Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7335250 | Dental composites based on X-ray-opaque mixed oxides prepared by flame spraying The present invention relates to dental composites comprising at least one nanoparticulate mixed oxide (a) of SiO2 with X-ray-opaque metal oxides of one or more elements selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, ... | 02/26/2008 |
| 7316740 | Lithium silicate materials 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. ... | 01/08/2008 |
| 7314610 | Dental compositions having anti-stokes up converters and methods of use A dental composition can include at least one polymerizable resin and at least one anti-stokes up converter. Alternatively, a two-part composition can include at least one dental composition configured for placement onto a person's tooth, and at least one anti-stoke... | 01/01/2008 |
| 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 about 35 percent by weight. Other additives may be included such as pigm... | 10/09/2007 |
| 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 the coping. A method according to the invention of preparing the dent... | 06/12/2007 |
| 7210934 | Dental prosthesis made of composite material and method for making same The invention concerns dental prostheses. It concerns a method for making a dental prosthesis of composite material by forming an adhesive interface between a metallic support and a cured ceramic material less than 3 mm thick, forming an intermediate interface by tr... | 05/01/2007 |
| 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 dentin layer and the incisal layer. A method of producing the dental mol... | 11/21/2006 |
| 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 | 08/15/2006 |
| 7079914 | System and method for producing a three-dimensional body comprising bone or tissue-compatible material A system useful in producing a three-dimensional body comprising bone or tissue-compatible material includes a detection and analysis site which identifies and simulates a portion of a body in connection with an implantation situation. A production device produces a... | 07/18/2006 |
| 7008229 | Stainless steel dental crowns with a polyester/epoxy coating A dental crown that includes a stainless steel shell sized to cover a tooth portion of a patient and a polymeric coating including a polyester/epoxy hybrid composition. ... | 03/07/2006 |
| 6994549 | Dental restorations formed by solid free-form fabrication methods Solid free form fabrication techniques such as fused deposition modeling and three-dimensional printing are used to create a dental restoration. Three-dimensional printing comprises inkjet printing a binder into selected areas of sequentially deposited layers of pow... | 02/07/2006 |
| 6984261 | Use of ceramics in dental and orthodontic applications The invention relates to uses of glasses and glass-ceramics in dental and orthodontic applications. ... | 01/10/2006 |
| 6880296 | Photoinitiator system with titanocene initiators A visible light photopolymerizable composition comprising a) an aryliodonium salt and b) a titanocene derivate. These compositions can be used together with an epoxide resin as a dental composition. ... | 04/19/2005 |
| 6673958 | Multifunctional dentin bonding agent Novel unsaturated esters for use in dentistry as bonding agents are produced by a stepwise reaction of a cyclic dianhydride with a) unsaturated alcohols, b) unsaturated glycidyl ethers, and c) unsaturated isocyanates. The products used as bonding agents h... | 01/06/2004 |
| 6667112 | Method for the manufacture of dental restorations Dental restorations are fabricated using metal powder. Preferably, the metal powder is a high fusing metal and preferably, the metal powder comprises a non-oxidizing metal. The metal powder is applied to a die and is covered with a covering material such ... | 12/23/2003 |
| 6660073 | Method of manufacture of dental porcelain having small leucite crystallites A porcelain composition for dental restorations comprising a leucite crystallite phase and a glass matrix phase, wherein the leucite crystallites possess diameters not exceeding about 10 micron. Preferably, the porcelain composition has a maturing tempera... | 12/09/2003 |
| 6652281 | Dental materials Dental materials containing monomers and/or prepolymers can be subjected to a polymer-forming reaction. The dental materials comprise at least one initiating system and optionally comprise fillers, colorants, flow modifiers, stabilizers, ion-releasing sub... | 11/25/2003 |
| 6641398 | Dental materials containing a tear-off material Dental material containing a polymerizable component and a component applied superficially to the polymerizable component, which can be removed after the curing of the polymerizable material with accompanying formation of a rough surface.... | 11/04/2003 |
| 6635691 | Dental material containing a component which contracts during thermal treatment The invention relates to dental materials which contain filler and a polymerizable matrix and are characterized in that they additionally have a component which contracts during thermal treatment.... | 10/21/2003 |
| 6613437 | Two-component preparations containing epoxy compounds The invention relates to two-component preparations comprising components (I) and (II), wherein at least one component comprises epoxy compounds and the preparations cure by cationic polymerization, initiated by Lewis and/or Bronsted acids, after mixing o... | 09/02/2003 |
| 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 Amount (wt. %) ... | 04/29/2003 |
