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7279238 |
Pressable glass-ceramics with textured microstructure
A pressable dental ceramic comprising a mixture of glass and glass-ceramic frits. A refractory filler is also combined with the frits. The dental ceramic contains an amount of leucite less than...
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7255562 |
Dental mill blanks
A dental mill blank comprising a resin and a filler, wherein the blank is fabricated such that it passes a Thermal Shock Test. The mill blank is substantially free of cracks and discontinuities....
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7229286 |
Composite veneered cast glass-ceramic dental construct
A dental construct according to the present invention includes a glass-ceramic coping having a resin composite material in the form of a veneer bonded or otherwise affixed to at least a portion of...
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7189076 |
Denture and process for manufacturing artificial teeth for dentures
A method of making an artificial tooth for a denture and the tooth so made, the method including making a form tooth of a plastic tooth or an existing denture tooth, using the form tooth to make a...
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7141616 |
Radically curable urethane prepolymers and their use in dental materials
The invention relates to urethane prepolymers, obtainable by reaction of:
(A) 15 to 85 wt.-% of one or more α,ω-terminated poly(meth)acrylate diols, (B) 0 to 30 wt.-% of one or more...
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7140882 |
Method of producing low molecular weight chitin/chitosan and method of producing an osteoconduction substance
By irradiating 60 Co γ ray to chitin/chitosan, chitin/chitosan having high molecular weight is separated or decomposed into low molecular weight chitin/chitosan. A method of producing an...
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7137818 |
Dental molding, in particular an artificial tooth
A dental molding, in particular an artificial tooth, having an outer incisal layer and a dentin layer beneath that, characterized in that a layer of fluorescent material is provided between the...
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7099804 |
Automated horizontally structured manufacturing process design modeling
Disclosed is a method of horizontally structured automated CAD/CAM manufacturing process, comprising: selecting a blank for machining into an actual part; establishing a coordinate system; creating...
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7091258 |
Filler on the basis of particulate composite
Particulate composite material with an average particle size of 20 to 50 μm and a maximum content of particles with a size of <10 μm of 10 wt.-% and its use for the preparation of dental...
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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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6923649 |
Artificial tooth and a process for making an artificial tooth
An artificial tooth is provided that includes a cutting mass brought into hardened condition by light polymerization, a tooth bone mass brought into hardened condition by light polymerization, and...
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6846181 |
Prefabricated components for dental appliances
Ready-to-use preshaped, prefabricated cured structural components are prepared in a variety of shapes and sizes to be used in the fabrication of dental appliances. Preferably the structural...
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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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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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6761760 |
Dental porcelains
Opaque porcelains for use with metal cores in the manufacture of PFM restorations. The porcelains exhibit a coefficient of thermal expansion (CTE) substantially equal to or slightly above the CTE...
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6713421 |
Blank comprised of a zirconium oxide ceramic with an oxide additive and the use thereof
The invention relates to blanks comprising zirconium oxide-based ceramic with an addition of 0.1 to 0.50 wt.-% of at least one of the oxides of the elements aluminium, gallium, germanium, indium...
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6648645 |
Method for manufacturing dental restorations
A ceramic tape is provided in its green state so that it is malleable and formable to a mold for forming a dental restoration, but will not break or crack as it is applied to the mold. Pressure may...
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6638069 |
Shaping cap for dental pin structures
Shaping cap made of ceramic, metal or plastic material, which is suitable as a solid constituent of dental pin structures.
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6620747 |
Low temperature-sintering apatite glass ceramic
A low-temperature-sintering apatite glass ceramic is described which is characterized by a high chemical stability, a low coefficient of expansion as well as high translucency and which is...
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6599125 |
Prefabricated components for dental appliances
Ready-to-use preshaped, prefabricated cured components and hybrid components are prepared in a variety of shapes and sizes to be used in the fabrication of dental appliances. Preferably the...
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6554615 |
Porcelain compositions for low expansion all-porcelain cores and alloys
A dental porcelain composition comprises an amorphous glass phase with a maturing temperature less than about 850° C., wherein the amorphous glass phase, in one embodiment, comprises: Component...
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6455451 |
Pressable 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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6450813 |
Repair porcelain product, composition and method
The invention provides a dental porcelain product, comprising a core layer of core material and a repair layer of repair material. The core layer has a higher melting temperature than the repair...
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6426114 |
Sol-gel calcium phosphate ceramic coatings and method of making same
This invention relates to novel sol-gel calcium phosphate, in particular hydroxyapatite ceramic coatings and processes of making same at low temperature. Such coatings are useful, inter alia, for...
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6413660 |
High-strength dental restorations
High strength ceramic components for use in dental applications are provided with a bonding layer disposed thereon to increase the bonding properties of the ceramic component in order that the...
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6344061 |
Device for incorporation and release of biologically active agents
The invention provides an implantable device coated with a layer of calcium phosphate and optionally one or more biologically active substances such as growth factors, lipis, (lipo)polysaccharides,...
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6342458 |
Lithium disilicate glass ceramics dental product
High-strength sinterable lithium disilicate glass ceramics are described which can be further processed in particular by pressing in the viscous state to shaped dental products.
