Patent ID: 9622835
Date: 2017-04-18
CPC Classifications: A61C,G06T,G16B,G16H

Claim:
1. A computer-implemented method of defining a tooth coordinate system for a virtual tooth comprising: presenting a dentition surface including the virtual tooth in a user interface of a digital display, the dentition surface representing at least a portion of the patient's dental structure; receiving point input data that defines a point on the virtual tooth; receiving axis input data that defines first and second axes associated with the virtual tooth; using the computer's processor, computing a substantially normal vector for a portion of the tooth surface surrounding the point; computing the tooth coordinate system based on the axis input and the computed vector; and receiving modification data for the virtual tooth, the modification data associated with the tooth coordinate system, the modification data including at least one of; and updating the user interface consistent with the modification data.