Comparison of a SiO2-CaO-ZnO-SrO glass polyalkenoate cement to commercial dental materials: Glass structure and physical properties

A. W. Wren, A. Coughlan, F. R. Laffir, M. R. Towler

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Glass polyalkenoate cements (GPCs) have previously been considered for orthopedic applications. A Zn-GPC (BT 101) was compared to commercial GPCs (Fuji IX and Ketac Molar) which have a setting chemistry analogous to BT 101. Handling properties (working, Tw and setting, Ts times) for BT 101 were shorter than the commercial GPCs. BT 101 also had a higher setting exotherm (Sx - 34 °C) than the commercial GPCs (29 °C). The maximum strengths for BT 101, Fuji IX, and Ketac Molar were 75, 238, and 216 MPa (compressive, σc), and 34, 54, and 62 MPa (biaxial flexural strengths, σf), respectively. The strengths of BT 101 are more suitable for spinal applications than commercial GPCs.

    Original languageEnglish
    Pages (from-to)271-280
    Number of pages10
    JournalJournal of Materials Science: Materials in Medicine
    Volume24
    Issue number2
    DOIs
    Publication statusPublished - Feb 2013

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