Stainless steel manual and NiTi rotary instruments fracture rate in a post-graduate clinic in Endodontics

Authors

  • Warley Luciano Fonseca Tavares Cirurgião-dentista Author
  • Cristina Dorella Paulino Soutto Mayor Cirurgiã-dentista Author
  • Gabriela de Souza Gonçalves Cirurgiã-dentista Author
  • Ana Cecília Diniz Viana Universidade Federal de Minas Gerais Author
  • Luiz Carlos Feitosa Henriques Universidade Federal de Minas Gerais Author

DOI:

https://doi.org/10.7308/aodontol/2015.51.3.05

Keywords:

Instruments, Fracture, Endodontics

Abstract

Aim: This study aimed to perform a retrospective study and analyze the fracture rate of manual stainless steel and rotary NiTi files in endodontic treatments performed by students from a specialization course in Endodontics, correlating the fracture of the instruments to the phase of instrumentation.

Methods: The records of patients treated in the endodontics specialization courses at Instituto de Estudos da Saúde (IES) in Belo Horizonte, Brazil, were analyzed from May 2010 to November 2012.

Results: From the 501 analyzed records, in 18 cases fracture of instruments could be observed. From those, 10 (55.55%) were manual instruments and 8 (44.44%) were NiTi rotary instruments. From the total of manual fractured instruments, 7 occurred in the canal initial exploration phase. In only one stainless steel instrument was fracture observed in the canal shaping phase.

Conclusion: Low fracture levels were observed for both types of instruments, which were influenced by the instrumentation phase of the canals The NiTi rotary instruments showed a higher level of fracture when compared to stainless steel manual instruments in the root canal shaping phase.

References

Roane JB, Sabala CL, Duncanson MG. The “Balanced force” concept for instrumentation of curved canals. J Endod. 1965; 11:203-11.

Sotokawa T. An analysis of clinical breakage of root canal instruments. J Endod. 1988; 14(2):75- 82.

Thompson SA. An overview of nickel-titanium alloys used in dentistry. Int Endod J. 2000; 33(4):297-310.

Sattapan B, Nervo GJ, Palamara JEA, Messer HH. Defects in rotary nickel-titanium files after clinical use. J Endod. 2000; 26(3):161-5.

Bahia MGA, Buono VTL. Decrease in fatigue resistance of nickel-titanium rotary instruments after clinical use in curved root canals. Oral Surg, Oral Med, Oral Pathol, Oral Radiol Endod. 2005; 100(2):249-55.

Bahia MGA, Melo MCC, Buono VTL. Influence of simulated clinical use on the torsional behaviour of nickel-titanium rotary endodontic instruments. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006; 101(5):675-80.

Hulssman M, Schinkel I. Influence of several factors on the success or failure of removal of fractured instruments from the root canal. Endod DenTraumatol. 1999; 15(6):252– 8.

Spili P, Parashos P, Messer HH. The impact of instrument fracture on outcome of endodontic treatment. J Endod. 2005; 31(12):845–50.

Iqbal KM, Kohli RM, Kim SJ. A retrospective clinical study of incidence of root canal instrument separation in an endodontics graduate program: a PennEndo database study. J Endod. 2006; 32(11):1048 –52.

Tzanetakis NG, Kontakiotis GE, Maurikou DV, Marzelou MP. Prevalence and management of instrument fracture in the postgraduate Endodontic program at the Dental School of

Athens: A five-year retrospective clinical study. J Endod. 2008; 34(6):675–8.

Hulsmann M, Herbst U, Schafers F. Comparative study of root-canal preparation using Lightspeed and Quantec SC rotary NiTi instruments. Int Endod J. 2003; 36(11):748 –56.

Knowles KI, Hammond NB, Biggs SG, Ibarrola JL. Incidence of instrument separation using LightSpeed rotary instruments. J Endod. 2006; 32(1): 14–6.

