Jurassic Fight Club, and shed teeth

["Stephen V. Cole" <adbinc@arn.net>]

Question from a non-paleo engineer

Four raptors (out of ... ten?) killed bringing down dinner. Either 
this has to be a seriously unusual situation or the raptors breed 
fast and don't eat very often. The math doesn't work.

I keep hearing about shed teeth at "dinner sites" (consumed carcass 
areas?) showing who ate what. A given theropod has, what, 40-80 
teeth? Do some math. How many can he shed at each meal? How fast do 
they grow? If he sheds two of 40 per meal (meaning there must be 
three or four theropods at dinner given the number...? of teeth 
found) and eats twice a week, each tooth takes 10 weeks to grow back? 
Does that math work with known tooth replacement rates of Gators?