What is Root Canal Retreatment? ✅ Root canal retreatment involves reopening a previously treated tooth, removing the old filling materials, disinfecting the canals again, and refilling them to resolve any remaining infection or issues. Signs You Might Need a Root Canal Retreatment: Severe or persistent pain when chewing or touching https://drbonyanian.com/en/when-does-a-tooth-need-a-root-canal-retreatment/