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Article: Mathematical Modeling of Flexural Behavior of Rotary Nickel-Titanium Endodontic Instruments

TitleMathematical Modeling of Flexural Behavior of Rotary Nickel-Titanium Endodontic Instruments
Authors
KeywordsFlexibility
flexural behavior
nickel-titanium instrument
rotary files
Issue Date2006
PublisherElsevier Inc. The Journal's web site is located at http://www.jendodon.com
Citation
Journal Of Endodontics, 2006, v. 32 n. 6, p. 545-548 How to Cite?
AbstractThe aim of the present study was to establish a mathematical model to characterize the flexural behavior of nickel-titanium (NiTi) rotary instruments. The bending behavior of ProFile (0.06 and 0.04 tapers), K-3 (0.06 taper), Quantec (0.04 taper) with tip size of ISO 25, was assessed by pressing the tip of the static rotary file against a smooth, freely movable, glass surface. The deflected instrument was photographed digitally, and the deflection path was digitized in software, to which data a function was fitted that best described the bending behavior of the instrument. It was found that all instruments deflected in a manner closely resembling a negative exponential function: y = A ṡ e- x / b. The present approach indicated that the analytical difficulties of handling the complex cross-section in tapering spirals in beam-bending theory may be circumvented by a practical and elementary curve-fitting method. © 2006 American Association of Endodontists.
Persistent Identifierhttp://hdl.handle.net/10722/66700
ISSN
2015 Impact Factor: 2.904
2015 SCImago Journal Rankings: 1.681
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLow, Den_HK
dc.contributor.authorHo, AWLen_HK
dc.contributor.authorCheung, GSPen_HK
dc.contributor.authorDarvell, BWen_HK
dc.date.accessioned2010-09-06T05:48:35Z-
dc.date.available2010-09-06T05:48:35Z-
dc.date.issued2006en_HK
dc.identifier.citationJournal Of Endodontics, 2006, v. 32 n. 6, p. 545-548en_HK
dc.identifier.issn0099-2399en_HK
dc.identifier.urihttp://hdl.handle.net/10722/66700-
dc.description.abstractThe aim of the present study was to establish a mathematical model to characterize the flexural behavior of nickel-titanium (NiTi) rotary instruments. The bending behavior of ProFile (0.06 and 0.04 tapers), K-3 (0.06 taper), Quantec (0.04 taper) with tip size of ISO 25, was assessed by pressing the tip of the static rotary file against a smooth, freely movable, glass surface. The deflected instrument was photographed digitally, and the deflection path was digitized in software, to which data a function was fitted that best described the bending behavior of the instrument. It was found that all instruments deflected in a manner closely resembling a negative exponential function: y = A ṡ e- x / b. The present approach indicated that the analytical difficulties of handling the complex cross-section in tapering spirals in beam-bending theory may be circumvented by a practical and elementary curve-fitting method. © 2006 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.subjectFlexibilityen_HK
dc.subjectflexural behavioren_HK
dc.subjectnickel-titanium instrumenten_HK
dc.subjectrotary filesen_HK
dc.subject.meshDental High-Speed Equipmenten_HK
dc.subject.meshElasticityen_HK
dc.subject.meshModels, Theoreticalen_HK
dc.subject.meshNickel - chemistryen_HK
dc.subject.meshRoot Canal Therapy - instrumentationen_HK
dc.subject.meshRotationen_HK
dc.subject.meshTitanium - chemistryen_HK
dc.titleMathematical Modeling of Flexural Behavior of Rotary Nickel-Titanium Endodontic Instrumentsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0099-2399&volume=32&spage=545&epage=548&date=2006&atitle=Mathematical+modeling+of+flexural+behavior+of+rotary+nickel-titanium+endodontic+instrumentsen_HK
dc.identifier.emailLow, D: dcylow@hkucc.hku.hken_HK
dc.identifier.emailCheung, GSP: spcheung@hkucc.hku.hken_HK
dc.identifier.emailDarvell, BW: b.w.darvell@hku.hken_HK
dc.identifier.authorityLow, D=rp00039en_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.2005.10.058en_HK
dc.identifier.pmid16728247-
dc.identifier.scopuseid_2-s2.0-33646689599en_HK
dc.identifier.hkuros115929en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33646689599&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume32en_HK
dc.identifier.issue6en_HK
dc.identifier.spage545en_HK
dc.identifier.epage548en_HK
dc.identifier.isiWOS:000237955800010-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLow, D=7202083571en_HK
dc.identifier.scopusauthoridHo, AWL=13605365900en_HK
dc.identifier.scopusauthoridCheung, GSP=7005809531en_HK
dc.identifier.scopusauthoridDarvell, BW=7005953926en_HK

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