Root Canal or Extraction? How to Decide Whether to Save a Tooth
- Star Light Dental
- June 11, 2026
- [email protected]
When the nerve inside a tooth is infected or has died, there are only two real choices: clean out the infection and keep the tooth, or take the tooth out. When you are in pain, just pull it can sound like the quick, cheap answer.
Sometimes it is. More often, extraction is the start of a longer and more expensive story. Here is how to think the decision through.
1. What Each Option Involves
Root canal treatment removes the infected or dead nerve tissue from inside the tooth. The canals are cleaned, disinfected and sealed, and the tooth is then restored, usually with a crown on back teeth. It takes one to three visits and you keep your own tooth. Our article on how a root canal saves a dead tooth explains the steps.
Extraction removes the whole tooth. It is usually done in a single visit, and the socket heals over a few weeks.
2. Does a Root Canal Hurt More?
This is the fear that drives most people towards extraction, and it is out of date. With modern local anaesthetic a root canal feels much like having a long filling. The pain people associate with root canals is the pain of the infection beforehand, which is exactly what the treatment relieves. Recovery from either option usually involves a few days of tenderness. Sedation is available if you are anxious.
3. The Real Cost Comparison
On the day, an extraction costs less than a root canal and crown. The catch comes afterwards. A gap lets the neighbouring teeth drift, the opposing tooth over-erupt and the bone shrink, so most gaps should be filled.
Once you add the cost of an implant, bridge or denture, extraction is frequently the more expensive route over ten years, and the replacement is never quite as good as the tooth you started with. Compare the whole pathway, not just the first appointment.
4. When Saving the Tooth Makes Sense
- there is enough healthy tooth left to rebuild
- the supporting bone and gums are sound
- the tooth matters for your bite or your smile
- you would otherwise need to replace it anyway
Root canal treatment has a high success rate, generally quoted at around 85 to 95 per cent, and a well-restored tooth can last for decades.
5. When Extraction Is the Better Call
- the root is cracked vertically, which cannot be repaired
- decay extends so far below the gum that the tooth cannot be restored
- advanced gum disease has destroyed the bone holding the tooth
- a previous root canal has failed and re-treatment has a poor outlook
- the tooth is a wisdom tooth or another tooth with little function
In those situations, spending money on a tooth with a poor future is not good advice, and we will say so.
6. Questions to Ask Before You Decide
- What is the long-term outlook for this tooth if we save it?
- Will it need a crown afterwards, and what will that cost?
- If it comes out, what are my options for the gap, and what do they cost?
- What happens if I do nothing? An infected tooth does not settle down permanently. See our article on dental abscesses.
We will give you written quotes for both pathways so that you can compare them properly. Medipay and Afterpay payment plans are available.
Get an Honest Opinion
The right answer depends on the individual tooth, and that takes an examination and an X-ray. Call Star Light Dental in Prestons on (02) 9432 2833 or book online. If you are in pain, same-day emergency appointments are available most days.