It can take every bit of 2 years for your saliva to repair itself as much as it will. I seriously doubt you will regain 100% so don't be disappointed if you don't. As Christine and Paul have mentioned 7 weeks is waaaayyyy to soon to be concerned about lack of saliva swallowing issues. Be patient and avoid dry foods. Stick to high fat content juicy foods.

David

Age 58 at Dx, HPV16+ SCC, Stage IV BOT+2 nodes, non smoker, casual drinker, exercise nut, Cisplatin x 3 & concurrent IMRT x 35,(70 Gy), no surgery, no Peg, Tx at Moffitt over Aug 06. Jun 07, back to riding my bike 100 miles a wk. Now doing 12 Spin classes and 60 outdoor miles per wk. Nov 13 completed Hilly Century ride for Cancer, 104 miles, 1st Place in my age group. Apr 2014 & 15, Spun for 9 straight hrs to raise $$ for YMCA's Livestrong Program. Certified Spin Instructor Jun 2014.