DENTAL PRODUCT WITH ENHANCED TOUGHNESS - KURARAY NORITAKE DENTAL INC

Title:

DENTAL PRODUCT WITH ENHANCED TOUGHNESS

Document Type and Number:

WIPO Patent Application WO/2019/093334

Kind Code:

A1

Abstract:

Provided are a dental product comprising a base material formed of a zirconia sintered body, said dental product having enhanced fracture toughness while maintaining high aesthetic properties and being resistant to chipping and cracking in a porcelain layer, and a method for manufacturing the same. The present invention pertains to a dental product comprising a base material formed of a zirconia sintered body and a porcelain layer, wherein the adequate firing temperature of the porcelain is 900°C or higher and the fracture toughness value of the porcelain layer is 1.20 MPa·m0.5 or greater.

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Inventors:

TAJIMA YUTA (JP)
SAKAKIBARA TOSHIO (JP)
BAN KIYOKO (JP)

Application Number:

PCT/JP2018/041204

Publication Date:

May 16, 2019

Filing Date:

November 06, 2018

Export Citation:

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Assignee:

KURARAY NORITAKE DENTAL INC (JP)

International Classes:

A61K6/027; A61C5/77; A61C13/00; A61K6/04; A61L27/04; A61L27/06; A61L27/10; C04B35/486; C04B41/87

Domestic Patent References:

WO2014034736A1	2014-03-06
WO2014034736A1	2014-03-06

Foreign References:

JPH10323354A	1998-12-08
JP2017122064A	2017-07-13
JP2018100229A	2018-06-28
JP2017122064A	2017-07-13

Other References: