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

Abstract

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

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