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What happens when an Alginet impression is exposed to open air for an extended period of time?

It becomes too stiff to use

It absorbs moisture

Syneresis

When an Alginet impression is exposed to open air for an extended period of time, a process called syneresis occurs. Syneresis is the phenomenon where the gel structure of the impression material contracts and releases water, leading to a loss of its original shape and integrity. This reaction can negatively affect the accuracy of the impression, as the deformation may result in distortion when trying to create a replica of the dental structures.

Alginet materials are designed to retain moisture, but when they are left exposed to air, they begin to dehydrate, which contributes to syneresis. It's essential to store alginate impressions in a humid environment or pour them soon after taking the impression to prevent this condition and ensure the best results in dental procedures.

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