I had a tooth pulled by a dentist on 2\14\11 which resulted in nerve damage. several drs l8r, still unsure which branch is causing pain. pls help.

First of all...: The affected nerve is Trigeminal nerve. Although I don't understand why it matters which nerve is causing the pain. You need to see a pain specialist. They are the only doctors with the current knowledge needed to help you with your problem. Then you need to follow their advice. See a board certified specialist in pain management and ask for an opinion.