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Hypochlorite

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https://www.readbyqxmd.com/read/28650791/deproteinizing-agents-as-an-effective-enamel-bond-enhancer-an-in-vitro-study
#1
Pallavi Hasija, Vinod Sachdev, Shivani Mathur, Rishi Rath
OBJECTIVE: The aim of this study was to compare the effect of different deproteinizing agents on shear bond strength of composite to primary teeth enamel. STUDY DESIGN: Forty sound primary molars divided in 4 groups of 10 teeth each. In control group 1, enamel was etched for 60 seconds with 37% phosphoric acid and rinsed with water. Group 2: after acid etching deproteinizing agent 5 % sodium hypochlorite was applied for 60 seconds and rinsed. Group 3: after acid etching deproteinizing agent papain gel was applied for 60 seconds and rinsed...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28650788/comparison-of-the-antimicrobial-efficacy-of-the-endovac-system-and-conventional-needle-irrigation-in-primary-molar-root-canals
#2
Burak Buldur, Arife Kapdan
PURPOSE: The purpose of this study was to compare the antimicrobial efficacy of the EndoVac system and conventional needle irrigation to eliminate E faecalis in primary molar root canals. STUDY DESIGN: 60 extracted human primary second molar roots were instrumented up to an apical size .04/35 and randomly divided into two groups; Group 1: conventional needle (n=30) and Group 2: EndoVac (n=30), and four subgroups (two experimental subgroups; (a) 2.5% sodium hypochlorite (NaOCl) + ethylenediaminetetraacetic acid (EDTA) (n=20), (b) ozonated water (OW) + EDTA (n=20), and control groups (c) 5...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28649571/impact-of-built-up-litter-and-commercial-antimicrobials-on-salmonella-and-campylobacter-contamination-of-broiler-carcasses-processed-at-a-pilot-mobile-poultry-processing-unit
#3
KaWang Li, Lacey Lemonakis, Brian Glover, Joseph Moritz, Cangliang Shen
The small-scale mobile poultry-processing unit (MPPU) produced raw poultry products are of particular food safety concern due to exemption of USDA poultry products inspection act. Limited studies reported the microbial quality and safety of MPPU-processed poultry carcasses. This study evaluated the Salmonella and Campylobacter prevalence in broiler ceca and on MPPU-processed carcasses and efficacy of commercial antimicrobials against Campylobacter jejuni on broilers. In study I, straight-run Hubbard × Cobb broilers (147) were reared for 38 days on clean-shavings (CS, 75) or built-up-litter (BUL, 72) and processed at an MPPU...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28643098/-importance-of-wound-irrigation-solutions-and-fluids-with-antiseptic-effects-in-therapy-and-prophylaxis-update-2017
#4
REVIEW
Christian Willy, Catharina Scheuermann-Poley, Marcus Stichling, Thomas von Stein, Axel Kramer
INTRODUCTION: Despite the use of modern antibiotics as well as complex perioperative, intraoperative and postoperative prophylactic measures, the rate of surgical site infections (SSI) could not be significantly reduced. The introduction of biocompatible antiseptic drugs with a high microbiocidal effect provided a successful alternative for infection prevention and therapy, particularly in a time of increasing occurrence of multi-drug resistant pathogens. Hence, questions about the risk-benefit ratio of antiseptic wound irrigation solutions, the prophylactic use of wound irrigation solutions for the reduction of SSI and the effect of negative pressure wound therapy combined with instillation (NPWTi) need to be answered...
June 22, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28642925/the-effect-of-gelatinase-production-of-enterococcus-faecalis-on-adhesion-to-dentin-after-irrigation-with-various-endodontic-irrigants
#5
Mehmet Burak Guneser, Ayce Unverdi Eldeniz
Objectives: The aim of this study was to evaluate whether the gelatinase production ability of Enterococcus faecalis provides any advantage on adhesion of this bacterium to dentin treated with various irrigants and their combinations. Materials and methods: Standardized dentin discs were randomly divided into five groups (n = 20): group 1: 2.5% sodium hypochlorite (NaOCl), group 2: 2% chlorhexidine (CHX), group 3: NaOCl + Saline + CHX, group 4: NaOCl + EDTA + NaOCl, group 5: QMix. After incubation of dentin discs with irrigants, each group was divided into two subgroups (n = 10) according to the bacterial strains used; a gelatinase-producing and a gelatinase-deficient strain of E...
