Method for making ceramic artificial dental bridges
AssigneeSandvik AB
InventorsJonas Salomonson, Agneta Odén
Life of this patent
Estimating the term…
Abstract
A method for making artificial tooth bridges having a ceramic densely sintered high strength individual core veneered with porcelain using powder metallurgical methods, wherein the individual bridge parts are joined together as a bridge core with glass, which in molten condition wets the ceramic core material. The glass therefore finds its way into the gap between the bridge parts and reacts with the ceramics so that during cooling it forms a strong joint between the individual densely sintered ceramic bridge parts.
Claims8
A method of making artificial dental bridges comprising the steps of:
- providing individual ceramic bridge parts having compatible joining portions shaped to obtain a mechanical locking with each other;
- and
- sealing the individual ceramic bridge parts in their mechanical locking positions with glass placed along their joining portions to form a bridge core, wherein the glass in melted condition wets the ceramic core material and therefore spreads into a gap between the bridge parts and reacts with the ceramic such that the glass during cooling forms a strong joint between the individual ceramic bridge parts thereby reinforcing the mechanical locking of the individual ceramic bridge parts.
A method of making artificial dental bridges having a ceramic densely sintered high strength individual core veneered with porcelain by powder metallurgical methods comprising the steps of:
- providing individual densely sintered ceramic bridge parts having compatible joining portions shaped to obtain a mechanical locking with each other;
- and
- sealing the individual densely sintered ceramic bridge parts in their mechanical locking positions with glass placed along their joining portions to form a bridge core, wherein the glass in melted condition wets the ceramic core material and therefore spreads into a gap between the bridge parts and reacts with the ceramic such that the glass during cooling forms a strong joint between the individual densely sintered ceramic bridge parts thereby reinforcing the mechanical locking of the individual densely sintered ceramic bridge parts.
Dependencies are inferred from the claim text.