About Us

Blacktown Orthodontist – Meet Dr. Chang

Hi, I wanted to write a personal foreword before the introduction about myself. Each and every working day, we see patients whom are frustrated with hiding their crooked teeth and want to feel more confident on smiling, whom want to socialize more with friends and NOT hide their smile, who enjoy taking selfies and would like to feel comfortable when doing so. We see parents who would like the best for their kids, who would like their kids to feel confident when undertaking public speaking, singing or performing on stage. We meet office workers and professionals and tertiary students, whom would like to feel this confidence come through their smiles, when undertaking presentations and meetings. We see men and women, young and young at heart, whom would like to have that new smile for their one-time special event.

We also see all of those at the end of their orthodontic treatment on a weekly basis, the time when the braces or aligners are completed and they have achieved their new smile, and the sense of joy I see in their eyes and faces, it is a truly happy one. To me, this is one of the best feelings in the world. A time of celebration, and as a parent of 3 children myself, I feel proud and blessed to be in the company of all of you.

Dr. Chang is an Australian trained Blacktown orthodontist. Dr. Chang received his Bachelor of Dental Surgery Degree with honours from Sydney University in 1999 and had a successful dental practice in Canberra for 6 years. Dr. Chang then pursued his orthodontic training in Adelaide, where he received his Doctor of Clinical Dentistry in Orthodontics from the University of Adelaide, and was granted membership of the Royal Australasian college of Dental Surgeons and The Royal College of Surgeons of Edinburgh in the specialised field of orthodontics in 2008.

Dr. Chang has exclusive experience in the orthodontic treatment of both children and adults of all ages. He has actively participated in ongoing continuing education in all aspects of advanced orthodontics, including the latest techniques and technology of braces, Invisalign and hidden braces. He also presents regularly to groups of local dentists to promote awareness in varying areas of orthodontics. Dr. Chang is a member of several professional associations. These include the Australian Society of Orthodontists, Australian Dental Association and the Royal College of Surgeons, Edinburgh. He is fluent in both English and Mandarin languages.

Dr. Chang is passionate about creating beautiful smiles and giving his patients the confidence of a straight and healthy smile. As a parent of 2 growing children, Dr Chang believes a positive, encouraging practice environment where children, teenagers and young adults undertake their teeth straightening experience, also plays an important role in the character development of these individuals, and this is something that our practice also hopes to impart unto each individual patient.

Dr Chang, Blacktown Orthodontist and the team regularly attend lectures and conventions to update their knowledge and new techniques, particularly with Invisalign and Lingual braces. Dr Chang is also very active in providing dental education for the surrounding dental surgeries, organizing lectures and discussions with the local dentists. The latest lecture/ topics he gave for more than 30 local dental surgeries were ‘Child early orthodontic treatment options’, ‘How to minimise teeth removal for orthodontics’, ‘Invisalign- Is there a place for this’ and ‘The impacted tooth‘.

Meet the Team

Maria Iza Vargas

Oral Health Therapist


Hi, I am Maria and I am one of the Oral Health Therapists here at Smiles & Faces Orthodontics. I completed a Bachelor’s Degree in Oral Health at the University of Sydney allowing me to be a dual qualified dental hygienist and therapist.

As an Oral Health Therapist, you will see me work alongside Dr. Chang and the staff during your orthodontic treatment. I am involved in providing education on dental health, plaque control and nutrition and coaching you on how to look after your teeth, gums and orthodontic appliances. I take orthodontic records including photos and molds of your teeth, change wires and elastics, remove braces as well as fit retainers and appliances. I also perform teeth cleaning while ensuring that your time with us is a pleasant and comfortable experience.

I have always been interested in the health and well being of patients and thus prior to studying Oral Health, I completed a Bachelor’s Degree in Medical Science in 2008 at the University of Sydney and have also been working as a dental assistant. I am a member of the Dental Hygienists’ Association of Australia and the Australian Dental and Oral Health Therapists’ Association.

In my free time, I like to go on food trips, watch movies and do arts and crafts. I enjoy travelling back to Philippines and spending time with my family and relatives. Since I grew up there, I am also fluent in Tagalog

I thought I’d share this with you as well. I remember back when I was 10 years old, I was told by a dentist not to enter this profession as most people will dislike you for what you do and so who would have thought what I got myself into! But after seeing patients and their families’ with smiles on their faces as they walk out the door, knowing that you have made a difference, I know I made the right decision because this is what I love to do and witness. So I look forward to helping you in your journey in achieving that healthy and beautiful smile, together with Dr. Chang and the rest of the friendly staff here at Smiles and Faces Orthodontics.

Here, I talk about the role of Oral Health Specialists in your orthodontic care.

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