Kuraray Noritake Dental Inc.

Kenji Hatanaka

Shumei Ishihara

Mitsuru Takei

Yamato Nojiri

Mitsunobu Kawashima

Naoki Nishigaki

Hiroshige Ishino

Masashi Inoue

Mariko Kawana

Akiko Tsuji

Momoe Abe

The present invention provides a dental mill blank that exhibits desirable resistance against wear in opposing teeth. The present invention relates to a dental mill blank comprising: Preferably, the dental mill blank comprises an island component containing the aggregate, and a sea component containing the inorganic filler (A) and the inorganic filler (B).

Dental mill blank and method for producing same

The present invention provides a two-paste dental curable composition achieving clinically acceptable bond durability to dental adherends including dental glass ceramic restorations (particularly lithium disilicate-containing glass ceramic restorations) without using conventionally used primers. The present invention relates to a two-paste dental curable composition comprising: a first agent comprising a polymerizable monomer (a) having an acid group, a polymerizable monomer (b) having no acid group, a polymerization initiator (c), and a filler (d); and a second agent comprising a polymerizable monomer (b) having no acid group, at least one filler (e) selected from the group consisting of a basic glass filler and alumina, a polymerization accelerator (f), and a silane coupling agent (g) represented by the following general formula [I]:  (The definitions of the symbols are omitted.)

Two-paste dental curable composition

The present invention provides a self-adhesive dental composite resin maintaining mechanical strength, showing excellent storage stability, undergoing little change in transparency and properties of the paste during long-term storage, and having a small solidification risk during long-term storage. The present invention relates to a self-adhesive dental composite resin comprising: an acid group-containing (meth)acrylic polymerizable monomer (a); a polyfunctional (meth)acrylic polymerizable monomer (b) containing no acid group; a photopolymerization initiator (c); and a filler (d), wherein the filler (d) is treated with a surface treatment agent and has an average particle diameter of 0.01 to 50.0 &#x3bc;m, the surface treatment agent comprises a silane coupling agent (A) represented by the following general formula (1):CH&#x2550;C(R)&#x2014;COO&#x2014;(CH)&#x2014;Si&#x2014;RR&#x2003;&#x2003;(1), andan organosilazane (B) represented by the following general formula (2):RRR&#x2014;Si&#x2014;NH&#x2014;Si&#x2014;RRR&#x2003;&#x2003;(2).

Self-adhesive dental composite resin

The present invention provides a dentinal tubule occlusion material excellent in terms of initial degree of dentinal tubule occlusion, resistance of dentinal tubule occlusion to acids, handling properties, and storage stability. The present invention relates to an one-pack type dentinal tubule occlusion material comprising fluorapatite particles (A) having an average particle diameter of 0.6 to 10 &#x3bc;m, inorganic particles (B) having an average particle diameter of 0.6 to 10 &#x3bc;m and reactive with water to form apatite, and a non-aqueous dispersant (C).

One-pack type dentinal tubule occlusion material

The present invention relates to providing a dental curable composition that, when cured, has high metal ion release ability and highly durable physical properties. The dental curable composition of the present invention includes: a sugar compound having an &#x2014;XM group, where &#x2014;X is an acid anion group and M is a metal cation; and a curable component.

Dental curable composition

A dentinal tubule sealant including apatite particles (A) having an average particle diameter of 500 nm or less, a filler (B) having an average particle diameter of 1 to 10 &#x3bc;m, and a dispersant (C), wherein the weight ratio (A/B) of the apatite particles (A) to the filler (B) is 0.05 to 15, the dentinal tubule sealant contains 15 to 95 parts by weight of the dispersant (C) relative to 100 parts by weight in total of the apatite particles (A) and the filler (B), and the total amount of the apatite particles (A), the filler (B), and the dispersant (C) is 85 parts by weight or more relative to 100 parts by weight of the dentinal tubule sealant. There is thereby provided a dentinal tubule sealant excelling in dentinal tubule sealability immediately after treatment, durability of dentinal tubule sealing, ease of operation, and storage stability.

One-component-type dentinal tubule sealant

The present invention provides a curable calcium phosphate composition for biological hard tissue repair that yields a cured product excellent in durability in a wet environment such as in a body or an oral cavity. The present invention relates to a curable calcium phosphate composition for biological hard tissue repair, including tetracalcium phosphate particles (A), calcium hydrogen phosphate particles (B), calcium carbonate particles (C), and water (D), the curable calcium phosphate composition including 5 to 75 parts by weight of the tetracalcium phosphate particles (A), 10 to 70 parts by weight of the calcium hydrogen phosphate particles (B), and 2 to 50 parts by weight of the calcium carbonate particles (C) per 100 parts by weight of the total of the tetracalcium phosphate particles (A), the calcium hydrogen phosphate particles (B), and the calcium carbonate particles (C).

Curable calcium phosphate composition for biological hard tissue repair, bone repair material, and various dental materials

The present invention provides a dentinal tubule sealing material excellent in durability of dentinal tubule sealing performance (acid resistance) and also in storage stability. The present invention relates to a dentinal tubule sealing material including tetracalcium phosphate particles (A), calcium hydrogen phosphate particles (B), calcium carbonate particles (C), and a non-aqueous dispersant (D), the dentinal tubule sealing material including 5 to 75 parts by weight of the tetracalcium phosphate particles (A), 10 to 70 parts by weight of the calcium hydrogen phosphate particles (B), and 2 to 50 parts by weight of the calcium carbonate particles (C) per 100 parts by weight of the total of the tetracalcium phosphate particles (A), the calcium hydrogen phosphate particles (B), and the calcium carbonate particles (C).

Dentinal tubule sealing material

A dental curable composition containing fluoroaluminosilicate glass particles (A), basic calcium phosphate particles (B1), acidic calcium phosphate particles (B2), a polyalkenic acid (C), tartaric acid (D), and water (E), wherein the dental curable composition contains 70 to 99 parts by weight of (A), 1 to 30 parts by weight in total of (B1) and (B2), 10 to 40 parts by weight of (C), 0.3 to 10 parts by weight of (D), and 10 to 90 parts by weight of (E) each relative to 100 parts by weight in total of (A), (B1), and (B2), and a Ca/P ratio of a sum of (B1) and (B2) is from 1.10 to 1.95. Accordingly, provided is a dental curable composition that is high in mechanical strength, particularly compressive strength, and excellent in remineralization capability.

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Tainai, Japan

Kenji Hatanaka