It's not as if it's an insurmountable problem. (Score 1)

Why don't we just try to fix the problem, instead? It's probably not that difficult of an issue. Soon, someone will probably come up with a vitamin supplement or some sort of artificial gravity (maybe by spinning the ship) that will fix the whole issue. So why push it?

Besides, we're worried about psychological issues between the crew of these spacecraft. I'm sure that serious and extremely nasty dental issues won't help that.

So instead of growing a backbone, I say we just wait a couple years and grow a brain instead. That way, we'll have fairly happy astronauts returning home instead of toothless, frail, half-insane wrecks.