Effect of different implant designs on strain and stress distribution under non-axial loading: a three-dimensional finite element analysis
Author
Oliveira, Hélder
Ríos-Santos, José-Vicente
Sánchez Lasheras, Fernando
Ferreira Lemos, Bernardo
Gil Mur, Francisco Javier
Carvalho, Alexandrine
Publication date
2020ISSN
1660-4601
Abstract
Implant design evolved alongside the development of implant therapy. The purpose of this finite element analysis (FEA) study was to analyze the influence of different implant designs on the stress and strain distribution to the implants and surrounding bone. Three implant designs with the same length and diameter were used. The three-dimensional geometry of the bone was simulated with a cortical bone of three different thicknesses and two medullar bone densities: low density (150 Hounsfield units) and high density (850 Hounsfield units). A 30° oblique load of 150 N was applied to the implant restoration. Displacement and stress (von Mises) results were obtained for bone and dental implants. The strain and stress distributions to the bone were higher for the tissue-level implant for all types of bone. The maximum principal strain and stress decreased with an increase in cortical bone thickness for both cancellous bone densities. The distribution of the load was concentrated at the coronal portion of the bone and implants. All implants showed a good distribution of forces for non-axial loads, with higher forces concentrated at the crestal region of the bone–implant interface. Decrease in medullar bone density negatively affects the strain and stress produced by the implants.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
616.3 - Pathology of the digestive system. Complaints of the alimentary canal
Keywords
Implants dentals
Odontologia
Boca -- Cirurgia
Implantes dentales
Odontologia
Boca -- Cirugía
Dental implants
Odontology
Mouth -- Surgery
Pages
17
Publisher
MDPI
Collection
17;13
Is part of
International Journal of Environmental Research and Public Health
Citation
Oliveira, Hélder; Brizuela Velasco, Aritza; Ríos-Santos, José-Vicente [et al.]. Effect of different implant designs on strain and stress distribution under non-axial loading: a three-dimensional finite element analysis. International Journal of Environmental Research and Public Health, 2020, 17(13), p. 1-17. Disponible en: <https://www.mdpi.com/1660-4601/17/13/4738>. Fecha de acceso: 28 jul. 2020. DOI: 10.3390/ijerph17134738
This item appears in the following Collection(s)
- Ciències de la Salut [725]
Rights
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0