Journal of Endodontics
Volume 36, Issue 1 , Pages 147-152 , January 2010

Cyclic Fatigue and Fracture Characteristics of Ground and Twisted Nickel-Titanium Rotary Files

  • Hyeon-Cheol Kim, DDS, MS, PhD

      Affiliations

    • Department of Conservative Dentistry, School of Dentistry, Pusan National University, Busan, Korea
    • ,
  • Jiwan Yum, DDS, MS

      Affiliations

    • Department of Conservative Dentistry, School of Dentistry, Pusan National University, Busan, Korea
    • ,
  • Bock Hur, DDS, MS, PhD

      Affiliations

    • Department of Conservative Dentistry, School of Dentistry, Pusan National University, Busan, Korea
    • ,
  • Gary Shun-Pan Cheung, MDS, MSc, PhD

      Affiliations

    • Area of Endodontics, Faculty of Dentistry, University of Hong Kong, Hong Kong SAR, China
    • Corresponding Author InformationAddress requests for reprints to Gary Shun-Pan Cheung, MDS, MSc, PhD, Area of Endodontics, Faculty of Dentistry, 3/F, Prince Philip Dental Hospital, 34 Hospital Road, Saiyingpun, Hong Kong.

References 

  1. Walia HM, Brantley WA, Gerstein H. An initial investigation of the bending and torsional properties of Nitinol root canal files. J Endod. 1988;14:346–351
  2. Schäfer E, Schulz-Bongert U, Tulus G. Comparison of hand stainless steel and nickel titanium rotary instrumentation: a clinical study. J Endod. 2004;30:432–435
  3. Chen JL, Messer HH. A comparison of stainless steel hand and rotary nickel-titanium instrumentation using a silicone impression technique. Aust Dent J. 2002;47:12–20
  4. Garip Y, Gunday M. The use of computed tomography when comparing nickel titanium and stainless steel files during preparation of simulated curved canals. Int Endod J. 2001;34:452–457
  5. Schäfer E. Shaping ability of Hero 642 rotary nickel-titanium instruments and stainless steel hand K-Flexofiles in simulated curved root canals. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2001;92:215–220
  6. Arens FC, Hoen MM, Steiman HR, Dietz GC. Evaluation of single-use rotary nickel–titanium instruments. J Endod. 2003;29:664–666
  7. Pruett JP, Clement DJ, Carnes DL. Cyclic fatigue testing of nickel-titanium endodontic instruments. J Endod. 1997;23:77–85
  8. Sattapan B, Nervo GJ, Palamara JE, Messer HH. Defects in rotary nickel-titanium files after clinical use. J Endod. 2000;26:161–165
  9. Shen Y, Cheung GS, Bian Z, Peng B. Comparison of defects in ProFile and ProTaper systems after clinical use. J Endod. 2006;32:61–65
  10. Tripi TR, Bonaccorso A, Condorelli GG. Cyclic fatigue of different nickel-titanium endodontic rotary instruments. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006;102:e106–e114
  11. Hata G, Uemura M, Kato AS, Imura N, Novo NF, Toda T. A comparison of shaping ability using ProFile, GT file, and Flex-R endodontic instruments in simulated canals. J Endod. 2002;28:316–321
  12. Ankrum MT, Hartwell GR, Truitt JE. K3 Endo, ProTaper, and ProFile systems: breakage and distortion in severely curved root of molars. J Endod. 2004;30:234–237
  13. Cheung GSP. Instrument fracture: mechanisms, removal of fragments, and clinical outcomes. Endod Topics. 2009;16:1–26
  14. Kim HC, Cheung GS, Lee CJ, Kim BM, Park JK, Kang SI. 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. J Endod. 2008;34:743–747
  15. Gambarini G, Grande NM, Plotino G, et al. Fatigue resistance of engine-driven rotary nickel-titanium instruments produced by new manufacturing methods. J Endod. 2008;34:1003–1005
  16. Larsen CM, Watanabe I, Glickman GN, He J. Cyclic fatigue analysis of a new generation of nickel titanium rotary instruments. J Endod. 2009;35:401–403
  17. Gambarini G. Cyclic fatigue of nickel-titanium rotary instruments after clinical use with low- and high-torque endodontic motors. J Endod. 2001;27:772–774
  18. Kuhn G, Tavernier B, Jordan L. Influence of structure on nickel-titanium endodontic instruments failure. J Endod. 2001;27:516–520
  19. Xu X, Eng M, Zheng Y, Eng D. Comparative study of torsional and bending properties for six models of nickel-titanium root canal instruments with different cross-sections. J Endod. 2006;32:372–375
  20. Yao JH, Schwartz SA, Beeson TJ. Cyclic fatigue of three types of rotary nickel-titanium files in a dynamic model. J Endod. 2006;32:55–57
  21. Kim HC, Kim HJ, Lee CJ, Kim BM, Park JK, Versluis A. Mechanical response of nickel-titanium instruments with different cross-sectional designs during shaping of simulated curved canals. Int Endod J. 2009;42:593–602
