This article aims to explore the importance of multimethod research in assessing performance nickel-titanium (NiTi) endodontic instruments. The review highlights limitations relying solely on measurements obtained through a narrow set mechanical tests and acknowledges challenge replicating real-world working conditions controlled laboratory settings. While achieving perfect simulation may be di...

Sealer placement techniques have not been examined in teeth with curved canals prepared with Lightspeed instruments. Three traditional methods of placing sealer were studied, using 45 extracted human single-rooted teeth, divided into 3 groups of 15. Root canal preparations were made with Light-speed nickel-titanium, engine-driven instruments. AH26 sealer was applied with either K-file, lentulo ...

OBJECTIVE The changes in fatigue resistance of nickel-titanium rotary ProFile instruments after clinical use for shaping 10 curved molar root canals were evaluated in this study. STUDY DESIGN Twenty-five sets of files #20, #25, and #30 and tapers .04 and .06 were divided into 2 groups, one with 10 sets of new files that were tested in a fatigue test bench device as a control. The other, exper...