Depends on how bad they're messed up and how they take em out.

All four of my wisdom teeth were horizonatally impacted but poking out of the gumline a little. This is what they looked like, but with a little bit above the gumline:



I had all four taken out at the same time. It royally sucked for a few days afterwards, but they do give you lots of narcotic painkillers.

I would schedule it for a break from school.