Hey, wave. I definitely understand your wanting to explore all other options besides gammaknife, but I do think you should get a consult appointment with a radiation oncologist. They're the only ones who an give you all the facts on it- dentists and pain specialists aren't qualified to do so, just as a radiation oncologist cannot give you advice on dental matters.
And hi, marshmallow! I'm actually not new here, but I've forgotten two previous passwords for my old screen names and their associated e-mail addresses, which are almost certainly defunct.

I was on years ago as SmallWanderer and Sanora (or something like that). I'm 23 now, and have had GN for nearly 10 years. Blech!