Dimitrios Konstantakis is a Dentist specialized in Oral Surgery and Implants, a graduate of the University of Freiburg in Germany. In 2009, he completed his undergraduate studies in the English-speaking Dentistry program at Semmelweis University in Budapest. Concurrently, he conducted his doctoral dissertation in the field of Oral Surgery, earning the title Dr.med.dent.
He served as a conscript dentist for one year in the Air Force and subsequently worked as a general dentist in the Dental Therapy Department of the 251 General Military Hospital of Athens. Simultaneously, he also worked at his father Nikolaos Konstantakis's private dental practice.
From October 2011 to October 2014, he pursued his postgraduate studies in Germany in the field of Oral Surgery as a resident at the Department of Maxillofacial Surgery of Albert-Ludwigs Universität Freiburg under the supervision of Professor Prof. Dr. Dr. Rainer Schmelzeisen.
On 25/2/2015, following state examinations at the Landeszahnärztekammer Baden-Württemberg in Stuttgart, Germany, he obtained the title "Fachzahnarzt für Oralchirurgie" (Specialized Dentist in Oral Surgery/Oral Surgeon).