Dr Freezer graduated from the University of Adelaide with a Bachelor of Dental Surgery in 1981 and has been an orthodontist since 1985 when he received a Master of Dental Surgery, also from the University of Adelaide.
Since that time has been active in the Australian Society of Orthodontists and the Australian Begg Orthodontic Society. Dr Freezer has been committed to further orthodontic research and has been published in orthodontic textbooks as well as national and international Orthodontic Journals. He has lectured extensively both in Australia and overseas.
Dr Freezer has worked at a specialist orthodontist practice in Adelaide since graduating and has also taught both dental students in Adelaide and orthodontic graduate students in Adelaide and Sydney during that time.
He was inducted as a Fellow of the International College of Dentists in recognition of his contribution to dentistry.