Abstract
Hydroxyapatite (HAP) dissolution effected by calcium complexing ions was studied. The efficiencies of various complexants on the dissolution of HAP at 37°C and pH=7.4 were compared. This effect was also examined in correlation with parameters such as: the concentration of the complexant solution, the volume of the complexant solution, dissolution times and the perfection of crystals structure. EDTA has been found to be superior complexant to others. The significant dissolution time occurs between 1 and 3 min and as the volume and concentration of the complexant solution increase, there is a significant increase in the efficiency of dissolution of HAP.
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