الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The aim of this study was to evaluate the sealing capacity,bond strength and root fracture resistance of three
different types of root canal sealing materials. A total of 35 single-rooted human mandibular premolar teeth with
single canals were instrumented using step back technique and divided into three groups; each, and 5 as a control
group. A study of some properties of root canal sealing materials.