Mine never bothered me, but the dentist told me that they probably would in the future, so I should just have them taken out before there were any problems. They hadn't even come out through the gums yet, so I had the weird experience of having stitches in the back out my mouth where the 4 teeth would have been. I don't know how long I was knocked out for, a couple hours for all I know before I got out of the chair, got a ride home, and passed out for a few more hours. I bled for a while, but I was never really in any pain