Nikolaos Arvanitakis studied at the Athens School of Dentistry. After finishing his studies with Evangelia Arvanitakis founded his dental clinic, specialized in mobile and fixed prosthodontics.
After being dentist, he followed postgraduate three-year course in orthodontics and a five-year postgraduate course on the mobile and fixed prosthodontics.
He still gets educated, follows and regularly organizes even himself conferences and training courses for new dentists, inviting foreign professors from Europe, Canada, Japan and the USA. As part of these activities he co-organized with Prof. Dr. A. Gerber, of the University of Zurich, and his team a specialized workshop on partial and complete dentures.
In the dental clinic, he trained many young dentists.
In the last five years he is working with the son of Harris who is continuing the family tradition.