Would this be a nice gift for my orthodontist?

[Saulo Gonzalez]

My orthodontist has been working on me for over two years. We will be removing my braces in a few months. I wanted to thank her for all her hard work. I came across this pen while shopping at Tiffany's. I have seen caduceus with "D"s on them to signify dentistry, but this is the only one Tiffany's offers. Would this be appropriate or is it more for Medical Doctors? I wouldn't want to offend her by getting something not related to her field.