"Don't feed cooked bones to dogs, cooked bones will splinter and kill your dog" is a popular urban myth, repeated dutifully by every organisation afraid of being sued. Well, I went looking for research into the topic, and I found there hasn't been any from an animal husbandry or vetinary science perspective. But experimental archeologists have done some good research into the fracture behaviour of cooked and uncooked bones. And they found that there is no difference. https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/az1998n25-26a3.pdf Bones can splinter, animals can choke on pieces, and gnawing bones both cleans teeth and wears them down. Exercise good judgement in when, what and how much, but I haven't seen any evidence that would indicate we should treat cooked bones differently to raw.