Tay W M, Braden M
J Dent Res. 1984 Jan;63(1):74-5. doi: 10.1177/00220345840630011901.
Two recent proprietary glass ionomer cements showed that in the early stages of set the changes in relative permittivity (dielectric constant) and resistivity were rapid. However, when set, measurements indicated that the cements were highly ionic and polar and behaved similarly to the glass ionomer cements previously reported.