Patents by Inventor Carlino Panzera
Carlino Panzera has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9155597Abstract: Solid free form fabrication techniques such as fused deposition modeling and three-dimensional printing are used to create a dental restoration. Three-dimensional printing includes ink-jet printing a binder into selected areas of sequentially deposited layers of powder. Each layer is created by spreading a thin layer of powder over the surface of a powder bed. Instructions for each layer may be derived directly from a CAD representation of the restoration. The area to be printed is obtained by computing the area of intersection between the desired plane and the CAD representation of the object. All the layers required for an aesthetically sound restoration can be deposited concurrently slice after slice and sintered/cured simultaneously. The amount of green body oversize is equivalent to the amount of shrinkage which occurs during sintering or curing.Type: GrantFiled: July 31, 2008Date of Patent: October 13, 2015Assignee: Ivoclar Vivadent AGInventors: Dmitri G. Brodkin, Carlino Panzera, Paul Panzera
-
Publication number: 20120214134Abstract: A dental article includes yttria stabilized tetragonal zirconia polycrystalline ceramic, and no more than about 0.15 wt. % of one or more coloring agents of one or more of: Fe, Er, Co, Pr, Tb, Cr, Nd, Ce, V, Eu, Ho, Ni, and Cu, oxides thereof, and combinations thereof, whereby the dental article is provided with a color corresponding to a natural tooth shade; and wherein the dental article has a flexural strength of at least about 800 MPa. Corresponding methods are also described.Type: ApplicationFiled: April 27, 2012Publication date: August 23, 2012Applicant: IVOCLAR VIVADENT AGInventors: Ajmal Khan, Carlino Panzera, Dmitri G. Brodkin
-
Publication number: 20120196244Abstract: A dental article includes yttria stabilized tetragonal zirconia polycrystalline ceramic, and no more than about 0.15 wt. % of one or more coloring agents of one or more of: Pr, Tb, Cr, Nd, Co, oxides thereof, and combinations thereof, whereby the dental article is provided with a color corresponding to a natural tooth shade; and wherein the dental article has a flexural strength of at least about 800 MPa. Corresponding methods are also described.Type: ApplicationFiled: April 3, 2012Publication date: August 2, 2012Applicant: IVOCLAR VIVADENT AGInventors: Ajmal Khan, Carlino Panzera, Dmitri G. Brodkin
-
Publication number: 20120139141Abstract: A dental article includes yttria stabilized tetragonal zirconia polycrystalline ceramic, and no more than about 0.15 wt. % of one or more coloring agents of one or more of: Pr, Tb, Cr, Nd, Co, oxides thereof, and combinations thereof, whereby the dental article is provided with a color corresponding to a natural tooth shade; and wherein the dental article has a flexural strength of at least about 800 MPa. Corresponding methods are also described.Type: ApplicationFiled: March 13, 2007Publication date: June 7, 2012Inventors: Ajmal Khan, Carlino Panzera, Dmitri G. Brodkin
-
Patent number: 8178012Abstract: A dental article includes yttria stabilized tetragonal zirconia polycrystalline ceramic, and no more than about 0.15 wt. % of one or more coloring agents of one or more of: Pr, Tb, Cr, Nd, Co, oxides thereof, and combinations thereof, whereby the dental article is provided with a color corresponding to a natural tooth shade; and wherein the dental article has a flexural strength of at least about 800 MPa. Corresponding methods are also described.Type: GrantFiled: March 13, 2007Date of Patent: May 15, 2012Assignee: Ivoclar Vivadent AGInventors: Ajmal Khan, Carlino Panzera, Dmitri G. Brodkin
-
Patent number: 7943068Abstract: Blocks of material are prepared in a variety of shapes and sizes to be used in the fabrication of models for dental restorations. The material comprises a partially sintered ceramic material. The blocks are used to manufacture molds using CAD/CAM methods and equipment. The molds are useful in the manufacture of dental restorations using ceramics, metals, alloys, or powders thereof, and composite materials. The models milled from the blanks may be used to manufacture a variety of dental restorations including, but not limited to, crowns, bridges, space maintainers, tooth replacement appliances, orthodontic retainers, dentures, posts, jackets, inlays, onlays, facings, veneers, facets, implants, abutments, splints, partial crowns, teeth, cylinders, pins, and connectors.Type: GrantFiled: November 13, 2006Date of Patent: May 17, 2011Assignee: Ivoclar Vivadent, Inc.Inventor: Carlino Panzera
-
Publication number: 20100038807Abstract: Solid free form fabrication techniques can be utilized indirectly to manufacture substrates, dies, models, near-net shapes, shells, and wax-ups that are then used in the manufacture of dental articles. Digital light processing is the most preferred indirect method for the production of substrates. After the substrates are produced, various coating or deposition techniques such as gel casting, slip casting, slurry casting, pressure infiltration, dipping, colloidal spray deposition or electrophoretic deposition are used to manufacture the dental article.Type: ApplicationFiled: October 28, 2009Publication date: February 18, 2010Applicant: PENTRON CERAMICS, INC.Inventors: Dmitri Brodkin, Carlino Panzera, Arun Prasad, Grant P. Day, Stefan Borenstein
