1. Assistant Professor, Department of Conservative Dentistry and Endodontics, Melaka-Manipal Medical College, Malaysia
2. Registrar Endodontist, Central Security Hospital, Buryadah Al-Qassim, Saudi Arabia
3. Senior Lecturer, Department of Conservative Dentistry and Endodontics, Government Dental College, Thiruvananthapuram, Kerala
4. Assistant Professor, Department of Conservative Dentistry and Endodontics, Malaka-Manipal Medical College, Malaysia