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1. 发明公开

US20240315929A1 DENTAL ADHESIVE KIT 审中-公开
公开(公告)号：US20240315929A1
公开(公告)日：2024-09-26
申请号：US18573666
申请日：2022-06-23
申请人： Kuraray Noritake Dental Inc.
发明人： Ryo MATSUURA , Yamato NOJIRI
IPC分类号： A61K6/30 , A61C5/00 , A61K6/62
CPC分类号： A61K6/30 , A61C5/00 , A61K6/62
摘要： The present invention provides a dental adhesive kit whereby a separate-pack type dental adhesive composition exhibits excellent bond durability with respect to the surface of a one-pack type self-adhesive dental composite resin coating a prepared tooth surface. The present invention relates to a dental adhesive kit comprising: a one-pack type self-adhesive dental composite resin (X) that comprises a monomer (a-1) having a divalent phosphoric acid group with a backbone C8 to C16 alkyl or alkylene group within the molecule, a monomer (b) having no acidic group, a photopolymerization initiator (c), and a filler (d); and a separate-pack type dental adhesive composition (Y) that comprises a first agent and a second agent that are separately packed from each other, with the first agent comprising a monomer (a) having an acidic group, and a chemical polymerization initiator (e), and the second agent comprising a monomer (b) having no acidic group, wherein a cured product of the self-adhesive dental composite resin (X) after light curing has a flexural modulus ranging from 1.5 to 6 GPa, and a cured product of the separate-pack type dental adhesive composition (Y) after chemical curing has a flexural modulus ranging from 1.5 to 6 GPa.

2. 发明授权

US11986365B2 Dental prosthesis coloring device, machining apparatus, and coloring method 有权
公开(公告)号：US11986365B2
公开(公告)日：2024-05-21
申请号：US17439981
申请日：2020-03-19
申请人： KURARAY NORITAKE DENTAL INC.
发明人： Yoshihisa Ito , Sho Ito
IPC分类号： B41J3/407 , A61C13/08 , A61C13/083 , B41M5/00 , F27B17/02
CPC分类号： A61C13/082 , A61C13/083 , B41J3/4073 , B41M5/0047 , B41M5/007 , B41M5/0088 , F27B17/025
摘要： A coloring device for coloring a dental prosthesis by an inkjet method, the dental prosthesis coloring device includes an inkjet head having a nozzle that ejects ink droplets; a holding unit that holds the prosthesis; a drive unit that moves the inkjet head or the holding unit in a predetermined direction in an XYZ orthogonal coordinate system; and a control unit that controls the inkjet head and the drive unit, wherein the control unit is configured to control the inkjet head and the drive unit based on predetermined coloring data and three-dimensional data of the prosthesis.

3. 发明公开

US20240091107A1 DENTAL COMPOSITION 审中-公开
公开(公告)号：US20240091107A1
公开(公告)日：2024-03-21
申请号：US18269383
申请日：2021-12-24
申请人： Kuraray Noritake Dental Inc.
发明人： Ryo MATSUURA
IPC分类号： A61K6/887 , A61C5/20 , C08F222/10 , C08L35/02
CPC分类号： A61K6/887 , A61C5/20 , C08F222/1025 , C08L35/02 , A61C2201/00 , C08F2800/20 , C08L2203/02
摘要： An object of the present invention is to provide a dental composition that exhibits small polymerization shrinkage stress, and provides excellent mechanical strength. The present invention relates to a dental composition comprising a compound (A), a monomer (B) having a solubility of 50 g/L or more in acetone at 25° C., and a polymerization initiator (C),
wherein the compound (A) has a weight-average molecular weight of 1,000 to 80,000, and includes a Tg of less than 40° C., in addition to having a solubility of less than 50 g/L in acetone at 25° C. Preferably, the compound (A) comprises a compound having a polymerizable group.

