Abstract: The present application provides dental compositions, and methods of making and using dental compositions that include a calcium and phosphorus releasing glass. Such dental compositions can be useful for delivering ions to the oral environment.

Abstract: The invention relates to glass-ceramics based on the lithium disilicate system which can be mechanically machined easily in an intermediate step of crystallization and, after complete crystallization, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.

Abstract: A dental restorative composite and a method of curing the composite are disclosed in which the composite includes a polymerizable organic resin, a radiation activated initiator having an activation wavelength, an inert filler; and luminescent crystals, wherein the luminescent crystals emit radiation at a predetermined wavelength matching the initiator activation wavelength when the luminescent crystals are irradiated with radiation having a wavelength longer than the activation wavelength, the luminescent crystals being up-converting particles that result in those particles emitting radiation at a wavelength that initiates curing.

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: A glass filler manufacturing process and product which enable the manufacture of dental composite and dental cement products having superior product stability and also having superior physical properties. The process makes use of barium glass filler and strontium glass filler, which have high-radiopacity properties but could not previously be used for dental composites and dental cement. By simply coating the surface of the barium glass or strontium glass filler with an oxide having acid-resistance properties, and then following with a heat-treatment process, a suitable dental composite can be produced.

Abstract: Described are compositions and methods for the removal of zinc-oxide eugenol-based temporary cements or root canal filling materials from a variety of surfaces including surfaces inside the oral cavity, such as teeth, as well as surfaces of objects located outside of the oral cavity, such as instruments and prostheses. In certain compositions, the resin-dentin bond between permanent cements and collagen-containing surfaces can be increased. The compositions are non-toxic, can be used inside the oral cavity, and do not require special disposal procedures.

Abstract: The invention relates to a radically polymerizable monomer of formula (I) wherein W1 and W2 in each case independently represent H or X—R—Y—PG, wherein at least one of W1 and W2 represents X—R—Y—PG, X in each case independently is missing or represents an ether, ester, amide, urethane or urea group, Y in each case independently is missing or represents an ether, ester, amide, urethane or urea group, R in each case independently is missing or represents a C1-C16 alkylene radical which can be interrupted by one or more O atoms, wherein R can be missing only if X and/or Y is simultaneously also missing, and PG in each case independently represents a cyclic, ring-opening polymerizable group, a, b, c and d independently of each other can take the values 3 to 10.

Abstract: A composition for obtaining dental impressions and methods of using and making the same are disclosed. The compositions can include curable base compositions and surfactant systems. The surfactant system can include (i) 0.5 to 3 wt-% of a first surfactant comprising end-capped polyoxyethylene alkyl ether, end-capped polyoxypropylene alkyl ether, end-capped polyoxyethylene-polyoxypropylene alkyl ether or mixtures thereof, (ii) 0.5 to 3 wt-% of a second surfactant, selected from the group of non-ionic fluorosurfactants, (iii) 0 to 3 wt-% of a third surfactant, selected from the group of silicone surfactants, wherein the total quantity of first, second and third surfactant is from 1.5 to 6 wt-%. The mass ratio of the first surfactant to the second surfactant can be 1.4 or less when the content of the third surfactant is less than 0.5 wt-% and the total quantity of first and second surfactant is 2 wt-% or less.

Abstract: Improvedly storage stable dental compositions useful for the preparation of dental prostheses and for dental restoration containing a uniquely pretreated dental filler material.

Abstract: A calcium phosphate composition comprising tetracalcium phosphate particles (A), calcium hydrogen phosphate particles (B) and at least one kind of inorganic particles (C) selected from silica particles or titania particles, wherein the mixing ratio (A/B) of (A) to (B) is from 45/55 to 55/45 in molar ratio, the inorganic particles (C) have an average particle diameter of from 0.002 to 0.5 ?m, and the inorganic particles (C) are contained in an amount of 0.1 to 20 parts by weight based on 100 parts by weight of (A) and (B) in total. Thereby provided is a calcium phosphate composition such that when it is used as a material for bone repair, a formed bone has high mechanical strength and a high bone replacement rate is achieved.

Abstract: The present invention relates to a galliated calcium-phosphate biomaterial comprising a gallium-doped phosphocalcic compound of formula (I): Ca(10.5-1.5x)Gax(PO4)7??(I) wherein 0<x<1 and the salts, hydrates and mixtures thereof and/or a calcium deficient apatite structure with in particular a (Ca+Ga)/P molar ratio in the range of 1.3 to 1.67, and a gallium content up to 4.5% by weight. It also relates to processes of preparation of such materials and uses thereof, in particular as dental or bony implants. It further relates to a kit comprising a galliated calcium-phosphate biomaterial in combination with a fluid component. It finally relates to methods of use of the galliated calcium-phosphate biomaterial, notably for III) ions increase radio-opacity after bone implantation and can be released for inhibiting bone resorption.