December 2016: Acta Biomaterialia Odontologica Scandinavica
https://www.readbyqxmd.com/read/28633052/disinfection-efficiencies-of-sage-and-spearmint-essential-oils-against-planktonic-and-biofilm-staphylococcus-aureus-cells-in-comparison-with-sodium-hypochlorite
#6
Dimitrios Vetas, Eleni Dimitropoulou, Gregoria Mitropoulou, Yiannis Kourkoutas, Efstathios Giaouris
Staphylococcus aureus causes human infections and foodborne intoxications. This study explored the potential antibacterial actions of sage and spearmint essential oils (EOs) against both its planktonic and biofilm cells, in comparison with sodium hypochlorite (NaOCl), a commonly applied chemical sanitizer. Initially, the minimum inhibitory and bactericidal concentrations (MICs, MBCs) of each plant mixture were determined against planktonic cultures, following growth at 30°C for 24h. Stationary phase planktonic bacteria were then individually exposed for 6min to either each EO (applied at 1-2×MBC; 2...
June 8, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28631818/inactivation-of-bacillus-cereus-spores-on-red-chili-peppers-using-a-combined-treatment-of-aqueous-chlorine-dioxide-and-hot-air-drying
#7
Songyi Kim, Huyong Lee, Jee-Hoon Ryu, Hoikyung Kim
The effect of a combined treatment using aqueous chlorine dioxide (ClO2 ) and hot-air drying to inactivate Bacillus cereus spores on red chili peppers was evaluated. Ten washed and dried pepper samples, each comprising half of a single pepper (Capsicum annuum L.), were inoculated with B. cereus spore suspension. The inoculated samples were washed with sodium hypochlorite (NaOCl; 50, 100, or 200 μg/mL) or ClO2 (50, 100, or 200 μg/mL) solution for 1 min and then air-dried (25 ± 1 °C, 47 ± 1% relative humidity), which was followed by drying with hot air at 55 °C for up to 48 h...
June 20, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28629970/variation-analysis-of-bacterial-polyhydroxyalkanoates-production-using-saturated-and-unsaturated-hydrocarbons
#8
Saiqa Tufail, Sajida Munir, Nazia Jamil
Polyhydroxyalkanoates (PHA) are efficient, renewable and environment friendly polymeric esters. These polymers are synthesized by a variety of microbes under stress conditions. This study was carried out to check the suitability of waste frying oil in comparison to other oils for economical bioplastic production. Six bacterial strains were isolated and identified as Bacillus cereus (KF270349), Klebsiella pneumoniae (KF270350), Bacillus subtilis (KF270351), Brevibacterium halotolerance (KF270352), Pseudomonas aeruginosa (KF270353), and Stenotrophomonas rhizoposid (KF270354) by ribotyping...
May 29, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28628976/effective-enzymatic-in-situ-saccharification-of-bamboo-shoot-shell-pretreated-by-dilute-alkalic-salts-sodium-hypochlorite-sodium-sulfide-pretreatment-under-the-autoclave-system
#9
Gang-Gang Chong, Yu-Cai He, Qiu-Xiang Liu, Xiao-Qin Kou, Xiao-Jun Huang, Jun-Hua Di, Cui-Luan Ma
In this study, dilute alkali salts (0.6% NaClO, 0.067% Na2S) pretreatment at 10% sulfidity under the autoclave system at 120°C for 40min was used for pretreating bamboo shoot shell (BSS). Furthermore, FT-IR, XRD and SEM were employed to characterize the changes in the cellulose structural characteristics (porosity, morphology, and crystallinity) of the pretreated BSS solid residue. After 72h, the reducing sugars and glucose from the enzymatic in situ hydrolysis of 50g/L pretreated BSS in dilute NaClO/Na2S media could be obtained at 31...
June 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28622484/bactericidal-effect-of-er-yag-laser-activated-sodium-hypochlorite-irrigation-against-biofilms-of-enterococcus-faecalis-isolate-from-canal-of-root-filled-teeth-with-periapical-lesions
#10
Xiaogang Cheng, Doudou Xiang, Wenxi He, Jun Qiu, Bing Han, Qing Yu, Yu Tian
OBJECTIVE: This study was to evaluate the bactericidal effect of Er:YAG laser-activated sodium hypochlorite irrigation (Er:YAG + NaOCl) on biofilms of Enterococcus faecalis clinical isolate. BACKGROUND DATA: It was reported that Er:YAG + NaOCl had effective bactericidal effect on laboratory-adapted E. faecalis strain, while no study has reported its effect on the clinical isolate. METHODS: Eighteen E. faecalis strains were isolated from 39 root-filled teeth with periapical lesions, and their biofilm formation abilities were evaluated using the crystal violet staining method...
