Our Story

We were created by an orthodontist for orthodontists.

Over 12 years ago, our founder Dr Grant Duncan made a decision that would forever change the way he practiced orthodontics. When he was starting out, there was a huge opportunity to bring clear aligner treatment to the masses. Invisalign® treatment was and still is the market leader - and he hitched his wagon to that star.

Now, with the expansion of his proven processes and growth solutions for orthodontists across Australia, New Zealand, the UK, Ireland, and North America, now you can make that change too.

‘ After starting just 10 Invisalign® cases a year, I grew to 300 Invisalign® cases in 3 years, and I now treat more than 450 Invisalign® cases a year over 90 clinical days across Australia. Throughout Australia, the UK, Ireland, New Zealand, and North America, all of our members are able to tell their friends and colleagues similar success stories to my own ’ - Dr Grant Duncan


Out of all the decisions i've made in private practice, TIO ranks one of the top, if not the top decision.

— Dr Alex Waldman


Our foundation in the orthodontic industry is the secret to our success. And we are proud to offer TIO members an all encompassing program that is designed to take your practice from 30 cases to 300 cases in just 3 years.

About Us Join TIO
Our story

Our growth timeline

From 30 to 25,000 cases and growing:




New Zealand











Over 400 orthodontists, treating over 25,000 cases annually, with an average of 100+ cases a year.

Our members treat 1 in 3 cases in Australia and 1 in 5 cases in England.

Read our success stories