Title:
DENTAL CURABLE COMPOSITION, BLANK FOR DENTAL-CUTTING WORK, PRODUCTION METHOD FOR SILICA-BASED COMPOSITE OXIDE POWDER BODY, AND DENTAL FILLER
Document Type and Number:
WIPO Patent Application WO/2024/070260
Kind Code:
A1
Abstract:
[Problem] To provide a blank that is for dental-cutting work and that has a portion to be subjected to cutting work and comprising a hybrid resin that contains spherical particles of a silica-based composite oxide, and that has a color appearance less likely to change depending on the thickness. [Solution] The present invention uses, as a portion to be subjected to cutting work, a cured body of a dental curable composition that contains, with respect to 100 parts by mass of a radical polymerizable monomer, 100-800 parts by mass of a silica-based composite oxide powder body that has an average primary particle size of 350-600 nm, that is formed of spherical particles, of a silica-based composite oxide, having a silica content of 80-92 mol% and not including silica cores, and that is obtained through control of, when depositing the silica-based composite oxide powder body by adding a basic solution to a raw material solution in which a condensable compound such as tetraethyl silicate or tetra(n-butoxy)zirconate is dissolved, solvent compositions of the respective solutions.
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Inventors:
OYA NAOYUKI (JP)
MORISAKI HIROSHI (JP)
MORISAKI HIROSHI (JP)
Application Number:
PCT/JP2023/029044
Publication Date:
April 04, 2024
Filing Date:
August 09, 2023
Export Citation:
Assignee:
TOKUYAMA DENTAL CORP (JP)
International Classes:
A61K6/849; A61C5/60; A61C13/00; A61C13/15; A61K6/878; A61K6/887; C01B33/18
Foreign References:
| JPS58110414A | 1983-07-01 | |||
| JPH0138044B2 | 1989-08-10 | |||
| JP2012153640A | 2012-08-16 | |||
| JPS6286003A | 1987-04-20 | |||
| JPH0812305A | 1996-01-16 |
Attorney, Agent or Firm:
MINAMI AOYAMA PATENT AND TRADEMARK ATTORNEYS (JP)
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