He graduated from Istanbul University, Faculty of Dentistry, in 1995.
Between 1995-2000, he worked as a research assistant at Istanbul
University, Faculty of Dentistry, Department of Endodontics. In 2000, he
received the Dr. Med. Dent. degree. He worked at Yeditepe University,
Faculty of Dentistry from 2000 until 2014. He became an Assistant
Professor in 2002 and an Associate Professor in 2008. He began to work
at Okan University, Faculty of Dentistry in 2014 where he became a
Professor of Endodontics. Since July 2021, he has been working at
Istanbul Health and Technology University as the Director of Department
of Endodontics. He is the author of many local and international journals.
He gives courses and conferences on root canal shaping and procedural
problems in Endodontics. Dr. Kayahan is a certified member of the
European Society of Endodontology. He is the Chair of IFEA Education
Committee. He is currently the president of the Turkish Endodontic
Society and Immediate Past President of Asian Pacific Endodontic
Confederation.
