Affiliation: | 1. Department of Dental Medicine, Division of Pediatric Dentistry, Karolinska Institutet, Stockholm, Sweden;2. Department of Pediatric Dentistry, Eastmaninstitutet, Stockholm, Sweden;3. Department of Oral and Maxillofacial Surgery, Resource Centre for Rare Oral Diseases, University Hospital, Copenhagen, Denmark;4. Department of Pediatric Dentistry and Behavioral Science, Institute of Clinical Dentistry, University of Oslo, Oslo, Norway;5. Orthodontic Clinic, Huddinge, Sweden |