Serious question: if you use a stick to poke the pit bull’s eyes out, will that induce it to release more easily?
Since I’ve never tried it, nor know anyone who has, I can’t say. I’m inclined to believe no as the pain would probably result in the jaw clamping tighter. I’d stick with prying open the jaw to obtain release, and then, perhaps, poke the damned things eyes out (making sure to penetrate into the brain of course).
Serious answer: Probably not.
Terriers bite and hold, instead of snapping and releasing like some other dogs; even if something(many were bred to catch rats, and foxes) is clawing at/biting their face. If you’ve ever tried to break the grip of a rat terrier or yorkie, you understand how tenacious they can be.
The best way to break it’s hold is to insert something behind the molars, between the soft gums, and wedge it open. Or, grab it by the back legs and sort of wheelbarrow it away in a circle; the dog will probably let go to keep it’s balance.