Patent attributes
A method and electronic device for determining a T-marking of a given tooth of a subject are provided. The method comprises: obtaining a 3D digital model representative of a surface of a plurality of subject's teeth including the given tooth; obtaining a reference plane extending along an occlusal surface of the given tooth; generating groupings of the mesh elements along a surface of the given tooth; identifying normals at vertices defining each grouping, and projecting the normals onto the reference plane; determining a labiolingual line of the T-marking as a line of best fit of ends of the projected normals with starts in plane origin; determining, a mesiodistal line of the T-marking as a line extending in the reference plane through the reference plane origin and perpendicular to the labiolingual line; and determining the T-marking of the given tooth as the labiolingual line intersecting the mesiodistal line.
