Dental restorations like fillings, crowns, and dentures aren’t meant to last forever — but with proper care, they can last for many years. Still, there comes a time when they need to be repaired or replaced to keep your mouth healthy and functional.
So, how long do they usually last? And how do you know when it’s time for a replacement? Let’s break it down.
⏳ How Long Do Fillings Last?
- Composite (tooth-coloured) fillings: 5–10 years
- Amalgam (silver) fillings: 10–15 years
Factors that affect lifespan:
- Location of the filling (molars take more pressure)
- Oral hygiene habits
- Grinding or clenching your teeth (bruxism)
When to replace a filling:
- Cracks, chips, or wear
- Tooth sensitivity or decay under the filling
- Filling has fallen out or loosened
👑 How Long Do Crowns Last?
- Porcelain or ceramic crowns: 10–15 years
- Porcelain-fused-to-metal crowns: 10–20 years
- Zirconia or gold crowns: Up to 20+ years
Signs it may be time to replace a crown:
- Pain or sensitivity around the crowned tooth
- Visible wear, cracks, or loose fit
- Gum recession or decay under the crown
🦷 How Long Do Dentures Last?
- Full or partial dentures: 5–10 years on average
Even with good care, dentures wear down, and your mouth’s shape changes over time, leading to poor fit or discomfort.
You may need a replacement or reline if you notice:
- Soreness or irritation
- Difficulty chewing or speaking
- Changes in facial appearance or fit
- Loose or shifting dentures
🔁 Keep Up with Regular Checkups
Your dentist can spot early signs of wear or damage and let you know when it’s time to repair or replace a restoration. Routine checkups also help prevent new issues from developing around old dental work.
🇨🇦 A Note for Canadian Patients
Most private dental plans in Canada provide coverage for replacement fillings, crowns, and dentures after a set number of years. Check your policy or ask your dental clinic to submit a pre-authorization if you’re unsure.
Time for a Checkup? Let’s Make Sure Everything’s in Good Shape
We help patients maintain their dental restorations so they last as long as possible. If something feels off — or you haven’t had your dental work checked in a while — we’re here to help.
👉 Book a consultation today and keep your smile strong and healthy.