Endodontic shaping can lead to canal and apical anatomical alterations, which may compromise the outcome of root treatment. The objective this systematic literature review is assess whether use martensitic endodontic instruments result in less transportation compared austenitic during therapy. A search was conducted on PubMed, Ovid MEDLINE, Web Science. inclusion criteria were vitro studies com...

Because the swallowing of endodontic instruments has been the subject of relatively few articles, dentists may not be aware of the medical and legal complications of such an occurfence. Search of the literature during the past 20 years showed that many of these swallowed instruments pass through the patient 's digestive tract, x̀ However, there are a number of reported cases in which this does n...

The aim of this study was to examine the lifespan or number of cycles to failure of tapered rotary nickel-titanium (Ni-Ti) endodontic instruments. Simulated root canals with different curvatures were used to determine a relation between canal curvature and instrument lifespan. Using a novel mathematical model for the deformation of pseudoelastic Ni-Ti alloy, it was shown that maximum stress nee...

OBJECTIVE To evaluate root canal enlargement following mechanical shaping using 2 nickel titanium rotary systems. MATERIAL AND METHODS Forty single-rooted teeth were immersed in resin and sectioned perpendicular to the long axis at 4, 8, and 12 mm from the apex. Digital capture of sections was performed before and after canal instrumentation using Mtwo and BioRace instruments. The area increa...

OBJECTIVES The aim of the present study was to determine radiographically the different reasons and problems of endodontic treatment failure. METHODS The periapical radiographs of 100 patients with one hundred teeth (130 root canals) were examined to identify the problems and failures of endodontic treatment. The various reasons of failure that is under filling, poor filling, over filling and...

Yared G. Canal preparation using only one Ni-Ti rotary instrument: preliminary observations. International Endodontic Journal. Aim To describe a novel canal preparation technique using only one Ni-Ti rotary instrument. Summary In this novel technique, the canal is negotiated to the working length with a size 08 hand file. Then, the canal preparation is completed with an F2 ProTaper instrument u...

INTRODUCTION To obtain essential information in clinical endodontics, cone-beam computed tomographic (CBCT) imaging can be used in all phases of treatment including diagnosis, treatment planning, during the treatment phase, and through post-treatment assessment and follow-up. The purpose of this article was to review the use of CBCT imaging in the diagnosis, treatment planning, and assessing th...

The main priority of rubber dam isolation was endodontic isolation against fluids and microorganisms in the oral cavity. Added to this, is the need to protect the patient against accidental aspiration or ingestion of small endodontic instruments. According to court ruling in many countries, such occurrences are considered avoidable, and can be attributed to negligence on the part of the dentist...