No, haven't heard of it..I give mine greenies, and actually the yorkie that is almost 5, the vet said her teeth were in really good shape for being her age and her breed..The shih tzu is almost 10, and her teeth are still in good shape, although, she does need them brushed..actually, all of the dogs I've ever had always have had good teeth(knock on wood)..even the golden retriever we had put down when she was 18, still had all her teeth, and never had a brushing.. |