US 12,357,432 B2
Method for generating 3D digital model of teeth
Ketuo Zhou, Shanghai (CN); and Lei Huang, Shanghai (CN)
Assigned to Wuxi EA Biotechnology Limited, Jiangsu (CN)
Appl. No. 17/799,039
Filed by WUXI EA BIOTECHNOLOGY LIMITED, Jiangsu (CN)
PCT Filed Jan. 25, 2021, PCT No. PCT/CN2021/073622
§ 371(c)(1), (2) Date Aug. 11, 2022,
PCT Pub. No. WO2021/179811, PCT Pub. Date Sep. 16, 2021.
Claims priority of application No. 202010174621.7 (CN), filed on Mar. 13, 2020.
Prior Publication US 2023/0072374 A1, Mar. 9, 2023
Int. Cl. G06T 7/70 (2017.01); A61C 9/00 (2006.01); A61C 13/34 (2006.01); A61C 19/04 (2006.01); G06T 17/00 (2006.01); G06T 19/20 (2011.01)
CPC A61C 9/0053 (2013.01) [A61C 13/34 (2013.01); A61C 19/04 (2013.01); G06T 7/70 (2017.01); G06T 17/00 (2013.01); G06T 19/20 (2013.01); G06T 2200/08 (2013.01); G06T 2207/30201 (2013.01); G06T 2207/30204 (2013.01); G06T 2210/41 (2013.01); G06T 2219/2004 (2013.01); G06T 2219/2021 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A computer-implemented method for producing 3D digital model of teeth, comprising:
obtaining a first 3D digital model of a patient's teeth with a first feeler gauge inserted in a first gap between two adjacent teeth;
extracting a position and a direction of the first feeler gauge from the first 3D digital model; and
modifying the first gap of an original 3D digital model of teeth based on the specification, position and direction of the first feeler gauge, to obtain a refined 3D digital model of teeth.