Force and Diameter Influence for Orthodontic 3D Printable Springs

Objectives: Digital and additive technologies such as 3D printing emerge in orthodontic treatments. Consequently, new flexible printable material was developed to widen treatment possibilities.
Methods: For mechanical investigation, 3D printable springs with different diameter (0.9mm, 1.2mm, 1.5mm, 1.8mm, 2.1mm) variations were printed (MAX, Asiga, Australia) using printable experimental flexible material (Code: BM2008, GC, Tokyo, Japan). The springs were evaluated mechanically using a universal testing machine (Zwick/Roell, Z010, Ulm, Germany) and statically analyzed (p<0.05).
Results: For all investigated groups significant differences were observed for material diameter comparing compression to force ratio. The diameter directly affects the mechanical properties for printable orthodontic resins.
Conclusions: For all investigated groups significant differences were observed for material diameter comparing compression to force ratio. The diameter directly affects the mechanical properties for printable orthodontic resins.