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Root Canal or Extraction: How to Decide

When a tooth is badly decayed or infected, you usually have two options. Here is how dentists weigh them up — and why saving the tooth is often, but not always, the better call.

By Dr. Divya Sharma · 20 August 2026 · 6 min read

When the nerve inside a tooth is infected or a tooth is broken down close to the gum, the decision usually comes down to two paths: root canal treatment and a crown, or extraction followed by an implant or bridge.

Neither is automatically right. Here is how the choice is made.

The case for saving the tooth (root canal + crown)

  • Nothing replaces a natural tooth as well as the natural tooth. It keeps your natural bite, the bone around it, and the gum contour.
  • It is usually faster and less invasive than removing the tooth and later placing an implant.
  • Success rates are high for a well-done root canal finished with a crown — commonly quoted in the region of 85–95% over many years.

Root canal treatment makes most sense when:

  • Enough sound tooth structure remains to build a crown on
  • The root and surrounding bone are healthy
  • The tooth is not cracked down into the root

The case for extraction

Extraction becomes the better option when:

  • The tooth is cracked vertically into the root — these do not have a good long-term outlook
  • There is too little tooth left above the gum to hold a restoration
  • There is severe bone loss from gum disease around that tooth
  • A previous root canal has failed twice and re-treatment is unlikely to succeed
  • The tooth is a wisdom tooth or a non-functional tooth that does not need replacing at all

After extraction, the gap is usually restored with an implant (the closest thing to a natural tooth) or a bridge. Leaving a gap long-term can let neighbouring teeth drift and the opposing tooth over-erupt.

What a good consultation should give you

  • A clear diagnosis with an X-ray
  • An honest assessment of the tooth's long-term prognosis, not just whether it can be patched up today
  • The cost and timeline of both paths — root canal + crown versus extraction + implant
  • A recommendation, with the reasoning explained

The bottom line

For most restorable teeth, saving the tooth is the better long-term decision. But a tooth with a poor prognosis is not worth heavy investment — sometimes a planned extraction and a good implant is the more sensible use of your money. Ask your dentist to walk you through both options before you decide.

This article is general information, not a diagnosis. Book a consultation to discuss your specific tooth.

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