PMID: 9663110Jul 15, 1998Paper

A review of preweighed, packaged die stone versus bulk die stone use in a dental school

Journal of Prosthodontics : Official Journal of the American College of Prosthodontists
R B PriceR A Bannerman

Abstract

This study compared the quantity of preweighed, packaged die stone use to bulk die stone use by dental students. Starting in September 1994, all the bulk die stone was removed from the dental clinic, and only preweighed packages of die stone (Silky-Rock, Whip Mix) were available to students. At the end of August 1995 and August 1997, the amount of preweighed die stone used by the students was determined and compared with the amount of bulk die stone (DieKeen, Modern Materials) used during the period of September 1993 to August 1994. Between September 1994 and August 1997, the students used 42% less per annum of the preweighed, packaged die stone than the previous annual use of bulk die stone. The laboratories were much cleaner when the preweighed packages were used, and fewer cleaning staff were required. The environment was also cleaner for the laboratory staff, who used to fill the bulk containers with gypsum products. Students used 42% less die stone per annum when using the preweighed packages.

References

Nov 1, 1969·The Journal of Prosthetic Dentistry·R G Vig
Mar 1, 1983·Journal of Biomedical Materials Research·J A von Fraunhofer, R R Spiers

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