Assessment of surface roughness and microbiological retention on custom abutments produced by different techniques and materials.

The aims of this study were twofold: first, to investigate the surface roughness of different abutment materials prepared using various manufacturing methods; and, second, to evaluate colonization by Streptococcus mutans and Candida albicans according to abutment material and manufacturing method. Six material/manufacturing method combinations were investigated in this study, namely chromium-cobalt (Cr-Co) (prepared using casting, milling, and laser sintering) and titanium, zirconia, and anodized titanium (all prepared using milling); titanium (stock) abutments were used as the control group. Surface roughness of seven specimens from each group was evaluated using atomic force microscopy and scanning electron microscopy.

Effects of Green Extraction Methods on Antioxidant and Antimicrobial Properties of Artichoke ( L.) Leaves.

Research Background: Artichoke leaves, an important waste product of the food industry, have an important antioxidant and antimicrobial capacity. Although there are several studies in the literature to determine their antioxidant and antimicrobial activity, a comparison of green extraction technologies including microwave, ultrasound probe and ultrasound bath methods in relation to the maceration technique has not been performed. Also, several parameters such as the extraction temperature, power, extraction mode and extraction time are important parameters for obtaining targeted compounds in the highest amount.

Isolation, Identification, and Antimicrobial Evaluation of Secondary Metabolite from via an Epicutaneous Infection Model.

Microbial secondary metabolites, which play a pivotal role in struggling with infectious diseases, are the new source for controlling bacterial contaminations and possess a strong antimicrobial potential. The present study is designed to evaluate the and bactericidal activities of prodigiosin against . For this purpose, was used to produce prodigiosin.

Optimization of the conditions of alkaline extraction of tomato peels and characterization of tomato peel extracts obtained under atmospheric and oxygen free conditions.

This study aims to optimize the extraction conditions to obtain the highest yield, to characterize tomato peel extract (TPE) under optimized conditions, and also to determine the effect of ambient oxygen on the properties of TPE. Optimisation were performed at three temperatures (60 °C, 80 °C, 100 °C) and three periods (2, 4, 6 h) by the response surface methodology. The properties of the extract under atmospheric and oxygen-free conditions (AC, OFC) were analysed to determine whether the characteristics of both extracts changed depending on the presence of oxygen; moreover, the morphological, chemical, thermal, biochemical, and antimicrobial properties were analysed.

Evaluation of organic load-related efficacy changes in antiseptic solutions used in hospitals.

Background: In this study, it was aimed to evaluate the change in antimicrobial efficacy related to the presence of the organic load of four different antiseptic solutions that are frequently used in hospitals.

Methods: Solutions of hydrogen peroxide, povidone-iodine, chlorhexidine digluconate, and ethyl alcohol were prepared, tested in terms of antimicrobial efficacy changes in the presence of organic substances, and evaluated according to EN 13727 and EN 13624 standards.

Results: Among the investigated solutions ethanol 70% solution showed the best results by providing a 5-log reduction on all test organisms without affecting by the type and concentration of organic substances.

Comparison of bactericidal and fungicidal efficacy of antiseptic formulations according to EN 13727 and EN 13624 standards.

Background/aim: In this study, the antibacterial and antifungal properties of the five most commonly used antiseptic formulations were evaluated in terms of different contact times and organic conditions.

Materials And Methods: Solutions of chlorhexidine digluconate, povidone iodine, isopropyl alcohol, hydrogen peroxide, and tincture of iodine were prepared and tested according to European standards EN 13727 and EN 13624 with different parameters.

Results: The results showed that isopropyl alcohol (70% v/v) and tincture of iodine (2%) had greater bactericidal and fungicidal activity against the four tested bacteria and two fungi in all conditions.