Numerical simulation of crack formation in all ceramic dental bridge

Li, Qing, Ichim, Ionut, Loughran, Jeff, Li, Wei, Swain, Michael, and Kieser, Jules (2006) Numerical simulation of crack formation in all ceramic dental bridge. Key Engineering Materials, 312. pp. 293-298.

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Abstract

Ceramics have rapidly emerged as one of the major dental biomaterials in prosthodontics due to exceptional aesthetics and outstanding biocompatibility. However, a challenging aspect remaining is its higher failure rate due to brittleness, which has to a certain extent prevented the ceramics from fully replacing metals in such major dental restorations as multi-unit bridges. This paper aims at simulating the crack initiation and propagation in dental bridge. Unlike the existing studies with prescriptions of initial cracks, the numerical model presented herein will predict the progressive damage in the bridge structure which precedes crack initiation. This will then be followed by automatic crack insertion and subsequent crack growth within a continuum to discrete framework. It is found that the numerical simulation correlates well to the clinical and laboratory observations.

Item ID: 4217
Item Type: Article (Refereed Research - C1)
Keywords: conductive field; finite element; heat transfer; sensitivity analysis; topology optimization; dental bridge; nonlinear finite element method; discrete element method; fracture mechanics; crack growth; ceramics
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ISSN: 1013-9826
Date Deposited: 21 Sep 2009 04:46
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1105 Dentistry > 110501 Dental Materials and Equipment @ 20%
SEO Codes: 92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920402 Dental Health @ 70%
89 INFORMATION AND COMMUNICATION SERVICES > 8902 Computer Software and Services > 890299 Computer Software and Services not elsewhere classified @ 30%
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