Abstract: The present invention relates to a dental material comprising, relative to the total mass of the material: (a) 1 to 95 wt.-% of at least one polymerizable N,O-functionalized acrylic acid hydroxamide, (b) 0 to 70 wt.-% diluent monomer, (c) 0 to 70 wt.-%, cross-linker monomer, (d) 0.1 to 5.0 wt.-% polymerization initiator (e) 0 to 80 wt.-% filler, (f) 0 to 70 wt.-% solvent, and (g) 0 to 70 wt.-% adhesive monomer.

Abstract: 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 (?) of 17.0-23.0 [(MPa)1/2] and (II) 0.1-30 parts by mass of inorganic particles having an average particle diameter of 10 ?m or less; and (V1) an adhesive that contains (I) a polyamine compound that contains two or more amino groups in each molecule and (III) a lower alcohol solvent, or (V2) an adhesive that is obtained by mixing (I) a polyamine compound that contains two or more amino groups in each molecule, (II) an organic peroxide and (III) a lower alcohol solvent.

Abstract: The present invention is directed to implantable compositions comprising substantially spherical bioactive glass particles.

Abstract: Fluoride varnish compositions for temporary application and adhesion to a person's teeth. The composition includes a carrier comprising a resin and an adhesion promoting agent comprising an alkyl phosphoric acid. A fluoride ion source (e.g., a fluoride salt such as sodium fluoride) is dispersed within the carrier so as to provide biologically available fluoride ions to the tooth tissue being treated. The composition adheres only temporarily to tooth tissue (e.g., for a period of at least about 4 minutes, but not more than about 1 year), after which the composition spontaneously wears away as a natural result of the action of the tongue, saliva and/or other factors.

Abstract: Bone cements and methods provided include a bone cement composition having collective attributes and properties desirable for initial fixation as well as interventional applications. Compositions include an amount of Portland cement and an amount of calcium sulfate.

Abstract: The invention describes a dental article comprising zirconium oxide and at least two different coloring substances A and B, substance A showing a light emission in the range of about 470 nm to about 510 nm and substance B showing a light absorption in the range from about 520 nm to about 750 nm. The invention also relates to different processes of producing the dental article e.g. by a process comprising a casting step, a pressing step, or an infiltration step and to the use of certain compositions containing either substance A or substance B for producing such a dental article.

Abstract: The invention refers to a method for producing a dental restoration comprising a lithium silicate glass or glass ceramic as well as a dental restoration inself. The invention further refers to a ingot with the same composition having a defined strength.

Abstract: Colorless dental compositions for restoring the enamel layer of a tooth are disclosed. The colorless enamel compositions are combined with pigmented dentin compositions to provide a true color match and natural esthetics. Methods that utilize the compositions in placement/build-up techniques in direct restorations are also disclosed.

Abstract: The subject of the present invention relates to obtaining a zirconia sintered body having excellent in both properties of a translucency and a mechanical strength. The present invention relates to obtaining a high-strength zirconia sintered body having a translucency of an in-line transmission of 50% or more at a sample thickness of 1 mm for visible light at a wavelength of 600 nm and an average flexural strength of 300 MPa or more by subjecting a zirconia primary sintered body having an average grain size of 1 ?m or less and a relative density of 92% or more and the crystal phase composed of cubic crystals only to HIP treatment at a temperature of 1,250° C. to 1,600° C. and a pressure of at least 50 MPa. The primary sintered body is obtained by maintaining a molded body of a zirconia powder containing 7 mol % to 30 mol % of yttria at 1,100° C. to 1,300° C. for at least 5 hrs or by heating the molded body at a high rate of temperature rise of 500° C./hr or more.

Abstract: The present invention relates to a solid composition comprising: a calcium silicate powder, a set accelerator in the form of a powder, a reinforcing filler in a solid form, a radio-opacifying agent in a solid form, at least one complementary ingredient selected from solid fibers or solid porous fillers, optionally a water-reducing agent in a solid form, and optionally solid pigments. The present invention also relates to a kit of parts for the preparation of a composition suitable for use in dentistry comprising in a first container a solid phase including the solid composition according to the invention, and in a second container an aqueous phase. The present invention also relates to a kit of parts for the preparation of a composition suitable for use in dentistry comprising a container, said container comprising at least two cells, the first cell comprising a solid phase including the solid composition of the invention and the second cell comprising an aqueous phase.

