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Method to manufacture a colored blank, and blank
专利权人:
DENTSPLY SIRONA Inc.
发明人:
Lothar Volkl,Stefan Fecher,Martin Kutzner,Tanja Oefner
申请号:
US15464316
公开号:
US10441391B2
申请日:
2017.03.20
申请国别(地区):
US
年份:
2019
代理人:
摘要:
The invention relates to a method for manufacturing a colored blank, which contains zirconium dioxide and is intended for the manufacture of a dental restoration, whereby raw materials in powder form, at least some of which contain one coloring substance each, are mixed with, zirconium dioxide as the main ingredient, the resulting mixture is pressed and subsequently subjected to at least one thermal treatment. To generate the desired fluorescence, it is intended that in the raw materials in powder form one uses as coloring substances at least terbium, erbium, cobalt, as well as one substance that generates a fluorescence effect in the dental restoration, however not iron, aside from naturally occurring impurities.
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