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6342302 |
Ceramic dental restoration
A ceramic restoration based on a leucitic glass-ceramic, which is characterized in that the glass-ceramic includes by way of components 40-95 wt.-% SiO 2 5-25 wt.-% Al 2 O 3 5-25 wt.-% K 2 O 0-25...
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6315567 |
Method of restoring a tooth
A method of restoring a tooth is provided, method comprises the steps of dispensing a curable composition from an applicator and curing the curable composition. The applicator has a needle with a...
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6306784 |
Alkali silicate glass
Alkali silicate glasses are described which, in view of their good chemical stability and their optical properties and processing properties, are particularly suitable as a coating or veneering...
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6280863 |
Translucent apatite glass ceramic
An apatite glass ceramic is described which is characterized by good chemical stability, a low expansion coefficient and high translucence, and is particularly suitable, by itself or together with...
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6270562 |
Filler material for dental composites
A filler material comprising a fibrous material and one or more forms of surface-modifying particles for use in dental composites and dental restorations. The surface-modifying particles are bonded...
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6224662 |
Use of novel glass compositions in preparing dental glass pillars and support pillars, and method for producing the glass pillars
The present invention relates to the use of novel glass compositions in preparing dental glass pillars and support pillars, and method for producing the glass pillars. The glass material comprises...
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6206958 |
Dental porcelain compositions
Porcelain compositions of the present invention comprises particulate of one or more glass or glass-ceramic powder components. Additionally, one or more opacifing agents, pigments, fluorescing...
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6200137 |
Chemically stable translucent apatite glass ceramic
An apatite glass ceramic is described which is characterized by good chemical stability, a low expansion coefficient and high translucence, and is particularly suitable, by itself or together with...
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6196843 |
Dental composition and artificial tooth with the use of dental composition
A dental composition useful for an artificial tooth and an artificial tooth with use of the said dental composition by which color stability, coloring resistance and aesthetic merit can be...
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6155830 |
Dental restorations
A dental restoration comprising a porcelain composition, comprising a glassy matrix and leucite crystallites embedded therein, and having maturing temperatures in the range from about 680° C. to...
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6126732 |
Dental prosthesis
A shaped, high-strength dental ceramic prothesis is made by pressing a molding composition comprising about 1-50 wt % glass particles and about 50-99 wt % ceramic particles to form a ceramic frame,...
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6087282 |
Non-greening porcelain compositions
Porcelain compositions of the present invention possess non-greening properties and comprise one or more glass or glass-ceramic components. Additionally, an oxygen release agent is included in the...
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6080692 |
High-strength, translucent mica glass-ceramics
The invention relates to a glass ceramic in which mica and ZrO 2 are present in crystallized form, containing: K 2 O: 0-9% by weight Na 2 O: 0-9% by weight with the condition that Na 2 O...
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6059949 |
Method of electrophoretic deposition of ceramic bodies for use in manufacturing dental appliances
A method for electrophoretic deposition of ceramic particles as a green body shaped as a dental appliance, the method comprising the steps of (a) forming a suspension of the ceramic particles in a...
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6054400 |
Bioactive glasses and their use
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5994246 |
Low expansion feldspathic porcelain
A feldspathic porcelain composition is provided which comprises a continuous glassy matrix phase and a discontinuous, substantially uniformly dispersed cubic leucite crystalline phase, said...
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5980625 |
Calcium phosphate composition and a setting solution therefor
The present invention provides a setting solution for calcium phosphate cement as well as a calcium phosphate cement composition. The setting solution does not cause disintegration of the...
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5925180 |
ZrO.sub.2 -containing glass-ceramic
A ZrO 2 -containing glass ceramic is described, the main crystalline phase of which is formed by ZrO 2 and which has at least one further crystalline phase, and which can be used in particular in...
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5891233 |
Use of bioactive silicious glass and new compositions containing bioactive silicious glass
A pharmaceutical preparation, including a glass phase which is bioactive silica containing glass in the form of a paste, suspension or solution mixed in a physiologically suitable liquid or bound...
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5791901 |
Artificial tooth and manufacturing method of an acrylic resin denture
Disclosed is an artificial tooth that is structured such that the tooth is firmly held in its proper position in a core until a plate resin is fully polymerized and cured in succession to the...
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5775912 |
Method of producing a dental restoration using CAD/CAM
A method of making a dental porcelain restoration comprises providing a soft-sintered dental porcelain pellet; milling the soft-sintered pellet under the control of a CAD/CAM system to provide a...
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5713994 |
Low-fusing temperature porcelain, compositions, prostheses, methods and kits
A low-fusing temperature porcelain compositions, methods of use thereof on metal or porcelain substrates to form dental prostheses and kits therefor. Compositions of the invention have a fusing...
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5698019 |
Leucite-containing phosphosilicate glass-ceramic
A leucite-containing phosphosilicate glass-ceramic is described which, in addition to a leucite crystalline phase and at least one further crystalline phase, also contains one or more glass phases.
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