سابقه و هدف: هدف از تحقیق حاضر مقایسه تأثیر سه روش ایجاد

Introduction & Objective: The success of root canal therapy depends on the ability to establish and maintain an apical seal, therefore, it is important, that post space preparation do not disrupt the integrity of the apical seal. The purpose of this study was to compare the effect of immediate versus delayed post space preparation on the apical seal using AH26 and Dorifil sealers. Materials...

ABSTRACT  By restoration of pulpally exposed teeth with root canal therapy edentulous areas and neighbouring teeth displacement can be avoided. Prefabricated posts may be used for crown restoration of these teeth. For the preparation of root canal for post placement, Gutta percha should be removed by means of mechanical, thermal and chemical agents. To study the amount of apical leakage in vit...