Comparison of a SiO(2)-CaO-ZnO-SrO glass polyalkenoate cement to commercial dental materials: glass structure and physical properties

J Mater Sci Mater Med. 2013 Feb;24(2):271-80. doi: 10.1007/s10856-012-4813-1. Epub 2012 Nov 22.

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, T (w) and setting, T (s) times) for BT 101 were shorter than the commercial GPCs. BT 101 also had a higher setting exotherm (S (x) -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, σ (c)), and 34, 54, and 62 MPa (biaxial flexural strengths, σ (f)), respectively. The strengths of BT 101 are more suitable for spinal applications than commercial GPCs.

Publication types

  • Comparative Study

MeSH terms

  • Biomechanical Phenomena
  • Calcium Compounds / chemistry
  • Commerce
  • Compressive Strength / physiology
  • Dental Materials / analysis
  • Dental Materials / chemistry*
  • Glass / chemistry*
  • Glass Ionomer Cements / analysis
  • Glass Ionomer Cements / chemistry*
  • Hardness Tests
  • Materials Testing
  • Oxides / chemistry
  • Physical Phenomena
  • Silicon Dioxide / chemistry
  • Strontium / chemistry
  • Temperature
  • Zinc Oxide / chemistry

Substances

  • Calcium Compounds
  • Dental Materials
  • Glass Ionomer Cements
  • Oxides
  • fuji IX
  • ketac-molar
  • Silicon Dioxide
  • lime
  • Zinc Oxide
  • Strontium