US 12,433,716 B2
Aligner stage analysis to obtain mechanical interactions of aligners and teeth for treatment planning
Iman Shojaei, San Jose, CA (US); and Reza Shirazi Aghjari, San Jose, CA (US)
Assigned to ALIGN TECHNOLOGY, INC., San Jose, CA (US)
Filed by Align Technology, Inc., San Jose, CA (US)
Filed on Mar. 11, 2024, as Appl. No. 18/601,796.
Application 18/601,796 is a continuation of application No. 18/108,486, filed on Feb. 10, 2023, granted, now 11,957,533.
Application 18/108,486 is a continuation of application No. 17/139,222, filed on Dec. 31, 2020, granted, now 11,622,836, issued on Apr. 11, 2023.
Claims priority of provisional application 62/956,006, filed on Dec. 31, 2019.
Prior Publication US 2025/0017692 A1, Jan. 16, 2025
Int. Cl. G06T 19/00 (2011.01); A61C 7/00 (2006.01); A61C 7/08 (2006.01); G16H 20/40 (2018.01); G16H 50/50 (2018.01)
CPC A61C 7/002 (2013.01) [A61C 7/08 (2013.01); G06T 19/00 (2013.01); G16H 20/40 (2018.01); G16H 50/50 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A method of evaluating an orthodontic treatment plan, the method comprising:
generating an orthodontic treatment plan comprising a first stage and a second stage;
generating a 3D model of the patient's teeth at the first stage;
generating a 3D model of an orthodontic appliance at the second stage;
receiving input comprising a stiffness matrix of the patient's teeth and a stiffness matrix of the orthodontic appliance;
modeling mechanical interactions of the orthodontic appliance at the second stage with the patient's teeth at the first stage based at least in part on the stiffness matrix of the patient's teeth applied to the 3D model of the patient's teeth and the stiffness matrix of the orthodontic appliance applied to the 3D model of the orthodontic appliance; and
modifying the orthodontic treatment plan based on the modeled mechanical interactions.