Physicochemical Properties of Two Generations of MTA-Based Root Canal Sealers
| Autor: | Abeer A. Mokeem Saleh, Hadeel Y. Edrees, Osama S. Alothmani, Sawsan T. Abu Zeid |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Morphology (linguistics) Silicon Scanning electron microscope Root canal chemistry.chemical_element Calcium Article chemistry.chemical_compound physical and chemical properties medicine General Materials Science MTA-based root canal sealer Solubility Fourier transform infrared spectroscopy Microscopy QC120-168.85 Chemistry pH solubility releasing element QH201-278.5 Engineering (General). Civil engineering (General) Phosphate TK1-9971 medicine.anatomical_structure Descriptive and experimental mechanics Electrical engineering. Electronics. Nuclear engineering TA1-2040 Nuclear chemistry |
| Zdroj: | Materials Materials, Vol 14, Iss 5911, p 5911 (2021) Volume 14 Issue 20 |
| ISSN: | 1996-1944 |
| Popis: | This study evaluated the physicochemical properties and the effect of solubility on the surface morphology and composition of the root canal sealers MTA-Bioseal, MTA-Fillapex, and Adseal. Discs (n = 10) of freshly mixed sealer were prepared and then analyzed by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDX). The discs were immersed for 1, 7, 14, and 28 days in deionized water. The solubility % pH change of the solution and released calcium, phosphate, and silicon were measured for each period. The flowability and film thickness were also evaluated. Changes in the surface morphology and composition after 28 days of immersion were evaluated by SEM/EDX. The data were statistically analyzed by one-way ANOVA at p < 0.05. The FTIR and EDX results revealed similar compositions of MTA-Bioseal and MTA-Fillapex, but with different concentrations. The two MTA-based sealers had higher solution alkalinity (pH > 10) than Adseal (pH ≈ 8.5). MTA-Fillapex exhibited the highest solubility % and the largest calcium and silicon ion release. MTA-Bioseal had the highest phosphate ion release. After 28 days, the sealer surfaces showed large micropores, with larger pores in MTA-Fillapex. Adseal had an intermediate flowability but exhibited the greatest film thickness. Finally, the highest solubility and largest amount of silicon release was exhibited by MTA-Fillapex, which might predispose it to the development of large micropores, compromising the apical seal of obturation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|