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dc.contributor.authorVelasco-Ortega, Eugenio
dc.contributor.authorFlichy-Fernández, Antonio
dc.contributor.authorPunset, Miquel
dc.contributor.authorJiménez-Guerra, Alvaro
dc.contributor.authorManero, José María
dc.contributor.authorGil, Javier
dc.date.accessioned2020-02-29T18:01:21Z
dc.date.available2020-02-29T18:01:21Z
dc.date.issued2019-11-12
dc.identifier.citationVelasco-Ortega, Eugenio; Flichy-Fernández, Antonio; Punset, Miquel [et al.]. Fracture and fatigue of titanium narrow dental implants: new trends in order to improve the mechanical response. Materials, 2019, vol. 12, núm. 22, e3728. Disponible en: <https://www.mdpi.com/1996-1944/12/22/3728/htm>. Fecha de acceso: 29 feb. 2020. DOI: 10.3390/ma12223728ca
dc.identifier.issn1996-1944ca
dc.identifier.urihttp://hdl.handle.net/20.500.12328/1470
dc.description.abstractSixty-four fractured commercially pure titanium (cp-Ti) narrow dental implants (NDIs) with similar macrogeometry and connection designs were studied after different implantation times in humans in order to determine their reliability and to evaluate the causes of the fracture. These NDIs were compared with other similar implants, made with alloyed titanium with 15% Zr and with 12% strained titanium. Original implants were tested under static and fatigue conditions, simulating the tri-axial loads in the mouth by means of a Bionix hydraulic test machine. Fractography was studied using field-emission scanning electron microscopy (FSEM). The results showed that cp-Ti NDI exhibits low strength for mechanical cycling, and the alloyed Ti and strained titanium increase the mechanical strength, guaranteeing long term mechanical behavior. NDIs fractured due to fatigue, and, in some cases, the presence of cracks in the original NDIs quickly led to fracture. These cracks were attributed to plastic deformation during machining were found to be exacerbated due to acid etching in the passivation process. All cases of fracture were cp-Ti dental implants due to the low fatigue limit. The results show that, when titanium is alloyed or cold-worked, the fatigue limit is higher than cp-Ti. This in vitro research will help clinicians to select a better NDI system for safer treatment.ca
dc.format.extent11ca
dc.language.isoengca
dc.publisherMDPIca
dc.relation.ispartofMaterialsca
dc.relation.ispartofseries12;22
dc.rights© 2019 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/).ca
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject.otherImplants dentalsca
dc.subject.otherTitani
dc.subject.otherOdontologia -- Aparells i instruments
dc.subject.otherMaterials -- Fatiga
dc.subject.otherImplantes dentales
dc.subject.otherTitanio
dc.subject.otherOdontología -- Material y equipo
dc.subject.otherMateriales -- Fatiga
dc.subject.otherDental implants
dc.subject.otherTitanium
dc.subject.otherDentistry -- Materials
dc.subject.otherMaterials -- Fatigue
dc.titleFracture and fatigue of titanium narrow dental implants: new trends in order to improve the mechanical responseca
dc.typeinfo:eu-repo/semantics/articleca
dc.description.versioninfo:eu-repo/semantics/acceptedVersionca
dc.embargo.termscapca
dc.relation.projectIDinfo:eu-repo/grantAgreement/ES/2PE/RTI2018-098075-B-C22ca
dc.subject.udc616.3ca
dc.identifier.doihttps://dx.doi.org/10.3390/ma12223728ca


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© 2019 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/