Hi there --
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I have seen all of these splinter and cause problems ranging from bone pieces entering the intestine and causing injury to the intestine, to splinters in the mouth, to pancreatitis from bone marrow/bone triggering inflammation of the pancreas.
Raw bones are less likely -- but only in a whole form. These should be a size large enough that the dog cannot break it apart -- and also should be removed if it is cracked or broken at all --
Size is very important -- as a larger bone that the dog cannot crack will prevent access tothe marrow, and also prevent splinters.
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