Kuraray Noritake Dental Inc.

Kuraray Medical Inc.

Kurray Medical Inc.

Naoki Nishigaki

Mitsunobu Kawashima

Yamato Nojiri

Hiroshige Ishino

Kazumitsu Nakatsuka

Koichi Okada

Kenji Suzuki

Naofumi Murata

Mitsuru Takei

Shumei Ishihara

Takahiro Sekiguchi

Kenji Hatanaka

Ai Hinamoto

Akiko Tsuji

A dental adhesive composition may exhibit high bond strength, e.g., initial bond strength and bond durability, to sandblasted zirconia. Such a dental adhesive composition may include (A) a dihydrogen phosphate monoester group-containing polymerizable monomer of formula (1): and Rmay be H or a methyl group, and Xand Xmay be an optionally substituted, linear or branched hydrocarbon group having 8 to 16 carbon atoms. The hydrocarbon group of Xand/or Xmay have a hydrocarbon chain comprising an —O—, —S—, and/or a phenylene group.

Adhesive composition for dental use

The present invention provides a dental adhesive composition that, even after photocuring with a high-output LED irradiator, shows high bond strength not only for dentin untreated by phosphoric acid etching but also for dentin treated by phosphoric acid etching. The present invention relates to a dental adhesive composition comprising a phosphoric acid group-containing polymerizable monomer (A), the phosphoric acid group-containing polymerizable monomer (A) comprising: a dihydrogen phosphate monoester group-containing polymerizable monomer (A-1) represented by general formula (1); a hydrogen phosphate diester group-containing polymerizable monomer (A-2) represented by general formula (2); and a phosphoric acid tetraester group-containing polymerizable monomer (A-3) represented by general formula (3).

The present invention provides a composition for optical three-dimensional modeling that offers desirable shape accuracy in optical three-dimensional modeling, and that provides desirable transparency and mechanical characteristics upon being cured. The present invention relates to a composition for optical three-dimensional modeling comprising a polymerizable monomer (a), an ultraviolet-absorbing inorganic particle (b), and a photopolymerization initiator (c).

Composition for optical three-dimensional modeling

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

The present invention provides a one-part dental adhesive composition that exhibits excellent adhesive property and bond durability to a tooth structure (particularly dentin) and has high stability to ambient light, in which respective components have been mixed uniformly. The present invention is a one-part dental adhesive composition including a polymerizable monomer (A) having an acidic group, a polymerizable monomer (B) having a fluorocarbon group represented by the general formula (1), water (C), and a polymerization initiator (D). A content of the polymerizable monomer (A) having an acidic group is 5.5 to 35 parts by weight in 100 parts by weight of the total amount of polymerizable monomers. (In the formula, Rdenotes a hydrogen atom or a methyl group, and Rf denotes a fluoroalkyl group having 1 to 20 carbon atoms.) 

One-part dental adhesive composition

The present invention provides a composition suitable for a dental composition. The present invention is a composition containing: a polymerizable monomer (A) having an unconjugated carbon chain with at least four carbon atoms bonded continuously, at least two polymerizable groups, and at least two hydroxyl groups; and a polymerizable monomer (B) having one polymerizable group and at least one hydroxyl group. When a suitable component is added to this composition, the resultant composition can be used suitably for dental materials such as a primer, bonding material, composite resin, and cement.

Polymerizable monomer-containing composition

The present invention relates to adhesive compositions having: a phosphate group-containing monomer (a) having a fluorocarbon group represented by Chemical Formula 1; and a solvent (b), where R is a hydrogen atom or a methyl group, n, p and q are natural numbers 2&#x2266;n&#x2266;10, p+q&#x2266;n and p+q+n&#x2266;13.

Adhesive composition

A hydrophobic acidic group-containing polymeric monomer (a); a water-soluble polymeric monomer (b); water (c); a photopolymerization initiator (d); an aromatic tertiary amine (e) having an electron-withdrawing group; a cross-linkable polymeric monomer (f); and a basic compound (g) for producing a water-soluble salt through a reaction with a part of the hydrophobic acidic group-containing polymeric monomer (a) are included as essential compounding ingredients. A one-part dental adhesive composition that exhibits high adhesive strength and high storage stability in adhesion between a teeth, and more particularly enamel or dentine, and a dental repairing material, and more particularly a resin material, is provided. Since the adhesive composition is one-part type, there is no need to mix in an adhering operation, and in addition, it exhibits high adhesive strength without performing preprocessing (etching processing and priming processing), it is suitably used as a one-step type dental adhesive composition for performing an adhering operation in a teeth repairing treatment in one processing.

Growing community of inventors

Kurashiki, Japan

Naoki Nishigaki