Abstract
Hydroxyapatite is a constituent compound of tissues in the body such as bones and teeth that can be synthesized from eggshells that have high calcium content. Hydroxyapatite is biocompatible so it can be used as a dental implant. The purpose of this research is to utilize eggshell waste to be synthesized into hydroxyapatite material as base material of dental implant. Hydroxyapatite was synthesized from eggshell nanoparticles calcium oxide (CaO) by mixing HCl, NH3 and Na 3 PO 4 solutions using precipitation method. The synthesis was carried out by 4 samples with the molarity of Na 3 PO 4 4 varied samples ie 4M, 5M, 6M and 7M then calcined at 750 ° C for 4 hours. The results of XRD characterization, showed that the highest Hydroxyapatite content was found in the addition of Na 3 PO 4 5M ie 58 wt%. The crystalline morphology of SEM (Scanning Electron Microscopy) characterization shows that the hydroxyapatite sample has a regular structure and uniform crystal size, while the EDS analysis shows the most dominant CaO content with a grade of 55.91%. Article DOI: https://dx.doi.org/10.20319/mijst.2018.42.4045 This work is licensed under the Creative Commons Attribution-Non-commercial 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
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