Curriculum vitae: After studying dentistry at the Free University of Berlin, he initially worked in independent dental practice in 1985 and then moved to the Department of Dental Prosthetics at the Free University of Berlin. After receiving his doctorate in 1986, he worked as a research assistant in the Department of Orthodontics at the Free University. From 1990 to 1991, he engaged in a one-year research stay at Kyushu University in Fukuoka (Japan). Since 1991, he has been a specialist dentist for orthodontics. He pursued habilitation in 1997 at the Humboldt University in Berlin. In 2004, he accepted an appointment as Professor of Orthodontics at the Charité - Universitätsmedizin Berlin; since 2009, he has been the Director of the Department of Orthodontics, Orthodontics and Paediatric Dentistry; in 2010, he was appointed the Scientific Director of the Charité Centrum für Zahn-, Mund- und Kieferheilkunde. In 2013, he won the Award of the Ewald Harndt Medal.