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Study on Shear Bond Strength of Ni-Cr Alloy for Porcelain Fused to Metal Crown at the Temperature of Degassing
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 Title & Authors
Study on Shear Bond Strength of Ni-Cr Alloy for Porcelain Fused to Metal Crown at the Temperature of Degassing
Joo, Kyu-Ji; Shin, Jae-Woo; Cho, Hong-Kyu;
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Purpose: This study was to evaluate the shear bond strength of ceramic fused to Ni-Cr alloy(Alophaloy) by heat treatment. Methods: The specimens were divided into 5 groups according to heat treatment conditions prior to porcelain application. Eighteen specimens from each group were subjected to the shear load a universal testing machine using a 0.1mm/min cross-head speed and two specimens from each group were observed with SEM and EDX line profile. Results: The observation of the oxide film on the metal surface by SEM photograph showed a coarsening with an increasing degassing hold time. The diffusion of metal oxide was observed farther from the opaque layer in the heat treated specimen than no heat treated specimen. The shear bond strength measured highest to A5(55.23MPa) in the 10min holding group and measured lowest from A1(24.38MPa) in the no heat treated group, and there was a significant difference(p<0.05). Conclusion: The shear bond strength of Ni-Cr alloy improved in the heat treatment compared to the no heat treatment specimen.
Ni-Cr Alloy;Shear Bond Strength;Metal-ceramic Bonding;
 Cited by
Anusavice KJ, DeHoff PH, Fairhurst CW. Comparative evaluation of ceramic-metal bond tests using finite element stress analysis. J Dent Res, 59(3), 603-613, 1980.

Baran GR. Auger chemical analysis of oxides on Ni-Cr alloys. J Dent Res, 63(1), 76-80, 1984. crossref(new window)

Baran GR. Oxide componds on Ni-Cr alloys. J Dent Res, 63(11), 1332-1334, 1984. crossref(new window)

Baran GR. The metallurgy of Ni-Cr alloys for fixed prosthodontics. J Prosthet Dent, 50(5), 639-650, 1983. crossref(new window)

Birks N, Meier GM. Introduction to high temperature of metals. Edward Arnold Ltd, 107-110, 1983.

Bruggers K, Corcoran C, Jeansonne EE, and Sarkar NK. Role of manganese in alloyporcelain bonding. J Prosthet Dent, 55(4), 453-456, 1986. crossref(new window)

Carter JM, Al-Mudafar J, Sorensen SE. Adherence of a nickel-chromium alloy and porcelain. J Prosthet Dent, 41(2), 167-172, 1979. crossref(new window)

Dent RJ, Preston JD, Moffa JP, Caputo A. Effect of oxidation on ceramometal bond strength. J Prosthet Dent, 47(1), 59-62, 1982. crossref(new window)

DeHoff PH, Anusavice KJ, Hathcock PW. An evaluation of the four point flexural test for metal-ceramic bond strength. J Dent Res, 61(9), 1066-1069, 1982. crossref(new window)

Hinman, RW, Widera, GEO, Holmes, AD, and Cassel, JM. Effects of porcelain/alloy interfacial diffusion zones on thermo-mechanical strain. J Dent Res, 62(5), 585-589, 1983. crossref(new window)

Kim CY, Kim YG, Cho HS. The effect of preheat treatment on ceramic to metal bond strength. J Kor Aca Den Tech, 24(1), 33-41, 2002.

Kim YH, Lee SH, Yang JH, Jung HY. Metal surface change by heat treatment of Ni-Cr alloys. J Korean Acad Prosthodont, 27(2), 219-248, 1989.

Kim CY, Nam SY. The effect of oxidation heat treatment on porcelain to metal bond strength. J Kor Aca Den Tech, 19(1), 37-42, 1997.

Lee KH, Cho YB, Chung CH, Kin HJ. Bond-strength of several metal-ceramic alloys and meneered-porcelain. J Korean Acad Prosthodont, 49(3), 191-196, 2011. crossref(new window)

McLean JW. The metal ceramic restoration. Dent Clin North Am 27(1), 747-761, 1983.

Malhorta ML, Maickel LB. Shear bond strength in porcelain-metal restorations. J Prosthet Dent, 43(4), 397-400, 1980. crossref(new window)

Shell JS, Nielsen JP. Study of the bond between gold alloys and porcelain. J Dent Res, 41(1), 4124-4137, 1962.

Vickery RC, Badinell LA. Nature of attachment forces in porcelain-gold systems. J Dent Res, 47(5), 683-688, 1968. crossref(new window)

Wagner WC, Asger K, Bigelow WC, Flinn RA. Effect of interfacial variables on metal-porcelain bonding. J Boimed Mater Res, 27(4), 531-537, 1993. crossref(new window)