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J Dent Res 45(2): 379-387, 1966
© 1966 International and American Associations for Dental Research
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Physical Properties of Some Zinc Oxide-Eugenol Cements

J. RUSSELL ANDERSON JR. 1 and GEORGE E. MYERS 1

1 The University of Michigan School of Dentistry, Ann Arbor, Michigan

This study of the physical properties of some zinc oxide-eugenol temporary cements deals with consistency, working and setting times, film thickness, hardness, and compressive strength. Six commercially available products were evaluated. All of the cements were mixed to a clinically determined "inlay setting" consistency. The consistency values for the zinc oxide-eugenol cements tested ranged from 35 to 60 mm. These cements had working times of 3 to 21 minutes. The final setting times ranged from 5.5 minutes to over 1 hour, and the final setting times of four of the cements closely followed the end of the working period. The film thickness of all the cements was below the maximum of 40 µ specified for the zinc phosphate cements when tested under the conditions described. The hardness and the strength of the set cement were closely related. The hardest cements were the strongest. The hardness and strength values of the zinc oxide-eugenol cements were far below those values for the zinc phosphate cements, however. One cement tested (product B) is supplied with a modifier with which the properties of hardness and strength can be changed to suit varying clinical requirements without a significant change in the other physical properties.

Zinc oxide-eugenol temporary cements are available with varying physical properties, and selection for clinical use can be based on the properties of the cement. Further study is needed to determine the effects of the powder-liquid ratio, temperatures, humidity, powder particle size, and manipulative variables on the physical properties of the zinc oxide-eugenol cements.

Submitted on May 21, 1965




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T.D. Gilson and G.E. Myers
Clinical Studies of Dental Cements: III. Seven Zinc Oxide-Eugenol Cements Used for Temporarily Cementing Completed Restorations
Journal of Dental Research, January 1, 1970; 49(1): 14 - 20.
[PDF]

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R. F. Batchelor and A. D. Wilson
Zinc Oxide-Eugenol Cements: I. The Effect of Atmospheric Conditions on Rheological Properties
Journal of Dental Research, September 1, 1969; 48(5): 883 - 887.
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T.D. Gilson and G.E. Myers
Clinical Studies of Dental Cements: I. Five Zinc Oxide-Eugenol Cements
Journal of Dental Research, September 1, 1968; 47(5): 737 - 741.
[Abstract] [PDF]


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