Davut Celik

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OBJECTIVES To determine the influence of passive ultrasonic irrigation (PUI) on apical extrusion of irrigating solution. METHODS Twenty freshly extracted maxillary and mandibular incisors with single straight root canals were instrumented with ProTaper rotary files. During final irrigation, the root canals were filled with 2.5% sodium hypochlorite (NaOCl)(More)
OBJECTIVES This study was designed to evaluate the fracture resistance of retreated roots using different rotary retreatment systems. METHODS Forty eight freshly extracted human canine teeth with single straight root canals were instrumented sequentially increasing from size 30 to a size 55 using K-files whit a stepback technique. The teeth were randomly(More)
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