Hey Mark,
I’m 6.5 years out from treatments.
As for saliva, I have none and appears that I never will.
I have tried prescription, mouth rinse, 3M spray, Xylitol and none help and also creates a gummy like substance to my mouth.
I drink water all day long and carry a water with me while outside.
I have a hard time carrying on conversations due to the extreme dryness.
I brush my teeth several times per day and also apply prescription fluoride toothpaste at least 3 times per day.
Eating bread was completely out of my diet up until about a year ago.
Bread is still extremely difficult but small bites can be washed down with liquid.
But actually, I wish I would have left bread right out of my diet because we don’t need it and it seems to make my joints ache.
I was only able to eat oatmeal for the first year but I survived.
As far as speech therapy, I found it to be a waste of time and money!
Just remember that everyone responds differently and you may start eating soon!
Best wishes

MOJO