Professor of School of Dentistry, University of Michigan

Columbia University

Professor, Loma Linda University

demonstrator at operative department

Università Federico II di Napoli

Universidade Positivo

Assistant Professor, University of Strasbourg

Assisstant professor of prosthetic scince,King Saud university

Professor of Operative Dentistry at Aristotle University of Thessaloniki Greece

Clinical Professor in Operative Dentistry, Chair of Esthetic & Operative Dentistry Dept …