When I got Kaedyn, no raw bone could ever lift off the tarter he had. You might need to fork over the money to have the teeth cleaned initially, then brushing and/or regular raw bones will keep them nice and clean. You can also give her a raw bone here and there while she's still being fed kibble. Chicken and beef bones are incredibly cheap. Even if you can only feed them once a week, that's still better than no bones at all!