摘要:
This invention discloses a dental adhesive composition comprising (A) a polymerizable monomer comprising an acidic-group containing polymerizable monomer such as 11-methacryloyloxy-1,1-undecane dicarboxylic acid, (B) a mixed filler of a spherical filler substantially consisting of a non-crosslinking polymethyl methacrylate and a spherical filler substantially consisting of a non-crosslinking polyethyl methacrylate; and (C) a polymerization initiator; and a dental adhesive kit comprising the above dental adhesive composition in combination with a dental primer comprising (D) an acidic-group containing polymerizable monomer, (E) an aryl borate, (F) an organosulfinic acid salt and (G) water. The dental adhesive composition exhibits good operability and improved adhesion performance.
摘要:
[Problems] To provide a one-package type tooth surface coating material that is capable of forming, on the surface of a tooth, a cured film having not only a very high strength of adhesion to the tooth surface but also excellent properties such as long-term adhesion, long-term durability, dentinal tubule occlusion and aesthetic appearance, and that has excellent storage stability and can be stored in the form of one package.[Means for Solution] A one-package type tooth surface coating material comprising (A) a polymerizable monomer component containing not less than 5% by mass of an acidic group-containing polymerizable monomer; (B) polyvalent metal ions; (C) a volatile water-soluble organic solvent; (D) water; and (E) an effective amount of a photopolymerization initiator; the amount of the polyvalent metal ions (B) and the amount of the volatile water-soluble organic solvent (C) satisfying a specific relationship.
摘要:
A one-package type tooth surface coating material that is capable of forming, on the surface of a tooth, a cured film having not only a very high strength of adhesion to the tooth surface but also excellent properties such as long-term adhesion, long-term durability, dentinal tubule occlusion and aesthetic appearance, and that has excellent storage stability and can be stored in the form of one package. The one-package type tooth surface coating material includes (A) a polymerizable monomer component containing not less than 5% by mass of an acidic group-containing polymerizable monomer; (B) polyvalent metal ions; (C) a volatile water-soluble organic solvent; (D) water; and (E) an effective amount of a photopolymerization initiator; the amount of the polyvalent metal ions (B) and the amount of the volatile water-soluble organic solvent (C) satisfying a specific relationship.
摘要:
According to the present invention, there are disclosed a radical polymerization catalyst comprising an aryl borate compound, an acidic compound and a +tetravalent and/or +pentavalent vanadium compound; and a curable composition, a dental composition, a dental adhesive, a dental pretreatment agent, a dental adhesive kit, etc. all containing the radical polymerization catalyst.
摘要:
A rotary ozonizer includes a drive motor for driving a rotor and an air compressor. The rotor is housed in a cylindrical body serving as an stationary electrode. The rotor is secured to a rotor shaft extending through the cylindrical body and rotating upon rotation of the motor through an insulating joint. The rotor serves as a rotary electrode, and provides an electrical discharge spaced relative to the cylindrical body. Electrical power supply portions are connected to the rotor and to the stationary electrode, and end plates are provided to cover open ends of the cylindrical body. The end plates rotatably support the rotor shaft. The motor, the insulating joint, the cylindrical body and the compressor are aligned coaxially in one of the embodiments of the present invention.
摘要:
A primer used for pre-treating the surfaces of a prosthetic, which exhibits a large adhering force at the time of adhering a prosthetic of metal oxide ceramics to an object to be joined by using an adhesive such as a dental cement, the large adhering force being maintained for extended periods of time even in a severe environment such as in an oral cavity. A primer composition for metal oxide ceramics includes (A) a polymerizable monomer component containing 5% by mass or more, preferably, 5% by mass to 80% by mass of an acidic group-containing polymerizable monomer as represented by a 11-methacryloyloxy-1,1-undecanedicarboxylic acid and a rest of a polymerizable monomer without acidic group, such as triethylene glycol dimethacrylate; (B) polyvalent metal ions resulting from a titanium tetrabutoxide or the like; and (C) an organic solvent such as acetone or ethyl alcohol, wherein water is not substantially contained.
摘要:
The present invention relates to an internal quality measuring apparatus for measuring an internal quality of an object, and the apparatus has a conveying device, a detecting device, a light projecting device, a light receiving device, an analyzing device and a pseudo-object member interposing device, and the analyzing device compares light received with a pseudo-object member, with reference data preliminarily stored, and correct a result of the analysis, based thereon.
摘要:
[Problems to be Solved] To provide a dental chemical polymerization catalyst comprising, particularly, a combination of an aryl borate compound and an acid compound, and exhibiting not only excellent polymerizing activity but also storage stability. [Means for Solution] A dental chemical polymerization catalyst comprising (A) an aryl borate compound; (B)an acid compound; (C) a vanadium compound having a valency of +IV or +V; and (D) a phenol type compound represented by the following general formula (1), wherein X1, X2 and X3 are each a hydrogen atom or a substitutent selected from the group consisting of a hydroxyl group, an alkoxy group and an alkyl group.
摘要:
The present invention relates to an internal quality measuring apparatus for measuring an internal quality of an object, and the apparatus has a conveying device, a detecting device, a light projecting device, a light receiving device, an analyzing device and a pseudo-object member interposing device, and the analyzing device compares light received with a pseudo-object member, with reference data preliminarily stored, and correct a result of the analysis, based thereon.
摘要:
A thiouracil derivative represented by the following general formula (1) or (2) ##STR1## (wherein, R.sup.1 and R.sup.2 each are a hydrogen atom or an alkyl group, and at least one of R.sup.1 and R.sup.2 is a hydrogen atom, and R.sup.3 is a hydrogen atom, an alkyl group or a phenyl group, and R.sup.4 is a bivalent saturated hydrocarbon group having 2 to 12 carbon atoms, Z is --COO--, CH.sub.2 O-- or --C.sub.6 H.sub.4 --CH.sub.2 O--, and R.sup.5 is a hydrogen atom or a methyl group), and a metal surface-treating agent for bonding a metal, particularly a noble metal to a resin or the like in high adhesive strength and in high water resistance and high durability which contains the above thiouracil derivative and an organic solvent such as acetone or ethanol.