Abstract: Disclosed herein are dental temporary filling material and cement formulations comprising a hydrophobic matrix of a hydrophobic material in which an inorganic hardening material and fine, hydrophilic, water-insoluble solid particles are dispersed. The hydrophilic particles serve to conduct water into the hydrophobic matrix to increase the depth and degree of cure in the oral environment as compared to a similar or substantially identical formulation lacking said hydrophilic component.

Abstract: A dental filling material comprising a polybutylene polymer having a molecular weight of about 10,000 to about 100,000 and being viscoelastic at about 20° C. The composition may include other polymeric resins, fillers, plasticizers and other additives typically used in dental materials. The filling material is used for the filing of root canals.

Abstract: A coated medical implant, such as a coated dental component, is provided, the coated medical implant including a substrate surface formed of a material comprising available hydroxyl groups and a silicon oxide coating layer chemisorbed on the substrate surface. A method for the preparation of such coated implants is also provided, the method involving application of the silicon oxide coating layer to the substrate surface by chemical vapor deposition. A dental structure is also provided, which includes a first dental component having a substrate surface formed of a material comprising available hydroxyl groups; a silicon oxide coating layer chemisorbed on the substrate surface; a silane coupling agent overlying and covalently attached to the silicon oxide layer; a dental cement overlying and coupled to the silane coupling agent; and a second dental component having a surface bonded to the dental cement.

Abstract: A method of applying a dental composition to tooth surfaces is provided. The dental composition, comprising polymerizable resin and fluorescing compound, is applied to a tooth surface and cured so that it hardens. The composition is preferably used as a dental sealant that provides a hard, glossy surface finish over a tooth. Upon irradiating the sealant with ultraviolet light, the sealant exhibits a bright fluorescent glow. The sealant reverts immediately to its natural color when it is no longer exposed to the ultraviolet light.

Abstract: The present application relates to a dental primer adhesive system that is capable of being used as either a one-step or two-step self-etch dental primer and is compatible with self-cure composites and dual-cure composites with reduced permeability.

Abstract: The embodiments herein provide a dental and medical biomaterial and its use for sealing and/or filling the tooth and bone cavities. In the embodiments herein, the calcium salt, calcium oxide, calcium silicate, and calcium phosphate compounds are mixed with a water-base solution, and a bioactive phosphate and calcium enriched mixture is prepared. The mixture comprises high concentration of water-soluble calcium and phosphate, and consequently forms hydroxyapatite during and after setting. The dental/medical biomaterial is biocompatible, antibacterial and capable of forming an effective seal against reentrance of microorganisms into the filled cavity. The biomaterial is compatible to handle and set in an aqueous environment and to stimulate soft/hard tissue healing/generation/regeneration.

Abstract: A radically curable polyurethane composite for dental restorations, including provisional restorations, includes polyurethane dimethacrylate prepolymers that have at least one flexible unit within a polyurethane dimethacrylate backbone, and one or more dimethacrylate monomers. Composite materials made with polyurethane dimethacrylate prepolymers of the invention exhibit superior and optimal properties of flexural strength and deflection-at-break relative to conventional dental resin composites. Composite materials of the invention also provide improved melt-resistance in response to the heat of grinding or finishing, thereby improving the fit of restorations made from the composite and preserving the finishing instruments. Methods of treating a tooth using the radically curable polyurethane composite and methods of making the polyurethane dimethacrylate prepolymers with flexible units is also provided. A kit including the radically curable polyurethane composite is also described.

Abstract: This invention describes an adhesive used for bonding dental and medical biomaterials to hard tissues via a molecular bridge formed from calcium-reactive amines and acrylic or methacrylic ester monomers to hard tissues such as enamel, dentin, and bone. This formulation consists of an acid-stable polymerizable compound with multi-functional acrylate cross-linkers. This formula provides good self-adherence without prior preparation of the hard tissue substrates. The formulation can contain chemical- and/or light-activated free-radical initiators.

