Accuracy of Root ZX in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigant

Objectives To evaluate the accuracy of the Root ZX in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigants, such as saline, 5.25% sodium hypochlorite (NaOCl), 2% chlorhexidine liquid, 2% chlorhexidine gel, and RC-Prep, and also to determine the electrical...

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Main Authors: Hyeong-Soon Shin, Won-Kyung Yang, Mi-Ri Kim, Hyun-Jung Ko, Kyung-Mo Cho, Se-Hee Park, Jin-Woo Kim
Format: Article
Language:English
Published: Korean Academy of Conservative Dentistry 2012-08-01
Series:Restorative Dentistry & Endodontics
Online Access:https://doi.org/10.5395/rde.2012.37.3.149
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author Hyeong-Soon Shin
Won-Kyung Yang
Mi-Ri Kim
Hyun-Jung Ko
Kyung-Mo Cho
Se-Hee Park
Jin-Woo Kim
author_facet Hyeong-Soon Shin
Won-Kyung Yang
Mi-Ri Kim
Hyun-Jung Ko
Kyung-Mo Cho
Se-Hee Park
Jin-Woo Kim
author_sort Hyeong-Soon Shin
collection DOAJ
description Objectives To evaluate the accuracy of the Root ZX in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigants, such as saline, 5.25% sodium hypochlorite (NaOCl), 2% chlorhexidine liquid, 2% chlorhexidine gel, and RC-Prep, and also to determine the electrical conductivities of these endodontic irrigants. Materials and Methods A root perforation was simulated on twenty freshly extracted teeth by means of a small perforation made on the proximal surface of the root at 4 mm from the anatomic apex. Root ZX was used to locate root perforation and measure the electronic working lengths. The results obtained were compared with the actual working length (AWL) and the actual location of perforations (AP), allowing tolerances of 0.5 or 1.0 mm. Measurements within these limits were considered as acceptable. Chi-square test or the Fisher's exact test was used to evaluate significance. Electrical conductivities of each irrigant were also measured with an electrical conductivity tester. Results The accuracies of the Root ZX in perforated teeth were significantly different between liquid types (saline, NaOCl) and gel types (chlorhexidine gel, RC-Prep). The accuracies of electronic working lengths in perforated teeth were higher in gel types than in liquid types. The accuracy in locating root perforation was higher in liquid types than gel types. 5.25% NaOCl had the highest electrical conductivity, whereas 2% chlorhexidine gel and RC-Prep gel had the lowest electrical conductivities among the five irrigants. Conclusions Different canal irrigants with different electrical conductivities may affect the accuracy of the Root ZX in perforated teeth.
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spelling doaj.art-8ce5ff0dbc4b4f438504031b843ed0262022-12-22T01:01:52ZengKorean Academy of Conservative DentistryRestorative Dentistry & Endodontics2234-76582234-76662012-08-0137314915410.5395/rde.2012.37.3.149 Accuracy of Root ZX in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigantHyeong-Soon Shin0Won-Kyung Yang1Mi-Ri Kim2Hyun-Jung Ko3Kyung-Mo Cho4Se-Hee Park5Jin-Woo Kim6Department of Conservative Dentistry, Ulsan University Asan Medical Center, Seoul, KoreaDepartment of Conservative Dentistry, Ulsan University Asan Medical Center, Seoul, KoreaDepartment of Conservative Dentistry, Ulsan University Asan Medical Center, Seoul, KoreaDepartment of Conservative Dentistry, Ulsan University Asan Medical Center, Seoul, KoreaDepartment of Conservative Dentistry, Gangneung-Wonju National University College of Dentistry, Gangneung, Korea.Department of Conservative Dentistry, Gangneung-Wonju National University College of Dentistry, Gangneung, Korea.Department of Conservative Dentistry, Gangneung-Wonju National University College of Dentistry, Gangneung, Korea.Objectives To evaluate the accuracy of the Root ZX in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigants, such as saline, 5.25% sodium hypochlorite (NaOCl), 2% chlorhexidine liquid, 2% chlorhexidine gel, and RC-Prep, and also to determine the electrical conductivities of these endodontic irrigants. Materials and Methods A root perforation was simulated on twenty freshly extracted teeth by means of a small perforation made on the proximal surface of the root at 4 mm from the anatomic apex. Root ZX was used to locate root perforation and measure the electronic working lengths. The results obtained were compared with the actual working length (AWL) and the actual location of perforations (AP), allowing tolerances of 0.5 or 1.0 mm. Measurements within these limits were considered as acceptable. Chi-square test or the Fisher's exact test was used to evaluate significance. Electrical conductivities of each irrigant were also measured with an electrical conductivity tester. Results The accuracies of the Root ZX in perforated teeth were significantly different between liquid types (saline, NaOCl) and gel types (chlorhexidine gel, RC-Prep). The accuracies of electronic working lengths in perforated teeth were higher in gel types than in liquid types. The accuracy in locating root perforation was higher in liquid types than gel types. 5.25% NaOCl had the highest electrical conductivity, whereas 2% chlorhexidine gel and RC-Prep gel had the lowest electrical conductivities among the five irrigants. Conclusions Different canal irrigants with different electrical conductivities may affect the accuracy of the Root ZX in perforated teeth.https://doi.org/10.5395/rde.2012.37.3.149
spellingShingle Hyeong-Soon Shin
Won-Kyung Yang
Mi-Ri Kim
Hyun-Jung Ko
Kyung-Mo Cho
Se-Hee Park
Jin-Woo Kim
Accuracy of Root ZX in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigant
Restorative Dentistry & Endodontics
title Accuracy of Root ZX in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigant
title_full Accuracy of Root ZX in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigant
title_fullStr Accuracy of Root ZX in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigant
title_full_unstemmed Accuracy of Root ZX in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigant
title_short Accuracy of Root ZX in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigant
title_sort accuracy of root zx in teeth with simulated root perforation in the presence of gel or liquid type endodontic irrigant
url https://doi.org/10.5395/rde.2012.37.3.149
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