BLANK FOR DENTAL CUTTING AND METHOD FOR PRODUCING SAME

Title:

BLANK FOR DENTAL CUTTING AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2020/235418

Kind Code:

A1

Abstract:

Provided are a blank for dental cutting having a part to be cut made from a resin material, wherein the resin material includes a composite material in which inorganic particles are dispersed in a resin matrix, the inorganic particles are made from aggregates of inorganic spherical particles having a specific average primary particle diameter, have a narrow particle size distribution, and include one or a plurality of spherical particle groups of the same particle diameter (G-PID) having a refractive index smaller than that of the resin matrix and an ultrafine particle group (G-SFP), and the arrangement structure of all of the inorganic spherical particles constituting the spherical particle groups of the same particle diameter in the resin matrix has a short-range ordered structure that fulfills specific conditions, and a method for producing the same.

Inventors:

MATSUO TAKUMA (JP)
SOSHI ANNA (JP)
NAGASAWA YUUKOU (JP)
AKIZUMI HIRONOBU (JP)

Application Number:

PCT/JP2020/019102

Publication Date:

November 26, 2020

Filing Date:

May 13, 2020

Export Citation:

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Assignee:

TOKUYAMA DENTAL CORP (JP)

International Classes:

A61K6/884; A61C5/77; A61C13/087; A61K6/16; A61K6/17; A61K6/831; A61K6/84

Domestic Patent References:

WO2018194031A1	2018-10-25
WO2018194032A1	2018-10-25
WO2017069274A1	2017-04-27
WO2012042911A1	2012-04-05
WO2020050123A1	2020-03-12
WO2019189698A1	2019-10-03
WO2017069274A1	2017-04-27
WO2011115007A1	2011-09-22
WO2013039169A1	2013-03-21

Foreign References:

JP2012153640A	2012-08-16
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Other References: