Show simple item record

dc.contributor.authorValera Jiménez, José Fernando
dc.contributor.authorGómez González, Sergio
dc.contributor.authorLópez López, José
dc.contributor.authorValmaseda Castellon, Eduardo
dc.contributor.authorFernández Aguado, Enrique
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d’Enginyeria Gràfica i de Disseny
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials
dc.date.accessioned2020-10-13T13:08:47Z
dc.date.available2021-07-08T00:27:43Z
dc.date.issued2020-07-08
dc.identifier.citationValera, J. [et al.]. Finite element analysis of narrow dental implants. "Dental materials", 8 Juliol 2020, vol. 36, núm. 7, p. 927-935.
dc.identifier.issn0109-5641
dc.identifier.urihttp://hdl.handle.net/2117/330167
dc.description.abstractNarrow-diameter implants (NDIs) traditionally have been associated to higher rates of failure in comparison with regular-diameter implants (RDIs) and wide-diameter implants (WDIs), since they generate a more unfavorable stress distribution in peri-implant bone. However, it is well known that the load sharing effect associated with prostheses supported by multiple implants (also called splinted prostheses) affords mechanical benefits. The present study involves finite element analysis (FEA) to determine whether the risks linked to NDIs could be mitigated by the mechanical advantages afforded by the splinting concept. For this purpose, a three-dimensional (3D) model of a real maxilla was reconstructed from computed tomography (CT) images, and different implants (NDIs, RDIs and WDIs) and prostheses were created using computer-aided design (CAD) tools. Biting forces were simulated on the prostheses corresponding to three different rehabilitation solutions: single-implant restoration, three-unit bridge and all-on-four treatment. Stress distribution around the implants was calculated, and overloading in bone was quantified within peri-implant volumes enclosed by cylinders with a diameter 0.1 mm greater than that of each implant. The mechanical benefits of the splinting concept were confirmed: the peri-implant overloaded volume around NDIs splinted by means of the three-unit bridge was significantly reduced in comparison with the nonsplinted condition and, most importantly, proved even smaller than that around nonsplinted implants with a larger diameter (RDIs). However, splinted NDIs supporting the all-on-four prosthesis led to the highest risk of overloading found in the study, due to the increase in compressive stress generated around the tilted implant when loading the cantilevered molar.
dc.format.extent9 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica::Biomaterials::Materials dentals
dc.subject.lcshDental implants
dc.subject.otherOsseointegration
dc.subject.otherEndosseous dental implantation
dc.subject.otherMaxilla
dc.subject.otherEdentulous jaw
dc.subject.otherMechanical stress
dc.subject.otherCompressive strength
dc.subject.otherTensile strength
dc.subject.otherImplant-supported dental prosthesis
dc.subject.otherSingle-tooth dental implant
dc.titleFinite element analysis of narrow dental implants
dc.typeArticle
dc.subject.lemacImplants dentals
dc.contributor.groupUniversitat Politècnica de Catalunya. InSup - Grup de Recerca en Interacció de Superfícies en Bioenginyeria i Ciència dels Materials
dc.identifier.doi10.1016/j.dental.2020.04.013
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/abs/pii/S0109564120301226
dc.rights.accessOpen Access
local.identifier.drac28989642
dc.description.versionPostprint (author's final draft)
local.citation.authorValera, J.; Gomez, S.; Lopez, J.; Valmaseda, E.; Fernandez, E.
local.citation.publicationNameDental materials
local.citation.volume36
local.citation.number7
local.citation.startingPage927
local.citation.endingPage935


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record