The aim of this study was to evaluate the effect using a higher rotation speed with XP-endo Shaper (XPS) on apically extruded debris and operation time during endodontic treatment retreatment procedures. Sixty mesial roots mandibular first molar teeth were randomly assigned four groups (Initial groups: XPS used at 1000 or 3000rpm speeds Retreatment speeds). During initial procedures preweighed ...

Objectives To determine the effect of size and insertion depth of irrigation needle on the amount of apical extruded debris and the amount of penetration depth of sealer using a confocal laser scanning microscope (CLSM). Materials and Methods Twenty maxillary premolars were assigned to 2 groups (n = 10), according to the size of needle tip, 28 G or 30 G. Buccal roots of samples were irrigated...

Background : The purpose of this study was to evaluate apical debris extrusion in curved root canals using a specific file system.METHODS:50 human mandibular molars were extracted and chosen for the study, ranging between 20 40 degree curvature radii <10mm randomly assigned 2 groups (n=20) according kinematics used canal preparation ( reciprocating motion with waveone gold system) Manual Tec...

Objective(s): To compare the amount of apical debris extruded during endodontic retreatment procedures performed using H files, R-Endo Retreatment GPR files and ProTaper Universal files.
 Materials Methods: The conventional coronal access cavity was prepared for 40 extracted Mandibular Premolars. root canals were with Next Rotary till X1. Obturation done by combination Lateral Vertical Com...