Comparative of resistance to fatigue cyclic two rotary instruments of Nickel-Titanium
DOI:
https://doi.org/10.33448/rsd-v13i8.46439Keywords:
Endodontic; Dental instruments; Nickel; Titanium; Root canal preparation; Fatigue; Flexural strength; Torsional fractures.Abstract
The purpose of this study was to analyze in vitro the cyclic fatigue resistance of two different rotary systems, ProFile Vortex® (Dentsply Tulsa Dental, USA) and ProTaper® (Dentsply Maillefer, Switzerland), considering the number of cycles, time and size of the fractured portion of the instruments used in curved steel root canals in a device. Forty instruments were divided into two groups. Group A: twenty ProFile Vortex® instruments No. 25; 25mm; taper .06 and Group B: twenty ProTaper® F1 instruments; 25mm. After the instrument cleaning process, the cyclic fatigue resistance was evaluated by subjecting all instruments to dynamic testing in a device developed until the occurrence of visually detected fracture. The number of cycles until fracture, time expressed in seconds and the size of the fractured portion were recorded and descriptive statistics, Student's t-test and the Mann-Whitney U test were performed. Profile Vortex® instruments showed higher cyclic fatigue resistance, time and size of the fractured portion of the instruments with statistical significance (P value <0.05) compared to Protaper® instruments. It was concluded that Profile Vortex® instruments completed a greater number of cycles and took longer to fracture compared to ProTaper® instruments. The fractured portion of the instrument in millimeters was greater for Profile Vortex® files.
References
Abdellatif, D., Iandolo, A., Scorziello, M., Sangiovanni, G. & Pisano, M. (2024). Cyclic fatigue of different Ni-Ti endodontic rotary file alloys: A comprehensive review. Bioengineering (Basel), 16;11(5), 499.
Al-Sudani, D., Grande, N. M., Plotino, G., Pompa, G., Di Carlo, S., Testarelli, L, & Gambarini, G. (2012). Cyclic fatigue of nickel-titanium rotary instruments in a double (S-shape) simulated curvature. J Endod, 38(7), 987-989.
Assaf, D., El Seoud, M. A., Kataia, M. & Saber S. (2024). Impact of angle of file access and location of canal curvature on the dynamic cyclic fatigue of nickel titanium rotary instruments. Eur Endod J, 9(2), 133-138.
Bardsley, S. (2011). The Effect of Three Rotational Speed Settings on Torque and apical Force with Vortex Rotary Instruments In Vitro. J Endod, 37(6), 860–864.
Bouska, J., Justman, B., Williamson, A., Delong, C. & Qian, F. (2012). Resistance to Cyclic Fatigue Failure of a New Endodontic Rotary File. J Endod, 38(5), 667–669.
Braga, L. C. M., Faria Silva, A. C., Buono, V. T. L. & Bahia M. G. A. (2014). Impact of heat treatments on the fatigue resistance of different rotary nickel-titanium instruments. J Endod, 40(9), 1494-7.
Chhabra, A., Ramya, K. P., Prathap, B. S. & Yadav, P. (2023). Life span of Neoendo Flex and ProTaper Next rotary files with reciprocating motion in single-rooted teeth. J Conserv Dent, 26(4), 420-423.
Dalcastagner, A. (2022). Várias gerações de sistema ProTaper®- Revisão narrativa. [Dissertação Mestrado]. Porto: Universidade Fernando Pessoa: Faculdade de Ciências da Saúde.
Dentsply Sirona. (2022, May). Protaper Ultimate File System. https://www.endoruddle.com/PTUltimate.
Diaconu, C. T., Diaconu, A. E., Tuculina, M. J., Mihai, L. L., Gheorghiță, M., Gheorghiță, L. M., Mărășescu, P., Gliga, A. & Diaconu, O. A. (2024). Assessment of the cyclic fatigue performance of the novel Protaper Ultimate File System used in different kinematics: An in vitro study. J Funct Biomater, 28;15(4), 85.
Endo Star E3AzurHT Techneology, 2024. https://www.endostar.eu/wp-content/uploads/2022/02/IFU-Endostar-E3-Azure_EN_v3_2.2022.pdf
Gambarini, G., Gerosa, R., De Luca, M., Garala, M. & Testarell, L. (2008). Mechanical properties of a new and improved nickel-titanium alloy for endodontic use: an evaluation of file flexibility. Oral Sur, Oral Med, Oral Pathol, Oral Radiol and Endod, .;05(6), 798-800.
Gao, Y., Gutmann, J. L., Wilkinson, K., Mawell, R. & Ammon, D. (2012). Evaluation of the Impact of Raw Materials on the Fatigue and Mechanical Properties of ProFile Vortex Rotary Instruments. J Endod, 38(3), 398–401.
Gao, Y., Shotton, V., Wilkinson, K., Phillips, G. & Johnson, W. B. (2010). Effects of Raw Material and Rotational Speed on the Cyclic Fatigue of ProFile Vortex Rotary Instruments. J Endod, 36(7), 1205–1209.
