Preparation and investigation of a glass in the system Al2O3-SiO2-CaO for dental applications

The aim of this work was the synthesis and investigation of the thermal and mechanical properties of a glass in the Al2O3-SiO2-CaO-F system, to be used in dental field. Following the synthesis, the glass powder was investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The thermal expansion coefficient was obtained by employing dynamic mechanical analysis (DMA). The mechanical characterization of the glass employed the determination of Young modulus and compressive strength. The crystallization process was investigated using differential thermal analysis (DTA) and XRD. The results allowed us to affirm that the characteristics of this glass, in comparison with the tooth hard substances and other commonly employed inorganic dental materials, recommend it for further utilization in the dental field. (c) 2006 Elsevier B.V. All rights reserved.