Abstract: A device for repositioning a patient's teeth includes a shell having a shape corresponding to the patient's teeth and including an inner surface, where the inner surface is configured to engage with the patient's teeth. The device also includes at least one region of the inner surface having a higher frictional coefficient than a remaining portion of the inner surface, and where the at least one region is configured to apply a force to at least one tooth of the patient's teeth, wherein the at least one region comprises a local variation in geometry relative to a remainder of the inner surface.

Abstract: Systems and methods for fabricating a dental aligner are provided. The system includes a computing system to receive and prepare a digital model of a dental aligner by adding one or more support structures to the digital model. The system includes a fabrication system to manufacture the dental aligner with the one or more support structures. The system includes a laser system to receive the fabricated dental aligner, orient the dental aligner relative to the laser system, and laser cut an interface between the support structures and the dental aligner to remove the one or more support structures from the dental aligner.

Abstract: Systems and methods for fabricating a dental aligner are provided. The system includes a computing system to receive and prepare a digital model of a dental aligner by adding one or more support structures to the digital model. The system includes a fabrication system to manufacture the dental aligner with the one or more support structures. The system includes a laser system to receive the fabricated dental aligner, orient the dental aligner relative to the laser system, and laser cut an interface between the support structures and the dental aligner to remove the one or more support structures from the dental aligner.