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Article: Comparison of forces generated during root canal shaping and residual stresses of three nickel–titanium rotary files by using a three-dimensional finite-element analysis

TitleComparison of forces generated during root canal shaping and residual stresses of three nickel–titanium rotary files by using a three-dimensional finite-element analysis
Authors
Issue Date2008
PublisherElsevier Inc. The Journal's web site is located at http://www.jendodon.com
Citation
Journal Of Endodontics, 2008, v. 34 n. 6, p. 743-747 How to Cite?
AbstractThe study was aimed to compare the stress distribution during simulated root canal shaping and to estimate the residual stress thereafter for some nickel-titanium rotary instruments. Three brands of instruments (ProFile, ProTaper, and ProTaper Universal; Dentsply Maillefer) were scanned with micro-computed tomography to produce a real-size, 3-dimensional model for each. The stresses on the instrument during simulated shaping of a root canal were analyzed numerically by using a 3-dimensional finite-element package, taking into account the nonlinear mechanical behavior of the nickel-titanium material. From the simulation, the original ProTaper design showed the greatest pull in the apical direction and the highest reaction torque from the root canal wall, whereas ProFile showed the least. In ProTaper, stresses were concentrated at the cutting edge, and the residual stress reached a level close to the critical stress for phase transformation of the material. The residual stress was highest in ProTaper followed by ProTaper Universal and ProFile. © 2008 American Association of Endodontists.
Persistent Identifierhttp://hdl.handle.net/10722/67140
ISSN
2015 Impact Factor: 2.904
2015 SCImago Journal Rankings: 1.681
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKim, HCen_HK
dc.contributor.authorCheung, GSPen_HK
dc.contributor.authorLee, CJen_HK
dc.contributor.authorKim, BMen_HK
dc.contributor.authorPark, JKen_HK
dc.contributor.authorKang, SIen_HK
dc.date.accessioned2010-09-06T05:52:18Z-
dc.date.available2010-09-06T05:52:18Z-
dc.date.issued2008en_HK
dc.identifier.citationJournal Of Endodontics, 2008, v. 34 n. 6, p. 743-747en_HK
dc.identifier.issn0099-2399en_HK
dc.identifier.urihttp://hdl.handle.net/10722/67140-
dc.description.abstractThe study was aimed to compare the stress distribution during simulated root canal shaping and to estimate the residual stress thereafter for some nickel-titanium rotary instruments. Three brands of instruments (ProFile, ProTaper, and ProTaper Universal; Dentsply Maillefer) were scanned with micro-computed tomography to produce a real-size, 3-dimensional model for each. The stresses on the instrument during simulated shaping of a root canal were analyzed numerically by using a 3-dimensional finite-element package, taking into account the nonlinear mechanical behavior of the nickel-titanium material. From the simulation, the original ProTaper design showed the greatest pull in the apical direction and the highest reaction torque from the root canal wall, whereas ProFile showed the least. In ProTaper, stresses were concentrated at the cutting edge, and the residual stress reached a level close to the critical stress for phase transformation of the material. The residual stress was highest in ProTaper followed by ProTaper Universal and ProFile. © 2008 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.subject.meshComputer Simulationen_HK
dc.subject.meshDental Alloysen_HK
dc.subject.meshDental Instrumentsen_HK
dc.subject.meshDental Stress Analysis - methodsen_HK
dc.subject.meshElasticityen_HK
dc.subject.meshEquipment Designen_HK
dc.subject.meshFinite Element Analysisen_HK
dc.subject.meshHumansen_HK
dc.subject.meshImaging, Three-Dimensionalen_HK
dc.subject.meshNickelen_HK
dc.subject.meshPhase Transitionen_HK
dc.subject.meshRoot Canal Preparation - instrumentation - methodsen_HK
dc.subject.meshTitaniumen_HK
dc.subject.meshTorqueen_HK
dc.titleComparison of forces generated during root canal shaping and residual stresses of three nickel–titanium rotary files by using a three-dimensional finite-element analysisen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0099-2399&volume=34&spage=743&epage=747&date=2008&atitle=Comparison+of+forces+generated+during+root+canal+shaping+and+residual+stresses+of+three+nickel-titanium+rotary+files+by+using+a+three-dimensional+finite-element+analysisen_HK
dc.identifier.emailCheung, GSP:spcheung@hkucc.hku.hken_HK
dc.identifier.authorityCheung, GSP=rp00016en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.joen.2008.03.015en_HK
dc.identifier.pmid18498904-
dc.identifier.scopuseid_2-s2.0-43549102627en_HK
dc.identifier.hkuros142135en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-43549102627&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume34en_HK
dc.identifier.issue6en_HK
dc.identifier.spage743en_HK
dc.identifier.epage747en_HK
dc.identifier.isiWOS:000256454500024-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridKim, HC=8988729500en_HK
dc.identifier.scopusauthoridCheung, GSP=7005809531en_HK
dc.identifier.scopusauthoridLee, CJ=7410147626en_HK
dc.identifier.scopusauthoridKim, BM=34771023600en_HK
dc.identifier.scopusauthoridPark, JK=24177865700en_HK
dc.identifier.scopusauthoridKang, SI=14056093700en_HK

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