1. Postgraduate student, Department of Prosthodontics & Crown & Bridge, Vananchal dental college& hospital, Gharwa, Jharkhand
2. Consultant Oral and Maxillofacial Surgery, Patna, Bihar.
3. Senior lecturer, Department of Prosthodontics & crown and bridge, Kalka dental college, Meerut, Uttar Pradesh, India.
4. Senior Lecturer, Department of Prosthodontics & crown and bridged. Dr. B. R. Ambedkar institute of dental sciences and Hospital. Patna, Bihar.
5. Postgraduate student, Department of Prosthodontics & Crown & Bridge, Vananchal dental college& hospital, Gharwa, Jharkhand.
6. Postgraduate student, Department of Peridontology, Vananchal dental college& hospital, Gharwa, Jharkhand.