A study of the volumetric setting shrinkage of some dental materials

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Abstract
The setting reaction of six dental materials has been studied by using a water dilatometer at 25° and 37°C. Where there is no water absorption during the test, the method gives reproducible values of the setting shrinkage and at the same time shows a clear physical picture of the entire setting process. This method is suitable for adaptation as a specification test for setting shrinkage and has good potential for being used as a supplementary or substitute test for initial and final set times.

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