Multi-coloured milling blank for implant-supported dental prosthetic restorations
US11273018B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2017 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Jun 25, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C8/006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Dental blank for the production of a dental prosthetic restoration, in particular of a multi-coloured dental prosthetic restoration, by processing removing the outer region of the blank, comprising (i) an inner connecting element having an preferably peg-shaped scaffold region in the direction of the coronal region of the dental blank and an implant connection geometry in the radicular direction of the dental blank, (ii) wherein the scaffold region of the connecting element is connected to a dentin scaffold region in the direction of the coronal region of the blank, and wherein (iii) the dentin scaffold region is connected to an (iv) outer region of the blank in the region of enamel in the direction of the coronal region of the blank, and wherein (v) the dental blank has an inner elongated lumen for fastening of the produced dental prosthetic restoration on an implant or abutment by means of a connecting screw or a bolt. Moreover, a subject matter of the invention is a system for the production of a dental blank as well as the method for the production of the blank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.