The aim of this study was to examine and compare vertical forces exerted during root canal obturation with the cold lateral condensation technique, Thermafil technique and ProTaper guttapercha. Fourty-five single-rooted permanent teeth were used in the study. All specimens were instrumented using the ProTaper rotating technique and were randomly divided into three experimental groups (n = 15 pe...

Background: Chronic apical periodontitis is potential infection with poor symptoms that are easily overlooked. Disease progession can lead to cellulitis, osteomyelitis, sinusitis, endocarditis, nephritis, arthritis, persistent fever and sepsis. In recent times, thanks advances in endodontic improving instruments, root canal antiseptics, techniques for shaping, obturation canals, treatment has a...

PURPOSE To evaluate the efficacy of different obturation techniques in root canals instrumented either by hand or rotary instruments with regard to the percentage of gutta- percha-filled area (PGFA). MATERIALS AND METHODS One hundred and sixty extracted mandibular premolars with single, straight root canals were studied. Root canals were prepared to an apical size of 30 by hand with a modifie...

BACKGROUND: Until recently the most accepted technique of doing root canal treatment stresses multiple visit procedure. Most schools also concentrated upon teaching the multi-visit concept. However, it has now been reported that the procedure of single visit treatment is advocated by at least 70% of schools in all geographical areas. It was therefore the aims of the present study to find the in...

INTRODUCTION The aim of this study was to assess the radiographic technical quality of root canal therapy performed by fifth year students of Dental School of Hamadan University of Medical Sciences from 2015 to 2016. METHODS AND MATERIALS Four hundred and seventy records of root canal therapies were evaluated. Records with graphies taken as initial, master apical file (MAF), master apical con...

introduction : there is a direct relationship between the quality of root canal obturation and success of endodontic therapy. the aim of the present study was to assess the quality of canal obturation performed by undergraduate dental students at the faculty of dentistry, mashhad university of medical sciences, mashhad, iran. materials and methods: records of 200 endodontically treated teeth fr...

Objectives: This in vitro study aimed to compare the volumes of unfilled areas oval-shaped root canals filled with five different obturation techniques after minimally invasive canal shaping using cone beam computed tomography (CBCT). Materials and Methods: 50 extracted mandibular premolars were used. Root instrumented K3 files (Kerr, USA) size #30.04. Then, samples randomly distributed into gr...

Aim: To compare the efficiency of sonic irrigation, passive ultrasonic and conventional syringe irrigation (CI) in removing pure injectable calcium hydroxide (CH) from root canals mandibular second premolars by measuring probable microleakage residual CH particles canal obturation using computerized liquid filtration (CLF). Materials Methods: Eighty instrumented were categorized into three expe...

AIM To compare the average sealer cement film thickness and the extent and pattern of sealer penetration into dentinal tubules in association with four obturation techniques in curved root canals. METHODOLOGY Mesial canals of 44 extracted mandibular molars were randomly divided among the SimpliFill, continuous wave, Thermafil and 0.04 matched taper (master cones) lateral compaction obturation...

background and aims. the single-cone technique has gained some popularity in some european countries. the aim of the present study was to compare the push-out bond strength of gutta-percha to root canal dentin with the single-cone and cold lateral compaction canal obturation techniques. materials and methods. the root canals of 58 human mandibular premolars were prepared using modified crown-do...