Patent ID: 9138299
Filing Date: 2015-09-22
Classification: A61B,A61C,G06T,G16B,G16H

Abstract:
1. A computer based method for defining and representing a shape and geometry of an occlusal access cavity to the tooth roots prior to endodontic treatment, the method comprising: loading onto the computer, information of the geometry of a tooth obtained via one or more imaging techniques, creation of a three-dimensional computer model of the tooth, including tooth's internal architecture, visualisation of the computer model, visualisation of the location(s) of the entrance(s) to root canal(s) relative to the tooth's occlusal surface, based on the locations of the root canal orifices a shape of the access cavity is calculated by use of a calculating means, based on the calculated shape of the access cavity, an outline is calculated on the occlusal surface of the tooth indicating the surface boundaries of the access cavity on the occlusal side of the tooth, and visualizing the outline on a display device.