Mechanical behavior of single-layer ceramized zirconia abutments for dental implant prosthetic rehabilitation
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Mechanical behavior of single-layer ceramized zirconia abutments for dental implant prosthetic rehabilitation

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Mechanical behavior of single-layer ceramized zirconia abutments for dental implant prosthetic rehabilitation

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dc.contributor.author Jiménez Melendo, Manuel es
dc.contributor.author Llena Blasco, Oriol es
dc.contributor.author Bruguera Alvarez, August es
dc.contributor.author Llena Blasco, Jaime es
dc.contributor.author Yáñez Vico, Rosa María es
dc.contributor.author García Calderón, Manuel es
dc.contributor.author Vaquero Aguilar, Cristina es
dc.contributor.author Velázquez Cayón, Rocío es
dc.contributor.author Gutiérrez Pérez, José Luis es
dc.contributor.author Torres Lagares, Daniel es
dc.date.accessioned 2015-01-20T09:11:49Z
dc.date.available 2015-01-20T09:11:49Z
dc.date.issued 2014 es
dc.identifier.uri http://hdl.handle.net/10550/41300
dc.source Jiménez Melendo, Manuel ; Llena Blasco, Oriol ; Bruguera Alvarez, August ; Llena Blasco, Jaime ; Yáñez Vico, Rosa María ; García Calderón, Manuel ; Vaquero Aguilar, Cristina ; Velázquez Cayón, Rocío ; Gutiérrez Pérez, José Luis ; Torres-Lagares, Daniel. Mechanical behavior of single-layer ceramized zirconia abutments for dental implant prosthetic rehabilitation. En: Journal of Clinical and Experimental Dentistry, 2014, Vol. 6, No. 5: 485-490 es
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Mechanical behavior of single-layer ceramized zirconia abutments for dental implant prosthetic rehabilitation es
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.description.abstractenglish Objectives: This study was undertaken to characterize the mechanical response of bare (as-received) and single- layer ceramized zirconia abutments with both internal and external connections that have been developed to enhan - ced aesthetic restorations. Material and Methods: Sixteen zirconia implant abutments (ZiReal Post®, Biomet 3i, USA) with internal and ex - ternal connections have been analyzed. Half of the specimens were coated with a 0.5mm-thick layer of a low-fusing fluroapatite ceramic. Mechanical tests were carried out under static (constant cross-head speed of 1mm/min until fracture) and dynamic (between 100 and 400N at a frequency of 1Hz) loading conditions. The failure location was identified by electron microscopy. The removal torque of the retaining screws after testing was also evaluated. Results: The average fracture strength was above 300N for all the abutments, regardless of connection geometry and coating. In most of the cases (94%), failure occurred by abutment fracture. No significant differences were observed either in fatigue behavior and removal torque between the different abutment groups. Conclusions: Mechanical behavior of Zireal zirconia abutments is independent of the type of internal/external connection and the presence/absence of ceramic coating. This may be clinically valuable in dental rehabilitation to improve the aesthetic outcome of zirconia-based dental implant systems. es

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