Author Description

Irreversible hydrocolloid alginate impressions are among the most commonly used impression materials in dentistry. Alginate impression materials were developed in the 1930s. It is its acceptable accuracy, availability, reasonable price and facile handling, the alginate impression material is used for many purposes such as preparation of a study cast for diagnosis, fabrication of provisional prosthesis, custom trays, appliances and a definitive cast for fabrication of complete dentures in cases with undercut areas, partial denture and for maxillofacial prosthesis.