title: Comparison of a SiO(2)-CaO-ZnO-SrO glass polyalkenoate cement to commercial dental materials: glass structure and physical properties.
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.
authors.affiliation: Inamori School of Engineering, Alfred University, Alfred, NY 14802, USA. wren@alfred.edu
authors.forename: A W
authors.initials: AW
authors.lastname: Wren
authors.forename: A
authors.initials: A
authors.lastname: Coughlan
authors.forename: F R
authors.initials: FR
authors.lastname: Laffir
authors.forename: M R
authors.initials: MR
authors.lastname: Towler
mesh_terms: D001696:Biomechanical Phenomena; D017610:Calcium Compounds / Q000737:chemistry; D003132:Commerce; D019245:Compressive Strength / Q000502:physiology; D003764:Dental Materials / Q000032:analysis / Q000737:chemistry*; D005898:Glass / Q000737:chemistry*; D005899:Glass Ionomer Cements / Q000032:analysis / Q000737:chemistry*; D006245:Hardness Tests; D008422:Materials Testing; D010087:Oxides / Q000737:chemistry; D055585:Physical Phenomena; D012822:Silicon Dioxide / Q000737:chemistry; D013324:Strontium / Q000737:chemistry; D013696:Temperature; D015034:Zinc Oxide / Q000737:chemistry
chemical_list: D017610:Calcium Compounds; D003764:Dental Materials; D005899:Glass Ionomer Cements; D010087:Oxides; C110713:fuji IX; C110712:ketac-molar; D012822:Silicon Dioxide; C016538:lime; D015034:Zinc Oxide; D013324:Strontium