[Problem] To provide a dental photocurable composition having sufficient mechanical property and being excellent in color tone selectivity because of having a small color difference between before curing and after curing. [Solution] To provide a dental photocurable composition, comprising (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator, (D) photopolymerization accelerator and (E) filler, wherein, the dental photocurable composition comprises (B-1) α-diketone compound as the (B) photosensitizer, and the dental photocurable composition comprises, with respect to 100 parts by mass of the (A) polymerizable monomer, 0.15 parts by mass or less of the (B-1) α-diketone compound, 0.5 parts by mass or more of the (C) photoacid generator, and 100 parts by mass or more of the (E) filler.

[Problem] To provide a dental photocurable composition having sufficient mechanical property and being excellent in color tone selectivity because of having a small color difference between before curing and after curing. [Solution] To provide a dental photocurable composition, comprising (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator, (D) photopolymerization accelerator and (E) filler, wherein, the dental photocurable composition comprises (B-1) α-diketone compound as the (B) photosensitizer, and the dental photocurable composition comprises, with respect to 100 parts by mass of the (A) polymerizable monomer, 0.15 parts by mass or less of the (B-1) α-diketone compound, 0.5 parts by mass or more of the (C) photoacid generator, and 100 parts by mass or more of the (E) filler.

A dental polymerizable composition includes: a first component containing a (meth)acrylate, a pentavalent vanadium compound, and a thiourea derivative; and a second component containing a (meth)acrylate and an organic peroxide.

A dental polymerizable composition includes: a first component containing a (meth)acrylate, a pentavalent vanadium compound, and a thiourea derivative; and a second component containing a (meth)acrylate and an organic peroxide.

The present invention provides a dental composition that exhibits high adhesive property for both dental restoration materials, such as porcelain, and tooth structure. The present invention relates to a one-part dental composition comprising a compound (A) represented by the following general formula (1), a monomer (B) having an acidic group, and water (C),
Y—SiR.sub.nX.sub.(3-n)  (1),
wherein Y represents a monovalent organic group having a polymerizable group, R represents a group selected from the group consisting of an alkyl group, an aryl group, and an aralkyl group, X represents a hydroxyl group or a hydrolyzable group, and n represents an integer of 1 or 2, in which the plurality of R may be the same or different, and the plurality of X may be the same or different, and the content of the water (C) 1.0 to 50 mass %.

Pure compressed diamond (PCD), grown in a laboratory, is laser-shaped into dental implants with high tensile strength, high compressive strength, high thermal conductivity, and which are harder than any other substance on earth. PCD is harder than ceramic zirconia and harder than titanium. Because PCD is pure carbon, it is also 100% compatible with carbon-based living tissue. Unlike titanium, it does not provoke an immune response. PCD implants readily integrate into human jawbone. This drastically reduces post-surgery bone loss.

The present invention relates to particles comprising a core, in particular a magnetic core, and a first coating of a first shell material, wherein a second coating of a second shell material is applied to the surface of the first coating facing away from the core, the second shell material is different from the first shell material and has a higher refractive index than the first shell material.

The present invention relates to particles comprising a core, in particular a magnetic core, and a first coating of a first shell material, wherein a second coating of a second shell material is applied to the surface of the first coating facing away from the core, the second shell material is different from the first shell material and has a higher refractive index than the first shell material.

To provide a dental photocurable composition which can exhibit excellent mechanical characteristics even after returning from a low temperature to room temperature. To provide a dental photocurable composition, comprising (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator and (D) photopolymerization accelerator and the (C) photoacid generator may include only (C-1) iodonium salt-based compound of an anion having log S of −4 or less.

To provide a dental photocurable composition which can exhibit excellent mechanical characteristics even after returning from a low temperature to room temperature. To provide a dental photocurable composition, comprising (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator and (D) photopolymerization accelerator and the (C) photoacid generator may include only (C-1) iodonium salt-based compound of an anion having log S of −4 or less.