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J Dent Res 36(6): 977-985, 1957
© 1957 International and American Associations for Dental Research
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STUDIES ON THE SOLUBILITY OF CERTAIN DENTAL MATERIALS

RICHARD D. NORMAN 1, MARJORIE L. SWARTZ 1, and RALPH W. PHILLIPS 1

1 Department of Dental Materials, Indiana University School of Dentistry, Indianapolis, Ind.

The solubility of zinc phosphate and silicate cement in acids, pH of the media, and length of storage time were investigated.

Generally the materials were more soluble in dilute organic acids than in distilled water. A rather gross solution of both zinc phosphate and silicate cements was incurred by storage in citric acid solutions. There was more dissolution of the materials in pH 4.0 than in pH 5.0 solutions.

The dissolution of cements tends to be minimized by tests utilizing prolonged storage in the same media. Zinc phosphate cements were markedly more soluble than silicate cements over a 1-week period when the specimens were placed in fresh solutions each 24 hours.

Submitted on February 27, 1957






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