I can imagine my Dachshund breaking a tooth...he won't stop once he gets a hold of a bone. I guess that's where the saying "like a dog with a bone" came from !LOL
Raw bones dont' carry the risk of intestinal blockage that rawhides do. Rawhides don't digest in the stomach, and if your dog swallows too big of a chunk, then it will swell and cause some huge problems. We don't allow clients to bring in rawhides when they board their dogs just for this reason.
As with any chew, make sure you supervise your dogs at at least a little bit, so you can quickly react in the event they choke.