alt Hacker NewsState prisons are usually only a smidge better than county. They’re a slight improvement in that they’ll give shitty prison dentures instead of just pulling all the teeth.
The other side of it is that prison is the first time many people get any dental work done at all so they cone in with large problems all ready.
Yes, sadly a lot of people coming through these institutions have terrible dental issues and probably need a lot of teeth removed already. Hopefully in the future the dream of regrowing adult teeth will come to fruition.