PMID: 9429133Jan 16, 1998Paper

Homogenized stress analysis in a dental implant system

Journal of Medical Engineering & Technology
H J MoonC S Koh

Abstract

In this study, the stress state occurring at each trabecular due to three different types of dental implant is investigated by a homogenization technique, in which the trabecular structure is assumed to be composed of repeating hexagonal units. This technique helps make a proper material model of bone and to analyse such a non-homogeneous structure at the level of an individual microstructural unit. Stress analyses with the homogenization technique show a much higher stress level in the sponge bone, compared to those with conventional FEM. It also shows that even a minor lateral force results in crucial stresses in the dental implant system. The stress states of the mandible with a hemisphere-rooted implant and a wedge type implant show similar levels, while those with a rectangular-rooted implant result in higher stresses. It is suggested that the distance between the implant tip and cortical bone be kept far enough apart to prevent stress concentrations in the mandible.

References

Aug 1, 1978·The Journal of Prosthetic Dentistry·N TakahashiT Komori
Jan 1, 1977·Journal of Biomechanics·A C Knoell
Jul 1, 1975·Journal of Biomedical Materials Research·E PrivitzerJ A Tesk
Apr 1, 1990·The Journal of Prosthetic Dentistry·M R RiegerG L Kinzel
Jun 1, 1990·The Journal of Prosthetic Dentistry·M R RiegerM O Brose
Feb 1, 1989·The Journal of Prosthetic Dentistry·M R RiegerR A Tanquist
Oct 1, 1989·The Journal of Prosthetic Dentistry·M R RiegerM O Brose
Jan 1, 1973·Journal of Biomedical Materials Research·J A Tesk, O Widera
Jan 1, 1982·Journal of Dental Research·S D CookJ J Klawitter
Jan 1, 1981·Journal of Biomechanics·C J LaverniaJ J Klawitter

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Citations

Jan 23, 2016·Computational and Mathematical Methods in Medicine·M CicciùG Risitano

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