Tokuyama Dental Corporation Patent applications |
Patent application number | Title | Published |
20150190313 | DENTAL ADHESIVE COMPOSITION, DENTAL ADHESIVE PRIMER,DENTAL ADHESIVE BONDING MATERIAL, DENTAL ADHESIVECOMPOSITE RESIN, AND DENTAL ADHESIVE RESIN CEMENT - Provided are a dental adhesive composition, a dental adhesive primer, a dental adhesive bonding material, a dental adhesive composite resin, and a dental adhesive resin cement each having an excellent adhesive force and excellent adhesion durability. Specifically, provided are a dental adhesive composition, including (A) a polymerizable monomer containing an acidic group-containing polymerizable monomer, and (B) a dendritic polymer, and a dental adhesive primer, a dental adhesive bonding material, a dental adhesive composite resin, and a dental adhesive resin cement each using the dental adhesive composition. | 07-09-2015 |
20150011673 | ORGANIC/INORGANIC COMPOSITE, MANUFACTURING METHOD THEREFOR, DENTAL MATERIAL, AND BONE SUBSTITUTE MATERIAL - Provided are: an organic/inorganic composite, and a manufacturing method therefor; and a dental material and bone substitute material manufactured using the organic/inorganic composite. The organic/inorganic composite includes: (A) 100 parts by mass of a thermoplastic resin containing as a main component at least one kind selected from a polyarylketone resin and a polysulfone resin; and (B) 60 to 300 parts by mass of an inorganic particle mixture dispersed in the thermoplastic resin, in which the inorganic particle mixture contains inorganic particles each having a particle diameter of from 200 to 700 nm at a content of 25 vol % or more, and inorganic particles each having a particle diameter of from 40 to 100 nm at a content of 10 vol % or more. | 01-08-2015 |
20140364533 | RESIN COMPOSITE, DENTAL MATERIAL, BONE SUBSTITUTE MATERIAL AND METHOD FOR MANUFACTURING RESIN COMPOSITE - Provided are: a resin composite, which is produced using: 100 parts by mass of a resin having a melting point or fluidization temperature of from 200 to 500° C.; and 40 to 400 parts by mass of inorganic particles surface-treated with a treatment-agent having a reactive double bond group or an aromatic group at an end thereof, the resin composite having an rate of 55% or more a manufacturing method for the resin composite; and a dental material using the resin composite: And the rate (%) represents 100×{EP/(EP+V)}; EP represents the number of the inorganic particles per square region measuring 10 μm on each side exposed in a polished surface of the resin composite; and V represents the number of voids per square region measuring 10 μm on each side formed through elimination of the inorganic particles in the square region where the EP is counted. | 12-11-2014 |
20140213687 | ORGANIC-INORGANIC COMPOSITE FILLER, AND METHOD FOR PRODUCING THE SAME - An organic-inorganic composite filler contains: inorganic aggregate particles formed by aggregation of inorganic primary particles with an average particle diameter of 10 to 1000 nm; an organic resin phase including a cured polymer of a polymerizable monomer covering surfaces of the inorganic primary particles and bonding the inorganic primary particles to each other, and a water absorbing resin; and aggregation gaps with a volume of micropores formed between parts of the organic resin phase of 0.01 to 0.30 cm | 07-31-2014 |
20140206792 | DENTAL RESTORATIVE MATERIAL - The present invention discloses a dental restorative material comprising 10-50 mass % of (A) a polymerizable monomer, 5-80 mass % of (B) an organic-inorganic composite filler which is prepared by dispersing an inorganic fine filler having an average particle diameter of 1 μm or smaller in an organic matrix and has an average particle diameter of 5.0-50 μm, and 10-60 mass % of (C) a third component, i.e., an inorganic filler having an average particle diameter of 1.1-5.0 μm, wherein the absolute value of the difference between the refractive index [nC] of the inorganic filler (C) and the refractive index [nB] of the organic-inorganic composite filler (B) (i.e., |nC−nB|) is 0.005-0.07 at 32° C. and the absolute value of the difference between the refractive index [nA] of the cured product of the polymerizable monomer (A) and the refractive index [nC] of the inorganic filler (C) (i.e., |nA−nC|) is 0.005-0.05 at 32° C. | 07-24-2014 |
20140017638 | KIT OF MATERIAL FOR REPAIRING DENTIN - The present invention discloses a kit of material for dentin restoration including a combination of a plurality of kinds of curable pastes each having a different hue, wherein each of the curable pastes exhibits L* of 55 to 75 and a fluctuation range of L* of 3 or less in a CIELab color system when the color of a cured body with a thickness of 3.0 mm obtained by curing the pastes is measured against a black background, and a method for producing the kit of material for dentin restoration. | 01-16-2014 |