Abstract: The present invention discloses a cone material in endodontic treatment. The cone material comprises a thermoplastic polyurethane and a filler. The thermoplastic polyurethane is formed by a. isophorone diisocyanate (IPDI) or hexamethylene diisocyanate (HDI), b. poly(butyleneadipate) glycol (PBA) and c. chain extender, wherein the molar ratio of PBA and the diisocyanate is equal to or more than 0.8. By changing the molar composition of the components such as polyol and diisocyanate, physical and chemical property of the disclosed cone material in endodontic treatment can be adjusted.

Abstract: Carbosilane-containing polymers (including oligomers) having the following structural features: greater than one repeat unit; at least four Si-arylene bonds; at least one (meth)acrylate moiety, Si—H moiety, or both; no Si—O bonds; preferably at least four silicon atoms; wherein two silicon atoms are separated by one arylene group in each repeat unit.

Abstract: This invention provides quality and safe chemically-curing type GIC that solves all the disadvantages of light-curing type GIC, and has mechanical strength not lower but higher than that of light-curing type GIC and, in addition to this, the original features and advantages of GIC. The chemically-curing type glass ionomer cement according to the present invention includes porous and particulate hydroxy apatite that has a means diameter of not less than 0.6 ?m and less than 100 ?m and a large specific surface, and is added and mixed into the glass ionomer cement.

Abstract: This invention relates to composite materials for restorative dentistry. More particularly, it relates to new components for dental composites, which impart an attractive combination of good mechanical properties and low shrinkage.

Abstract: The time-release dental adhesive is made as a two-part preparation to increase shelf life. The first part contains three monomers (hydroxyethyl methacrylate [HEMA], triethyleneglycol dimethacrylate [TEG-DMA], and bisphenol A di(ethyl-methacrylate) [BPA-DEMA]), glycerol, a polymerization catalyst, a filler, and a stabilizer. The second part contains the same three monomers listed above, an acrylic resin to increase viscosity, an accelerator, a filler, and a sugar or sugar-based sweetener. When desired for use, the two parts are mixed in a 1:1 ratio by weight. The adhesive cures to a strong, hard bonding agent, but gradually weakens in the presence of moisture to provide a time-release adhesive. The amount of elapsed time before release of the adhesive may be controlled by changing the quantity of sugar or sugar-based sweetener in the adhesive.

Abstract: The invention provides a low polymerization shrinkage dental composition and a polymerizable dental material selected from the group consisting of wax-like dental material that undergoes ring open polymerization. The dental composition is useful as restorative material and for making artificial teeth, dentures, restoratives, crowns and bridges of high strength dental polymeric material.

Abstract: The present invention provides a composition based on calcium aluminate cement (CAC) for application in endodontics, comprising: (a) a cement—Al2O3 (>68.5 wt %), CaO (<31 wt %), SiO2 (0.3-0.8 wt %), MgO (0.4-0.5 wt %), and Fe2O3 (<0.3 wt %); (b) additives: dispersant at a content of 0.4 to 0.8% by weight of the cement, a plasticizer at a content of 2.0 to 4.0% by weight of the cement, and a radiopaque agent at a content of 20 to 35% by weight of the cement; and (c) water, wherein water/cement ratio lies in the range of 0.19-0.24 in the presence of additives. Cementitious product obtained thereof, after setting time, is also disclosed and characterized by enhanced properties when compared to the most used commercial repair cement, MTA.

Abstract: This invention describes an adhesive used for bonding dental and medical biomaterials to hard tissues via a molecular bridge formed from calcium-reactive amines and acrylic or methacrylic ester monomers to hard tissues such as enamel, dentin, and bone. This formulation consists of an acid-stable polymerizable compound with multi-functional acrylate cross-linkers. This formula provides good self-adherence without prior preparation of the hard tissue substrates. The formulation can contain chemical- and/or light-activated free-radical initiators.

