Comparative analysis of two electronic apex locators in working length determination using stainless steel and nickel titanium hand files in permanent teeth with simulated apical root resorption - An in vitro study Journal title: International Archives of Integrated Medicine Authors: Haneen Al Otheem, Swati Srivastava, Shahad Alogayyel, Maymonah Abdurhman Alghadouni Subject(s):