Hi Reg,
I know what you are talking about: the face that can move but feels numb to touch. I had this after my second surgery. The damage in this instance is done to a trigeminal nerve, particularly, the fibers that control sensation. There are also fibers that control pain receptors, so I could experience the pain of a needle prick but could not tell that a drop of water was running down my face.
I woke up after my second surgery with the right side of my face completely numb; in 10 days only the portion of the face below my eye was numb. The teeth, palate and tongue (right side) were numb as well and I was slurring the speech, too. This happens because the brain gets no input as to were the numb areas are , especially relative to each other.
At three months post-op, I got my first major improvement and all this slurring started going away. In June it is going to be 4 years post op and I am happy to report that I currently have a small patch of numbness around my mouth. It is very superficial and does not involve my teeth or my tongue. I dot no slur, either.
How bad is your numbness ? Did it improve over the years?
Eve