In Vitro Evaluation of a Recently Developed Rotary File: AF Rotary

Authors

DOI:

https://doi.org/10.14295/bds.2021.v24i4.2558

Abstract

Objective: Aim of the present study is to evaluate mechanical properties of a newly developed rotary file, AF Rotary (Fanta Dental, Shanghai, China), and to compare these features with a worldwide spread rotary file, Protaper Gold F2 (PTG F2; Dentsply Maillefer, Ballaigues, Switzerland). Material and Methods: 60 AF Rotary 25.06 and 60 PTG F2 were divided in three groups of 20 files each. A group underwent to cyclic fatigue resistance tests, second group underwent to torsional resistance tests, third group underwent to bending tests. The statistical analysis was performed using t student test with significance level set at 95% (p < 0.05). Results: AF Rotary showed significantly higher torsional resistance and cyclic fatigue resistance (p < 0.05) when compared to the PTG F2. AF Rotary also showed significantly lower bending resistance (p < 0.05) when compared to the PTG F2. Conclusion: Therefore, within the limitations of this study, the results show better performances for AF Rotary compared to PTG F2 regarding the cyclic fatigue test, the torsional test and the bending test. Since the PTG F2 is a commonly used and widely investigated instrument it could be possible to state that the AF Rotary exhibits remarkable in vitro performances.

 

Keywords

AF Rotary; Protaper gold; NiTi rotary instruments; Cyclic fatigue; Torsional resistance.

Author Biographies

Marco Seracchiani, Sapienza University of Rome, Rome, Italy

Department of Oral and Maxillofacial Sciences

Orlando Donfrancesco, Sapienza University of Rome,

Department of Oral and Maxillo facial sciences, Rome, Italy.

Department of Anatomy, Histology, Forensic Medicine and Orthopedics, Rome, Italy.

Michela Relucenti , Sapienza University of Rome, Rome, Italy

Department of Anatomy, Histology, Forensic Medicine and Orthopedics, Rome, Italy

Rodolfo Reda, Sapienza University of Rome, Rome, Italy

Department of Oral and Maxillo facial sciences, Rome, Italy.

Alessio Zanza, Sapienza University of Rome, Rome, Italy

Department of Oral and Maxillo facial sciences, Rome, Italy.

Gianluca Gambarini, Sapienza University of Rome, Rome, Italy

Department of Oral and Maxillo facial sciences, Rome, Italy.

Luca Testarelli, Sapienza University of Rome, Rome, Italy

Department of Oral and Maxillo facial sciences, Rome, Italy.

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Published

2021-10-01

Issue

Vol. 24 No. 4 (2021): Oct - Dec / 2021 - published Oct 2021

Section

Clinical or Laboratorial Research

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