I asked people on Italian, Polish forums after jaw surgery and at least every 3rd patient got no more than 90% of feeling
Some of them much less
I think you confuse completely lack of feeling with no 100% regeneration.
There is no good German forum. Germany is specific country .
You can find a lot of patient opinions in many countries and almost nothing on German forums
I tried to find my surgeon and I didn't find - he is well known
Find me something about Prof Hoelzle (not my surgeon) on German forums. I'm waitng
It;s main German max fac surgeon
All "jaw" patients are informed that they may not get 100% feeling back, so why would they complain about that what they know ?
Why on this forum 50% of guys have permanent some loss of feeling ?