laughing gas
laughing gas literally does nothing to me
i'm just all 'meh' instead of the intended 'ohohohoho im in dreamland ohohohhohoho'
and that was when i needed to get some crowns in my teeth (because cavities when i was eating popcorn and i hit a cavity with the popcorn)
also for some reason i don't feel a lot of pain when i touch a tooth that has a cavity (like with food for instance)
odd
(i still brush my teeth nonetheless but you know)
OT: good luck