Professor and head, department of prosthodontics Faculty of Dentistry, University of the Western Cape, South Africa, 1989—1999. Professor, head department prosthodontics, faculty of dentistry Medical University Southern Africa, 1999—2001. Professor, head department prosthodontics School Oral Health Science, University Witwatersrand, Johannesburg, since 2001.
Chief executive ICOBA® Technologies (Pty) Ltd, Johannesburg, since 2000. Treasurer International College Prosthodontists, San Diego, since 2005.
Chair, board trusteees Children of Fire International, 2002—2005. Vice president National Medical and Dental Association, Durban, South Africa, 1988—1994. Member of Academy Prosthodontics South Africa (executive member 2003-2005), International College Prosthodontists (treasurer since 2005).