Evaluation of torsional fracture resistance of TF Adaptive and Hyflex CM systems

Authors

DOI:

https://doi.org/10.33448/rsd-v10i14.21604

Keywords:

Endodontics; Torsion abnormality; Fracture resistance.

Abstract

The present study had as objective to evaluate the resistance to torsion fracture of two instrumentation systems based on different motion cinematics: alternating movement of the system TF Adaptive and the rotary movement of the system HYFLEX CM. For this 15 TF Adaptive instruments were used  to 27 mm in length, with the following dimensions: 20/.04, 25/.06, 35/04 and 30 Hyflex CM instruments to 25 mm in length, with the following dimensions: 25/.08, 20/.04, 25/04, 20/.06 , 30/.04 and 40/.04. The instruments were evaluated prior to your use and after two, four, six and eight use in simulated acrylic resin canals. These canals were standardized and their curvature was 35 degrees and their final length 18 mm, being this point reached at the end of the instrumentation in both systems. The variable in question was measured in degrees until the time of instrument fracture, obtained through a modified Troptômetro. The values registered at the time of fracture, for each instrument, were submitted to statistical analysis using the Wilcoxon test, Mann-Whitney U Test for comparison between the two systems of instrumentation (p ≥ 0.05). The results showed that both instruments did not show differences when evaluated without any use, after two uses, four uses, six uses and finally eight uses (p ≥ 0.05). It was concluded that TF Adaptive systems and Hyflex CM showed similarity as resistance to torsion fracture.

Author Biographies

Rodrigo Zuccolotto Ferraz Caselli, Faculdade São Leopoldo Mandic

Mestre em Endodontia / Faculdade São Leopoldo Mandic, Campinas/ SP

Cesar Augusto Perini Rosas, Universidade Estadual do Norte do Paraná

Mestre em Endodontia e Doutorando em Clínicas Odontológicas pela Faculdade São Leopoldo Mandic/ Campinas/ SP.

Ana Grasiela Limoeiro, Faculdade de Ilhéus

Especialista, Mestre e Doutora em Endodontia/ Faculdade São Leopoldo Mandic/ Campinas/ SP.

Rina Andrea Pelegrine, Faculdade São Leopoldo Mandic

Especialista, Mestre, Doutor em Endodontia/ Faculdade São Leopoldo Mandic/ Campinas/ SP

Carlos Eduardo Fontana, Pontifical Catholic University of Campinas

Especialista, Mestre e Doutor em Endodontia / Faculdade São Leopoldo Mandic/ Campinas/SP.

Emílio Henrique Rocha Gonçalves Ferreira, Faculdade São Leopoldo Mandic

Mestre e Doutorando em Endodontia pela Faculdade São Leopoldo Mandic/ Campinas/SP.

Carlos Eduardo da Silveira Bueno, Faculdade São Leopoldo Mandic

Mestre, Doutor em Endodontia pela Universidade Estadual de Campinas/SP;

Professor Titular da Universidade Católica de Campinas/SP e da Faculdade São Leopoldo Mandic, Campinas/SP.

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Published

24/10/2021

How to Cite

CASELLI, R. Z. F.; ROSAS, C. A. P.; LIMOEIRO, A. G. .; PELEGRINE, R. A. .; FONTANA, C. E.; FERREIRA, E. H. R. G.; FRANÇA, R. C. .; SANTOS, M. dos .; BUENO, C. E. da S. Evaluation of torsional fracture resistance of TF Adaptive and Hyflex CM systems. Research, Society and Development, [S. l.], v. 10, n. 14, p. e28101421604, 2021. DOI: 10.33448/rsd-v10i14.21604. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/21604. Acesso em: 14 jul. 2024.

Issue

Section

Health Sciences