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dc.contributor.authorKim, Yul
dc.contributor.authorLove, Robert
dc.contributor.authorGeorge, Roy
dc.date.accessioned2017-11-10T00:36:21Z
dc.date.available2017-11-10T00:36:21Z
dc.date.issued2017
dc.identifier.issn0099-2399
dc.identifier.doi10.1016/j.joen.2017.04.008
dc.identifier.urihttp://hdl.handle.net/10072/351278
dc.description.abstractIntroduction: The aim of this study was to evaluate the changes in the surface profile of rotary nickel-titanium (NiTi) files designed to prepare a glide path and conventional stainless steel (SS) hand files when used in extremely narrow canals both in clinical and experimental conditions. Methods: This ex vivo/in vivo study used either SS #10 K hand files or the PathFile system (Dentsply Maillefer, Ballaigues, Switzerland) to establish a glide path in maxillary molars with narrow root canals (defined as canals that bound a #8 K-file at the working length). After treatment, all files were cleaned and scanned using a noncontact laser profilometer. Changes to the surface profile (Ra cutting edge waviness = RaCEW) and roughness (Ra cutting edge roughness = RaCER) of the cutting edges and the surface roughness of the flute area (Sa flute roughness = SaFR) were analyzed. Results: #10 K-files had significant increases in all types of measurements (RaCEW, RaCEW, and SaFR) after the preparation of second mesiobuccal canals compared with the control group (P < .05) in both studies. In the ex vivo study, the PathFile (P1) had no significant changes in the surface profile from baseline but had a significant increase in the surface roughness of the flute (SaFR) (P < .05). PathFiles that were used 3 times in vivo had a significant increase in roughness (flute and cutting edge) values across all PathFile sizes compared with control values. Conclusions: This study showed that PathFiles had significantly less surface defects compared with SS files after the preparation of narrow canals, indicating their possible benefits when establishing a glide path in extremely narrow canals.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofpagefrom1674
dc.relation.ispartofpageto1678
dc.relation.ispartofissue10
dc.relation.ispartofjournalJournal of Endodontics
dc.relation.ispartofvolume43
dc.subject.fieldofresearchDentistry
dc.subject.fieldofresearchEndodontics
dc.subject.fieldofresearchcode3203
dc.subject.fieldofresearchcode320304
dc.titleSurface changes of Pathfile after glide path preparation: An Ex Vivo and In Vivo study
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionAccepted Manuscript (AM)
gro.facultyGriffith Health, School of Dentistry and Oral Health
gro.hasfulltextNo Full Text
gro.griffith.authorGeorge, Roy


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