Dr. O'Boyle went to the University of Texas Health Sciences Centre at San Antonio to study Prosthodontics and achieved his M.S. (Prosth) in 1997. While in San Antonio he won the Stanley D. Tylman award from the American Academy of Fixed Prosthodontics for his Research.
On his return to Ireland he completed his  Fellowship of the Faculty of Dentistry (Prosthodontics) at the Royal College of Surgeons in Dublin.