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: 9155597
    Abstract: 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: Grant
    Filed: July 31, 2008
    Date of Patent: October 13, 2015
    Assignee: Ivoclar Vivadent AG
    Inventors: Dmitri G. Brodkin, Carlino Panzera, Paul Panzera
  • Publication number: 20120214134
    Abstract: 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: Application
    Filed: April 27, 2012
    Publication date: August 23, 2012
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Ajmal Khan, Carlino Panzera, Dmitri G. Brodkin
  • Publication number: 20120196244
    Abstract: 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: Application
    Filed: April 3, 2012
    Publication date: August 2, 2012
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Ajmal Khan, Carlino Panzera, Dmitri G. Brodkin
  • Publication number: 20120139141
    Abstract: 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: Application
    Filed: March 13, 2007
    Publication date: June 7, 2012
    Inventors: Ajmal Khan, Carlino Panzera, Dmitri G. Brodkin
  • Patent number: 8178012
    Abstract: 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: Grant
    Filed: March 13, 2007
    Date of Patent: May 15, 2012
    Assignee: Ivoclar Vivadent AG
    Inventors: Ajmal Khan, Carlino Panzera, Dmitri G. Brodkin
  • Patent number: 7943068
    Abstract: 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: Grant
    Filed: November 13, 2006
    Date of Patent: May 17, 2011
    Assignee: Ivoclar Vivadent, Inc.
    Inventor: Carlino Panzera
  • Publication number: 20100038807
    Abstract: 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: Application
    Filed: October 28, 2009
    Publication date: February 18, 2010
    Applicant: PENTRON CERAMICS, INC.
    Inventors: Dmitri Brodkin, Carlino Panzera, Arun Prasad, Grant P. Day, Stefan Borenstein
  • Publication number: 20100035215
    Abstract: 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: Application
    Filed: September 2, 2009
    Publication date: February 11, 2010
    Applicant: PENTRON CERAMICS, INC.
    Inventors: Dmitri G. Brodkin, Carlino Panzera, Lisa M. Kaiser
  • Patent number: 7563397
    Abstract: 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: Grant
    Filed: June 18, 2004
    Date of Patent: July 21, 2009
    Assignee: Pentron Laboratory Technologies, LLC
    Inventors: Martin L. Schulman, Carlino Panzera
  • Publication number: 20080318189
    Abstract: 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: Application
    Filed: July 31, 2008
    Publication date: December 25, 2008
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Dmitri Brodkin, Carlino Panzera, Arun Prasad, Grant P. Day, Stefan Borenstein
  • Publication number: 20070056467
    Abstract: 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: Application
    Filed: November 13, 2006
    Publication date: March 15, 2007
    Applicant: PENTRON CERAMICS, INC.
    Inventor: Carlino Panzera
  • Patent number: 7011522
    Abstract: 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: Grant
    Filed: December 18, 2001
    Date of Patent: March 14, 2006
    Assignee: Pentron Ceramics, Inc.
    Inventors: Carlino Panzera, Dmitri Brodkin, Paul Panzera
  • Patent number: 6994549
    Abstract: 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: Grant
    Filed: October 5, 2001
    Date of Patent: February 7, 2006
    Assignee: Jeneric/Pentron Incorporated
    Inventors: Dmitri Brodkin, Carlino Panzera, Paul Panzera
  • Publication number: 20050127544
    Abstract: 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: Application
    Filed: October 8, 2004
    Publication date: June 16, 2005
    Inventors: Dmitri Brodkin, Carlino Panzera, Paul Panzera, Arun Prasad, Ajit Karmaker, Elie Zammarieh, Gregg Daskalon, Martin Schulman
  • Publication number: 20050110177
    Abstract: 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: Application
    Filed: November 4, 2004
    Publication date: May 26, 2005
    Inventors: Martin Schulman, Carlino Panzera
  • Publication number: 20050023710
    Abstract: 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: Application
    Filed: June 22, 2004
    Publication date: February 3, 2005
    Inventors: Dmitri Brodkin, Carlino Panzera, Arun Prasad, Grant Day, Stefan Borenstein
  • Publication number: 20040262797
    Abstract: 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: Application
    Filed: June 18, 2004
    Publication date: December 30, 2004
    Inventors: Martin L. Schulman, Carlino Panzera
  • Publication number: 20040245664
    Abstract: 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: Application
    Filed: October 24, 2003
    Publication date: December 9, 2004
    Inventor: Carlino Panzera
  • Publication number: 20040245663
    Abstract: 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: Application
    Filed: September 10, 2003
    Publication date: December 9, 2004
    Inventors: Joseph A. MacDougald, Carlino Panzera, Weitao Jia, Dmitri Brodkin, Martin L. Schulman, Paul Panzera, Bruce Alpert
  • Publication number: 20040232576
    Abstract: 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: Application
    Filed: February 20, 2003
    Publication date: November 25, 2004
    Inventors: Dmtri Brodkin, Carlino Panzera, Paul Panzera