Dentist have always had a difficult time getting me numb. I always ask for a nerve block. It is the only thing that works for me. Like Issie, I get shaky when I have several local shots. Guess it is the epinephrine. It makes my heart beat very fast and I have a hard time breathing. NMPots, you are SOOOOOOOooooo much braver than I. I think I would pee my pants (literally) if I had a drill in my mouth with out anesthesia.