Saving a tooth and ending the pain
A root canal is a dental procedure that aims to save a tooth that would otherwise have to be extracted. It involves removing the infected or dead nerve inside the tooth, carefully disinfecting the canals, then filling them to prevent any new infection. Once the treatment is complete, a final restoration — composite or, ideally, a crown — is placed to give the tooth back its strength and function.
This treatment lets you keep your natural tooth, avoid an extraction and prevent more serious complications.
Why is a root canal necessary?
A root canal is needed when bacteria reach the centre of the tooth (the pulp), often because of:
- deep decay
- a crack or fracture
- trauma
- an old restoration that leaks
When the pulp is infected or dead, the pain can become intense and the infection can spread to the bone or surrounding tissues. A root canal then stops the infection, relieves the pain and preserves the tooth.
How long does the procedure take?
The length of the treatment depends on the number of canals in the tooth (between 1 and 4). In general, the procedure takes between 60 and 120 minutes.
In some more complex cases, a second visit may be needed, especially when:
- the infection is extensive
- the canals are hard to reach
- the tooth has an unusual anatomy
Your dentist will clearly explain the treatment plan suited to your situation.
Does a root canal hurt?
Contrary to popular belief, a root canal doesn’t cause pain — it relieves it. The procedure is done under local anesthesia, which makes it comfortable for the vast majority of patients.
It is normal to feel slight sensitivity for a few days after the treatment. It is easily managed with common pain relievers.
In some cases, when the infection is significant, stronger anesthesia or antibiotics may be needed before proceeding, to ensure optimal comfort.