The professional behaviour of future dentists is an important topic in dental curricula. Aspects of professional behaviour are, among other things: being respectful to patients, putting the interest of the patients first, reliability, integrity, and knowing one's professional limitations and acting according to them when treating patients. Throughout the curriculum students receive feedback on their functioning with regard to professional behaviour and are also examined on those points. At the programme at the Academic Centre for Dentistry Amsterdam, experience has been gained in recent years in addressing and evaluating (un)professional behaviour among students.