WO2003035014A1 - Systeme pour produire une ceramique de recouvrement - Google Patents

Systeme pour produire une ceramique de recouvrement Download PDF

Info

Publication number
WO2003035014A1
WO2003035014A1 PCT/EP2002/011906 EP0211906W WO03035014A1 WO 2003035014 A1 WO2003035014 A1 WO 2003035014A1 EP 0211906 W EP0211906 W EP 0211906W WO 03035014 A1 WO03035014 A1 WO 03035014A1
Authority
WO
WIPO (PCT)
Prior art keywords
mol
mixture
ceramic
oxide
veneering
Prior art date
Application number
PCT/EP2002/011906
Other languages
German (de)
English (en)
Inventor
Norbert Thiel
Markus Vollmann
Marc Stephan
Original Assignee
Vita Zahnfabrik H. Rauter Gmbh & Co. Kg
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 Vita Zahnfabrik H. Rauter Gmbh & Co. Kg filed Critical Vita Zahnfabrik H. Rauter Gmbh & Co. Kg
Priority to EP02785298A priority Critical patent/EP1438000A1/fr
Priority to JP2003537582A priority patent/JP2005510493A/ja
Publication of WO2003035014A1 publication Critical patent/WO2003035014A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
    • A61K6/807—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising magnesium oxide
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/20—Protective coatings for natural or artificial teeth, e.g. sealings, dye coatings or varnish
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
    • A61K6/818—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
    • A61K6/822—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising rare earth metal oxides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
    • A61K6/824—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising transition metal oxides

