Authors
Giorgio Fiorelli
Department of Orthodontics, University of Siena, Siena, Italy
Paola Merlo
Department of Orthodontics, University of Siena, Siena, Italy
Michel Dalstra
Section of Orthodontics, Institute of Odontology, Aarhus University, Aarhus, Denmark
Department of Orthodontics and Pediatrics, University Center of Dental Health Basel, Basel University, Basel, Switzerland
Birte Melsen
Department of Orthodontics, Hannover University, Hannover, Germany
Department of Orthodontics, University of West Australia, Perth, Australia