A root canal is a major procedure, so pain after a root canal is normal. A root canal involves deep cleaning inside the canals (the inner chamber of the root) of your tooth, which can in turn irritate surrounding nerves and gums. The pain shouldn't last forever.

Can a tooth with a root canal hurt years later?

With proper care, even teeth that have had root canal treatment can last a lifetime. But sometimes, a tooth that has been treated doesn't heal properly and can become painful or diseased months or even years after treatment. If your tooth failed to heal or develops new problems, you have a second chance.

Why would a root Canaled tooth hurt?

One of the most common causes of post-root canal tooth pain is inflammation, which can be caused by the procedure itself or because the infection caused the tooth ligament to become swollen. In these cases, the swelling will subside in the days and weeks following the root canal, and the pain will resolve on its own.