Hi David-
One more thing, as far as the dry mouth goes, it's really more of a nusiance and you get used to it. These days with IMRT you get a lot of the function back. I had one of my major salivary glands removed too so I've got less spit to start with and it's still ok. It changes how/what you eat, but I think it's a small effect compared to what you dad is going through after the surgery. You do have to take good care of your teeth, brush and floss after every meal, etc. but you get used to that too.
Melissa