really Rexes teeth were 1.5 inches wide and where used to crush. In fact it had a bite force that was 4 tons per square inch. some people even argue to say it could of reached 20 tons. carcharodontosaurus teeth were thin to cut it most likely had a bite of 1 ton. but if he used that bite on bone or thick muscle like trex had on his legs and neck. also to add to the death trap that is a trex jaw it way of had bacteria. but so did carcharodontosaurus. i thing that i would rather be near a carcharodontosaurus than a trex.