You have to pick:

That would actually be pretty awesome

Do I have to brush my toe teeth? Is there special toothpaste for use on the foot?

u can fall out of the house

Make sure you have a parachute at all times.

I think you probably would have to brush them. Although they wouldn't get as much on them as normal teeth, so perhaps they'd be ok. Maybe just careful washing when you normally shower would be sufficient.