If you’re slightly sore the next day, it’s usually where the local anesthetic was injected or due to some joint irritation. Plan to massage your face, jaw, and take an anti-inflammatory to prevent any potential discomfort before it starts.
The goal of endodontic therapy — aside from preserving your tooth — is to alleviate the risk of pain. Treating your tooth with a root canal is meant to help you avoid any potential discomfort from an infection. Today’s resources and technology can make getting a root canal essentially pain free.