Invention Grant
- Patent Title: Dental blank and method of making a dental ceramic blank
- Patent Title (中): 牙科毛坯和制作牙科陶瓷坯料的方法
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Application No.: US12682115Application Date: 2008-10-10
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Publication No.: US08425812B2Publication Date: 2013-04-23
- Inventor: Ingo W. Wagner , Martin Goetzinger , Thomas Sprengart
- Applicant: Ingo W. Wagner , Martin Goetzinger , Thomas Sprengart
- Applicant Address: US MN Saint Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN Saint Paul
- Agency: 3M Innovative Properties Company
- Agent Carlos M. Téllez
- Priority: GB0719824.5 20071011
- International Application: PCT/US2008/079479 WO 20081010
- International Announcement: WO2009/049127 WO 20090416
- Main IPC: A61C13/20
- IPC: A61C13/20

Abstract:
A method of making a dental blank comprises the steps of independently compacting a first and second zone of a quantity of ceramic particles. During compacting, the first and second zones have different compaction factors in at least one stage. Such blanks may be pre-sintered and used in the manufacture of dental restorations. The method may help in controlling the homogeneity of the material structure during manufacturing the blanks.
Public/Granted literature
- US20100209876A1 DENTAL BLANK AND METHOD OF MAKING A DENTAL CERAMIC BLANK Public/Granted day:2010-08-19
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