Abstract: To provide a dental root canal-filling composition which is generally formed in a point shape, has high strength, is properly deformed so as to afford easy operativity for filling in a root canal, has improved wetting and adhering properties with a root canal-filling sealer and is less deteriored by sterilization or chemical disinfection, the dental root canal-filling composition comprises one or more kinds of polyolefin resins selected from the group of polyethylene, polypropylene, and a copolymer of polyethylene and polypropylene, a styrene block copolymer, one or more kinds of thermoplastic resins selected from the group of ester gum, rosin, an alicyclic saturated hydrocarbon resin, a terpene resin, and an aliphatic petroleum resin, and one or more kinds of inorganic fillers selected from the group of zinc oxide, barium sulfate, zirconium oxide, titanium oxide, ytterbium fluoride, a barium glass, and an aluminosilicate glass.

Abstract: Disclosed are compositions and methods of using such compositions for inhibiting matrix metalloproteinase activity in dental tissue. The compositions, methods and uses may prevent degradation of the bonding between restorative materials and dental tissues, thereby increasing durability and longevity of the restorative material-dental tissue bonds. For example, the compositions, methods, and uses of the present invention may be used for treating carious dental tissue such as by the creation of dental fillings, crowns, bridges, among other techniques, as well as the creation of esthetic laminate restorations.

Abstract: A dental adhesive composition comprising (i) at least one non-acidic polymerizable monomer having at least one ethylenically unsaturated group, (ii) optionally one or more acidic compounds, (iii) at least one photoinitiator, (iv) at least one solvent, and (v) about 0-40% by weight of one or more fillers; wherein the weight ratio of non-acidic polymerizable monomers/acidic compounds in the adhesive composition is more than about 4.5; the viscosity of the adhesive composition is less than about 350 centipoise (cP) at 25° C.; and the adhesive composition excluding solvent and filler has an acid number of less than about 0.75 mmol NaOH/g. The dental adhesive composition is used with a dental primer composition, which may be provided together in a kit.

Abstract: A method of preparing teeth for the adhesion of a component includes applying to at least one tooth a solution of liquid phosphoric acid and an abrasive such as pumice, removing the solution, and applying an adhesive for placing a component on the teeth.

Abstract: To provide a dental hydraulic temporary sealing material composition setting faster than conventional composition, excellent adhesiveness with cavity, and extremely good operativity of filling in an oral cavity, the dental hydraulic temporary sealing material composition includes calcium sulfate, a vinyl acetate resin, an inorganic filler, alcohols having a boiling point of 110° C. or more, and a nonionic surfactant, whereby water on a cavity can adhere, without being repelled, to a paste surface due to hydrophilic effect between an organic solvent having proper hydrophilicity and the nonionic surfactant, the water can permeate and diffuse rapidly and stably through the inside of the paste by the hydrophilic effect so as to set faster than conventional composition, and since the hydrophilic effect is effective for adhesiveness with cavity, filling property in an oral cavity becomes extremely good.

Abstract: The present invention is directed to dental compositions that can be used as adhesives for bonding a dental material to a dental structure surface and/or as a dental restorative material. The dental composition is preferably applied to a dental structure surface under conditions effective to etch the dental structure surface.

Abstract: Dental composition having an improved light and thermal stability, including a mixture of at least a polymerizable resin, at least a polymerizable monomer, at least a polymerization initiator and/or a sensitizer and stabilizer, and at least an organic and/or inorganic filler and pigments in a content of 0 to 90 percent and at least one of the stable radicals.

Abstract: Hardenable and hardened dental compositions, and articles including such hardenable and hardened compositions, are provided. The hardenable dental compositions include a thermally labile component including one or more thermally labile groups. Upon heating, the hardened compositions are useful, for example, for reducing the bond strength of orthodontic appliances adhered to tooth structures with the hardened compositions.

