- Patent Title: Production method for tooth replacement part and veneer structure
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Application No.: US15742546Application Date: 2016-07-06
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Publication No.: US11337781B2Publication Date: 2022-05-24
- Inventor: Paul Schnitzspan , Thorsten Jordan , Friedemann Roessler
- Applicant: SIRONA DENTAL SYSTEMS GMBH
- Applicant Address: DE Bensheim
- Assignee: SIRONA DENTAL SYSTEMS GMBH
- Current Assignee: SIRONA DENTAL SYSTEMS GMBH
- Current Assignee Address: DE Bensheim
- Agency: Dentsply Sirona Inc.
- Priority: DE102015212606.4 20150706
- International Application: PCT/EP2016/065898 WO 20160706
- International Announcement: WO2017/005762 WO 20170112
- Main IPC: A61C8/00
- IPC: A61C8/00 ; A61C5/70 ; A61C13/34 ; G16H20/40

Abstract:
A method for producing a tooth replacement part to be secured on an implant, based on a 3D model of the tooth replacement part with a surface and with a continuous screw channel with an initial shape in the form of a cylindrical barrel, with a first and a second end, wherein a cross sectional area of the screw channel is designed to be constant and/or to increase in size towards the second end of the screw channel. A 3D model of an inlay with a jacket surface, an upper face and a lower face is generated. A part of the surface of the 3D model of the tooth replacement part that is cut out through the second end of the final shape of the screw channel is used as the upper face and the jacket surface is configured as a negative form of a part of the final shape of the screw channel that adjoins the second end.
Public/Granted literature
- US20180200029A1 PRODUCTION METHOD FOR TOOTH REPLACEMENT PART AND VENEER STRUCTURE Public/Granted day:2018-07-19
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