Comfortable, Caring, Specialist Root Canal Treatment in London

Male endodontist speaking to female patient at aa table showing her images on a computer screen. Female patient is smiling and looks happy

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Are Root Canals Painful?

A common misconception is that root canals are synonymous with pain. 

In truth, root canals are designed to alleviate the very pain caused by dental infections and damage. 

The procedure itself, especially with the advanced techniques and pain-relieving measures we employ at our Harley Street location, can be as comfortable as receiving a traditional filling.

We’re committed to transforming this misinformed narrative, encouraging more people to preserve their natural teeth and alleviate their pain.

Why Choose EndoAcademy?

Expertise Spanning Decades

Our team boasts years of endodontic experience, ensuring you’re in the hands of seasoned professionals who excel in their craft.

Advanced Treatment Technology

We harness the latest in dental technology to ensure your treatment is efficient, less painful, and as comfortable as possible.

Dedicated to Your Comfort

Your wellbeing is our top priority. We’re dedicated to clear communication and ensuring every visit leaves you feeling cared for and understood.

Make an appointment

Request an appointment time via our booking form and we’ll get back to you as soon as possible.

Meet the Team

With decades of experience and some of the world’s foremost endodontic specialists and academics in its ranks, our team strives for excellence and improvement every day.

The range of clinical expertise on offer within the academy allows patients a wide range of choices when it comes to speciality and price.

Team image of staff from the Academy of Advanced Endodontics. From left to right- Richard Kahan, David Selouk, Ian Blewitt, Andrea Poganescu, Katherine Fernandes, Natalia Ponici, Stella Sarafi, Irene Soriano, Leigh-Ann Elias, Rachel Whittaker-Percival, Joanne Leatherbarrow


Our Pricing

Our pricing structure is based on the relative experience of our dentists. If you’re unsure about which practitioner best suits your needs, please don’t hesitate to call us or submit an appointment request form, and we’ll gladly assist you in making an informed decision.

Our root canal treatment prices are transparent and all-inclusive. Please keep this in mind when you compare other prices quoted on websites. Once quoted, there are no extras. Included in the treatment prices quoted on the website is a consultation, a cone beam CT scan and all-digital radiographs.

(deducted from final cost if treatment proceeds)
Routine Endodontic treatmentComplex Endodontic TreatmentSurgeryCBCT Scan & ReportPost removalTemporary CrownPost & CoreBleaching per toothExcision biopsy pathology reportDecompression of large (cystic) areaSurgery following in-house endodontic treatmentPulp TherapyOral sedationIV Sedation
Dr Richard Kahan3951845235018452952952952952952951125895Price on requestPrice on requestPrice on request
Dr David Selouk3651645215016452502952952952952951125895Price on requestPrice on requestPrice on request
Dr Ian Blewitt3451445184514452502952952952952951125895Price on requestPrice on requestPrice on request
Dr Irene Soriano3151095149510951952952952952952951125895Price on requestPrice on requestPrice on request
Dr Stella Sarafi3151095149510951952952952952952951125895Price on requestPrice on requestPrice on request
Dr Leigh Ann Elias375--------------

Our location

99 Harley Street

Strategically located at the heart of London’s renowned medical district, the Academy of Advanced Endodontics enjoys its position on prestigious Harley Street, ensuring easy accessibility and a prime setting for patients and practitioners alike.


Answering our most commonly asked questions.

Root canal treatment is a way to save a tooth that has been damaged by deep decay, breakage or infection. The purpose of treatment is to restore the tooth to good health so it can function properly inside your mouth. An endodontist is a specialist in root canal treatment.

Deep inside every tooth is a pulp chamber and root canals that contain living tissue called the pulp. The pulp is often mistakenly referred to as the ‘nerve’, but in fact it contains a fine network of tissue fibres, nerves and blood vessels. If a large cavity in a tooth reaches the pulp chamber, or if a tooth breaks, bacteria can reach the pulp. These bacteria damage the pulp and eventually destroy it. The root canals become infected and inevitably an abscess forms beneath the root of the tooth, in the jaw bone. Pain (occasionally severe) may occur at any time during this process, although it does not always, and the infection can spread.

The purpose of the treatment is to remove the bacteria or dying nerves from inside the tooth and to disinfect the root canals. This is achieved by making a small hole through the tooth into the pulp chamber, locating and measuring the root canals, then cleaning and widening them using fine instruments called files. Once clean, the canals are filled to seal them off from reinfection. In most cases abscesses will start to heal at this point. Changes on the x-ray are not usually seen for up to six to eight months following treatment.

No. Local anaesthesia is used throughout the procedure and every possible step is taken to ensure you are comfortable while the work is carried out. On very rare occasions, some teeth are particularly sensitive, but a number of techniques are available to enable even these teeth to be tackled. Following treatment you will be informed of the possibility of discomfort from the area. This is usually minor and does not last long. Occasionally (5% incidence) the tooth can flare up, giving rise to significant pain. Should this occur the acute symptoms are usually treated with antibiotics and anti-inflammatories (painkillers). A flare-up is an unfortunate and rare occurrence and is related to factors such as host response and bacterial virulence. It does not mean the tooth has a lower chance of successfully being treated.