Abstract: The present application relates to a polymerizable dental primer/adhesive system comprising a primer component having a relatively hydrophilic monomer component in an amount that renders the system relatively hydrophilic before polymerization of the system and capable of penetrating a prepared dental surface such as etched tooth dentin or enamel, and a multi-functional cross-linking agent in an amount that renders the system relatively hydrophobic after polymerization. A polymerizable hydrophobic monomer component is also included in the primer. The inclusion of said hydrophobic polymerizable monomer and said multi-functional cross-linking agent improves the long term stability or durability of the polymerized primer system to the dental restoration and to the tooth, dentin, enamel and other dental surfaces. An additional hydrophobic resin can also be employed with the primer adhesive system.

Abstract: Two-part and one-part self-etching dental adhesives containing polymerizable acidic monomers. Methods include one-coat application without need for tooth etching.

Abstract: A dental restorative composition comprises: (A) polymerizable monomer(s) selected from hydroxyethyl (meth)acrylate phosphate, hydroxypropyl (meth)acrylate phosphate, hydroxybutyl (meth)acrylate phosphate, dipentaerythritol penta(meth)acrylate phosphate, pentaerythritol tri(meth)acrylate phosphate, phenyl (meth)acryloxyethyl phosphate, and a combination thereof; (B) polymerizable monomer(s) having a molecular weight of 100-250, at least one hydroxyl group, and at least one ethylenically unsaturated group; (C) polymerizable monomer(s) having a molecular weight of 270-900, at least two ethylenically unsaturated groups and no acidic functional group; (D) photo-initiator(s); and (E) filler(s) each having a mean particle size of more than 0.005 microns and less than 70 microns. The weight ratio of (A+B):(C) ranges from 30:70 to 90:10, and the composition has a shear bond strength of at least 10 MPa to both dentin and enamel after being light-cured.

Abstract: Disclosed is a dental composition comprising 0.01 to 10 parts by weight of at least one kind of (a) a visible light-photopolymerization catalyst compound and one or more kinds of (b) di(meth)acrylate compounds represented by the general formula (I): wherein R1 and R2 each independently represent hydrogen or a methyl group, and a repeating unit number n of an ethylene oxide group is from 9 to 50.

Abstract: The invention relates to a dental composition comprising a) carbosilane containing component (A) comprising at least 1 Si-Aryl bond, at least 1 silicon atom, at least 2 Si—H functional moieties, no Si-Oxygen bond, b) unsaturated component (131), and/or epoxy component (132), c) initiator (C), d) optionally filler (D) and e) optionally component (E) selected from modifiers, dyes, pigments, thixotropic agents, flow improvers, polymeric thickeners, surfactants, odorous substances, diluting agent(s) and flavorings.

Abstract: The invention features a dental composition containing a fluorescent organic pigment, e.g. a hydroxyl substituted aryl guanamine an or a fluorescent compound encapsulated in a thermo plastic or thermo set polymer, in an amount that provides the composition with fluorescence resembling that of natural teeth.

Abstract: Fiber-reinforced composite posts are produced having high strength and high radiopacity. In a method of manufacturing the fiber-reinforced composite posts, fibers are pulled through filled resin and heat is applied at various steps in the process to provide high strength and optimal radiopacity.

Abstract: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.

Abstract: The embodiments herein provide a dental and medical biomaterial and its use for sealing and/or filling the tooth and bone cavities. In the embodiments herein, the calcium salt, calcium oxide, calcium silicate, and calcium phosphate compounds are mixed with a water-base solution, and a bioactive phosphate and calcium enriched mixture is prepared. The mixture comprises high concentration of water-soluble calcium and phosphate, and consequently forms hydroxyapatite during and after setting. The dental/medical biomaterial is biocompatible, antibacterial and capable of forming an effective seal against reentrance of microorganisms into the filled cavity. The biomaterial is compatible to handle and set in an aqueous environment and to stimulate soft/hard tissue healing/generation/regeneration.

