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Residual Stress in Two Dental Alloys During Porcelain Application

Published online by Cambridge University Press:  06 March 2019

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
Copyright
Copyright © International Centre for Diffraction Data 1987

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References

1 Ricklefs, R. in Residual stress measurement by x-ray diffraction.ME, Hilley, JA, Larson, CF, Jatczak, eds. -SAE J784a 2nd ed. New York: Society of Automotive Engineers, 1971:26.Google Scholar
2 Cohen, J.B, H., Dolle, James MR. Stresses from x-ray powder diffraction patterns. In: Proceedings of the symposium on accuracy in powder diffraction,1980. Gaithersburg MD:NBS Special Publication 567:453-477.Google Scholar
3 James, MR, JB, Cohen. Study of the precision of x-ray stress analysis. Adv X-ray Anal 1977: 20:291308.Google Scholar
4 Noyan, IC. Effect of gradients in multi'axial stress states on residual stress measurements with x-rays. Met Trans A 1983: 14A:249-258.Google Scholar
5 Abstat statistical program, 4.09. Anderson-Bell Co, Cannon City, CO.Google Scholar
6 Cicchetti, DV. Extension of multiple-range tests to interaction tables in the analysis of variance: a rapid approximate solution. Psych Bull 1972: 77:405408.Google Scholar
7 Timoshenko, S. Analysis of bimetal thermostats. J Opt Soc Am 1925: 11:233.Google Scholar
8 Lautenschlager, EP, EH, Greener, WE, EIkington. Microprobe analysis of gold-porcelain bonding. J Dent Res 1969: 48:1206-10.Google Scholar
9 Dolle, H. Influence of multiaxial stress states, stress gradients and elastic anisotropy on the evaluation of (residual) stress with x-rays. J Appl Cryst 1979: 12:489501.Google Scholar
10 Kelly, CJ, MA, Short. in Residual stress measurement by x-ray diffraction. ME, Hilley, JA, Larson, CF, Jatczak, RE, Ricklefs, eds. -SAE J784a 2nd ed. New York: Society of Automotive Engineers, 1971:60,Google Scholar