Root canal treatment
Root canal treatment is used when the pulp inside a tooth becomes inflamed or infected after deep decay, a fracture or trauma. The aim is to try to keep the tooth rather than extract it.
The pulp is cleaned, the canals are shaped and filled, and the tooth is then restored with a filling or, when needed, a crown.
Who might it be for?
- Lingering hot or cold sensitivity
- Spontaneous or night-time toothache
- Teeth with deep decay or a fracture
- A tooth that has changed colour, or swelling of the gum
How does the process work?
- Examination and imagingThe tooth is assessed clinically and with imaging.
- AnaesthesiaThe area is numbed with local anaesthetic.
- Cleaning the canalsThe pulp is removed, canals are shaped and disinfected.
- Filling the canalsThe canals are filled with a suitable material.
- RestorationA filling or crown is planned, with a review visit.
Frequently asked questions
How many visits are needed?
One or more visits may be required, depending on the tooth.
Is it painful?
The procedure is done under local anaesthetic. Mild sensitivity afterwards can occur.
Will the tooth stay strong?
This depends on the remaining tooth structure, the final restoration and your oral care.
Can every tooth have a root canal?
Suitability is decided after examination. Other options are discussed when needed.
Information on this page is for general guidance. The right treatment for you is decided by your dentist after examination and any necessary tests.
Root canal
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