Effect of recasting on the oxidation layer of a palladium-silver porcelain alloy

Journal Article · Fri Apr 01 04:00:00 EST 1988 · J. Prosthet. Dent.; (United States)

DOI:https://doi.org/10.1016/0022-3913(88)90035-2· OSTI ID:7076872

Hong, J M; Razzoog, M E; Lang, B R

The oxidation zone of a commercial palladium-silver porcelain alloy was compared after repeated casting with and without the addition of new alloy. The intensity of palladium, silver, tin, indium, and O K-alpha near the oxidation zone was analyzed with XMA. The intensity curves of tin, silver, and oxygen increased progressively through each generation despite the addition of new alloy. The thickness of the oxidation zone and the microporosities at the internal oxidation zone increased through each generation without the addition of new alloy. Although the findings indicated that the oxidation zone was favorably formed by adding new alloy, 50% by weight, for four generations, the silver and metallic oxides of the oxidation zone increased through each generation. The reuse of the palladium-silver porcelain alloy remains questionable.

• Research Organization: Kaohsiung Medical College, Taiwan (Republic of China)
• OSTI ID: 7076872
• Journal Information: J. Prosthet. Dent.; (United States), Journal Name: J. Prosthet. Dent.; (United States) Vol. 59:4; ISSN JPDEA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
550600 -- Medicine
62 RADIOLOGY AND NUCLEAR MEDICINE
ALLOYS
CASTING
CHALCOGENIDES
CHEMICAL REACTIONS
DENTISTRY
ELEMENTS
FABRICATION
INDIUM
MEDICINE
METALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PALLADIUM ALLOYS
PLATINUM METAL ALLOYS
PORCELAIN
SILVER ALLOYS
SURFACE PROPERTIES
TIN