1. Department of Oral Medicine and Radiology, Institute of Dental Education and Research, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India
2. Department of Periodontology and Oral Impantology, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India
3. Department of Craniomaxillofacial Surgery, Institute of Dental Education and Research, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India
4. Department of Conservative Dentistry and Endodontics, Institute of Dental Education and Research, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India