Patent ID: 11918438
Assignee: 3SHAPE A/S
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 13:
14. A system for determining gingival recession of a patient's anterior teeth, the system comprising
an electronic data processing unit and a non-transitory computer readable medium having stored thereon a computer program product comprising one or more instructions which when executed by the electronic data processing unit provide a digital tool configured for assisting a user in performing a method of:
obtaining two or more digital 3D representations for the anterior teeth recorded at different points in time;
segmenting the anterior teeth in each of the two or more digital 3D representations;
aligning the segmented anterior teeth in each of the two or more digital 3D representations on a tooth by tooth basis;
determining gingival margin lines between the segmented anterior teeth and gingiva in each of the two or more digital 3D representations;
comparing a distance between two or more of the gingival margin lines; and
quantifying the gingival recession based on the comparison.