Abstract: Methods for making dental crowns, bridges, inlays, onlays, veneers, fillings, and other restorations are provided. The methods involve using a two-phase light curing (TPLC) material. Preferably, the TPLC material used to form the dental restoration comprises a blend of polymerizable compounds; photopolymerization systems (a) and (b), and particulate filler materials (a) and (b). In a first light-curing step, curing light having a wavelength of greater than 420 nm is used to activate system (a). In a second light-curing step, curing light having a wavelength of less than 420 nm is used to activate system (b). The two step light-curing method is efficient and allows the dentist to make restorations having high mechanical strength and pleasing aesthetics.

Abstract: Dental compositions and methods of treating an oral surface are described. The dental compositions comprise at least one biphenyl di(meth)acrylate monomer.

Abstract: A self etching, dental cement composition is provided having the advantage of not requiring a separate etching and bonding step. The cement composition comprises a polymerizable (meth)acrylate trimellitic acid/anhydride, a phosphoric acid (meth)acrylate, a hydroxyalkyl(meth)acrylate, copolymerizable multi-functional (meth)acrylate monomers, a diluent, fillers, and a curing system. These cement compositions are prepared as a two-paste system that is combined prior to use.

Abstract: A dental composite containing a nanoparticulate filler has a resin matrix with structural element (Ib) R is an open-chain and/or cyclic alkylene, arylene, or alkylene arylene with 1-10 C, optionally modified by oxygen, sulfur, carboxyl or amino, R1 is an open-chain and/or cyclic alkylene, arylene, or alkylene arylene with 1-10 C, optionally modified by oxygen, sulfur, carboxyl or amino; R? is an open-chain and/or cyclic alkyl, alkenyl, aryl, alkyl aryl, or aryl alkyl with 1-20 C; B and B? are identical or different and are a straight-chain or branched organically polymerizable group with (meth)acrylate residue; R3 are identical or different and a bond to another Si or hydrogen, alkyl with 1-10 C, or a bond to another metal atom; a is 1 or 2 and b is 0 or 1.

Abstract: The present invention discloses an endodontic sealer which comprises a urethane-monoacrylate oligomer, a diluting monomer, at least one photo-initiator, at least one thermal-initiator, and a filler, wherein the urethane-monoacrylate oligomer is obtained by firstly reacting the acrylate with the diisocyanate to form an intermediate with only one isocyanate group, and then reacting the intermediate with the polyol to form the desired urethane-monoacrylate oligomer.

Abstract: A therapeutic agent is provided for periodontal diseases by which a biofilm formed inside hard tissues in an oral cavity is removed and the hard tissues are re-calcified. The biofilm formed in a fine fracture within contaminated tooth hard tissues is chemically dissolved and removed and calcium ions contained in the biofilm are precipitated as a calcium salt under an alkali condition so that the anatomically present fine fracture is sealed by the precipitated salt.

Abstract: The invention provides compositions that include macromers and visible light-activated polymerization initiators, and methods for forming a matrix using these compositions in conjunction with a light source that emits light primarily in the visible light spectrum.

Abstract: A dental adhesive composition comprising (i) at least one non-acidic polymerizable monomer having at least one ethylenically unsaturated group, (ii) optionally one or more acidic compounds, (iii) at least one photoinitiator, (iv) at least one solvent, and (v) about 0-40% by weight of one or more fillers; wherein the weight ratio of non-acidic polymerizable monomers/acidic compounds in the adhesive composition is more than about 4.5; the viscosity of the adhesive composition is less than about 350 centipoise (cP) at 25° C.; and the adhesive composition excluding solvent and filler has an acid number of less than about 0.75 mmol NaOH/g. The dental adhesive composition is used with a dental primer composition, which may be provided together in a kit.

Abstract: A dental restorative composition comprising: (A) polymerizable monomer(s) having at least one phosphorus-containing acidic moiety and at least one ethylenically unsaturated group; (B) polymerizable monomer(s) having a molecular weight of 100-250, at least one hydroxyl group, and at least one ethylenically unsaturated group; (C) polymerizable monomer(s) having a molecular weight of 270-900, at least two ethylenically unsaturated groups and no acidic functional group; (D) photo-initiator(s); and (E) filler(s) each having a mean particle size of more than 0.005 microns and less than 70 microns. The weight ratio of (A+B):(C) ranges from 30:70 to 90:10, the concentration of (A) is 10-50 wt. %, the concentration of (B) is 15-60 wt. %, and the composition has a shear bond strength of at least 10 MPa to both dentin and enamel. Also provided is a method for filling a dental cavity with the composition without first treating the dental cavity with an etchant, a primer and/or an adhesive.

