background: one of the important sites for extrapulmonary tb involvement is the skeleton. tuberculous spondylitis (pott’s disease) comprises 50-70% of the skeletal tuberculosis. methods: in this case series study, we prospectively investigated the result of anterior surgery alone (anterior debridement, fusion and instrumentation) in the patients with spinal tuberculosis. the patients with immat...

objectives: during root canal preparation, apical extrusion of debris can cause inflammation, flare-ups, and delayed healing. therefore, instrumentation techniques that cause the least extrusion of debris are desirable. this study aimed to compare apical extrusion of debris by five single-file, full-sequence rotary and reciprocating systems. materials and methods: one hundred twenty human mandi...

introduction: in this experimental study, the amount of smear layer (sl) remnants in curved root canals after chemomechanical instrumentation with two engine-driven systems or hand instrumentation was evaluated. methods and materials: forty-eight mesiobuccal roots of mandibular first molars with curvatures ranging between 25 and 35 degrees (according to schneider’s method) were divided into thr...