Brian,
My husband uses the biotene mouthwash and toothpaste I haven't seen the mouth spray yet,I'll keep a look out for that. He is just starting to get into the real problems with the dry mouth we use a humidifier at night which helps a little. Still dealing with alot of jaw and mouth pain see the dr friday and see what he thinks about all this pain that just doesn't seem to want to let up.
Take Care.