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7166548 |
Apatite glass ceramic based on siliceous oxyapatites
Apatite glass ceramic which contains at least one glass phase and at least one apatite phase and is characterized in that at least one of the apatite phases is a phosphate- and fluorine-free...
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7153482 |
Rod shaped apatite crystals having a specific length-to-width ratio
The rod-shaped apatite crystals of the formula Ca 5 (PO 4 ) 3 (OH) x F y have the following features
a) the length-to-breadth ratio of the crystals is at least ≧5 and b) x+y=1, where if x or...
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7148267 |
Dye composition for the individual dying of prostheses plastics
Kit for the preparation of dental prostheses which contains (i) polymerizable matrix material, (ii) filler and (iii) at least one dye composition in physically separate form.
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7128576 |
Adhesion promoters for silicone materials
The invention relates to copolymers, obtained by the copolymerisation of SiH-group-containing siloxanes with vinyl-group-containing compounds. The copolymers comprise at least two SiH groups. The...
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7115163 |
Magnesium ammonium phosphate cement composition
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...
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7098259 |
Cationically curable dental materials
The invention relates to a polymerizable dental material containing: (a) 3 to 80 wt. % of one or more cationically curable monomers; (b) 3 to 90 wt. % of one or more radio-opaque fillers; (c) 0.01...
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7094282 |
Calcium phosphate cement, use and preparation thereof
A calcium phosphate cement suitable for use in dental and bone prosthesis is disclosed, which include calcium phosphate particles having a diameter of 0.05 to 100 microns, wherein said calcium...
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7091142 |
Glass-ceramic and its production and use
The invention encompasses a glass-ceramic comprising a continuous glass phase and a crystal phase comprising tetragonal leucite, wherein the glass-ceramic has a crack-free glass phase and a crystal...
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7090721 |
Use of nanoparticles to adjust refractive index of dental compositions
The present invention features ionomer compositions containing nanofillers that provide the composition with desirable aesthetic properties (e.g., optical translucency). The compositions can be...
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7091259 |
Dental fillers, pastes, and compositions prepared therefrom
The present invention provides a dental paste, methods of making and using the dental paste, and compositions prepared therefrom. The dental paste includes (a) a filler including porous,...
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7090722 |
Acid-reactive dental fillers, compositions, and methods
Acid-reactive dental fillers, and methods of making and using such fillers, are disclosed. The acid-reactive dental fillers include a trivalent metal, oxygen, fluorine, an alkaline earth metal,...
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7090720 |
Use of bioactive glass in dental filling material
The dental filling material for a permanent dental filling contains up to 87 percent by weight of a mixture of bioactive glass particles capable of forming a hydroxylapatite layer and conventional...
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7087103 |
Method of using gas pressure to reduce porosity in composite materials
Methods for reducing the number and/or size of gas bubbles in a material are disclosed. The disclosed methods involve subjecting materials to pressure for a period of time. The methods have been...
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7083672 |
Method and product for phosphosilicate slurry for use in dentistry and related bone cements
The present invention is directed to magnesium phosphate ceramics and their methods of manufacture. The composition of the invention is produced by combining a mixture of a substantially dry powder...
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7081161 |
Biocompatible cement containing reactive calcium phosphate nanoparticles and methods for making and using cement
A cement powder is disclosed that contains reactive tricalcium phosphate nanoparticles and other ingredients required to form a cementous material. Methods of making the reactive tricalcium...
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RE39196 |
Nanocrystalline apatites and composites, prostheses incorporating them, and method for their production
Methods for synthesis of nanocyrstalline 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...
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7074730 |
Bioactive rhenanite glass ceramic
The invention relates to a bioactive rhenanite glass ceramic which is characterized by a high content of P 2 O 5 , CaO and Na 2 O and is particularly suitable as bone replacement material in...
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7066999 |
Process for producing fast-setting, bioresorbable calcium phosphate cements
A fast-setting, bioresorbable calcium phosphate cement is prepared by a process which can be carried out with a heat treatment up to 1000° C. on a mixture of a wetting solution and a calcium...
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7041164 |
Dental etch solutions
Etching compositions, curable compositions, packaged products and methods of use for the treatment of bone substrate, i.e., teeth, are described. The etch solutions generally include an inorganic...
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7025824 |
Ceramic material and process for manufacturing
A chemically bonded ceramic material based on calcium aluminate hydrate with additives of primarily calcium titanate, but also chemically similar compounds. The material is a biocompatible material...
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7022173 |
Use of ceramics in dental and orthodontic applications
The invention relates to uses of glasses and glass-ceramics in dental and orthodontic applications.
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7018460 |
Self-hardening calcium phosphate materials with high resistance to fracture, controlled strength histories and tailored macropore formation rates
A bone replacement material and therapy comprises the combination of calcium phosphate compounds and two or more soluble fillers in the form of fibers, mesh or other materials which have the dual...
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7001932 |
Dental composite restorative material and method of restoring a tooth
A composite material is provided which, while having an unusually high filler content may be extruded from a dental syringe and remains easily adaptable in the dental cavity. When materials of the...
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6969424 |
Method of producing a chemically bound ceramic product, and product
Method for the production of a chemically bound ceramic material by means of reaction between a binding phase of one or more powdered binding agents and a liquid reacting with these binding agents,...
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6965689 |
Image based volumetric measuring device
A measuring device for calculating sample volumes and changes in sample volumes is disclosed. The device includes a rotatable platform upon which the sample is placed and rotated in increments with...
