The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2019
Filed:
Nov. 26, 2012
3shape A/s, Copenhagen K, DK;
Rune Fisker, Virum, DK;
Nikolaj Deichmann, Klagshamn, SE;
3Shape A/S, Copenhagen K, DK;
Abstract
A method for generating a dental preparation guide configured for validating the preparation of at least one tooth for a dental restoration. A tooth is virtually removed from a digital 3D representation of the patient's pre-prepared set of teeth to form a digital 3D representation of a remaining set of teeth. A virtual target dental restoration expressing a target shape of the dental restoration is obtained and a virtual validation surface for the dental preparation guide is created based on the virtual target dental restoration, where the validation surface is such that the preparation of the tooth can be validated by the dental preparation guide. A virtual preparation guide surface is created by combining the virtual validation surface and part of the surface of the digital 3D representation of the remaining set of teeth.