Western MA Hunter

I have a couple of bear skulls that I had cleaned a few years ago. I picked up feweuropean plaques and was curious on how to mount the bear skull to the plaque. Do you drill through the base of the jaw and screw it to the plaque? Do you glue it? Also, do you glue the top and bottom jaw together or is there another means of keeping the upper and lower jaw together? Any info. would be greatly appreciated.

Thanks