In which of the following materials, moisture loss has to be taken care of?
Correct Answer: Alginate impression
Description: Alginate impressions can distort quickly if they are allowed to gain or lose moisture, so the impression is wrapped in wet paper towels to serve as a humidor.
Preoperative PVS impressions do not need to be wrapped. The preoperative impression is placed aside for later use in forming the temporary restoration.
Sturdevant operative dentistry 7th Edition, Page No:120
Category:
Dental
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