Abstract: A method of manufacturing a sintered ceramic implant fixture that includes a first portion configured to be buried in tissue of a living organism and a second portion configured to serve as a mount for a superstructure. The method includes fabricating a master model, subjecting the master model to blasting to roughen a surface of the master model, fabricating a mold having a cavity that is defined by the master model having the roughened surface, pouring a slurry containing ceramic powder into the cavity of the mold to obtain a hardened but not-yet-sintered ceramic implant fixture, and sintering the hardened but not-yet-sintered ceramic implant fixture to obtain the sintered ceramic implant fixture.

Abstract: The present invention provides an antibacterial artificial nail composition which can form a cured article having an antibacterial effect by applying the composition on a surface of a natural nail or an artificial nail and polymerizing the composition, using an artificial nail technique of forming a cured article on a natural nail or an artificial nail. Disclosed is an antibacterial artificial nail composition comprising (A) a compound having at least one radical polymerizable unsaturated double bond and an antibacterial group in the molecule and/or (B) an antibacterial filler, (C) a compound having at least one radical polymerizable unsaturated double bond in the molecule, and (D) a polymerization initiator.

Abstract: The present invention provides an artificial nail composition which can easily impart a special appearance to the tip of the finger, and which is an artificial nail material coated on a natural or artificial nail, and is used by coating on the surface of a natural or artificial nail followed by polymerization and, more particularly, an artificial nail composition which is vivid and has a natural color tone having a transparent sensation, that cannot be achieved by a conventionally used artificial nail composition containing an organic and/or inorganic colorant utilizing absorption and/or a scattering phenomenon of light, and imparts special appearance by an interference color.

Abstract: An object of the present invention is to provide an artificial nail composition which can improve adhesion between a natural nail and an artificial nail, and also can suppress exfoliation or detachment. The artificial nail composition comprises: (a) a compound having at least one radical polymerizable unsaturated double bond in the molecule, (b) an acidic phosphorus compound having at least one radical polymerizable unsaturated double bond in the molecule, and (c) a radical polymerization initiator.

Abstract: An implant fixture is made from ceramics containing zirconia. The implant fixture has monoclinic percentage of 1 volume % or less. The implant fixture includes a buried portion having an arithmetic average roughness Ra in the range of 1 to 5 ?m. The zirconia content accounts for 86 mass % or more in the implant fixture. The implant fixture contains alumina and/or yttria. Further, the implant fixture has a sintered grain size of 0.45 ?m or less.

Abstract: The present invention provides a dental self-adhesive resin cement having clinically-acceptable adherability for various adherends without pre-treatment with primers. Specifically, there is provided the dental self-adhesive composite resin cement comprising: (a) a radical polymerizable monomer, (b) a polymerizable monomer having a phosphonic acid group and/or a phosphoric acid ester group, (c) a polymerizable monomer having a dibasic acid carboxyl group, (d) a filler, and (e) a polymerization catalyst.

Abstract: The present invention provides a one-component dental adhesive composition which can exhibit excellent adhesion to both materials of a dental ceramics and an organic composite containing an inorganic compound, and is excellent in can-stability. More particularly, the present invention provides a one-component dental adhesive composition comprising 1 to 60 parts by weight of (a) a silane coupling agent, 1.0 to 20.0 parts by weight based on 100 parts by weight of the (a) component of (b) an acidic group-containing polymerizable monomer, and 28 to 99 parts by weight of (c) a volatile organic solvent.

Abstract: An object of the present invention is to provide an artificial nail composition which can improve adhesion between a natural nail and an artificial nail, and also can suppress exfoliation or detachment. The artificial nail composition comprises: (a) a compound having at least one radical polymerizable unsaturated double bond in the molecule, (b) an acidic phosphorus compound having at least one radical polymerizable unsaturated double bond in the molecule, and (c) a radical polymerization initiator.

Abstract: The present invention provides an antibacterial artificial nail composition which can form a cured article having an antibacterial effect by applying the composition on a surface of a natural nail or an artificial nail and polymerizing the composition, using an artificial nail technique of forming a cured article on a natural nail or an artificial nail. Disclosed is an antibacterial artificial nail composition comprising (A) a compound having at least one radical polymerizable unsaturated double bond and an antibacterial group in the molecule and/or (B) an antibacterial filler, (C) a compound having at least one radical polymerizable unsaturated double bond in the molecule, and (D) a polymerization initiator.

Abstract: Disclosed is a one-pack type dental adhesive composition comprising: (a) 1.0 to 40.0 parts by weight of a silane coupling agent, (b) 0.01 to 0.4 part by weight of a weak acidic compound which is at least one of organic acid, boric acid and silicic acid, and has an acid dissociation exponent pKa of 3 or more in the form of an aqueous solution, (c) 0.01 to 0.4 part by weight of a strong acidic compound which is at least one of HF, HCl, HBr, HI, HNO3, HClO3, HClO4, HBrO4, HMnO4, H2SO4 and H3PO4 and has an acid dissociation exponent pKa of less than 3, (d) 0.1 to 5.0 part by weight of water, and (e) 20.0 to 99.0 parts by weight of a volatile organic solvent.

