Dental blank comprising a pre-sintered porous zirconia material, process of its production and dental article formed from said dental blank

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United States of America Patent

PATENT NO 9592105
APP PUB NO 20150238291A1
SERIAL NO

14418973

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Abstract

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The invention relates to a dental mill blank comprising a pre-sintered porous zirconia material, the porous pre-sintered zirconia material showing a N2 adsorption of isotherm type IV according to IUPAC classification, the porous pre-sintered zirconia material having a Vickers hardness from about 25 to about 150, the dental mill blank comprising means for reversible attaching it to a machining device. The invention also relates to a process of producing a zirconia dental article comprising the steps of providing a dental mill blank comprising a porous pre-sintered zirconia material, placing the dental mill blank in a machining device, machining the porous zirconia material and to a dental article obtained by such a process.

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Patent Owner(s)

Patent OwnerAddress
SOLVENTUM INTELLECTUAL PROPERTIES COMPANY3M CENTER 275-6E-21 2510 CONWAY AVE E MAPLEWOOD MN 55144

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hauptmann, Holger Sindelsdorf, DE 46 543
Herrmann, Andreas München, DE 209 851
Kolb, Brant U Afton, US 118 4112
Schechner, Gallus Herrsching, DE 46 408
Schmittner, Sybille Buch, DE 2 32

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