1. Department of Prosthetic Dentistry, College of Dentistry, King Khalid University, Abha, Saudi Arabia
2. College of Dentistry, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
3. Department of Prosthodontics, Career Post Graduate Institute of Dental Sciences, Lucknow, Uttar Pradesh, India
4. Department of Dental Technology, College of Applied Sciences, King Khalid University, Abha, Saudi Arabia
5. Department of Prosthodontics, Buddha Institute of Dental Sciences, Patna, Bihar, India
6. Department of Oral Pathology, Career Post Graduate Institute of Dental Sciences, Lucknow, Uttar Pradesh, India