came across this on BSMW, an article about how a dentist from South Weymouth, invented a mouthpiece has all but eliminated concussions for the Pats.. not sure how this fits in with Ted Johnson's claims.. but a very interesting article and the NFL's reluctance. http://sports.espn.go.com/nfl/news/story?id=2314899 Even as the NFL changes rules and helmet makers improve their designs, the league says concussion rates have stayed level at about 0.4 incidents per game in recent seasons -- about 100 per year. But teams report only half of these. In the four seasons between 2000 and 2003, clubs listed a total of 203 concussions on weekly injury reports, according to data compiled by the Pittsburgh Tribune-Review. Not all teams suffer equally. Some clubs reported multiple head injuries in each of the years. The Colts listed 20 concussions. The Patriots listed zero. And a small-town New England dentist, who literally has been inside Patriots players' heads for 25 years, says he knows why. ....The NFL, however, doesn't require mouthguards, and 40 percent of players don't wear them. Elliot Pellman, the league's medical liaison and head of its committee on mild traumatic brain injury, has yet to be impressed by the claims that link mouthpieces to the prevention of brain trauma. "I can give you 100 dentists who say they've got the best method for reducing concussions," he says. "Many times I've had them in my office. One brought me a box of cookies. My response to that person and to 20 others is that I'm intrigued, but it's your job to prove to me your idea does what you say it does."