1. Research Unit of Oral Health Sciences, Faculty of Medicine University of Oulu Oulu Finland
2. Department of Oral and Maxillofacial Surgery Oulu University Hospital Oulu Finland
3. Center for Life Course Epidemiology and Systems Medicine University of Oulu and Unit of Primary Care Oulu Finland
4. Medical Research Center Oulu University Hospital and University of Oulu Oulu Finland
5. Healthcare and Social Services of Selänne Pyhäjärvi Finland
6. Faculty of Medicine, Center for Life Course Health Research, Health Center of Oulu University of Oulu Oulu Finland
7. Oulunkaari Health Center Ii Finland