What is Algin Acid Salt in Dentistry?

Watch Dental Video about Algin Acid Salt

Salts from algin acid are generally called alginate.

In dentistry, alginates are used for impression materials. Alginate is mixed with water at a certain consistency. In dental practice it is then used in the production of teeth and jaw impressions.  It has no harmful side effects and allows for a high level of precision and attention to detail in the impressions. The powder can be mixed by hand, alternatively, special alginate mixers can be used.

Accurate processing is key when using alginates. After removing from the mouth, the impression should rest for a few minutes and should then be processed immediately by pouring it with plaster. Prior to pouring the plaster, the impression needs to be thoroughly cleaned.

Zahnabdruck aus Alginat

alginate imprint

Afterwards, the plaster is poured into the impression through a vibrator that reduces air bubbles in the plaster model.  Finally, the impression is placed on a plaster pedestal and left alone for the remainder of the hardening process. When the plaster has completely hardened, the impression spoon , including the alginate, is removed from the plaster model. This is how the technician gets an impression of your jaw condition and can produce an accurate denture.

Long transport, inappropriate storage, and/or inaccurate alginate processing can lead to  a shift in the impression, and subsequently, the plaster model. Loose crown edges, and/or time consuming grinding are the inevitable consequences.  We will discuss this further in the video entitled "Problems with Dental Impressions".

This post is also available in: German

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