1. Department of Prosthodontics, Saraswati Dental College and Hospital, Lucknow, Uttar Pradesh, India.
2. Department of Oral Pathology, Saraswati Dental College and Hospital, Lucknow, Uttar Pradesh, India.
3. Department of Prosthodontics, Seema Dental College and Hospital, Rishikesh, Uttarakhand, India.