Patent ID: 9610140
Date: 2017-04-04
CPC Classifications: A61C

Claim:
1. A method of fabricating an orthodontic aligner tray comprising: segmenting teeth represented by an original digital model of a patient's teeth; repositioning at least one of the teeth represented by the original digital model from an original position to a final position to create a final digital model of the patient's teeth, the final digital model representing a final teeth position to be achieved by an orthodontic treatment plan; superimposing the final digital model onto the original digital model to create an overlay model; fabricating a plurality of identical aligner trays based on the overlay model, each tray having a tooth-receiving compartment such that the original position, final position, and a movement pathway from the original position to the final position are within the tooth-receiving compartment of the aligner and forming the plurality of identical aligner trays as passive aligner trays; identifying a position for a first force appliance in a first aligner tray; identifying a position for a second force appliance in a second aligner tray; and inserting the first and second force appliances into their corresponding aligner trays, the first and second force appliances positioned within the tooth-receiving compartment of its corresponding aligner tray to exert a selected force upon a tooth to be repositioned.