**About the Special Issue Editors**

**Udo Seedorf** born in Hamburg, Germany, is a Professor for the Department of Prosthetic Dentistry at the University Medical Center Hamburg-Eppendorf, Germany. He received his diploma in Molecular Biology in 1981 and his Ph.D. in 1984 from the University of Constance, Germany. He completed his post-doctoral fellowship in Molecular Cardiology at the Children's Hospital, Harvard Medical School, Boston, USA, in 1987. Subsequently, he served as Senior Scientist at the Institute of Arteriosclerosis Research at the University of Munster, Germany until 2004, as a Professor of Biochemistry and Molecular Biology at the University Medical Center Hamburg-Eppendorf from 2004 to 2006, and as Head of the Department of Epidemiology and Lipid Metabolism at the Leibniz-Institute of Arteriosclerosis Research from 2006 to 2013. In 2014 he joined the Department of Prosthetic Dentistry to conduct research on the impact of chronic oral infections on systemic diseases.

**Ghazal Aarabi** born in Tehran, Iran, is a Senior Physician and research group leader at the Department of Prosthetic Dentistry of the University Medical Center Hamburg-Eppendorf, Germany. She studied dentistry at the University of Freiburg, Germany, and completed her final examination in dental medicine in 2010. Subsequently, she became a dentist and scientific associate at the Department of Prosthetic Dentistry of the University Medical Center Hamburg-Eppendorf. She received her DDS (Dr. med. dent.) from the University of Freiburg in 2012 and was appointed Qualified Advanced Trained Specialist of Prosthodontics by the German Society of Prosthodontics and Biomaterials (DGPro). She received her MSc in Prosthodontics from the University of Greifswald, Germany in 2015, and in 2019 she was appointed Senior Physician at the Department of Prosthetic Dentistry of the University Medical Center Hamburg-Eppendorf. She is a member of the board of the Center for Health Care Research of the University Hospital Hamburg-Eppendorf, a member of the Expert Group for Dental Health and the Expert Group for Infectiology of the NAKO Health Study, as well as deputy spokeswoman for the Working Group for Dental Public Health of the German Society for Social Medicine and Prevention.
