I had my wisdom teeth removed (in Canada) under local anesthesia. Two of them didn't strictly have to go and were pulled out in a couple minutes, the remaining

I had my wisdom teeth removed (in Canada) under local anesthesia. Two of them didn't strictly have to go and were pulled out in a couple minutes, the remaining two were impacted and pushing against the next molar. I can remember no pain during the procedure so lidocaine was quite sufficient. I can see why general anesthetic might be desired, the amount of force required to break the tooth is downright disturbing. I remember wondering if the surgeon ever slips with that punch and that the sound of breaking teeth in the absence of any other feeling was eery.