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Residual Stress in Two Dental Alloys During Porcelain Application

Published online by Cambridge University Press:  06 March 2019

M. Bagby ,
SJ Marshall  and
GW Marshall Jr
M. Bagby
Affiliation:
University of Nebraska Medical Center, College of Dentistry Lincoln, NE
SJ Marshall
Affiliation:
University of California, San Francisco School of Dentistry, San Francisco, CA
GW Marshall Jr
Affiliation:
University of California, San Francisco School of Dentistry, San Francisco, CA
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Extract

Residual stresses in dental castings are widely held to be the cause of distortion and change of fit in ceramic bonded to metal dental restorations. Residual stresses are thought to result from the casting process and from ceramic/metal mismatch of thermal expansion coefficients. Such stresses have not been confirmed experimentally. The purpose of this study was to measure residual stress with x-ray diffraction at the various porcelain application steps for two noble dental alloys with two dental opaque porcelains.

Type
III. X-Ray Stress/Strain Determination, Fractography, Diffraction, Line Broadening Analysis
Information
Advances in X-Ray Analysis , Volume 31: Thirty-Sixth Annual Conference on Applications of X-ray Analysis, August 3-7, 1987 , 1987 , pp. 255 - 260
Copyright
Copyright © International Centre for Diffraction Data 1987

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References

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