June 16, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28620636/a-scanning-electron-microscopic-evaluation-of-the-effectiveness-of-etidronic-acid-smearclear-and-mtad-in-removing-the-intracanal-smear-layer
#11
Hemant Kumar Yadav, Rakesh Kumar Yadav, Anil Chandra, Aseem Prakash Tikku
STATEMENT OF THE PROBLEM: Root canal therapy should not simply be the extirpation of the pulp and widening of the canal. But one should also focus on how to completely remove the loosely-attached smear layer because it has adverse effects on the final outcome of the treatment. PURPOSE: This study compared the efficacy of Etidronic acid, SmearClear and MTAD to remove the smear layer created during instrumentation in different regions of the root canal. MATERIALS AND METHOD: Fifty single-rooted mandibular premolars were decoronated from the cementoenamel junction and instrumented using the ProTaper universal rotary file system along with copious irrigation by 1...
June 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28620631/the-effect-of-titanium-tetrafluoride-and-sodium-hypochlorite-on-the-shear-bond-strength-of-methacrylate-and-silorane-based-composite-resins-an-in-vitro-study
#12
Farahnaz Sharafeddin, Fatemeh Koohpeima, Nader Razazan
STATEMENT OF THE PROBLEM: The bond strength of composites with different adhesive systems with dentin is an important factor in long term durability of composite restorations. The effect of titanium tetrafluoride (TiF4) as anti caries agent and sodium hypochlorite (NaOCl) as disinfectant on the shear bond of nanofilled and silorane based composite resins have not been investigated in previous studies. PURPOSE: This study was conducted to determine bond strength between dentin and two composite systems, by means of shear bond test using TiF4 and NaOCl...
June 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28620254/isolation-morphological-identification-and-in-vitro-antibacterial-activity-of-endophytic-bacteria-isolated-from-azadirachta-indica-neem-leaves
#13
Ankit Kumar Singh, Rajesh Kumar Sharma, Varsha Sharma, Tanmay Singh, Rajesh Kumar, Dimple Kumari
AIM: The objective of this study was to isolate endophytic bacteria from Azadirachta indica (neem) leaves, their identification and investigate their antibacterial activity against three Gram-positive bacteria, Staphylococcus aureus, Streptococcus pyogenes and Bacillus cereus and Gram-negative bacteria Escherichia coli, Salmonella Typhimurium and Klebsiella pneumoniae. MATERIALS AND METHODS: Fresh leaves of A. indica (neem) was procured from the Department of Botany, JNKVV, Jabalpur...
May 2017: Veterinary World
https://www.readbyqxmd.com/read/28610932/automatic-environmental-disinfection-with-hydrogen-peroxide-and-ion-silver-versus-manual-environmental-disinfection-with-sodium-hypochlorite-a-multicenter-randomized-before-and-after-trial
#14
D Mosci, G W Marmo, L Sciolino, C Zaccaro, R Antonellini, L Accogli, T Lazzarotto, M Mongardi, M P Landini
AIMS: 1. Compare the effectiveness of an automated disinfection system with hydrogen peroxide <8% and silver ion versus a manual method with 0.5% sodium hypochlorite solution to evaluate the reduction of microbial mesophilic contamination and Clostridium difficile (CD) presence; 2. Evaluate the organizational impact of these two technologies in terms of time required for the process. METHODS: A randomized multicenter trial performed in four public and private health facilities in the Emilia-Romagna Region, in different wards including medicine, orthopaedics, long-term care, recovery and functional rehabilitation, which were previously occupied by patients with Clostridium difficile Infection (CDI)...
June 10, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28608678/new-insights-into-the-stability-of-silver-sulfide-nanoparticles-in-surface-water-dissolution-through-hypochlorite-oxidation
#15
Lingxiangyu Li, Zhenlan Xu, Andreas Wimmer, Qinghua Tian, Xin Ping Wang
Silver sulfide nanoparticles (Ag2SNPs) are considered to be stable in the environment due to the extreme low solubility of Ag2S (Ksp: 6.3×10-50). Little is known about the stability of Ag2SNPs in surface water disinfected with aqueous chlorine, one of the globally most used disinfectants. Our results suggested that both uncoated and polyvinylpyrrolidone (PVP)-coated Ag2SNPs (100 μg/L) underwent dissolution in surface water disinfected with aqueous chlorine at a dose of 4 mg/L, showing the highest dissolved silver ion concentrations of 22...
