Relative permittivity and resistivity of zinc oxide-eugenol cements was measured during setting. During setting the relative permittivity goes through a very pronounced maximum; simultaneously, resistivity suddenly increases by a few orders of magnitude. Such behavior is explicable in the initial function of water, which subsequently becomes bound.
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References
1.
Wilson, A.D. , and Kent, B.E.: Dental Silicate Cements: V. Electrical Conductivity, J Dent Res47: 463-470, 1968.
2.
Wilson, A.D. , and Kent, B.E.: Zinc Phosphate Cements: Chemical Study of In Vitro Durability, J Dent Res49: 1049-1054, 1970.
3.
Bottcher, C.J.F. : Theory of Electric Polarisation, Amsterdam: Elsevier Publishing Co., 1952, pp 328-372.
4.
Copeland, H.I. ; Brauer, G.M.; Sweeney, W.T.; and Forziati , A.F.: Setting Reaction of Zinc Oxide and Eugenol, J Res Natl Bur Stand55: 133-138, 1955.
5.
Gerner, M.M. ; Zadorozhnyi, B.A.; Ryabina, L.V.; Batovskii, V.N.; and Sharchilev , V.I.: Infra-red Spectra of Eugenol and Zinc Eugenolate, J Phys Chem ( Russia) 40: 122-123, 1966, translated from Zh Fiziol Klin40 : 231-232, 1966.
6.
Weinberg, J.E. ; Rabinowitz, J.L.; Zanger, M.; and Gennaro, A.R.: 14C EugenolI. Synthesis, Polymerization, and Use, J Dent Res51: 1055-1061, 1972 .
7.
Wilson, A.D. , and Mesley, R.J.: Zinc Oxide-Eugenol Cements: III. Infrared Spectroscopic Studies, J Dent Res51: 1581-1588, 1972.
