of them are preventable.
Published 2026-04-21 · Reviewed with clinic surgeons
| Type | Typical lifespan | Main limitation |
|---|---|---|
| E-max (lithium disilicate) | 10–15 years | Fracture under load |
| Layered porcelain | 10–15 years | Chipping at the edges |
| Composite (direct) | 5–7 years | Staining and surface dulling |
| Zirconia crown | 10–20 years | Gum recession at the margin |
Long-term studies consistently report porcelain veneer survival above 90% at ten years. That figure comes from careful case selection and good bonding technique, which is worth remembering when comparing quotes.
The veneer comes off intact. This is a bonding failure rather than a material failure, and it is largely determined in the few minutes when the veneer is cemented.
The bond is strongest to enamel. Where preparation has cut through into dentine — because the tooth was already heavily filled, or because too much was removed — bond strength drops substantially. Moisture contamination during bonding has the same effect.
A debonded veneer can usually be re-bonded if it is intact and you keep it. Do not throw it away.
The veneer cracks or a piece breaks off. This is nearly always about force rather than material quality.
Bruxism is the dominant factor. Grinding applies lateral forces that a thin ceramic shell bonded to a front tooth is not designed to resist. If you grind and do not wear a night guard, expect fractures within a few years regardless of what you paid.
The veneer itself is fine, but the gum has receded and exposed the margin where restoration meets tooth. A dark line appears, and the exposed root surface is vulnerable to decay.
This is the most common reason well-made veneers are eventually replaced, and it is a function of gum health over time rather than of the restoration. Aggressive brushing, periodontal disease and untreated inflammation all accelerate it — which is why reputable clinics insist on treating gum disease before any cosmetic work.
Composite is porous in a way ceramic is not. It picks up colour from coffee, tea, red wine and tobacco, and its polished surface dulls over years of brushing.
This is not really failure so much as the material behaving as expected. Composite is designed to be maintained: repolishing every couple of years restores much of the surface, and sections can be repaired or replaced individually rather than as a set.
The old veneer is removed and a new one bonded to the same preparation. Because the tooth was already prepared, replacement usually removes little or no additional structure — the significant loss happened the first time.
This is the argument for delaying porcelain in younger patients. Composite bonding at twenty-five preserves the tooth entirely and can be redone at thirty-five, whereas porcelain at twenty-five commits the tooth for life.
Eventually, yes. Most are replaced within ten to fifteen years, commonly because gum recession has exposed the margin rather than because the veneer itself failed.
The veneer cannot decay, but the tooth underneath can, particularly at the margin. Decay under a veneer is a common reason for replacement, which is why hygiene matters as much as it did before.
Small chips can sometimes be polished or repaired with composite. A fractured veneer usually needs replacing. A debonded but intact veneer can often be re-bonded.
The preparation is permanent — enamel removed cannot be replaced, so the tooth will always need covering. The veneer itself is not permanent and will need replacing over time.
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Read article →Veneers cover the front of a tooth; crowns cover all of it. The choice depends on how much healthy tooth remains, not on appearance. A clear comparison.
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Read article →Hi! Send us a photo of your teeth or an X-ray and we’ll come back with a written quote from our featured clinics. No cost, no obligation.
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