1. University Research Priority Program "Dynamics of Healthy Aging" University of Zurich Zurich Switzerland
2. Institute of Biometry and Clinical Epidemiology Charité – Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
3. Clinic of General, Special Care and Geriatric Dentistry, Center of Dental Medicine University of Zurich Zurich Switzerland
4. Department of Prosthodontics and Materials Science, Gerodontology Section University of Leipzig Leipzig Germany