I must say, i think overpairs (is the english expression for "überpaar"

) are very difficult to play cause of exactly that situation: You get a c/r.
First of all i guess i had made a bigger bet on the flop, at least 1$, and then i don't know. Either i push or i fold, that then often depends on the impression of my opponent. Yesterday, e.g. i had KK as an OP ang get checked/all in raised on the turn with a straight draw completed. I made a weak (and wrong) call, i think, and he turned out to had 77 and hit his set on the river...
I'd say fold is the right decision here, since the board is so dry, that a raise only makes sense with a set, but i hate those decisions...