Professor Ioannis K. Karoussis graduated from the Dental School of Athens, Greece, where he also achieved his Master’s degree in Oral Biology. He specialized in Periodontology and Implantology at the Universities of Athens, Greece and Bern, Switzerland, where he also completed his doctoral thesis. He has served as coordinator of the Postgraduate clinic of Periodontology at the University of Athens, as Editor of the Journal Odontostomatological Progress and President of the Hellenic Society for Odontostomatological Research. His private practice in Athens specializes in periodontics and implant dentistry. He has received awards for his research on peri-implantitis and has authored more than 100 papers in peer-reviewed journals as well as four textbooks in the Greek language.