What do you do if your root canal was never comfortable?

Get a second opinion: A root canal that is not comfortable is either poorly done, has an additional canal that needs to be treated or is a cracked tooth and will still be lost. Seek the advise of an endodontist. (specialist in root canals).

See a dentist: If you had a root canal and over time, it still is uncomfortable, there could still be something going on. Its possible there is an infection present or a cyst. It is also possible that there is an extra nerve in the tooth or even a root fracture. The only way to know for sure is to see a dentist and have your tooth evaluated.

Reevaluation: There are many factors that may be at play when a root canal tooth remains uncomfortable. Some complications do not reflect the treatment itself. I would encourage you to go back to your treating dentist and then if not satisfied with his/her recommendations, then get another opinion.