Abstract: Provided is a two-component mixing container in which a communication passage may be formed between a partition wall member and a second-component containing member without the need for a high processing precision and a high assembly precision. A columnar portion provided at the central portion of a second bottom wall portion of a partition wall member and a circular through hole provided in the central portion of a third bottom wall portion of a second-component containing member are fitted. A first communication passage and a second communication passage are communicated with each other, using a fitting surface formed between the columnar portion and the circular through hole.

Abstract: A single-paste, self-adhesive dental curable composition that has strong self-adhesion to biological hard tissues (such as enamel and dentin of teeth) and good color tone adaptability suitable for use for aesthetic restoration is provided. A dental curable composition contains: an inorganic particle (A) with an average grain size in the range of 0.1 to 50 ?m; an inorganic particle (B) with an average grain size in the range of 0.1 to 50 ?m; a polymerizable monomer (C); and a polymerization catalyst (D). The refractive index na of the inorganic particle (A) and the refractive index nb of the inorganic particle (B) meet the relationship of na>nb. A cured resin material (E), which is obtained by curing a polymerizable composition containing the polymerizable monomer (C) and the polymerization catalyst (D), has a refractive index ne that meets the relationship (1): 0?|na?ne|<0.01?ne?nb?0.05??(1).

Abstract: A dental curable composition that allows easily identifying the presence of the dental curable composition in an oral cavity is provided. A dental visible-light curable composition contains a fluorescent substance that generates fluorescence when irradiated with visible light. The fluorescent substance is a compound of formula A3B2C3O12 containing Ce, absorbs visible light with a peak wavelength in a wavelength range of 380 to 500 nm, and generates fluorescence with a peak wavelength in a wavelength range of 550 to 780 nm. In formula A3B2C3O12, A, B, and C are a dodecahedral eight-coordinate Y element, an octahedral six-coordinate Al element, and a tetrahedral four-coordinate Al element, respectively.

Abstract: There is provided a storage container for a dental adhesive that allows a stable dropping operation during use of a dental adhesive and smooth fine dropping work such as strict control of an amount of drops with high reproducibility, and can prevent expansion of an adhesive stored in the storage container caused by a temperature increase. A storage container for a dental adhesive is used, including a cylindrical container portion that can store a liquid such as an adhesive therein, wherein one end surface of the container portion has a discharge port communicating with an outside, the other end surface of the container portion is closed by a bottom wall, and a tail portion is formed protruding from the bottom wall to the side opposite from the discharge port.

Abstract: An artificial nail composition having improved adhesion with natural nails (user's own nails) is provided. The present invention relates to an artificial nail composition comprising (a) a photo-polymerizable monomer having at least one primary alcoholic hydroxyl group in the molecule, and/or a photo-polymerizable monomer having at least one carboxyl group and at least one primary alcoholic hydroxyl group in the molecule; (b) a photo-polymerizable monomer having at least one carboxyl group in the molecule except for the photo-polymerizable monomer (a); (c) a photo-polymerizable monomer except for the photo-polymerizable monomers (a) and (b); and (d) a photo-polymerization initiator.

Abstract: A chemicals mixing container includes: a cylinder (8) having a tubular shaped outer tube (10), and an end wall (11) which seals one end of the outer tube; an elastic partition wall (12) placed inside the outer tube to define a mixing chamber (5) within the cylinder; and an ejection auxiliary member (13) placed inside the outer tube and outside the mixing chamber, and which has an end face swollen toward the mixing chamber and moreover which is enabled to press the elastic partition wall against the end wall. The chemicals mixing container is enabled to reliably mix a liquid material and a powder material together and discharge a mixture (18) of the liquid material and the powder material without waste.

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: A chemicals mixing container (1), which allows two kinds of chemicals, a liquid material (2) and a powder material (4), to be stored therein in isolation from each other and which allows the liquid material (2) and the powder material (4) to be mixed together. The mixing container includes: a first cylinder (6); a first piston (7) which is fitted in the first cylinder (6) to define a first internal space (3); a second cylinder (8) which is connected to the first cylinder (6) or the first piston (7) so as to be rotationally slidable thereon; and a second piston (9) which is fitted in the second cylinder to define a second internal space (5). The second cylinder (8) and the first cylinder (6) or the first piston (7) to which the second cylinder (8) is connected have communicating holes (13, 14) formed in their mutual sliding surfaces at positions, respectively, eccentric relative to a rotation axis X.

