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Dental Materials, Cement, Glass Ionomer

Definition : Cement dental materials, whose main components are an aqueous polyalkenoic acid and a glass component, designed to produce a mechanical interlocking effect upon hardening inside the mouth. These cements usually consist of a powder (an acid-soluble calcium fluoro-aluminosilicate glass) and an acid liquid (e.g., tartaric, itaconic, maleic) that are mixed together in a viscous paste immediately before use, setting to a hard mass. These cements should be resistant to dissolution in oral fluids, and non-irritating to pulp and gingiva. Glass ionomer cements have anticariogenic properties due to the release of fluoride; they have proper thermal and chemical resistance in the oral environment. Metal-reinforced and resin modified glass ionomer cements are also available. Glass ionomer cements are used in dentists' offices as luting (cementing) agents, as intermediate bases under restorations and for restoring pits and fissures.

Entry Terms : "Resins, Adhesive, Orthodontic Bracket" , "Orthodontic Cement" , "Adhesive Resins" , "Orthodontic Bracket Adhesive Resins" , "Orthodontic Adhesives" , "Cement, Orthodontic" , "Adhesives, Orthodontic" , "Cement, Dental, Glass Ionomer"

UMDC code : 16704

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