US 12,127,906 B2
Nonlinear tooth modeling for orthodontic treatment
Vadim Matov, San Jose, CA (US); Sergei Brodsky, San Jose, CA (US); Bastien Pesenti, San Jose, CA (US); Yuri Syrov, San Jose, CA (US); Ping Tang, Milpitas, CA (US); Manlio Fabio Valdivieso Casique, Santa Clara, CA (US); Olga Matusevich, Moscow (RU); and Igor Kvasov, Los Altos, CA (US)
Assigned to ALIGN TECHNOLOGY, INC., San Jose, CA (US)
Filed by Align Technology, Inc., San Jose, CA (US)
Filed on Aug. 17, 2023, as Appl. No. 18/451,641.
Application 18/451,641 is a continuation of application No. 17/949,113, filed on Sep. 20, 2022, granted, now 11,771,526.
Application 17/949,113 is a continuation of application No. 16/730,865, filed on Dec. 30, 2019, granted, now 11,478,334, issued on Oct. 25, 2022.
Claims priority of provisional application 62/788,025, filed on Jan. 3, 2019.
Prior Publication US 2024/0081950 A1, Mar. 14, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61C 7/00 (2006.01); A61C 7/08 (2006.01); G06T 17/20 (2006.01); G16H 20/00 (2018.01)
CPC A61C 7/002 (2013.01) [A61C 7/08 (2013.01); G06T 17/20 (2013.01); G16H 20/00 (2018.01); G06T 2207/30036 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A computer-implemented method for digital treatment planning, the computer-implemented method comprising:
defining a set of contact points on a tooth of a patient's dentition;
defining a plurality of connections between pairs of the plurality of contact points, wherein the plurality of connections comprises a Hookian stiffness parameter of a dental appliance between the plurality of contact points;
generating a relaxed model of a dental appliance using the plurality of contact points and the plurality of connections, wherein the relaxed model represents physical properties of the dental appliance prior to use by the patient;
generating a deformed model of the dental appliance using the plurality of contact points and plurality of connections, wherein the deformed model of the dental appliance represents physical properties of the dental appliance after use by the patient; and
transforming the relaxed model to the deformed model to direct the patient dentition towards a target tooth arrangement.