I am sorry you are need of so much
dental work. I also have had lots of
dental work done, and so far, knock on wood, it didnt set off any TN for me.
That being said, I also had troubles with Root canals giving me lots of pain post-op. I think I didnt go to the right person for one of them.
If it were me, I would wait until I got back from my FUN trip and enjoy without any additional mouth troubles. Not that anything would happen, but ya never know.