Synthesis and Characterization of White Mineral Trioxide Aggregate Using Precipitated Calcium Carbonate Extracted from Limestone

Abstract

White Mineral Trioxide Aggregate (WMTA) using precipitated CaCO3 (PCC) from limestone has been synthesized. PCC in calcite structure was extracted from limestone by calcination at 900 °C for 3 h, dissolved in 0.8 M nitric acid solution and followed with carbonation for 60 minutes. PCC was used for the synthesis of WMTA by mixing with tetraethoxyorthosilicate, bismuth oxide, aluminum oxide, catalyst of with HNO3 and NH3 solution and thermally treated at 1100 °C for 3 h. The products were characterized with Thermal Gravimetric Analysis-Differential Thermal Analysis (TGA-DTG), X-ray Diffraction (XRD), Frontier-Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM) and X-ray Fluorescence (XRF). The results showed that the PCC dominated calcite structure was obtained with 75.25% in yield and 99.42% in purity. The WMTA has been successfully synthesized by low thermal treatment at 1100 °C using catalysts of HNO3 and NH3 solution, proven by the presence of tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and Bi2O3 in WMTA.

Effect of Titania and Silver Nanoparticles on the Tensile Strength of Cement-Like Mineral Trioxide Aggregate

“…Calcium carbonate from limestone and silica from rice husk ash were synthesized according to the procedures reported by Fa'izzah et.al. [4], and Ghadafi et.al. [5], respectively.…”

“…This basic composition can be applied to a cement-like MTA synthesis from natural materials, such as limestone. Fa'izzah et al [4] and Ghadafi et al [5] reported a cement-like MTA synthesis using CaCO3 and SiO2 from limestone and rice husk ash, respectively.…”

Synthesis of White Mineral Trioxide Aggregate (WMTA) Using Silica from Rice Husk Ash and CaCO₃ from Limestone

“…All of them are the C-O asymmetric stretching vibration of CO3. According to Faizzah [18], the absorption band characteristic of calcite phase PCC appears at wavenumbers 1420, 872, and 710 cm -1 .…”

Enhancing Compressive Strength and Dentin Interaction of Mineral Trioxide Aggregate by Adding SrO and Hydroxyapatite

“…Deionized water (200 mL) was mixed with 200 μL of NH 3 25% as the catalyst and stirred at 500 rpm for 15 min. Then, 6.93 g of TEOS and 10.71 g of CaCO 3 were added and stirred for 30 min [14]. Al(NO 3 ) 3 0.74 g and 0.71 g SrCO 3 were added and stirred for 30 min.…”