Some general dentists have obtained certification that entitles them to carry out Invisalign treatment. However they are not specialists and are not qualified to treat with any other type of braces.
For treatment with braces you need to see a specialist orthodontist. These practitioners have had three to four years of additional training in the specific field of orthodontics on top of their dental degree. The training qualifies them for registration with the Dental Board of Australia as a specialist and enables them to gain comprehensive experience in their field of expertise, with their sole professional focus being on correcting the position of teeth.
Seeing a specialist orthodontist for your orthodontic treatment means you receive specialist care from a highly trained and experienced expert.