(19)
(11) EP 4 823 997 A1

(12)

(43) Date of publication:
21.10.2026 Bulletin 2026/43

(21) Application number: 24820728.4

(22) Date of filing: 06.12.2024
(51) International Patent Classification (IPC): 
C03C 1/00(2006.01)
C03C 3/083(2006.01)
C03C 10/00(2006.01)
 C03C 3/04(2006.01)
C03C 4/00(2006.01)
(52) Cooperative Patent Classification (CPC):
C03C 1/006; C03C 4/0021; C03C 10/00; C03C 3/062
(86) International application number:
PCT/EP2024/085001
(87) International publication number:
WO 2025/125101 (19.06.2025 Gazette 2025/25)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 15.12.2023 EP 23216983

(71) Applicant: Institut Straumann AG
4002 Basel (CH)

(72) Inventors:
  • PFÖSS, Barbara Sophie
    4002 Basel (CH)
  • CALDI, Jonathan
    4002 Basel (CH)
  • MARTI, Roger Ernst
    4002 Basel (CH)
  • ALLEMANN, Christophe
    4002 Basel (CH)

(74) Representative: Schaad, Balass, Menzl & Partner AG 
Bellerivestrasse 20 Postfach
8034 Zürich
8034 Zürich (CH)

   


(54) METHOD OF PREPARING A GLASS CERAMIC MATERIAL FOR USE IN DENTAL RESTORATIONS