1. Independent Researcher, Oakville, Ontario, Canada
2. Department of Periodontology, Subharti Dental College and Hospital, Swami Vivekanand Subharti University, Meerut, Uttar Pradesh, India
3. Department of Prosthodontics, King George`s Medical University, Lucknow, Uttar Pradesh, India
4. Department of Prosthetic Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
5. Department of Oral and Maxillofacial Surgery, College of Dentistry, King Khalid University, Abha, Saudi Arabia