Had all 4 out 3 years ago in hospital under a general - that was done at 12.30pm mid day.
I discharged myself at 8-30pm as I hate hospitals and got a mate to pick me up.
Suffered not much pain (until the slow release pain killer ran out) then just had swelling and bruising for about 10 days. I was back in work after 4 days as the day time tv was causing me more pain than the holes in my mouth.
Best thing I ever did