Color match is one of the most important characteristics of aesthetic restorative materials. Maintenance of color throughout the functional lifetime of restorations is important for the durability of treatment. This characteristic is not constant among dental materials. The purpose of this research was to assess the color stability of five aesthetic restorative materials when immersed in a coff...

BACKGROUND Restoring carious teeth is one of the major treatment needs of young children. Glass ionomer cement (GIC) systems had become the most important dental restorative and luting materials for use in preschoolers, children and teenagers. Several attempts in developing GIC with antibacterial effects by addition of bactericides, such as chlorhexidine, have been reported. AIM AIM of the st...

The present study was designed to determine the effects of visible mutations of large effect on developmental stability and canalization in different morphological traits, namely, sternopleural bristle number, wing length, wing to thorax ratio, ovariole number, and sex comb tooth number (SCTN) in Drosophila ananassae. We have compared the mean trait size, fluctuating asymmetry (FA) (as an index...

Wine stability considerations can be classified as: microbiological, protein, tartrate, red wine oxidative and color, white wine oxidative and color, and metals. The problems of producing stable, highly palatable products are of concern to every vintner. The days when wineries can release wines to the public with physical instabilities and still compete has long past. It is essential that every...

objectives: this study aimed to evaluate the effects of chlorhexidine mouthrinses on color stability of nanofilled and micro-hybrid resin-based composites. materials and methods: in this in-vitro study, 160 disc-shaped specimens (7x2mm) were fabricated of filtek z250 and filtek z350xt enamel (a2 shade). the samples of each group were randomly divided into eight subgroups (n=10). the specimens w...

Background and Aim: Changing the color of resin luting cements could affect the aesthetic appearance of thin porcelain veneer. The aim of this in vitro study was to evaluate the effect of artificially accelerated aging on color stability of light-cured resin cement and flowable composite as a luting agent through the porcelain veneer. Materials and Methods: This experimental study was carried ...

This research aimed to compare the effects of pigments extracted from dried petal meal of marigold flower and synthetic pigments on productive performance of laying hens, egg quality and antioxidant properties of the egg. A total of 64 laying hens, aged 75 weeks, were distributed in a completely randomized design in 4 treatments and 4 replications containing 4 hens per cages. Experimental group...