Effect of curing conditions on physical and chemical properties of MTA+
| Autor: | T. Zarra, Theodor Lambrianidis, Christos Gogos, L. Vasiliadis |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Time Factors
Surface Properties Scanning electron microscope medicine.medical_treatment 0206 medical engineering 02 engineering and technology Calcium Hydroxide Root Canal Filling Materials 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine X-Ray Diffraction Materials Testing Surface roughness medicine Solubility Aluminum Compounds General Dentistry Saline Curing (chemistry) Calcium hydroxide Silicates Significant difference Temperature Humidity Oxides 030206 dentistry Calcium Compounds Hydrogen-Ion Concentration Microstructure 020601 biomedical engineering Drug Combinations chemistry Microscopy Electron Scanning Bismuth Nuclear chemistry |
| Zdroj: | International Endodontic Journal. 51:1279-1291 |
| ISSN: | 0143-2885 |
| Popis: | AIM To evaluate setting time, pH, solubility and surface roughness of MTA+ and ProRoot MTA and characterize their hydration under several curing conditions. METHODOLOGY Specimens were prepared to evaluate setting time (n = 6 for each group, specimen dimensions 10 × 8 × 5 mm), solubility (n = 6 for each group, specimen dimension 20 mm in diameter and 1.5 mm thick) after 1 and 28 days, pH (n = 10 for each group, specimen dimensions 10 mm in diameter and 1 mm thick) after 1, 7, 14, 21 and 28 days and surface roughness (n = 10 for each group, specimen dimensions 4 mm in diameter and 3 mm high) after 28 days when cements were cured at 95% humidity or immersed in saline or HBSS at 37 °C. The powder and liquid were mechanically mixed by an amalgamator. The set materials were characterized using X-ray diffraction analysis, scanning electron microscopy and X-ray energy-dispersive analysis. Statistical comparisons were employed using one-way anova. The level of significance was set at P = 0.05. RESULTS Setting time was significantly shorter when cements were cured at 95% humidity compared to those in saline (P |
| Databáze: | OpenAIRE |
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