Be very carefull what Vet you use to clean your Yorkies Teeth. I had my 3 lb Yorkies teeth cleaned and the Vet broke her jaw. He said she had some problems with her teeth.. So now she has a broken jaw to go along with her teeth problems, This Yorkie is 9 yrs okd. She has to be on meds for 30 days. This is a very sweet Yorkie. I have looked it up on the computer and this does happen quite often with the tiny ones.