1. Jose Villalobos-Tinoco, DDS, MS, visiting professor, Specialty Program in Periodontics, National University of Rosario School of Dentistry, Rosario, Argentina
2. Carlos A Jurado, DDS, MS, associate professor, Department of Prosthodontics, University of Iowa College of Dentistry, Iowa City, IA, USA
3. Ramon Alfredo Sanchez-Hernandez, CDT, dental technician, San Felipe, Mexico
4. Amira Elgreatly, BDS, MS, A.T. Still University Arizona School of Dentistry and Oral Health, Mesa, AZ, USA
5. Abdulrahman Alshabib, DDS, PhD, assistant professor, Department of Restorative Dentistry, College of Dentistry, King Saud University, Saudi Arabia
6. *Akimasa Tsujimoto, BDS, PhD, professor and chair, Department of Operative Dentistry, Aichi Gakuin University School of Dentistry, Nagoya, Aichi, Japan