Combined Torsional and Cyclic Fatigue Resistance in Rotary Endodontic FilesPO80Bostrom, B.Shen, Y.Coil, J.Hieawy, A.Author informationUniversity of British Columbia, British Columbia*— Abstract PresenterJournal of Endodontics 50(5):p e28, May 2024.Copyright ©2024The American Association of Endodontists