Results 181 to 190 of about 4,088 (248)

The effect of zinc oxide eugenol cement on penicillin

American Journal of Orthodontics and Oral Surgery, 1946
Abstract Penicillin is affected by either eugenol or zinc oxide-eugenol cement. The extent in the reduction of the potency of low- and high-unit concentrations varies. Low-unit dilutions lose most or all of their inhibitory activity towards Staphylococcus aureus , whereas the higher-unit concentrations, though affected, still possess definite growth-
Henry A. Bartels
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Zinc oxide eugenol cements. VI. Effect of zinc oxide type on the setting reactions

Journal of Biomedical Materials Research, 1982
AbstractThe particle size and adsorbed water on zinc oxide from various sources have been investigated and related to the reactivity with eugenol. The reactivity of zinc oxide with eugenol alone increases with the amount of water reversibly adsorbed.
H J, Prosser, A D, Wilson
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Pulpal response to a zinc oxide–eugenol cement

International Endodontic Journal, 1987
Summary. The British Standards Institution have produced a recommended testing procedure for toxicity of dental materials; this advocates the use of a zinc oxide—eugenol cement such as Kalzinol, as a bland control in deep cavities. In this study, Kalzinol was applied directly to the exposed pulps of germ‐free rat molar teeth.
A, Watts, R C, Paterson
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Zinc Oxide-Eugenol Cements: IV. Microstructure and Hydrolysis

Journal of Dental Research, 1973
The microstructure of zinc oxide-eugenol cement and the water-leached product was examined by electron microscopy and scanning electron microscopy. Crystalline zinc eugenolate, which forms a reaction product, encases and binds unconsumed zinc oxide grains.
A D, Wilson, D J, Clinton, R P, Miller
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Dielectric Properties of Zinc Oxide-Eugenol Type Cements

Journal of Dental Research, 1974
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.
M, Braden, R L, Clarke
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Mechanical mixing of zinc oxide-eugenol cements

The Journal of Prosthetic Dentistry, 1982
An analysis of the data yielded the following conclusions: 1. The use of a gelatin capsule in a metal casing combines the advantages of mechanical mixing and those of a disposable system. 2. In comparison to conventional mixing by hand, equal results can be obtained with mechanical mixing. 3. Mixing time and the use of a glass pestle will influence the
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Pulp reaction to a temporary zinc oxide/eugenol cement

The Journal of Prosthetic Dentistry, 1976
The pulpal irritation, such as inflammatory reaction and aspiration of pulpal cells, demonstrated after insertion of the zinc oxide/eugenol cement (Nobetec) seems to warrant the following recommendations: (1) A temporary restoration with a zinc oxide/eugenol base should not be inserted in deep cavities without a protective liner or a calcium hydroxide ...
M, Brännström, H, Nyborg
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Zinc Oxide-Eugenol Cements: III. Infrared Spectroscopic Studies

Journal of Dental Research, 1972
The structure of eugenol, zinc eugenolate salt, zinc oxide-eugenol and guaiacol cements, and deuterated analogues was studied by infrared spectroscopy. The molecular geometry of the zinc eugenolate chelate and the parent eugenol dimer were similar. The role of water in the cement structure remains a matter for speculation.
Alan D. Wilson, Robert J. Mesley
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Application of bis-eugenol to a zinc oxide eugenol cement

Journal of Dentistry, 1999
To assess the usefulness of dimerized eugenol (bis-eugenol) in dentistry, the physical properties of zinc oxide eugenol cement (ZOE) with bis-eugenol and the cytotoxicity of bis-eugenol were studied.Setting time, compressive strength, solubility and disintegration of ZOE cement with bis-eugenol according to the specifications of JDMAS315 were evaluated.
S, Fujisawa, Y, Kashiwagi, T, Atsumi, I, Iwakura, T, Ueha, Y, Hibino, I, Yokoe   +6 more
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Zinc Oxide-Eugenol Cements: II. Study of Erosion and Disintegration

Journal of Dental Research, 1970
The continuous leaching of eugenol from zinc oxide-eugenol cements causes the weak zinc eugenolate chelate, which forms the binding matrix, to decompose and the cement to disintegrate. The relevance of specification solubility and disintegration tests is discussed.
A D, Wilson, R F, Batchelor
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