4. 发明公开

US20240065945A1 CURABLE CALCIUM PHOSPHATE DENTAL CEMENT 审中-公开
公开(公告)号：US20240065945A1
公开(公告)日：2024-02-29
申请号：US18269981
申请日：2021-12-28
申请人： Kuraray Noritake Dental Inc.
发明人： Ryo FUJIMAKI
IPC分类号： A61K6/864 , A61Q11/00
CPC分类号： A61K6/864 , A61Q11/00
摘要： The present invention provides curable calcium phosphate dental cement that has excellent sealability for dentinal tubule, is expected to form fluoroapatite, and has a curing time that is advantageous for clinical use. The present invention is directed to curable calcium phosphate dental cement including: a first material as powder or nonaqueous paste; and a second material as liquid or aqueous paste, and, in the curable calcium phosphate dental cement, the first material comprises tetracalcium phosphate (A), alkali metal salt of phosphoric acid (B), and acidic calcium phosphate (C), the second material comprises water (D), and at least one of the first material and the second material comprises a fluorine compound (E) and an organic acid (F) having a molecular weight of 10000 or less.

5. 发明公开

US20240043317A1 DENTAL GLASS COMPOSITION 审中-公开
公开(公告)号：US20240043317A1
公开(公告)日：2024-02-08
申请号：US18265476
申请日：2021-12-06
申请人： Kuraray Noritake Dental Inc.
发明人： Tomohiro EMOTO , Nobusuke KASHIKI , Shinichiro KATO
IPC分类号： C03C8/16 , C03C4/00 , C04B41/00 , C04B41/50 , C04B41/45 , C04B41/86
CPC分类号： C03C8/16 , C03C4/0021 , C04B41/009 , C04B41/5022 , C04B41/4539 , C04B41/0072 , C04B41/86 , C03C2204/00 , C03C2209/00
摘要： The present invention provides a dental glass composition that has excellent fixability to dental prostheses, and that does not need firing and fixing to layer color or enable a build-up of porcelain thereon. The present invention relates to a dental glass composition comprising a glass powder (A) and a wax component (B). The glass powder (A) has an average particle diameter of preferably 0.05 μm to 50 μm. The wax component (B) has a boiling point of preferably 400° C. or less.

6. 发明申请

US20220362110A1 DENTAL CURABLE COMPOSITION 有权
公开(公告)号：US20220362110A1
公开(公告)日：2022-11-17
申请号：US17761248
申请日：2020-09-18
申请人： KURARAY NORITAKE DENTAL INC.
发明人： Tatsuya KAJIKAWA , Hirotaka HORIGUCHI
IPC分类号： A61K6/891 , A61K6/17
摘要： A dental curable composition includes a polymerizable monomer (A), a filler (B), and a polymerization initiator (C). The polymerizable monomer (A) contains a polyfunctional (meth)acrylic monomer (A-1) having no aromatic ring but having a moiety (X) constituted by an alkoxylene repeating unit having 1 to 15 carbon atoms, and a polyfunctional (meth)acrylic monomer (A-2) having an aromatic ring but no hydroxyl group. The moiety (X) has a C/O of 2.5 to 10 as a ratio of a total number of carbon atoms to a total number of oxygen atoms in the moiety (X). The moiety (X) has a backbone with a total of 25 to 60 constituent carbon atoms and oxygen atoms altogether. A content of the polyfunctional (meth)acrylic monomer (A-1) is 3 to 60 parts by mass in 100 parts by mass of the polymerizable monomer (A).

7. 发明授权

US11484477B2 Dental adhesive material kit 有权
公开(公告)号：US11484477B2
公开(公告)日：2022-11-01
申请号：US16955888
申请日：2018-12-20
申请人： KURARAY NORITAKE DENTAL INC.
发明人： Ling Hong , Shumei Ishihara , Nobusuke Kashiki
IPC分类号： A61K6/853 , A61K6/896 , A61K6/58 , A61K6/62
摘要： The present invention provides a dental adhesive material kit that exhibits high adhesive property to tooth structure and dental prosthesis through photopolymerization while maintaining good ease of handling with the paste properties that undergo little change during long storage. The present invention relates to a dental adhesive material kit comprising:
an aqueous adhesive dental composition (X) comprising a radical polymerizable monomer (a) containing an acidic group, a polymerization accelerator (b), water (c), and a radical polymerizable monomer (d) containing no acidic group; and
a curable dental composition (Y) comprising a hydrophilic radical polymerizable monomer (d-1) containing no acidic group, a hydrophobic radical polymerizable monomer (d-2) containing no acidic group, a chemical polymerization initiator (e), a photopolymerization initiator (f), and a filler (g),
the filler (g) being a filler treated with a surface treatment agent, and having an average particle diameter of 0.01 to 50.0 μm,
the surface treatment agent comprising a silane coupling agent (A) represented by general formula [1], and an organosilazane (B) represented by general formula [2].