Definitions

  • the present invention relates to a system for producing a veneering ceramic using three mixtures.
  • Partially stabilized zirconium oxide (TZP: Tetragonal Zirconia Polycrystals) for medical and dental applications is state of the art.
  • Hip joint balls are made from yttrium-stabilized zirconium oxide (Y-TZP) (St. Gobain - Desmarquest) and dental frameworks from Y-TZP from DCS, Degussa.
  • Y-TZP yttrium-stabilized zirconium oxide
  • DCS Degussa.
  • These ceramics of the TZP type consist of the tetragonal phase of the ZrO 2 - Y 2 O 3 system (R ⁇ mpp-Lexikon Chemie, 10th edition).
  • these zirconium oxide frameworks will be veneered with a ceramic material at temperatures from 650 ° C to 1000 ° C. This leads to defects in the veneering ceramics directly after veneering or only after a few hours or days (so-called late jumps).
  • the invention is based on the technical problem of preventing these late cracks in the veneering ceramic and thus drastically increasing the service life of the all-ceramic overall system consisting of the all-ceramic framework and the suitable veneering ceramic.
  • a system for producing an all-ceramic dental prosthesis based on a core material made of TZP (Tetragonal Zirconia Polycrystals) as a starting material comprising an intermediate layer obtainable from a mixture A, a mixture B for a veneering ceramic
  • the dentures produced are regularly infiltrated, which is necessary in order to give the dentures the necessary strength.
  • CeO 2 used in particular, in which this mixture is applied to the porous sintered core material.
  • the infiltration glasses contain, as is known to the person skilled in the art, lanthanum oxides.
  • the infiltration technique is used in the manufacture of dentures in accordance with the Inceram method from VITA Zahnfabrik GmbH, which is known to the experts.
  • the porous sintered oxide ceramic core materials made of TZP preferably have a porosity of 1-40 vol%.
  • the porosity is determined in a simple manner by means of a density determination known per se to the person skilled in the art. The procedure for determining the density is explained in more detail in Example 3.
  • the system according to the invention has either cerium or yttrium oxide as an essential component. Additional zircon-stabilizing oxides can be added. These are in particular magnesium oxide, calcium oxide and / or lanthanum oxide.
  • the invention also relates to the use of mixtures A, B and / or C according to the invention.
  • the system according to the invention therefore provides options for using densely sintered or porous sintered TZP core materials for a denture.
  • mixture B can be used to apply the veneer directly to the core material and, after firing, a corresponding denture can be obtained.
  • an intermediate layer which consists of the mixture A according to the system according to the invention, is preferably applied between the core material and the facing.
  • the invention therefore also relates to an all-ceramic dental prosthesis based on a dense or porous sintered core material made of TZP as the starting material, optionally an intermediate layer A obtainable by applying mixture A according to the system of the invention, a veneering ceramic B obtainable by applying the mixture B according to the system of the present invention and an all-ceramic dental prosthesis based on a porous sintered core material based on TZP, which is solidified by infiltration by applying mixture C according to the invention to infiltrate the porous sintered material.
  • Example 1 Veneering of a dense zirconium oxide framework (e.g. anterior tooth cap) with a suitable veneering ceramic.
  • a so-called bonder is applied to the thermally pretreated zirconium oxide framework (Y-TZP), consisting of the veneering material with an additional 3 mol% Y 2 O 3 content.
  • Y-TZP thermally pretreated zirconium oxide framework
  • the layering over the veneer is completed with the veneer and the usual layer structure (opaque dentin, dentin; enamel).
  • the composition of the bonder is as follows:
  • the veneering material can also directly contain proportions of Y 2 O 3 (e.g. 3 mol%)
  • Example 2 A zirconium dioxide / aluminum oxide mixture with a composition of approx. 30% by weight of ZrO 2 and 70% by weight of Al 2 O 3 with an average grain size of 3 ⁇ m is produced.
  • the zirconium dioxide used is stabilized with a proportion between 15 and 16% by weight of cerium dioxide.
  • the mixture is shaped and sintered at a temperature of 1180 ° C.
  • the resulting porous sintering structure is infiltrated at 1140 ° C with a lanthanum glass according to the "Inceram technique".
  • a glass of the following composition is used:
  • the resulting work has a fracture toughness (SEVNB method) of 4.5 MPa m and a breaking strength of 600 MPa.
  • Temperature change resistance tests show a drastically improved survival rate for veneered anterior caps and three-unit bridges compared to veneered crowns and bridges that were infiltrated with an infiltration glass as stated above, but without the addition of 4% by weight Y 2 O 3
  • thermal shock resistance tests of veneered crowns and bridges that were glass-filtered with a 40 ° C higher infiltration temperature (1180 ° C) also showed a significant increase in survival compared to materials infiltrated with conventional infiltration glasses. This leads to a significant improvement in the process robustness of the production of the all-ceramic system, since the dental furnaces used in the market frequently exceed the desired peak temperature when leveling off to this peak temperature in the required rapid firing programs.
  • Example 3 The porosity of a porous sintered core material according to Example 2 is determined using the following method:
  • Test pieces of simple geometry e.g. cubes or cuboids
  • the surfaces are ground flat. Length, width and height are measured with a caliper and the volume of the body is calculated from this.
  • the mass of the dry test specimens is then determined.
  • the density porous results from the quotient mass / volume of the respective test specimen. Usually, averaging over 10 measured values is then carried out.
  • the porosity of the sintered core material in percent then results from the equation

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dental Preparations (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Dental Prosthetics (AREA)

Abstract

L'invention concerne un système permettant de produire une prothèse dentaire entièrement céramique à base d'un matériau noyau constitué de TZP (polycristaux de zircone tétragonale) comme matériau de départ, d'une couche intermédiaire pouvant être obtenue à partir d'un mélange A, ainsi que d'un mélange B pour une céramique de recouvrement, comprenant : (a) un mélange A contenant, outre des aluminosilicates, 0,5 - 8 % en moles, en particulier 2 - 5 % en moles d'oxyde d'yttrium, de préférence Y2O3, et/ou 8 - 16 % en moles, en particulier 10 - 14 % en moles d'oxyde cérique, en particulier CeO2 ; et/ou (b) un mélange B contenant une céramique de recouvrement pour recouvrir des sous-structures entièrement céramiques en TZP, le mélange contenant 0,5 - 8 % en moles, en particulier 2 - 5 % en moles d'oxyde d'yttrium, en particulier Y2O3, et/ou 8 - 16 % en moles, de préférence 10 - 14 % en moles d'oxyde cérique, en particulier CeO2.
PCT/EP2002/011906 2001-10-25 2002-10-24 Systeme pour produire une ceramique de recouvrement WO2003035014A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02785298A EP1438000A1 (fr) 2001-10-25 2002-10-24 Systeme pour produire une ceramique de recouvrement
JP2003537582A JP2005510493A (ja) 2001-10-25 2002-10-24 セラミック表面仕上げ材料の製造システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10152044 2001-10-25
DE10152044.1 2001-10-25

