Dr. Preston received his DDS from Dalhousie University in 1995. After practicing as a general dentist in Fredericton for several years, he entered a residency program in Prosthodontics at the University of Toronto. Upon completion of his residency, Dr. Preston accepted a part time faculty position in the Implant Prosthodontic Unit at the University of Toronto and worked in private practice. Following a move to Halifax, where his wife was continuing her education, he worked in the faculty of dentistry at Dalhousie University while establishing his practice in New Brunswick. He maintains private practices in Fredericton and Saint John, New Brunswick.
In 2008, Dr. Preston completed and achieved Fellowship in the Royal College of Dentists of Canada, the highest level of professional certification attainable in each and any recognized dental specialty. Dr. Preston is also an examiner with the Royal College of Dentists of Canada.
Dr. Preston has always been an active member of organized dentistry. He has long served on the Board of the New Brunswick Dental Society and is a past-President. He currently sits on the Board of the Canadian Dental Association, and does committee work for the NBDS.
Dr. Preston is married to Ruth and they have one teenage son named Russell. When he is not working he enjoys travelling, photography and aviation.