Korean J Orthod.  1975 Dec;5(1):21-24.

The experimental study of the effect of zinc phosphate cement on the solubility of enamel

  • 1Department of Orthodontics, Graduate School, Seoul National University, Korea.


The purpose of this study was to investigate the effect of sinc phosphate cement on the enamel surface of extracted teeth. The tooth was placed in a test tube, which was subjected to 5ml of 0.2M acetate buffer at pH 4 by "window technique." The calcium content of the acetate buffer was determined by the Perkin-Elmer Model 303 Atomic Absorption Spectrophotometer. The obtained results were summarized in the following. 1. The solubility of enamel is 0.92mg/cm2. ml in control group. 2. The solubility of enamel is increased by treating these with zinc phosphate cements. 3. The solubility of enamel is 0.69mg/cm2. ml by treating with Lee Smith cement. 4. The solubility of enamel is 0.30mg/cm2. ml by treating with G-C's cement.

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