Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
권호 표지
DOI QR코드

DOI QR Code

Comparison of cyclic fatigue life of nickel-titanium files: an examination using high-speed camera

  • Received : 2017.03.03
  • Accepted : 2017.07.05
  • Published : 2017.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

Objectives: To determine the actual revolutions per minute (rpm) values and compare the cyclic fatigue life of Reciproc (RPC, VDW GmbH), WaveOne (WO, Dentsply Maillefer), and TF Adaptive (TFA, Axis/SybronEndo) nickel-titanium (NiTi) file systems using high-speed camera. Materials and Methods: Twenty RPC R25 (25/0.08), 20 WO Primary (25/0.08), and 20 TFA ML 1 (25/0.08) files were employed in the present study. The cyclic fatigue tests were performed using a dynamic cyclic fatigue testing device, which has an artificial stainless steel canal with a $60^{\circ}$ angle of curvature and a 5-mm radius of curvature. The files were divided into 3 groups (group 1, RPC R25 [RPC]; group 2, WO Primary [WO]; group 3, TF Adaptive ML 1 [TFA]). All the instruments were rotated until fracture during the cyclic fatigue test and slow-motion videos were captured using high-speed camera. The number of cycles to failure (NCF) was calculated. The data were analyzed statistically using one-way analysis of variance (ANOVA, p < 0.05). Results: The slow-motion videos were indicated that rpm values of the RPC, WO, and TFA groups were 180, 210, and 425, respectively. RPC ($3,464.45{\pm}487.58$) and WO ($3,257.63{\pm}556.39$) groups had significantly longer cyclic fatigue life compared with TFA ($1,634.46{\pm}300.03$) group (p < 0.05). There was no significant difference in the mean length of the fractured fragments. Conclusions: Within the limitation of the present study, RPC and WO NiTi files showed significantly longer cyclic fatigue life than TFA NiTi file.

