Detail Inovasi Perguruan Tinggi

Judul: Synthesis And Characterization Of Calcium Hydroxide From Indonesian Limestone As Endodontic Intracanal Medicament
Perguruan Tinggi: Universitas Jenderal Achmad Yani
Jenis/sdm: dosen/0409098005

Tahun: 2019

Calcium hydroxide [Ca(OH)2] has been the gold standard for endodontic medicament as

inter-appointment dressing, due to its ability to act as antimicrobial agent and to promote hard tissue

healing. The main mechanism of this material is the release of Ca2+ and OH- ions through its

vehicle, providing high alkaline pH. Indonesia, has many potential resources, namely limestone

(CaCO3), that can be utilized as raw material for Ca(OH)2. The objective of this present study is to

investigate the synthesis and characterization of Ca(OH)2 from Indonesian limestone as an

endodontic intra-canal medicament. Limestones were taken from Palimanan area in West Java,

Indonesia. CaCO3 was calcined at 900°C for 4h resulting CaO powder. CaO powder was mixed

with distilled water using a rotary stirrer for 24h and produce Ca(OH)2 paste. The Ca(OH)2 paste

was dried at 80°C, then crushed using a mortar and pestle to obtain Ca(OH)2 powder. The powder

samples were thus subjected for characterization by X-Ray Diffraction (XRD) and Fourier-

Transform Infrared (FTIR) Spectroscopy. The XRD patterns revealed that the high peak of Ca(OH)2

crystallinity was successfully achieved in this study. The FTIR spectroscopy also showed bands at

3640 cm-1 which belongs to OH- stretching vibration of the Ca(OH)2. The results indicate that the

synthesis of Indonesian limestone as Ca(OH)2 by this method was attained. Indonesian limestone is

a potential raw material that can be used as a precursor for synthesis of Ca(OH)2 as an endodontic