What Is a Root Canal, Really?

A root canal is a treatment that removes infected or inflamed tissue (the pulp) from inside a tooth. When the pulp becomes infected — from deep decay, a crack, or trauma — it can cause severe pain and, if left untreated, an abscess. Root canal therapy treats the source of that pain while keeping your natural tooth.

Using a surgical microscope, your endodontist removes the diseased pulp, carefully cleans and shapes the tiny canals inside the root, and seals them. The tooth is then restored, usually with a crown placed by your general dentist.

Despite its reputation, a modern root canal is typically no more uncomfortable than a routine filling — and it relieves the pain you came in with. Sedation options are available for anxious patients.

Most patients return to normal activities the same day, with mild tenderness for a few days. Saving your natural tooth preserves your bite and avoids the need for an implant or bridge.