dc.contributor.author | Kim, Yul | |
dc.contributor.author | Love, Robert | |
dc.contributor.author | George, Roy | |
dc.date.accessioned | 2017-11-10T00:36:21Z | |
dc.date.available | 2017-11-10T00:36:21Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0099-2399 | |
dc.identifier.doi | 10.1016/j.joen.2017.04.008 | |
dc.identifier.uri | http://hdl.handle.net/10072/351278 | |
dc.description.abstract | Introduction: 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.peerreviewed | Yes | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | Elsevier | |
dc.relation.ispartofpagefrom | 1674 | |
dc.relation.ispartofpageto | 1678 | |
dc.relation.ispartofissue | 10 | |
dc.relation.ispartofjournal | Journal of Endodontics | |
dc.relation.ispartofvolume | 43 | |
dc.subject.fieldofresearch | Dentistry | |
dc.subject.fieldofresearch | Endodontics | |
dc.subject.fieldofresearchcode | 3203 | |
dc.subject.fieldofresearchcode | 320304 | |
dc.title | Surface changes of Pathfile after glide path preparation: An Ex Vivo and In Vivo study | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
dc.description.version | Accepted Manuscript (AM) | |
gro.faculty | Griffith Health, School of Dentistry and Oral Health | |
gro.hasfulltext | No Full Text | |
gro.griffith.author | George, Roy | |