Stock material or miscellaneous articles – Surface property or characteristic of web – sheet or block – Surface modified glass
Patent
1995-03-08
1998-01-06
Dudash, Diana
Stock material or miscellaneous articles
Surface property or characteristic of web, sheet or block
Surface modified glass
427 227, 427 229, 427380, 4274191, 65 3013, 65 3014, B32B 1700, C03C 1700, B05D 302, B05D 310
Patent
active
057052735
ABSTRACT:
A method for strengthening and increasing the thickness of the strengthened surface layer of a dental ceramic restorative material where the ceramic material is heat treated with a salt composition containing a lithium ion and a metal ion larger than the lithium ion first at a temperature above the strain temperature followed by a second heat treatment with the salt composition at a temperature below the strain temperature. The treatment is especially effective for all-ceramic, high-leucite feldspathic porcelain restorations.
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Denry Isabelle L.
Rosenstiel Stephen F.
Dudash Diana
Pollick Philip J.
The Ohio State University
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