There is a Vet Clinic in Maitland, Florida, that is a type of "specialty" practice.
We used a Veterinary Dentist there because our 10 lb dog had a persistent tumor in his mouth.
When it was removed by surgery at a local clinic, it grew back, much to our dismay.
The Maitland Dentist was fabulous, one surgery, and no more problems.
They have many different Vet specialists working out of that one location.
Good luck with your Yorkie.
AVS Specialists