ArticleMaterials (Basel, Switzerland)2021
Role of the Crystallographic Phase of NiTi Rotary Instruments in Determining Their Torsional Resistance during Different Bending Conditions.
Article in Materials (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 27 citations in OpenAlex.
- Influence of Thermal Pretreatments on the Cyclic Fatigue Resistance of Novel Reciprocating Nickel-Titanium Files: A Comparison of Low- and High-Temperature Modified Systems.European endodontic journal · 2025Article
- Shaping ability of WaveOne Gold, hyflexEDM, trunatomy NiTi files: a micro-CT study.BMC oral health · 2025Article
- Influence of the rotation angles on the mechanical behavior of the one reci instrument.BDJ open · 2025Article
- The Efficiency of the BTR-Pen System in Removing Different Types of Broken Instruments from Root Canals and Its Effect on the Fracture Resistance of Roots.Materials (Basel, Switzerland) · 2022Article
- Mechanical and Metallurgical Evaluation of 3 Different Nickel-Titanium Rotary Instruments: An In Vitro and In Laboratory Study.Bioengineering (Basel, Switzerland) · 2022Article
- Future Trends in Endodontics: How Could Materials Increase the Long-Term Outcome of Root Canal Therapies?Materials (Basel, Switzerland) · 2022Article
- Nickel-Titanium Rotary Instruments: Mechanical and Metallurgical Characteristics.Clinics and practice · 2022Article
- Metallurgical Tests in Endodontics: A Narrative Review.Bioengineering (Basel, Switzerland) · 2022Review
- Three-Rooted Permanent Mandibular First Molars: A Meta-Analysis of Prevalence.International journal of dentistry · 2022Review
- The Ergonomic Knowledge and Practice of Dental Students in a Tertiary Institution in South Africa.International journal of dentistry · 2022Article
- Modern Approaches and Innovations on Methods and Imaging Protocols of the Maxillofacial District.Methods and protocols · 2021Article
- An Update on Nickel-Titanium Rotary Instruments in Endodontics: Mechanical Characteristics, Testing and Future Perspective-An Overview.Bioengineering (Basel, Switzerland) · 2021Review
- Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to assess the role of the crystallographic phase of Nickel-titanium (NiTi) rotary instruments in determining their torsional resistance during different bending conditions, such as different degrees and angles of curvature. 200 F-One 20.04 instruments (Fanta Dental, Shanghai, China) were used, 100 austenitic instruments and 100 martensitic instruments. Each group was divided in 5 subgroups according to the different bending conditions (straight canal, 90° or 60° of curvature degrees and 3 mm or 5 mm of radius of curvature). The static torsional test was performed by using a device composed of an electric motor capable of recording torque values (N·cm); a vice used to secure the instruments at 3 mm from the tip; and artificial canals, which allow instruments to remain flexed during test. Each instrument was rotated at 500 rpm with a torque limit set to 5.5 Ncm until its fracture. Torque at Fracture (TtF) was registered. A scanning electron microscopy (SEM) observation was conducted. The collected data confirm that an increase in the angle of curvature and a decrease in the radius of curvature of the artificial canals lead to an increase of TtF values with a statistically significant difference (
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