20130324635 | CURABLE COMPOSITION FOR DENTISTRY - A dental curable composition includes: a radically polymerizable monomer; a polymerization initiator; and a hyperbranched polymer, in which the hyperbranched polymer includes a unit structure represented by the general formula (I) and unit structures represented by the general formula (IIA) and/or the general formula (IIB) (in the general formula (I), A represents a single bond for bonding C and R | 12-05-2013 |
20130220172 | ALGINATE IMPRESSION MATERIAL FOR DENTAL USE AND CURING AGENT PASTE USED THEREFOR - To suppress a curing agent paste stored in a sealed state in a packaging container from self-curing over a long period of time, provided are a dental alginate impression material as described below, and a curing agent paste to be used for the dental alginate impression material. The dental alginate impression material may includes: a base material paste including as main components: an alginic acid salt (A); and water (B); and a curing agent paste including as main components: a gelling reaction agent (C); a poorly water-soluble organic solvent (D); and a humectant (E). | 08-29-2013 |
20130175300 | KNOCK-TYPE EJECTION CONTAINER - [Problems] To provide an ejection container capable of falling a liquid in drops from the container body without relying on the sense of the fingertips and without affected by a change in the temperature. | 07-11-2013 |
20130071804 | Adhesive for Teeth-Straightening Members - The present invention discloses an adhesive for orthodontic attachments, which contains (A) a polymerizable monomer, (B) a polymerization initiator and (C) a fluorescent dye and, when cured, exhibits a fluorescence spectrum having a peak at 400 to 800 nm. As the polymerization initiator (B), there is preferably used a compound which generates a radical through the transfer of hydrogen between two components, or a compound which generates a radical species through intramolecular cleavage. As the fluorescent dye (C), a coumarin type dye is used preferably. | 03-21-2013 |
20130068132 | KIT FOR ADHESION BETWEEN ALGINATE IMPRESSION MATERIAL FOR DENTAL USE AND IMPRESSION TRAY - Disclosed is a kit for adhesion between an alginate impression material for dental use and an impression tray, which contains: (U) a pretreatment agent that contains (I) 100 parts by mass of an organic solvent that has a solubility parameter (δ) of 17.0-23.0 [(MPa) | 03-21-2013 |
20130032241 | EJECTION DEVICE AND METHOD OF FILLING THE EJECTION DEVICE WITH A MATERIAL - [Problems] To fill a container with a material without applying a high pressure to the material that is to be filled. | 02-07-2013 |
20130032058 | ALGINIC ACID-CONTAINING AQUEOUS COMPOSITION, DENTAL ALGINATE IMPRESSION MATERIAL, AND BASE MATERIAL FOR DENTAL ALGINATE IMPRESSION MATERIAL - Provided is an aqueous composition containing alginic acid or a derivative thereof, the composition having a viscosity retained stably over a long period of time. The alginic acid-containing aqueous composition includes alginic acid or a derivative thereof (A), water (B), and a non-reducing sugar (C). Also provided are a dental alginate impression material and a base material for a dental alginate impression material each using the composition, in which the viscosity of the aqueous composition is stably maintained for a long period. | 02-07-2013 |
20130005846 | ORGANIC/INORGANIC COMPOSITE FILLER AND MANUFACTURING METHOD THEREFOR - Disclosed is an organic/inorganic composite filler that contains: inorganic agglomerated particles comprising agglomerations of inorganic primary particles having a mean diameter between 10 and 1000 nm; an organic resin phase that covers the surface of each inorganic primary particle and binds the inorganic primary particles to each other; and intra-agglomerate voids, formed between the organic resin phase covering the surface of each inorganic primary particle, with a pore volume (here, “pore” refers to holes with diameters between 1 and 500 nm) between 0.01 and 0.30 cm | 01-03-2013 |
20120238658 | DENTAL ADHESIVE COMPOSITION - [Problems] To provide a liquid dental adhesive composition which contains a phosphoric acid-type compound having a hydrogenphosphoric diester group as an acidic group-containing polymerizable monomer and, further, contains polyvalent metal ions, effectively preventing not only the gelation but also the formation of precipitates (cloudiness) during the storage. | 09-20-2012 |
20120160718 | LIQUID MIXING CONTAINER - [Problems] To provide a two-liquid mixing container which prevents two liquids from being mixed together by erroneous operation and does not permit sheet-like contaminants from mixing into the mixed liquid. | 06-28-2012 |
