My crown was done in one day, as I said earlier in this thread, but it took far from 50 minutes. I waited 40 minutes between the root canal and the (permanent) capping while they made the tooth in their lab. Yes, some dentists, including mine, can do them in-house now (no 10-day delay to send them out).
But if you were in the chair for only 50 minutes, you didn't have a root canal. As others have mentioned, they probably just filed your tooth down since it didn't expose the nerve, put a temp on it, and you'll come back later for a permanent crown. That first visit could have been done in 50 minutes.
It would help N2N if you actually asked your dentist questions next time, so you knew what was going on.
"Jaws is the Citizen Kane of movies."
blocked: logan2, Diamonds3, Hamilton22