Abstract
Clear aligner orthodontic treatment is not a new treatment modality. Treatment with
the use of plastic invisible removable appliances counts more than 80 years when Kesling
introduced the tooth positioner, Sheridan introduced the Essix aligner and Align technology
its aligners. In-house designing and aligner fabrication has been around for more
than 10 years. The last years a digital techonological and material advancement has
changed the process of aligner manufacturing from the plastic foil thermoforming procedure
to a direct aligner printing one. Direct aligner printing posses advantages and some
disadvantages compared to the traditional thermoforming procedure. The aligner designing
and printing workflow entails steps that are sensitive to errors that must be carefully
analyzed and studied through scientific research. Due to the versatile printed aligner
designing capabilities, aligners can be designed to fulfill specific clinical needs.
A few evidence based scientific studies have been published which help to understand
and optimize the final printed outcome. Despite that, more studies are needed in order
to overcome difficulties and create an appliance that will meet the demands of a succesfull
orthodontic treatment.
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Article info
Publication history
Published online: January 11, 2023
Publication stage
In Press Journal Pre-ProofIdentification
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