Abstract: A method includes receiving, by a computing system, a plurality of digital models corresponding to a plurality of dental aligners each configured to move one or more teeth based on one or more treatment plans; analyzing, by the computing system, a geometric characteristic of the plurality of digital models; preparing, by the computing system, the plurality of digital models for manufacturing the plurality of dental aligners by adding one or more support structures to at least one digital model of the plurality of digital models based on the analysis; forming, via additive manufacturing, the plurality of dental aligners including at least one dental aligner with the one or more support structures; receiving, by a laser system, the at least one dental aligner; and cutting, by the laser system, the one or more support structures from the at least one dental aligner.

Abstract: A method may include generating a 2D blank that can form a 3D dental aligner via thermoforming. The 2D blank may include a first material that includes a first discontinuity. The 2D blank may include a second material integrally formed within the first discontinuity. The first material may have a higher stiffness than the second material. The method may include thermoforming the 2D blank to form the 3D dental aligner having variable stiffness.

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.

Abstract: Air freshener products and methods for freshening air are disclosed. In some embodiments, the air freshening product may include a container for storing an air freshening composition that may contain compressed gas such as compressed air, nitrogen, nitrous oxide, inert gases, or carbon dioxide. When the container is completely filled with propellant and air freshening composition, the air freshening composition may be released from the container at a flow rate of from about 0.0001 grams/second to about 1.2 grams/second. The method of freshening air, in certain embodiments, provides improved delivery of an air freshening composition using a non-hydrocarbon propellant. If malodor counteractants are used, the method may also provide a reduction in malodors.