Powdered dental material and process for the preparation thereof

Details Powdered dental material and process for the preparation thereof Powdered dental material and process for the preparation thereof

1983-12-21

1985-07-09

Hayes, Lorenzo B.

Dentistry

Method or material for testing, treating, restoring, or...

By filling, bonding or cementing

106 35, 26099811, 433 9, 433226, 523115, 523116, 523117, 523118, A61K 608

Patent

active

045279799

ABSTRACT:
Powdered dental material of a sintered mixture of calcium aluminum fluorosilicate glass and precious metals (or alloys thereof with each other or with up to 40% non-precious metals), which may optionally contain polycarboxylic acid and/or a chelating agent and/or further powdered precious metal. The dental material can be prepared by sintering a mixture of the glass and the precious metal at a temperature greater than 600.degree. C., grinding the sintered product to a powder and admixing the optional further components. Use of the self-hardening glass ionomer cements for dental filling purposes gives fillings having excellent resistance to wear, most notably at the edges and corners in the molar region.

REFERENCES:
patent: 3814717 (1974-06-01), Wilson
patent: 4209434 (1980-06-01), Wilson et al.
patent: 4376835 (1983-03-01), Schmitt et al.

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