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Electrochemical corrosion assessment of RaCe and Mtwo rotary nickle-titanium instruments after clinical use and sterilization

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Electrochemical corrosion assessment of RaCe and Mtwo rotary nickle-titanium instruments after clinical use and sterilization

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dc.contributor.author Shahi, Shahriar es
dc.contributor.author Mokhtari, Hadi es
dc.contributor.author Rahimi, Saeed es
dc.contributor.author Shiezadeh, Vahab es
dc.contributor.author Ashasi, Habib es
dc.contributor.author Abdolrahimi, Majid es
dc.contributor.author Foroughreyhani, Mohammad es
dc.date.accessioned 2017-07-25T12:11:23Z
dc.date.available 2017-07-25T12:11:23Z
dc.date.issued 2012 es
dc.identifier.citation Shahi, Shahriar ; Mokhtari, Hadi ; Rahimi, Saeed ; Shiezadeh, Vahab ; Ashasi, Habib ; Abdolrahimi, Majid ; Foroughreyhani, Mohammad. Electrochemical corrosion assessment of RaCe and Mtwo rotary nickle-titanium instruments after clinical use and sterilization. En: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, 17 2 2012: 3- es
dc.identifier.uri http://hdl.handle.net/10550/59994
dc.description.abstract Aim: The aim of the present study was to electrochemically evaluate corrosion resistance of RaCe and Mtwo files after repeated sterilization and preparation procedures. Study Design: A total of 450 rotary files were used. In the working groups, 72 files from each file type were distributed into 4 groups. RaCe and Mtwo files were used to prepare one root canal of the mesial root of extracted human mandibular first molars. The procedure was repeated to prepare 2 to 8 canals. The following irrigation solutions were used: group 1, RaCe files with 2.5% NaOCl; group 2, RaCe files with normal saline; group 3, Mtwo files with 2.5% NaOCl; and group 4, Mtwo files with normal saline in the manner described. In autoclave groups, 72 files from each file type were evenly distributed into 2 groups. Files were used for a cycle of sterilization without the use of files for root canal preparation. Nine new unused files from each file type were used as controls. Then the instruments were sent for corrosion assessment. Mann-Whitney U and Wilcoxon tests were used for independent and dependent groups, respectively. Results: Statistical analysis indicated that there were significant differences in corrosion resistance of files associated with working and autoclave groups between RaCe and Mtwo file types (p<0.001). Conclusions: Corrosion resistance of #25, #30, and #35 Mtwo files is significantly higher than that in RaCe files with similar sizes. © Medicina Oral. es
dc.title Electrochemical corrosion assessment of RaCe and Mtwo rotary nickle-titanium instruments after clinical use and sterilization es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/medoral.17413 es
dc.type.hasVersion VoR es_ES

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