1. Dept. of Oral Pathology and Microbiology, G.Pulla Reddy Dental College and Hospital, Kurnool, Andhra Pradesh, India
2. Consultant Prosthodontist and Implantologist, Continental Hospitals, Hyderabad, India
3. Department of Restorative and Prosthetic Dental Sciences, Dar Al Uloom University, Riyadh, Saudi Arabia