When is a root canal needed?
Deep decay, a crack or an injury can let bacteria reach the pulp inside a tooth. Signs can include lingering sensitivity to hot or cold, pain when chewing, swelling or a darkened tooth — though sometimes there are no symptoms at all.What happens during treatment
Your dentist removes the infected tissue from inside the tooth, cleans and disinfects the canals, and seals them. Many teeth then need a crown to protect them and restore full function.Saving your natural tooth
Keeping your natural tooth helps you chew normally and protects your jawbone. A root canal is often the best way to do that once the pulp is damaged.Root canal treatment — frequently asked questions
Is a root canal painful?+
Root canals are performed with local anesthesia, and many patients say it feels similar to getting a filling. The treatment is meant to relieve the pain caused by the infection.
How many visits does a root canal take?+
Many root canals are completed in one or two visits, depending on the tooth and the infection. A crown may be placed at a later appointment.
What if I don't treat an infected tooth?+
An untreated infection can spread and may lead to losing the tooth. If you have tooth pain or swelling, contact your nearest office as soon as possible.
This page is general information, not medical advice. Your dentist will recommend the treatment that's right for you after an examination.