Root canal treatment

When a large cavity in a tooth reaches the nerve chamber, or in some cases when a tooth breaks, root canal treatment may be required. In order to save the tooth the Smiles Centre team take great care to painlessly clean and fill infected tooth canals with the most up to date rotary systems, before adding a filling material to seal them.

Within every tooth is a nerve chamber and a blood supply in the root canal. In a healthy tooth, these nerves will be alive. Front teeth will normally have one root holding them in the jaw bone, but back teeth can have two, three or four.

If a large cavity in a tooth reaches the nerve chamber, or if a tooth breaks, bacteria can cause the nerves to die. The root canals can become infected and an abscess may form beneath the root(s) of the tooth, in the jawbone. Pain may occur at any time during this process, and the infection can spread.

Treatment is usually carried out over one or two visits to Smiles Centre. The purpose of the treatment is to remove the bacteria or dying tissue from inside the tooth and to clean and disinfect the root canals. This is achieved by making a small hole through the tooth into the nerve chamber, locating and measuring the root canals, then cleaning and widening them using fine instruments. Local anaesthetic is used throughout the procedure to avoid any discomfort.

To aid the instrumentation of these intricate channels to the tooth, magnification may be used and if possible, the tooth will usually be isolated to keep the area dry and clear.

Once clean, the canals are filled to seal them off from re-infection. In most cases, infections will start to heal at this point.

Most patients only experience mild discomfort following treatment, but it is common to experience none at all.

Patient Reviews

People are talking about us

The biggest compliment we receive is when our patients refer their friends and family to Smiles Centre. In fact, we have built much of our practice on these valued, trusted recommendations over the years. Read our reviews to hear why our patients are recommending us…

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Patient reviews

678 Reviews

5.0
CW

Charlie Willard

Both the hygienist and dentist were very helpful and thorough and the experience was very easy. Becoming a big fan of gum numbing gel.

SQ

Sandra Quince

As always Kate had plenty of time for me (very nervous patient) Everyone are so nice. I even had a call to say Kate was running behind so I could come in a bit later but it turned out she caught up by the time my appointment was due. Don’t think you would get that from any other dentist

30th September 2026

staff very friendly dentist very knowledgeable

GT

Graham Tompkins

Routine check up and hygienist appointment.<br>Very efficient and friendly<br>My only criticism is parking is a pain .

26th September 2026

Everyone makes me feel welcome and as a nervous patient, I now feel quite relaxed and comfortable

23rd September 2026

Neha and her assistant were friendly and attentive throughout. Very little pain or discomfort. Coming regularly to the Hygienist makes all the difference.

DM

Denise McAteer

Always so friendly and I always feel at ease

SM

Sarah Morgan

Bernadette and the Dental Nurse were both friendly whilst professional and explained everything clearly and calmly

JB

Julie Bidgood

Friendly Dentist good service very efficient and was kept well informed of treatment plan.<br>Good Dental Company make you feel at ease.

BB

Brezo Breslin

Very professional very pleasant fantastic service I would recommend smiles to anyone

3rd September 2026

Am nervous patient, dentist took time to reassure me, demonstrating patience and empathy

28th August 2026

I’m not the easiest person to deal with , my brain works differently to most people I know . The whole team puts me at ease . Really impressed with the work Kate and her nurse dealt with me and explained things in layman’s terms for me to understand. Outstanding, well done team .

PG

paul gale

A great experience and definitely no pain

22nd August 2026

Efficient and friendly service

19th August 2026

Easy to book, in time appointment

JD

John Derkacz

It was fabulous

12th August 2026

Relaxed and felt at ease with my treatment always happy to explain to me everything that’s going on including what they will be doing and after care.

10th August 2026

Very compassionate and understanding and patient and very helpful

GF

Gemma Ferguson

I have been attending Smiles dental practice since 2016. The staff and dental team are always friendly and helpful. The dental staff are very thorough, share lots of dental knowledge, are happy to answer questions and go above and beyond at each appointment. Would highly recommend!

5th August 2026

Very thorough explained everything even helped answer questions about my husband and his gums,very chatty helping me understand why he needed an xray and why no more treatment needed

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