Abstract: The present invention relates to a self-neutralising type of calcium hydroxide (Ca(OH)2) preparation for use in dentistry. More specifically, it relates to a self-neutralising type of calcium hydroxide preparation which is formulated in such a way that it can be used in dentistry by being mixed, in a cement clinker, with an active siliceous substance, bismuth oxide (Bi2O5), silica, sulphur trioxide and aluminum oxide/ferric oxide and the like. One aspect of the present invention provides a self-neutralising type of calcium hydroxide preparation comprising an active siliceous substance and bismuth oxide, and this self-neutralising type of calcium hydroxide preparation is characterized in that it comprises silica, sulphur trioxide and aluminum oxide/ferric oxide.

Abstract: The invention relates to compositions based on Ce-stabilized ZrO2, and single- and multi-colored blanks made from oxide ceramics, and a process for their preparation, in which oxide ceramic powder is coated with a coloring substance, the coated powders are preferably graded and at least one colored powder is filled into a compression mould, the colored powder or powders are compressed to produce a shaped body, and the compressed shaped body is sintered to produce a blank, and to the use of these blanks for the preparation of dental restorations. The compositions exhibit high fracture toughness and high flexural strength.

Abstract: Calcium phosphate particles are described comprising a surface treatment wherein the surface treatment comprises at least one sugar alcohol, at least one glycerophosphoric acid compound, or mixture thereof. Also described are various oral care compositions comprising surface treated calcium phosphate particles and methods of surface treating calcium phosphate particles.

Abstract: 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 ?m or smaller in an organic matrix and has an average particle diameter of 5.0-50 ?m, and 10-60 mass % of (C) a third component, i.e., an inorganic filler having an average particle diameter of 1.1-5.0 ?m, 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.

Abstract: The present invention provides a bone cement formula having a powder component and a setting liquid component, wherein the powder component includes a calcium sulfate source and a calcium phosphate source with a weight ratio of the calcium sulfate source less than 65%, based on the total weight of the calcium sulfate source and the calcium phosphate source, and the setting liquid component comprises ammonium ion (NH4+) in a concentration of about 0.5 M to 4 M, wherein the calcium phosphate source includes tetracalcium phosphate (TTCP) and dicalcium phosphate in a molar ratio of TTCP to dicalcium phosphate of about 0.5 to about 2.5, and the calcium sulfate source is calcium sulfate hemihydrate (CSH), calcium sulfate dehydrate (CSD), or anhydrous calcium sulfate.

Abstract: The invention relates to the use of a sintered body obtained by subjecting a primary sintered body having a relative density of 95% or higher produced from a fine yttria-containing zirconia powder to HIP sintering at a temperature of 1,200-1,600° C. and a pressure of 50 MPa or higher. This sintered body is either a sintered body which has a total light transmittance, as measured at a thickness of 0.5 mm, of 43% or higher and a three-point bending strength of 1,700 MPa or higher or a zirconia sintered body which has a total light transmittance, as measured at a thickness of 1 mm, of 40% or higher and a three-point bending strength of 500 MPa or higher and which combines high strength and total light transmission.

Abstract: Lithium silicate glass ceramics and glasses are described which can advantageously be applied to zirconium oxide ceramics in particular by pressing-on in the viscous state and form a solid bond with these.

Abstract: The invention relates to a solution to be selectively applied to individual parts of the surface of dental ceramic(s) and a process for using the solution in the dental field. More specifically the invention relates to a solution comprising a) a solvent, b) an effect agent, and c) a complexing agent. The invention also relates to a kit comprising the solution and to a method of using the solution for selectively treating of parts of the surface dental ceramic(s). The invention also relates to a application instrument suitable for applying the solution.

Abstract: The present invention provides a process for the preparation of a silicate and carbonate co-substituted calcium phosphate material. The process comprises the steps of: forming a silicon and optionally carbon-containing calcium phosphate precipitate by an aqueous precipitation method involving preparing an aqueous solution comprising phosphate ions, silicate ions, calcium ions and optionally carbonate ions, wherein the ratio of Ca/P and of Ca/(P+Si) in the solution is maintained above approximately 1.67; and heating the precipitate in an atmosphere comprising carbon and oxygen to form a silicate and carbonate co-substituted calcium phosphate material. The present invention also provides a synthetic carbonate and silicate co-substituted hydroxyapatite material, as well as a biomedical material.

