
- Root canal treatment is a dental procedure to remove infected or inflamed pulp from a tooth, clean and disinfect the inside, and then fill and seal it to save the natural tooth. The process involves numbing the area, making an opening, cleaning the pulp chamber and root canals, and then filling them with a material like gutta-percha. A crown or permanent filling may be needed afterward to protect the tooth.
Why you might need a root canal
- Deep decay: When a cavity becomes so large that it reaches the tooth’s inner pulp.
- Infection: The pulp can become infected from decay, repeated dental procedures, or a deep crack or chip in the tooth.
- Pain: Persistent toothache, especially when chewing or applying pressure, can signal a problem with the pulp.
- Preventing further damage: Untreated infection can lead to a dental abscess, which can cause severe pain, swelling, and damage to the surrounding bone.
The procedure
- Numbing: The area around the tooth is numbed with a local anesthetic.
- Isolation: A dental dam is often placed around the tooth to keep it dry and free from contamination.
- Access: An opening is made in the crown of the tooth to access the pulp chamber.
- Cleaning: The dead or dying pulp and infected tissue are removed from the pulp chamber and root canals, which are then thoroughly cleaned and disinfected.
- Shaping and filling: The inside of the tooth is shaped to accommodate a filling, which is then placed inside the root canals to seal the space.
- Sealing and restoration: A temporary or permanent filling is placed. A crown is often needed to protect the tooth, especially if it was badly infected. A post may also be inserted for added strength before the permanent filling and crown are applied.
After the procedure
- Pain: You may experience soreness for a few days as the area heals, which is different from the original pain of the infection. Over-the-counter pain relievers usually help.
- Follow-up: You will likely need a follow-up appointment to have the permanent filling or crown placed.
- When to call your dentist: Contact your endodontist or dentist if you experience severe or prolonged pain, swelling, or if your temporary filling comes out