| 6527550 | Apparatus and method for producing a dental prosthetic with a device having a linear rotary bearing The present invention is directed to enhancing the accuracy with which tooth restorations are machined, using a device which can accurately copy mill a dental prosthetic blank from a previously formed dental prosthetic model, and which can closely replica... | 03/04/2003 |
| 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 ceramic component may better bond to a resin material, ceramic... | 07/02/2002 |
| 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 to the fibrous material to increase the surface area of t... | 08/07/2001 |
| 6251419 | Membrane system for controlled tissue regeneration in cases of diseases of the periodontium The invention relates to a membrane system for controlled tissue regeneration of the periodontium, comprising a resorbable polymer membrane and anti-adhesion molecules.... | 06/26/2001 |
| 6206959 | Single-solution adhesive resin formulations Single-solution adhesive resin formulations are made of predominantly dimethacrylates or diacrylates containing (predominantly) two carboxyl groups and a functionalized methacrylate or acrylate diluent monomer. A novel light-activated initiator can be use... | 03/27/2001 |
| 6168437 | Seal for hard tissue, producing apparatus therefor, and method for attaching seal on hard tissue A method for whitening teeth with a neat finishing, and a considerable durability can be provided at a low cost. Further, a method for easily making up nails can be provided. An apparatus of the present invention comprises a lower mold base for placing a ... | 01/02/2001 |
| 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 about 870° C. and CTEs in the range from about 12 to about... | 12/05/2000 |
| 6136881 | Photocuring resin composition for orthodontics A photocuring resin composition for orthodontics is disclosed, comprising: (a) 5~50% by weight of a urethane bond-free (meth)acrylate having an average molecular weight of 100~300 and having at least one unsaturated double bond; (b) 10~60% by weight of a ureth... | 10/24/2000 |
| 6132215 | High modulus hybrid fibers for dental restorations A hybrid fiber-reinforced structural component for dental restorations, wherein the hybrid reinforcing fibers comprise a core having a composite sheath bonded thereto. Preferably, the core comprises a material having a high modulus, such as tungsten, tant... | 10/17/2000 |
| 6106295 | High density polyethylene veneered crowns for children An esthetic preformed crown for children which uses layers of a custom crown material applied as a veneer over non-precious, semiprecious and precious casting metals fabricated for the casting of custom copings and as an alternative to porcelain, vitrioid... | 08/22/2000 |
| 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 first polar solvent, the ceramic particles constituting at... | 05/09/2000 |
| 6031016 | Dental adhesive A single package adhesive for tooth bonding application comprising a solvent-based homogeneous mixture of a) an ethylenically unsaturated functional and hygroscopically functional monomer; b) an ethylenically unsaturated functional and hygroscopically function... | 02/29/2000 |
| 6031015 | Dental materials based on liquid crystalline monomers A dental material based on polymerizable monomers is described which contains at least one polymerizable monomer which has liquid crystalline properties. Compared with traditional materials, the dental material displays a lower decrease in volume upon pol... | 02/29/2000 |
| 6010337 | Dental prosthesis with composite support shell and coating, preimpregnated fabric part, manufacturing method and machine The invention relates to a dental prosthesis comprising a support shell intended to cover a stump and an external finish coating covering the support shell, the prosthesis being characterized in that the support shell is comprised of a composite material ... | 01/04/2000 |
| 5975905 | Ceramic slurry composition for ceramic core of a dental prosthesis An improved method for simplifying a slip casting applied conventional all ceramic core molding process by molding an all ceramic core from a ceramic sheet. In the method, there is prepared a slurry which consists mainly of alumina, spinel, alumina/zircon... | 11/02/1999 |
| 5962703 | Functionalized bicyclic (meth)acrylate, a method of making a bicyclic (meth)acrylate, and its uses Functionalized bicyclic (meth)acrylates with norbornenyl or norbornadienyl groups are described, which may be cured with radicals at room temperature and are particularly suitable as an adhesion-promoting component of dental adhesives.... | 10/05/1999 |
| 5951293 | Dental prosthesis with composite support shell and coating, preimpregnated fabric part, manufacturing method and machine A fabric part preimpregnated with a matrix before hardening designed to form, after shaping, hardening and depositing of an external finishing coating, a support shell of a dental prosthesis. The matrix has at least one component of the same nature as at ... | 09/14/1999 |
| 5944884 | Dental porcelain composition A porcelain composition for dental restorations comprising a leucite crystallite phase and a glass matrix phase, wherein the leucite crystallites possess diameters not exceeding about 10 micron. Preferably, the porcelain composition has a maturing tempera... | 08/31/1999 |
| 5945558 | Method of making amino acid acrylic monoesters A method is disclosed for making dibasic amino acid monoesters useful in repair of teeth in which a dibasic amino acid is partially esterified with an allylic acrylic compound in the presence of an acidic ion-exchange resin at ambient temperature. The inv... | 08/31/1999 |
