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: A method of producing a self-hardening, bioabsorbable composite material, the material produced and its areas of application are described. The method is based on the principal method steps (I) immobilisation of a polymerisation initiator in a microporous pore system of a first partial amount of a bioabsorbable calcium phosphate used in producing the self-hardening, bioabsorbable composite material, (II) immobilisation of a polymerisation activator in the microporous pore system of a second partial amount of the bioabsorbable calcium phosphate used in producing the self-hardening, bioabsorbable composite material and (III) homogeneous mixing of the components according to (I) and (II) with a liquid or paste-form, multi-functional monomer capable of forming a biocompatible, bioabsorbable polymer network or a corresponding monomer mixture and, optionally, with further constituents which modify the properties of the monomer or monomer mixture.

Abstract: At least one of these or other problems is reduced using a building material that is uniquely identifiable. A method of making an identifiable gypsum-based building product includes selecting a tagging material occurring naturally in a component of the building material and choosing a carrier substance having a high concentration of the tagging material. By selecting an amount of the carrier substance and adding it to the building material, a building product having a unique product characteristic is created. In a second embodiment of the invention, a second tagging material is combined with the first tagging material to create a unique product. In yet another embodiment of the invention, a supplemental amount of the tagging material is added to the gypsum-based composition in addition to the carrier substance. Some tagging materials are useful in a gypsum-based composition to produce a visual confirmation of the presence of the tagging material.

Abstract: Biomaterials, in particular bone foams, a process for preparing such materials as well as an applicator for applying the biomaterials directly to the patient's application site, and the use of a composition comprising water, a surfactant and a propellant in the preparation of a bone foam for the preparation of a calcium phosphate foam wherein the foam is obtainable by the mixture of at least two phases, a first phase comprising water and optionally a propellant, a second phase comprising one or more sources for calcium and/or phosphate, and wherein the foaming is performed during the mixture of the at least two phases to provide an improved calcium phosphate foam, process for the preparation of a calcium phosphate foam, use of a composition, solid state structure, calcium phosphate cement foam and bone foam applicator.

Abstract: Putty compositions having colorants incorporated therein to provide materials useful in a dental laboratory or operatory for a variety of functions including manufacture of dental restorations, the invention facilitates inter alia the staining of the restorations to desired shades for maximum cosmetic effect.

Abstract: A composition containing curable polymers is disclosed selected from the group of organopolysiloxanes that crosslink by means of an addition reaction, organopolysiloxanes that crosslink by means of a condensation reaction, polyethers that contain alkoxysilyl groups and crosslink by means of a condensation reaction, polyethers that contain aziridino groups and crosslink by means of an addition reaction, polyethers that contain alkenyl groups and crosslink by means of an addition reaction, polyethers that contain ester groups of an ethylenically unsaturated carboxylic acid and crosslink by means of a radical polymerization reaction, or polyethers, silicones or rubbers that crosslink by means of a ring-opening metathesis reaction and also contain at least one nonionic and/or ionic fluorosurfactant.

Abstract: Sintered bodies containing zirconia-based ceramic materials and partially sintered bodies that are intermediates in the preparation of the sintered bodies are described. The zirconia-based ceramic material is doped with lanthanum and yttrium. The grain size of the zirconia-based ceramic material can be controlled by the addition of lanthanum. The crystalline phase of the zirconia-based ceramic material can be influenced by the addition of yttrium.

Abstract: The invention is directed to veneer ceramics for dental restorations of framework ceramics comprising yttrium-stabilized zirconium dioxide. It is the object of the invention to make possible a translucent veneer ceramic which has high flexural strength as well as excellent adhesion to the framework ceramic of yttrium-stabilized zirconium dioxide. According to the invention, this object is met in a veneer ceramic for dental restorations made of yttrium-stabilized zirconium dioxide which is produced from the following components: a) SiO2 58.0-74.0 percent by weight b) Al2O3 ?4.0-19.0 percent by weight c) Li2O ?5.0-17.0 percent by weight d) Na2O ?4.0-12.0 percent by weight e) ZrO2 ?0.5-6.0 percent by weight.

