Invention Grant
- Patent Title: Method for producing tooth parts from dental metal powder
- Patent Title (中): 从牙科金属粉末制造牙齿零件的方法
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Application No.: US13392191Application Date: 2010-07-30
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Publication No.: US08943693B2Publication Date: 2015-02-03
- Inventor: Stefan Wolz
- Applicant: Stefan Wolz
- Applicant Address: DE Bad Sobernheim
- Assignee: WDT-Wolz-Dental-Technik GmbH
- Current Assignee: WDT-Wolz-Dental-Technik GmbH
- Current Assignee Address: DE Bad Sobernheim
- Agency: Kremblas & Foster
- Agent Frank H. Foster
- Priority: DE102009039102 20090827
- International Application: PCT/EP2010/061119 WO 20100730
- International Announcement: WO2011/023490 WO 20110303
- Main IPC: B23P13/00
- IPC: B23P13/00 ; A61C13/00 ; B22F3/10 ; B22F3/22 ; C22C1/04 ; C22C19/07 ; B22F1/00

Abstract:
The invention relates to a method for producing tooth parts from dental-grade metal powder, wherein existing CAD/CAM milling machines can be used. The essential process steps consist of: a) preparing a slurry from dental-grade metal powder, b) casting the slurry into a mold, c) drawing out (drying) suspension liquid (water) until a mechanically stable blank is obtained, d) milling the blank into the desired shape, e) oxygen-free sintering of the tooth parts milled from the blank. Because the blank is still present as a green body, milling does not place great demands on the milling machine in terms of mechanical stability and dust development. As a result, the operating speed and the service lives of customary milling machines are substantially increased.
Public/Granted literature
- US20120174404A1 Method For Producing Tooth Parts From Dental Metal Powder Public/Granted day:2012-07-12
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