1. Department of Restorative Dentistry, Periodontology, Endodontology and Preventive and Pediatric Dentistry University Medicine Greifswald Greifswald Germany
2. Institute of Health Services Research in Dentistry University of Münster Münster Germany
3. Institute for Community Medicine University Medicine Greifswald Greifswald Germany
4. German Center for Cardiovascular Research (DZHK), Partner Site Greifswald Greifswald Germany