@Green Witch,
actually it's late for that. I had a few root canals and crowns a few years ago and they became infected. Because the nerve was gone, I felt no warning pain and until they started rotting from the inside out and I saw the discoloration I wasn't even aware of it.
I learn that there are "minor" roots branching off from the main root of a tooth and that it's not uncommon for those to become infected even after a root canal and crown. That's what I was told anyway.
As for friendship and community I agree one benefits from true friends and you only need one or two true friends. As for community I have come to believe that the more people you open yourself to the more certain betrayal and rejection will eventually follow. I am not pleased to feel this way, but it has overtaken me over the years.