1. School of Dental Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian, 16150 Kota Bharu, Kelantan, Malaysia
2. Department of Restorative Dentistry & Endodontics Faculty of Dentistry, University of Puthisastra, Phnom Penh 12211, Cambodia
3. Department of Conservative Dentistry & Endodontics, Saveetha Institute of Medical and Technical Sciences University, Chennai, 600077 Tamil Nadu, India