US 12,109,089 B2
Individualized orthodontic treatment index
Eric E. Kuo, San Jose, CA (US); Vadim Matov, San Jose, CA (US); Larry Lai, San Jose, CA (US); Fuming Wu, Pleasanton, CA (US); and Jihua Cheng, San Jose, CA (US)
Assigned to Align Technology, Inc., San Jose, CA (US)
Filed by Align Technology, Inc., San Jose, CA (US)
Filed on Feb. 13, 2023, as Appl. No. 18/168,558.
Application 18/168,558 is a continuation of application No. 14/967,598, filed on Dec. 14, 2015, granted, now 11,612,454.
Application 14/967,598 is a continuation of application No. 12/771,472, filed on Apr. 30, 2010, granted, now 9,211,166, issued on Dec. 15, 2015.
Prior Publication US 2023/0293265 A1, Sep. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61C 7/00 (2006.01); A61B 5/00 (2006.01); A61B 5/11 (2006.01); G06F 3/041 (2006.01); G06F 30/20 (2020.01); G16C 20/70 (2019.01); G16H 50/50 (2018.01); G16H 20/40 (2018.01); G16H 30/40 (2018.01)
CPC A61C 7/002 (2013.01) [A61B 5/1128 (2013.01); A61B 5/7246 (2013.01); A61C 7/00 (2013.01); G06F 3/041 (2013.01); G06F 30/20 (2020.01); G16C 20/70 (2019.02); G16H 50/50 (2018.01); G06T 2210/12 (2013.01); G16H 20/40 (2018.01); G16H 30/40 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A system for orthodontic treatment planning, the system comprising:
one or more computing devices configured to evaluate implementation of an orthodontic treatment plan, wherein the one or more computing devices includes memory having executable instructions stored thereon that, when executed by one or more processors, cause the one or more computing devices to perform a method comprising:
generating a target dental model by modifying an initial dental model, wherein the initial dental model represents a patient's dentition at an initial stage of the orthodontic treatment plan, and the target dental model represents a target outcome for the patient's dentition;
graphically marking dental references on the target dental model based on a user's input to a graphical user interface, wherein graphically marking the dental references comprises assigning contact points between adjacent first and second teeth of the target dental model;
generating a treatment outcome dental model representing the patient's dentition after at least a portion of the orthodontic treatment has been completed, wherein the adjacent first and second teeth overlap in the treatment outcome dental model;
mapping the dental references marked on the target dental model to the treatment outcome dental model by:
calculating and applying a translation to minimally separate the first and second teeth from each other in the treatment outcome dental model; and
calculating contact points between the first and second teeth in the treatment outcome dental model using collision detection between the first and second teeth; and
calculating an individualized treatment index score for the treatment outcome dental model according to differences between the contact points of the target dental model and the contact points of the treatment outcome dental model.