Effect of different implant designs on strain and stress distribution under non-axial loading: a three-dimensional finite element analysis
Autor/a
Oliveira, Hélder
Ríos-Santos, José-Vicente
Sánchez Lasheras, Fernando
Ferreira Lemos, Bernardo
Gil Mur, Francisco Javier
Carvalho, Alexandrine
Data de publicació
2020ISSN
1660-4601
Resum
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.
Tipus de document
Article
Versió del document
Versió publicada
Llengua
English
Matèries (CDU)
616.3 - Patologia de l'aparell digestiu. Odontologia
Paraules clau
Implants dentals
Odontologia
Boca -- Cirurgia
Implantes dentales
Odontologia
Boca -- Cirugía
Dental implants
Odontology
Mouth -- Surgery
Pàgines
17
Publicat per
MDPI
Col·lecció
17; 13
Publicat a
International Journal of Environmental Research and Public Health
Citació
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
Aquest element apareix en la col·lecció o col·leccions següent(s)
- Ciències de la Salut [740]
Drets
© 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/).
Excepte que s'indiqui una altra cosa, la llicència de l'ítem es descriu com http://creativecommons.org/licenses/by/4.0