US Patent 10945812 Systems and methods for planning an orthodontic treatment

Methods and systems for determining an orthodontic treatment for a subject are provided. The methods comprises: acquiring a 3D representation of an arch form associated with the subject; segmenting, in the 3D representation of the arch form, associated representations of the plurality of teeth and the gingiva to generate a plurality of segmentation loops; generating, based on the plurality of segmentation loops, a primary central curve; generating, based on the primary central curve, a first inner mesh curve and a first outer mesh curve, the first inner mesh curve; generating a first segment of the reconstructed 3D representation of the gingiva by joining each one from the plurality of primary midpoints with respective ones from the first plurality of inner midpoints and from the first plurality of outer midpoints; and causing display of the first segment of the reconstructed 3D representation of the gingiva for determining the orthodontic treatment.