Ceramics-Silikáty 55, (2) 123 - 126 (2011) |
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SYNTHESIS AND CHARACTERIZATION OF HYDROXYAPATITECALCIUM HYDROXIDE FOR DENTAL COMPOSITES
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Ansari Mojtaba, Naghib Seyed Mortenza, Moztarzadeh Fathollah,
Salati Amir
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Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
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Keywords: Hydroxyapatite, Ca/P ratio, pH, Calcium hydroxide
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In this work hydroxyapatite was precipitated from calcium hydroxide and phosphoric acid. Calcium hydroxide forms in
addition to hydroxyapatite in samples with calcium to phosphorus ratio more than the stoichiometric one (Ca/P = 1.67). The
effect of changing the pH of the precipitation solution was investigated. Changing the pH of solution had no effect on the
amount of compounds formed in the structure. In contrast, an increase in Ca/P ratio increases the total amount of calcium
hydroxide which is suitable for dental composite application. |
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