Disclaimer for printing aligners

Direct printing of aligners requires detailed integration of aligners specifications and control of the overall workflow and process variables (software, aligner thickness, resin design, printer specifications such as power, wavelength, print settings: exposure time, z layer thickness, postcuring and cleansing settings and protocols, types of cleaning fluids used, cleaning time and temperature, light power, wavelength and temperature during postcuring, etc.

All the mentioned variables affect and determine final aligner mechanical properties, clarity and biocompatibility: such as  its hardness, rigidity, stress relaxation resistance during usage, color, overall resistance, durabibility and safety.

Different printers, printing settings and specifications, cleaning and postcuring settings, etc in practice provide differences in properties for any 3D photoreactive resins