What is root canal treatment?
Root canal treatment, also known as endodontic therapy, is a procedure that saves a tooth when its nerve (or pulp) has become infected or inflamed. When decay or damage reaches deep inside the tooth, bacteria can cause pain, swelling, and infection. Root canal treatment removes the infected tissue, thoroughly disinfects the area, and seals the space to prevent further problems — allowing you to keep your natural tooth rather than lose it.
Who might need root canal treatment?
You may need root canal treatment if a tooth is badly decayed, cracked, or has developed an infection inside the root. Common signs include severe toothache, tenderness when chewing, or prolonged sensitivity to heat or cold. If you want to save your natural tooth instead of having it removed, a root canal is the best option. Without it, the alternative is extraction — which could leave a gap or require a replacement such as a bridge, denture, or dental implant.
How does root canal treatment work?
The treatment is carried out under local anaesthetic to ensure you’re completely comfortable throughout. Your dentist will isolate the tooth with a protective rubber sheet to keep it clean and dry, then gently access the inner chamber to remove the infected tissue. The root canals are carefully cleaned, shaped, and disinfected using specialised instruments and antibacterial solutions. Once fully clean, the space is sealed with a root filling material to prevent reinfection, and the tooth is restored with a durable filling or crown for strength and protection.
How long does a root canal take?
The length of the appointment depends on how many roots the tooth has and how complex the case is. Most root canal treatments take between 60 minutes and 2 hours to complete. Your dentist will let you know exactly how long to allow before your appointment is booked.
How much does root canal treatment cost?
The cost of root canal treatment depends on the number of roots and the level of infection involved. Prices start from £530 for private patients and £400 for Dental Subscription members. We’ll always provide a clear treatment plan and full cost estimate before beginning any procedure.

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    Frequently asked questions

    Does root treatment hurt?

    Will a root treatment last?

    Is the rubber sheeting essential?