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 & Dr De Angelis are Platinum Invisalign Providers.

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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.

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Dr Daniel

Dr Daniel De Angelis

An Australian Platinum Elite Certified Invisalign Orthodontist, Daniel has been in specialty practice for eight years and thoroughly enjoys working with people of all ages including adults, adolescents and children.

Read about Dr De Angelis

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