Abstract: A substance that sets in a relatively short time for use in general dentistry and in endodontics to replace natural tooth material, the substance comprising untreated mineral trioxide aggregate and milled mineral trioxide aggregate, or comprising untreated mineral trioxide aggregate, milled mineral trioxide aggregate and water. A method of making a substance that sets in a relatively short time for use in general dentistry and in endodontics to replace natural tooth material, the method comprising milling by high shear and impact impingement of particles using high pressure homogenization.

Abstract: A calcium phosphate cement composition kit comprising (A) a powdery agent comprising 100 parts by mass of calcium phosphate powder, and 5-50 parts by mass of a powdery apatite/collagen composite, and (B) an aqueous blending liquid; a paste-like mixture being obtained by blending the powdery agent with the aqueous blending liquid, in such a proportion that the aqueous blending liquid is 15-50 parts by mass per the total amount (100 parts by mass) of the calcium phosphate powder and the powdery apatite/collagen composite, and filled in a predetermined prosthetic site in a human body to form a hardened calcium phosphate/collagen composite.

Abstract: Dental articles are produced using relatively low sintering temperatures to achieve high density dental articles exhibiting strengths equal to and greater than about 700 MPa. Ceramic powders comprised of nanoparticulate crystallites are used to manufacture dental articles. The ceramic powders may include sintering agents, binders and other similar additives to aid in the processing of the ceramic powder into a dental article. The ceramic powders may be processed into dental articles using various methods including, but not limited to, injection molding, gel-casting, slip casting, or electroforming, hand, cad/camming and other various rapid prototyping methods. The ceramic powder may be formed into a suspension, pellet, feedstock material or a pre-sintered blank prior to forming into the dental article.

Abstract: A process for the synthesis of a bioceramic composition comprising calcium phosphosilicate (CPS, Ca10(PO4)4(SiO4)2), the process comprising: providing calcium or a calcium-containing compound, a phosphorus-containing compound and a silicon-containing compound; and forming a precipitate by reacting the compounds in an aqueous phase at an alkali pH.

Abstract: A substance that sets in a relatively short time for use in general dentistry and in endodontics to replace natural tooth material, the substance comprising untreated mineral trioxide aggregate and milled mineral trioxide aggregate, or comprising untreated mineral trioxide aggregate, milled mineral trioxide aggregate and water. A method of making a substance that sets in a relatively short time for use in general dentistry and in endodontics to replace natural tooth material, the method comprising milling by high shear and impact impingement of particles using high pressure homogenization. A method for use in general dentistry and in endodontics to replace natural tooth material.

Abstract: The present application discloses a fast-setting mineral trioxide aggregate (MTA) with fluoride release for practical treatment of diseases in teeth and bone, e.g. for caries treatment and/or prevention. The cariostatic MTA contain calcia-silica-alumina cement with moderately increased tricalcium aluminate content allowing high calcium hydroxide release. The MTA composition support remineralization and biomineralization, and it is suitable for stimulation of hard tissue regeneration. MTA embodiments contain superplasticizer and nanosilicate for improved mechanical properties. The MTA compositions include optional radiocontrast and nano-enriched leachable fluorine, nitrate, strontium, and phosphate. The fast-setting MTA paste exhibits flow-to-clay-like consistency, which allows new practical applications including cavity lining, temporary restoration, bonding, and cementations in one MTA embodiment.

Abstract: The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes phosphorus and a divalent cation. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment.

Abstract: Non-aqueous hydraulic cement compositions comprise a non-aqueous mixture of a powder composition and a non-aqueous water-miscible liquid. In one embodiment, powder composition is a Brushite or Monetite-forming calcium phosphate powder composition. In another embodiment, the powder composition comprises porous ?-tricalcium phosphate (?-TCP) granules and at least one additional calcium phosphate powder. In another embodiment, the powder composition comprises calcium silicate powder. In a further embodiment, the powder composition comprises calcium aluminate powder. In another embodiment, the powder composition is a cement composition and comprises nanopowders having a grain size of less than 1 micron. Hardened cements are formed from such hydraulic cement compositions, and methods of producing hardened cements, kits, and articles of manufacture employ such hydraulic cement compositions.

Abstract: An indicator is useful for detecting pressure points on a denture. The indicator is made of a composition that easily adheres to oral mucosa, has a proper viscosity in an oral cavity environment, can be properly spread between an oral mucosa surface and a denture base, and easily specifies an affected part. The composition includes a fatty acid ester having a melting point of 30 to 50° C., a water-soluble high polymer, and a metal oxide. Preferably, the fatty acid is 40 to 95% by weight of the composition, the water-soluble high polymer is 1 to 59% by weight of the composition, and the metal oxide is 0.1 to 50% by weight of the composition.

Abstract: 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.

