Document Type

Article

Publication Date

1-7-2025

Publication Title

SVOA Dentistry

Abstract

Purpose: When RCT fails, retreatment of the case usually requires removal of the previous root canal fill (RCF). The aim of our research was to evaluate the retreatability of a root canal initially filled with gutta percha and EndoSequence® BCS™ HiFlow utilizing chloroform followed by 18% HCl, 18% HCl alone, chloroform alone or saline solution. Methods: 40 extracted single canal teeth were decoronated and obturated utilizing a single cone gutta percha technique and Endosequence BCS, stored one week in an incubator, and then we attempted to remove the previous RCF. Teeth were divided in 4 different groups (n=10). Canals were then cleaned using heat, rotary instruments, hand files and specific solutions. Group A - cleaned by using only saline solution, Group B - cleaned by using only chloroform solution, Group C - cleaned by using only 18% HCl solution, and Group D - cleaned by using chloroform + 18% HCl. Image J software was used to evaluate and quantify the amount of obturation material left in the canal after cleaning of the canals. Results: The pairwise comparison showed no significant difference between chloroform used alone and 18% HCl used alone (P = 0.82). However, chloroform + 18%HCl treatment showed a significant difference between chloroform alone (P = 0.026), 18% HCl alone (P = 0.021), and saline alone (0.003). Conclusion: The result of this study indicates that chloroform followed by 18% HCl was superior in removing the previous RCF Compared to the individual solutions used alone in canals filled with gutta-percha and BCS. However, regardless of the solution used, patency could be achieved.

Volume

6

Issue

1

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