Hi Tom,
I am six months out of treatment, and I have recently (within the last few weeks) finally seen a small improvement in my saliva

. I have noticed recently I rarely have been getting the dry mouth attacks, and I am finally sleeping through the night - previously I was waking up 5-10 times every night with my mouth so dry I couldn't swallow. One thing I found extremely helpful in the meantime was the Biotene dry mouth gum. I carry a pack with me at all times and it has really saved me a few times at work when I was talking to a client and didn't have any water handy. Good luck!