Objectives: The present study aimed to evaluate the significance of the American Association of Endodontics (AAE) Case Difficulty Assessment on the occurrence of endodontic mishaps in an undergraduate student clinic at the Dental College at King Saud University.
Methods: All teeth endodontically treated by undergraduate dental students in their fourth year at the College of Dentistry, Girls University Campus at King Saud University over 2 years (2018-2019) were selected. Four investigators (3 dental interns and 1 endodontist) recorded the AAE case difficulty level, mishap occurrence, number of treatment visits, type of teeth, and type of instrumentation technique.