Publications (1)

Publication Number Publication Date
WO2003035014A1 true WO2003035014A1 (fr) 2003-05-01

Family

ID=7703283

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/011906 WO2003035014A1 (fr) 2001-10-25 2002-10-24 Systeme pour produire une ceramique de recouvrement

Country Status (3)

Country Link
EP (1) EP1438000A1 (fr)
JP (1) JP2005510493A (fr)
WO (1) WO2003035014A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008012467A2 (fr) * 2006-07-25 2008-01-31 Michael Sadoun Verre a base d'oxydes metalliques pour la fabrication de protheses dentaires ceramiques
WO2008106958A2 (fr) * 2007-03-06 2008-09-12 Hermsdorfer Institut Für Technische Keramik E.V. Céramique pour incrustations vestibulaires pour des restaurations dentaires en dioxyde de zirconium stabilisé à l'yttrium et procédé de fixation d'incrustations vestibulaires sur des restaurations dentaires en dioxyde de zirconium stabilisé à l'yttrium
US8940651B2 (en) 2005-02-08 2015-01-27 Ivoclar Vivadent Ag Lithium silicate materials
EP2443077B1 (fr) 2009-06-19 2017-08-23 Nobel Biocare Services AG Revêtement d'application dentaire

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240643A1 (fr) * 1986-04-11 1987-10-14 Tyszblat Sadoun, Michèle Procédé de fabrication de prothèses dentaires
DE4020893A1 (de) * 1989-06-30 1991-01-03 Hoya Corp Verfahren zur herstellung eines anorganischen, biologisch vertraeglichen materials
EP0544145A1 (fr) * 1991-11-27 1993-06-02 Degussa Aktiengesellschaft Matériau céramique dentaire ayant une température de mise en forme peu élevée
EP0580565A2 (fr) * 1992-06-23 1994-01-26 Sandvik Aktiebolag Procédé de fabrication d'éléments de reconstitution d'une dent en céramique
US5556816A (en) * 1994-03-15 1996-09-17 Kim; Dae-Joon Methods for preparation of tetragonal zirconia polycrystal composites
US5975905A (en) * 1996-08-31 1999-11-02 Korea Inst Sci & Tech Ceramic slurry composition for ceramic core of a dental prosthesis
WO2002047616A2 (fr) * 2000-12-11 2002-06-20 Vita Zahnfabrik H. Rauter Gmbh & Co. Kg Prothese dentaire entierement ceramique comportant une structure en oxyde de zircon a stabilisation cerique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240643A1 (fr) * 1986-04-11 1987-10-14 Tyszblat Sadoun, Michèle Procédé de fabrication de prothèses dentaires
DE4020893A1 (de) * 1989-06-30 1991-01-03 Hoya Corp Verfahren zur herstellung eines anorganischen, biologisch vertraeglichen materials
EP0544145A1 (fr) * 1991-11-27 1993-06-02 Degussa Aktiengesellschaft Matériau céramique dentaire ayant une température de mise en forme peu élevée
EP0580565A2 (fr) * 1992-06-23 1994-01-26 Sandvik Aktiebolag Procédé de fabrication d'éléments de reconstitution d'une dent en céramique
US5556816A (en) * 1994-03-15 1996-09-17 Kim; Dae-Joon Methods for preparation of tetragonal zirconia polycrystal composites
US5975905A (en) * 1996-08-31 1999-11-02 Korea Inst Sci & Tech Ceramic slurry composition for ceramic core of a dental prosthesis
WO2002047616A2 (fr) * 2000-12-11 2002-06-20 Vita Zahnfabrik H. Rauter Gmbh & Co. Kg Prothese dentaire entierement ceramique comportant une structure en oxyde de zircon a stabilisation cerique

