Abstract
As a method of determining the compatibility of the alginate impression material and the dental stone, the details of reproduced detail lines were examined, by supplementing the ISO 1563 determination standards. The reproduction of details was examined on the dental stone casts, which were produced by a combination of 4 kinds of commercial alginate impression materials and 9 kinds of commercial dental stones. The effectiveness of these new determination standards, along with the SEM image of the dental stone were studied. A more detailed evaluation was possible by the devised determination standards. Using different combinations of alginate impression material and dental stone, a desirable cast capable of reproducing detail lines of 20μm as well as a cast reproducing detail lines of 50μm partially could be obtained. The devised test for reproduction of details using a test block, which meets the requirements specified in ISO 1563, is appropriate as a method of determining the compatibility of the alginate impression material with the dental stone. An even more detailed study was found possible through determinations made using the devised evaluation standards.
