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Sodium hypochlorite

Nova Nexhmije Ajeti, Teuta Pustina-Krasniqi, Sonja Apostolska
OBJECTIVES: During the treatment of chronic apical periodontitis and pulp necrosis the main role is to irrigate the root canal. AIM: The aim of this in vivo study was to irrigate with 0.9% NaCl (Natrium Chloride), 2.5 % NaOCl (Sodium Hypochlorite Solution, Sigma Aldrich - Germany) and 2% CHX (Chlorhexidine Digluconate Solution, Sigma Aldrich - Spain) combined with Gaseous Ozone (Prozone WH, Austria). MATERIAL AND METHODS: This study was realised in the University Dentistry Clinical Centre of Kosovo (UDCCK), respectively in the Department of Endodontic and Dental Pathology, Dental Branch, Faculty of Medicine, Prishtina, Kosovo...
February 15, 2018: Open Access Macedonian Journal of Medical Sciences
Tareq M Osaili, Akram R Alaboudi, Heba N Al-Quran, Anas A Al-Nabulsi
Enterobacteriaceae family can contaminate fresh produce at any stage of production either at pre-harvest or post-harvest stages. The objectives of the current study were to i) identify Enterobacteriaceae species on iceberg lettuce, ii) compare the decontamination efficiency of water, sodium hypochlorite (free chlorine 200 ppm), peroxyacetic acid (PA 80 ppm; Kenocid 2100® ) or their combinations and ionizing radiation against Enterobacteriaceae on shredded iceberg lettuce and iii) determine the survival of Enterobacteriaceae post-treatment storage of shredded iceberg lettuce at 4, 10 and 25 °C, for up to 7 days...
August 2018: Food Microbiology
Y Ustun, S Düzgün, T Aslan, A Aktı
Introduction: The purpose of this study was to evaluate the efficiencies of different irrigation protocols in the removal of triple antibiotic paste (TAP) from root canals. Materials and Methods: A total of 127 extracted human maxillary incisor teeth were prepared. Then, root-end resection of 3 mm was accomplished to simulate immature apex model. The root canals were filled with TAP, after 21 days, randomly divided into nine groups according to irrigation systems and solutions (n = 13)...
March 2018: Nigerian Journal of Clinical Practice
B Dikmen, B Tarim
Objectives: The aim of this study was to determine the influence of irrigants on bond strength of adhesive systems. Materials and Methods: Superficial dentin surfaces of 60 extracted molars were divided into 15 groups, according to irrigants and adhesives. In the control groups, surfaces were irrigated with distilled water. In experimental groups, sodium hypochlorite (NaOCl), ethylenediaminetetraacetic acid (EDTA) + NaOCl, chlorhexidine (CHX), and NaOCl + sodium ascorbate were used as irrigants...
March 2018: Nigerian Journal of Clinical Practice
Hye Ri Jeon, Mi Jin Kwon, Ki Sun Yoon
Biofilm formation on food contact surfaces is a potential hazard leading to cross-contamination during food processing. We investigated Listeria innocua biofilm formation on various food contact surfaces and compared the washing effect of slightly acidic electrolyzed water (SAEW) at 30, 50, 70, and 120 ppm with that of 200 ppm of sodium hypochlorite (NaClO) on biofilm cells. The risk of L. innocua biofilm transfer and growth on food at retail markets was also investigated. The viability of biofilms that formed on food contact surfaces and then transferred cells to duck meat was confirmed by fluorescence microscopy...
March 8, 2018: Journal of Food Protection
Steven Caskey, John E Moore, Jacqueline C Rendall
Background: Mycobacterium abscessus pulmonary infection has recently emerged as a significant pathogen in patients with cystic fibrosis (CF) and is associated with significant morbidity and accelerated pulmonary decline. There is a paucity of data describing the activity of hospital biocides against this organism. Methods: M. abscessus isolates (n = 13) were recovered from CF and non-CF respiratory specimens. Seven commonly employed hospital biocides with generic ingredients as follows: acetone, propan-2-ol, diethylene glycol, 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, chlorine dioxide, 4% chlorhexidine, alcohol, and disodium carbonate, compound with hydrogen peroxide, 10% sodium hypochlorite were assayed for their biocidal activity against M...
January 2018: International Journal of Mycobacteriology
Manika Agarwal, Emily Wible, Tyler Ramir, Sibel Altun, Grace Viana, Carla Evans, Henry Lukic, Spiro Megremis, Phimon Atsawasuwan
OBJECTIVES: To evaluate the long-term effects of seven different cleaning methods on light transmittance, surface roughness, and flexural modulus of a polyurethane retainer material. MATERIALS AND METHODS: Polyurethane retainer specimens (Vivera®, Align Technology Inc) (70 specimens, n = 10 per method, 50.8 mm × 12.7 mm × 1.0 mm) were exposed to seven cleaning methods twice a week for 6 months. Before treatment and after 6 months, light transmittance, surface roughness, and flexural modulus of the specimens were quantified...
