Direct Manufacture of Orthodontic Aligner Appliance
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United States of America Patent
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Issued Date -
Apr 18, 2013
app pub date -
Oct 12, 2012
filing date -
Oct 12, 2011
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Abandoned
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Abstract
A method for direct fabrication of an orthodontic device having tooth-fitting cavities, such as an aligner, using layer-by-layer printing of a single or multiple polymeric materials. The cavities of the appliance are defined by the boundaries of the multiple layers, encapsulating up to fourteen teeth of a patient, and shaped to apply a load to at least one tooth that is sufficient to cause movement of the tooth, and remodeling of the adjacent bone. A series of such appliances may be used to treat malocclusion of teeth, each directly manufactured appliance used in series to incrementally move one or more teeth from initial positions toward a desired final position. The appliance may be fabricated with a variety of disclosed materials, and may include auxiliary features for interaction with other orthodontic elements.
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