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Moving Beyond Crunch-the-Crown Testing Clinical Failure



J R. Kelly


Traditional fracture tests of single unit prostheses are inappropriate, since they do not create failure mechanisms seen clinically. Validated tests are needed to elucidate the role(s) metal copings, cement systems, bonding and occlusion play in the success of fixed prostheses as well as make meaningful comparisons possible among novel metal and ceramics substructures. Research over the past six years has shown that crack systems mimicking clinical failure can be produced in all-ceramic restorations under appropriate conditions.
Journal of Prosthetic Dentistry


ceramic crowns, failure loads, failure mechanisms, finite elemental analysis, mastication


Kelly, J. (2008), Moving Beyond Crunch-the-Crown Testing Clinical Failure, Journal of Prosthetic Dentistry (Accessed June 24, 2024)


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Created October 16, 2008