March 6, 2018: Angle Orthodontist
Suli Zhi, Liang Tian, Nan Li, Keqiang Zhang
The MnO2 -mullite-cordierite composite particle (MnO2 -MCP) was prepared and firstly was applied as catalyst with sodium hypochlorite (NaOCl) as oxidant in heterogeneous Fenton-like system for methylene blue (MB) decolorization. The MnO2 -MCP was characterized by XRD, SEM, EDS and BET analysis. The decolorization efficiencies of MB/MnO2 -MCP, MB/NaClO, (MB after filtrating MnO2 -MCP)/NaClO and MB/MnO2 -MCP/NaClO were compared, which confirmed the interaction ability between MnO2 -MCP and NaClO. After evaluating the role of adsorption of MB by MnO2 -MCP, the catalytic oxidation effects of MnO2 -MCP with NaClO on MB were exploited...
March 2, 2018: Journal of Environmental Management
A C S Marinho, T T To, R P Darveau, B P F A Gomes
AIM: To investigate the influence of auxiliary chemical substances (ACS) and calcium hydroxide [Ca(OH)2 ] dressings on LPS/lipid A detection and its functional ability in activating Toll-like receptor 4 (TLR4). METHODOLOGY: Fusobacterium nucleatum pellets were exposed to antimicrobial agents as following: 1) ACS: 5.25%, 2.5% and 1% sodium hypochlorite solutions (NaOCl), 2% chlorhexidine (CHX) (gel and solution) and 17% ethylenediaminetetraacetic acid (EDTA); 2) Intracanal medicament: Ca(OH)2 paste for various periods (1h, 24h, 7 days, 14 days and 30 days); 3) Combination of substances: a) 2...
March 5, 2018: International Endodontic Journal
Hong Seng Gan, Nicholas Yee Kwang Tee, Mohammad Raziun Bin Mamtaz, Kevin Xiao, Brandon Huey-Ping Cheong, Oi Wah Liew, Tuck Wah Ng
The appreciation and understanding of gas generation through processes is vital in biochemical education. In this work, an augmented reality tool is reported to depict the redox reaction between hydrogen peroxide and sodium hypochlorite solutions, two ubiquitous oxidizing agents, to create oxygen, a combustible gas. As it operates out of smartphones or tablets, students are able to conduct the exercise collaboratively, respond in a manner similar to an actual physical experiment, and able to depict the oxygen volume changes in relation to the volume of hydrogen peroxide of different concentrations used...
February 28, 2018: Biochemistry and Molecular Biology Education
Selen Küçükkaya Eren, Emel Uzunoğlu, Banu Sezer, Zeliha Yılmaz, İsmail Hakkı Boyacı
Objectives: This study aimed to introduce the use of laser-induced breakdown spectroscopy (LIBS) for evaluation of the mineral content of root canal dentin, and to assess whether a correlation exists between LIBS and scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS) methods by comparing the effects of irrigation solutions on the mineral content change of root canal dentin. Materials and Methods: Forty teeth with a single root canal were decoronated and longitudinally sectioned to expose the canals...
February 2018: Restorative Dentistry & Endodontics
Venkateshbabu Nagendrababu, Omer Sheriff Sultan, Sreedharan Kannathasan, Amir Shahreza Patel, Ebenezer Chitra, Prasanna Neelakantan, Fabian Davamani
Objectives: To determine the effect of root canal irrigants on the hydrophobicity and adherence of Staphylococcus epidermidis ( S. epidermidis ) to root canal dentin in vitro . Materials and Methods: Root dentin blocks ( n = 60) were randomly divided into 4 groups based on the irrigation regimen: group 1, saline; group 2, 5.25% sodium hypochlorite (NaOCl); group 3, 5.25% NaOCl followed by 17% ethylenediaminetetraacetic acid (EDTA); group 4, same as group 3 followed by 2% chlorhexidine (CHX)...
February 2018: Restorative Dentistry & Endodontics
G L Dou, N Wu, S Y Zhao, B Xia
OBJECTIVE: To evaluate the two-year outcomes of primary molars pulpotomy using mineral trioxided aggregate (MTA) and to find out the potential influence factor, with the help of electronic medical record database. METHODS: Children who received primary molars pulpotomy in the Department of Pediatric Dentistry in Peking University School and Hospital of Stomatology from May, 2014 to November, 2015 were searched in the Electronic Medical Record Database of Peking University School and Hospital of Stomatology, via the database for scientific research provided by the corporation of Kaientai...
