An Overview of Root Canals
https://www.webmd.com/oral-health/root-canals
White Tooth Dental Takeaways:
Though root canals get a bad wrap for being painful, the vast majority of the time they are no more uncomfortable than any other dental appointment! If you have a painful tooth that you and your dentist determine is one you want to do everything possible to preserve and prolong the longevity of, the root canal is your best option.
If you are nervous, considering sedation of some level (minimal to general) is a great option if it helps you get the care your tooth (and you need)!