CPC A61C 7/002 (2013.01) [A61C 7/08 (2013.01); G06F 30/00 (2020.01); A61C 2007/004 (2013.01)] | 20 Claims |
1. A method of determining a cut line of an aligner, the method being executable by a processor of a computer system, the method comprising:
obtaining, by the processor, 3D model data of a subject's arch form, the subject's arch form including a plurality of teeth and a gingiva of a subject;
obtaining, by the processor, using the 3D model data, for each one of the plurality of teeth, a respective one of a plurality of individual segmentation loops,
a given one of the plurality of individual segmentation loops being indicative of a boundary between a respective tooth of the plurality of teeth and the gingiva;
translating each one of the plurality of individual segmentation loops along the respective tooth at a predetermined distance from the gingiva to generate a plurality of offset individual segmentation loops;
identifying, by the processor, within each one of the plurality of offset individual segmentation loops a respective buccal portion and a respective lingual portion;
sequentially joining, by the processor, respective buccal portions and respective lingual portions associated with each one of the plurality of offset individual segmentation loops, thereby generating a single arch form loop; and
determining, by the processor, the cut line as the single arch form loop, the cut line to be used for producing the aligner.
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