WO2009120752A1 - Composition d'alliage dentaire compatible avec la zircone - Google Patents

Composition d'alliage dentaire compatible avec la zircone Download PDF

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Publication number
WO2009120752A1
WO2009120752A1 PCT/US2009/038197 US2009038197W WO2009120752A1 WO 2009120752 A1 WO2009120752 A1 WO 2009120752A1 US 2009038197 W US2009038197 W US 2009038197W WO 2009120752 A1 WO2009120752 A1 WO 2009120752A1
Authority
WO
WIPO (PCT)
Prior art keywords
alloy
dental
noble metal
titanium
zirconia
Prior art date
Application number
PCT/US2009/038197
Other languages
English (en)
Inventor
Paul J. Cascone
Arun Prasad
Original Assignee
The Argen Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Argen Corporation filed Critical The Argen Corporation
Publication of WO2009120752A1 publication Critical patent/WO2009120752A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/02—Alloys based on gold
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C14/00—Alloys based on titanium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/04—Alloys based on a platinum group metal

Definitions

  • the current invention is directed to a novel dental alloy that may be used with zirconia compatible porcelains; and particularly to a titanium-noble metal alloy for such use.
  • the current invention is directed to a novel dental alloy that may be used with stabilized zirconia compatible porcelains, and more particularly to titanium-noble metal alloys for use with such materials.
  • the dental alloy of the current invention comprises up to about 75 wt % of titanium and at least 25 wt% of at least one noble metal selected from the group consisting of gold and the platinum group metals.
  • the noble metal may be, for example, ruthenium or palladium.
  • the dental alloy further contains at least one additional alloying material selected from the group consisting of aluminum, nickel, chromium, cobalt, molybdenum, niobium, vanadium, hafnium, zirconium, manganese, tin, iron and rare earth elements.
  • the dental alloy has a thermal expansion coefficient of from about 9 to 1 1 x 10 6 at 25-600 0 C.
  • the dental alloy is nitrided.
  • the dental alloy may be used with either additive or subtractive manufacturing processes.
  • the additive process is a rapid prototyping process such as selective laser melting.
  • the subtractive process is a milling process such as CAD/CAM milling.
  • the invention is directed to a method of forming a dental device using a manufacturing process, such as a rapid prototyping process or a milling process, that includes providing an alloy comprising about 75 wt% of titanium and at least 25 wt% of at least one noble metal selected from the group consisting of gold and the platinum group metals, and shaping the alloy using the rapid prototyping process into a dental device.
  • a manufacturing process such as a rapid prototyping process or a milling process
  • the invention is directed to a dental device made using an alloy comprising about 75 wt% of titanium and at least 25 wt% of at least one noble metal selected from the group consisting of gold and the platinum group metals that may be used in conjunction with a zirconia compatible porcelain.
  • zirconia requires a special porcelain with a low thermal expansion coefficient since the zirconia has a thermal expansion coefficient of about 10 (x10 "6 at 25-600°C), whereas traditional porcelains are designed to match alloys with expansion coefficients of 14 to 15 (x10 "6 at 25-600 0 C). Accordingly, it would be desirable to have an alloy that would be compatible with the porcelains currently used with zirconia copings. Such an alloy would have a thermal expansion coefficient of around 10 (x10 "6 at 25-600 0 C) and would allow dental labs to stock a single type of porcelain.
  • the current invention provides titanium noble metal alloys that are capable of use with such zirconia compatible porcelains.
  • the invention is directed to a composition comprising up to about 75 wt% of titanium and about 25 wt% of at least one noble metal alloy, selected from the group of gold and the platinum group elements; the invention is also directed to dental devices made using such a composition.
  • This weight percent can be converted into atomic percent for convenience.
  • a titanium-palladium alloy with a composition of 75 wt% titanium and 25 wt% palladium in accordance with the invention would have a composition in atomic percentages of about 87 at% titanium and 13 at% palladium.
  • the composition in atomic percentages would be approximately the same.
  • Noble metal additions while being helpful to adjust thermal properties of titanium, also dramatically improve the electrochemical properties of titanium.
  • alloys in accordance with the invention may have additional alloying elements common to titanium and noble alloys (e.g., 0-15% selected from the group of aluminum, nickel, chromium, cobalt, molybdenum, niobium, vanadium, hafnium, zirconium, manganese, tin, iron and rare earth elements etc.] to provide for modified properties.
  • additional alloying elements common to titanium and noble alloys e.g., 0-15% selected from the group of aluminum, nickel, chromium, cobalt, molybdenum, niobium, vanadium, hafnium, zirconium, manganese, tin, iron and rare earth elements etc.
  • the titanium-noble alloys of the inventive composition provide materials uniquely suited for a wide variety of dental prosthesis manufacturing techniques, including additive processes, for example, rapid prototyping and subtractive processes, for example, advanced milling. In all these techniques, the alloys in accordance with the invention solve the problem described above in connection with the thermal expansion coefficient of zirconia.
  • titanium has a thermal expansion coefficient of about 9.7 (x10 ⁇ 6 at 25-600°C], below that of zirconia, while the noble metals have thermal expansion coefficients that range from about 9 x 10 "6 (Ru at 25-600 0 C) to about 12 x 10 "6 (Pd at 25-600 0 C).
  • the noble metal i.e., palladium, ruthenium, etc.
  • the noble metal stabilizes the high temperature form of the titanium. This situation is expected to provide high temperature creep resistance allowing for porcelains to be pressed onto the alloy as well as baked.
  • the formation of inter-metallics is expected to harden the alloy and provide sufficient strength for the dental restoration.
  • alloys in accordance with the invention may be used in connection with already existing rapid prototyping processes.
  • Most of the commercially available selective laser melting systems allow for the use of titanium alloys or titanium powders.
  • One exemplary system is the MCP Realizer SM manufactured by Mining and Chemical Products Limited of England that operates on the Titanium SLM alloy, such as that manufactured by Electro Optical Systems GmbH.
  • the efficiency of the existing rapid prototyping technology can be readily exploited with the alloy compositions of the invention for which there is a built-in market demand.
  • the alloy may be nitrided as described by Knapp in US Patent No. 6,994-,55O, the disclosure of which is incorporated herein by reference, producing a pleasant yellow color on the alloy surface. This eliminates the black color of the titanium oxide, which can sometimes be difficult to cover with porcelains. By making the surface yellow, the porcelain shades appear " warmer" and more natural.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dental Preparations (AREA)
  • Dental Prosthetics (AREA)

