A new translucent cement, the product of the reaction between ion‐leachable glass and an aqueous solution of polyacrylic acid, is described. Its properties, with particular reference to dental applications, are reported and a proposed setting mechanism is advanced.
The interaction between polyacrylate ions and hydroxyapatite was examined using extraction techniques and infra-red spectroscopy. These studies have shown that polyacrylate ions become irreversibly attached to the surface of hydroxyapatite by displacing existing phosphate ions. The mechanism is not one of simple ion exchange, since calcium ions are displaced by the phosphate ions.
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