US 11,937,994 B2
Method for generating a digital data set representing a target tooth arrangement
Jin Hao, Chengdu (CN)
Assigned to NINGBO SHENLAI MEDICAL TECHNOLOGY CO., LTD., Ningbo (CN)
Filed by NINGBO SHENLAI MEDICAL TECHNOLOGY CO., LTD., Ningbo (CN)
Filed on Sep. 13, 2021, as Appl. No. 17/474,045.
Prior Publication US 2023/0083119 A1, Mar. 16, 2023
Int. Cl. A61C 9/00 (2006.01); A61C 7/00 (2006.01); A61C 13/34 (2006.01); A61C 19/05 (2006.01)
CPC A61C 9/004 (2013.01) [A61C 7/002 (2013.01); A61C 13/34 (2013.01); A61C 19/05 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A computer-implemented method for generating a digital data set representing a target tooth arrangement, comprising:
obtaining a first 3D digital model representing an initial tooth arrangement including an initial relative positional relationship between a plurality of teeth of a patient;
extracting at least one feature from each tooth of the first 3D digital model;
generating a feature vector based on the extracted features; and
aligning the first 3D digital model using a Statistical Shape Model based on the feature vector to obtain a second 3D digital model representing a target tooth arrangement including a target relative positional relationship between the plurality of teeth, wherein the target relative positional relationship between the plurality of teeth is different from the initial relative positional relationship between the plurality of teeth by adjustments in spatial relationships of individual teeth, and wherein the target tooth arrangement is to be achieved by an orthodontic treatment.