Invention Grant
- Patent Title: Process of making a dental blank
- Patent Title (中): 制作牙科毛坯的过程
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Application No.: US13620485Application Date: 2012-09-14
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Publication No.: US09119696B2Publication Date: 2015-09-01
- Inventor: Russell A. Giordano
- Applicant: Russell A. Giordano
- Agency: Christie, Parker & Hale, LLP
- Main IPC: B29C35/08
- IPC: B29C35/08 ; B29C41/02 ; A61C13/34 ; B29C67/00 ; A61C13/00

Abstract:
A dental blank has at least an inner zone (or layer) of a first color and an outer zone (or layer) of a second color, wherein the inner and outer zones are concentric. The inner zone can be surrounded in its entirety by the outer zone such that only the outer zone is visible on all surfaces of the blank. Alternatively, the inner zone and the outer zone can extend to a same single surface of the blank, such that only the outer zone covers all remaining surfaces. The blank may also have an intermediate zone between the inner and outer zones. A method of fabrication includes solid free form processes, such as robocasting, laser sintering and 3D printing that allow for placement of multiple colors. A dental restoration made from the blank can have a variety of shades depending on a ratio of milled outer layers to internal layers.
Public/Granted literature
- US20130069264A1 MULTICOLOR DENTAL BLANKS AND RELATED METHODS Public/Granted day:2013-03-21
Information query
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