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Failing Old Silver Filling

CONDITIONS

Replace worn-out silver fillings with safe and durable modern restorations.

About the treatment

Old silver (amalgam) fillings can wear down, crack, or leak over time, leading to sensitivity, decay, or even fractures in the tooth. When an old filling begins to fail, bacteria can seep underneath, increasing the risk of infection and further decay. Replacing failing silver fillings with modern composite or ceramic restorations improves both durability and appearance while protecting your tooth from further damage.

Signs of a Failing Silver Filling

If your old filling is wearing out, you may experience:

  • Tooth sensitivity to hot, cold, or sweet foods.
  • Dark staining or discolouration around the filling.
  • Rough or worn-out edges on the filling.
  • Visible cracks or fractures in the filling or tooth.
  • Pain when biting or chewing, indicating leakage or decay underneath.

Why Do Silver Fillings Fail?

Silver (amalgam) fillings were once widely used, but over time, they can:

  • Expand & Contract – Changes in temperature cause the filling to shift, leading to cracks.
  • Wear Down – Amalgam fillings weaken after years of chewing pressure.
  • Leak or Decay – Bacteria can seep into small gaps, leading to further tooth damage.
  • Cause Tooth Fractures – The rigid nature of silver fillings can put extra stress on the tooth.

Treatment Options for Failing Silver Fillings

  • Aesthetic, tooth-coloured fillings blend seamlessly with your natural teeth.
  • Bond directly to the tooth, reducing the risk of future fractures.
  • The tooth is partially trapped in the jawbone.
  • May cause pain, swelling, and difficulty cleaning the area.
  • Recommended if the filling has caused significant tooth damage.
  • Covers and protects the entire tooth for long-term stability.
  • If decay has spread under the filling into the pulp, a root canal may be needed before restoration.

Preventing Filling Failure

  • Maintain good oral hygiene to prevent decay around the filling.
  • Visit your dentist regularly for check-ups and early detection.
  • Avoid chewing on hard foods that can damage fillings.
  • Consider replacing old fillings before they start failing.

Frequently Asked Questions (FAQs)

How long do silver fillings last?

Amalgam fillings can last 10-15 years, but wear and tear can shorten their lifespan.

If they are intact and functioning well, replacement isn’t necessary, but composite fillings provide aesthetic and functional benefits.

Yes, modern composite and ceramic fillings are durable and bond better to the tooth.

Most patients recover within 7-10 days, with swelling subsiding after 2-3 days.

Amalgam fillings contain mercury, but they are generally safe. However, if broken or leaking, they should be replaced promptly.

No, the procedure is quick and painless with local anaesthesia ensuring comfort.

Get in Touch

Interested in a whiter smile? Contact us to discuss your options.

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