Root canal treatment or extraction: how to decide

"Would it just be simpler to have it out?" is a question we hear every week. Sometimes the honest answer is yes. More often it is no — but the decision deserves a proper assessment of the tooth and a clear view of what each path involves, not a snap judgement in a moment of pain.

Start with the prognosis of the tooth

The first question is whether the tooth can be saved predictably. We look at:

• How much sound tooth is left. A tooth needs enough solid structure above the gum to hold a crown after treatment.
• Whether there is a crack. A crack confined to the crown can be managed; one that runs down the root cannot be repaired.
• The gum and bone around the tooth. Advanced gum disease can undermine an otherwise treatable tooth.
• The canal anatomy and any previous treatment. Curved, blocked or previously treated canals are more demanding, but they are exactly what microscope-assisted treatment is for.

A tooth with a good prognosis is almost always worth keeping. A tooth with a hopeless prognosis should be removed, and we will tell you which is which.

What extraction really involves

Extraction is not the end of the story. A gap left unfilled lets neighbouring teeth drift and the opposing tooth over-erupt, and the bone of the socket shrinks within months. Replacing the tooth means an implant, a bridge or a denture — each with its own surgery, cost, maintenance and lifespan, and none of which feels or functions quite like the original. Implants are an excellent solution when a tooth is truly lost; they are not a reason to lose a tooth that could have been kept.

Comparing the two paths

• Time. Root canal treatment plus a crown typically takes two or three appointments over a few weeks. An extraction and implant takes several appointments over four to nine months while the bone heals.
• Comfort. Both are done under local anaesthetic. Root canal treatment is usually less uncomfortable afterwards than a surgical extraction.
• Cost. Treating and crowning a tooth generally costs less than extracting it and placing an implant, and a tooth needs no replacement if it is kept.
• Longevity. Well-treated and well-restored teeth, and well-placed implants, both last many years. The natural tooth keeps its ligament and its sense of bite pressure, which an implant cannot replace.

Common myths

• "Root canal treatment is agony." With modern anaesthetic it is not. Most of the fearsome stories come from the pain of the infection beforehand, not from the treatment.
• "A root-treated tooth is dead and will crumble." The tooth loses its nerve, not its strength. Protected by a crown, it functions normally.
• "Root canal treatments always fail eventually." Most do not. Those that do can usually be retreated.
• "It is cheaper to pull it." Only if you never replace it.

Questions to ask before you decide

1. What is the realistic chance of this tooth lasting ten years if it is treated?
2. What will it cost to treat and crown the tooth, compared with removing and replacing it?
3. Is there a crack, and if so where does it run?
4. Would a microscope-assisted assessment change the answer?

Making the decision

Our role is to assess the tooth honestly and give you the options in writing, with the likely success of each. The decision is then yours, made together with your own dentist, who will restore the tooth or replace it. See saving your natural tooth for how we approach the assessment, and retreatment if the tooth has been treated before.