Abstract: A non-aqueous hydraulic cement composition comprises a non-aqueous mixture of (a) ?-tricalcium phosphate powder, (b) monocalcium phosphate powder, and (c) non-aqueous water-miscible liquid, wherein (i) at least about 90% of the monocalcium phosphate powder has a grain size in a range of about 200-600 ?m and the powder (weight) to liquid (volume) ratio is about 2.5-5.5, (ii) at least about 90% of the monocalcium phosphate powder has a grain size in a range of about 1-400 ?m and the powder (weight) to liquid (volume) ratio is about 2-5, or (iii) at least about 90% of the monocalcium phosphate powder has a grain size in a range of about 1-600 ?m and the powder (weight) to liquid (volume) ratio is about 2.5-5.5. Methods, hardened cements, articles of manufacture and kits employ such compositions.

Abstract: Disclosed are dual-phase cement precursor systems and associated methods and kits. The cement precursor systems comprises at least first and second phases each containing a calcium phosphate compound. When mixed, the first and second cement precursor phases form a biocompatible cement. The disclosed systems include an organic acid in an amount effective to enhance the working time of the cement precursor composition, and also include a setting accelerator. In some embodiments, one or more of the calcium phosphate compounds is provided in the form of particles with a nonmonomial particle sized distribution.

Abstract: The present invention relates to a photosensitive composition comprising synthetic nanocrystalline hydroxyapatite or a synthetic precursor thereof doped with a rare earth ion, the use of the composition in restorative or cosmetic dentistry, a process for preparing the composition and a method of generating an image of an exposed dentinal surface of a tooth.

Abstract: Dental composition comprising an aqueous mixture containing (i) a polymerizable acidic phosphoric acid ester monomer of the following formula (A): wherein a is an integer of from 1 to 10; R1 represents a hydrogen atom or a moiety of the following formula (Y) wherein X independently represent an oxygen atom, a sulfur atom, or a group NR, wherein R may be a hydrogen atom, a C1-6 alkyl group or an acyl group; L represents an (a+b)-valent organic residue containing 1 to 20 carbon atoms and optionally including ether, thioether or amino groups or further acidic groups, whereby the carbon atoms comprise at least a+b carbon atoms selected from primary and secondary aliphatic carbon atoms, secondary alicyclic carbon atoms, and aromatic carbon atoms, each of said a+b carbon atoms linking a phosphate or 2-(oxaallyl) derivative group; b is an integer of from 1 to 10; R2 which may be the same or different, independently may be hydrogen, an allyl group or a moiety R1 wherein b is 1; provided that

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 present invention provides a redox-curing type composition that penetrates into a wet body, particularly into a tooth structure (dentin), is cured in an accelerated manner by the moisture contained in the wet body, thereby exhibits a higher bond strength than those of conventional redox-curing type compositions, and has satisfactory storage stability. The present invention is a redox-curing type composition including a polymerizable monomer (a) having an acidic group, a polymerizable monomer (b) having no acidic group, a powdery inorganic peroxide (c) with an average particle diameter of 0.01 to 50 ?m, an amine-based reducing agent (d), and a polymerization accelerator (e). The amine-based reducing agent (d) includes an aromatic amine (d?1) and an aliphatic amine (d?2), and a weight ratio (d?1):(d?2) therebetween is 5:1 to 1:50.

Abstract: The invention relates to compositions based on ZrO2, and single- and multi-coloured blanks made from oxide ceramics, and a process for their preparation, in which a) oxide ceramic powder is coated with a colouring substance, b) the coated powders are preferably graded and at least one coloured powder is filled into a compression mould, c) the coloured powder or powders are compressed to produce a shaped body, and d) the compressed shaped body is sintered to produce a blank, and to the use of these blanks for the preparation of dental restorations.

Abstract: A spray glaze or opaque composition for coating dental restorations and other surfaces and objects such as hobby ceramics that comprises about 4 to about 50 weight % glaze material, about 5 to about 60 weight % restoration wetting agent, and about 10 to about 90% non CFC propellant. An opaque composition further comprises about 5 to about 30% opaque material.

Abstract: 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).

Abstract: Oral products for the improved mineralization/remineralization of teeth are provided. In an embodiment, the present disclosure provides an oral product comprising a calcium salt, a phosphate salt, a sodium salt and a potassium salt. For example, the molar ratio of the sodium salt to the potassium salt ranges from about 3 to about 4.

