Brickingit I had all 4 out under local an. Apparently they can't numb both sides of your mouth at the same time for safety reasons so that's why it done 2 and 2. Felt like crying when I was told - I asked the dentist could I not go into hospital and get them all done (and my BUPA would have covered it!) I guess he was right, and unless you have major problems or they haven't come up properly, you shouldn't be having a GA (Heard from someone recently that it take 1 month for your body to recover from a GA)
Anyway back to the teeth. One was badly impacted (quite common) and had been growing sideways for years. The other 3 popped out no bother - nearly kissed him I was so relieved with how easy it was. The impacted one had to come out in 3-4 bits, but there was no pain whatsoever. Just a bit uncomfortable with having your mouth open for a while. Very little pain in the following days and was straight back to work. Just goin with the attitude that they are the professionals and you are in good hands - Postive Mental Attitude and good strong over thecounter pain killers!