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KMID : 1004520110270010051
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Journal of Dental Rehabilitation and Applied Science
2011 Volume.27 No. 1 p.51 ~ p.61
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Three-Dimensional Finite Element Analysis for Comparision between Titanium Implant Abutment and Zirconia Implant Abutment
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Yun Mi-Jung
Kim Chang-Seop
Jeon Yun-Kyung
Seo Seung-U
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Abstract
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Recently, restoring implants in the esthetically demanding region, zirconia-based materials are widely used due to their superior mechanical properties, accuracies, and esthetics. The purpose of this study was to investigate the load transfer and mechanical stability of zirconia and titanium implant abutments by using the three-dimensional finite element analysis model. The internal conical joint type and external butt joint type implant system was selected as an experimental model. Finite element models of bone/implant/prosthesis complex were constructed. An load of 250N was applied vertically eside 3mm of implant axis. Stress distribution of zirconia and titanium implant abutment is similar. The maximum equivalent stress of titanium implant abutment is lower than zirconia implant abutment about 15%. Howevere considering a high mechanical strength that exceed those of titanium implant abutment, zirconia implant abutment had similar mechanical stability of titanium implant abutment clinically.
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KEYWORD
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implant abutment, three-dimensional finite element analysis, titanium, zirconia
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