Hi Idealist
The makers of Biotine mouthwash have a new product out for dry mouth called Oral Balance....very effective! I got it at Target
when my husband was faced with a similar barrage of dental work....he (with my blessing) decided to opt for dentures instead.
Honestly, not only did it not cost anywhere near what the other work would have, but he found a lot of health issues cleared up for him when his teeth were removed.
I know this isnt an option everyone wants, but just mentioning it