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Published on: December 20, 2024
The properties of a new endodontic material
Saeed Asgary1, Sima Shahabi, Tahereh Jafarzadeh
1Department of Endodontics, Iranian Center for Endodontic Research, Dental Research Center, Dental School, Shahid Beheshti University MC, Tehran, Iran. saasgary@yahoo.com
Journal of Endodontics
|July 19, 2008
Summary
A new experimental cement (NEC) shows comparable physical properties to mineral trioxide aggregate (MTA) but with a faster setting time and improved flow and film thickness, indicating its potential as a dental material.
Area of Science:
- Materials Science
- Biomaterials Engineering
- Dental Materials Science
Background:
- Mineral trioxide aggregate (MTA) is a widely used dental material, but its properties can be improved.
- Developing new experimental cements (NEC) with enhanced characteristics is crucial for restorative dentistry.
Purpose of the Study:
- To evaluate the physical properties and chemical composition of a novel experimental cement (NEC).
- To compare NEC with mineral trioxide aggregate (MTA) for potential clinical applications.
Main Methods:
- Physical properties assessed included pH, working time, setting time, dimensional changes, flow, and film thickness, following ISO 6876:2001.
- Chemical composition analyzed using scanning electron microscopy and electron probe microanalysis (EPMA).
Main Results:
- NEC and MTA exhibited similar working time, pH, and dimensional stability.
- NEC demonstrated a significantly shorter setting time compared to MTA (p < 0.05).
- NEC showed superior flow and considerably reduced film thickness over MTA (p < 0.01 and p < 0.001).
- EPMA revealed lime (CaO) as the dominant compound in both, but with significant differences in other compounds.
Conclusions:
- The new experimental cement (NEC) possesses distinct chemical composition compared to MTA.
- NEC exhibits acceptable physical properties, including faster setting, better flow, and thinner film, suggesting its viability as a dental material.
