I have heard that feeding raw with kibble is a no no due to the rate of digestion for each is very different.
this is a myth. Many people feed kibble + raw and have zero problems.
that said I wouldn’t rely on small bones like chicken to be all that useful for teeth. My dogs get marrow bones all of the time. I am talking cannon bone. They can’t swallow them, and they last forever. I sometimes resuse them by stuffing them with PB, or raw chicken, cottage cheese, apple sauce etc.
BUT the marrow bones are readily available, and so delightful according to my dogs
the hard bones won’t clean your dog’s teeth- it’s the shearing action of the teeth going through the meat/relative soft bones that clean the teeth. Most dogs, given hard marrow bones, don’t actually even chew at all- if you watch, they will lick the marrow/ stuffing out without doing any chewing. They love it, yes, and it keeps them busy, but it doesn’t clean the teeth. In fact, many would say these are not good for dogs- dogs who do bite down on hard beef leg bones often end up breaking their teeth. Shear fractures of the molars. I personally avoid giving marrow bones to dogs. Stuffed kongs work just as well without the risk of fractured teeth.
It’s true there are no studies proving raw diets are better than kibble. There are, however, a lot of studies on what dogs need in their diets for health- certain amounts of certain minerals, vitamins, amino acids, etc.
and the nutritional content of a properly balanced raw diet, oddly enough, tends to match the “ideal” profile of a diet for a dog. And doesn’t match the profile of most commercial kibbles. A raw diet is very high in protein and fat, and very low in carbohydrates.
I personally don’t think that the diet needs to be raw per se- if you replicate the proper nutritional content in a kibble or cooked form, that should work just as well as a properly balanced raw diet. Note that most home-made “random parts from the grocery store” raw diets are not balanced.
However, nothing really works as well as raw meaty bones for cleaning dogs teeth. And dirty teeth are a big health problem for dogs these days.