Why a "root canal cost" question almost never has one answer
Patients arrive at this question expecting a number, and they are often frustrated that no honest clinician will give them one over the phone. There is a reason for that, and it is not evasion. A root canal on a single-rooted front tooth and a root canal on a four-canal lower molar share a name and almost nothing else — different anatomy, different time, different difficulty, different failure risk. Quoting one price for "a root canal" is like quoting one price for "a car." So this guide does the opposite of a single number: it gives you the four levers that actually move the price, so that by the end you can place your own tooth on the scale with reasonable accuracy before you ever sit in a chair.
The honest headline, in 2026: NHS root canal is £73.50 whatever the tooth; private root canal treatment runs from around £400 for a simple front tooth to £1,200 and beyond for a complex molar, with a crown usually a separate cost on top. Everything else on this page explains the gap.
How much a root canal costs in the UK — the real ranges
For private treatment in 2026, the picture by tooth type:
Tooth typeNumber of canalsTypical UK private costTypical London costIncisor (front tooth)1£400-£500£500-£650Canine1£400-£550£500-£700Premolar1-2£550-£800£700-£950Molar (back tooth)3-4£700-£1,200£900-£1,400+
These figures cover the root canal procedure itself. A crown — usually needed afterwards to protect the treated tooth — adds £600-£1,400 separately depending on material. The realistic fully restored cost, root canal plus crown, typically runs £1,200-£2,800 privately. The number that matters to you is rarely the root canal figure alone; it is the restored total, and a clinic that quotes you only the first half is not giving you the real picture. At DWL, root canal treatment is £550–£950 depending on the tooth, and crowns, inlays and onlays are £750–£1,200 depending on the type; we write the full costed plan — procedure and crown together — before any commitment, in writing, with what is and is not included spelled out.
NHS vs private — the same fee for very different time
The NHS root canal price is identical regardless of tooth: £73.50 (Band 2, 2026). The same charge covers 45 minutes on a simple incisor or two and a half hours on a complex molar — which tells you everything about the trade-off.
NHS root canal is far cheaper. Appointments are typically shorter, rubber dam isolation (which improves long-term outcomes) is not always used, and complex molars are often referred onward to specialists at additional cost. Waiting times run to weeks or months. Private root canal costs more, but the time allocation differs in kind: a complex molar may be booked across two 90-minute visits, with rubber dam, magnification, and the patience to find every canal — a missed canal being the single most common cause of root canal failure.
The honest clinical view is not "private is always better." For a straightforward single-canal front tooth, NHS and private outcomes are often similar, and the NHS fee makes the treatment accessible to anyone registered. For a molar with three or four canals, awkward anatomy, or re-treatment of failed previous work, the time and equipment that private fees buy make a real difference to how long the tooth survives. The decision should follow the tooth, not the marketing.
The four levers that set the price
Why is one root canal £400 and another £1,200? Four factors, in order of impact.
Lever 1 — which tooth. A molar can have three or four canals; an incisor usually has one. Every canal must be found, cleaned, shaped, and filled, and molar canals are narrower, more curved, and harder to reach at the back of the mouth. A front-tooth root canal might take 60 minutes; a complex upper molar can take 2.5 hours. Our guide to how long a root canal takes sets out the appointment timeline step by step.
Lever 2 — first-time or re-treatment. Re-treating a failed root canal — removing old filling material and starting again — is materially harder than treating a virgin tooth, and typically adds 30-50% to the fee.
Lever 3 — generalist or specialist. Endodontists (root canal specialists) usually charge £200-£500 more than a general dentist for the same procedure. Many cases are well handled by an experienced general dentist with the right equipment; complex re-treatment or unusual anatomy is where specialist input earns its premium.
Lever 4 — location. London private fees run 15-25% higher than the rest of the UK, driven by higher overheads. That is a genuine cost difference, not a mark-up.
Place your tooth against these four levers and the range stops being mysterious. A first-time front tooth with a general dentist outside London sits at the bottom. A re-treated London molar with a specialist sits at the top. Most teeth land somewhere in between, and now you know why.
Root canal plus crown — the cost most guides leave out
After root canal treatment, the tooth is structurally weaker — significant structure has been removed, and a tooth without its blood supply becomes brittle. A crown is recommended in most cases, particularly for back teeth, to protect against fracture. Across UK clinics, costs vary by material: a composite crown runs £400-£600 for less visible posterior teeth; a porcelain-bonded-to-metal crown £600-£900, durable but slightly less natural; an all-ceramic or Emax crown £900-£1,400, the premium aesthetic choice for visible teeth.
The combined root canal plus crown total for a private molar in London typically runs £1,800-£2,800. That is the realistic full-treatment cost, and budgeting for the procedure alone is the most common way patients are caught out. There is a long-term lens worth holding here too: a well-treated root canal under a good crown can last decades, and restorative dentistry done with optimal function in mind is what gives the tooth its best chance of long-term survival. The crown is not an upsell. It is the part that protects everything you just paid for.
