Abstract: Dental impression masses are described, which contain selected curable polymer systems and a mixture of a silicon-containing non-ionic surfactant that has at least one (poly)alkylene oxide group and a molecular mass of less than 6000 g/mol, and of a non-ionic fluorosurfactant containing at least one partially fluoridated or perfluoridated hydrocarbon group that is connected with a (poly)alkylene oxide group, a hydrocarbon group, an aliphatic polyhydroxy group, or heterocyclic group that contains nitrogen, by way of an oxygen atom, an amino group, a keto group, a carboxylic acid ester group, a phosphoric acid ester group, a carboxylic acid amide group and/or a phosphoric acid amide group, or of a non-ionic fluorosurfactant that has at least one partially fluoridated or perfluoridated hydrocarbon radical and at least one amino oxide radical.

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: The present invention provides a sintered body of titanium compound obtained by sintering the titanium compound and a method for producing the same. A titanium compound represented by the formula (1) or (2) below is sintered. [Ca10(PO4)6]TiO3.nH2O??(1) [Ca10(PO4)6]TiO2(OH)2??(2) (In the formulae, n is an integer of from 0 to 3). The obtained sintered body substantially consists of perovskite and whitlokite.

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 dental glass containing 50 to 70 wt. % of SiO2, 5 to 18 wt. % of Al2O3, 6.1 to 30 wt. % of MgO, 1 to 15 wt. % of La2O3, 1 to 15 wt. % of WO3, 0.1 to 8 wt. % of ZrO2, and optionally further oxides except for the oxides of Sr, Ba or alkali metals, wherein the stated quantities in total add up to 100 wt. %.

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: A bone or dental implant material in the form of a paste includes a mixture of calcium phosphate and/or calcium-containing powders, liquid glycerol, organic acid and gelling agent. The paste is stable, resistant to washout and will harden upon exposure to water. Physical characteristics of the paste, including consistency, porosity, and hardening time, are controlled by the choice and ratio of constituents.

Abstract: A bone substitute composition includes glass flake and a hardenable material. The glass flake is a particle with an aspect ratio of, at least, 20:1. The preferred thickness of the glass flake is in the range from 200 to 1,000 nm and the average particle size is, preferably, from 20 to 60 ?m.

Abstract: The invention relates to a curable dental retraction composition for reacting gingiva from a prepared tooth structure. The composition comprises an alginate, a di- and/or trivalent ion source, water, a retarder and a filler.

Abstract: A novel amorphous divalent metal ion salt for enhancing the manageability of a Portland cement and its application in dental field are disclosed. Typical formula (I), (II), or (III) of this amorphous metal ion salt are shown as following: M 2 + ? A x - ? B 2 - x - ( I ) M 2 + ? A y 2 - ? C ( 4 - y ) 4 2 - ( II ) M 2 + ? A z 3 - ? D ( 6 - z ) 9 3 - ( III ) wherein, M2+, A?, B?, C?2, D?3, x, y, and z are defined the same as the specification. A novel tooth filling material comprises: a Portland cement, a bone substitute substance, and an amorphous divalent metal ion salt with formula of (I), (II), or (III). In addition, a novel root canal filling material comprises: a Portland cement, a radiopaque substance, and an amorphous divalent metal ion salt with formula of (I), (II), or (III).

Abstract: The present invention relates to a multicomponent automixable putty impression material, its components, mixtures of the components and a method for obtaining impressions with the multicomponent automixable putty impression material.

Abstract: A bone or dental implant material in the form of a paste includes a mixture of calcium phosphate and/or calcium-containing powders, liquid glycerol, organic acid and gelling agent. The paste is stable, resistant to washout and will harden upon exposure to water. Physical characteristics of the paste, including consistency, porosity, and hardening time, are controlled by the choice and ratio of constituents.

Abstract: Disclosed is a one-pack type dental adhesive composition comprising: (a) 1.0 to 40.0 parts by weight of a silane coupling agent, (b) 0.01 to 0.4 part by weight of a weak acidic compound which is at least one of organic acid, boric acid and silicic acid, and has an acid dissociation exponent pKa of 3 or more in the form of an aqueous solution, (c) 0.01 to 0.4 part by weight of a strong acidic compound which is at least one of HF, HCl, HBr, HI, HNO3, HClO3, HClO4, HBrO4, HMnO4, H2SO4 and H3PO4 and has an acid dissociation exponent pKa of less than 3, (d) 0.1 to 5.0 part by weight of water, and (e) 20.0 to 99.0 parts by weight of a volatile organic solvent.

