Root canal or extraction? How to decide when a tooth is badly damaged

Quick answer: save the tooth when you can

As a general rule, keeping your natural tooth with a root canal is the better choice whenever the tooth can still be restored. A natural tooth protects your bite, your jaw bone, and the alignment of the teeth around it — and there is no gap to fill afterward. Extraction becomes the better option when the tooth is cracked below the gum line, has too little healthy structure left, or sits in bone that is too damaged to support it. Only an exam and X-ray can confirm which situation you are in.

What a root canal actually does

Inside every tooth is a soft core (the pulp) containing the nerve and blood supply. When deep decay, a crack, or repeated dental work lets bacteria reach the pulp, it becomes inflamed or infected — that is the source of throbbing toothache and sensitivity to heat. A root canal removes the infected pulp, cleans and disinfects the inside of the tooth, and seals it. The outer tooth stays in place and keeps doing its job.

Because the nerve is gone, the severe pain stops. The tooth is then usually protected with a crown, especially on back teeth, because a treated tooth becomes more brittle and can fracture without that cap. The American Dental Association has a clear plain-language overview of what a root canal involves if you want more background.

When extraction is the right call

Sometimes a tooth is too far gone to save, and removing it is the healthiest, most predictable option. Extraction is usually recommended when:

• The tooth is fractured vertically or cracked below the gum line
• There is not enough solid tooth left to hold a crown
• Severe gum disease has destroyed the bone supporting the tooth
• A wisdom tooth is impacted or causing repeated problems
• The infection is severe and a root canal has already failed

If you are dealing with sudden, severe pain or swelling, that is a different situation — see our guide on when tooth pain is a dental emergency, and don't wait, because infections can spread.

Pain and recovery: what each one feels like

A common myth is that root canals are agonizing. In reality, a modern root canal is done under local anaesthetic and feels much like getting a filling — and it relieves the pain you came in with. Mild tenderness for a day or two afterward is normal.

An extraction is also painless during the procedure thanks to anaesthetic, but recovery is different: you have an open socket that needs to clot and heal, often with more swelling, a soft-food period, and care to avoid dry socket. Healing the gap takes longer than recovering from a root canal.

The real cost comparison (don't stop at the extraction price)

On paper, an extraction is cheaper than a root canal plus crown. But that is not the full picture, because a missing tooth usually needs to be replaced. Once you add the cost of replacement, the math often flips:

• Root canal + crown — higher up front, but you keep your own tooth and there is nothing more to buy
• Extraction + dental implant — often the most expensive total path (see implant costs in NL)
• Extraction + bridge — mid-range, but involves shaping the two neighbouring teeth
• Extraction + denture — lowest replacement cost, removable

For coverage questions, the insurance and CDCP page explains what is typically covered — root canals on eligible teeth and basic dentures are often included, while implants generally are not.

What happens if you leave a gap?

Skipping replacement after an extraction can cost more later. Neighbouring teeth drift into the space, the opposing tooth can over-erupt, and the jaw bone in that area gradually shrinks. That can shift your bite and make future tooth replacement harder and more expensive. If a tooth must come out, plan its replacement at the same time — your options include implants, bridges, and dentures.

How to decide on your tooth

The honest answer is that the right choice depends on the specific tooth, and you cannot judge it from a photo or a search result. A short exam with an X-ray shows how much healthy tooth remains, the state of the bone, and whether the tooth can be predictably saved. From there your dentist can lay out both options with real costs so you can choose with confidence.

If you have a painful, broken, or deeply decayed tooth, call (709) 466-7001 or visit the root canal treatment page to understand your options. Same-day assessments are available for urgent situations.