The aim of this study was to evaluate the discoloration effects of water, cola-based soft drink, coffee, and wine on resin composites used in restorative dentistry and the possibility of removing the stain with chair side manual polishing. The A2 shade of three materials was tested. Disc specimens were prepared. A spectrophotometer was used to measure the baseline CIE-Lab color parameters of ea...

Two carbonate stones (a limestone and a marble), commonly used for flooring, wall cladding countertops, were exposed to different staining agents. After each cycle (staining cleaning with non-ionic detergent solution), the surface degradation was assessed on scale ranging from unchanged severe change (based qualitative characterization presented standard UNE-EN 16301:2014), stereomicroscopy col...

statement of problem: primary teeth discoloration can cause mentally and socially unpleasant effects in children. this can also be a sign of systemic disease. despite the importance of this subject, a comprehensive study has not been performed yet. purpose: the aim of this study was determining the frequency of different types of primary teeth discoloration. materials and methods: in this cross...

UNLABELLED The resurgence of Mycobacterium tuberculosis in association with HIV infection has focussed much attention in the rapid diagnosis of high risk cases. Infection with HIV is known to alter the presentation of pulmonary tuberculosis. The present study was under taken to compare the efficacy of fluorochrome stain (Fl) with conventional Ziehl Neelsen (ZN) stain in the diagnosis of pulmona...

Protective properties of moderate wine consumption against cancers, cardiovascular, metabolic and degenerative diseases have been reported in various clinical studies. Here, we analysed the effect of red wine (RW) and white wine (WW) on myelination using an in vitro embryonic co-culture mouse model. The total amount of myelin was found to be significantly increased after RW and WW treatment, wh...

in this paper article of “wine” written by kathryn kueny in encyclopedia of the quran, vol. 5, pp. 481-483 is translated and then is surveyed and criticized by using of shiite and sunni jurisprudential, interpretative and lexical books and some of legal articles of case law of iran. the author firstly mentions nature and quiddity of wine and also local situation of building wine, and then he de...