Nick Tselios was born in Athens in 1973. He entered the Dental School of Aristotle University of Thessaloniki in 1992. Upon graduation he served as a dentist in the Greek Army. After military service he continued his dental studies in USA starting from University of Michigan (UofM) in 2000. In 2003 he received his Master of Science in Prosthodontics from UofM. The next 2 years he received further training in two subspecialties of prosthodontics, Maxillofacial Prosthodontics and Implant Dentistry. He completed successfully the Maxillofacial Prosthetics fellowship program in M D Anderson Cancer Center, University of Texas at Houston in 2004 and subsequently in 2005 the implant fellowship program in Baylor College of Dentistry, Dallas, TX. In 2006, he became Assistant Professor in Prosthodontics at University of Texas Health Science Center in San Antonio, Texas.

In 2007, he continued his academic career in University of Nebraska Medical Center, Omaha, Nebraska where he was appointed Assistant Professor of Dental Oncology in the Head and Neck Surgery department. During the above 7 years, he enjoyed academic life by publishing, lecturing and participating in international conventions. In 2007 he returned to Athens. Starting in 2007 and upon today he is a scientific collaborator in the Prosthodontic department of the Dental School, University of Athens. Starting December 2013, he is the prosthodontist in Eurodentica.