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6953832 |
Dental materials based on polyfunctional amides
Dental material containing an amide of the general formula BX n in which B stands for a hydrocarbon radical with 1 to 5 carbon atoms, which can contain one or more of the groups O, S, NH, CO—NH,...
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6946010 |
Method for making abrasive compositions and products thereof
Method of making abrasive compositions comprised of water-insoluble abrasive polishing agents suspended in an aqueous medium in combination, which avoids the need and associated cost of dry milling...
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6936642 |
Dental materials
The invention relates to compositions containing:
(a) 14 to 55 wt.-% fillers, (b) 3 to 35 wt.-% of at least one mono- or polyethylenically unsaturated compound which is not a urethane...
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6929692 |
Calcium phosphate cement composition and a method for the preparation thereof
The invention describes a new calcium phosphate cement powder, whose composition can best be described over the Ca/P molar ratio range of 1.35 to 1.40, most preferably 1.39, and whose two...
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6902608 |
Dental material containing phosphonic acids
The invention relates to dental materials which contain hydrolysis-resistant phosphonic acids with ethylenically unsaturated double bonds and which are especially suitable for use as adhesion...
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6890968 |
Prepolymerized filler in dental restorative composite
A dental composite having high filler loading and low shrinkage thereby providing good strength and marginal integrity. Through the use of prepolymerized filler particles in combination with a...
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6881258 |
Mixture for the production of a high-expansion stone die
The present invention refers to a mixture comprising alpha CaSO 4 ×½ H 2 O, CaSO 4 ×2 H 2 O, a combination of a hardening accelerator, a hardening retarder and a setting expansion inhibitor, and...
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6872244 |
Paste type dental glass ionomer cement composition
A paste type dental glass ionomer cement composition in paste type using no polymerizable monomer, that is good in operationality with excellent inherent characteristics of glass ionomer cement...
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6869984 |
Dental composition kit
The invention refers to a dental composition kit which comprises a combination of (A) a one-pack primer composition containing (a) an acid group-having polymerizable monomer and (b) an aromatic...
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6860932 |
Dental and medical cement
Cement materials useful in dental and medical fields with improved mechanical properties is described. The cement material includes fluoroaluminosilicate powder and poly(acrylic acid) liquid....
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6855750 |
Method and apparatus for creating molds
Minute fibers are added to an alginate to form a fiber-alginate mixture or compound. The minute fibers may be man made such as nylon or may be natural such as hemp. The fiber-alginate mixture or...
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6855197 |
Tooth cavity restoration with nanocomposite of epoxy resin and nanoparticles
A method of restoring a tooth cavity is conducted by a direct or indirect method with a visible light curable nanocomposite of a dental restorative material with a low polymerization shrinkage,...
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6852822 |
Hydrolyzable silanes and polymerizable silanes with low viscosity and use thereof
The invention provides processes for making low viscosity condensates, condensates per se, and processes for making polymers from these condensates. The invention also encompasses the polymer...
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6849112 |
Inorganic particles as a dental material and a method of producing the same
Amorphous inorganic particles as a dental material includes silica and inorganic oxide(s) other than silica and has high x-ray impermeability. The inorganic particles as a dental material includes...
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6846493 |
Synthetic biomaterial compound of calcium phosphate phases particularly adapted for supporting bone cell activity
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...
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6840995 |
Process for producing fast-setting, bioresorbable calcium phosphate cements
A fast-setting, bioresorbable calcium phosphate cement is prepared by a process which can be carried out with a heat treatment up to 1000° C. on a mixture of a wetting solution and a calcium...
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6821916 |
Ceramics for in vivo use
The invention is intended to introduce cells easily into a ceramics for in vivo use. Also, the invention provides a ceramics for in vivo use which has a good affinity to a living body and no...
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6818573 |
Method for molding dental restorations and related apparatus
The present invention is concerned with a process for the formation of dental restorations from glass-ceramic materials and the resulting dental restorations. A dental restoration is formed by...
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6818682 |
Multi-part dental compositions and kits
The inventive dental composition comprises (a) a part A comprising at least one polyacid and at least one polymerizable component; and (b) a part B comprising water, wherein the composition further...
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6814794 |
Temporary dental cements having reduced tooth sensitivity
Temporary dental cements used to temporarily affix a dental prosthesis or appliance to a tooth or other dental substrate includes one or more soothing agent to prevent or reduce tooth sensitivity....
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6802894 |
Lithium disilicate glass-ceramics
This invention is directed to lithium disilicate (Li 2 Si 2 O 5 ) based glass-ceramics comprising silica, lithium oxide, alumina, potassium oxide and phosphorus pentoxide. The glass-ceramics are...
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6797048 |
Method for preparing glass-ceramic
The present invention provides a method for preparing a glass-ceramic containing leucite crystals, comprising the steps of: mixing (1) a glassy material comprising 53 to 65 wt. % of SiO 2 , 13 to...
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6793725 |
Premixed calcium phosphate cement pastes
A bone or dental implant material in the form of a paste includes a mixture of calcium phosphate powders, that are capable of forming hydroxyapatite, with liquid glycerol and hydroxypropyl...
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6787584 |
Dental/medical compositions comprising degradable polymers and methods of manufacture thereof
Curable compositions comprising degradable macromonomers having one or more terminal acrylate or methacrylate functionality, a curing composition, a filler composition comprising bioactive...
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6784224 |
Paste-like polymerizable composition
A paste-like polymerizable composition in which two or three pastes are intimately mixed with each other to polymerize, the pastes do not gel and their polymerization curing times being stable,...
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