How does a root canal treatment work?
A root canal treatment, is a procedure designed to treat infection or damage deep within the tooth.
At Premier Smile Dental Excellence, the process begins by numbing the area to ensure you’re comfortable.
We then carefully remove the infected or damaged pulp from inside the tooth and clean the canals to prevent further infection.
After disinfecting the area, the canals are filled with a special material to seal them.
This procedure helps preserve your natural tooth, preventing the need for extraction, while also eliminating the pain caused by infection.
Root canal treatment and reconstruction: the steps
At Premier Smile Dental Excellence, a root canal treatment is often followed by a reconstruction to restore the tooth’s strength and appearance.
After the infected pulp is removed, the tooth is fragile and needs to be protected.
We offer customised options for rebuilding the tooth, which may involve a crown or filling, depending on the level of damage.
Our advanced techniques and high-quality materials ensure that your tooth looks natural and functions perfectly after treatment.
This combination of root canal treatment and careful reconstruction gives you long-lasting results and helps prevent future issues.


We believe in taking the time to fully understand your dental health, concerns, and goals.

Dr. Nooshin Vasfi is among the very few dentists with specialist and extensive post-graduate training in both root canal treatment and pulp therapy—focused on saving teeth—and implant dentistry, which replaces teeth that cannot be saved.
She earned her Doctorate of Dental Surgery in 1998, followed by additional professional qualifications. In 2004, she obtained her Diploma of Clinical Dental Sciences from the Eastman Dental Institute and Membership of the Faculty of Dental Surgery of the Royal College of Surgeons of England.
In 2006, Dr. Vasfi joined the specialist registrar training programme at Guy’s Hospital, completed her Master of Clinical Dentistry at the University of London, and then achieved Membership of Restorative Dentistry from the Royal College of Surgeons of Edinburgh in 2010. Subsequently, she was listed as an Endodontic Specialist on the General Dental Council’s UK register. She is also a member of the British Endodontic Society and the Langham Endodontic Study Group.
Dr. Vasfi has over 27 years of clinical experience and has taught post-graduate students in endodontics at King’s Hospital. She established her Leighton Buzzard endodontic referral base in 2009. In addition to her endodontic specialty, she completed extensive implant dentistry training (with a strong prosthodontic focus) and obtained her Diploma in Implant Dentistry from the Eastman Dental Institute in 2015. She is also a member of the British Association of Restorative Dentistry, Dental Trauma UK, and the International Team for Implantology.
Dr. Aryan Gararakhani graduated from the University of Debrecen with a Doctor of Medical Dentistry (D.M.D) Honours degree in 2016.
Cost of a root canal treatment
The cost of a root canal treatment can vary depending on the complexity of the procedure and the tooth in question.
At Premier Smile Dental Excellence, we provide transparent pricing and discuss all available options before treatment begins.
We believe in offering accessible dental care, which is why we provide flexible payment plans, including 0% financing.
Our goal is to make sure that your treatment is affordable while maintaining the highest standards of care.
To get a personalised quote for your root canal treatment in Leighton Buzzard, book a consultation with us today.
Does a root canal treatment hurt?
One of the most common concerns about root canals treatments is whether they cause pain.
At Premier Smile Dental Excellence, we use the latest anaesthetic techniques to ensure that your root canal treatment is completely painless.
In fact, the procedure is designed to relieve the pain caused by an infected tooth.
Our specialists ensure that you are comfortable throughout the process, and we provide aftercare advice to minimise any discomfort following the treatment.
If you’ve been avoiding treatment out of fear, rest assured that modern root canal treatment is far less painful than living with an untreated tooth infection which would have consequences on your overall health too.



Pain after a root canal treatment: what to do?
It’s normal to experience some mild discomfort after a root canal treatment, but this usually subsides within a few days.
At Premier Smile Dental Excellence, we provide detailed aftercare instructions to help manage any post-treatment pain.
Over-the-counter pain relievers are typically enough to keep you comfortable.
If you experience significant pain or swelling after a root canal treatment, it’s important to contact us right away so we can assess the situation.
We are committed to your comfort and recovery, ensuring that any post-treatment issues are quickly addressed.
How long does a root canal treatment take?
The duration of a root canal treatment depends on the complexity of the case, but most treatments at Premier Smile Dental Excellence are completed approximately two hours appointments.
Each session lasts approximately one hour, giving us enough time to thoroughly clean and seal the tooth.
In some cases, a follow-up visit may be necessary to place a crown or other restoration.
Our use of advanced technology, including microscopes and digital imaging, ensures that we complete your treatment efficiently while maintaining the highest standards of care.

