Mark was a general dentist for 8 years in small Australian country towns. 

Mark then studied orthodontics at the University of Sydney and has practiced 200Km west of here in Australia’s oldest inland city, Bathurst for 33 years. He has been published in the Australian Orthodontic Journal, The American Journal of Orthodontics and Dentofacial Orthopedics and other publications. 

Mark has taught in Khon Kaen, Thailand, lectured at an Asia- Pacific Orthodontic Society congress and at Universities in Thailand and Australia.

He is currently adjunct associate professor at Charles Sturt University, Orange.