Apparent Heats of Wetting and Heats of Reaction of the Components of Tooth Structure and Synthetic Fluorapatite

Author:

Huget Eugene F.1,Brauer Gerhard M.1,Loebenstein William V.1

Affiliation:

1. US Army Institute of Dental Research, Walter Reed Army Medical Center, and Dental Research Section, National Bureau of Standards, Washington, DC

Abstract

The apparent heats of wetting (ΔHW) and heats of reaction (ΔHR) of ground dentin, enamel, anorganic tooth, and synthetic fluorapatite of known specific surface were determined calorimetrically. Values of ΔHW in water were affected by the presence of collagenous matter. Reactions at the surface were caused mainly by organic groups, since the ΔHR values for anorganic tooth, enamel, and fluorapatite were much smaller when exposed to reagents.

Publisher

SAGE Publications

Subject

General Dentistry

Reference17 articles.

1. Zettlemoyer, A.C. "Surface Properties and Surfactant Behavior from Heats of Immersion and Adsorption Measurements," in Phillips, R.W., and Ryge, G. (eds.): Adhesive Restorative Dental Materials, Indiana University Medical Center Workshop, sponsored by National Institutes of Health and US Public Health Service, 1961, pp 95-102.

2. Brauer, G.M. "Measurement of the Surface Area and the Heats of Wetting of Dentin Powders," in Adhesive Restorative Dental Materials 11, University of Virginia Workshop , Public Health Service Publication no. 1494, 1966, pp 203-211.

3. Winchell, A.N., and Winchell, H.: The Microscopical Characters of Artificial Solid Substances, New York: Academic Press, 1964, p 203.

4. On the Design and Efficiency of Isothermal Reaction Calorimeters.

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