I do have some saliva, but it's still compromised and my mouth still goes dry. I don't have a tongue, so manipulation of food is difficult. I find taking a tiny sip of water, then eat, then another sip of water, seems to help. Recently I've been having a cup of sauce/gravy/consomme to dip my food in, plus I can sip at it too.

F 39 x-smoker no alcohol
05/20/19 T4aN1/N2bM0 SCC a whopper of a tumour at 8cm long & 4cm wide
Pembro pre & post surgery
RIG
Glossectomy ND RFFR 08/13/19
RT x33
2x cispltin
So far, no evidence of disease
Now an author of a recipe book for mouth cancer patients