Dentists inject into the head more most other medical specialties and have more head and neck anatomy classes/training than most.  Who knows facial muscles better, knows structures better, the insertion and origin of muscles and where effects will occur?  Dentists. Not allowing dentists to do Botox and fillers facially for cosmetic and clinical necessity is undermining our profession, while we stand by and watch (in some jurisdictions) assistants with 6 month certificates and GED's place materials via injection.  Most my classmates and I have at least 8 years of education past high school just to become a dentist. With continuing education protocols, I estimate that I have 14 years+ of training post high school, and I am sure this is not uncommon with my peers.  Our profession needs to stop being minimized by being relegated to "tooth doctors"- and allowing dentists to do Botox is merely a stepping stone.