Gavini, G. (2006). Resistência à fadiga cíclica de instrumentos rotatórios de NiTi submetidos à implantação de íons nitrogênio. [Tese de Doutorado]. São Paulo: Universidade de São Paulo: Faculdade de Odontologia.
Grande, N. M., Castagnola, R., Minciacchi, I., Marigo, L. & Plotino, G. (2023). A review of the latest developments in rotary NiTi technology and root canal preparation. Aust Dent J, 68 Suppl 1:S24-S38.
Hamid, T., Malik, A., Kumar, A. & Anjum, S. (2024). Comparative evaluation of cyclic fatigue resistance of thermomechanically treated NiTi rotary instruments in simulated curved canals with two different radii of curvature: An in vitro study. J Conserv Dent Endod, 27(4), 393-399.
Johnson, E., Lloyd, A, & Kuttler, S. (2008). Comparison between a novel nickel-titanium alloy and 508 nitinol on the cyclic fatigue life of ProFile 25/.04 rotary instruments. J Endod, 34(11), 1406–9.
Kell, T., Azarpazboob, A., Peters, O. A., El-Mowafy O., Tompson, B. & Basrani, B. (2009). Torsional profiles of new and used 20/.06 GT series X and GT rotary endodontic instruments. J Endod, 35(9), 1278-1281.
Lopes, W. S. P. (2013). Comparação da flexibilidade, resistência à fratura por flexão rotativa e por torção dos instrumentos de níquel titânio Race, Twisted File e Profile Vortex. Tese [Tese de doutorado]. Rio de Janeiro: Universidade Estácio de Sá, Faculdade de Odontologia.
MicroMega One Curve, the Endo DNA 2024. https://micro-mega.com/shaping/one-curve/?lang=en
Orikam Healthcare India Pvt. Ltd. 2024. https://orikamhealthcare.com/product/neoendo-flex-glide-files/
Pereira, É. S., Viana, A. C., Buono, V. T. L., Peters, O. A. & Bahia, M. G. A. (2015). Behavior of nickel-titanium instruments manufactured with different thermal treatments. J Endod, 41(1), 67-71.
Pereira, E. S. J., Peixoto, I. F. C., Viana, A. C. D., Oliveira, I. I., Gonzalez, B. M., Buono, V. T. L. & Bahia, M. G. A. (2012). Physical and mechanical properties of a thermomechanical treated NiTi wire used in the manufacture of rotary endodontic instruments. Int Endod J, 45(5), 469-474.
Peters, A. O. & Peters, C. I. (2011). Cleaning and saaping of the root canal system. In: Hargeaves, K.M. & Cohen, S. eds. Pathways of the Pulp. 10th ed. St. Louis, MO: Mosby Elsevier, 288-348.
ProTaper Next® PT-BR Dentsply Sirona 2024. https://bulario.dentsplysirona.com.br/P/Lima-PTNext.pdf
Shim, K. S., Oh, S., Kum, K., Kim, Y. C., Jee, K. K. & Chang, S. W. (2017). Mechanical and Metallurgical Properties of Various Nickel-Titanium Rotary Instruments. Biomed Res Int, 4528601.
Silva, E. J. N. L., Martins, J. N. R., Lima, C. O., Vieira, V. T. L., Braz Fernandes, F. M., De-Deus, G. & Versiani, M. A. (2020). Mechanical Tests, Metallurgical Characterization, and Shaping Ability of Nickel-Titanium Rotary Instruments: A Multimethod Research. J Endod, 46(10), 1485-1494.
Spanaki-Voreadi, A. P., Kerezousdis, N. P. & Zinelis, S. (2008). Failure mechanism of ProTaper Niti rotary instruments during clinical use: fractographic analysis. Int Endod J, 39(1), 171-8.
Topçuoğlu, H. S., Topçuoğlu, G., Kafdağ, Ö. & Balkaya H. (2020). Effect of two different temperatures on resistance to cyclic fatigue of one Curve, EdgeFile, HyFlex CM and ProTaper next files. Aust Endod J, 46(1), 68-72.
Varela-Patiño P., Ibañez-Párraga A., Rivas-Mundiña, B., Cantatore, G., Otero, X. L. & Martin-Biedma, B. (2010). Alternating versus continuous rotation: a comparative study of the effect on instrument life. J Endod, 36(1), 157-9.
Wei, X. Ling,, J., Jiang, J., Huang, X. & Liu, L. (2007). Modes of failure of ProTaper nickel-titanium rotary instruments after clinical use. J Endod, 33(3), 276-79.
Zupanc, J., Vahdat-Pajouh, N. & Schäfer, E. (2018). New thermomechanically treated NiTi alloys - a review. Int Endod J, 51(10), 1088-1103.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2024 João Marcelo Ferreira de Medeiros; Caleb Shitsuka; José Lucas Martins; Pedro Luiz Carvalho; Miguel Simão Haddad Filho; Graziela Salum
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
1) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.