Dr. Ashraf Refai has practiced endodontics for over 25 years, graduated from Cairo University and received his postgraduate diplomas from Al-Azhar University. He has been a full time staff member at Al-Azhar University Faculty of Dentistry since 1997 and has held the post of head of department of the Endodontic Department. He also teaches part time in various universities. He has extensive experience in micro endodontics and regularly gives training on this subject.