Patent ID: 9572637
Date: 2017-02-21
CPC Classifications: A61B,A61C,B33Y

Claim:
1. A non-transitory computer readable medium having computer executable instructions thereon, wherein the instructions perform a method of aligning a target tooth in multiple stages based on a current arrangement of teeth of a patient, the method comprising: receiving data on a current state of the teeth of the patient from a scanner that scans the current state of the teeth of the patient, generating a state of the teeth of the patient and the vicinity of the teeth as 3D data, based on the data received from the scanner, setting a central point for dental movement in the 3D data, setting each central reference for a crown, a buccal surface, and a lingual surface of the tooth in the 3D data, and setting a reference for a dental root point in the 3D data, and wherein setting the central point for dental movement comprises recognizing a tooth, an alveolar bone that encloses the tooth, and a gingiva that encloses the alveolar bone, and wherein the central point for dental movement is set with respect to a single-rooted tooth with one root to be positioned at a distance of 40% to 42% of the root of the tooth enclosed by an alveolar bone downward from the top of the alveolar bone, and the central point for dental movement of which is set with respect to a multi-rooted tooth to be positioned at a distance of between 1 and 2 mm downward from the furcation from which the root of the tooth bifurcates.