Dr Nooshin Vasfi

Teresa Stratford

Clare Holland

Susan Rouse

Dr Aryan Gharakhani

Angie Kong
We believe in taking the time to fully understand your dental health, concerns, and goals.










- From Aylesbury
Take the A418 towards Leighton Buzzard, continue on Leighton Road, and follow signs for Hockliffe Street.
- From Milton Keynes
Follow the A5 south to A4146, then take Hockliffe Street into the town centre.
- From London
Take the West Midlands Railway to Leighton Buzzard station. From there, it’s a 15-minute walk or a short taxi ride to the practice.
- From Milton Keynes
Take a direct train to Leighton Buzzard station and proceed as above.
- From Dunstable
Use the Arriva bus service towards Leighton Buzzard, stopping at Leighton Buzzard High Street, a short walk from the practice.
- From Luton
Take the Arriva bus service towards Leighton Buzzard and alight at the High Street stop.
- Where To Park
There is free parking at the rear of the practice with limited spots. Alternatively, you can park at Morrison’s (5-minute walk) or the city centre car parks, all within a short walk of the practice.
- Dunstable: Follow the A505 to Leighton Buzzard, then take Hockliffe Street.
- Aylesbury: Take the A418 to Leighton Road, then follow signs to Hockliffe Street.
- Milton Keynes: Use the A4146 towards Leighton Buzzard, turning onto Hockliffe Street.
- Luton: Drive on the A505 towards Dunstable, then continue to Leighton Buzzard on the A4146.
- Hemel Hempstead: Follow the A4146 directly to Leighton Buzzard, then turn onto Hockliffe Street.
EXCELLENT Based on 147 reviews Laura PTrustindex verifies that the original source of the review is Google. My son had a routine appointment with Dr Khan , and he was wonderful with him. He answered all my questions and the experience was very good. Douglas HoldingTrustindex verifies that the original source of the review is Google. Thourgh and professional Dentist. Would recommend their practice Dan GTrustindex verifies that the original source of the review is Google. Had a great experience at the clinic, getting both dentistry and hygienist appointments. The staff were very helpful, informative and happy to go the extra mile. Emma BousfieldTrustindex verifies that the original source of the review is Google. I am very anxious about coming to the dentist but the team make me feel at ease and give good guidance how to better manage my teeth hygiene. Would highly recommend Dan JonesTrustindex verifies that the original source of the review is Google. Excellent service- recommend mary myersTrustindex verifies that the original source of the review is Google. Fantastic staff who will do everything they can to help. Lots of suggestions and talking through different options. Tina HucklesbyTrustindex verifies that the original source of the review is Google. My dentist since 1964. Brilliant and welcoming. GabbieTrustindex verifies that the original source of the review is Google. I recently visited Dr. Vasfi for two very lengthy root canal appointments after being referred to her by my regular dentist. To say I was absolutely dreading these procedures was an understatement, but I needn’t have worried at all. Nooshin is very calm, kind, and patient, and her demeanour immediately puts you at ease. As an anxious and nervous patient, the entire team at Premier Smile Dental Excellence went out of their way to make sure that I was looked after and answered my many questions. The overall procedure was painless, and the actual root canal work that was undertaken was incredibly thorough. Nooshin talks you through each stage of the root canal process, so you know exactly what to expect during the procedures (you can even choose what music you might like to be played during your treatment if this helps to relax you too). Nooshin takes x-rays and photographs of your teeth before and after treatment so you can really see the difference she makes! If you need any kind of intricate dental work done (especially if you have been putting this off) then I wouldn’t hesitate to recommend Dr Vasfi, her caring nature, expertise and attention to the personalised level of dental care she provides is second to none. Thank you Nooshin and the team - I can't thank you enough. Josh DuffyTrustindex verifies that the original source of the review is Google. Fantastic Service received, and very friendly and helpful staff Leslie ToleTrustindex verifies that the original source of the review is Google. Great experience, very good clean!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more