Root Canal Treatment vs Extraction — Understanding Your Choice
When a tooth is severely infected or damaged at the root, you may face a choice between root canal treatment and extraction. This guide explains both options honestly.
When the pulp — the soft tissue inside the root of a tooth that contains nerves and blood vessels — becomes infected or irreversibly damaged, the tooth can no longer heal on its own. This usually happens because of deep decay, a cracked tooth, or trauma.
At this point, you typically have two main options:
Root canal treatment (RCT) — clean out the infected pulp, disinfect the root canals, and seal the tooth so it can remain in your mouth
Extraction — remove the tooth, followed (if desired) by a replacement such as an implant, bridge, or denture
Both are valid options. The right choice depends on the condition of the tooth, your overall oral health, your preferences, and sometimes cost. This leaflet explains both options fairly so you can make an informed decision with your dentist.
Option 1 — Root canal treatment (RCT)
Root canal treatment removes the infected or inflamed pulp tissue from inside the tooth roots, disinfects the canals, and fills them with a rubber-like material to seal them. The tooth is then restored — usually with a filling and, for back teeth, a crown — so it can continue to function normally.
What to expect during treatment:
Local anaesthetic is given so you should not feel pain during the procedure
A rubber sheet (dental dam) is placed around the tooth to keep it clean and dry
Fine instruments are used to clean and shape each root canal
The canals are filled and sealed
A crown or large filling is placed at a follow-up appointment
Most cases take 1–3 appointments depending on complexity; specialist cases may take longer
Benefits:
Keeps your natural tooth — generally, keeping a tooth is better than losing one
Avoids a gap and the need for a replacement (implant, bridge, or denture)
Preserves the bone around the tooth root
A successfully treated tooth can last many years — sometimes a lifetime
Resolves infection and relieves pain
Drawbacks and risks:
More complex and often requires more appointments than an extraction
Higher immediate cost — NHS Band 2 (£75.30) covers basic RCT; more complex cases may be NHS Band 3 (£319.10) or require referral. Privately, costs typically range from £500–£1,500 depending on the tooth and whether a specialist endodontist is needed. The exact cost will be confirmed on your individual treatment plan. Fees vary between practices and depend on the complexity of your case.
A crown is usually needed after RCT on back teeth, adding to the cost
Success is not guaranteed — overall success rates are approximately 85–95% over 5 years, but some teeth may re-infect or fail
A treated tooth can become more brittle over time and is at greater risk of fracture without a crown
In some cases, root anatomy is complex, and full cleaning may not be possible
If the treatment fails, re-treatment, apicectomy (minor surgery), or eventual extraction may be needed
Approximate lifespan: A well-restored root-treated tooth can last 10–20+ years, and many last a lifetime. Outcome depends heavily on the quality of the final crown and ongoing oral hygiene.
Option 2 — Extraction
Extraction means removing the tooth entirely. For most single-rooted teeth, this is a straightforward procedure done under local anaesthetic in one appointment. Multi-rooted back teeth or teeth with curved roots may be more involved.
What to expect:
Local anaesthetic numbs the area — you will feel pressure but should not feel sharp pain
The dentist loosens the tooth and removes it
You bite on gauze to encourage clotting
Healing of the socket takes approximately 1–2 weeks for the gum, and several months for the underlying bone
Benefits:
Definitively resolves the problem with the tooth in one appointment
Often lower immediate cost — NHS Band 2 (£75.30); privately around £200–£400 for a straightforward extraction, or £300–£500 for a surgical extraction. The exact cost will be confirmed on your individual treatment plan. Fees vary between practices and depend on the complexity of your case.
No risk of the same tooth becoming re-infected
Appropriate when a tooth is too damaged, too broken down, or has a very poor long-term prognosis
Drawbacks and risks:
You lose a natural tooth — this is permanent and irreversible
The gap can cause neighbouring teeth to drift and the opposing tooth to over-erupt over time
Jawbone begins to shrink (resorb) in the area where the tooth was, which can affect the shape of your face over many years
Replacing the tooth costs more overall — especially if you choose an implant (typically £2,500–£4,000) — and takes longer
Some patients choose not to replace the tooth; this is acceptable for some positions but not recommended for front teeth or teeth that are important for chewing
Post-extraction risks: dry socket (painful delayed healing, roughly 1 in 20 cases, more common in lower back teeth and smokers), infection, swelling, temporary jaw stiffness
Approximate lifespan: An extraction solves the problem permanently, but the long-term impact of losing the tooth and any replacement costs should be considered.
Is keeping the natural tooth always better?
Dentists generally prefer to keep natural teeth where possible — a healthy natural tooth is usually stronger, more comfortable, and longer-lasting than any artificial replacement. Professional guidelines support this principle.
However, this is not always the right answer. Sometimes extraction and replacement is the wiser long-term choice, for example:
The tooth is so severely damaged that root canal treatment has a very low chance of success
There is significant bone loss around the root from gum disease
The tooth has a vertical root fracture (a split down the root) — these cannot be successfully treated
The cost and complexity of saving the tooth significantly exceeds the cost of extraction and a replacement
The patient's overall oral health means a neighbouring implant or bridge would be a more predictable long-term solution
Your dentist should give you a realistic assessment of the tooth's prognosis before recommending root canal treatment. It is entirely reasonable to ask: "What are the realistic chances this tooth will still be working well in 10 years?"
What affects the success of root canal treatment?
Research consistently shows that certain factors predict better or worse outcomes from RCT:
Better outcomes are associated with: vital teeth (pulp not yet dead), no periapical infection visible on X-ray before treatment, good final restoration (crown), high-quality technical procedure, and good oral hygiene
Worse outcomes are associated with: established periapical infection (abscess), previously failed root canal treatment (re-treatment cases), complex root anatomy, poor final restoration, cracks extending into the root, and smoking
Your dentist or a specialist endodontist will be able to give you a realistic prognosis for your specific tooth. Do not hesitate to ask for this information before deciding.
Questions to ask your dentist
Before making your decision, consider asking:
What is the realistic chance that root canal treatment will succeed for this tooth?
How many root canals does this tooth have, and is it straightforward or complex?
Would you refer me to a specialist endodontist, or would you carry out the treatment?
If root canal treatment fails, what are my options then?
If I have the tooth out, what do you recommend for replacing it?
What happens if I have the tooth out and do not replace it?
What are the full costs of each option — including the crown after RCT?
Does the tooth have any cracks that might affect the prognosis?
NHS charges are set nationally and reviewed annually. Private fees are a guide — your dentist will confirm the exact cost on your treatment plan before you agree to proceed. NHS availability varies by area and not all treatments are available on the NHS. Your dentist will discuss the best option for your specific case.
This leaflet is for general information only and does not replace professional dental advice. It is intended to support — not replace — the discussion with your dentist about your individual options, risks, and treatment plan. Your dentist will confirm what is suitable for your specific circumstances before you agree to any treatment.
References
Aligned with guidance from: NICE, FGDP(UK), SDCEP, AAE (American Association of Endodontists — referenced for evidence base).