1.
Anesth Analg
; 72(4): 563-4, 1991 Apr.
Article
in English
| MEDLINE
| ID: mdl-2006753
2.
J Prosthet Dent
; 62(3): 348-52, 1989 Sep.
Article
in English
| MEDLINE
| ID: mdl-2681705
ABSTRACT
Differential thermal analysis, optical microscopy, scanning electron microscopy, and energy dispersive radiographic analysis were used to examine and analyze two failed platinum-palladium-gold pin-retained nickel-chromium castings. The microstructure and chemical composition of the pin-casting interface were different from those of the pin and the cast alloy. Porosity was also observed at the interface. The observations with these samples suggest that the pin melted during casting. The embrittlement and failure of plantium-palladium-gold pins cast with nickel-chromium alloy have been attributed to this melting phenomenon. Further study is necessary to determine whether these observations are valid for a large number of samples.
Subject(s)
Chromium Alloys , Crowns , Gold Alloys , Palladium , Post and Core Technique , Chemical Phenomena , Chemistry, Physical , Differential Thermal Analysis , Electron Probe Microanalysis , Equipment Failure , Gold Alloys/analysis , Microscopy , Microscopy, Electron, Scanning , Palladium/analysis , Platinum/analysis
3.
N J Med
; 84(8): 573-6, 1987 Aug.
Article
in English
| MEDLINE
| ID: mdl-3477713