Preparation and Characterization of Hydroxyapatite Based on Human teeth with Various of Calcination

Human teeth based on hydroxyapatite (HAp) with vary of calcination temperature has been prepared at the temperature of 650°C, 800°C, 950°C, 1100°C, and 1250°C for 4 hours. Fourier Transform Infrared (FTIR), X-Ray Diffraction (XRD), and Scanning Electron Microscope-Energy Dispersive X-Ray (SEM-EDX) were used to analyze the characteristics of HAp. The spectra FTIR of HAp confirmed the existence of various functional groups such as phosphate, hydroxyl, and carbonate. The XRD results revealed that the calcination temperature had affected the HAp phase. There were diffraction peaks of HAp with the impurity of tricalcium phosphate (TCP). Crystallite size of HAp tended to increase by increasing calcination temperature (32,695 to 40,950 nm). Morphology of HAp changed from irregular to regular form with the increase of calcination temperature that indicated there was calcination increase crystallinity in HAp sample. In addition, EDX results pointed to the presence of Ca and P with the Ca/P ratios from 1,55 to 1,68. Therefore, HAp based human teeth were potential to be used for bone graft application.