Frustrating and futilitarian, that’s what dentistry is. I have at least 3 teeth that have had more than one root canal. I hope you get some relief.
I was wrong about the tooth, 15 had 3 root canals and 14 just one. We now know it’s 14. I am on antibiotics. Both dentists think this tooth has cracked...the next step is removing it. OMG not THAT. Then I will need an implant. (((((shudder)))))