Abstract: A system for a dental filling material or an implant material, alternatively a system for bonding between a tooth or a bone and a dental filling material and a implant material, respectively, which system comprises a water based hydration liquid and a powdered material, the binder phase of which powdered material essentially consisting of a calcium based cement system, which powdered material has the capacity following saturation with the liquid reacting with the binder phase to hydrate to a chemically bonded ceramic material. According to the invention, said powdered material and/or said hydration liquid comprises water soluble phosphate or a phase that has the capacity to form water soluble phosphate, whereby the system exhibits the capacity during hydration to form apatite. The invention also relates to the powdered material and the hydration liquid as such, an implant material and a method of achieving bonding.

Abstract: A composition is disclosed comprising a polymerizable (meth)acrylate of the structure: wherein A is an anhydride; a is 0 or 1; n is 0, 1, 2, or 3; R1, R2, R3, and R4 are each independently hydrogen, hydroxy, C1-C12 alkyl, C1-C12 perhaloalkyl, C1-C12 alkoxy, C1-C12 perhaloalkoxy, C2-C12 alkenyl, C2-C12 alkynyl, (C1-C6 alkyl)-O-(C1-C6 alkylene), or hydroxy(C1-C6 alkylene); x and y are each independently an integer of 1 to 10; z is an integer of 1 to 5; R5 is hydrogen or methyl; M is wherein G and J are each independently O or NR6, wherein R6 is hydrogen or C1-C6 alkyl; m is 1, 2, 3, or 4; W is an organic group having the valency of z+1; and q is 0 or 1; and further wherein when a is 1, n+m+q is 1, 2, 3, or 4, and when a is 0, n+m+q is 1, 2, 3, 4, 5, or 6. The composition finds use as a dental resin.

Abstract: Compositions containing Montmorillonite and Portland cement for tooth filling are disclosed; such compositions have shown good biocompatibility, excellent marginal adaptation to dentinal walls, short setting time, and improved viscosity.

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: The X-ray opaque glass is characterized by a composition, in mol %, of SiO2, 75-98; Yb2O3, 0.1 to 40; and ZrO2, 0 to 40. Preferred embodiments of the glass are free of Al2O3 and B2O3. The glass is produced from the glass batch by melting at a temperature of at least 1500° C. in an iridium or iridium alloy vessel with the assistance of high-frequency radiation. In preferred embodiments of the glass production process at least one raw material ingredient is present in the batch as a nanoscale powder. The glass is useful in dental applications, optical applications, and biomedical applications, or for photovoltaics, or as a target material in PVD processes.

Abstract: The present invention deals with the initial hydration reaction of highly alkaline chemically bonded ceramic systems such as Ca-aluminate and Ca-silicate, exhibiting a controlled pH development, reduced from very high levels to be in a pH range of 7-9 by the use of an internal buffer system added to the CBC type biomaterial used. The invention is especially intended for endodontic, orthopaedic applications and/or soft tissue applications and/or drug delivery carrier applications.

Abstract: Phosphorus-calcium-strontium compound of formula (I); method for preparing same; composition for the extemporaneous preparation of a cement comprising a solid phase (SP) and a liquid phase (LP), wherein the solid phase comprises a mixture of inorganic compounds of formula (II); use as an endodontic cement.

Abstract: A dental filler having the optical and/or mechanical properties satisfying the requirements to a dental material, a method for producing the dental filler, and a dental composite material containing the dental filler. The dental filler comprises microparticles of amorphous inorganic oxide constituted by at least silica-based fine particles covered with a composite oxide comprising zirconium, silicon and oxygen. The dental composite material contains the dental filler and a hardenable resin selected from an acrylic resin, a methacrylic resin, an epoxy resin, a vinyl resin and a urethane resin.

Abstract: The present invention relates to ceramic precursor powder compositions and chemically bonded ceramic (CBC) materials, Ca-aluminate and/or calcium silicate, and a composite biomaterial with prolonged shelf time of the precursor, suitable for orthopaedic applications with improved injectability. The present invention also relates to a method of manufacturing said cured material, bioelements, implants, or drug delivery carrier materials made by said cured material, a kit comprising the ceramic precursor powder and hydration liquid, as well as the use of said ceramic precursor powder and hydration liquid, or said cured material, for orthopaedic and dental applications.

Abstract: A hydraulic cement based on calcium phosphate for surgical use comprising A) a first component comprising powder particles of calcium phosphate; and B) a second component comprising water. The calcium phosphate comprises anhydrous, amorphous calcium phosphate (ACP) and the ACP is obtained by milling a calcium phosphate synthesized above 500° C. The cement according to the invention has the advantage of being very fast setting compared to prior art calcium phosphate cements. The setting reaction is finished much faster although the initial part of the reaction proceeds at the same speed as with known cements.