February 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Banu Öter, Nursen Topçuog Lu, Mehmet K Tank, Sevi Burçak Çehreli
BACKGROUND: A successful primary root canal treatment depends on effective shaping and cleaning the root canal system and finally filling it with a hermetic sealer. Clinically, roots of primary teeth are difficult to shape and the irrigation/disinfection protocol has great importance on prognosis. OBJECTIVE: The present study evaluated the antibacterial efficiency of Endosafe (Orangedental GmbH & Co. KG), photo-activated disinfection (PAD; Orangedental GmbH & Co...
February 26, 2018: Photomedicine and Laser Surgery
Wenhui Li, Haidi Liu, Shuangde Li, Weiman Li, Yunfa Chen, Jiajia Gao, Yaqun Cao
A co-current flow rotating packed bed was applied to remove volatile organic compounds (VOCs) by sodium hypochlorite (NaClO) and surfactant (sodium dodecyl benzene sulfonate, SDBS) from air stream. Xylene was used as a model VOC herein. The effect of pH, concentration of NaClO and SDBS solution, liquid flow rate, gas flow rate and rotational speed on xylene removal efficiency and overall mass transfer coefficient (KG a) were discussed. Then, a correlation for KG a of the co-current rotating packed bed was proposed by fitting the experimental data of KG a and independent variables of liquid/gas ratio, rotational speed, pH, NaClO concentration and treatment time, which was in good agreement with the experimental data (the deviation≤±30%)...
February 2018: Journal of Environmental Sciences (China)
Outi Swanljung, Miira M Vehkalahti
INTRODUCTION: The aim of this study was to assess the role of root canal irrigants and medicaments in endodontic injuries verified in Finland and to estimate the rate of such events over time. METHODS: The study material comprised all endodontic injuries verified by the Patient Insurance Centre in 2002 to 2006 (n = 521) and 2011 to 2013 (n = 449). The data, based on patient documents scrutinized by 2 specialists in endodontics, included patients' and dentists' sex and age and the service sector...
February 16, 2018: Journal of Endodontics
Carlos Estrela, Rodrigo Costa E Silva, Roberta Cerasi Urban, Pablo José Gonçalves, Júlio A Silva, Cyntia R A Estrela, Jesus Djalma Pecora, Ove A Peters
Objectives To determine the concentration of calcium, iron, manganese and zinc ions after the application of chelator to Enterococcus faecalis biofilms. Material and Methods Fifty bovine maxillary central incisors were prepared and inoculated with E. faecalis for 60 days. The following were used as irrigation solutions: 17% EDTA (pH 3, 7 and 10), 2.5% sodium hypochlorite (NaOCl) combined with 17% EDTA (pH 3, 7 and 10), distilled water (pH 3, 7 and 10), and 2.5% NaOCl. Each solution was kept in the root canal for five minutes...
2018: Journal of Applied Oral Science: Revista FOB
Keisuke Nakase, Hanae Fukushima, Tomoko Yukawa, Hidemasa Nakaminami, Takeshi Fujii, Norihisa Noguchi
BACKGROUND: The skin bacterium Propionibacterium acnes has been reported to be responsible for surgical site infections (SSIs). Skin disinfection before surgery therefore is of the utmost importance in the prevention of SSIs caused by skin bacteria. METHODS: We assessed the susceptibility of clinical isolates of two skin bacteria, P. acnes and Staphylococcus epidermidis, to disinfectants. RESULTS: The range of chlorhexidine digluconate (CHG) minimum inhibitory concentrations (MICs) for P...
February 15, 2018: Surgical Infections
Kenneth Schmidt, Chris Estes, Alex McLaren, Mark J Spangehl
BACKGROUND: Antiseptic and antibacterial solutions used for intraoperative irrigation are intended to kill bacteria and thereby decrease the incidence of surgical site infections. It is unknown if the concentrations and exposure times of irrigation solutions commonly used for prophylaxis in clean cases (povidone-iodine 0.35% for 3 minutes) are effective against bacteria in biofilm that are present in implant infections. Currently, povidone-iodine (0.35%), chlorhexidine (0.05%), sodium hypochlorite (0...
March 2018: Clinical Orthopaedics and related Research
David J Smith, Grant R Herges
The effects of a 6-h chlorine dioxide sanitation of alfalfa seed (0, 50, 100, and 200 mg/kg seed) on total coliform bacteria, seed germination, and the presence of chlorate and perchlorate residues in seed rinse, seed soak, and alfalfa sprouts was determined. Chlorate residues in 20,000 mg/L calcium hypochlorite, commonly used to disinfect seed, were quantified. Chlorine dioxide treatment reduced (P < 0.05) total coliforms on seeds with no effect (P > 0.05) on germination. Dose-dependent sodium chlorate residues were present in seed rinse (4...
February 14, 2018: Journal of Agricultural and Food Chemistry
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