IMPACT OF VARIOUS IRRIGANT MATERIALS ON MICROHARDNESS FOR ROOT DENTIN
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Keywords
Chelating Agents, EDTA, Vicker’s Microhardness
Abstract
Aim: To investigating how various endodontic irrigants affect the microhardness of dentin in root canals.
Materials and Methods: Twenty recently extracted Upper anterior teeth were horizontally cut at the cementoenamel junction for this in vitro investigation. To create a total of 20 dentin discs, Next, each root's middle third was cut into 4 mm-thick slices. The samples were randomly assigned to four groups, which consisting of 2.5% sodium hypochlorite (NaOCl), 17% EDTA, 2% chlorhexidine solution and saline (as control group), based on the chelating agent that was applied. The dentin's microhardness was measured using Vicker's indenter both before and after two minutes of chelating agent treatment. Tukey's post hoc test, paired t test, and one-way analysis of variance (ANOVA) were used to collect and statistically assess the data.
Results: The groups' microhardness values differed greatly from different groups to control group. The reduction of dentin microhardness by saline was less successful. A greater reduction in microhardness was observed with EDTA, 2.5% sodium hypochlorite (NaOCl), and 2% chlorhexidine.
Conclusion: The microhardness was decreased by all of the chelating solutions. Comparing saline to other materials, less change was seen in the hardness of the root dentin.
References
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Ahmed D. Abogabal
Lecturer, Department of Dental Bio-Materials, Faculty of Dental Medicine (Assiut branch), Al-Azhar University, Assiut, Egypt.
Mohammed E. Rokaya
Associate Professor, Department of Endodontics, Faculty of Dental Medicine (Assiut branch), Al-Azhar University, Assiut, Egypt.
Ahmed Mohamed Nagiub
Lecturer, Department of Dental Bio-Materials, Faculty of Dental Medicine (Boys), Al-Azhar University, Cairo, Egypt.
Mohamed A. El Shreif
Department of Endodontics, Faculty of Dentistry, Menofia University, Menofia, Egypt.
Hisham M. Abada
Department of Endodontics, Faculty of Dentistry, Kaferelsheikh University, Kaferelsheikh, Egypt.
Safwat S Elwaseef
Lecturer, Department of Endodontics, Faculty of Dental Medicine (Assiut branch), Al-Azhar University, Assiut, Egypt.
Dana S. El Gemaie
Department of Endodontics, Faculty of Dentistry, Galala University, Suez, Egypt.