@tisme I’m so sorry you’re having all these dental issues on top of also have arthritis. Actually arthritis can play a large part in having TMJ (temporal mandibular joint) problems. I’m going to post a link for a few articles on TMJ so that you may understand a little more about that important joint.

~From tmj.org
https://tmj.org/living-with-tmj/basics/
~from Very Well Health https://www.verywellhealth.com/what-is-tmj-disorder-1192014

If you’re not able to have implants to replace the teeth which will be removed. You might want to consider a removable partial denture. Has your dentist talked to you about replacement teeth?