Prof. Dr. Ivo Krejci, is Professor emeritus at the University of Geneva, Switzerland. He is past president of the University Clinics of Dental Medicine, past Director of the Department of Preventive Dental Medicine and Primary Dental Care and Chairman, Division of Cariology and Endodontology, University Clinics of Dental Medicine (CUMD). He published 409 publications in the field of dentistry and has a Google scholar citation index of 79.