Patent ID: 8674981
Filing Date: 2014-03-18
Classification: A61C

Abstract:
1. An apparatus for processing a digitized three-dimensional model of a dental prosthetic item in the preparation of said item using a virtual tool, comprising: a computer having a monitor for displaying a representation of the model; and an input device, for applying the virtual tool in a local zone of action of a surface of the model so as to change the height of said surface within the local zone of action, said local zone of action having an extent, and said local zone of action including said computer, responsive to a user moving the virtual tool over the selected region, changing the height of the surface of said local zone of action, the change in height being substantially constant over the modified region, and being non-constant over the outer transition region, and being substantially everywhere in a direction of a vector, wherein the vector is an average of normal vectors over the evaluation region, and the change in height not removing said structural feature located in the modified region.