Yay!! I was just in the dental chair last Saturday for a crown & 2 fillings. That needle friggin' HURTS. OMG, has to be in the top 15 most painful things I've ever had done. I can't imagine having more than 1 shot at a time. Make sure you keep your keys locked up w/the Tylenol3s.. one and one time only have I ever taken one of those & I hallucinated SOO badly. I was just a teenager, my father (a Vietnam medic) gave me one for .. uh.. that time of the month. Was in bed watching mushrooms growing on the ceiling. Had to pee, went to the bathroom, started screaming that a lion was charging in to eat me. REALLY bad trip. Swore never again to take any kind of drug (and yes, this was an actual Tylenol3.. he is prescribed this for his back injury from Vietnam). That was 24 years ago and never touched any kind of drug that wasn't prescribed to me (and most prescribed I won't take, either!). I have to go back in on the 7th for my permanent crown. I'm going to ask for the nitrous oxide first. Should be OK, then. Only problem is that, when drunk, I'm a "happy drunk" (I giggle for HOURS). No idea what laughing gas would do for me then. But at least it's a beautiful day!