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 unsaturated moiety, no Si—Oxygen bond, b) Si—H functional component (B), 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 provides a phosphate compound having an unsaturated double bond and a metal salt thereof; a dental material containing a phosphate compound having an unsaturated double bond and/or a metal salt thereof; and a dental composition containing a phosphate compound having an unsaturated double bond and/or a metal salt thereof. The phosphate compound of the invention provides a dental material and a dental composition such as a bonding material, adhesive material and a dental luting agent that are highly stable during storage, convenient for handling, and that exhibit higher adhesiveness and bond durability.

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 method for producing a calcium phosphate bone filler by preparing a mixed liquid comprising a calcium solution and a phosphoric acid solution in such a manner that a substrate of calcium phosphate exists in the mixed liquid, thereby precipitating calcium phosphate on the substrate to form a coating layer, and heat-treating the resultant composite comprising the substrate and the coating layer.

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: A calcium oxide-silica composite biomaterial either in amorphous state or crystalline state having an average pore size, as determined by the BET method, in the range of from 0.8 to 4 nm, wherein the calcium oxide-silica content of the biomaterial is at least 80 wt %, the balance being optionally one or more other materials and wherein the molar ratio of calcium oxide to silica is at least 0.1.

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.

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: The present invention provides a dental resin cement composition comprising at least two kinds of pastes, one kind of a paste comprising (a) 20 to 50 parts by weight of a polymerizable monomer composition and (b) 50 to 80 parts by weight of a filler consisting of an inorganic compound, or an organic composite comprising an inorganic compound, amounts of (a) and (b) being based on conversion of 100 parts by weight of the dental resin-based cement composition paste, and the filler (b) comprising (c) 2.0 to 10.0 parts by weight of fine silica particles based on the above conversion, and having (d) a yield viscosity of from 100 to 3,000 [Pa·s], and (e) a thixotropy index of 3.0 or more; and another kind of a paste having the same constituent features (a) to (c) and (e) except that the paste has (d) a yield viscosity of from 70 to 4,000 [Pa·s], wherein upon use, the at least two kinds of pastes are used by mixing them.

Abstract: The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes a caseinate. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment. Dental compositions, and methods of using dental compositions that include a caseinate and a hardenable resin or a water-dispersible, polymeric film former are also provided.

Abstract: The present invention relates in general to implantable compositions, and method for preparing same, containing a calcium salt-containing component, optionally demineralized bone, a plurality of discrete fibers, optionally a flow additive, and optionally continuous reinforcing fibers or an array of organized fibers in the form of mesh. Advantageously, the discrete fibers have a specific aspect ratio (length/diameter) from about 50:1 to about 1000:1. The addition of a small amount of discrete fibers and/or the continuous reinforcing fibers or fiber mesh can cause drastic increases in certain mechanical properties including flexural strength, flexural toughness, and/or screw pullout strength.

Abstract: The invention relates to a kit of parts consisting of: a) a material for producing a shaped body; b) a metal powder, a powder of a metal alloy, a powder of a pigment having a metallic effect or a powder having a laminar structure, and; c) if needed, of customary additives. The inventive kit of parts can be used to produce shaped bodies, especially in the field of dentistry, which can be excellently detected by optical systems.

Abstract: Bond strength of a composite resin, an adhesive resin cement or the like to dentin or enamel of tooth is remarkably improved by treating the dentin or the enamel with a self-etching primer agent comprising an aqueous solution of a methacrylic acid derivative such as N-methacryloylglycin, N-methacryloyl-3-aminopropionic acid, N-methacryloyl-4-aminobutyric acid, N-methacryloyl-5-aminovaleric acid, N-methacryloyl-6-aminocaproic acid, N-methacryloyl-2-aminomethylphosphonic acid, N-methacryloyl-3-aminoethyl-phosphonic acid and N-methacryloyl-4-aminopropylphosphonic acid.

Abstract: The disclosure relates to metal oxide powders with a bimodal particle size distribution, to ceramics that can be made from these metal oxide powders, especially milling ceramics for use in dental technology, to a method for the production of the metal oxide powders and of the ceramics, to the use of nanoscale metal oxide powders for the production of the metal oxide powders and of the ceramics as well as to dental ceramic products.

Abstract: A non-toxic water erodible denture adhesive incorporating a starch portion and a polysaccharide portion whereby a elastomeric paste of excellent bioadhesiveness and adhesion to smooth surfaces is obtained; and which is found to have excellent thin film forming properties and is water erodible facilitating easy removal from denture recesses as well as the intraoral cavity.

