Volume 20, Issue 2 (June 2023)                   IJMSE 2023, 20(2): 1-17 | Back to browse issues page

‎ 10.22068/ijmse.3258

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Preparation and Characterization of P2O5 Containing Canasite Glass-Ceramics as Potential Materials for Dental Restorations
Zahra Shamohammadi ghahsareh , Sara Banijamali , Alireza Aghaei
Abstract:   (4651 Views)
Various analysis techniques were used to investigate the effects of P2O5 on the crystallization, mechanical features, and chemical resistance of canasite-based glass-ceramics. The results showed that canasite-type crystals were the primary crystalline phase in the examined glass-ceramics subjected to the two-step heat treatment, while fluorapatite was the secondary crystalline phase in some specimens. The microstructural observations by field emission electron microscope indicated that the randomly oriented interlocked blade-like canasite crystals decreased with an increase in the P2O5 content of the parent glasses. Among the examined glass-ceramics, the Base-P2 composition (containing 2 weight ratios of P2O5 in the glass) showed the most promising mechanical features (flexural strength of 176 MPa and fracture toughness of 2.9 MPa.m1/2) and chemical resistance (solubility of 2568 µg/cm2). This glass-ceramic could be further considered as a core material for dental restorations.

 
Keywords: Glass-ceramic, Dental restorations, Canasite, Mechanical properties, Chemical durability
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Type of Study: Research Paper | Subject: Ceramics
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