Meet our team of

Working alongside Dr Freezer is an expert team of specialised dental hygienists who provide treatment, advice, care and support to all of our patients.

Our hygienists provide vital roles in the treatment of our patients—taking records, x-rays, performing scans, placing of braces, and the removal of wires at the end of treatment amongst other things.

Dr Simon Freezer

MDA (Adelaide), FICD, FPFA

Providing first-hand specialist care, advice, and treatment Dr Simon Freezer oversees every step of his patients’ treatments—driven by an unwavering commitment to achieve the best results for everyone he sees.

Dr Freezer believes that all his patients are entitled to not only the best results but that the journey to get there should be as easy and straightforward as possible. He has a 30-year legacy of thousands of patients that have benefited from having their treatment at Freezer Orthodontics.
Growing up in Tasmania Dr Freezer graduated as a dentist from the University of Adelaide in 1981. After two years of dental practice in Hobart, he returned to Adelaide to complete the specialist orthodontics program. Since then he has settled in Adelaide and operated his own specialist practice—primarily in the southern suburbs—for over three decades.

Currently he teaches the next generation of orthodontic specialists, having been a Clinical Senior Lecturer in Orthodontics and a research supervisor at the University of Adelaide for many years.
In addition to his specialist practice and lecturing, Dr Freezer is a leader in orthodontic innovation and research. He has been frequently published in orthodontic textbooks and international journals and has lectured extensively in Australia and around the world. He was awarded the most prestigious research award of the Australian Society of Orthodontics (ASO), the PR Begg Research Award in 1988. His recent research has focussed on how to accurately predict how patients will look after treatment.

Dr Freezer has been an active member of several state and national orthodontic associations throughout his career—including president of both the Australian Society of Orthodontists (SA) and the Australasian Begg Society of Orthodontists, the latter of which he was awarded an Honorary Life Membership. He is an invited fellow of the International College of Dentists and the Pierre Fauchard Academy in recognition of his contributions to the field of orthodontics.

Simon is married with two children. His interests include being with his family, making guitars and trying to play golf.

Dr Sophie Isaksson (née Roberts)

BDS (JCU), BScD (Hons) (Adl), DClinDent (Ortho) (Melb), AOB certified

Dr Sophie Isaksson has worked alongside Dr Freezer for nearly 10 years during her dental studies. She is now excited to return to the team at Freezer Orthodontics as a Specialist Orthodontist.

Dr Sophie was born and raised in Adelaide, and moved to Cairns to complete her Bachelor of Dental Surgery from James Cook University in 2018. She then moved home and worked as a general dentist for two years whilst concurrently completing her Bachelor of Dental Science (Honours) research at the University of Adelaide.

In 2021, Dr Sophie moved away again to undertake a three-year specialist training programme, the Doctor of Clinical Dentistry degree specialising in Orthodontics from the University of Melbourne.

Dr Sophie’s post-graduate research examining the three dimensional effects of the Twin Block appliance took her to the University of Michigan where she collaborated with international experts. She presented her findings at the Australian Begg Society of Orthodontics Meeting and was awarded best presentation.

Sophie is a professional member of the Australian Dental Association and the Australian Society of Orthodontists and a certified member of the Australasian Orthodontic Board.

Outside of work, Sophie enjoys playing netball, water-skiing on the Murray River and cheering on the mighty Adelaide Crows AFL team.

Cindy Andretzke

Dental Hygienist

Cindy holds almost as much time-earned experience as Dr Freezer, having started working at Freezer Orthodontics in 1992. Cindy is unquestionably an integral part of the practice. Over the years Cindy has taken short breaks away for family but has always returned to continue her work here. Her experience and caring, sympathetic attitude make her a key member of our team. Cindy has three adult children—all of whom have been treated here.

Sue Tosh

Dental Hygienist

Sue has been working continually at Freezer Orthodontics for nearly 20 years. Sue has a genuine love of people and a commitment to helping patients on their journey to achieve the best possible results. Sue brings a wealth of knowledge and experience and is a well-respected member of our team. Both Sue and both her two children have had their orthodontic treatment here.

Jess Grech

Dental Hygienist

Jess is the newest member of our hygiene team. She initially worked as a dental assistant and then as our receptionist proving herself to be invaluable in everything she did. After graduating from her two-year dental hygiene diploma course at the end of last year. While this is her first year with us as a hygienist she has been a valued member of the team at Freezer Orthodontics for more than 7 years.