Abstract: The present invention is a bioactive endodontic material and its use for filling the tooth and bone cavities. The present invention, by using calcium salt, calcium oxide, calcium silicate, and calcium phosphate compounds as essential constituents, and mixing them with a water base solution, prepares a bioactive calcium and phosphate enriched material. The enriched material (cement) comprises high concentration of water-soluble calcium and phosphate, and immediately forms hydroxyapatite during and after setting. The cement is biocompatible, antibacterial, capable to form an effective seal against reentrance of microorganisms into the filled cavity, compatible to handle and set in an aqueous environment, and able to stimulate hard tissue healing.

Abstract: A material contains at least a polymerizable N,O-functionalized acrylic acid hydroxyamide of the Formula (I) in which A is an n+m-valent linear or branched aliphatic C1 to C50 radical, in which the carbon chain can be interrupted by O, S, —CO—O—, CO—NH, O—CO—NH or NH—CO—NH, an n+m-valent aromatic C6 to C18 radical or an n+m-valent cycloaliphatic or heterocyclic C3 to C18 radical, wherein the radicals can carry one or more substituents, Y is not present, or is O, S, an ester, amide or urethane group, R1 is hydrogen, an aliphatic C1 to C20 alkyl or C3 to C8 cycloalkyl radical which can carry one or more substituents, R2 is H or a C1 to C10 alkyl radical, R3 is not present or is a C1 to C16 alkylene radical which can be interrupted by O, HG is not present, is —COOH, —P?O(OH)2; —P?O(OH)(OR4); —O—P?O(OH)2, —SO2OH or —O—P?O(OH)(OR4), R4 is a C1 to C15 alkyl radical, phenyl or benzyl radical and n is a number from 1 to 5 and m a number from 0 to 3.

Abstract: Slip based on a polyreactive binder, polymerization initiator and filler, which contains (A) 5-65 wt.-% polymerizable binder, (B) 0.001-1.0 wt.-% photoinitiator and (C) 35-90 wt.-% surface-modified ceramic and/or glass ceramic particles relative to the overall mass of the slip, and process for the preparation of ceramic mouldings by rapid prototyping processes using the slip.

Abstract: Etching compositions, curable compositions, packaged products and methods of use for the treatment of bone substrate, i.e., teeth, are described. The etch compositions generally include a gelling agent, an inorganic acid, an organic acid and either a solvent, a surfactant or mixtures thereof. The curable composites include reactive monomers and crosslinking agents that are effective to adhere to the surface of the treated substrate. The methods of the invention provide the ability to modify a bone or bone-like surface so that the curable composition, such as an adhesive resin, can be used in combination with a restorative material.

Abstract: The invention relates to a dental composition comprising a) carbosilane containing component (A) comprising at least 1 Si-Aryl bond, at least 1 silicon atom, at least 1 unsaturated moiety, no Si-Oxygen bond, b) initiator (B), c) optionally filler (C) and d) optionally component (D) selected from modifiers, dyes, pigments, thixotropic agents, flow improvers, polymeric thickeners, surfactants, odorous substances, diluting agent(s) and flavouring.

Abstract: A self-etching, dental cement composition is provided having the advantage of not requiring a separate etching and bonding step.

Abstract: The invention describes polymerisable compositions which contain higher molecular weight di(meth)acrylates, curing agents and X-ray-opacifying additives, which result in fully cured, readily removable materials and which are especially suitable for filling and sealing root canals.

Abstract: A white, substantially non-iron containing dental material formed from Portland cement. The material may be a dental cement, dental restorative or the like.