Ok, have done the homework except some of the last pages on the second tgr thread.
Very interesting! I have succumbed to "neuromythology"! Annoying in that utterly incorrect info was shared to me by a ...doctor! Obviously not a neurologist!
This sums it up:
British Journal of Sports Med 2001;35:81–82
"Do Mouthguards Prevent Concussions?"
The ability of mouthguards to protect against head and
spinal injuries in sport falls into the realm of “neuromythology”
rather than hard science.32 Reading the original
studies cited as evidence for this effect reveals anecdotal
claims that can best be described as bizarre rather than
reflecting established medical principles. It is unlikely that
a mouthguard would offer effective protection against
brain or spinal cord injury, and the limited published data
are not compelling in this regard nor does it accord with the
known pathophysiology of such injuries" -
32 McCrory P. The eighth wonder of the world: the mythology of concussion
management. Br J Sports Med 1999;33:136–8.
note: It's annoying when tgr is seemingly more readable than here. At least the window is bigger.