1. Institute of Dentistry, University of Eastern Finland; Bachelor of dentistry; Kuopio Finland
2. Oral and Maxillofacial Department; Kuopio University Hospital; Kuopio Finland
3. Research Unit of Oral Health Sciences, Faculty of Medicine; University of Oulu; Oulu Finland
4. Medical Research Centre; Oulu Finland
5. Department of Oral and Maxillofacial Surgery; University Hospital; Oulu Finland
6. Department of Biomaterials Science and Turku Clinical Biomaterials Centre - TCBC; Turku Finland
7. Institute of Dentistry; University of Turku; Finland Turku Finland
8. Welfare Division; City of Turku Finland
9. Health Centre of Kuopio; Kuopio Finland
10. Department of Oral and Maxillofacial Diseases; University Hospital; Kuopio Finland