![]() ![]() It seems that such simplification is indeed useful especially for practitioners with less experience: an in vivo study has shown that teaching an abbreviated technique for producing a complete prosthesis (with just one alginate impression instead of two) in a university surgery resulted in a lower number of appointments being needed to deliver the finished prosthesis without any increase in the number of post-fitting adjustments or modifications. In normal clinical work, many dentists have adopted simplified procedures. ![]() Some practitioners, however, also find them useful as the final impression material for removable prostheses. In the vast majority of cases, alginates are used for preliminary / primary impressions and for temporary prostheses or models. Zhermack’s Neocolloid has a long setting time to permit proper functionalisation of the frenums, essential to identifying the limits of future removable prostheses /custom impression trays). finally, they generally have short setting times, though types offering extended times are also available (e.g.secondly, they are perfectly compatible with the gypsum used for preparing the models on which prostheses are made.first of all, they are hydrophilic and therefore perform well in contact with water and oral mucosa which are often wet with saliva.Physico-chemical characteristics of the alginatesįurthermore, since alginates are irreversible hydrocolloids formed from the sodium and potassium salts of alginic acid, they also have certain useful chemical and physical properties: No special equipment is needed and the materials are inexpensive and well tolerated by most patients. They are essential in daily clinical procedures in all branches of dentistry that require collaboration between dentist and dental technician.Īlginate impressions are extremely quick and easy to take, and mixing is simple and rapid too. Alginates are the most frequently used of all impression materials in dental practices. ![]()
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