Adequate knowledge and accurate characterization of root canal anatomy is an essential prerequisite for successful treatment endodontic surgery. Over the years, ever-increasing body related to human dentition has accumulated. To correct deficiencies in existing systems, a new coding system classifying morphology, accessory canals anomalies been introduced. In recent micro-computed tomography (m...

BACKGROUND Complete mechanical preparation of the root canal system is rarely achieved. Therefore, the purpose of this study was to evaluate and compare the root canal shaping efficacy of ProTaper rotary files and standard stainless steel K-files using micro-computed tomography. MATERIAL AND METHODS Sixty extracted upper second premolars were selected and divided into 2 groups of 30 teeth eac...

Noninvasive and/or nondestructive techniques can provide structural information about bone, beyond simple bone densitometry. While the latter provides important information about osteoporotic fracture risk, many studies indicate that bone mineral density (BMD) only partly explains bone strength. Quantitative assessment of macrostructural characteristics, such as geometry, and microstructural fe...

aortoenteric fistula is a rare but significant clinical entity associated with high morbidity and mortality if remain untreated. clinical presentation and imaging findings may be subtle and prompt diagnosis can be difficult. herein, we present a patient who initially presented with abdominal pain and computed tomography showed an aortic aneurysm compressing duodenum without any air bubbles. one...

primary small cell carcinoma of the ureter is an extremely rare disease, only several cases have been reported worldwide so far. we report a 70-year-old woman who was examined with intravenous urography and abdominal computed tomography and was diagnosed as small cell carcinoma confirmed by pathology. we describe and discuss the urography and computed tomography findings of this case.

background: this study assessed the optimal timing of computed tomography for detection of metastatic disease in locoregional lymph nodes in patients with rectal cancer who have undergone chemoradiotherapy. materials and methods: this observational retrospective study was performed in a single institution. all patients with locally advanced rectal cancer treated with chemoradiotherapy, followed...