Medieval Dentist

I had visit number three of my second root canal treatment today. My dentist is hardcore, man. He does the whole procedure with no anesthetic. I know. That sounds either impossible or extremely painful, doesn't it? Well, let me assure you, it's not impossible. Also, because of this, it takes like half-a-dozen visits. He drills into the tooth until he hits the nerve (yes, this hurts a lot), then injects the tooth with some drug that's supposed to "kill" the nerve. It doesn't do a very good job, especially when it comes to drilling out the actual root canals, which is what I went through today. If you drill deep enough, eventually, you will find some living nerve. That's what happened today... on all four roots. Not a good time.