The only way to ascertain what is happening inside and underneath teeth is through the use of x-rays. X-ray pictures inside the mouth produce only very small doses of radiation and pose virtually no danger. However, to further reduce risk, the surgery has the latest computerised x-ray system and a high-frequency x-ray tube. This reduces the already small radiation dose by a further 75%-80% and means that for the same dose of one regular mouth x-ray, four computerised x-rays can be taken. For most endodontics, only two or three x-rays are required.

This can vary according to the complexity of the root canals, the presence of infection, or if retreatment is being carried out. Sometimes treatment can be carried out in one session lasting between one and two-and-a-half hours. If the canals are infected or are being retreated it is usually necessary to place an antibacterial dressing in the tooth. This is sealed in for a few weeks before a further appointment.

Root canal treatment enjoys a high level of success. However, it is impossible to guarantee the success of any medical procedure. Even with the best treatment, healing may not occur due to circumstances beyond the control of the physician. For teeth without abscess formation (dying only), root canal treatment enjoys a high rate of success (90%-95% survival at 10-15 years). Once a tooth has become infected the success rate can diminish with the increasing size of the abscess. Success in these cases is 70%-85% survival at 10-15 years.

Should treatment fail, which can be established either through a return of the pain symptoms or an x-ray showing no healing, further steps might need to be taken to eradicate the infection. These include redoing the root treatment, surgical techniques or possibly the extraction of the tooth.

It is true that the complexity of the root canal system will allow bacteria to evade our efforts at disinfection, and that some bacteria will survive if they have penetrated deep into the tooth. It is also true that the effect of these types of bacteria and the body’s chronic inflammatory response to protect itself from them, can potentially cause systemic diseases in susceptible individuals.

As with any medical intervention, it is important to weigh up risks against benefits. There is no scientific evidence to link residual bacteria left in root-treated teeth with any systemic disease. For this to be feasible, it is likely that the patient would have to be disease-susceptible and this would be a great rarity. As a living organism, we co-exist with bacteria in our bodies. This risk will therefore be very small and impossible to quantify.

Without root canal treatment, the only way to completely eradicate the source of infection would be to extract the tooth. This could lead to cosmetic and functional disadvantages, possibly altering the quality of life. Replacement (false) teeth can be provided but all of these, whether fixed or removable, are invariably compromises that damage the adjacent teeth or gums, leading to further tooth loss over time.

An implant will be an effective replacement that has a good success rate and does not tend to damage adjacent structures. These are placed surgically, as long as there is bone of sufficient quality and quantity to support them. Implant treatment is generally quite expensive.

Consideration of the above factors would tend to support the notion of trying to save a tooth rather than extract it.

Root-treated teeth are susceptible to breakage for two reasons. First, the tooth is weakened by the large cavity or breakage that originally caused the problem. Second, the nerves inside the tooth provide it with a pressure-sensitive control mechanism and the tooth is protected from high breaking forces. With no nerve, the fine control is lost and higher forces can lead to breakage.

A crown (cap) is often necessary, particularly for back teeth that do the heavy chewing. The tooth can be used normally following treatment. However, until it is strengthened you should take care not to bite too heavily on it.

The need for a crown is established at a six-month or 12-month recall appointment with us, and it is important that you attend this so the status of the tooth can be established. During this time the tooth is protected with a provisional sealed filling.

If a crown is recommended, it is essential that you return to your dentist so the tooth can be properly protected. A badly fractured root-treated tooth often cannot be saved.


Your own particular requirements can and will be discussed before any treatment is undertaken. Often, reassurance and a gentle manner explaining what will happen works well for many anxious patients.

The dental chair is equipped with an audio-visual unit which you can control, and a number of films, documentaries and programmes are available to aid relaxation and distraction.

If you are considerably anxious, sedation facilities are available. Sedation produces a state of relaxation and reduction of anxiety through administering anxiolytic drugs. These vary according to the level of patient anxiety, from simple Valium taken the night and morning before the appointment, a larger dose of Temazepam half an hour before the appointment, or for really phobic patients an intravenous mixture of hypnotics and anxiolytics administered by a consultant anaesthetist. As your safety is of paramount concern, the presence of an anaesthetist to administer this more powerful sedation is mandatory. The drugs induce a retrograde amnesia so the patient has only a vague memory of what happened.

Any form of sedative agent leaves the patient slightly groggy for a few hours. We therefore insist that the patient is accompanied home by a responsible adult and instructed not to drive, operate heavy machinery or sign important documents for up to six hours.

Specialist endodontic treatment is not cheap as the procedures are time-consuming and require expensive specialised equipment and highly trained staff. A price list is available on this website but it should be used only as a guide. Before any treatment is started the costs are discussed, and once a price has been quoted we endeavour to keep to it so you do not need to worry about a growing list of extra charges. 

  1. Endodontic treatment/retreatment.
  2. Sealing of the tooth using a permanent filling material suitable for a crown core. NOT permanent cast post and cores.
  3. Any necessary emergency appointment with the practice during or immediately after treatment.
  4. Insurance form completion and report to referring dentist.
  5. A review appointment six months to a year after treatment.

Please note item 3. Some endodontic specialists will send you back to your own dentist for the final/provisional filling. We prefer to do this ourselves to ensure an immediate good seal, preventing microleakage and re-contamination. Furthermore, the dentist who places the final restoration may damage prepared areas as they will not have had the benefit of working inside the tooth, fully appreciating its internal dimensions.  

Still have a question?

If you still have additional questions, please don’t hesitate to call us or submit an appointment request form and we’ll get back to you as soon as possible.

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