In a large crowd, the total number of teeth of all people combined divided by the total number of heads. In a well eduated crowd with reasonable oral hygene, one would expect the tooth to head ratio to be close to 32:1. If you were to attend a monster truck rally or a wrestling match, one would expect the tooth to head ratio to be around 12:1. At a bluegrass concert it can sit around the 5:1 or 4:1 area.
I have stopped going to Ottawa Senators games when the Leafs are in town because the tooth to head ratio is just too low to handle.
by scow buba March 22, 2009