Haikel Y, Gasser P, Allemann C. Dynamic Fracture of Hybrid Endodontic Hand Instruments Compared with Traditional Files. J Endod. 1991; 17(5):217-20.

Patiño PV, Biedma BM, Liébana CR, Cantatore G, Bahillo JG. The influence of a manual glide path on the separation rate of NiTi rotary instruments. J Endod. 2005; 31(2):114-6.

Nakagawa RK, Alves JL, Buono VT, Bahia MG. Flexibility and torsional behaviour of rotary nickel-titanium PathFile, RaCe ISO 10, Scout RaCe and stainless steel K-File hand instruments. Int Endod J. 2014; 47(3):290-7.

Schäfer E, Schulz-Bongert U, Tulus G. Comparison of hand stainless steel and nickel titanium rotary instrumentation: a clinical study. J Endod. 2004; 30(6): 432-5.

Lloyd, A. Root canal instrumentation with ProFile instruments. Endodontic Topics. 2005; 10(1) : 151-54.

Ajuz NC, Armada L, Gonçalves LS, Debelian G, Siqueira JF Jr. Glide path preparation in S-shaped canals with rotary pathfinding nickel-titanium instruments. J Endod. 2013; 39(4):534-7.

Alves VO, Bueno CE, Cunha RS, Pinheiro SL, Fontana CE, de Martin AS. Comparison among manual instruments and PathFile and Mtwo rotary instruments to create a glide path in the root canal preparation of curved canals. J Endod. 2012; 38(1):117-20.

D’Amario M, Baldi M, Petricca R, De Angelis F, El Abed RBDS, D’Arcangelo C. Evaluation of a new nickel-titanium system to create the glide path in root canal preparation of curved canals. J Endod. 2013; 39(12):1581-4.

Kerekes K, Tronstad L. Long-term results of endodontic treatment performed with a standardized technique. J Endod. 1979; 5(3):83– 90.

Sjogren U, Hagglund B, Sundqvist G, Wing K. Factors affecting the long-term results of endodontic treatment. J Endod. 1990; 16(10):498– 504.

Ruddle CJ. Broken instrument removal. The endodontic challenge. Dent Today. 2002; 2: 70-2.

Hilt BR, Cunningham CJ, Shen C, Richards

N. Torsional properties of stainless steel and nickel-titanium files after multiple autoclave sterilizations. J Endod. 2000; 26(2):76-80.

Schäfer E, Dzepina A, Danesh G. Bending properties of rotary nickel-titanium instruments. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003; 96(6): 757-63.

Melo MCC, Pereira ESJ, Viana ACD, Fonseca AMA, Buono VTL, Bahia MGA. Dimensional characterization and mechanical behaviour of K3 rotary instruments. Int Endod J. 2008; 41(4):329-38.

Parashos P, Gordon I, Messer H. Factors influencing defects of rotary nickel-titanium endodontic instruments after clinical use. J Endod. 2004; 30(10):722-5.

Mandel E, Adib-Yazdi M, Benhamou LM, Lachkar T, Mesgouez C, Sobel M. Rotary Ni-Ti profiles systems for preparing curved canals in resin blocks: influence of operator on instrument breakage. Int Endod J. 1999; 32(6):436-43.

Vieira EP, França EC, Martins RC, Buono VTL, Bahia MGA. Influence of multiple clinical use on fatigue resistance of ProTaper rotary nickel- titanium instruments. Int Endod J. 2008; 41(2): 163-72.

Gambarini G Cyclic fatigue of ProFile rotary instruments after prolonged clinical use. Int Endod J. 2001; 34(5):386-9.

Downloads

Published

2016-06-14

Issue

Vol. 51 No. 3 (2015)

Section

Artigos

How to Cite

Stainless steel manual and NiTi rotary instruments fracture rate in a post-graduate clinic in Endodontics. (2016). Arquivos Em Odontologia, 51(3). https://doi.org/10.7308/aodontol/2015.51.3.05

Most read articles by the same author(s)