20120121804 | METHOD FOR PRODUCING SILICA-ZIRCONIA COMPOSITE PARTICLES EACH COATED WITH SILICA LAYER - Disclosed is a method for producing silica-zirconia composite oxide particles each coated with a silica layer, which is characterized in that a liquid dispersion of silica-zirconia composite oxide particles is obtained by reacting an alkoxide of silicon and/or a condensable compound derived from the alkoxide with an alkoxide of zirconium and/or a condensable compound derived from the alkoxide in a water-containing solvent that contains acetonitrile so that the reaction liquid is to contain not less than 10% by mass of acetonitrile, and then the surface of each silica-zirconia composite oxide particle is coated with a silica layer by reacting the silica-zirconia composite oxide particles dispersed in the liquid dispersion with an alkoxide of silicon and/or a condensable compound derived from the alkoxide in the liquid dispersion of silica-zirconia composite oxide particles. | 05-17-2012 |
20120059079 | DUAL-CURE CURABLE MATERIAL KIT - A dual-cure curable material kit comprising: (A) a radical-polymerizable monomer component; (B) a photopolymerization initiator component comprising (b1) an α-diketone compound, (b2) an aliphatic tertiary amine compound having a tertiary amino group in which three saturated aliphatic groups are bonded to a nitrogen atom and one of the saturated aliphatic groups has an electron-withdrawing group as a substituent, and (b3) an s-triazine compound having a trihalomethyl group as a substituent, or a diaryliodonium salt compound; and a chemical polymerization initiator component (C) comprising (c1) an organic peroxide, and (c2) an N,N-di(hydroxyalkyl)-p-toluidine compound; which is packed separately at least in two packages so that the component (b2) and the component (b3) of the photopolymerization initiator component (B) are not packed together in a single package and the component (c1) and the component (c2) of the chemical polymerization initiator component (C) are not packed together in a single package. | 03-08-2012 |
20120006709 | CONTAINER - A container which is not bulky at the time of shipping and can be stably stood on a suitable place. The container includes a lid member for closing a take-out opening (brittle portion) of the container body | 01-12-2012 |
20110288195 | DENTAL FILLING/RESTORATION KIT - Provided is a filling/restoring material, including a photopolymerization initiator of a quaternary system formed by combining an α-diketone compound, an aliphatic amine compound, an aromatic amine compound, and a photoacid generator, in which even when the filling/restoring material is filled and cured on a cured layer of a dental adhesive material including a radical-polymerizable monomer having an acidic group, the filling/restoring material undergoes sufficient curing up to a contact interface between the filling/restoring material and the cured layer, thereby providing high adhesive strength stably. Also provided is a dental filling/restoration kit, including: a filling/restoring material including: a polymerizable monomer having no acidic group; a basic inorganic material; and a photopolymerization initiator formed by at least combining: an α-diketone compound; an aliphatic amine compound; an aromatic amine compound; and a photoacid generator; and an adhesive material, which is used for adhesion between a tooth and the filling/restoring material by curing the adhesive material before filling the filling/restoring material, the adhesive material including: a polymerizable monomer including a polymerizable monomer having an acidic group; and a polymerization initiator. | 11-24-2011 |
20110172323 | PHOTOPOLYMERIZABLE COMPOSITIONS - Disclosed are photopolymerizable compositions suitable for uses such as dental composite resins, and that comprise (A) a radical-polymerizable monomer, (B) a photopolymerization initiator that comprises (B1) an α-diketone compound, (B2) a photoacid generating agent, (B3) an aromatic amine compound, and (C) an organic filler containing a phthalate ester fluorescent agent. | 07-14-2011 |
20110098375 | DENTAL ADHESIVE COMPOSITION - [Problems] A dental adhesive composition containing an acid group-containing polymerizable monomer, that can be used as a dental adhesive material or a primer. The dental adhesive composition has excellent durability of adhesion exhibiting further improved adhering strength and durability of adhesion enabling teeth to be more strongly adhered to a composite resin or a prosthetic over extended periods of time. | 04-28-2011 |
20100304961 | DENTAL CHEMICAL POLYMERIZATION CATALYST AND DENTAL CURABLE COMPOSITION CONTAINING THE SAME CATALYST - [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.
