When a tooth is badly infected there are two honest options: treat the inside of it and keep it, or take it out. The decision gets made on the state of the tooth, not on a rule, and it is worth understanding before you are sitting in the chair choosing under pressure.
Here is what each route involves, what each costs over the long run, and what to ask.
What a root canal actually is
Inside every tooth is a soft core of nerve and blood vessels. When decay or a crack lets bacteria reach it, that tissue becomes inflamed or infected, which is the pain that wakes people at three in the morning. A root canal removes that tissue, cleans and shapes the canals, and seals them.
The tooth itself stays. It is dead in the sense that the nerve is gone, but it still works. Modern root canal treatment is done under numbing and most people describe it as no worse than having a filling, just longer. The reputation belongs to the pain that brings people in, not to the procedure that relieves it.
Why a crown usually follows
A root treated back tooth is more brittle than a live one and has usually lost a lot of structure to decay and access. Without a crown it is at real risk of splitting, and a split tooth normally cannot be saved.
So when you compare the costs, compare properly: a molar root canal plus a crown against an extraction plus whatever replaces the tooth. Comparing the root canal alone against the extraction alone is how people end up feeling misled later.
When extraction is the better answer
Some teeth are not worth saving, and a good dentist will say so. A tooth cracked below the gumline, one with too little structure left to hold a crown, or one with severe bone loss from gum disease has a poor outlook, and spending two thousand dollars on it buys time rather than a solution.
Extraction is also reasonable when a tooth is a wisdom tooth doing nothing useful, when the cost of saving it is genuinely out of reach, or when a specialist assesses the odds as low. What matters is that it is a considered decision rather than the quickest one.
- Cracked below the gumline, or split vertically: usually not savable
- Too little tooth left above the gum to hold a crown: often not savable without extra procedures
- Advanced bone loss around the root: poor long term outlook
- A wisdom tooth with no useful function: extraction is often simplest
What happens after a tooth comes out
A gap at the back of the mouth is not always a problem, but teeth do drift into space over time, and the tooth opposite can over erupt. Replacing a missing tooth is usually done in one of three ways.
An implant is a titanium post placed into the bone with a crown on top, and it is the closest thing to the original tooth, at the highest cost and over several months. A bridge uses the neighbouring teeth as anchors, which means preparing those teeth, and is quicker. A partial denture is removable, cheapest and least comfortable. All three have a place.
The questions to ask before deciding
Ask what the odds are for this specific tooth, in this specific state, in this dentist's hands. Ask what the total cost is for each route including everything that follows. And ask what happens if you do nothing for six months, because with an infection the answer is usually that it gets worse, but you deserve to hear it said plainly.
If you want a second opinion before you decide, and on a molar that is a sensible thing to want, our directory lists every dental practice in the United States by town or ZIP code. Take the written treatment plan with you so the second dentist prices the same work.
- What is the realistic outlook for this tooth if we treat it?
- What is the total cost of each option, including the crown or the replacement?
- Would you refer me to an endodontist for this one, and would that improve the odds?
- What happens if I wait?
The short version
- A root canal removes infected tissue and keeps the tooth, usually under numbing.
- A back tooth normally needs a crown afterwards, so count that in the price.
- Cracks below the gumline and severe bone loss make saving a tooth unlikely.
- Replacements are implant, bridge or partial denture, in descending order of cost.
- Ask for the odds on your specific tooth and the total cost of each route.
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Frequently asked
Does a root canal hurt?
The treatment is done with numbing and is usually comparable to a filling, only longer. Soreness for a few days afterwards is normal and responds to ordinary painkillers. The severe pain people associate with root canals is generally the infection that led to it.
How long does a root treated tooth last?
Often many years, and frequently for life, particularly when it is crowned promptly and the surrounding gum is healthy. Outcomes are worse when the crown is delayed, since the tooth can split in the meantime.
Is an implant always better than a bridge?
No. An implant preserves the neighbouring teeth and behaves most like a natural tooth, but it needs enough bone, takes months and costs more. A bridge is faster and can be the better answer if the neighbouring teeth already need crowns. Your dentist should explain why they are recommending one over the other.
This is general information to help you ask better questions, not a diagnosis. Anything happening in your own mouth needs a dentist who can look at it.