Abstract: An adhesive composition for dental use exhibiting acidic property, including a mixture of a polymerizable monomer component (A) containing a phosphoric acid-type polymerizable monomer having an acidic group derived from phosphoric acid, and a multivalent metal ion-releasing component (B), wherein the multivalent metal ion-releasing component (B) is capable of releasing at least earth metal ions, and in the composition, earth metal ions stemming from the component (B) are present together with the phosphoric acid-type polymerizable monomer in such an amount that a total valency ratio (RE) defined by the following formula (1) is in a range of 0.2 to 3.0. The adhesive composition is capable of strongly adhering and fixing a composite resin or a prosthetic material to a tooth for extended periods of time maintaining stability.

Abstract: The present invention relates, generally, to monomers containing carbamate-methacrylates or derivatives of carbamate-methacrylates, processes for making the monomers, and compositions comprising the monomers. The present invention also relates to methods of using the monomers, such as in dental applications, and in particular, dental restorative resins.

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

Abstract: An oral composition comprising an active component and an adhesive film forming component comprising bleached shellac and shellac wax for the treatment of teeth.

Abstract: An investment composition comprising a reducing agent containing carbon.

Abstract: The present invention provides a dental curable composition exhibiting both excellent light diffusion and excellent transparency, and having high mechanical strength and surface smoothness and gloss after polishing as a cured product as well as good handling properties as a paste. The present invention is a dental curable composition including: a polymerizable monomer (A) having a refractive index of 1.52 to 1.58 after polymerization; inorganic particles (B) having a refractive index of 1.43 to 1.50; and inorganic particles (C) having a refractive index of 1.52 to 1.58. The inorganic particles (B) are aggregates of inorganic fine particles having an average primary particle size of 2 to 50 nm, and the content of the inorganic particles (B) is 0.1 to 10% by weight.

Abstract: Substituted saccharide compounds, dental compositions comprising substituted saccharide compounds, and methods of using dental compositions are described. In one embodiment, the substituted saccharide amide compound comprises a hydrophobic group and at least one free-radically polymerizable group with the proviso that the hydrophobic group is not bonded to the ethylenically unsaturated carbon atom of the free-radically polymerizable group. The hydrophobic group is typically bonded to a nitrogen atom of a saccharide amine residue or a carbonyl moiety of saccharide amide residue.

Abstract: A method and a device for effecting the cordless retraction of the gingival sulcus tissue that includes a dam shaped to be fitted onto a tooth. In one embodiment, the well of the dam is pre-filled with a predetermined amount of a flowable retraction material having a heavy viscosity or putty consistency. In another embodiment a hydrophilic material is added. The preloaded tooth dam is fitted to a prepared tooth so that when pressure is applied onto the tooth dam, the retraction material is displaced under pressure and forced into the sulcus, causing the gingival tissue to retract away from the tooth to enlarge the gingival sulcus. In another embodiment the cap is filled with a dilatant material. In another embodiment, the cap is filled with an impregnated compressible porous material. In yet another embodiment, the cap is pre-dosed with an astringent or hemostatic agent.

Abstract: The present invention relates to dental materials composed of calix[n]arenes and also to the use thereof for cements, composites, adhesives and coating materials in the dental field. The materials include (a) 0.5 to 90% by weight of at least one polymerizable calix[n]arene according to formula (I), (b) 0.01 to 5% by weight of initiator, (c) 0 to 90% by weight of at least one additional monomer which can polymerize under cationic and/or radical conditions and/or which can polymerize by ring opening, (d) 0 to 85% by weight of filler, (e) 0.01 to 5% by weight of additive and (f) 0 to 70% by weight of solvent.

Abstract: A composition of macrocyclic oligomer with at least one polymerizable group, (meth)acrylate, for example.

Abstract: Dental compositions and disulfide monomers are described. The disulfide monomer comprise a disulfide backbone group wherein each of the sulfur atoms are bonded to an ethylenically unsaturated group via a divalent linking group and the linking group comprises at least one heteroatom; and at least one other monomer ethylenically unsaturated monomer.

