Our Specialist Orthodontists | Perth Hills Orthodontist | Impression Orthodontics

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Impression Orthodontics was founded in 2013. Dr Sanj is the principal orthodontist at both our Perth Hills and Swan Valley clinics and is the only Australian Orthodontic Board-certified orthodontist in Ellenbrook and Kalamunda.

Dr Sanj Ratneser

Dr Sanj Ratneser

Principal Orthodontist BDS (ADEL) DCD.ORTH (MELB) MORTH.RCS (EDIN)

Dr Sanj is Impression Orthodontics' principal orthodontist. Sanj grew up in Perth and graduated high school at Christ Church Grammar School in Claremont. He had a strong desire to work in health, which led him to study dentistry at the University of Adelaide, where he completed his dentistry degree in 1998.

After a brief stint working as a dentist in Perth, Sanj caught the travel bug and moved to the UK to work in private practice with an emphasis on children's dentistry. In 2007, Sanj returned to Australia to undertake specialist training in orthodontics at the University of Melbourne.

Sanj was awarded the 2010 John McDonald award by the Royal College of Surgeons of Edinburgh. This is one of the world's most prestigious awards in orthodontics. Sanj was also awarded the 2010 Elsdon Storey research award by the Australian Society of Orthodontists for his research on dental decay around braces.

When not straightening teeth and looking after his young family, Sanj is a big fan of all things beach. He is an avid diver, golfer and cricketer. Sanj is also the current President of the Australian Society of Orthodontists WA branch.

Dr Fabiana Petrykowski

Dr Fabiana Petrykowski

Dr Fabiana Petrykowski completed her Bachelor of Dental Science at the University of Western Sao Paulo and a Specialization Course in Orthodontics in Brazil. She worked for 10 years before moving to Perth with her family in 2006.

Fabiana began working as a General Dentist after successfully passing the Australian Dental Council examinations. Whilst working as a dentist, she completed the Bachelor of Science in Dentistry with Honours at the University of Western Australia. She was then accepted into the prestigious Doctorate of Clinical Dentistry (Orthodontics) at The University of Western Australia.

Fabiana’s research evaluated airway morphology in patients with moderate and severe Obstructive Sleep Apnea using 3D imaging, as well as evaluation of bone density using micro CT analysis. Fabiana is a Specialist Orthodontist, and a full member of both the Australian Dental Association and the Australian Society of Orthodontists (ASO).

Fabiana is committed to providing her patients with exceptional orthodontic care and welcomes orthodontic referrals for children and adults assuring patients will have a very pleasant experience. She is committed to continuing education, regularly attending national and international meetings and conferences.

Fabiana has been married to Carlos since 1999 and they have a daughter, Luiza. Her main hobbies are yoga, cooking, travelling and playing the piano. In her spare time, she enjoys the beach, live music and spending time with family and friends.

Dr Christophe Duigou

Dr Christophe Duigou

BDSc (hons), BScDent (hons), DClinDent (ortho), MRACDS (ortho), MOrth RCSEd

Christophe was born in Melbourne, and raised in Perth’s northern suburbs. Christophe completed his Bachelor of Dental Science with honours at the University of Western Australia, following which he worked in both government and private clinical practice.

He then completed the research based Bachelor of Science in Dentistry with honours in 2013, and subsequently his specialty post-graduate training in the discipline of Orthodontics at the University of Western Australia.

He later completed examinations to become a member of the Royal Australasian College of Dental Surgeons (Ortho) as well as the Royal College of Surgeons of Edinburgh (Ortho).

Dr Duigou is a member of the Australian Society of Orthodontists, American Association of Orthodontists, European Orthodontic Society and World Federation of Orthodontists.

Christophe enjoys playing tennis, golf, and fishing; as well as spending time with family, friends and his pet great dane.

The invisible Orthodontist work with specially trained teeth straightening experts, who use unique systems – such as Invisalign – to give you the smile youve always wanted.
Australian Society of Orthodontists
American Orthodontics


56 Mornington Parkway
Ellenbrook WA 6069
Parking Available

(08) 9297 6823


115C Canning Road
Kalamunda WA 6076
Parking Available

(08) 6293 1337