Abstract: The present invention provides a one-component dental adhesive composition which can exhibit excellent adhesion to both materials of a dental ceramics and an organic composite containing an inorganic compound, and is excellent in can-stability. More particularly, the present invention provides a one-component dental adhesive composition comprising 1 to 60 parts by weight of (a) a silane coupling agent, 1.0 to 20.0 parts by weight based on 100 parts by weight of the (a) component of (b) an acidic group-containing polymerizable monomer, and 28 to 99 parts by weight of (c) a volatile organic solvent.

Abstract: An object of the present invention is to provide a one-pack type dental adhesive composition which can exhibit excellent adhesion to any material, for example, dental ceramics, organic composites containing inorganic compounds, dental noble metals and dental non-noble metals, and also has excellent storage stability. Disclosed is a one-pack type dental adhesive composition comprising a silane coupling agent as a component (a), an acidic group-containing polymerizable monomer as a component (b), a sulfur atom-containing polymerizable monomer as a component (d), and other components.

Abstract: Disclosed is a one-pack type dental adhesive composition comprising: (a) 1.0 to 40.0 parts by weight of a silane coupling agent, (b) 0.01 to 0.4 part by weight of a weak acidic compound which is at least one of organic acid, boric acid and silicic acid, and has an acid dissociation exponent pKa of 3 or more in the form of an aqueous solution, (c) 0.01 to 0.4 part by weight of a strong acidic compound which is at least one of HF, HCl, HBr, HI, HNO3, HClO3, HClO4, HBrO4, HMnO4, H2SO4 and H3PO4 and has an acid dissociation exponent pKa of less than 3, (d) 0.1 to 5.0 part by weight of water, and (e) 20.0 to 99.0 parts by weight of a volatile organic solvent.

Abstract: The present invention provides an antibacterial artificial nail composition which can form a cured article having an antibacterial effect by applying the composition on a surface of a natural nail or an artificial nail and polymerizing the composition, using an artificial nail technique of forming a cured article on a natural nail or an artificial nail. Disclosed is an antibacterial artificial nail composition comprising (A) a compound having at least one radical polymerizable unsaturated double bond and an antibacterial group in the molecule and/or (B) an antibacterial filler, (C) a compound having at least one radical polymerizable unsaturated double bond in the molecule, and (D) a polymerization initiator.

Abstract: The present invention provides a one-component dental adhesive composition which can exhibit excellent adhesion to both materials of a dental ceramics and an organic composite containing an inorganic compound, and is excellent in can-stability. More particularly, the present invention provides a one-component dental adhesive composition comprising 1 to 60 parts by weight of (a) a silane coupling agent, 1.0 to 20.0 parts by weight based on 100 parts by weight of the (a) component of (b) an acidic group-containing polymerizable monomer, and 28 to 99 parts by weight of (c) a volatile organic solvent.

Abstract: An object of the present invention is to provide an artificial nail composition which can improve adhesion between a natural nail and an artificial nail, and also can suppress exfoliation or detachment. The artificial nail composition comprises: (a) a compound having at least one radical polymerizable unsaturated double bond in the molecule, (b) an acidic phosphorus compound having at least one radical polymerizable unsaturated double bond in the molecule, and (c) a radical polymerization initiator.

Abstract: The present invention provides a dental self-adhesive resin cement having clinically-acceptable adherability for various adherends without pre-treatment with primers. Specifically, there is provided the dental self-adhesive composite resin cement comprising: (a) a radical polymerizable monomer, (b) a polymerizable monomer having a phosphonic acid group and/or a phosphoric acid ester group, (c) a polymerizable monomer having a dibasic acid carboxyl group, (d) a filler, and (e) a polymerization catalyst.

Abstract: An object of the present invention is to provide an artificial nail composition having improved curability. Another object of the present invention is to provide an artificial nail composition which causes less yellowing and has excellent internal curability. The artificial nail composition comprises: a component (a): a compound having at least one radical polymerizable unsaturated double bond in the molecule, and a component (b): a photopolymerization initiator selected from (i) an acylphosphine oxide-type photopolymerization initiator and (ii) a mixture of an acylphosphine oxide-type photopolymerization initiator and an ?-hydroxyalkylphenone-type photopolymerization initiator, wherein the amount of the component (b) is 0.05 to 4.00 parts by weight with respect to 100 parts by weight of the component (a).

Abstract: The present invention provides an artificial nail composition which can easily impart a special appearance to the tip of the finger, and which is an artificial nail material coated on a natural or artificial nail, and is used by coating on the surface of a natural or artificial nail followed by polymerization and, more particularly, an artificial nail composition which is vivid and has a natural color tone having a transparent sensation, that cannot be achieved by a conventionally used artificial nail composition containing an organic and/or inorganic colorant utilizing absorption and/or a scattering phenomenon of light, and imparts special appearance by an interference color.

Abstract: The present invention provides an artificial nail composition which can easily impart a special appearance to the tip of the finger, and which is an artificial nail material coated on a natural or artificial nail, and is used by coating on the surface of a natural or artificial nail followed by polymerization and, more particularly, an artificial nail composition which is vivid and has a natural color tone having a transparent sensation, that cannot be achieved by a conventionally used artificial nail composition containing an organic and/or inorganic colorant utilizing absorption and/or a scattering phenomenon of light, and imparts special appearance by an interference color.