Chaniotis Antonis graduated from the University of Athens Dental School, Greece, in 1998. In 2003, he completed the three-year postgraduate program in Endodontics at the University of Athens Dental School.

Since 2003, he has owned a private practice limited to microscopic Endodontics in Athens, Greece. For the past ten years, he has served as a clinical instructor affiliated with the undergraduate and postgraduate programs at the University of Athens, Athens Dental School, Endodontic department, Greece.

In 2012, he was awarded the title of Clinical Fellow Teacher at the University of Warwick, Warwick Dentistry, UK. He lectures nationally and internationally and has published articles in local and international journals.

In 2015, he introduced a novel technique for the management of highly curved root canals. In 2022, he was invited to publish a narrative review in the International Endodontic Journal about the management of curved and calcified canals. This review is among the five most downloaded papers of the International Endodontic Journal.

He currently serves as a member of the Hellenic Association of Endodontists (ESE member society) and as the country representative of the Hellenic Association of Endodontists in ESE. He is also a certified member of the European Society of Endodontology (ESE) and an international specialist member of the American Association of Endodontists (AAE).

Recently, he was elected as the European Society of Endodontology certified members' representative.