Petros Theodorakis was born in Chania, Crete. He lived in Corinth and Heraklion, where he completed elementary school, and later graduated from the First High School of Chania. He studied dentistry abroad, in Timișoara, Romania.
He practices general dentistry, with a specialization in prosthodontics and aesthetic dentistry. His research and clinical work have been published in various scientific journals, and he has participated in numerous seminars and hands-on continuing education programs.
He is married to Xanthi Mitropoulou, and they have three children, Dimitris, Litsa, and Giorgos. Dr. Theodorakis is a member of the Chania Dental Association, the Stomatological Society of Crete, and the Hellenic Prosthodontic Society.