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European Journal of Prosthodontics and Restorative Dentistry

Evaluation of Chlorine Dioxide Irrigation Solution on the Microhardness and Surface Roughness of Root Canal Dentin

Abstract

Evaluation of Chlorine Dioxide Irrigation Solution on the Microhardness and Surface Roughness of Root Canal Dentin

Nidambur Vasudev Ballal, Deepika Khandewal, Saravana Karthikeyan, Krishnaraj Somayaji, Federico Foschi

ABSTRACT
The aim of this study was to evaluate the effect of chlorine dioxide and various other more common irrigation solutions on the microhardness and surface roughness of root canal dentin. Fifty human maxillary central incisors were sectioned longitudinally and treated for 1 minute with 5 ml of the following aqueous solutions (v/v%): Group 1: 13.8%
chlorine dioxide, Group 2: 17% ethylene diamine tetraacetic acid (EDTA). Group 3: 7% maleic acid, Group 4: 2.5% sodium hypochlorite (5ml/min), Group 5: Saline (control). Specimens were subjected to microhardness and surface roughness testing. Chlorine dioxide and sodium hypochlorite reduced the microhardness more than other test agents. The highest surface roughness was produced with maleic acid. Chlorine dioxide should be used cautiously during chemomechanical preparation of the root canal system in order to prevent untoward damage to the teeth.

Keywords
Chlorine dioxide
Irrigation
Maleic acid
Microhardness
Surface roughness

Authors

Nidambur Vasudev Ballal, Deepika Khandewal, Saravana Karthikeyan, Krishnaraj Somayaji, Federico Foschi

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