Measurement of gap between abutment and fixture in dental conical connection implants. A focused ion beam SEM observation
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Measurement of gap between abutment and fixture in dental conical connection implants. A focused ion beam SEM observation

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Measurement of gap between abutment and fixture in dental conical connection implants. A focused ion beam SEM observation

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dc.contributor.author Carnovale, Fabio es
dc.contributor.author Patini, Romeo es
dc.contributor.author Peñarrocha Oltra, David es
dc.contributor.author Muzzi, Maurizio es
dc.contributor.author Pistilli, Roberto es
dc.contributor.author Canullo, Luigi es
dc.date.accessioned 2021-01-15T09:31:05Z
dc.date.available 2021-01-15T09:31:05Z
dc.date.issued 2020 es
dc.identifier.uri https://hdl.handle.net/10550/77157
dc.description.abstract The aim of the authors was to examine the abutment-fixture interface in Morse-type conical implants in order to verify gaps at this level using a new microscopical approach. In this in vitro study, 20 abutment-fixture complexes were prepared by sectioning (longitudinal and cross-sectional to the long axis) with a microtome and then with a focused ion beam (FIB). This is a micrometric machine tool that uses gallium ions to abrade circumscribed areas to dig deeper into the cuts obtained with the microtome in order to eliminate cut-induced artifacts. This is because the FIB abrasion is practically free from artifacts, which are normally generated by the action of the microtome blades or other techniques. Samples were then observed by scanning electron microscopy (SEM). The observation of the abraded parts with the FIB permitted measurement of the real gap between the implant-abutment components. A variable amount of gap was retrieved (from 0 to 3 ?m) by the observations, confirming the non-hermetic nature of the connection. It has to be pointed out that in approximately 65% of cases, the gap accounted for less than 1 ?m. The reported data confirmed that the analyzed connection system allowed for minimal gap. However, from the evidence of the present analysis, it cannot be assumed that the 2 parts of a Morse-type conical implant are fused in 1 piece, which would create a perfectly matched hermetic connection. es
dc.source Carnovale, Fabio ; Patini, Romeo ; Peñarrocha Oltra, David ; Muzzi, Maurizio ; Pistilli, Roberto ; Canullo, Luigi. Measurement of gap between abutment and fixture in dental conical connection implants. A focused ion beam SEM observation. En: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, 25 4 2020: 13- es
dc.title Measurement of gap between abutment and fixture in dental conical connection implants. A focused ion beam SEM observation 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.identifier.doi 10.4317/medoral.23281 es

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