Inventors:
Joseph M. Kacicz - York PA
Frank P. Fonvielle - York PA
Assignee:
Dentsply Research & Development Corp. - Milford DE
International Classification:
C03C 1010
C03C 822
C03C 814
C03C 802
Abstract:
Porcelain compositions, especially dental porcelain compositions, which contain leucite crystals in controlled amounts in a glassy phase matrix to permit selective adjustment of the thermal coefficient of expansion of the porcelain compositions, including methods of preparing and using same and products derived therefrom.