Root canal vs extraction and implant — the arithmetic, honestly
Faced with an expensive molar, some patients ask whether pulling the tooth would be cheaper. The arithmetic is worth seeing in full.
OptionCost range (London)Treatment timeLong-term outcomeRoot canal + crown£1,800-£2,8002-4 weeks across 2-3 visits80-95% tooth survival at 10 yearsExtraction + implant + crown£2,500-£4,5004-9 months including healing95%+ implant survival at 10 yearsExtraction + bridge£900-£1,8002-3 weeksCompromises neighbouring teethExtraction alone (no replacement)£150-£300Single visitDrift of neighbours · bite changes · bone loss over years
The honest clinical position: where a tooth has good structural integrity left, saving it with root canal is usually the better long-term answer. An implant is a strong second choice; extraction without replacement is rarely right except for non-functional or terminal teeth, because the gap costs you more over the following years than the tooth would have. When extraction and dental implant placement genuinely is the right route, we plan it in-house with our implant clinician and refer to specialist colleagues where a case calls for it. And we say no often to extraction when the tooth can be saved — the cheapest option today is frequently the most expensive one over a decade.
How to judge a good endodontist — three questions
If your dentist has flagged your case as complex enough for specialist care, three questions separate strong endodontic practice from average.
First, does the clinic use rubber dam isolation routinely? Rubber dam — a thin sheet that keeps the tooth dry and isolated from saliva during treatment — is the standard of care for predictable outcomes. Skipping it cuts a corner that shows up in long-term failure rates. Second, is magnification used? Surgical microscopes or loupes are standard in elite endodontics; they let the clinician find every canal, including the small extra ones that cause many failures. Third, what does the success-rate conversation sound like? A good endodontist gives you a realistic, case-specific estimate — typically 70-95% depending on the factors above. A clinic promising "guaranteed" outcomes is misrepresenting what is possible. We manage straightforward and moderately complex cases in-house and refer high-complexity re-treatments or unusual anatomy to specialist endodontists we have worked with for years.
Aftercare and the long view
The first 24-48 hours after treatment may bring mild tenderness when biting on the tooth; it usually settles within a week, and over-the-counter pain relief is generally enough. For the longer term: avoid heavy chewing on the treated tooth until the permanent crown is fitted, because the temporary filling is not built for normal function. Keep hygiene around the tooth excellent — gum disease around a root-treated tooth is the second most common cause of failure. Attend hygiene appointments every four to six months. And if you grind your teeth, consider a night guard, because bruxism shortens the life of any restoration, crowns over root-treated teeth included. The permanent crown is typically fitted two to six weeks after the root canal completes; over a 15-20 year horizon a replacement crown, if ever needed, sits in the same £600-£1,400 band.
Frequently asked questions
Is root canal cheaper on the NHS? Yes, significantly — the Band 2 charge is £73.50 for any root canal regardless of complexity. The NHS will not always allocate the same time or use rubber dam isolation, but for straightforward cases the outcome can be similar. For complex molars, private treatment buys longer appointments, isolation, magnification, and specialist materials that improve long-term success. The right answer depends on the tooth.
Does dental insurance cover root canal? Most UK private dental insurance plans cover root canal within annual limits — typically £200-£1,000 a year depending on policy, with crown costs sometimes capped separately. Check your specific policy before treatment commits. Many patients combine insurance reimbursement with monthly finance for the balance.
Can I pay monthly for root canal? Yes. We offer 0% APR finance over 12 months via Tabeo, subject to status. The breakdown is presented in writing before any commitment.
What if I can't afford a root canal? The NHS Band 2 charge of £73.50 makes root canal accessible to anyone registered with an NHS dentist; NHS England runs a register search to find a practice taking new NHS patients. Extraction is cheaper short-term at £150-£300, but the long-term consequences for the bite and neighbouring teeth often cost more to address over the years. It is worth weighing the full picture rather than only the upfront figure.
How long does a root canal last? Long-term studies show 80-95% of root-treated teeth surviving at 10 years and 70-90% at 20 years. Longevity depends on how well the original treatment was done, whether a crown was fitted, hygiene maintenance, bite forces, and whether you grind. A well-treated root canal with a good crown and reasonable care can last a lifetime.
Book a root canal consultation
If you have been told you need root canal treatment, a consultation is the right first step. We assess the specific tooth, take any necessary X-rays, discuss honestly whether root canal is the right answer or whether extraction and replacement suits your case better, and write a costed plan before any commitment — no urgency, no pressure.
A dental problem assessment is £75 with Dr Vishal Patel, with treatment costs as set out above and finance options discussed in writing. Call 020 8127 4567 or WhatsApp +44 7974 910222 during clinic hours for general questions. Appointments Monday-Friday, 8am-7pm, by appointment, at 222 Essex Road, Islington, London N1 3AP.
Reviewed by Dr Vishal Patel · BDS Liverpool · MSc Aesthetic & Restorative Dentistry (Manchester) · GDC 103127 · Invisalign Diamond II Provider · AACD Member · twenty years in practice. Last reviewed 2026-06-04.
