Dr Jessica O'Neil graduated as a dentist in 2002 from the University of Sydney and spent the next two years gaining valuable experience in a large teaching hospital before heading to England. She worked in the UK for 2 years gaining surgical experience and in Queensland in private practice, before returning to Sydney to study Periodontics during which time she received several awards and scholarships. Upon gaining her specialist registration, Dr O'Neil has worked in private practice in Sydney and is also a part-time lecturer and clinical tutor at the University of Sydney.