INTRODUCTION The aim of this study was to compare the sealing ability of Real Seal (RS) and Gutta-percha (GP). MATERIALS AND METHODS Forty nine extracted human maxillary central incisors were used. The coronal part of each tooth was removed, the root canal was prepared using the crown down technique and apical enlargement to rotary file # 40. The specimens were randomly divided in to 3 groups...

Endodontic management of the teeth with immature apices and necrotic pulps has always been challenging. Therefore fabrication of an artificial hard tissue barrier with a biomaterial has indicated as an alternative to more traditional apexification procedure. Successful endodontic treatment needs to prevent leakage of intracanal irritants into the peri radicular tissues. On the other hand, achie...

OBJECTIVE To assess the efficacy of two sealants to preserve the apical seal after root canal preparation and cementation of posts at 24 h or 72 h after endodontic treatment. STUDY DESIGN Sixty human single-root teeth were instrumented and obturated using lateral compaction technique with EndoFill [30] or AH-Plus) [30] and were prepared in one of three ways, leaving a 3 mm gutta percha remnan...

Background: This study was conducted to evaluate the efficiency of Resilon in achieving an adequate apical seal, and to compare it with Gutta-percha. Materials and Methods: Sixty single rooted human teeth were selected and decoronated at the cement-enamel junction. The teeth were sectioned such that 14 mm of the root length remained. Working length was established, and cleaning and shaping were...

T s e d a c w m bstract his study assessed the apical leakage of ultrasonically ondensed root fillings in extremely large canals, comared to cold lateral condensation and thermoplastic ompaction. Ninety single-rooted teeth were used. In 5 teeth canals were enlarged to size 70 (large). The emaining 45 canals were enlarged to size 140 (exremely large). Each set of teeth was subdivided into hree r...

there is lack of consensus among endodontic specialists about the necessity of tug back. in this regard, we designed a study in which 44 single rooted teeth with closed apex were selected and filed up to file #50. the teeth were obturated with lateral condensation method while in half of them there was not any tug back and in the other half tug back was achieved. apical leakage was assessed by ...

INTRODUCTION Microleakage is of the causes of endodontic treatment failure. The aim of this in vitro study, was to compare the microleakage of mineral trioxide aggregate (MTA) and calcium-enriched mixture (CEM) cement apical plugs in three environments. METHODS AND MATERIALS A total of 130 human extracted single rooted teeth were collected. After decoronation, preparation of the root canal sp...

This in vitro study evaluated the sealing efficacy of three root-filling systems/techniques in preventing bacterial leakage. Instrumented single-rooted root segments were filled with (1) warm vertical compaction with gutta-percha/AH Plus; (2) single-cone technique with ActiV GP; and (3) single-cone technique with Gutta-Flow. A dual-chamber leakage model using S. mutans as a microbial marker was...

OBJECTIVE Micro-leakage, one of the major reasons for recurrent decays, may lead to uncontrollable flow of liquids, pulp inflammation and peri-apical pathology. The purpose of this in vitro study was to evaluate micro-leakage of pit and fissure sealants after using three different pit and fissure preparation techniques: 1) acid etching, 2) fissure enameloplasty and acid etching, and 3) air abra...

This study aimed to compare the apical sealing of root-end fillings performed with Lysanda (zinc oxide-eugenol paste) with radiopacifiers (iodoform or zinc oxide) and calcium hydroxide. Root-end cavities were prepared and filled with different materials, as follows: Group I - Lysanda paste with iodoform; Group II - Lysanda paste with iodoform and calcium hydroxide; Group III - Lysanda paste wit...