Specialist Orthodontic Care For
Children, Teens and Adults
Here at Adelaide Orthodontists we have a philosophy based around personalised and evidence based care. We understand that every smile is unique — and so is every treatment plan that we offer. We create tailored treatment plans that balance function, aesthetics and long-term stability for your smile and aesthetic goals. Whether you prefer a subtle, discreet option like Invisalign, clear braces or Incognito lingual braces, or you require more comprehensive bite correction, we’ll guide you every step of the way.
Hear From Our Happy Smiles
Our Point Of Difference
Our mission is simple: to create healthy, confident smiles through specialist-led orthodontic care. For more than two decades, our experienced orthodontists have helped thousands of Adelaide families achieve straighter teeth, improved bite function and long-lasting confidence — all within a friendly, supportive and highly personalised environment. From early orthodontic assessments to braces, clear ceramic braces, Invisalign and advanced solutions like Incognito lingual braces, our practice offers the full spectrum of orthodontic treatments for every age and stage of life. Why Choose a Specialist Orthodontist? Orthodontists undergo years of additional training beyond general dentistry, specialising exclusively in the diagnosis, prevention and correction of teeth and jaw irregularities. This advanced education allows our team to treat everything from simple crowding to complex bite issues with exceptional precision and care. Choosing a specialist means you get more accurate treatment planning, faster, safer and more predictable results, access to advanced orthodontic systems, treatment tailored specifically to your goals and facial structure and better long-term outcomes.
Meet Your Orthodontists
Dr Petrina Kat
Specialist Orthodontist
Dr Petrina Kat discovered her passion for orthodontics as a teenager undergoing treatment herself. After graduating from the University of Adelaide in 1995 with a Dentistry degree, she practised as a general dentist before being accepted into the highly selective Orthodontic Specialist Training Program. She completed her specialist qualifications in 2000 and has worked exclusively in orthodontics ever since. Dr Kat loves working with children, teens and adults, and finds great joy in seeing her patients’ confidence transform throughout treatment.
Dr Darren Di Iulio
Specialist Orthodontist
After obtaining his general dental qualifications at the University of Adelaide, Dr Darren Di Iulio spent a decade as a private practice dentist while also teaching undergraduate dental students. His interest in complex bite and restorative cases led him back to university, where he completed his specialist training in orthodontics. Dr Di Iulio joined his wife Dr Kat in 2007, bringing with him a strong background in comprehensive dental care and interdisciplinary treatment planning — particularly for adult patients requiring both orthodontic and restorative collaboration.
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Frequently Asked Questions