Official publication of Magadh University and Kolhan University, Government of Bihar and Jharkhand, India
Year : 2021
Volume : Volume 12
Issue : Issue 2
Address for correspondence :
Dr. Namita Agrawal
namita0903@gmail.com
Background: Endodontic treatment effectiveness is dependent on the use of dental tools and effective irrigants solutions to chemomechanically remove the root canal system. Root canal dentin microhardness may be affected by the physicochemical properties of dentin structure, which can be altered by different irrigation solutions. The purpose of this study was to examine how various irrigation methods influenced the microhardness of human root canal dentin. Materials and Methods: A total of 100 extracted single maxillary and mandibular root canal central incisors, lateral incisors were used. After each tooth was instrumented with hand treated steel records and flooded with 2 mL of refined in the center of each document, each tooth was split longitudinally. An irrigant was used to soak the roots for five minutes after they had been divided into four groups of 25 (n = 25). Ten milliliters of 2.5 percent sodium hypochlorite (NaOCL), 10 milliliters of 17 percent ethylene diamine tetraacetic corrosive (EDTA), and ten milliliters of 2.5 percent NaOCL, followed by 10 milliliters of 2 percent chlorhexidine digluconate (CHX), and 10 milliliters of 2.5 milliliters of 2 percent chlorhexidine digluconate (CHX), were used (CHX). A Vickers microhardness analyzer was used to examine the dentin microhardness of ten root sections from each of the two groups. Results: The t-test, ANOVA test, and Post Hoc test were used to analyse the data. The biggest percentage decrease in microhardness values was seen in group II, followed by group III, group IV, and finally group I. Except for groups III and IV, there was a significant difference amid them (P 0.05). The coronal third showed the greatest percentage drop, with a significant difference amid the apical and middle thirds (P 0.05), but the apical and middle thirds showed no significant change. Conclusions: CHX is the best final irrigant if there is a good interim flush to keep NaOCL from precipitating. Because it is the most damaged third, the coronal third requires a cautious approach.
Keywords: Endodontics, Microhardness, Chlorhexidine, NaOCL, EDTA, Precipitate.