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Influence of heat treatment of nickel–titanium instruments on the accuracy of an electronic apex locator integrated with endodontic motor

CONTEXT: Manufacturers have produced a wide variety of nickel–titanium (NiTi) alloys, but the available literature is limited on the accuracy of some integrated electronic apex locators (EAL) used with different NiTi heat treatments in working length (WL) determination. AIM: This study aims to evalu...

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Autores principales: Paiva, Hermano Camelo, Akisue, Eduardo, de Miranda Candeiro, George T´ccio, de Lima Scardini, Iandara, Caldeira, Celso Luiz, Gavini, Giulio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Wolters Kluwer - Medknow 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9795698/
https://www.ncbi.nlm.nih.gov/pubmed/36591588
http://dx.doi.org/10.4103/jcd.jcd_260_22
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author Paiva, Hermano Camelo
Akisue, Eduardo
de Miranda Candeiro, George T´ccio
de Lima Scardini, Iandara
Caldeira, Celso Luiz
Gavini, Giulio
author_facet Paiva, Hermano Camelo
Akisue, Eduardo
de Miranda Candeiro, George T´ccio
de Lima Scardini, Iandara
Caldeira, Celso Luiz
Gavini, Giulio
author_sort Paiva, Hermano Camelo
collection PubMed
description CONTEXT: Manufacturers have produced a wide variety of nickel–titanium (NiTi) alloys, but the available literature is limited on the accuracy of some integrated electronic apex locators (EAL) used with different NiTi heat treatments in working length (WL) determination. AIM: This study aims to evaluate ex vivo, the influence of different heat treatments of NiTi instruments, and the diameter of the apical preparation on the accuracy of an EAL used during root canal preparation using an integrated EAL and motor unit. MATERIALS AND METHODS: Nineteen extracted human mandibular incisors were included in the study. The WL control was determined by the visual method. Instruments of Mtwo, Reciproc, Reciproc Blue, WaveOne Gold, Twisted File Adaptive, and Hyflex CM systems, with diameters from 0.25 mm to 0.50 mm, were used to measure WL during root canal preparation. The electrical resistivity of instruments with a diameter of 0.25 mm from each system was evaluated using an Inductance, Capacitance, and Resistance (LCR) meter. STATISTICAL ANALYSIS USED: Data were statistically analyzed using Fisher's exact test and Kruskal–Wallis test. RESULTS: The different heat treatments and different diameters did not influence the precision of the EAL (P > 0.05). CONCLUSION: The heat treatment and the diameter of the apical preparation did not influence the accuracy of WL determination by an EAL integrated with the endodontic motor.
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spelling pubmed-97956982022-12-29 Influence of heat treatment of nickel–titanium instruments on the accuracy of an electronic apex locator integrated with endodontic motor Paiva, Hermano Camelo Akisue, Eduardo de Miranda Candeiro, George T´ccio de Lima Scardini, Iandara Caldeira, Celso Luiz Gavini, Giulio J Conserv Dent Original Article CONTEXT: Manufacturers have produced a wide variety of nickel–titanium (NiTi) alloys, but the available literature is limited on the accuracy of some integrated electronic apex locators (EAL) used with different NiTi heat treatments in working length (WL) determination. AIM: This study aims to evaluate ex vivo, the influence of different heat treatments of NiTi instruments, and the diameter of the apical preparation on the accuracy of an EAL used during root canal preparation using an integrated EAL and motor unit. MATERIALS AND METHODS: Nineteen extracted human mandibular incisors were included in the study. The WL control was determined by the visual method. Instruments of Mtwo, Reciproc, Reciproc Blue, WaveOne Gold, Twisted File Adaptive, and Hyflex CM systems, with diameters from 0.25 mm to 0.50 mm, were used to measure WL during root canal preparation. The electrical resistivity of instruments with a diameter of 0.25 mm from each system was evaluated using an Inductance, Capacitance, and Resistance (LCR) meter. STATISTICAL ANALYSIS USED: Data were statistically analyzed using Fisher's exact test and Kruskal–Wallis test. RESULTS: The different heat treatments and different diameters did not influence the precision of the EAL (P > 0.05). CONCLUSION: The heat treatment and the diameter of the apical preparation did not influence the accuracy of WL determination by an EAL integrated with the endodontic motor. Wolters Kluwer - Medknow 2022 2022-08-17 /pmc/articles/PMC9795698/ /pubmed/36591588 http://dx.doi.org/10.4103/jcd.jcd_260_22 Text en Copyright: © 2022 Journal of Conservative Dentistry https://creativecommons.org/licenses/by-nc-sa/4.0/This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.
spellingShingle Original Article
Paiva, Hermano Camelo
Akisue, Eduardo
de Miranda Candeiro, George T´ccio
de Lima Scardini, Iandara
Caldeira, Celso Luiz
Gavini, Giulio
Influence of heat treatment of nickel–titanium instruments on the accuracy of an electronic apex locator integrated with endodontic motor
title Influence of heat treatment of nickel–titanium instruments on the accuracy of an electronic apex locator integrated with endodontic motor
title_full Influence of heat treatment of nickel–titanium instruments on the accuracy of an electronic apex locator integrated with endodontic motor
title_fullStr Influence of heat treatment of nickel–titanium instruments on the accuracy of an electronic apex locator integrated with endodontic motor
title_full_unstemmed Influence of heat treatment of nickel–titanium instruments on the accuracy of an electronic apex locator integrated with endodontic motor
title_short Influence of heat treatment of nickel–titanium instruments on the accuracy of an electronic apex locator integrated with endodontic motor
title_sort influence of heat treatment of nickel–titanium instruments on the accuracy of an electronic apex locator integrated with endodontic motor
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9795698/
https://www.ncbi.nlm.nih.gov/pubmed/36591588
http://dx.doi.org/10.4103/jcd.jcd_260_22
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