Professor of Periodontology, University of Bern

University of Bern, Switzerland

Professor, Wrocław Medical University, Faculty of Dentistry

University of Technology Sydney

Dalhousie University (Fac. Dentistry & Medicine). University of Toronto & McGill University

University of Minnesota

Professor, Wroclaw Medical University, Faculty of Dentistry

University of São Paulo

Professor - Oral & Maxillofacial Surgery, University of Sao Paulo (Ribeirao Preto)

Dokuz Eylül Üniversitesi Diş Hekimliği Fakültesi