8. 发明申请

US20220218572A1 DENTAL RESTORATIVE CURABLE COMPOSITION 有权
公开(公告)号：US20220218572A1
公开(公告)日：2022-07-14
申请号：US17605951
申请日：2020-04-23
申请人： KURARAY NORITAKE DENTAL INC.
发明人： Masashi INOUE , Seiya ICHIKAWA , Kenji SUZUKI , Hayato MIYAKAWA , Tatsuya KAJIKAWA , Hirotaka HORIGUCHI
IPC分类号： A61K6/889 , A61K6/62 , A61K6/64 , A61K6/71
摘要： A dental restorative curable compositions may have a high mechanical strength and excellent water resistance and polishability in the form of a cured product. A dental composite resin may include such compositions. A dental mill blank may include the cured product of such compositions. A dental restorative curable composition may include: a (meth)acrylic acid ester compound (A) having two or more (meth)acryloyloxy groups per molecule; a mono(meth)acrylic acid ester compound (B); an inorganic filler (C) having an average primary particle diameter of 0.01 to 5 μm; and a polymerization initiator (D). The mono(meth)acrylic acid ester compound may include at least one selected from the group consisting of a mono(meth)acrylic acid ester compound (B-1) of formula (I): and a mono(meth)acrylic acid ester compound (B-2) of formula (II):

9. 发明申请

US20220175621A1 SOLVENT-FREE DENTAL ADHESIVE COMPOSITION 有权
公开(公告)号：US20220175621A1
公开(公告)日：2022-06-09
申请号：US17436277
申请日：2020-03-05
申请人： KURARAY NORITAKE DENTAL INC.
发明人： Ryo MATSUURA
IPC分类号： A61K6/62 , A61K6/60 , A61K6/30 , A61K6/891
摘要： The present invention provides a solvent-free dental adhesive composition exhibiting high initial bond strength and high bond durability to a tooth structure and being substantially free of water and an organic solvent. The present invention relates to a solvent-free dental adhesive composition comprising: an acid group-containing polymerizable monomer (A); a hydrophobic polymerizable monomer (B) having no acid group; and a photopolymerization initiator (C), wherein the photopolymerization initiator (C) comprises at least one selected from the group consisting of a compound (C-1) having a particular structure and a compound (C-2) having a particular structure.

10. 发明申请

US20220153649A1 ZIRCONIA SINTERED BODY HAVING HIGH LINEAR LIGHT TRANSMITTANCE 有权
公开(公告)号：US20220153649A1
公开(公告)日：2022-05-19
申请号：US17436238
申请日：2020-03-05
申请人： KURARAY NORITAKE DENTAL INC.
发明人： Yasutaka KUDO
IPC分类号： C04B35/488 , C04B35/64 , C09K11/02
摘要： A zirconia sintered body may excel in translucency, strength, and linear light transmittance with no use of an HIP device, and a zirconia molded body and a zirconia pre-sintered body from which such a zirconia sintered body can be obtained. A zirconia molded body may include zirconia particles with 2.0 to 9.0 mol % yttria, an average primary particle diameter of 60 nm or less, and 0.5 mass % or less zirconia particles having a particle diameter >100 nm, wherein the zirconia molded body has ΔL*(W−B) of 5+ through a thickness of 1.5 mm. A zirconia pre-sintered body may include 2.0 to 9.0 mol % yttria, and have a ΔL*(W−B) of 5+ through a thickness of 1.5 mm. A zirconia sintered body may include: a fluorescent agent; 2.0 to 9.0 mol % yttria, and have a linear light transmittance of 1% or more through a thickness of 1.0 mm.

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