The effect of temperature on the rheological properties of four dental restorative materials was investigated at 26 to 60 C. Acoustic absorption was used to calculate loss coefficient, and resonance frequency was used to obtain Young's modulus. Young's moduli and loss coefficients of the restorative materials were temperature dependent.
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References
1.
Spinner, S., and Tefft, W.E.: A Method for Determining Mechanical Resonance Frequencies and for Calculating Elastic Moduli from Frequencies, Proc ASTM61: 1221-1238, 1961.
2.
Fitzgerald, J.V.: Acoustic Spectrometry of Adhesives, Adhesive Age6: 36-38, 1963.
3.
Matusik, F.J. : Structure Composition and Bond Strength, Ceramic Age80: 40-50, 1964.
4.
Shen, M.C.; Strong, J.D.; and Matusik, F.J.: The Effect of Hydrogen Bonds on the Dynamic Mechanical Properties of Glassy Polymethylmethacrylates from 77°K, J Macromol Sci (Phys)Bl(1): 15-27, 1967.
5.
Torgalkar, A.M. : Comparison of Rheological Properties of Four Dental Restoratives, J Dent Res52: 476-482, 1973.
