The powder contains sodium and potassium salts of alginic acids. After the mixing, dentists get a paste that is placed in a tray for impressions. The alginate material is actually a powder, that is mixed with water. Other uses include a mold for inspection, diagnosis and planning, mold from opposing teeth, duplicate molds and more. Partial dentures with clasps are also often based on an alginate impression. Dental arches with undercuts are also a strong indication of an alginate impression. Another widespread use is for patients that produce a lot of saliva. Uses:ĭentists usually use alginate materials to take preliminary impressions for dentures. It is not painful, and the patient doesn’t feel discomfort. The procedure is very simple and lasts for a short time. Also, a lot of dentists tend to use them with patients that have an excessive saliva flow and alveolar bones with undercuts. The most common uses of the alginate impression are to get a study model, getting an impression from opposing teeth, for bleach trays, preliminary impressions for partial and total dentures, orthodontic models, preliminary impressions for crowns, bridges and more. From there on, they use them to plan further treatment or start a certain restoration. They use that, to get a mold which will replicate the exact situation in the mouth. With the impression, the dentist gets a negative copy from the oral cavity of the patient. It is a regular part of many dental procedures. Alginate is a special material that belongs to the group of irreversible hydrocolloids.
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