ISSN 0004-881X

The Effect of Implant-supported All Ceramic Cantilever Bridge on Bone Remodelling

by C. Rungsiyakull^1,a, P. Rungsiyakull², Q. Li¹, W. Li¹, M.V. Swain²

1) School of Aerospace, Mechanical and Mechatronic Engineering
2) Faculty of Dentistry
The University of Sydney, Sydney, NSW 2006, Australia

Abstract

This paper aims at providing a preliminary understanding in a biomechanics effect of dental implant supported cantilever bridge on dental bone remodelling. The dental crown is made of all-ceramics. The 2D finite element model contains ceramic bridge, implant fixture, abutment and a section of bone which were constructed bases on computerised tomography (CT) images. To facilitate the study in bone remodelling in this paper, the strain energy density (SED) obtained from 2D plane stress finite element analysis (FEA) model is used as the mechanical stimulus to determine the bone turn-over in the cancellous and cortical bones. The results examined the changes in bone density and stiffness as a result of bone remodelling over a period of 48 months. The displacement of the bridge was also taken into account to explore the relationship between the stiffness of the structure and bone remodelling.

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