The discussion was held Under the supervision of Prof. Dr. Ahmed Hamdy ,Professor & head of fixed prosthodontics department , Faculty of Dentistry, MSA University– (Principal Supervisor) Dr. Mohamed Mokhtar Lecturer of fixed prosthodontics Department, Faculty of Dentistry - MSA University – (Assistant Supervisor).

The referee Committee includes Prof. Gilan Algendy is Professor of fixed prosthodontics Department, Faculty of Dentistry - Cairo University Prof. Nadia Fahmy Professor of fixed prosthodontics Department, Faculty of Dentistry - MSA University