Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dental Mill Blank, Process for Production and Use Thereof
The invention relates to a coloured zirconia ceramic dental mill blank having fluorescing properties, processes of production such a mill blank and uses thereof, in particular for producing zirconia ceramic dental restorations.The dental mill blank having a shape allowing the dental mill blank to be attached or fixed to a machining device, the dental mill blank comprising a porous zirconia material, the porous zirconia material comprising the oxides Zr oxide calculated as ZrO2: from about 80 to about 97 wt.-%, Al oxide calculated as Al2O3: from about 0 to about 0.15 wt.-%, Y oxide calculated as Y2O3: from about 1 to about 10 wt.-%, Bi oxide calculated as Bi2O3: from about 0.01 to about 0.20 wt.-%, Tb oxide calculated as Tb2O3: from about 0.01 to about 0.8 wt.-%, and optionally one or two of the following oxides: Er oxide calculated as Er2O3: from about 0.01 to about 3.0 wt.-%, Mn oxide calculated as MnO2: from about 0.0001 to about 0.08 wt.-%, wt.-% with respect to the weight of the porous zirconia material.
Dental Mill Blank, Process for Production and Use Thereof
The invention relates to a coloured zirconia ceramic dental mill blank having fluorescing properties, processes of production such a mill blank and uses thereof, in particular for producing zirconia ceramic dental restorations.The dental mill blank having a shape allowing the dental mill blank to be attached or fixed to a machining device, the dental mill blank comprising a porous zirconia material, the porous zirconia material comprising the oxides Zr oxide calculated as ZrO2: from about 80 to about 97 wt.-%, Al oxide calculated as Al2O3: from about 0 to about 0.15 wt.-%, Y oxide calculated as Y2O3: from about 1 to about 10 wt.-%, Bi oxide calculated as Bi2O3: from about 0.01 to about 0.20 wt.-%, Tb oxide calculated as Tb2O3: from about 0.01 to about 0.8 wt.-%, and optionally one or two of the following oxides: Er oxide calculated as Er2O3: from about 0.01 to about 3.0 wt.-%, Mn oxide calculated as MnO2: from about 0.0001 to about 0.08 wt.-%, wt.-% with respect to the weight of the porous zirconia material.
Dental Mill Blank, Process for Production and Use Thereof
JAHNS MICHAEL (Autor:in) / SCHNAGL HANS R (Autor:in)
21.07.2022
Patent
Elektronische Ressource
Englisch
DENTAL MILL BLANK, PROCESS FOR PRODUCTION AND USE THEREOF
| Europäisches Patentamt | 2017
DENTAL MILL BLANK, PROCESS FOR PRODUCTION AND USE THEREOF
| Europäisches Patentamt | 2017
Multi-layered zirconia dental mill blank and process of production
| Europäisches Patentamt | 2021
METHOD FOR PRODUCING MILL BLANK FOR DENTAL PROCESS, AND METHOD FOR PRODUCING DENTAL PROSTHESIS
| Europäisches Patentamt | 2021