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New Challenges in the Instrumentation of the Root Canal System

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Dentistry and Oral Sciences".

Deadline for manuscript submissions: closed (20 May 2023) | Viewed by 1497

Special Issue Editor


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Guest Editor
Department of Surgery, Faculty of Medicine, Dental Clinic, University of Salamanca, Miguel de Unamuno Campus, 37007 Salamanca, Spain
Interests: root canal treatment; cone beam computed tomography; dental prostheses; dental implants; orthodontics, digital dentistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The latest advances applied to the design and manufacturing procedures of NiTi alloy endodontic files, based on novel metallurgical procedures and alloying elements capable of inducing changes on the microcrystalline structure of endodontic instruments, have their mechanical properties increasing the cutting efficiency and improving the cyclic fatigue resistance mechanical of NiTi alloy endodontic rotary and reciprocating files; in addition, it has also increased the mechanical disinfection of root canal system and reduced the incidence of intraoperative complications such as apical transport and root canal perforations. However, there are many tasks that must be resolved because a greater knowledge of the mechanical behavior of NiTi alloy endodontic files will allow greater control over the root canal treatment procedure. If you are currently engaged in state-of the-art research that involves any aspect of the root canal treatment, you are invited to contribute to this Special Issue.

Dr. Álvaro Zubizarreta-Macho
Guest Editor

Manuscript Submission Information

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Keywords

  • root canal treatment
  • NiTi alloy
  • endodontic files
  • digital dentistry
  • cone beam computed tomography
  • apical surgery
  • endodontic outcome
  • cleaning and shaping

Published Papers (1 paper)

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Research

9 pages, 1406 KiB  
Article
The Cyclic Fatigue Resistance of Different Lengths of CM Gold Wire and CM Blue Wire NiTi Alloy Endodontic Rotary Files: An In Vitro Study
by Vicente Faus-Matoses, Vicente Faus-Llácer, Celia Ruiz-Sánchez, Sofía Prats Gallego, Álvaro Zubizarreta-Macho, Beatriz Solano-Mendoza, Benjamín Martín Biedma and Ignacio Faus-Matoses
Appl. Sci. 2023, 13(7), 4612; https://doi.org/10.3390/app13074612 - 5 Apr 2023
Cited by 1 | Viewed by 1257
Abstract
Background: The objective of the present study was to measure and compare how the length of CM Gold Wire and CM Blue Wire NiTi alloy endodontic rotary files impacts their resistance to cyclic fatigue. Methods: A total of 40 sterile endodontic rotary files [...] Read more.
Background: The objective of the present study was to measure and compare how the length of CM Gold Wire and CM Blue Wire NiTi alloy endodontic rotary files impacts their resistance to cyclic fatigue. Methods: A total of 40 sterile endodontic rotary files were chosen and allocated to the following study groups: (A) 25.06 CM Gold wire NiTi alloy endodontic rotary files, 31 mm in length (n = 10); (B) 25.06 CM Gold wire NiTi alloy endodontic rotary files, 25 mm in length (n = 10); (C) 25.06 CM Gold wire NiTi alloy endodontic rotary files, 21 mm in length (n = 10); and (D) 25.06 CM Blue wire NiTi alloy endodontic rotary files, 17 mm in length (n = 10). A specialized device was designed using artificial root canal systems made from stainless steel for the dynamic cyclic fatigue tests, with an apical diameter of 250 µm, curvature angle of 60°, radius of curvature of 5 mm, lengths of 31, 25, 21, and 17 mm, and a 6% taper. An individual operator determined failure of the endodontic rotary instrument through direct observation and the tests were filmed so as to precisely measure the exact time to failure. The results were analyzed using ANOVA and Weibull statistical analysis. Results: The results found statistically significant differences across all study groups (p < 0.05). Conclusions: Rotary file length is inversely proportional to the cyclic fatigue resistance of the 25.06 CM Gold wire NiTi alloy at 31 mm, 25 mm, and 21 mm in length and of the 25.06 CM Blue wire NiTi alloy 17 mm length endodontic rotary files, with a greater length contributing to lower resistance to cyclic fatigue. Full article
(This article belongs to the Special Issue New Challenges in the Instrumentation of the Root Canal System)
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