公开(公告)号：US10085923B2

公开(公告)日：2018-10-02

申请号：US14737763

申请日：2015-06-12

Applicant: SHOFU INC.

Inventor： Toshiyuki Nakatsuka ,  Toshio Kitamura ,  Masanori Goto ,  Tomohiro Kai ,  Satoshi Takano ,  Yoshiyuki Jogetsu

IPC: A61C13/09 ,  A61C13/087 ,  A61K6/083 ,  A61K6/00 ,  C08K9/02

Abstract: The present invention relates to a dental curable composition that can be suitably used as a dental material that can substitute part or all of a natural tooth, in particular, a resin material for dental cutting and machining in the field of dental care. An object of the present invention is to provide a dental curable composition in which, when a block shape usable as a resin material for dental cutting and machining is produced while mechanical properties such as hardness, bending strength and compressive strength as well as aesthetic property required for a crown prosthetic appliance are maintained, the dental curable composition can be molded and processed with pressure and heating while strain generated in the block is reduced and no cracks and chipping occur. There is provided a dental curable composition including (a) a polymerizable monomer and (b) a filler in a weight ratio of 10:90 to 70:30, and including 0.01 to 10 parts by weight of (c) a polymerization initiator and 0.001 to 1 part by weight of (d) a chain transfer agent being a terpenoid compound based on 100 parts by weight of the polymerizable monomer (a).

公开(公告)号：US11737957B2

公开(公告)日：2023-08-29

申请号：US16117044

申请日：2018-08-30

Applicant: SHOFU INC.

Inventor： Toshiyuki Nakatsuka ,  Toshio Kitamura ,  Masanori Goto ,  Tomohiro Kai ,  Satoshi Takano ,  Yoshiyuki Jogetsu

IPC: A61K6/00 ,  A61C13/087 ,  C08K9/02 ,  C08L33/04 ,  A61K6/887 ,  A61K6/60 ,  A61K6/76

CPC classification number: A61K6/887 ,  A61C13/087 ,  A61K6/60 ,  A61K6/76 ,  C08K9/02 ,  A61K6/887 ,  C08L33/04

Abstract: A dental curable composition capable of use as a dental material that can substitute part or all of a natural tooth, in particular, a resin material for dental cutting and machining in the field of dental care. When a block shape usable as the resin material is produced, while mechanical properties and aesthetic properties required for a crown prosthetic appliance are maintained, the dental curable composition can be molded and processed with pressure and heating while strain generated in the block is reduced and no cracks and chipping occur. The dental curable composition includes (a) a polymerizable monomer and (b) a filler in a weight ratio of 10:90 to 70:30, and 0.01 to 10 parts by weight of (c) a polymerization initiator and 0.001 to 1 part by weight of (d) a chain transfer agent being a terpenoid compound based on 100 parts by weight of the polymerizable monomer (a).

公开(公告)号：US11547541B2

公开(公告)日：2023-01-10

申请号：US16575867

申请日：2019-09-19

Applicant: SHOFU INC.

Inventor： Daisuke Hara ,  Naoya Kitada ,  Kenzo Yamamoto ,  Yasuhiro Nishino ,  Yoshiyuki Jogetsu

IPC: G01J3/00 ,  A61C19/10 ,  A61K6/849 ,  A61K6/15 ,  A61K6/30 ,  A61K6/78

Abstract: [Problem]
To select a dental cement or a trial test material for easily obtaining high color tone adaptability to peripheral tooth substances, in mounting of or trial test of a prosthesis device
[Solution]
To provide a dental cement set consisting of a plurality of dental cements having color tones including color tones of 3 to n colors for selecting and using a dental cement from the plurality of dental cements having the color tones including the color tones of the 3 to n colors after trial test with trial test materials for the dental cement to be used from the plurality of dental cements having the color tones including the color tones of the 3 to n colors, wherein: the amount of information loss Pin with regard to first principal component determined by principal component analysis is less than 2, and. the dental cement set satisfies following Formula 1. 2≤((CL*p−1−CL*p)2+(Ca*p−1−Ca*p)2+(Cb*p−1−Cb*p)2)1/2