Comparing the two
Root canal or take the tooth out?
Root canal treatment keeps your own tooth, which is almost always the better outcome, because nothing replaces a natural tooth as well as the tooth itself. Extraction is quicker and costs less on the day, and it leaves a space that usually needs replacing later. Some teeth are genuinely not worth saving, and a dentist should tell you when yours is one of them.
Start from what a natural tooth is worth
The Better Health Channel puts the principle in one sentence: no therapy or replacement will last as well as a healthy tooth. That is the starting point for this decision, and it is worth holding onto, because the pressure in the room usually runs the other way. Extraction is faster, it is finished on the day, and it costs less at the counter. All of that is true, and none of it is the whole picture.
A tooth is not only a thing you chew with. It holds its own space, it stops its neighbours drifting, it keeps the bone around it, and it tells you when something is wrong. A replacement can do the first of those well. It does not do the rest, and everything that replaces a tooth will itself need maintaining or replacing across a lifetime.
So the question is not really "which treatment is better". It is whether this particular tooth can be saved in a way that lasts.
How do they compare?
| Root canal treatment | Extraction | |
|---|---|---|
| What happens to the tooth | It stays in your mouth and keeps doing its job | It is removed, and the space stays empty until something fills it |
| Appointments | More than one in most cases, plus a crown afterwards for back teeth | Usually one, plus a review |
| Cost on the day | More | Less |
| Cost over ten years | Often less, because nothing has to be replaced | Depends entirely on what replaces the tooth, and whether it is replaced at all |
| What it does to the teeth either side | Nothing | They can drift and tip into the space over time |
| Bone | Kept | The ridge shrinks after the tooth comes out, which can limit what is possible later |
| If it fails | Can sometimes be re-treated, and extraction is still available | Cannot be undone |
When is extraction the right answer?
Saving teeth is the default, not a rule. There are teeth where removing it is the honest recommendation, and you should expect to be told plainly when yours is one.
- The tooth is split. A crack running below the gum line cannot be sealed, and treatment on a tooth like that buys months rather than years.
- There is not enough tooth left to rebuild. A root canal fills the inside. It does not give you back a wall that has broken away, and something has to hold a crown.
- The bone has already gone. Where advanced gum disease has destroyed the support around a tooth, the tooth is loose regardless of what is done inside it.
- It has been treated before and the infection is back. Re-treatment is sometimes worth trying. Sometimes it is not, and the honest version of that conversation includes the odds.
- A wisdom tooth. A tooth at the very back that is hard to clean and hard to treat is usually better out. That has its own page.
The part of extraction people are not told about
The decision looks cheaper on the day because the second half of it happens later. Once a tooth is out, the ridge of bone that held the root shrinks, and the Better Health Channel notes that gum and bone take two to three months just to settle enough for anything to be fitted. Meanwhile the teeth either side can tip towards the space and the tooth above or below can drift down into it.
None of that is a reason to panic, and plenty of people live perfectly well with a back tooth missing. It matters because it changes the maths. If you are going to replace the tooth, replacing it is part of the cost of the extraction rather than a separate decision, and the three ways of replacing it each have their own trade-offs. If you are not going to replace it, decide that deliberately rather than by default.
How is the decision made at Y3 Smiles Dental?
With an examination and an x-ray, because nobody can tell you which of these is right by looking at the outside of a tooth. What we are checking is how much sound tooth is left above and below the gum, whether the root is cracked, how much bone is holding it, and whether the tooth has a job to do in your bite.
You will get both options with the reasons for each, including what the tooth is likely to do over the next ten years either way. Principal dentist Dr Fatima Kurnaz, a general dentist rather than a registered specialist, reviews the clinical information on this page, and complex root canal cases are referred on where that is the right thing to do.
Other questions people ask
Is it ever better to just take the tooth out?
Yes, and any dentist who says otherwise is not being straight with you. A tooth that is split below the gum, has too little structure left to rebuild, or sits in bone that gum disease has already destroyed is not worth saving, and putting money into it delays the real decision. There is also the case where a tooth has been treated before, the infection has come back, and re-treatment is unlikely to hold.
How successful is root canal treatment?
For most teeth, well done and properly restored afterwards, it works and the tooth stays in use for years. There is no honest single number for your tooth, because the outcome depends on how much structure is left, whether the infection has reached the bone, and whether a crown goes on afterwards. Your dentist should tell you where your particular tooth sits before you decide.
Why does the dentist want to crown it afterwards?
Because a back tooth that has had root canal treatment has usually lost a lot of structure and the remaining walls are more likely to split under chewing. The Better Health Channel describes posts and crowns as common after treatment for exactly that reason. Front teeth often do not need one. If a crown is recommended, ask why for that specific tooth.
Will the tooth go dark?
It can, particularly a front tooth, because the tooth no longer has a living pulp inside it. There are ways to address it. Raise it at the time rather than discovering it later, because it changes what gets planned.
What if I have the tooth out and leave the gap?
That is a real option for some back teeth, and plenty of people live with a gap without trouble. What you should know first is that the teeth either side can tip into the space and the opposing tooth can drift down over the years, and that the bone where the root was shrinks once the tooth is gone. Both make replacing the tooth later harder than replacing it now.
Does an extraction hurt more?
Neither should hurt. Both are done under local anaesthetic, and the tooth is fully numb before anything starts. Afterwards is different: an extraction leaves a socket that needs to heal and is usually sorer for a few days, where a root-treated tooth is often just tender to bite on for a while.
Can I take some time to decide?
For a decision this final, usually yes, and we will say so if not. What you cannot do is leave an infection to settle by itself, because it will not. If there is swelling, fever or spreading pain, that part is dealt with now and the decision about the tooth comes after.