Journal Article

Dislodgement resistance and structural changes of tricalcium silicate-based cements after exposure to different chelating agents

Ulusoy, Özgür İlke, Narkedamalli, Rajkumar, Luke, Alexander Maniangat, Ulusoy, Nuran, Shetty, Krishna Prasad, Ballal, Nidambur Vasudev

2024

Overview

This study aimed to evaluate the dislodgement resistance and structural changes of different mineral trioxide aggregate cements (MTA) like Pro-Root MTA, Ortho MTA, and Retro MTA after exposure to sodium hypochlorite (NaOCl), NaOCl-Ethylenediaminetetraacetic acid (EDTA), 1-hydroxyethylidene-1, 1-bisphosphonate (Dual Rinse HEDP), and NaOCl-Maleic acid (MA). The root canal spaces of 150 dentine slices were obturated using tricalcium silicate cements and divided into 3 groups (n = 50): Group1: ProRoot MTA, Group2: Retro MTA, and Group3: Ortho MTA. The samples in each group were further subdivided into four experimental (n = 10) and one control groups (n = 10): 2.5% NaOCl-17% EDTA, Dual Rinse HEDP, 2.5% NaOCl-7% Maleic acid, 2.5% NaOCl, distilled water (control). The dislodgement resistance and structural changes of cements were measured. Use of DR HEDP resulted in higher dislodgement resistance compared to17% EDTA and 7% MA in the samples obturated with Ortho MTA and Pro-Root MTA (p<0.001). In Retro MTA group, samples treated with DR HEDP and 17% EDTA had higher dislodgment resistance compared to 7% MA (p<0.001). On microstructural and elemental analysis of all the three MTA cements, samples treated with 17% EDTA and 7% MA were more amorphous and granular when compared to DR HEDP, which was pettle shaped. Calcium level was decreased more in samples treated with 17% EDTA and 7% MA when compared to DR HEDP.

• Publisher: Public Library of Science,Public Library of Science (PLoS)
• Subject: Acetic acid / Adhesion / Adhesives / Antimicrobial agents / Biology and Life Sciences / Calcium Compounds - chemistry / Calcium Compounds - pharmacology / Care and treatment / Cement / Cements / Chelating agents / Chelating Agents - pharmacology / Chelation / Diagnosis / Distilled water / Drug Combinations / Edetic acid / Edetic Acid - pharmacology / Endodontics / Engineering and Technology / Ethylenediaminetetraacetic acid / Ethylenediaminetetraacetic acids / Etidronic Acid / Evaluation / Failure / Heavy metal content / Maleates / Maleic acid / Medicine and Health Sciences / Methods / Oxides - chemistry / Oxides - pharmacology / Phosphonates / Physical Sciences / Research and Analysis Methods / Root canal therapy / Root canals / Silicates / Silicates - chemistry / Silicates - pharmacology / Sodium / Sodium hypochlorite / Teeth / Tooth diseases / Tricalcium silicate / Zirconium oxides