I just talked to my sister - boy is she in a bad mood - and the dental school makes you pay up front for everything, so that is out, too.

She said she was up all night crying with pain. I told her to call medical assistance now, so we'll see what they say.
In a way, it's her own fault cause she keeps spending what money she does have on other things. She COULD of had the money if she hadn't bought beer, expensive food, etc.... for so long, but I still feel bad that she's in pain.