Abstract: Provided herein are uncured dental composites suitable for, among other things, filling cavities in teeth.

Abstract: A dental composition of the present invention includes: a polymerizable monomer component (A); and an amorphous filler (B) having an average particle size of 1 to 20 ?m and including silica-based fine particles and coatings of an oxide that cover the surfaces of the silica-based fine particles. The oxide contains a zirconium atom, a silicon atom, and an oxygen atom. The dental composition contains 20 to 500 parts by weight of the filler (B) per 100 parts by weight of the polymerizable monomer component (A). The dental composition has a viscosity of 10 to 800 Pa·s. It is preferable that the filler (B) contain spherical particles, and that the percentage of the spherical particles in the filler (B) be at least 60%.

Abstract: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools.

Abstract: A dental composition of the present invention includes: a polymerizable monomer (A); an amorphous filler (B) having an average particle size of 1 to 20 ?m and including silica-based fine particles and coatings of an oxide that cover the surfaces of the silica-based fine particles; and inorganic particles (C) having an average particle size of 0.1 to 1.0 ?m. The oxide contains a zirconium atom, a silicon atom, and an oxygen atom. It is preferable that the dental composition contain 50 to 400 parts by weight of the filler (B) and 100 to 400 parts by weight of the inorganic particles (C) per 100 parts by weight of the polymerizable monomer (A).

Abstract: Bone graft compositions for repairing bone defects, which are characterized by a chemical composition of cementitious, non-cementitious, highly-resorbable and poorly-resorbable particulate substances, and further characterized by a specific particle size distribution that includes two or more different ranges of particle size, are disclosed. Further disclosed are articles of manufacturing and unit dosage forms containing the bone graft compositions, methods of repairing bone defects utilizing the bone graft compositions, and processes of preparing the same. Also provided are applicators for applying flowable mixtures formed by mixing a dry composition and a liquid carrier, which are particularly useful for preparing and applying bone graft compositions, as well as methods of using same.

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: Dental compositions and disulfide monomers described. The disulfide monomer comprises a disulfide backbone group wherein each of the sulfur atoms are bonded to a group terminating with an ethylenically unsaturated norbornyl group; and at least one other monomer comprising at least two ethylenically unsaturated groups.

Abstract: The present invention discloses a surgical cement and a manufacturing method thereof. The surgical cement comprises a cementing component selected form the group of a basic calcium phosphate consisting of tetracalcium phosphate, alpha-tricalcium phosphate, decomposed hydroxyapatite, or a combination thereof; a setting reagent selected form the group of an acidic calcium citrate consisting of monocalcium citrate, dicalcium citrate, or a combination thereof; and water; wherein a weight ratio of the cementing component and the setting reagent ranges from about 1:1 to about 8:1. The surgical cement is bioresorbable and bioactive and is useful in orthopedic, maxillofacial and dental applications. In addition, the surgical cement of this invention has a good flow character and a relatively short setting time.

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: A hydraulic cement composition comprises a mixture of (a) a cement powder composition which is soluble or partly soluble in water, (b) a non-aqueous water-miscible liquid, and (c) an aqueous hydration liquid. Methods of producing a hardened cement, hardened cements, kits, and articles of manufacture employ such compositions.

Abstract: A non-aqueous hydraulic cement composition comprises a non-aqueous mixture of (a) ?-tricalcium phosphate powder, (b) monocalcium phosphate powder, and (c) non-aqueous water-miscible liquid, wherein (i) at least about 90% of the monocalcium phosphate powder has a grain size in a range of about 200-600 ?m and the powder (weight) to liquid (volume) ratio is about 2.5-5.5, (ii) at least about 90% of the monocalcium phosphate powder has a grain size in a range of about 1-400 ?m and the powder (weight) to liquid (volume) ratio is about 2-5, or (iii) at least about 90% of the monocalcium phosphate powder has a grain size in a range of about 1-600 ?m and the powder (weight) to liquid (volume) ratio is about 2.5-5.5. Methods, hardened cements, articles of manufacture and kits employ such compositions.

