File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Does Electropolishing Improve the Low-cycle Fatigue Behavior of a Nickel-Titanium Rotary Instrument in Hypochlorite?

TitleDoes Electropolishing Improve the Low-cycle Fatigue Behavior of a Nickel-Titanium Rotary Instrument in Hypochlorite?
Authors
KeywordsBreakage
corrosion
cracking
fatigue
fracture
nickel-titanium
root canal instruments
Issue Date2007
PublisherElsevier Inc. The Journal's web site is located at http://www.jendodon.com
Citation
Journal Of Endodontics, 2007, v. 33 n. 10, p. 1217-1221 How to Cite?
AbstractThe purpose of this study was to compare the low-cycle fatigue (LCF) behavior of electropolished and nonelectropolished nickel-titanium (NiTi) instruments of the same design in hypochlorite. Forty-five electropolished and 62 nonelectropolished NiTi engine files were subjected to rotational bending at various curvatures in 1.2% hypochlorite solution. Number of revolutions to failure, crack-initiation sites, extent of slow crack extension into the fracture cross-section, and surface-strain amplitude were noted. A linear relationship was found between LCF life and surface-strain amplitude for both groups, with no discernible difference between the two (p > 0.05). No electropolished instrument showed more than one crack origin, significantly fewer than for the nonelectropolished instruments (p < 0.05). The square root of crack extension and strain amplitude were inversely related. Although surface smoothness is enhanced by electropolishing, this did not protect the instrument from LCF failure. © 2007 American Association of Endodontists.
Persistent Identifierhttp://hdl.handle.net/10722/67069
ISSN
2015 Impact Factor: 2.904
2015 SCImago Journal Rankings: 1.681
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCheung, GSPen_HK
dc.contributor.authorShen, Yen_HK
dc.contributor.authorDarvell, BWen_HK
dc.date.accessioned2010-09-06T05:51:42Z-
dc.date.available2010-09-06T05:51:42Z-
dc.date.issued2007en_HK
dc.identifier.citationJournal Of Endodontics, 2007, v. 33 n. 10, p. 1217-1221en_HK
dc.identifier.issn0099-2399en_HK
dc.identifier.urihttp://hdl.handle.net/10722/67069-
dc.description.abstractThe purpose of this study was to compare the low-cycle fatigue (LCF) behavior of electropolished and nonelectropolished nickel-titanium (NiTi) instruments of the same design in hypochlorite. Forty-five electropolished and 62 nonelectropolished NiTi engine files were subjected to rotational bending at various curvatures in 1.2% hypochlorite solution. Number of revolutions to failure, crack-initiation sites, extent of slow crack extension into the fracture cross-section, and surface-strain amplitude were noted. A linear relationship was found between LCF life and surface-strain amplitude for both groups, with no discernible difference between the two (p > 0.05). No electropolished instrument showed more than one crack origin, significantly fewer than for the nonelectropolished instruments (p < 0.05). The square root of crack extension and strain amplitude were inversely related. Although surface smoothness is enhanced by electropolishing, this did not protect the instrument from LCF failure. © 2007 American Association of Endodontists.en_HK
dc.languageengen_HK
dc.publisherElsevier Inc. The Journal's web site is located at http://www.jendodon.comen_HK
dc.relation.ispartofJournal of Endodonticsen_HK
dc.rightsThe Journal of Endodontics. Copyright © Lippincott Williams & Wilkins.en_HK
dc.subjectBreakageen_HK
dc.subjectcorrosionen_HK
dc.subjectcrackingen_HK
dc.subjectfatigueen_HK
dc.subjectfractureen_HK
dc.subjectnickel-titaniumen_HK
dc.subjectroot canal instrumentsen_HK
dc.subject.meshDental Alloys - chemistryen_HK
dc.subject.meshDental Polishing - methodsen_HK
dc.subject.meshDisinfectants - chemistryen_HK
dc.subject.meshEquipment Designen_HK
dc.subject.meshEquipment Failureen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMaterials Testingen_HK
dc.subject.meshNickel - chemistryen_HK
dc.subject.meshRoot Canal Preparation - instrumentationen_HK
dc.subject.meshRotationen_HK
dc.subject.meshSodium Hypochlorite - chemistryen_HK
dc.subject.meshStress, Mechanicalen_HK
dc.subject.meshSurface Propertiesen_HK
dc.subject.meshTitanium - chemistryen_HK
dc.titleDoes Electropolishing Improve the Low-cycle Fatigue Behavior of a Nickel-Titanium Rotary Instrument in Hypochlorite?en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0099-2399&volume=33&spage=1217&epage=1221&date=2007&atitle=Does+electropolishing+improve+the+low-cycle+fatigue+behavior+of+a+nickel-titanium+rotary+instrument+in+hypochlorite?en_HK
dc.identifier.emailCheung, GSP: spcheung@hkucc.hku.hken_HK
dc.identifier.emailDarvell, BW: b.w.darvell@hku.hken_HK
dc.identifier.authorityCheung, GSP=rp00016en_HK
dc.identifier.authorityDarvell, BW=rp00007en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.joen.2007.07.022en_HK
dc.identifier.pmid17889693-
dc.identifier.scopuseid_2-s2.0-34548537569en_HK
dc.identifier.hkuros138256en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34548537569&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume33en_HK
dc.identifier.issue10en_HK
dc.identifier.spage1217en_HK
dc.identifier.epage1221en_HK
dc.identifier.isiWOS:000249965000015-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridCheung, GSP=7005809531en_HK
dc.identifier.scopusauthoridShen, Y=7404767171en_HK
dc.identifier.scopusauthoridDarvell, BW=7005953926en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats