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Open AccessArticle

Effect of Different Implant Designs on Strain and Stress Distribution under Non-Axial Loading: A Three-Dimensional Finite Element Analysis

1
Faculty of Health Sciences, University Fernando Pessoa, 4200-150 Porto, Portugal
2
Department of Surgery and Medical-surgical Specialties, University of Oviedo, 33006 Oviedo, Spain
3
Department of Periodontology, University of Seville, School of Dentistry, 41009 Sevilla, Spain
4
Mathematics Department, Faculty of Sciences, University of Oviedo, Oviedo 33007, Spain
5
Bioengineering Institute of Technology, International University of Catalonia, 08017 Barcelona, Spain
6
Porto Dental Institute, 4150-518 Oporto, Portugal
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(13), 4738; https://doi.org/10.3390/ijerph17134738
Received: 12 May 2020 / Revised: 20 June 2020 / Accepted: 26 June 2020 / Published: 1 July 2020
(This article belongs to the Special Issue Impact of Dental Implants on Oral Health)
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. View Full-Text
Keywords: dental implants; design; finite element analysis; strain distribution; stress distribution; bone quality dental implants; design; finite element analysis; strain distribution; stress distribution; bone quality
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MDPI and ACS Style

Oliveira, H.; Brizuela Velasco, A.; Ríos-Santos, J.-V.; Sánchez Lasheras, F.; Lemos, B.F.; Gil, F.J.; Carvalho, A.; Herrero-Climent, M. Effect of Different Implant Designs on Strain and Stress Distribution under Non-Axial Loading: A Three-Dimensional Finite Element Analysis. Int. J. Environ. Res. Public Health 2020, 17, 4738. https://doi.org/10.3390/ijerph17134738

AMA Style

Oliveira H, Brizuela Velasco A, Ríos-Santos J-V, Sánchez Lasheras F, Lemos BF, Gil FJ, Carvalho A, Herrero-Climent M. 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):4738. https://doi.org/10.3390/ijerph17134738

Chicago/Turabian Style

Oliveira, Hélder; Brizuela Velasco, Aritza; Ríos-Santos, José-Vicente; Sánchez Lasheras, Fernando; Lemos, Bernardo F.; Gil, Francisco J.; Carvalho, Alexandrine; Herrero-Climent, Mariano. 2020. "Effect of Different Implant Designs on Strain and Stress Distribution under Non-Axial Loading: A Three-Dimensional Finite Element Analysis" Int. J. Environ. Res. Public Health 17, no. 13: 4738. https://doi.org/10.3390/ijerph17134738

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