PURPOSE This study was performed to compare the metal artifacts from common metal orthodontic brackets in magnetic resonance imaging. MATERIALS AND METHODS A dry mandible with 12 intact premolars was prepared, and was scanned ten times with various types of brackets: American, 3M, Dentaurum, and Masel orthodontic brackets were used, together with either stainless steel (SS) or nickel titanium...

AIMS (i) To carry out meta-analyses to quantify the influence of the clinical factors on the efficacy of primary root canal treatment and (ii) to identify the best treatment protocol based on the current evidence. METHODOLOGY The evidence for the effect of each clinical factor on the success rate (SR) of primary root canal treatment was gathered in three different ways: (i) intuitive synthesi...

The role of magnetic resonance imaging (MRI) in children presenting with acute non-traumatic hip pain was evaluated prospectively. Hip MRI was performed in addition to standard investigations (arthrosonography +/- hip radiographs) in 50 children presenting to the accident and emergency department of a paediatric hospital. MRI was performed on an open 0.23T system and comprised gradient echo T1 ...

Background: Leiomyomas represent the most common benign uterine tumors. Typically asymptomatic, they may determine menometrorrhagia, abdominal pain and infertility. They may be singular or multiple and may have variable size. When leiomyomas increase in size, their vascular supply may become insufficient determining different types of degeneration: hyaline, myxoid, cystic and hemorrhagic (red)....

Introduction: Cervical root resorption is one of the most important complications of intra coronal bleaching. A way of preventing this type of resorption is using a coronal barrier under the bleaching materials. The aim of this study was to compare the sealing ability of glass ionomer cement and Pro Root Mineral Trioxide Aggregate (MTA) as a coronal barrier in intra coronal bleaching. Materi...

PURPOSE We aimed to investigate the value of magnetic resonance imaging (MRI)-based parameters in differentiating between progressive massive fibrosis (PMF) and lung cancer. METHODS This retrospective study included 60 male patients (mean age, 67.0±9.0 years) with a history more than 10 years working underground coal mines who underwent 1.5 T MRI thorax due nodule/mass suspicious for cancer on ...

The ‘‘coronal heating problem’’ has been with us over 60 years, and hundreds of theoretical models have been proposed without an obvious solution in sight. In this paper we point out that observations show no evidence for local heating in the solar corona, but rather for heating below the corona in the transition region and upper chromosphere, with subsequent chromospheric evaporation as known ...

Introduction After detailed anatomical delineation of the anterolateral ligament (ALL) knee, there is a surge in research on this structure. Owing to variation and lack experience identification structure, magnetic resonance (MR) evaluation ALL produces mixed results. It was aimed evaluate using routinely performed MR imaging knee determine any associated factors with injuries. Materials method...