1. Department of Orthodontics; Medical Academy; Lithuanian University of Health Sciences; Kaunas Lithuania
2. Centre For Oral Health; School of Health and Welfare; Jönköping University; Jönköping Sweden
3. Department of Dental and Oral Pathology; Medical Academy; Lithuanian University of Health Sciences; Kaunas Lithuania
4. Department of Orthodontics; Institute for Postgraduate Dental Education; Jönköping Sweden
5. Department of Periodontology; Institute for Postgraduate Dental Education; Jönköping Sweden
6. Department of Biomaterials; Institute for Clinical Sciences; Sahlgrenska Academy; University of Gothenburg; Göteborg Sweden