Australia's most experienced
Invisalign orthodontist*

*Based on cumulative case submissions


Adult treatment

Over 40% of our patients here at
Duncan Orthodontics are adults.

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6 month smiles

Have a wedding or special event
you need a beautiful smile for?

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Treatment cost guide

Get our guide to all your orthodontic
treatments, costs & payment plans.

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Why Duncan Ortho?

We want to help you become familiar with orthodontics. We're committed to providing you with our highest quality of care, pleasant and professional.

  • We have treated more invisalign cases than any orthodontist in Australia.
  • We've been treating adults and children in South Australia for more than 30 yrs.
  • Dr Duncan is a Black Diamond Invisalign Provider.

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Dr Duncan

Dr Grant Duncan

Our very own Dr Grant Duncan has treated more Invisalign cases than any orthodontist in Australia. We're proud about this accomplishment.

Read about Dr Duncan

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