-
Publication number: 20100035215Abstract: A porcelain blank comprising 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 temperature from about 750° C. to about 1050° C. and a coefficient of thermal expansion from about 9×10?6/° C. to about 17.5×10?6/° C., and comprises: SiO2 57-67? Al2O3 7-15 K2O 7-15 Na2O 6-15 Li2O 0.5-3.Type: ApplicationFiled: September 2, 2009Publication date: February 11, 2010Applicant: PENTRON CERAMICS, INC.Inventors: Dmitri G. Brodkin, Carlino Panzera, Lisa M. Kaiser
-
Patent number: 7563397Abstract: Solid free form fabrication techniques such as fused deposition modeling and three-dimensional printing are used to create a shell or die used in the manufacture of a dental restoration. Three-dimensional printing includes ink-jet printing a binder into selected areas of sequentially deposited layers of powder. Each layer is created by spreading a thin layer of powder over the surface of a powder bed. Instructions for each layer may be derived directly from a CAD representation of the restoration. The area to be printed is obtained by computing the area of intersection between the desired plane and the CAD representation of the object. All the layers required for an aesthetically sound shell can be deposited concurrently slice after slice and sintered/cured simultaneously.Type: GrantFiled: June 18, 2004Date of Patent: July 21, 2009Assignee: Pentron Laboratory Technologies, LLCInventors: Martin L. Schulman, Carlino Panzera
-
Publication number: 20080318189Abstract: Solid free form fabrication techniques can be utilized indirectly to manufacture substrates, dies, models, near-net shapes, shells, and wax-ups that are then used in the manufacture of dental articles. Digital light processing is the most preferred indirect method for the production of substrates. After the substrates are produced, various coating or deposition techniques such as gel casting, slip casting, slurry casting, pressure infiltration, dipping, colloidal spray deposition or electrophoretic deposition are used to manufacture the dental article.Type: ApplicationFiled: July 31, 2008Publication date: December 25, 2008Applicant: IVOCLAR VIVADENT AGInventors: Dmitri Brodkin, Carlino Panzera, Arun Prasad, Grant P. Day, Stefan Borenstein
-
Publication number: 20070056467Abstract: Blocks of material are prepared in a variety of shapes and sizes to be used in the fabrication of models for dental restorations. The material comprises a partially sintered ceramic material. The blocks are used to manufacture molds using CAD/CAM methods and equipment. The molds are useful in the manufacture of dental restorations using ceramics, metals, alloys, or powders thereof, and composite materials. The models milled from the blanks may be used to manufacture a variety of dental restorations including, but not limited to, crowns, bridges, space maintainers, tooth replacement appliances, orthodontic retainers, dentures, posts, jackets, inlays, onlays, facings, veneers, facets, implants, abutments, splints, partial crowns, teeth, cylinders, pins, and connectors.Type: ApplicationFiled: November 13, 2006Publication date: March 15, 2007Applicant: PENTRON CERAMICS, INC.Inventor: Carlino Panzera
-
Patent number: 7011522Abstract: Ceramic precursor powders are combined with a binder and pressed into blocks or similar shapes to form green bodies. The ceramic powders consist of fairly uniform particles thoroughly dispersed to be essentially free of agglomerates such that it will sinter predictably and isotropically without appreciable distortion. The green bodies may be soft-sintered to a bisque density less than about eighty five percent of the final density. The soft-sintered blocks are then milled to a desired shape and sintered to a final density rendering a high strength dental restorative material. The material may be aluminum oxide, partially stabilized zirconium oxide, mixtures of the two, mullite or any suitable oxide that may be sintered to high strength (i.e., greater than 250 MPa).Type: GrantFiled: December 18, 2001Date of Patent: March 14, 2006Assignee: Pentron Ceramics, Inc.Inventors: Carlino Panzera, Dmitri Brodkin, Paul Panzera
-
Patent number: 6994549Abstract: 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 powder. Each layer is created by spreading a thin layer of powder over the surface of a powder bed. Instructions for each layer may be derived directly from a CAD representation of the restoration. The area to be printed is obtained by computing the area of intersection between the desired plane and the CAD representation of the object. All the layers required for an aesthetically sound restoration can be deposited concurrently slice after slice and sintered/cured simultaneously. The amount of green body oversize is equivalent to the amount of shrinkage which occurs during sintering or curing.Type: GrantFiled: October 5, 2001Date of Patent: February 7, 2006Assignee: Jeneric/Pentron IncorporatedInventors: Dmitri Brodkin, Carlino Panzera, Paul Panzera
-
