Preparation and Characterization of P2O5 Containing Canasite Glass-Ceramics as Potential Materials for Dental Restorations

Shamohammadi ghahsareh, Zahra; Banijamali, Sara; Aghaei, Alireza

doi:10.22068/ijmse.3258

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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Shamohammadi ghahsareh Z, Banijamali S, Aghaei A. Preparation and Characterization of P2O5 Containing Canasite Glass-Ceramics as Potential Materials for Dental Restorations. IJMSE 2023; 20 (2) :1-17
URL: http://ijmse.iust.ac.ir/article-1-3258-en.html

Preparation and Characterization of P2O5 Containing Canasite Glass-Ceramics as Potential Materials for Dental Restorations

Zahra Shamohammadi ghahsareh

, Sara Banijamali

, Alireza Aghaei

Abstract: (8289 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.m^1/2) 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