New leah,

There are other treatments out there for TN'ers. If you or your Mom haven't done so, you may want to order the book, Striking Back, which is offered through the Trigeminal Neuralgia Association (check the stickies at the top). The book give a lot of insight into the available procedures and the expected outcomes too. Also, has she consulted with a Neurologist or Neursurgeon? The latter of the two would also be an excellent source.

Good luck, EE