Impression plaster is:
Correct Answer: Less compressive than alginate
Description: IMPRESSION PLASTER
Impression plaster is a β-calcium sulfate hemihydrate used at a water/powder ratio of approximately 0.5 to 0.6. Its fluidity makes it suitable for making impressions of soft tissues in the uncompressed state, a characteristic of mucostatic impression material.
Key concept:
Impression plaster is less compressive than Alginate.
Ref: Phillips 12 ed page no 177
Category:
Dental
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