Full Content is available to subscribers

Subscribe/Learn More  >

Impact of Helix and Taper on Structural Characteristics of a Nickel-Titanium Endodontic Instrument Through Finite Element Analysis

[+] Author Affiliations
Rui He, Jun Ni

University of Michigan, Ann Arbor, MI

Charles J. Goodis

Advanced Endodontics, Albuquerque, NM

Paper No. MSEC2006-21052, pp. 413-421; 9 pages
  • ASME 2006 International Manufacturing Science and Engineering Conference
  • Manufacturing Science and Engineering, Parts A and B
  • Ypsilanti, Michigan, USA, October 8–11, 2006
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 0-7918-4762-4 | eISBN: 0-7918-3786-8
  • Copyright © 2006 by ASME


The mechanical behavior of a rotary nickel-titanium endodontic instrument was evaluated through finite element models. Essential geometric features of blank taper and variable pitch were modeled and their impact on the mechanical performance of instruments was investigated. Simulation results showed that better bending flexibility and higher torsional stiffness can both be obtained on an instrument with a large helix configuration. The results also illustrated that the finite element method can be used to compute the critical load or deformation for the instrument which prompts the sustainable use of the instrument in clinical practices.

Copyright © 2006 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In