Publication number: 20050127544Abstract: Lithium disilicate based glass-ceramics contain high strength ceramic components for use in the manufacture of dental products. The glass-ceramics have good pressability, i.e., the ability to be formed into dental products by heat-pressing using commercially available equipment. The strength of the dental articles is increased with the inclusion of the high strength ceramic components.Type: ApplicationFiled: October 8, 2004Publication date: June 16, 2005Inventors: Dmitri Brodkin, Carlino Panzera, Paul Panzera, Arun Prasad, Ajit Karmaker, Elie Zammarieh, Gregg Daskalon, Martin Schulman
-
Publication number: 20050110177Abstract: Solid free form fabrication techniques such as fused deposition modeling and three-dimensional printing are used to create a shell used in the manufacture of a dental restoration. Three-dimensional printing includes ink-jet printing a binder into selected areas of sequentially deposited layers of powder. Each layer is created by spreading a thin layer of powder over the surface of a powder bed. Instructions for each layer may be derived directly from a CAD representation of the restoration. The area to be printed is obtained by computing the area of intersection between the desired plane and the CAD representation of the object. All the layers required for an aesthetically sound shell can be deposited concurrently slice after slice and sintered/cured simultaneously.Type: ApplicationFiled: November 4, 2004Publication date: May 26, 2005Inventors: Martin Schulman, Carlino Panzera
-
Publication number: 20050023710Abstract: Solid free form fabrication techniques can be utilized indirectly to manufacture substrates, dies, models, near-net shapes, shells, and wax-ups that are then used in the manufacture of dental articles. Digital light processing is the most preferred indirect method for the production of substrates. After the substrates are produced, various coating or deposition techniques such as gel casting, slip casting, slurry casting, pressure infiltration, dipping, colloidal spray deposition or electrophoretic deposition are used to manufacture the dental article.Type: ApplicationFiled: June 22, 2004Publication date: February 3, 2005Inventors: Dmitri Brodkin, Carlino Panzera, Arun Prasad, Grant Day, Stefan Borenstein
-
Publication number: 20040262797Abstract: Solid free form fabrication techniques such as fused deposition modeling and three-dimensional printing are used to create a shell or die used in the manufacture of a dental restoration. Three-dimensional printing comprises includes ink-jet printing a binder into selected areas of sequentially deposited layers of powder. Each layer is created by spreading a thin layer of powder over the surface of a powder bed. Instructions for each layer may be derived directly from a CAD representation of the restoration. The area to be printed is obtained by computing the area of intersection between the desired plane and the CAD representation of the object. All the layers required for an aesthetically sound shell can be deposited concurrently slice after slice and sintered/cured simultaneously.Type: ApplicationFiled: June 18, 2004Publication date: December 30, 2004Inventors: Martin L. Schulman, Carlino Panzera
-
Publication number: 20040245664Abstract: A method for making a dental restoration by milling a dental model from a partially sintered ceramic material, applying dental material thereon, and curing the dental material on the model to obtain a dental restoration. The method can be used for forming a variety of dental restorations including, but not limited to, crowns, bridges, space maintainers, tooth replacement appliances, orthodontic retainers, dentures, posts, jackets, inlays, onlays, facings, veneers, facets, implants, abutments, splints, partial crowns, teeth, cylinders, pins, and connectors.Type: ApplicationFiled: October 24, 2003Publication date: December 9, 2004Inventor: Carlino Panzera
-
Publication number: 20040245663Abstract: 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 be applied to further form or adapt the ceramic tape to the shape of the mold. Heat is applied simultaneously with pressure or in a separate step to achieve high density and strength in the ceramic material. A vacuum atmosphere may be used with the application of pressure and/or heat. One or more layers of surface material such as porcelain or composite resin may be applied to the ceramic to form the dental restoration. The process is useful in the manufacture of dental materials or restorations including but not limited to orthodontic appliances, bridges, space maintainers, tooth replacement appliances, splints, crowns, partial crowns, dentures, posts; teeth, jackets, inlays, onlays, facing, veneers, facets, implants, abutments, cylinders, and connectors.Type: ApplicationFiled: September 10, 2003Publication date: December 9, 2004Inventors: Joseph A. MacDougald, Carlino Panzera, Weitao Jia, Dmitri Brodkin, Martin L. Schulman, Paul Panzera, Bruce Alpert
-
Publication number: 20040232576Abstract: A method of making a dental restoration comprising forming a ceramic core or an alloy framework; pressing a porcelain onto the core or framework, wherein the porcelain comprises an amorphous glass phase with a maturing temperature less than about 850° C., wherein the amorphous glass phase, in one embodiment, comprises: 1 Component Amount (wt. %) SiO2 55-75 B2O3 2.6-6 Al2O3 3-4.9 ZnO 0-3 CaO 0-3 MgO 0.5-3 ZrO2 0-3 BaO 0-2 Li2O 0.8-2 K2O 0-6.Type: ApplicationFiled: February 20, 2003Publication date: November 25, 2004Inventors: Dmtri Brodkin, Carlino Panzera, Paul Panzera