Patent ID: 7404714

Claim:
A method of orthodontic indirect bonding comprising: making a replica of a patient's tooth structure; placing one or more orthodontic appliances on the replica to make an orthodontic treatment model; applying a quantity of matrix material to either the tray or to the model; forming a tray in matching conformance with at least part of the patient's tooth structure; positioning the tray over the model such that the matrix material is received between the tray and the model; allowing the matrix material to harden while the matrix material is received between the tray and the model, wherein the tray has a Shore A hardness that is greater than the Shore A hardness of the matrix material; detaching the tray from the matrix material; and subsequently applying the matrix material to one of the patient's dental arches in order to position at least one orthodontic appliance on the patient's tooth structure.