ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 55, (2) 123 - 126 (2011)


SYNTHESIS AND CHARACTERIZATION OF HYDROXYAPATITECALCIUM HYDROXIDE FOR DENTAL COMPOSITES
 
Ansari Mojtaba, Naghib Seyed Mortenza, Moztarzadeh Fathollah, Salati Amir
 
Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran

Keywords: Hydroxyapatite, Ca/P ratio, pH, Calcium hydroxide
 

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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