Keywords

References

  1. Parashos P, Messer HH. Rotary NiTi instrument fracture and its consequences. J Endod 2006;32:1031-1043. https://doi.org/10.1016/j.joen.2006.06.008
  2. Sattapan B, Nervo GJ, Palamara JE, Messer HH. Defects in rotary nickel-titanium files after clinical use. J Endod 2000;26:161-165. https://doi.org/10.1097/00004770-200003000-00008
  3. Wei X, Ling J, Jiang J, Huang X, Liu L. Modes of failure of ProTaper nickel-titanium rotary instruments after clinical use. J Endod 2007;33:276-279. https://doi.org/10.1016/j.joen.2006.10.012
  4. Thompson SA. An overview of nickel-titanium alloys used in dentistry. Int Endod J 2000;33:297-310. https://doi.org/10.1046/j.1365-2591.2000.00339.x
  5. Cheung GS. Instrument fracture: mechanisms, removal of fragments, and clinical outcomes. Endod Topics 2007;16:1-26. https://doi.org/10.1111/j.1601-1546.2009.00239.x
  6. Martin B, Zelada G, Varela P, Bahillo JG, Magan F, Ahn S, Rodriguez C. Factors influencing the fracture of nickel-titanium rotary instruments. Int Endod J 2003;36:262-266. https://doi.org/10.1046/j.1365-2591.2003.00630.x
  7. Pruett JP, Clement DJ, Carnes DL Jr. Cyclic fatigue testing of nickel-titanium endodontic instruments. J Endod 1997;23:77-85. https://doi.org/10.1016/S0099-2399(97)80250-6
  8. Yared GM, Bou Dagher FE, Machtou P. Cyclic fatigue of ProFile rotary instruments after clinical use. Int Endod J 2000;33:204-207. https://doi.org/10.1046/j.1365-2591.1999.00296.x
  9. Ferreira F, Adeodato C, Barbosa I, Aboud L, Scelza P, Zaccaro Scelza M. Movement kinematics and cyclic fatigue of NiTi rotary instruments: a systematic review. Int Endod J 2017;50:143-152. https://doi.org/10.1111/iej.12613
  10. Yared G. Canal preparation using only one Ni-Ti rotary instrument: preliminary observations. Int Endod J 2008;41:339-344. https://doi.org/10.1111/j.1365-2591.2007.01351.x
  11. Ahn SY, Kim HC, Kim E. Kinematic effects of nickel-titanium instruments with reciprocating or continuous rotation motion: a systematic review of in vitro studies. J Endod 2016;42:1009-1017. https://doi.org/10.1016/j.joen.2016.04.002
  12. You SY, Bae KS, Baek SH, Kum KY, Shon WJ, Lee W. Lifespan of one nickel-titanium rotary file with reciprocating motion in curved root canals. J Endod 2010;36:1991-1994. https://doi.org/10.1016/j.joen.2010.08.040
  13. Pedulla E, Grande NM, Plotino G, Gambarini G, Rapisarda E. Influence of continuous or reciprocating motion on cyclic fatigue resistance of 4 different nickel-titanium rotary instruments. J Endod 2013;39:258-261. https://doi.org/10.1016/j.joen.2012.10.025
  14. Kerr Corporation (US). $TF^{TM}$ Adaptive. Available from: https://www.kerrdental.com/kerr-endodontics/tf-adaptive-niti-endo-file-system#docs (updated 2017 Jan 1).
  15. Ozyurek T, Yilmaz K, Uslu G. Effect of adaptive motion on cyclic fatigue resistance of a nickel titanium instrument designed for retreatment. Restor Dent Endod 2017;42:34-38. https://doi.org/10.5395/rde.2017.42.1.34
  16. Keskin B, Ozyurek T, Furuncuoglu F, Inan U. The effects of adaptive motion on cyclic fatigue resistance of twisted files. J Dent Appl 2016;3:337-339.
  17. Gambarini G, Rubini AG, Al Sudani D, Gergi R, Culla A, De Angelis F, Di Carlo S, Pompa G, Osta N, Testarelli L. Influence of different angles of reciprocation on the cyclic fatigue of nickel-titanium endodontic instruments. J Endod 2012;38:1408-1411. https://doi.org/10.1016/j.joen.2012.05.019
  18. Shin CS, Huang YH, Chi CW, Lin CP. Fatigue life enhancement of NiTi rotary endodontic instruments by progressive reciprocating operation. Int Endod J 2014;47:882-888. https://doi.org/10.1111/iej.12233
  19. Arslan H, Alsancak M, Doganay E, Karatas E, Davut Capar I, Ertas H. Cyclic fatigue analysis of Reciproc R25(R) instruments with different kinematics. Aust Endod J 2016;42:22-24. https://doi.org/10.1111/aej.12115
  20. Plotino G, Grande NM, Testarelli L, Gambarini G. Cyclic fatigue of Reciproc and WaveOne reciprocating instruments. Int Endod J 2012;45:614-618. https://doi.org/10.1111/j.1365-2591.2012.02015.x
  21. da Frota MF, Espir CG, Berbert FL, Marques AA, Sponchiado-Junior EC, Tanomaru-Filho M, Garcia LF, Bonetti-Filho I. Comparison of cyclic fatigue and torsional resistance in reciprocating single-file systems and continuous rotary instrumentation systems. J Oral Sci 2014;56:269-275. https://doi.org/10.2334/josnusd.56.269
  22. Scelza P, Harry D, Silva LE, Barbosa IB, Scelza MZ. A comparison of two reciprocating instruments using bending stress and cyclic fatigue tests. Braz Oral Res 2015;29:1-7.
  23. De-Deus G, Leal Vieira VT, Nogueira da Silva EJ, Lopes H, Elias CN, Moreira EJ. Bending resistance and dynamic and static cyclic fatigue life of Reciproc and WaveOne large instruments. J Endod 2014;40:575-579. https://doi.org/10.1016/j.joen.2013.10.013
  24. Higuera O, Plotino G, Tocci L, Carrillo G, Gambarini G, Jaramillo DE. Cyclic fatigue resistance of 3 different nickel-titanium reciprocating instruments in artificial canals. J Endod 2015;41:913-915. https://doi.org/10.1016/j.joen.2015.01.023

Cited by

  1. Cyclic fatigue resistance of HyFlex EDM, Reciproc Blue, WaveOne Gold, and Twisted File Adaptive rotary files under different temperatures and ambient conditions vol.13, pp.3, 2017, https://doi.org/10.15171/joddd.2019.026
  2. Effect of autoclave sterilization on cyclic fatigue and torsional fracture resistance of NiTi rotary instruments vol.108, pp.2, 2017, https://doi.org/10.1007/s10266-019-00453-3