Setting Expansion of Plaster of Paris: The Initial Contraction

Docking, A.R. , Chong, M.P. , and Donnison , J.A. The Hygroscopic Setting Expansion of Dental Casting Investments, Part 2, Aust. J. Dent., 52:160-66, 1948.

Jrgensen, K.D. The Hygroscopic Setting Expansion of Gypsum , Acta odont. scand., 18 :461-77, 1960.

Earnshaw, R. The Effect of Restrictive Stress on the Setting Expansion of Gypsum Bonded Investments, Aust. J. Dent., 9:169-76, 1964.

Mahler, D.B. , and Ady, A.B. An Explanation for the Hygroscopic Setting Expansion of Dental Gypsum Products, J. dent. Res. , 39:578-89, 1960.

Worner, H.K. The Effect of Temperature on the Rate of Setting of Plaster of Paris, J. dent. Res., 23 :305-08, 1944.

Farmer, C.J. , and Skinner, E.W. Effect of Relative Humidity on the Setting Time of Plaster of Paris, Northw. Univ. Bull. dent. Res., 43:12-16, 1942.

Skinner, E.W. , and Degni, F. Hygroscopic Expansion of Dental Investments , J. Amer. dent. Assn., 54:603-08, 1957.

Shell, J.S. The Effect of Longitudinal Restrictive Force on Hygroscopic Expansion , J. dent. Res., 40:287-93, 1961.

Skinner, E.W. The Science of Dental Materials, ed. 4. Philadelphia, W. B. Saunders Co., 1954, p. 34.

Wilson, G.H. A Manual of Dental Prosthetics, ed. 4. Philadelphia, Lea & Febiger, 1920, p. 72-81.

Skinner, E.W. The Role of Investment Setting Expansion in Gold Casting Techniques, Dent. Cosmos, 75:1009-18, 1933.

Jrgensen, K.D. Investigation on the Expansion Properties of Some Dental Model Plasters, Acta odont. scand., 12:24-38, 1954.

Jrgensen, K.D. Setting Expansion of Gypsum. In J. H. De Boer ET AL. (ed.). Reactivity of Solids; Proceedings, Fourth International Symposium on the Reactivity of Solids, Amsterdam, 1960. Amsterdam, The Netherlands, Elsevier Publishing Co., p. 638-42.

Earnshaw, R. , and Marks, B.I. The Measurement of Setting Time of Gypsum Products, Aust. J. Dent., 9:17-26, 1964.