Introduction: There are multiple Reconstructive products based on Tri-calcium phosphate with different physical and chemical properties which have some advantages and deficiencies. In current study the Iranian New Endodontic Restorative Material (NERM) with Angelus MTA, has been compared in term of physical and chemical properties such as; PH, Compressive Strength, release of calcium ions, and final phase of each product and setting time.
Method: Five samples of each dental material were prepared based on ISO standards to survey the physical and chemical properties of NERM and Angelus MTA. The structural survey was done by XRD analysis and use of electronic microscopes. Setting time was measured by Gilmore in 5 minutes. The calcium ions release and PH was assessed by spectrophotometer and PH meter, respectively. In addition, compressive strengths of the test materials were determined by modifying the previous method. The data were analyzed statistically using the analysis of variance (ANOVA) and the Student's test (t-test).
Results: Structural survey for both dental material revealed a similar crystal structure and no significant differences were observed in the microstructure of the NERM and Angelus MTA. Setting time in NERM and Angelus MTA samples was 25 and 17 minutes, respectively (P
Key words: Angelus MTA, New Endodontic Restorative Material, physical properties, chemical properties.
|
