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BioMed Research International
Volume 2016 (2016), Article ID 1850401, 9 pages
http://dx.doi.org/10.1155/2016/1850401
Research Article

Biomechanical Consequences of the Elastic Properties of Dental Implant Alloys on the Supporting Bone: Finite Element Analysis

1Department of Surgery, Gynecology and Obstetrics, Faculty of Sports and Health Sciences, University of Zaragoza, Huesca, Spain
2Department of Stomatology I, Faculty of Medicine and Dentistry, University of the Basque Country, Leioa, Spain
3Department of Surgery, Faculty of Medicine, University of Salamanca, Salamanca, Spain
4Department of Construction and Manufacturing Engineering, Polytechnic School of Engineering, University of Oviedo, Gijon, Spain
5Department of Graphic Expression and Engineering Projects, Faculty of Engineering, University of the Basque Country, Bilbao, Spain
6Faculty of Medicine and Health Sciences, University of Oviedo, Oviedo, Spain
7Department of Orthodontics and Dentofacial Orthopedics, Faculty of Medicine and Health Sciences, University of Oviedo, Oviedo, Spain
8Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Santiago de Chile, Chile

Received 6 October 2016; Accepted 31 October 2016

Academic Editor: Tamer Tüzüner

Copyright © 2016 Esteban Pérez-Pevida et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The objective of the present study is to evaluate how the elastic properties of the fabrication material of dental implants influence peri-implant bone load transfer in terms of the magnitude and distribution of stress and deformation. A three-dimensional (3D) finite element analysis was performed; the model used was a section of mandibular bone with a single implant containing a cemented ceramic-metal crown on a titanium abutment. The following three alloys were compared: rigid (Y-TZP), conventional (Ti-6Al-4V), and hyperelastic (Ti-Nb-Zr). A 150-N static load was tested on the central fossa at 6° relative to the axial axis of the implant. The results showed no differences in the distribution of stress and deformation of the bone for any of the three types of alloys studied, mainly being concentrated at the peri-implant cortical layer. However, there were differences found in the magnitude of the stress transferred to the supporting bone, with the most rigid alloy (Y-TZP) transferring the least stress and deformation to cortical bone. We conclude that there is an effect of the fabrication material of dental implants on the magnitude of the stress and deformation transferred to peri-implant bone.