Dental plaster

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Dental plaster


A fine, highly purified Plaster of Paris available from dental supply companies. The plaster sets completely within one hour, but may be removed with water. Dental plaster has been used for repairing ceramics, mending gesso-based frames, and casting replacement pieces.

Synonyms and Related Terms

gypsum cement; Permastone; Hydrocal

Physical and Chemical Properties

Soluble in water.

Resources and Citations

  • Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
  • Tom Rowland, Noel Riley, A-Z Guide to Cleaning, Conserving and Repairing Antiques, Constable and Co., Ltd., London, 1981