The rule of thumb is that what saliva you have at 24 months is about as good as it is going to get. Radiated salivary glands do not regenerate, but if some of the cells are not completly destroyed they come back partially. But by 2 years after radiation what you have is usually what you have.

Brian, stage 4 oral cancer survivor. OCF Founder and Director. The first responsibility of a leader is to define reality. The last is to say thank you. In between, the leader is a servant.