Patent ID: 8974229
Filing Date: 2015-03-10
Classification: A61C,G16H

Abstract:
1. A method of virtually designing a post and core restoration adapted for attachment in a damaged tooth of a patient, where the damaged tooth includes a bore for receiving the post of the post and core, wherein the method comprises: obtaining a 3D image on a computer, wherein the 3D image comprises a first 3D scan of at least a part of the damaged tooth, where a scan pin comprising an outer part and an inner part is arranged in the bore of the damaged tooth during the imaging of the first 3D scan, such that the outer part of the scan pin is located at least partly outside the bore of the tooth, and the inner part of the scan pin is located at least partly in the bore of the tooth, where the inner part of the scan pin corresponds to the post of the post and core, and where the first 3D scan comprises at least a part of the tooth and the scan pin; providing a digital 3D shape of the scan pin on a computer, wherein the digital 3D shape of the scan pin includes the outer part and the inner part of the scan pin; matching the first 3D scan with the digital 3D shape of the scan pin using a computer, where the matching comprises matching the at least part of the scan pin of the first 3D scan with the at least part of the scan pin of the digital 3D shape, such that the inner part of the scan pin of the digital 3D shape is represented relative to the tooth of the first 3D scan; and designing the post and core restoration on a computer, where the designing is based on the representation of the inner part of the scan pin relative to the tooth in the first 3D scan.