Abstract: The present invention provides a dental polymerizable composition which has excellent handling property by the brush-dip technique and the bulk-mix technique, particularly excellent handling property by the brush-dip technique, contains few air bubbles, is excellent in color tone, polishability, mechanical properties and the discoloration resistance of a cured product at the time of curing and is used for many purposes such as the repair of a denture base or artificial tooth, a tooth crown prosthetic restoration and a temporary prosthetic restoration which is used until a bridge is completed when it is a two-composition type self-curing resin. The dental polymerizable composition comprises three different types of (meth)acrylate polymer particles, each having specific particle size characteristics and specific molecular weight characteristics.

Abstract: The present invention describes dental adhesive compositions used for bonding dental biomaterials to hard tissue comprising a polymerizable blend of one or more newly synthesized low shrinkage, stable, multifunctional compounds, where the compounds are acidic-methacrylate derivatives, having excellent properties of bonding the hard tooth substance (enamel or dentin) to dental restorative materials, and present high quality marginal sealing between the tooth and the material thus bond and improved storage stability

Abstract: A composite material precursor composition includes a matrix precursor, a first plurality of capsules including a liquid polymerizer, an activator, and an accelerant. The liquid polymerizer polymerizes when in contact with the activator, and the accelerant is an accelerant for the polymerization of the liquid polymerizer. The composite material precursor may be used to form a composite material that includes a solid polymer matrix, the first plurality of capsules in the solid polymer matrix, the activator in the solid polymer matrix, and the accelerant in the solid polymer matrix.

Abstract: 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.

Abstract: To provide a dual curing type composite resin for core build-up having improved curing property by chemical polymerization with improved mechanical strength of a cured body under the condition of no light irradiation and with a shortened setting time, the composite resin is composed of a first component including a (meth)acrylate polymerizable resin and an organic peroxide, and a second component including (meth)acrylate polymerizable resin and a reducing agent, a photopolymerizaton initiator and a filler are included in the first component and/or the second component, and oxide powder of a Group II element in the periodic table having an average particle diameter of 1 ?m or less is blended in the first component and/or the second component.

Abstract: A filler which is surface-modified with a compound of the formula [(PG)-R1—Z]n—SP—[Y—R2-(AG)]m is particularly suitable for use in dental materials, for the preparation of adhesives, coatings and composites.

Abstract: A process for improving the stability of yttrium stabilised zirconia for dental restorations comprising yttrium stabilised zirconia, the dental restorations are veneered with a dental ceramic veneering material wherein—the dental restoration comprising yttrium stabilised zirconia and to be veneered is provided;—the dental ceramic veneering material is applied to the dental restoration by an aerosol which contains the dental ceramic veneering material and substantially water-free propellant;—the resulting arrangement is fired to a resulting veneered dental restoration.

Abstract: One subject of the invention is a composition comprising from 5 to 65%, by weight relative to the total weight of the composition, of calcium silicate crystals; from 1 to 20%, by weight relative to the total weight of the composition, of calcium carbonate crystals; in addition from 0 to 50%, preferably from 1 to 40%, by weight relative to the total weight of the composition, of a compound of general formula mCaO.nSiO2.pH2O in which m and n, each independently, vary from 1 to 3 and p varies from 3 to 6; the ratio between the particle size d50 of the calcium silicate crystals and the particle size d50 of the calcium carbonate crystals being less than 10; another subject of the invention is a process for preparing said composition, and also the use of said composition in the dental field.

Abstract: A method of synthesizing hydroxyapatite nanorods, having high purity, high crystallinity and high aspect ratio is disclosed here. In one embodiment, high crystalline hydroxyapatite nanorods with relatively stoichiometric structure are prepared via hydrothermal method at 200° C. and under moderate acidic conditions. The synthesized hydroxyapatite nanorods have a diameter of 30-95 nm, a length of 850-1400 nm with an average aspect ratio of 24, degree of crystallinity of 73% and stoichiometry ratio of 1.69. Further it discloses the use of HAp in dental adhesive. The dental adhesive comprising synthesized HAp shows improved diametral tensile strength and high microshear bond strength. Energy dispersive X-ray mapping confirmed the uniform distribution of nanorods in the adhesive matrix. The synthesized hydroxyapatite nanorods have high colloidal stability in the dental adhesive solution.

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.