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EP0630639A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Dental ceramic restoration having a multilayered structure

Assignee: Vita Zahnfabrik H Rauter GmbH and Co KG
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Filing: 1994-06-12
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Granted: —
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Expires: 2014-06-12
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Abstract

Abstract Dental ceramic restoration having a multilayer structure on a core, obtainable by applying an opaque layer of the composition 50 to 60% by weight of SiO2, 4 to 10% by weight of Na2O, 0 to 2.5% by weight of CaO, 8 to 14% by weight of K2O, 10 to 20% by weight of Al2O3, 0 to 6% by weight of B2O3, 5 to 12% by weight of TiO2 and pigments, preferably oxide-based, onto a core, followed by firing of this arrangement, then application of a dentine/enamel layer of the composition 50 to 60% by weight of SiO2, 4 to 10% by weight of Na2O, 0 to 2.5% by weight of CaO, 8 to 14% by weight of K2O, 10 to 20% by weight of Al2O3, 2 to 10% by weight of B2O3, in particular 4 to 8% by weight of B2O3, and pigments, preferably oxide-based, followed by firing of the arrangement.

Inventors

  • 👤 Norbert Dr. Thiel
  • 👤 Susanne Weber

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 02:37
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/16; A; A61; A61K; A61K6/00; A61K6/15; A61K6/16; A61K6/20; A61K6/70; A61K6/78; A61K6/80; A61K6/802; A61K6/816; A61K6/84

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

FR2313912A1 Cited
EP0152337A2 Cited
EP0159205A1 Cited
EP0212069A2 Cited
EP0332887A2 Cited
EP0518454A2 Cited

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