June 13, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28606669/effectiveness-in-the-removal-of-endotoxins-and-microbiological-profile-in-primary-endodontic-infections-using-3-different-instrumentation-systems-a-randomized-clinical-study
#16
Daiana Cavalli, Cássia Cestari Toia, Esteban Isai Flores Orozco, Rayana Duarte Khoury, Flávia Goulart da Rosa Cardoso, Marcelo Corrêa Alves, Cláudio Antônio Talge Carvalho, Marcia Carneiro Valera
INTRODUCTION: This clinical study was conducted to correlate the microbiological profile and levels of endotoxins found in primary endodontic infection with the presence of clinical features and to evaluate the removal of microorganisms and endotoxins using rotary, reciprocating, and hybrid systems for biomechanical preparation. METHODS: Thirty single root canals with primary endodontic infection were evaluated with signs and symptoms and were randomly divided into 3 groups according to the instrumentation system used (n = 10) as follows: rotary Mtwo instruments (VDW, Munich, Germany) with 8 files, the reciprocating Reciproc system (VDW) with a single file, and Genius hybrid instruments with 3 files (1 rotary and 2 reciprocating files) with irrigation using 24 mL 2...
June 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28605289/effect-of-sub-lethal-concentrations-of-biocides-on-the-structural-parameters-and-viability-of-the-biofilms-formed-by-salmonella-typhimurium
#17
Rosa Capita, Laura Buzón-Durán, Félix Riesco-Peláez, Carlos Alonso-Calleja
This study aimed to investigate the effect of sub-minimum inhibitory concentrations (sub-MICs) of three food-grade biocides (benzalkonium chloride -BZK-, trisodium phosphate -TSP-, and sodium hypochlorite -SHY-) on Salmonella biofilms. The structural parameters and bacterial viability of the biofilms formed by a S. Typhimurium isolate from poultry was investigated by means of confocal laser scanning microscopy after staining with SYTO9 and propidium iodide. The MIC values for Salmonella cells before exposure to subinhibitory concentrations of biocides were 8...
June 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28597508/a-graphene-quantum-dots-hypochlorite-hybrid-system-for-the-quantitative-fluorescent-determination-of-total-antioxidant-capacity
#18
Min Wang, Jie Chen, Chenghao Liu, Jianding Qiu, Xiaomeng Wang, Peng Chen, Chenjie Xu
Antioxidants play a major part in the prevention and impairment of oxidative stress-induced damages and diseases. Evaluating the antioxidants activity/capacity in food and biological fluid is proved to be useful for the diagnosis and treatment of these oxidative stress-induced diseases. Herein, a graphene quantum dots (GQDs)-hypochlorite system to detect the antioxidants including nonenzymatic and enzymatic antioxidants in the biological fluid is proposed. The detection principle is based on the fact that antioxidants can protect the fluorescence of GQDs from hypochlorite-caused quenching by acting as the scavengers of hypochlorite...
June 8, 2017: Small
https://www.readbyqxmd.com/read/28597006/effect-of-final-irrigation-protocol-and-etching-mode-on-bond-strength-of-a-multimode-adhesive-in-the-root-canal
#19
Kerstin Bitter, Luise Polster, Haitham Askar, Manja von Stein-Lausnitz, Guido Sterzenbach
PURPOSE: To analyze the effects of ethanol for final post space irrigation and etching mode on the bond strength of fiber posts luted with a mild multimode adhesive (pH 2.3) as compared with a reference group using a self-adhesive resin cement (SAR). MATERIALS AND METHODS: Human anterior teeth were endodontically treated. After post space preparation, the root canals were irrigated using 1% sodium hypochlorite (NaOCl) applied with passive ultrasonic irrigation, followed by either distilled water (control) or distilled water and ethanol 99% as final post space irrigation...
June 8, 2017: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/28593370/identification-of-optimum-fatty-acid-extraction-methods-for-two-different-microalgae-phaeodactylum-tricornutum-and-haematococcus-pluvialis-for-food-and-biodiesel-applications
#20
Paz Otero, Sushanta Kumar Saha, Joanne Mc Gushin, Siobhan Moane, John Barron, Patrick Murray
Microalgae have the potential to synthesize and accumulate lipids which contain high value fatty acids intended for nutrition and biodiesel applications. Nevertheless, lipid extraction methods for microalgae cells are not well established and there is not a standard analytical methodology to extract fatty acids from lipid-producing microalgae. In this paper, current lipid extraction procedures employing organic solvents (chloroform/methanol, 2:1 and 1:2, v/v), sodium hypochlorite solution (NaClO), acid-catalysed hot-water extraction and the saponification process [2...
June 7, 2017: Analytical and Bioanalytical Chemistry
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