COMPARATIVE EVALUATION OF DENTINAL MICROCRACK FORMATION FOLLOWING ROOT CANAL PREPARATION WITH HAND K-FILES AND THREE CONTEMPORARY NITI ROTARY SYSTEMS: AN IN VITRO STUDY
Background: Root canal instrumentation may generate dentinal microcracks that weaken the root and increase susceptibility to vertical fracture. This study compared dentinal defects produced by stainless-steel hand K-files and three contemporary nickel–titanium rotary systems. Methods: Seventy-five extracted single-root...