New porcelain looks its best on the day it is fitted. What happens after that is mostly up to you, and the difference between careful and careless is roughly a decade of service.
The two things to understand: porcelain itself does not decay, but the tooth underneath it does, and porcelain is hard but brittle — it resists wear far better than it resists a sudden sharp force.
1. Deal with grinding
Grinding and clenching destroy cosmetic dentistry faster than anything else on this list. If you grind, you will chip veneers, and no material choice prevents it.
Signs worth taking seriously: waking with a tight jaw or headache, worn-flat edges on your natural teeth, a partner who has mentioned the noise. Say so during planning, not afterwards — it changes the material and the design.
If you grind, wear the night guard. Every night. This is the single highest-value habit for anyone with porcelain work.
2. Clean the margin, every day
The join between the restoration and your tooth — the margin — is where trouble starts. Decay under a crown is the most common reason a perfectly good crown has to be replaced, and it always begins at that line, usually just under the gum where the brush does not quite reach.
- Brush twice daily, gently, at the gumline, with a soft brush.
- Clean between the teeth every day. Floss, interdental brushes or a water flosser — whichever you will actually use.
- Veneers on front teeth need flossing right down to the gum. Slide the floss out sideways rather than snapping it up through a tight contact.
- Keep your regular check-ups. A margin starting to fail is easy to see and cheap to fix early.
3. Stop using your teeth as tools
The list of things that break porcelain is short and predictable:
- Ice
- Bottle caps and packaging
- Pens and fingernails
- Hard nuts, crab and lobster shell, unpopped popcorn kernels
- Hard sweets and toffee — toffee is also the classic way to pull off a crown
- Bones in food, which in Thailand includes more dishes than you might expect
Nothing here is about being fragile. It is about the fact that porcelain has no give: it takes normal chewing indefinitely and a single sharp impact badly.
4. Watch the gum, not just the tooth
Gums recede over the years, and when they recede around a crown or veneer, a line of natural tooth appears above the porcelain. That is a cosmetic problem with no easy fix short of remaking the restoration.
Recession is driven by hard brushing and by gum disease, and both are preventable. Use a soft brush and light pressure, and treat bleeding gums as a signal rather than a normal event.
What about staining and whitening?
Porcelain does not stain the way natural enamel does, and it does not respond to whitening gel at all. Two consequences:
- If your natural teeth darken over the years, the porcelain stays where it is and the match drifts. Occasional whitening top-ups of your natural teeth keep them in step.
- Never whiten *hoping* the restorations will come along. They will not, and the mismatch gets worse.
Composite veneers and fillings are different — they do absorb stain, and they benefit from a professional polish at each check-up.
Realistic lifespans
| Typical life | Usual reason for replacement | |
|---|---|---|
| Porcelain veneer | 10–15+ years | Chipping, or gum recession at the margin |
| Porcelain crown | 10–15+ years | Decay under the margin |
| Composite veneer | 5–7 years | Staining and edge wear |
| Composite filling | 5–10 years | Wear, staining, marginal decay |
Those numbers assume no grinding, daily cleaning between the teeth, and regular check-ups. Remove any one of the three and they fall sharply.
If something goes wrong at home
Keep the record of what was fitted, what material and what shade. If a veneer chips, save the fragment. A small chip can sometimes be polished or repaired with composite rather than remade — but only if it is seen before the exposed edge starts to wear.
How long do veneers and crowns last?
Commonly ten to fifteen years or more for porcelain, five to seven for composite. Grinding, cleaning habits and gum health matter more than the material.
Can you whiten veneers or crowns?
No. Porcelain and composite do not respond to whitening gel. Whiten natural teeth first, then match new work to that shade.
Do I need to floss with veneers?
Yes, daily. Decay at the margin is the most common reason a restoration has to be replaced, and it starts between the teeth.
Can a chipped veneer be repaired?
Small chips can sometimes be polished or patched with composite. Larger ones usually need the veneer remade — save any fragment and get it seen early.
Do I need a night guard?
If you grind or clench, yes, and it is the most valuable thing you can do to protect the work. Ask to be assessed for it during planning.
Still not sure?
Tell us what is bothering you and we will tell you what it would take to fix — before you book anything.
