Fibre reinforced composite dental bridge. Part II: numerical investigation

Li, W., Swain, M.V., Li, Q., Ironside, J., and Steven, G.P. (2004) Fibre reinforced composite dental bridge. Part II: numerical investigation. Biomaterials, 25 (20). pp. 4995-5001.

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Motivated by the clinical success and limitations on experimental investigation of the fibre-reinforced composite dental bridge, this paper aims at providing a numerical investigation into the bridge structure. The finite element (FE) model adopted here is constructed from computer tomography images of a physical bridge specimen. The stress and strain distributions in the bridge structure especially in the bonding interfaces are analyzed in detail. The peak stresses and their variations with the different bridge designs are evaluated. Due to the lower bond strengths of adhesives and the high stress concentration in the pontic–abutment interface, the likelihood of failure in the interface is predicted by finite element analysis. The validity of the numerical results is established by a good agreement between the FE prediction and the tests in the load–deflection responses, the structural stiffness as well as the failure location of the composite dental bridge.

Item ID: 13856
Item Type: Article (Research - C1)
ISSN: 1878-5905
Keywords: dental biomaterials; failure analysis; finite element; unilateral contact
Date Deposited: 18 Nov 2010 04:42
FoR Codes: 09 ENGINEERING > 0903 Biomedical Engineering > 090302 Biomechanical Engineering @ 50%
09 ENGINEERING > 0903 Biomedical Engineering > 090301 Biomaterials @ 30%
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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