公开(公告)号：US12133778B2

公开(公告)日：2024-11-05

申请号：US17422504

申请日：2019-12-24

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Ayumu Gyakushi ,  Tatsuya Yamazaki

IPC: A61C13/01 ,  A61C8/00 ,  C08L33/04

Abstract: A curable composition for a denture base is provided which comprises a paste-like composition containing (A) (meth)acrylic monomers, (B) a monomer-absorbing porous organic cross-linked polymer which can absorb the (A) (meth)acrylic monomers, and (C) a polymerization initiator selected from a photopolymerization initiator and a thermal polymerization initiator, wherein the content of (B) the monomer-absorbing porous organic cross-linked polymer is 20-80 parts by mass per 100 parts by mass of the (A) (meth)acrylic monomers, and the absorption amount: RAb={(g−A)/(g−B)}, measured in accordance with JIS K5101-13-1:2004, and defined by the amount of (A) (meth)acrylic monomers: g−A (unit: g) absorbed per unit amount of (B) the monomer-absorbing porous organic cross-linked polymer: g−B (unit: g) is greater than or equal to 1.5.

公开(公告)号：US10973740B2

公开(公告)日：2021-04-13

申请号：US16318610

申请日：2017-07-20

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Miki Hitomi ,  Ayumu Gyakushi ,  Kei Nakashima

IPC: A61K6/887 ,  A61K6/35 ,  A61K6/20 ,  A61K6/00 ,  A61K6/60 ,  A61K6/831

Abstract: The present invention provides a powder-liquid type denture base liner comprising: a powder material including (A) uncrosslinked resin particles, (B) an organic peroxide, (C) a pyrimidine trione derivative, and (D) an organic metal compound; and a liquid material including (E) a radical polymerizable monomer and (F) an aromatic amine compound, wherein the powder-liquid denture base liner is characterized in that the (C) pyrimidine trione derivative is 0.0002-1.0 mass parts per 100 mass parts of (E) radical polymerizable monomer.

公开(公告)号：US10299897B2

公开(公告)日：2019-05-28

申请号：US15107288

申请日：2015-01-06

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Ayumu Gyakushi ,  Kouji Matsushige

IPC: A61K6/00 ,  A61C13/07

Abstract: The dental plate liner includes: a paste (i) containing (A) a (meth)acrylic acid-based polymer, and a fluorine-containing (meth)acrylic acid-based polymerizable monomer in which (A) the (meth)acrylic acid-based polymer has a solubility of less than 20 mass %; and a paste (ii) containing a (meth)acrylic acid-based polymerizable monomer in which (A) the (meth)acrylic acid-based polymer has a solubility of 20 mass % or more, and a filler, in which at least one paste selected from the group consisting of the paste (i) and the paste (ii) contains a polymerization initiator, and in which the dental plate liner is used through mixing of the paste (i) and the paste (ii) immediately before use.

公开(公告)号：US12232913B2

公开(公告)日：2025-02-25

申请号：US17440218

申请日：2020-03-04

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Mana Toyoda ,  Ayumu Gyakushi ,  Tatsuya Yamazaki

IPC: A61C13/01 ,  A61C11/08 ,  A61C13/00 ,  A61C13/097 ,  A61C13/10

Abstract: A denture including a denture base where artificial teeth are fixed, the denture base includes a reference denture base member to which the artificial teeth are fixed and an adjusting member formed of a cured body of a curable denture base material, the adjusting member being joined to the reference denture base member, the adjusting member includes an anterior adjusting member that is joined to a mucosal surface of a base anterior region to form an anterior region together with the base anterior region, and a posterior adjusting member that is joined to a mucosal surface of a base posterior region to form a posterior region together with the base posterior region, and at least parts of base edge side distal end regions in the anterior region and the posterior region are formed of the anterior adjusting member and the posterior adjusting member, respectively.

公开(公告)号：US20220087795A1

公开(公告)日：2022-03-24

申请号：US17422504

申请日：2019-12-24

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Ayumu Gyakushi ,  Tatsuya Yamazaki

IPC: A61C13/01 ,  A61C8/00

Abstract: A curable composition for a denture base is provided which comprises a paste-like composition containing (A) (meth)acrylic monomers, (B) a monomer-absorbing porous organic cross-linked polymer which can absorb the (A) (meth)acrylic monomers, and (C) a polymerization initiator selected from a photopolymerization initiator and a thermal polymerization initiator, wherein the content of (B) the monomer-absorbing porous organic cross-linked polymer is 20-80 parts by mass per 100 parts by mass of the (A) (meth)acrylic monomers, and the absorption amount: RAb={(g−A)/(g−B)}, measured in accordance with JIS K5101-13-1:2004, and defined by the amount of (A) (meth)acrylic monomers: g−A (unit: g) absorbed per unit amount of (B) the monomer-absorbing porous organic cross-linked polymer: g−B (unit: g) is greater than or equal to 1.5.