INTRODUCTION The aim of this study was to determine whether the debridement quality of the single-file F2 ProTaper instrumentation technique is comparable to a full conventional ProTaper sequence in both round and oval-shaped root canals. METHODS Fifty-four recently extracted vital lower incisors were instrumented with either a full range of ProTaper Universal instruments in rotary motion (gr...

background and aims. it is critical to have a proper knowledge of the normal anatomy of the pulp and its variations for the success of endodontic treatment. the aim of this study was to determine the canal configuration and the prevalence of c-shaped canals in mandibular first and second premolars in a north-western iranian population. materials and methods. a total of 163 extracted mandibular ...

BACKGROUND Traditional radiography is limited in its ability to give reliable information on the number and morphology of root canals. The application of cone-beam computed tomography (CBCT) provides a non-invasive three-dimensional confirmatory diagnosis as a complement to conventional radiography. The aim of this study was to evaluate the root and canal morphology of mandibular premolars in a...

A 23 year old female patient came to our Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences, Nalgonda, with a chief complaint of pain in the mandibular left second molar. The patient had no significant medical history. Subjective symptoms of prolonged sensitivity to hot and cold were present. The objective symptoms were observed as percussion sensitivity...

The C-shaped canal system is an anatomical variation mostly seen in mandibular second molars, although it can also occur in maxillary and other mandibular molars. Such variation in the root canal anatomy is uncommon in mandibular first premolars and very rare in mandibular second premolars. The C-shaped canal is so named for the cross-sectional morphology of the root and root canal. The main an...

INTRODUCTION The purpose of this study was to evaluate and compare the volume of removed dentin, transportation, and centering ability of ProTaper Next (PTN) system with and without glide path preparation by using cone-beam computed tomography (CBCT) imaging. METHODS Sixty mesiobuccal canals of mandibular first molars with curvatures of 25°-35° were divided into 3 experimental groups (n = 20)...

Aim: the aim of this study was to investigate the shaping ability of thermomechanically treated files manufactured by twisting (Twisted files) and compare it to conventional rotary system (K3, Sybron Endo, Orange, CA) in S-shaped canals, including formation of ledges, zipping, elbow, outer widening, danger zone, perforation and file deformation. Materials & Methods: Forty S-Shaped canals in res...

STATEMENT OF PROBLEM The knowledge of the pulp anatomy plays an important role in the success of endodontic treatments. PURPOSE The aim of this study was to determine the root and canal morphology of the mandibular second molar teeth in an Iranian population. MATERIAL AND METHODS One hundred intact human mandibular second molars were collected. The teeth were examined visually and the numbe...

the most difficult maxillary teeth for endodontic treatment are the maxillary first molars (mfm) due to their complex root canal anatomy. the presence of two roots and c-shaped canals in mfms has been reported in rare cases. the present case reports root canal treatment of mfm with two roots, where the palatal and buccal roots were joined together in a c-shaped configuration .

INTRODUCTION This study evaluated the prepared surface areas of oval-shaped canals in distal roots of mandibular molars using four different instrumentation techniques. METHODS Teeth were prescanned and reconstructed using micro-computed tomography (MCT) scans at low resolution (68 microm). Forty-eight molars with ribbon-shaped/oval distal root canals were selected and randomly assigned to fo...