[dinosaur] T. rex capable of single-bite killing?

[Poekilopleuron <dinosaurtom2015@seznam.cz>]

Good day,

some time ago I was reading about presumed ability of adult Tyrannosaurus rex individual to cause a deadly injury with just single bite - not to the vital part of the body (like neck) but any part of the body - including tail, pelvic region etc. The jaw pressure of this theropod was so high, that it could actually cause any bone to "explode". Any bite of a T. rex would be a crippling action for any attacked animal hence. Is this true? And if so, how could one explain preserved marks of healed tyrannosaur bites on a certain fossil specimen? Thank you in advance! Tom