Our Team

Our specialist orthodontists and our amazing staff are here to assist you in achieving your perfect smile.

Dr Guy Burnett Orthodontist

Dr Guy Burnett is one of three partners in our practice. Dr Burnett obtained his orthodontic degree at the University of Adelaide in 1979 and is a full member of the Australian Dental Association and the Australian Society of Orthodontists. He is currently a clinical orthodontic postgraduate tutor at the Adelaide University, a position he has held for over 30 years.

Dr Burnett was president of the Australian Society of Orthodontics SA over two terms and presents both Nationally and Internationally.  He has a special interest in the treatment of sleep apnea.

Dr Eden Lau Orthodontist

Dr Eden Lau is one of the partners in our practice.  Dr Lau holds many professional qualifications at the University of Adelaide and also internationally.  He is a full member of the Australian Dental Association and the Australian Society of Orthodontists.  Dr Lau has been continually involved with dental education in Australia and has held various positions at the University of Adelaide such as clinical tutor, clinical examiner and subject coordinator.  Dr Lau also held a position of Senior Visiting Specialist Consultant at the Adelaide Dental Hospital.  Dr Lau has authored a dental research article published in the Australian Orthodontic Journal and also writes a weekly dental column in an Adelaide newspaper.  He is also bilingual and speaks fluent Cantonese.

Dr James Moses Orthodontist

James Moses is one of the partners in our practice.  Dr Moses graduated from Sydney University with his BDS dental degree in 2001. He practiced general dentistry for several years before returning to study Orthodontics at the University of Adelaide. During these years, he served in the Australian Defence Force as a Dental Officer and received decorations for his dental services. After leaving the ADF, James worked in Mandurah, Western Australia in a busy country practice and focussed on aesthetic and paediatric dentistry. He was also closely involved in dental training and education.

Having completed his specialist orthodontic qualifications, he attained his Membership in Orthodontics with the Royal College of Surgeons (Edinburgh) and with the Royal Australasian College of Dental Surgeons.  He is a full member of the Australian Dental Association and the Australian Society of Orthodontists.  James regularly attends professional conferences and recently presented his research at the WFO Congress in Sydney.

Janina Polias Practice Manager

Janina has been involved in the dental industry for over 30 years and joined ONiA in 2009. Her clinical background adds to her many years of Practice Management experience, giving her a wealth of knowledge of all things dental, especially Orthodontics. Janina oversees all 9 ONiA practices and is based in our Adelaide CBD headquarters. She thrives on excellent customer service and is always happy to help. Janina enjoys showing pedigree cats, travel and entertaining family and friends.

Erin Lindsay Senior Office Administrator

Her official role is ‘Country Co-ordinator’, ensuring that all our regional locations are running efficiently, fully stocked and ready to welcome patients. On a Monday Erin doubles as Dr Nguyen's assistant in Murray Bridge. Originally a patient, Erin went on to start a traineeship with ONiA in 2012 and completed her Dental Assisting Cert III. Her dedication to every aspect of her work is appreciated by both ONiA and patients alike. Erin has recently married and enjoys camping and looking after her border collie, Ollie.

Vicki Tuck Senior Office Administrator

Vicki has been with ONiA since 1994 and has a scientific background, having worked at The University Adelaide, Department of Dentistry. Vicki is ONiA’s stock and purchasing manager, our star Xray tracer and also travels with Dr Lau, assisting in our McLaren Vale and Victor Harbor rooms. She enjoys travel, gardening and socializing with family and friends.

Tamara Walsh Hygienist

Tamara has been working in the dental industry for 24 years, starting work as a dental assistant before studying an Advanced Diploma of Oral Health. She has worked in a general dental practice and is loving the transition to orthodontics @ Onia. She is very passionate about patient's oral health & enjoys educating & motivating patients. Tamara is a busy mum of two children, a 13yr old son & 10yr old daughter who are very active playing a range of sports. She loves spending time back in the Riverland where she grew up.

Abbey Lindsay Receptionist

Abbey runs the front reception in Adelaide with true flair and has been with ONiA since 2017. As well as being an amazing Receptionist, she is always keen to help out with any other tasks and is a fantastic team member. Abbey enjoys keeping fit, healthy living and is an avid Port Adelaide supporter (which we forgive her for!). Oh and she also happens to be Erin's little sister.

Cheryl-Joy Mogg Dental Assistant

Cheryl-Joy, better know as CJ joined ONiA in mid 2015. She holds a Dental Assisting Cert III and works with Dr Lau in our Adelaide and Semaphore rooms. CJ embraces all aspects of patient care and been a dependable team member since day one. She enjoys family time and learning new things.

Hannah Moat Dental Assistant

Hannah joined our practice in 2019 and was a patient of Dr Moses in Port Augusta. She holds a Dental Assisting Cert III and now assists Dr Nguyen in both our Adelaide and Semaphore rooms. Hannah is past equestrian state champion and now enjoys the more sedate pastime of playing video games.

Charise Mozol Dental Assistant

Charise works exclusively in our Ceduna rooms with Dr Nguyen and joined ONiA in 2024. She knows just about everyone in the area and is a great asset to our team.

Katy Hunkin Dental Assistant

Katy works with Dr Moses in our Victor Harbor rooms, joining ONiA in 2012. There is nothing Katy won’t do to help out and every task is done with a smile.

Samantha Rhodes Dental Assistant

Sam started with ONiA in 2014 and runs our Whyalla rooms. She works with Drs Lau and Moses. In true country form, Sam is a friendly member of the ONiA team and keeps our busy Whyalla practice perfectly run.

Lauren Hersbach Dental Assistant

Lauren joined ONiA in 2021 working in our Port Augusta rooms. She works now works in the Adelaide city office with Dr Moses is a true asset to our team! Lauren oozes happiness, but unfortunately her cheery singing voice leaves a lot to be desired!

Call Book

3rd Floor, Bagot House
198 North Tce
Adelaide SA 5000

Ph: 08 8227 0336
Fax: 08 8227 1626
Email: info@onia.com.au