Abstract: The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes a phosphate salt. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment. Dental compositions, and methods of using dental compositions that include a phosphate salt and a hardenable resin or a water-dispersible, polymeric film former are also provided.

Abstract: A hydraulic cement comprising a calcium silicate and at least one phosphate compound. The phosphate compound is included in an amount sufficient to react a major portion of the calcium hydroxide that is produced during hydration of the cement to hydroxyapatite or other calcium phosphates. The phosphate compound is preferably a mono-calcium phosphate. The cement is useful in both bio-medical/dental and engineering applications. The calcium hydroxide is reacted by the phosphate to form hydroxiapatite or other calcium phosphate that is co-precipitated with the calcium silicate hydrate to form a composite-like structure on a nano-scale level. The reduced calcium hydroxide content in the set cement increases its strength and reduces its pH. The hydroxiapatite content and the reduced pH render the cement bio-active and suitable for use in medical and dental implants, for example, for replacement bone and tooth material. Due to its high strength, the cement may also be used for structural/engineering applications.

Abstract: A method for manufacturing the DP-bioglass to use in dental fracture repair via the carbon dioxide laser, the method comprises the steps: mixing and co-dissolving silicon and phosphoric acid raw material into ethanol; sequentially adding nitric acid, calcium and sodium raw material and stirring; standing, drying, triturating and heating the composition to obtain a glass powder material consisting of Na2O—CaO—SiO2—P2O5 and drying the oxide material mixing with a phosphoric acid to react the DP-bioglass.

Abstract: In dental ceramics containing zirconium dioxide and silicon-dioxide with a Zr/Si ratio of between 0.5 and 1.0, 1 to 12 wt % of aluminum oxide and up to 2 wt % of an alkali- or earth alkali metal oxide, those materials are selectively mixed with yttrium-stabilized zirconium dioxide with a Zr/Si ratio of the mixture being between 0.5 and 1 wt % and also a silicon organic compound as well as a compression aid, and a green body is formed from the mixture by milling, which green body is then sintered.

Abstract: A hydraulic cement for biomedical applications. The cement sets in-situ, hardening when exposed to water to produce nano-dispersed composite of calcium-silicate-hydrate gel mixed with hydroxyapatite. In comparison with prior cements, the composition provides high biocompatibility, high bioactivity and high biomechanical strength, due to the composite structure of the calcium silicate hydrate reinforced with co-precipitated particles of hydroxyapatite. Biocompatibility is also increased due to an absence of aluminum and magnesium in the composition. The cement is suitable for variety of applications, including dental implants, bone fixation, and bone repair.

Abstract: A dentition model material is comprised of a gypsum composition and an additive, wherein, in response to being scanned, a dentition model produced from the dentition model material is configured to produce a signature associated with the additive.

Abstract: The present invention relates to an alkylenediamine-N,N,N?,N?-tetraacetic acid-(meth)acrylamide of formula (I) The invention also relates to a polymerizable composition which is characterized in that it comprises at least one alkylenediamine-N,N,N?,N?-tetraacetic acid-(meth)acrylamide of formula (I), and its use in particular as dental material.

Abstract: This invention relates to a cement, which comprises in its main phase of microcrystalline magnesium ammonium phosphate and nanoapatite after hardening and thus at the same time has considerable strength. The material is biologically degradable and is suitable for application in tooth cements, as bone replacement, as bone filler, as bone cement or as bone adhesive.

Abstract: The present invention relates to a product for preventing periodontal disease wherein the product includes or is based on a Cystatin type peptide. The invention also relates to dentifrice preparations including Cystatin and to medicaments including Cystatin for the treatment or prevention of periodontal disease and to the use of a nucleic acid sequence which encodes a Cystatin type peptide.

Abstract: A (meth)acrylic ester compound represented by the general formula (1) and a dental material containing the compound, wherein, in the formula, R11 represents a divalent aromatic group; R12 represents a hydrogen atom or a methyl group; R13 represents an aryl group; R14 represents a hydrogen atom or a methyl group; and X11, represents an oxygen atom or a sulfur atom. A polymerizable composition containing the (meth)acrylic ester compound and an optical part obtained by polymerizing the polymerizable composition are also provided. The cured composition can provide advantageous physical and optical properties.

Abstract: The present invention is directed to a synthetic biomaterial compound based on stabilized calcium phosphates and more particularly to the molecular, structural and physical characterization of this compound. The compound comprises calcium, oxygen and phosphorous, wherein at least one of the elements is substituted with an element having an ionic radius of approximately 0.1 to 1.1 ?. The knowledge of the specific molecular and chemical properties of the compound allows for the development of several uses of the compound in various bone-related clinical conditions.

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.