| 12-02-2010 |
20100261144 | Dental Curable Composition - [Problems] To provide a chemical polymerization type curable composition which can achieve a very large strength of adhesion even without irradiated with light, and is used in the field of dental therapy. | 10-14-2010 |
20100216907 | ONE-PACKAGE TYPE TOOTH SURFACE COATING MATERIAL - [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. | 08-26-2010 |
20100216096 | DENTAL FILLING/RESTORATION KIT - Provided is a dental filling/restoration kit, in which a pretreatment material and a filling/restoring material can be cured by only one irradiation with light, which enables further improved adhesion between a tooth and the filling/restoring material, which prevents the filling/restoring material from being easily colored, to thereby exhibit its excellent sensuousness. Specifically provided is a dental filling/restoration kit which includes: a filling/restoring material (A) containing 100 parts by mass of a radical-polymerizable monomer (a) containing 3 to 30 parts by mass of a water-soluble radical-polymerizable monomer having no acidic group (a1), a photopolymerization initiator (b), and a filler (c), the filler (c) being contained in an amount of 80 to 2,000 parts by mass relative to 100 parts by mass of the radical-polymerizable monomer (a); and a pretreatment material (B) containing a radical-polymerizable monomer having an acidic group (d) and water (e). | 08-26-2010 |
20100184882 | ADHESIVE FOR TEETH-STRAIGHTENING MEMBERS - The present invention discloses an adhesive for orthodontic attachments, which contains (A) a polymerizable monomer, (B) a polymerization initiator and (C) a fluorescent dye and, when cured, exhibits a fluorescence spectrum having a peak at 400 to 800 nm. As the polymerization initiator (B), there is preferably used a compound which generates a radical through the transfer of hydrogen between two components, or a compound which generates a radical species through intramolecular cleavage. As the fluorescent dye (C), a coumarin type dye is used preferably. | 07-22-2010 |
20100120941 | ADHESIVE AGENT FOR ADHESION BETWEEN ALGINATE IMPRESSION MATERIAL FOR DENTAL APPLICATIONS AND IMPRESSION TRAY, AND KIT COMPRISING THE ADHESIVE AGENT - To improve an adhesive force of an adhesive agent between an impression material and a tray, and to stabilize the adhesive force therebetween, provided is an adhesive agent for the adhesion between an alginate impression material and an impression tray for dental applications, which includes a polyamine compound having two or more amino groups in a molecule and a solvent. | 05-13-2010 |
20090076189 | ONE-PACKAGE DENTAL ADHESIVE COMPOSITION - An adhesive composition comprising (A) a polymerizable monomer component containing not less than 5% by mass of an acidic group-containing polymerizable monomer, (B) a polyvalent metal ion-eluting filler, (C) a volatile organic solvent, and (D) water, wherein the polyvalent metal ion-eluting filler (B) is blended in such an amount that the amount of the polyvalent metal ions eluted out from the filler becomes 1.0 to 7.0 meq per gram of the polymerizable monomer component (A), the volatile organic solvent (C) is blended in an amount in a range of 30 to 150 parts by mass per 100 parts by mass of the polymerizable monomer component (A) and so as to satisfy 20·X parts by mass or more (X is a number representing the amount of elution of the polyvalent metal ions), and the water (D) is blended in an amount of 3 to 30 parts by mass per 100 parts by mass of the polymerizable monomer component (A). The composition maintains a large strength of adhesion to the teeth, can be preserved in the form of one package, and can be used as a material for pre-treating the teeth and as a dental adhesive. | 03-19-2009 |
20080293011 | Tissue Conditioner for Dental Use - A mucosal adjustment material comprising a combination of a powdery material (a) and a liquid material (b), characterized especially in that a noncrosslinked (meth)acrylic polymer powder having a Tg in the range of 0-60° C., e.g., polybutyl methacrylate, is used as the powdery material and a liquid polymer which has a mass-average molecular weight of 1,000-10,000 and in which the content of oligomers having a molecular weight of 500 or lower is 10 mass % or lower is used as the liquid material. Such powdery material and liquid material are kneaded together to prepare a paste, which is applied to a denture base and used as a temporary relining material. This mucosal adjustment material in a paste form is reduced in the amount of ingredients eluted from the material during use in the mouth. In an ordinary use period, the relining material retains its initial flexibility and does not deteriorate the denture base. | 11-27-2008 |
20080217190 | Container - A container which is not bulky at the time of shipping and can be stably stood on a suitable place. The container includes a lid member for closing a take-out opening (brittle portion) of the container body | 09-11-2008 |