Abstract: The invention provides a dental gypsum-bonded investment material powder which can inhibit air bubbles from being generated in a mixed material, only by being mixed with water without using any special device or tool, and is easily mixed with the water. A specific siloxane is blended at a specific amount in relation to the dental gypsum-bonded investment material powder which includes an anionic surfactant and is excellent in a mold releasing action. In other words, the dental gypsum-bonded investment material powder is structured such as to have 0.001 to 0.2 weight % anionic surfactant, and 0.00001 to 0.0005 weight % cyclic siloxane having 3 to 10 SiO(CH3)2 units.

Abstract: The present invention relates in a first aspect to an adhesion material for use in an individual containing encapsulated phase-change material. In particular, the adhesion material is for cosmetical or medicinal use in the body of an individual. The adhesion material contains encapsulated phase-change material having preferably a phase transition temperature above 40° C., like above 55° C. The adhesion material is particularly useful for adhering elements, like dental restorations, e.g. crowns or bridge, or brackets on elements in the body of an individual, like teeth or implants. That is, the adhesion material is particularly useful for adhering material in dental applications. In another aspect, a method is provided allowing removing a bracket, a crown or bridge, from implants, abutments or teeth. Furthermore, dental implant restoration systems and kits for permanent fixation of implants allowing improved removal thereof are provided.

Abstract: Rapid setting high strength calcium phosphate cements and methods of using the same are provided. Aspects of the cements include fine and coarse calcium phosphate particulate reactants and a cyclodextrin which, upon combination with a setting fluid, produce a flowable composition that rapidly sets into a high strength product. The flowable compositions find use in a variety of different applications, including the repair of hard tissue defects, e.g., bone defects such as fractures.

Abstract: A method of coating an article includes the steps of providing a powder comprising coated particles; and spray coating the powder onto a surface of the article to form a composite coating. The spray coating may be carried out by combustion spraying, gas plasma spraying, including vacuum plasma spraying (VPS), and cold spraying. The article may be an implant for surgical or dental use. The powder may include particles of metal coated calcium phosphates, especially metal coated hydroxyapatite. The particles may include bioactive agents.

Abstract: Disclosed is a dental cement composition made up of ingredients comprising the nanoparticles of dicalcium and tricalcium silicate, bismuth oxide, gypsum, zeolite and strontium carbonate. The dental cement can also be used as bone cement, pulpotomy agent, pulp capping material, dental implant material, perforation repair material, and root-end filling material.

Abstract: Nanoparticulate material containing a matrix and embedded therein a radiopacifier are bioactive, show a high alkaline capacity and are radio-opaque. Compositions and formulations including such material are particularly useful in advanced dental applications, such as dental fillings and/or disinfection.

Abstract: Improved compositions comprising a mixture of particulate materials with water-based liquids containing water-soluble polymers and surfactants are provided. Examples of particulate powders include mixtures of calcium silicate, calcium aluminate, calcium sulfate, and hydroxyapatite. Examples of water-soluble polymers include polyvinyl alcohols, polyvinyl pyrrolidone, partially hydrolyzed polyvinyl acetates, polyacrylic acid, and polymethacrylic acid. Surfactants such as sodium dodecyl sulfate are added to the composition to interact with the polymeric materials. The compositions are particularly suitable for sealing and obturating dental root canals and root apices. The composition provides a stable barrier to bacterial and fluid leakage in the root canal system of a tooth. In addition, the compositions help promote the growth of new bone and tissue surrounding the root-tip area or dentin tissue that covers an injured or amputated pulp.

Abstract: A dental filler is disclosed. The filler is produced by admixing a metal oxide sol and a water-soluble organic binder; drying said mixed sol into a dried product; and calcining said dried product; wherein said filler is a substantially amorphous cluster. The filler can be mixed into a hardenable resin to provide radiopaque dental materials having desirable strength and aesthetic character.

Abstract: Polymerizable dental composite comprising a solid filler and an organic polymerizable matrix, said polymerizable matrix comprising: (i) a polymerizable (meth)acrylic monomer having at least two polymerizable groups and (ii) from 1.0 to 15 weight-% of a polymerizable monomer having a carboxylic acid group based on the total weight of said polymerizable matrix.

Abstract: Methods for synthesis of nanocrystalline apatites are presented, as well as a series of specific reaction parameters that can be adjusted to tailor, in specific ways, properties in the recovered product. Particulate apatite compositions having average crystal size of less than 150 nm are provided. Products also can have a surface area of at least 40 m2/g and can be of high density. Hydroxyapatite material is investigated in particular detail. Compositions of the invention can be used as prosthetic implants and coatings for prosthetic implants.