Please don't buy this product and try to scale your dog's teeth unless you are a trained canine dental tech! As a former (human) dental tech, I know the damage that you can cause in a mouth that is COOPERATIVE, let alone a wriggling DOG! You can get your dogs' teeth professionally cleaned, by trained techs, without anesthesia, for around $100 at various vet offices and pet supply stores. Call around, especially to holistic vets, or Google "gentle dental" or "anesthesia free dog tooth cleaning." You wouldn't buy a "Neuter Your Dog at Home" kit. Please don't take a chance on hurting your poor doggies, maybe causing bleeding, infection, broken teeth, pain, fear, and goodness knows what else.