Castability, opaque masking, and porcelain bonding of 17 porcelain-fused-to-metal alloys

Randolph P. O'Connor; J. Rodway Mackert; Michael L. Myers; Edward E. Parry

doi:10.1016/S0022-3913(96)90027-X

Castability, opaque masking, and porcelain bonding of 17 porcelain-fused-to-metal alloys

Randolph P. O'Connor, J. Rodway Mackert, Michael L. Myers, Edward E. Parry

Restorative Sciences

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

Seventeen porcelain-fused-to-metal alloys, which representd a cross section of the various alloy types available, were evaluated for castability, opaque masking, and porcelain bond strenght. The base metal alloys generally cast more completely than the noble alloys, with presence of beryllium as an important factor for greater castability among the base metal alloys. Statistically significant differences were observed in the ability of an opaque porcelain to mask the different alloy substrates but no systematic effect of alloy type was observed. Porcelain bond testing revealed that nickel-chromium-beryllium alloys produced significantly better porcelain-metal bonds than nickel-chromium alloys without beryllium. In addition, it was found that palladium-copper alloys produced significantly better bonds with porcelain than palladium-cobalt alloys.

Original language	English (US)
Pages (from-to)	367-374
Number of pages	8
Journal	Journal of Prosthetic Dentistry
Volume	75
Issue number	4
DOIs	https://doi.org/10.1016/S0022-3913(96)90027-X
State	Published - Jan 1 1996

ASJC Scopus subject areas

Oral Surgery

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abstract = "Seventeen porcelain-fused-to-metal alloys, which representd a cross section of the various alloy types available, were evaluated for castability, opaque masking, and porcelain bond strenght. The base metal alloys generally cast more completely than the noble alloys, with presence of beryllium as an important factor for greater castability among the base metal alloys. Statistically significant differences were observed in the ability of an opaque porcelain to mask the different alloy substrates but no systematic effect of alloy type was observed. Porcelain bond testing revealed that nickel-chromium-beryllium alloys produced significantly better porcelain-metal bonds than nickel-chromium alloys without beryllium. In addition, it was found that palladium-copper alloys produced significantly better bonds with porcelain than palladium-cobalt alloys.",

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