I've had several root canal jobs, and no particular problems with pain. One of them I didn't know about until the filling above came out leaving a spike. I still don't know which dentist did it, or when! I assume he never said it was a root canal filling he was doing. Or he did it during my wisdom tooth extraction under anaesthetic, which seems unlikely. (There was movement that night - it felt that my mouth was occupied by the megaliths of Carnac going down to the river to drink. But none since.) One dentist had a mirror on the lamp, and I watched what was done - no memory of spike being inserted. Weird.

Penny