Born in Nicosia, Cyprus, Dr. Demetrios Hadjicosti began his studies in Dentistry at the University of Athens, Greece, in 2002. In 2008, he moved to Germany, where he completed a four-year residency in Oral Surgery and was awarded the German Certificate of Specialty in Oral Surgery in 2013.

Concurrently, he completed his doctoral thesis on the computer-assisted, three-dimensional analysis of midface fractures and was awarded the title of Dr. med. dent.

Dr. Hadjicosti has since practiced Oral Surgery in various clinics and private practices in both Germany (including Dortmund, Dorsten, and Lüdenscheid) and Cyprus.

Dedicated to continuous professional development, he has attended numerous surgical and implantology workshops across Europe. In 2014, he earned a Certificate of Specialisation in the Evaluation of Cone Beam Computed Tomography (CBCT) Scans. In 2015, he completed a one-year advanced training program at Endoplus Akademie in Cologne, Germany, and received a Certificate of Curriculum in Endodontics.

Since 2017, Dr. Hadjicosti has primarily operated his private clinic in Nicosia. As of 2024, he also serves as a scientific collaborator at the Dental School of European University Cyprus.