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J Dent Res 43(2): 281-299, 1964
© 1964 International and American Associations for Dental Research
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Physical Properties of Cements, Based on Zinc Oxide, Hydrogenated Rosin, o-Ethoxybenzoic Acid, and Eugenol

SIMON CIVJAN 1 and G. M. BRAUER 1

1 National Bureau of Standards, Washington, D.C.

The physical properties of two formulations containing o-ethoxybenzoic acid (EBA)-eugenol liquid and zinc oxide-hydrogenated rosin powder were investigated and compared with those of zinc oxide-eugenol and zinc phosphate cements.

With the exception of their higher coefficients of thermal expansion, the EBA cements had much better physical properties than zinc oxide-eugenol cement and showed compressive, tensile, and shear strengths that approached those of zinc phosphate cements.

Addition of heat-treated fused quartz to the powder improved the dimensional stability and strength of the EBA cements.

The materials appear promising as improved sedative bases and as pulp-capping and cementing media.

Submitted on September 9, 1963






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