  22. Peters OA, Peters CI. Cleaning and shaping of the root canal system. In:  Cohen S,  Hargreaves KM editor. Pathways of the pulp. 9th ed. St Louis: CV Mosby; 2006;p. 290–357
  23. Tripi TR, Bonaccorso A, Tripi V, Condorelli GG, Rapisarda E. Defects in GT rotary instruments after use: an SEM study. J Endod. 2001;27:782–785
  24. Martins RC, Bahia MG, Buono VT. Surface analysis of ProFile instruments by scanning election microscopy and X-ray energy dispersive spectroscopy: a preliminary study. Int Endod J. 2002;35:848–853
  25. Cheung GSP, Peng B, Bian Z, Shen Y, Darvell BW. Defects in ProTaper S1 instruments after clinical use: fractographic examination. Int Endod J. 2005;38:802–809
  26. Bahia MG, Melo MC, Buono VT. Influence of simulated clinical use on the torsional behavior of nickel-titanium rotary endodontic instruments. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006;101:675–680
  27. Tripi TR, Bonaccorso A, Condorelli GG. Cyclic fatigue of different nickel-titanium endodontic rotary instruments. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006;102:e106–e114
  28. Schijve J. Fatigue of structures and materials. Dordrecht, The Netherlands: Kluwer Academic; 2001;1–507
  29. Kuhn G, Jordan L. Fatigue and mechanical properties of nickel-titanium endodontic instruments. J Endod. 2002;28:716–720
  30. Cheung GS, Darvell BW. Fatigue testing of a NiTi rotary instrument: part 2—fractographic analysis. Int Endod J. 2007;40:619–625
  31. Sachs NW. Understanding the surface features of fatigue fractures: how they describe the failure cause and the failure history. J Fail Anal Prev. 2005;5:11–15
  32. Kim TO, Cheung GSP, Lee JM, Kim BM, Hur B, Kim HC. Stress distribution of three NiTi rotary files under bending and torsional conditions using a mathematic analysis. Int Endod J. 2009;42:14–21
  33. Alapati SB, Brantley WA, Svec TA, Powers JM, Nusstein JM, Daehn GS. SEM observations of nickel-titanium rotary endodontic instruments that fractured during clinical use. J Endod. 2005;31:40–43
  34. Alapati SB, Brantley WA, Svec TA, Powers JM, Mitchell J. Scanning electron microscope observation of new and used nickel-titanium rotary files. J Endod. 2003;29:667–669
  35. Cheung GS, Shen Y, Darvell BW. Does electropolishing improve the low-cycle fatigue behavior of a nickel-titanium rotary instrument in hypochlorite?. J Endod. 2007;33:1217–1221
  36. Miao W, Mi X, Zhu M, Guo J, Kou Y. Effect of surface preparation on mechanical properties of a NiTi alloy. Mater Sci Forum. 2002;394-395:173–176
  37. Rapisarda E, Bonaccorso A, Tripi TR, Fragalk I, Condorelli GG. The effect of surface treatments of nickel titanium files on wear and cutting efficiency. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2000;89:363–368
  38. Herold KS, Johnson BR, Wenckus CS. A scanning electron microscopy evaluation of microfractures, deformation and separation in EndoSequence and Profile nickel titanium rotary files using an extracted molar tooth model. J Endod. 2007;33:712–714
  39. Shaw MC. Surface integrity. In:  Crookall JR,  Shaw MC,  Suh NP editor. Metal cutting principles. 2nd ed. New York: Oxford University Press; 2005;p. 472–478
  40. Liu Y, Van Humbeeck J, Stalmans R, Delaey L. Some aspects of the properties of NiTi shape memory alloy. J Alloys Compounds. 1997;247:115–121
  41. McEvily AJ. Metal failures: mechanisms, analysis, prevention. New York: John Wiley & Sons; 2002;
  42. Hutchings MT, Withers PJ, Holder TM, Lorentzen T. Introduction to the characterization of residual stress by neutron diffraction. Boca Raton, FL: Taylor & Francis Group; 2005;
  43. Su Y-Y, Raman V. The quest for Nitinol wire surface quality for medical applications. In: SMST-97: Proceedings of the Second International Conference on Shape Memory and Superelastic Technologies, 1997:389–94.
  44. TF: The Twisted File brochure. Orange, CA: SybronEndo; 2008;
  45. Miyai K, Ebihara A, Hayashi Y, Doi H, Suda H, Yoneyama T. Influence of phase transformation on the torsional and bending properties of nickel-titanium rotary endodontic instruments. Int Endod J. 2006;39:119–126
  46. Hayashi Y, Yoneyama T, Yahata Y, et al. Phase transformation behaviour and bending properties of hybrid nickel-titanium rotary endodontic instruments. Int Endod J. 2007;40:247–253

PII: S0099-2399(09)00824-3

doi: 10.1016/j.joen.2009.09.037

Journal of Endodontics
Volume 36, Issue 1 , Pages 147-152 , January 2010

Article Tools

* Image Usage & Resolution