Recent studies have confirmed that thermoform aligners do not have the predicted efficacy for various orthodontic tooth movements. Primary problem has been the plastic material used for thermoformed aligners. It is stiff, does not adapt to teeth unless a bite force is used for first two days which results in its deformation. Along with deformation at the gingival level the magnitude of force delivered is very high and decay is very fast, both are undesirable.
Recently Graphy from Korea has introduced new resin material TA-28 which has shape memory properties and allows direct printing of aligners. This presentation will describe the evidence-based studies, will discuss the workflow and advantages of using shape memory aligners with examples of treated patients.
Biomechanics and State of Current Thermoformed aligners
Why Direct Printing and Shape Memory Aligners
3 D printing Workflow
Evidence Based studies
Shape Memory Clinical Cases
TADs and Shape Memory Aligners
Sponsor: Graphy Company
