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Metal-ceramic bond strength.

M Persson·M Bergman
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Abstract

No currently available bond test for dental metal ceramic systems has yet gained general acceptance. Such a bond test cannot be established without careful analysis of the stress distribution within the adherence region. The objective of the present study was to establish a mechanical shear stress test and combine the results with a finite element stress analysis of an idealized crown to enable comparisons of different metal-ceramic systems. The titanium-ceramic systems tested, both machined and cast titanium, showed higher shear strength values than the high gold-ceramic system used as a reference. Since the latter system has been used successfully in the clinic for many years, it seems reasonable to assume that the bond strength of titanium-ceramic systems is quite satisfactory for dental crown-and-bridge work. In conclusion, the interfacial bond strength test proposed in the present study should be applicable to all of the currently known material combinations in which a brittle fracture might be expected to occur.

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CeramicsCrownsDental AlloysDental BondingDental Casting InvestmentDental Restoration FailureDenture, PartialGold AlloysMaterials TestingMetal Ceramic AlloysModels, TheoreticalStress, MechanicalTensile StrengthTitaniumComparative StudyJournal Article

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M Persson, M Bergman. 1996. Metal-ceramic bond strength.. https://doi.org/10.3109/00016359609003517

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