Aboleth was too smart for her own good sometimes XD She knew the carrier was A Bad Thing ater the firsat time I used it and wouldn't go near it if I was anywhere nearby. She'd happily settle in it if no humans nearby though! We didn't give her enough credit for being so smart TBH and that's my only real regret
Eurgh, what a quandary. If it were me, I would get the dental over and done with and deal with any 'other' problems later, as it's a big thing and if it is the cause, worth doing it now, and if it isn't, it's ruled out AND he's set for another spell of good teeth-ness. He might need longer to get back to himself if he's a bit of but I think the potential benefits outweigh the risks.