A numerical method for predicting the bending fatigue life of NiTi and   stainless steel root canal instruments

doi:10.1111/j.1365-2591.2010.01838.x

CORC > 北京大学 > 工学院

	A numerical method for predicting the bending fatigue life of NiTi and stainless steel root canal instruments
	Cheung, G. S. P. ; Zhang, E. W. ; Zheng, Y. F.
刊名	international endodontic journal
	2011
关键词	bending fatigue finite element analysis nickel-titanium root canal instruments stainless steel TITANIUM ROTARY INSTRUMENTS LOW-CYCLE FATIGUE CLINICAL-USE ENDODONTIC INSTRUMENTS PROTAPER PROFILE FILES RESISTANCE STRESSES FRACTURE
DOI	10.1111/j.1365-2591.2010.01838.x
英文摘要	P>Aim To evaluate the bending fatigue lifetime of nickel-titanium alloy (NiTi) and stainless steel (SS) endodontic files using finite element analysis. Methodology The strain-life approach was adopted and two theoretical geometry profiles, the triangular (TR) and the square cross-sections, were considered. Both low-cycle fatigue (LCF) lifetime and high-cycle fatigue (HCF) lifetime were evaluated. Results The bending fatigue behaviour was affected by the material property and the cross-sectional configuration of the instrument. Both the cross-section factor and material property had a substantial impact on fatigue lifetime. The NiTi material and TR geometry profiles were associated with better fatigue resistance than that of SS and square cross-sections. Conclusions Within the limitations of this study, finite element models were established for endodontic files to prejudge their fatigue lifetime, a tool that would be useful for dentist to prevent premature fatigue fracture of endodontic files.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000287703400011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Dentistry, Oral Surgery & Medicine; SCI(E); 14; ARTICLE; 4; 357-361; 44
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/240360]
专题	工学院
推荐引用方式 GB/T 7714	Cheung, G. S. P.,Zhang, E. W.,Zheng, Y. F.. A numerical method for predicting the bending fatigue life of NiTi and stainless steel root canal instruments[J]. international endodontic journal,2011.
APA	Cheung, G. S. P.,Zhang, E. W.,&Zheng, Y. F..(2011).A numerical method for predicting the bending fatigue life of NiTi and stainless steel root canal instruments.international endodontic journal.
MLA	Cheung, G. S. P.,et al."A numerical method for predicting the bending fatigue life of NiTi and stainless steel root canal instruments".international endodontic journal (2011).