The most popular form of alginate is
in powdered form. The paste form has shorter gelation time. When mixed powdered alginate with water at around 1:1: the mixture becomes a gel, that is set to a rubber-like material. The working time is varied and can be controlled by the manufacturers or the dentist. It is non-toxic and non-irritant material.
Alginate is used for taking impression (imprint) of the dental arches for orthodontic model, bleaching trays, mouth guards
, and study models.
Alginate powder contains:
- Sodium alginate
- Calcium sulfate
- Trisodium phosphate
- Diatomaceous earth
- Zinc oxide
- Potassium titanium fluoride
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