1. Department of Conservative, Endodontics and Aesthetic Dentistry, Dental Institute, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India
2. Department of Dentistry, All India Institute of Medical Sciences, Guwahati, Assam, India
3. Department of Conservative Dentistry and Endodontics, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India