Achieving apical foramen patency through surgical maneuvers during the biomechanical preparation of root canals is a goal sought by several schools. The aim of this study was to evaluate the deformation of the foramen as a result of using stainless steel hand files and nickeltitanium rotary instruments for achieving patency. Forty recently extracted dental roots with single canals were calibrat...

Introducción: la remoción completa de materiales obturación y dentina contaminada del conducto radicular durante el retratamiento endodóntico puede influir en aparición agudización endodóntica. Objetivo: establecer frecuencia endodóntica posterior al dientes anterosuperiores con diferente longitud apical. Material métodos: se eligieron 33 casos fracaso para este estudio. Según apical inicial, l...

The pattern of dentine removal during endodontic instrumentation is influenced by many factors including the interfacial forces applied by the operator. The aim of this study was to investigate the influence of operators and different sizes and types of instruments on the magnitude of these interfacial forces. Single-rooted teeth were mounted on a cantilevered aluminium beam to which two pairs ...

The aim of this paper was to evaluate a possible correlation between obturation limits and leakage. Thirty-six extracted human mandibular incisors were used, characterized by straight and single canals, non-anatomical complexities, absence of previous endodontic treatment, complete root formation and patent foramen. For standardization of the specimens for the leakage analysis, foraminal instru...

The aim of this study was to assess the effects of intracanal irrigation with sodium hypochlorite (NaOCl) and ethylenediaminetetracetic acid (EDTA) prior to calcium hydroxide medication on the compressive strength of root dentin. Forty-eight roots with single and straight canals were instrumented with a crown-down technique using Flexofile files and Gates Glidden burs, under 0.9% sodium chlorid...

The fundamentals of root canal therapy include thorough cleaning, suitable shape, and total filling. There are numerous tools at our disposal to help us achieve these goals. A complicated range files, filling techniques, modern materials have been designed speed up the process, increase its dependability, enable clinician properly treat challenging patients intricate anatomies. Hand instruments...

BACKGROUND Sodium hypochlorite (NaOCl) is the most widely used endodontic irrigant because of its excellent antimicrobial, organic tissue dissolving, and lubricating properties. However, it is highly cytotoxic to the periapical tissues. AIM This study evaluated in vitro the extrusion of 5.25% NaOCl through the apical foramina of mesiobuccal (MB) root canals of maxillary first molars in two ex...

Correction to: An Ex vivo Analysis of Apical Transportation in Root Canals Prepared with BT Race Rotary and Hand K-Flexofile by Cone Beam Computed Tomography   Abbas Mesgarani1, Azadeh Zakariaie2, Azam Haddadi Kohsar1, Sina Haghanifar3, Jamshid Yazdani Charati4, Arman Ebrahimi5   1 Assistant Professor, Department of Endodontics, Faculty of Dentistry, Mazandaran University of Medical S...