Hi Minnie,
Right after getting over my surgery I started email contact with a Dr. Andy Wolff in Israel who is the developer of a device to stimulate saliva production. See this article on the OCF website:
http://www.oralcancerfoundation.org/news/story.asp?newsId=626#top I tried to get involved in the US testing of this product, but I'm not sure if that has even ocurred yet. I started emailing him last June and then contacted him again in November. He had promised to keep me in the loop, but I have not heard from him since then.
I have sent off an email to him this morning and will let you know what he has to say.
Jerry