Comparative Study of Cutting Capacity and Wear in 3 Commercial Brands of Ni-Ti Manual Endodontic Files
João Marcelo Ferreira de Medeiros1*, Ana Paula Barbosa da Rocha Souza2, Fernando Koibuchi Sakane3, Luiz Carlos Laureano da Rosa4, Pedro Luiz de Carvalho5, Ana Paula Rossefini Alves Claro6 and Irineu Gregnanin Pedron7
1Professor, Department of Endodontics, School of Dentistry, Universidade Brasil, São Paulo, Brazil
2Undergraduate Student, School of Dentistry, Universidade Brasil, São Paulo, Brazil
3Professor and Coordinator, School of Dentistry, Unieuro, Brasília, Brazil
4Professor, Statistics and Quantitative Methods Department, National Post-Graduate Institute, Technological Institute of Aeronautics, São José dos Campos, Brazil
5Professor, Department of Propaedeutics Dental, Universidade Federal do Pará, Belém, Brazil
6Professor, Department of Materials and Technology, School of Engineering, Universidade Estadual de São Paulo, Guaratinguetá, Brazil
7Professor, Department of Periodontology, Implantology, Stomatology, Therapeutic and Laser, School of Dentistry, Universidade Brasil, São Paulo, Brazil
*Corresponding Author: João Marcelo Ferreira de Medeiros, Professor, Department of Endodontics, School of Dentistry, Universidade Brasil, São Paulo, Brazil.
Received: October 13, 2022 Published: October 27, 2022
Abstract
The purpose of this article was to compare the cutting capacity and wear of manual nickel titanium endodontic files. For this objective, ten nickel-titanium instruments from the brands Dentsply-MailefferTM, FKGTM and DensellTM were used, all numbered thirty-five. The files were attached to a wear testing device that performed continuous and linear movements on grooved plates based on phenolic resin. These plates were weighed on an analytical balance before and after instrumentation. Analyzes by optical microscopy of the endodontic files were also carried out in order to verify the wear on the surface of the instruments. Due to the characteristics of the data, in the statistical analysis, Student's “t” test and ANOVA test: one criterion, Tukey's test were used. It was concluded that the instruments presented similar cutting capacities without significant statistical differences. As for the wear of the instruments, it was verified that the cutting blades of the DensellTM brand deformed less compared to the instruments of the Dentsply-MailefferTM and FKGTM brands. However, between the latter two, there was no statistically significant difference.
Keywords: Endodontics; Nickel-Titanium; Root canal therapy; Microscopy
Citation: de Medeiros JMF, da Rocha Souza APB, Sakane FK, da Rosa LCL, de Carvalho PL, Alves Claro APR, Pedron IG. “Comparative Study of Cutting Capacity and Wear in 3 Commercial Brands of Ni-Ti Manual Endodontic Files”. SVOA Dentistry 2022, 3:5, 235-242.
