introduction: leakage of the root canal system is an importent consideration when placing an intracanal medicament. the aim of this in vitro study was to compare the effect of calcium hydroxide and 1% chlorhexidine gel as intracanal medicaments on tooth apical seal. materials and methods: seventy extracted, single-rooted maxillary anterior teeth were divided into the three experimental groups (...

abstract background: esophageal anastomosis leaks continue to be a significant cause of morbidity and mortality after esophagectomy. the purpose of the present study was to identify the predisposing factors of esophageal anastomotic leakage. materials and methods: 95 patients who underwent surgical resection for esophageal or cardia cancer were included for the study. the mean age of the patien...

abstract background and aims: probable risk factors of clinical anastomotic leakage and the role of defunctioning stoma in patients undergoing low anterior resection (lar) for rectal cancer, is still controversial. the goal of our study was to find out possible risk factors of anastomotic leakage and to locate the influence of protective stoma in the rate of anastomotic leakage. materials and m...

Dear Editor, In urethral stricture disease, it is known that anastomostic urethroplasty with complete excision of scar tissue provide the best long-term outcome for short bulbar urethral strictures. Longer strictures are dealt with by onlay urethroplasties employing tissue substitution, using either flaps or grafts. In recent times, the buccal mucosa graft, whether laid dorsally or ventrally, h...

PUBLISHED BY THE IEEE COMPUTER SOCIETY 1540-7993/04/$20.00 © 2004 IEEE IEEE SECURITY & PRIVACY 23 I t is well known among the more technical computer user communities that documents written and stored in the Microsoft Word document format might contain hidden data. Some communities of regular computer users are also aware of this fact—for example, people working in the legal sector. However, aw...

We build a simple analytical general equilibrium model to find a closed-form expression for the effect of a small increase in carbon tax on leakage – the increase in emissions elsewhere. The model has two goods produced in two sectors or regions. Many identical consumers buy both goods using income from fixed stocks of labor and capital that are mobile between sectors. The usual result is that ...

We study a statistical signal processing privacy problem, where an agent observes useful data $Y$ and wants to reveal the information user. Since is correlated with private notation="LaTeX">$X$ , employs mechanism generate notation="LaTeX">$U$ that can be released. design maximizes revealed abou...

Metal oxide surge arresters (ZNO) are used widely in power system to protect equipments from over voltages. Non uniform potential distribution leads to the depressed service life and low safe reliability, so grading ring is applied on HV surge arrester order to uniform the electric field distribution. One of the problems of arresters is leakage current in power frequency that different paramet...

Introduction:One-bottle light-cured adhesives systems have variable pH. In addition to ease of use, universal adhesives can be used in various restorations and different substrates. Due to the lack of studies, the purpose of this study was to compare the enamel and dentin micro-leakage of self-cure and light cure composite restorations using a universal bonding system. Materials & Methods:The ...