Abstract: A chemicals mixing container 1 includes: a cylinder 8 having a tubular shaped outer tube 10, and an end wall 11 which seals one end of the outer tube 10 and in which an ejection hole 15 has preliminarily been formed or is formable and which has an inner wall surface swollen outward; an elastic partition wall 12 which is placed inside the outer tube 10 so as to be able to define a mixing chamber 5 within the cylinder 8, and which has such elasticity as to be swollen toward one side counter to the inner wall surface of the end wall 11; and an ejection auxiliary member 13 which is placed inside the outer tube 10 and outside the mixing chamber 5, and which has an end face swollen toward the mixing chamber 5 and moreover which is enabled to press the elastic partition wall 12 against the end wall 11. The chemicals mixing container 1 is enabled to reliably mix a liquid material 2 and a powder material 4 together and discharge a mixture 18 of the liquid material 2 and the powder material 4 without waste.

Abstract: A chemicals mixing container 1 of the invention, which allows two kinds of chemicals, a liquid material 2 and a powder material 4, to be stored therein in isolation from each other and which allows the liquid material 2 and the powder material 4 to be mixed together with reliability at a time of use, includes: a first cylinder 6; a first piston 7 which is fitted in the first cylinder 6 to define a first internal space 3; a second cylinder 8 which is connected to the first cylinder 6 or the first piston 7 so as to be rotationally slidable thereon; and a second piston 9 which is fitted in the second cylinder to define a second internal space 5.

Abstract: There is provided a storage container for a dental adhesive that allows a stable dropping operation during use of a dental adhesive and smooth fine dropping work such as strict control of an amount of drops with high reproducibility, and can prevent expansion of an adhesive stored in the storage container caused by a temperature increase. A storage container for a dental adhesive is used, including a cylindrical container portion that can store a liquid such as an adhesive therein, wherein one end surface of the container portion has a discharge port communicating with an outside, the other end surface of the container portion is closed by a bottom wall, and a tail portion is formed protruding from the bottom wall to the side opposite from the discharge port.

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 relates to a dental adhesive primer composition for use in dental fields employed to bond dental materials, such as restoration materials, dental crown materials, prosthetic materials, esthetic materials, orthodontic materials, preventive materials, core build-up materials and root canal materials, to ceramics, metals, resins, composite resins, glass ionomer cements, and hard biotissues (enamel or dentin of natural tooth). The present invention also relates to a dental adhesive primer composition including a dental adhesive composition which can be used not only in combination with another adhesive composition but also alone.

Abstract: An object of the present invention is to provide a paste-type cement composition which while retaining adhesion to tooth substance, biocompatibility, surface curability and fluorine sustained-releasability which are the characteristics derived from the conventional glass ionomer cement, reduces water sensitivity which is shortcoming of the conventional glass ionomer cement, enables simple mixing operation, does not adversely affect on the various properties of a cured cement depending on a difference in operators or a skill degree, and can afford various stable properties. There is provided a two paste-type glass ionomer cement comprising a resin-based paste containing a hydrophobic polymerizable monomer and a polymer of acidic group-containing polymerizable monomers which are insoluble to each other, and a water-based paste containing a hydrophilic polymerizable monomer and water which are soluble to each other, in which an acid reactive filler is contained in at least one of pastes.

Abstract: An object of the present invention is to provide a paste-type cement composition which while retaining adhesion to tooth substance, biocompatibility, surface curability and fluorine sustained-releasability which are the characteristics derived from the conventional glass ionomer cement, reduces water sensitivity which is shortcoming of the conventional glass ionomer cement, enables simple mixing operation, does not adversely affect on the various properties of a cured cement depending on a difference in operators or a skill degree, and can afford various stable properties. There is provided a two paste-type glass ionomer cement comprising a resin-based paste containing a hydrophobic polymerizable monomer and a polymer of acidic group-containing polymerizable monomers which are insoluble to each other, and a water-based paste containing a hydrophilic polymerizable monomer and water which are soluble to each other, in which an acid reactive filler is contained in at least one of pastes.