Advancing digitalization and technologic progress have brought about a revolutionary change in orthodontics. However, even though algorithms and automated processes are increasingly coming to the fore, it should not be forgotten that even the most sophisticated treatment equipment cannot function without adequate patient cooperation. However, young people today are facing new challenges. In particular, the increasing use of social media has eroded the persistence and patience of young people for lengthy processes. This change often has an impact on cooperation during orthodontic treatment. Inadequate adherence is also a growing problem in other medical specialties. In 2003, the World Health Organization published a report in which experts from various disciplines analyzed the reasons for inadequate adherence to long-term treatment. This review summarizes this report in an orthodontic context. It crystallizes the importance of good communication between practitioners and patients in order to promote understanding, motivation, and active cooperation. After all, despite all digital progress, even today it is impossible to achieve a perfect treatment result without adequate adherence. Keywords: cooperation, adherence, compliance, communication