Dimitrios Mastagkas is a Medical Officer, Oral and Maxillofacial Surgeon of the Medical Corps of the Hellenic Army. Currently he holds a position as a Consultant Surgeon in 401 General Military Hospital of Athens. Dr. Mastagkas graduated Military Academy of Officers (SSAS). He is dual qualified (Medical and Dental Degree of Aristotle University Thessaloniki) and specialized in University Hospital G. Papanikolaou in Thessaloniki and KAT General Hospital in Athens. Associate doctor of "HYGEIA" Hospital. He operates daily on patients with diseases of the jaws, face and neck, practicing the most update surgical treatment.