Patent Document ID: 7878804
Application ID: 11712074
Patent Status: 1

Claim One:
1. A method for tracking teeth movement correction, the method comprising: creating a virtual teeth model corresponding to a number of physical teeth using a computing device; positioning a number of physical markers on at least one of the number of physical teeth; positioning a number of virtual markers on at least one of a number of virtual teeth of the virtual teeth model using the computing device, where the number of virtual markers are positioned on the at least one of the number of virtual teeth corresponding to the positioning of the number of physical markers on the at least one of the number of physical teeth; creating a virtual expected teeth arrangement model from the virtual teeth model including a number of successive stages of arrangements of the virtual teeth model and the virtual markers using the computing device; providing a set of positioning appliances shaped to move the number of physical teeth through the number of successive stages where each stage corresponds to a particular positioning appliance; detecting, at a particular stage, a position of the at least one of the number of physical markers based on an image taken of the at least one of the number of physical markers; comparing the position of the at least one of the number of physical markers with a position of the corresponding at least one of the number of virtual markers at the particular stage; and determining whether midcourse correction is needed.