Root canal cost can vary across the UK, and patients often find conflicting figures online.
This guide clarifies the often-confusing world of root-canal pricing. It outlines typical fee ranges, shows why back teeth tend to cost more than front teeth, and explains how retreatment can alter the total.
You’ll also see how conventional therapy compares with surgical alternatives such as an apicectomy, and when a protective crown enters the picture—along with the ways crown materials can influence the final bill.
By exploring each of these factors, you’ll gain the knowledge needed to budget confidently for the treatment option that best suits your tooth and circumstances.
Root Canal Cost Guide: Average UK Treatment Fees
For most patients, root canal treatment cost ranges between £300 and £800 per tooth, with several factors nudging a case toward the lower or upper end of that spectrum:
- Case complexity – Teeth containing multiple or sharply curved canals demand more chair time and specialised instrumentation.
- After-care materials and technology – Advanced sealing cements, high-magnification microscopes and ultrasonic cleaning systems can add to the overall fee.
- Follow-on restoration – If a crown rather than a filling is required, the total cost rises.
So, how much is it for root canal treatment if everything goes smoothly? Expect to pay around £450 – £550 for a straightforward incisor or premolar, and £600 – £900 for a complex molar that involves extra canals and longer surgery time.
Why Tooth Type Matters: Front Teeth vs Molars
The price difference between front teeth and back teeth comes down to anatomy:
- Incisors and canines (front teeth) – One easy-to-access canal; simpler procedure.
- Premolars – Often two canals; moderate complexity.
- Molars – Three to five canals, tricky angles, extra time under the microscope.
Because of this anatomical complexity—multiple canals, tricky angles, and longer chair time—root canal treatment cost for molars can be nearly double that of a front tooth, and fees for these back teeth generally sit at the upper end of the national price range.
Re-Treatment Costs: When a Root Canal Needs a Second Chance
Occasionally an initial root-canal therapy doesn’t succeed—often because of an undetected canal or persistent infection. Correcting this means removing the old filling, cleansing the canals more thoroughly and resealing the tooth.
Most practices add £150 – £300 to the original fee, or charge an hourly microscope surcharge of about £200. Given the extra time and advanced equipment involved, retreating a molar usually falls in the £650 – £900 price bracket.

Root Canal vs Apicectomy: Procedure, Price and When Each Is Needed
Persistent infection can be tackled in two main ways: from the inside of the tooth with a repeat root-canal procedure, or from the outside of the root with a surgical apicectomy. Understanding how these techniques differ—in approach, complexity and cost—helps you and your dentist choose the right path to save your tooth.
Root Canal — Inside-Out Solution
A root canal treats infection inside the tooth. The dentist opens the crown, removes the inflamed pulp, disinfects every canal and seals the space to prevent reinfection. Success rates are high when all canals are thoroughly cleaned and filled.
Apicectomy — Tip-Focused Surgery
An apicectomy targets persistent infection at the very end of the root when internal access is blocked. The gum is gently lifted, the last few millimetres of root are removed, and a retro-seal is placed. Typical surgical fee: about £300 for a front tooth and £425 for a back tooth. Outcomes are favourable when the procedure is reserved for specific anatomical challenges.
Treatment Sequence & Clinical Rationale
Most dentists retry conventional therapy first; an apicectomy becomes the back-up when blockages, fractures or unusual anatomy prevent retreatment. It’s less common but invaluable for saving a tooth that would otherwise face extraction.
Adding a Crown: Combined Root Canal and Crown Cost in the UK
Posterior teeth are subjected to heavy chewing forces, so a protective crown is usually recommended after root-canal therapy to prevent future fracture. The final fee is influenced chiefly by the crown material you choose. Composite resin offers an economical, short-term solution; porcelain-fused-to-metal (PFM) provides good strength but may reveal a dark margin over time; fully porcelain or zirconia crowns deliver the most natural aesthetics and long-term colour stability, though laboratory craftsmanship and material costs are higher.
Preparation complexity, shade-matching appointments and any underlying core build-ups can also affect the total. For a full breakdown of how each option is priced—and practical advice on balancing durability, appearance and budget—see our dedicated Dental Crown Cost Guide.
Summary: Key Takeaways on Root Canal Treatment Costs
- A typical root canal treatment cost in the UK falls in the range of £300 and £800 per tooth.
- Molar treatments cost more than incisors because they have extra canals and complex anatomy.
- Retreatment carries a higher price tag due to additional time and technology.
- Surgical apicectomy is a targeted, root-end option if conventional therapy fails, priced at roughly £300–£425.
- Factor in a crown for back teeth, which can raise the total bill by several hundred pounds.
A clear understanding of these cost drivers puts you in control when planning endodontic care. If you’d like a personalised estimate—tailored to your specific tooth, restoration needs and long-term goals—get in touch with Smiledent Dental Practice in North London. Our team can walk you through every option, outline transparent fees, and help you choose the most sensible route to a healthy, pain-free smile.