07-01-2021 дата публикации
Номер: US20210004505A1
A digital data set representing a pre-scanned tooth geometry, including generic crown data, is merged with data representing a scanned patient tooth crown image, which lacks sufficient data to completely represent a complete tooth crown. 1. A system for modeling a complete patient tooth to facilitate orthodontic treatment of a patient , the system comprising:a scanner operable to capture a scanned image of at least a portion of a surface of a first crown component of a first patient tooth, and to generate scanned image data representing only a partial portion of the surface of the first crown component;memory configured to store a library of digital tooth templates; and receiving the scanned image data from the scanner;', 'creating a digital data set representing the scanned image data;', 'creating a first digital landmark pattern for the digital data set representing the scanned image data;', 'creating, in the stored library of digital tooth templates, an image of a tooth that is a contralateral tooth to the first patient tooth;', 'using the digital data set representing the scanned image data, select, from the library of digital tooth templates, a digital tooth template that includes a digital crown portion corresponding to the scanned image data;', 'creating a second digital landmark pattern for the digital crown portion of the selected digital tooth template, the second digital landmark pattern being derived from an image of a second tooth, wherein the image of the second tooth comprises a digitally-mirrored model of the contralateral tooth to the first patient tooth;', 'using the first and second digital landmark patterns to calculate an initial morphing function;', 'using the initial morphing function to determine a morphed central axis;', 'repositioning a central axis of the digital crown portion of the selected digital tooth template so as to be tangential to the morphed central axis;', 'scaling the repositioned central axis of the digital crown portion of ...
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