Patent · US Expired

Process for preparing a ceramic material for use in dental fillings and dental crowns

US5776233A · kind A · utility

20Cited by

5References

20Claims

0Family size

Assignee

BEGO BREMER GOLDSCHLÄGEREI WILH. HERBST GMBH & CO. KG · DE

Inventors

Wolfgang Wiedemann · Geisenheim, DE
Hans Georg Klinger · Schallstadt, DE

Key dates

Filing date	May 13, 1994
Grant date	Jul 7, 1998
Priority date	—
Expiry date	May 13, 2014

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B35/626
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A bioactive ceramic material for dental fillings and crowns on the basis of calcium phosphate compounds contains crystallites of sparingly water-soluble calcium phosphate compounds in an amorphous, vitreous or polycrystalline matrix of readily water-soluble calcium phosphate compounds, the Ca/P-atomic ratio of the calcium phosphate compounds being altogether <1.65.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.