Purpose: The aim of this study was to compare the color stability two different hybrid ceramic materials. Materials & Methods: Using precision cutting device (Micracut, Metcon, Turkey), 36 specimens (12 x 15 1 mm) were obtained from Vita Enamic (Vita Zahnfabrik, Germany) and Lava Ultimate (3M ESPE, St.Paul, USA) CAD / CAM blocks. After finishing procedures completed, all stored in distilled...

Denture stomatitis is a disease involving C. albicans, which can affect elderly and immuno-compromised people. To avoid any recurrence of this pathology, it necessary to treat patients regularly disinfect dentures. However, the denture cleansers’ efficacy not optimal often leads adverse color effects on base resins. The aim study was investigate low-pressure non-thermal O2 plasma (NTP) treatmen...

Continuing our previous research on color image compression, we move towards spectral image compression. This enormous amount of data needs more space to store and more time to transmit. To manage this sheer amount of data, researchers have investigated different techniques so that image quality can be conserved and compressibility can be improved. The principle component analysis (PCA) can be ...

For discrete-time, infinite-horizon economies that are represented by a sequence of interrelated smooth equations, we provide sufficient conditions to guarantee regularity of equilibria on a full measure set of economies. Our approach exploits the sequential nature of a dynamic economy. An equilibrium is represented by a sequence of endogenous variables that solves a sequence of systems of smoo...

We use a unique data set covering over 30,000 Italian firms over 10 years to estimate the interest sensitivity of investment. This data set has three special attributes. First, it includes information that allows us to link firms to the banks from which they are borrowing. Second, the terms of the lending agreements are quite accurately recorded. Finally, we have balance sheet and other cost in...

In Japan, a rapid pace of aging coupled with the lower birth rates causes the decrease of the population especially in rural area, which leads to the problems with the delivery of healthcare services. We investigated the relationship between the geographical accessibility (time and distance) and the utilization rate of outpatient services in the elderly by major disease groups in Tokushima pref...

Purpose: The aim of the study is to evaluate color stability a conventional composite resin and bulk-fill resins.
 Material Methods: A total 120 samples 10 mm diameter 2 thickness were prepared from three (Beautifil Bulk-Fill, Filtek One Tetric N-Ceram Bulk-Fill) one (Z250) light cured. Initial measurements made with spectrophotometer. Samples for each randomly divided into 3 groups (black...

â â â  â â â â â  the aim of this paper is to simulate the effects of some macroeconomic policy tools on production and inflation of iran by the current worldwide financial and real crisis. the theoretical framework of the analysis is based on the so-called ‘imf/world bank integrated model’ which is the synthesis (a merger) of the basic monetary approach of the balance of payments used at t...

Objective To analyze the impact of color a resin composite cement (RCC) on optical properties different computer-aided design and manufacturing (CAD/CAM) ceramics. Materials methods Specimens (N = 220, thickness: 0.9 ± 0.03 mm) were fabricated from: leucite (Initial LRF Block/IPS Empress CAD), lithium disilicate (Amber Mill/IPS e.max metasilicate (Celtra Duo), alumina silicate ceramic (n!ce) in...

BACKGROUND To determine the clinical effectiveness of statins on cardiovascular mortality in practice, observational studies are needed. Control for confounding is essential in any observational study. Falsification end-points may be useful to determine if bias is present after adjustment has taken place. METHODS We followed starters on statin therapy in the Netherlands aged 46 to 100 years o...