Hey Maryb this is a bit of a double bind for me. I used to go to dentist that used one with out adrenalin but could feel eveything. I was later diagnosed with ehlers Danlos - the consultant said if others things ticked the box for him and the patient said and the other thing dental anasthetics don't work for me he considered it a diagnsotic. So i have to have the usual stuff, i do seem to be ok - well no different to the usual rubbish anyway but I am better with things I encounter very rarely and then as a one of hence the reason I would be more concerned with a route canal/implant etc. Something like those would probably seem fine at first but my health would suffer long term as that seem to be the pattern with me.