TY - BOOK AU - Mansour,Khaled Mohamed Tawfik AU - Diab,Alaa AU - Abo El-Nasr,Hend TI - A comparative study of the effect of canal preflare on fracture rate of Ni-Ti rotary files, canal transportation and canal cleanliness: (An in vitro study) U1 - 617.624 21 PY - 2011/// KW - Endodontics N1 - Supervisors: Alaa Diab, Hend Abo El-Nasr; Thesis (M. Sc.)-Cairo University, Faculty of Oral and Dental Medicine, 2011; Includes bibliographical references (pages 118-133) ER -