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Microstructure alterations of rotary files after multiple simulated operative procedures

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Microstructure alterations of rotary files after multiple simulated operative procedures

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dc.contributor.author Luzi Luzi, Arlinda es
dc.contributor.author Forner Navarro, Leopoldo es
dc.contributor.author Almenar García, Amelia del Pilar es
dc.contributor.author Llena Puy, María Carmen es
dc.date.accessioned 2017-07-27T06:56:54Z
dc.date.available 2017-07-27T06:56:54Z
dc.date.issued 2010 es
dc.identifier.citation Luzi Luzi, Arlinda ; Forner Navarro, Leopoldo ; Almenar García, Amelia del Pilar ; Llena Puy, María Carmen. Microstructure alterations of rotary files after multiple simulated operative procedures. En: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, 15 4 2010: 23- es
dc.identifier.uri http://hdl.handle.net/10550/60325
dc.description.abstract Aim: To assess morphological alterations of ProTaper rotary NiTi files before and after continuous use by scanning electron microscopy (SEM). Study Design: 30 root canals were chosen with an angle between 15 and 30º. Before starting to prepare the canals the files were observed microscopically using a scanning electronic microscope. The ProTaper sequence recommended by the manufacturer was used, with NaOCl as irrigant. The instruments were sterilised after every three canals were shaped. The instruments were observed with the same microscope after shaping each canal, until 30 root canals were shaped. The criteria used for checking the instruments were: blunt cutting edges, disruption of cutting edge, microfractures, fatigue cracks, metal flash, dentine remains. Results: Many microscopic defects were found such as: cutting edge breaks (up to 70%); fatigue cracks, between 33 and 100%. No microfractures were found. An S1 and an SX file were fractured. Conclusion: ProTaper instruments are quite reliable if used following usual requirements. es
dc.title Microstructure alterations of rotary files after multiple simulated operative procedures es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/medoral.15.e658 es
dc.type.hasVersion VoR es_ES

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