To disinfect alginate impressions, first rinse the impression under cool running water to remove any debris. Then, immerse the impression in a disinfectant solution approved for use on dental materials, such as a 1:10 dilution of chlorine bleach or a commercial disinfectant, for the recommended time (usually around 10 minutes). Ensure that the disinfectant is compatible with alginate to prevent distortion. After disinfection, rinse the impression again with water to remove any residual disinfectant before pouring it with stone or plaster.
The three common types of dental impressions are alginate impressions, polyether impressions, and silicone impressions. Alginate impressions are used for preliminary models and are easy to manipulate, while polyether impressions are known for their accuracy and stability, making them suitable for more detailed work. Silicone impressions, available in both addition and condensation types, offer high precision and are often used for final restorations and prosthetics. Each type serves specific purposes in dental procedures, depending on the required level of detail and material properties.
The material commonly used for obtaining preliminary impressions is alginate. Alginate is a flexible, hydrophilic material that sets quickly and captures fine detail, making it ideal for creating accurate impressions of dental arches. Its ease of use and affordability also contribute to its routine application in dental practices.
Alginate acid is used in preparation of medicines like Gaviscon, Bisodol, Aslione. They are used for making prosthetics, life casting and dentistry, for thickening soups and jellies.
These are derived from brown seaweed and contain calcium alginate, which turns into a sodium alginate gel when it comes in contact with wound fluid. They are available as pads or ropes.
The chemical formula of sodium alginate is (C6H7O6Na)n.
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Alginate is a natural polysaccharide derived from brown seaweed. It is composed of guluronic and mannuronic acid monomers linked together to form a gel-like structure. Alginate is commonly used in food and pharmaceutical industries for its gelling, thickening, and stabilizing properties.
These are derived from brown seaweed and contain calcium alginate, which turns into a sodium alginate gel when it comes in contact with wound fluid. They are available as pads or ropes.
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In spatulating alginate material, a spatula is used to mix the alginate powder with water in a clean mixing bowl. The spatula is then used to stir and mix the material until a smooth and consistent mixture is achieved, free of any lumps or air bubbles.