Dental work does not have an expiry date. It needs replacing when it has failed or is failing, and the skill is in telling that apart from work that is simply old and doing its job perfectly well. Fillings, crowns and bridges last for years but not forever, and a restoration with a leaking edge, decay underneath or a visible worn margin should be replaced before the tooth beneath is harmed, which is why the dentist checks old work at each exam and with periodic x-rays.
What usually brings up replacing old dental work
- Dark margins appearing around old crowns
- A filling that has chipped or worn down
- Recurrent decay at the edge of existing work
- Old work that no longer matches after whitening
- A bridge that has become loose
- Sensitivity around an existing restoration
Treatment paths a dentist may weigh
- Monitoring restorations that are sound but old
- Repairing rather than replacing where possible
- Replacing individual failing restorations
- Planning a phased sequence rather than doing everything at once
- Matching new work to a shade you are happy with long term
Start with an assessment
Pick the closest option.
Common questions
Replacing Old Dental Work: questions people ask
Should I replace all my old fillings?
No. Replace what has failed or is failing. Replacing sound restorations removes more tooth every time and shortens the tooth's overall life.
How do I know if a crown needs replacing?
Signs include a dark line at the margin with decay beneath, recurring sensitivity, looseness, or a fracture. An X-ray and examination distinguish these from simple staining.
My old work does not match after whitening. What now?
Restorations do not lighten, so visible ones may need replacing to match the new shade. Plan whitening before replacement, not after: otherwise it is done twice.
Can I do it gradually?
Usually yes, prioritising what is actually failing. Ask for the plan in priority order so you can spread it sensibly.
What signs suggest old dental work needs replacing?
Dark margins around old crowns. A filling that has chipped or worn down. Recurrent decay at the edge of existing work. Old work that no longer matches after whitening. A bridge that has become loose. Sensitivity around an existing restoration. Dental work does not have an expiry date.
How do I avoid replacing more than necessary?
Monitor restorations that are sound but old. Repair rather than replace where possible. Replace individual failing restorations. Plan a phased sequence rather than doing everything at once. Match new work to a shade you are happy with long term. An examination and X-rays establish what can be kept.