http://fpa-support.org/trigeminal-neuralgia/
Hi Hockeymom86,
This is the TNA Facial Pain site Home page. This would give your dentist a small glimpse into the pain and misery TN, and all Neuropathic Facial Pain, causes.
You are very brave to be going for treatment, I wish you well and will be keeping my fingers crossed for you.
Dave.