Abstract

L'invention porte: sur un nouvel alliage dentaire de titane et de métal noble utilisable avec des porcelaines compatibles avec la zircone; sur des dispositifs dentaires faits de cet alliage; et sur un procédé de formation d'un dispositif dentaire dans lequel on utilise un tel alliage. D'une manière générale un tel alliage comprend jusqu'à environ 75 % en poids de titane et environ 25 % en poids d'au moins un métal noble, ce qui fait que son coefficient de dilatation thermique est compris entre 9 et 11 x 10-6 à 25-600 °C.
PCT/US2009/038197 2008-03-28 2009-03-25 Composition d'alliage dentaire compatible avec la zircone WO2009120752A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4054508P 2008-03-28 2008-03-28
US61/040,545 2008-03-28

Publications (1)

Publication Number Publication Date
WO2009120752A1 true WO2009120752A1 (fr) 2009-10-01

Family

ID=41114316

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/038197 WO2009120752A1 (fr) 2008-03-28 2009-03-25 Composition d'alliage dentaire compatible avec la zircone

Country Status (1)

Country Link
WO (1) WO2009120752A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013134594A1 (fr) * 2012-03-09 2013-09-12 Ivoclar Vivadent, Inc. Alliages à base de palladium
WO2013155480A1 (fr) * 2012-04-13 2013-10-17 The Argen Corporation Procédé de fabrication d'une prothèse dentaire et alliages ductiles utilisés à cet effet
US10653585B2 (en) 2012-03-09 2020-05-19 Ivoclar Vivadent, Inc. Palladium based alloys

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314334A (en) * 1990-12-18 1994-05-24 American Thermocraft Corporation Subsidiary Of Jeneric/Pentron Incorporated Dental procelain bond layer for titanium and titanium alloy copings
US6322728B1 (en) * 1998-07-10 2001-11-27 Jeneric/Pentron, Inc. Mass production of dental restorations by solid free-form fabrication methods
US20020004018A1 (en) * 2000-01-26 2002-01-10 Arun Prasad Dental alloys
US20020122741A1 (en) * 2001-01-03 2002-09-05 Arun Prasad Dental alloys
US20060124706A1 (en) * 2003-07-14 2006-06-15 Derek Raybould Low cost brazes for titanium
US20070113707A1 (en) * 2004-05-14 2007-05-24 Cascone Paul J Dental prosthesis method and alloys
US20080071347A1 (en) * 2006-09-15 2008-03-20 Boston Scientific Scimed, Inc. Medical devices having alloy compositions

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314334A (en) * 1990-12-18 1994-05-24 American Thermocraft Corporation Subsidiary Of Jeneric/Pentron Incorporated Dental procelain bond layer for titanium and titanium alloy copings
US6322728B1 (en) * 1998-07-10 2001-11-27 Jeneric/Pentron, Inc. Mass production of dental restorations by solid free-form fabrication methods
US20020004018A1 (en) * 2000-01-26 2002-01-10 Arun Prasad Dental alloys
US20020122741A1 (en) * 2001-01-03 2002-09-05 Arun Prasad Dental alloys
US20060124706A1 (en) * 2003-07-14 2006-06-15 Derek Raybould Low cost brazes for titanium
US20070113707A1 (en) * 2004-05-14 2007-05-24 Cascone Paul J Dental prosthesis method and alloys
US20080071347A1 (en) * 2006-09-15 2008-03-20 Boston Scientific Scimed, Inc. Medical devices having alloy compositions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
OKABE ET AL.: "The Present Status of Dental Titanium Casting.", JOURNAL OF THE MINERALS, METALS, AND MATERIALS SOCIETY, vol. 50, no. 9, 1998, pages 24 - 29, Retrieved from the Internet <URL:http://www.springerlink.com/content/2320411215040093> [retrieved on 20090504] *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013134594A1 (fr) * 2012-03-09 2013-09-12 Ivoclar Vivadent, Inc. Alliages à base de palladium
US10123858B2 (en) 2012-03-09 2018-11-13 Ivoclar Vivadent, Inc. Palladium based alloys
US10653585B2 (en) 2012-03-09 2020-05-19 Ivoclar Vivadent, Inc. Palladium based alloys
WO2013155480A1 (fr) * 2012-04-13 2013-10-17 The Argen Corporation Procédé de fabrication d'une prothèse dentaire et alliages ductiles utilisés à cet effet

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