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9434639B2 (en) 2005-02-08 2016-09-06 Ivoclar Vivadent Ag Lithium silicate materials
US8940651B2 (en) 2005-02-08 2015-01-27 Ivoclar Vivadent Ag Lithium silicate materials
US10981823B2 (en) 2005-02-08 2021-04-20 Ivoclar Vivadent Ag Lithium silicate materials
US10214443B2 (en) 2005-02-08 2019-02-26 Ivoclar Vivadent Ag Lithium silicate materials
WO2008012467A3 (fr) * 2006-07-25 2008-04-03 Michael Sadoun Verre a base d'oxydes metalliques pour la fabrication de protheses dentaires ceramiques
WO2008012467A2 (fr) * 2006-07-25 2008-01-31 Michael Sadoun Verre a base d'oxydes metalliques pour la fabrication de protheses dentaires ceramiques
FR2904306A1 (fr) * 2006-07-25 2008-02-01 Michael Sadoun Verre a base d'oxydes metalliques pour la fabrication de protheses dentaires ceramiques
WO2008106958A3 (fr) * 2007-03-06 2009-11-05 Hermsdorfer Institut Für Technische Keramik E.V. Céramique pour incrustations vestibulaires pour des restaurations dentaires en dioxyde de zirconium stabilisé à l'yttrium et procédé de fixation d'incrustations vestibulaires sur des restaurations dentaires en dioxyde de zirconium stabilisé à l'yttrium
US8592330B2 (en) 2007-03-06 2013-11-26 Ivoclar Vivadent Ag Veneer ceramic for dental restorations and method for veneering dental restorations
US9359245B2 (en) 2007-03-06 2016-06-07 Ivoclar Vivadent Ag Veneer ceramic for dental restorations and method for veneering dental restorations
US8987153B2 (en) 2007-03-06 2015-03-24 Ivoclar Vivadent Ag Veneer ceramic for dental restorations and method for veneering dental restorations
WO2008106958A2 (fr) * 2007-03-06 2008-09-12 Hermsdorfer Institut Für Technische Keramik E.V. Céramique pour incrustations vestibulaires pour des restaurations dentaires en dioxyde de zirconium stabilisé à l'yttrium et procédé de fixation d'incrustations vestibulaires sur des restaurations dentaires en dioxyde de zirconium stabilisé à l'yttrium
EP2443077B1 (fr) 2009-06-19 2017-08-23 Nobel Biocare Services AG Revêtement d'application dentaire
EP2443077B2 (fr) † 2009-06-19 2021-01-27 Nobel Biocare Services AG Revêtement d'application dentaire

Also Published As

Publication number Publication date
EP1438000A1 (fr) 2004-07-21
JP2005510493A (ja) 2005-04-21

Similar Documents

Publication Publication Date Title
EP2885259B1 (fr) Matériau composite à base d'oxyde de zirconium
JP6374808B2 (ja) ＺｒＯ２成分を含有するケイ酸リチウムガラスセラミックおよびガラス
DE60303964T2 (de) Verstärkte keramikrestauration
EP1584607B1 (fr) Vitrocéramique d'apatite à base d'oxyapatites silicieux
EP2956427B1 (fr) Matériaux polyphases à base d'oxyde de zirconium
EP2287122B1 (fr) Vitrocéramique de phosphosilicate
EP1568667A2 (fr) Compositions de vitrocéramiques dentaires compressibles et renforcées
WO2015155038A1 (fr) Vitrocéramiques à phase homogène solide de quartz
DE10061630B4 (de) Vollkeramischer Zahnersatz mit einem Gerüst aus einem Cerstabillisierten Zirkonoxid
WO2003035014A1 (fr) Systeme pour produire une ceramique de recouvrement
EP1905412B1 (fr) Verre pour utilisation dentaire
DD245360B1 (de) Dentalmaterial fuer kuenstlichen zahnersatz und verfahren zur seiner herstellung

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2003537582

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 2002785298

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2002785298

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWW Wipo information: withdrawn in national office

Ref document number: 2002785298

Country of ref document: EP