lets see, he likely has about 23-25 teeth marks on the front and back of his shoulder and arm. Each bite appears large enough to need 20 stitches each so 20*23 =460 so the sweet spot would be between 460 and 500 stiches
maybe make it 30 stitches per tooth mark so maybe 700 stitches.
I've never had stitches either, I once needed them when my great dane chopped into my right wrist when I stopped he stole the kittens food and was going bite them over it. each tooth mark is about ___ wide (and deep TT_TT) and I was told they would need 1-3 stitches. But I never went to the hospital and they eventually closed up with no dent just very white-ish pink pigmentation where they are.
I'm anti animal cruelty and euthanasia, but I was prepared to take my dog out old yeller style after that. I think he knew too, because he never bite me again.