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Wilson, A.D. and Nicholson, J.W. (1993) Acid-base cements: Their biomedical and industrial applications. Cambridge University Press, Cambridge. doi:10.1017/CBO9780511524813

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• TITLE: Studies on electrical and thermal properties of dental glass ionomer cement

  AUTHORS: Tadiboyina Anil Babu, Kocharlakota Venkata Ramesh, Devulapalli Lakshmipathi Sastry

  KEYWORDS: Dental Glass Ionomer Cement; Dielectric Properties; DSC Studies; DC Conductivity Measurements

  JOURNAL NAME: Journal of Biomedical Science and Engineering, Vol.5 No.11, November 26, 2012

  ABSTRACT: A commercially available dental Glass Ionomer Cement (GIC) was studied after setting at room temperature (300 K) to understand its DC electrical conductivity, dielectric and thermal properties. The dental GIC’s are supposed to have free mobile charge carriers like F- ions. Interestingly this material loses its conductivity above 80°C and behaves like a non-polar substance. The frequency dependent dielectric studies also indicate the loss of mobile charge carriers in the samples annealed at 80°C. The DSC and TGA studies indicate that the material loses H2O exothermically at 100°C. This is attributed to the onset of a secondary setting reaction.