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Sodium hypochlorite

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https://www.readbyqxmd.com/read/28342478/interactions-between-the-tetrasodium-salts-of-edta-and-1-hydroxyethane-1-1-diphosphonic-acid-with-sodium-hypochlorite-irrigants
#1
Philippe Biel, Dirk Mohn, Thomas Attin, Matthias Zehnder
INTRODUCTION: A clinically useful all-in-one endodontic irrigant with combined proteolytic and decalcifying properties is still elusive. In this study, the chemical effects of dissolving the tetrasodium salts of 1-hydroxyethane 1,1-diphosphonic acid (Na4HEDP) or Na4EDTA directly in sodium hypochlorite (NaOCl) irrigants in polypropylene syringes were assessed during the course of 1 hour. METHODS: The solubility of the salts in water was determined. Their compatibility with 1% and 5% NaOCl was measured by iodometric titration and in a calcium complexation experiment by using a Ca(2+)-selective electrode...
April 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28341380/low-energy-single-staged-anaerobic-fluidized-bed-ceramic-membrane-bioreactor-afcmbr-for-wastewater-treatment
#2
Muhammad Aslam, Perry L McCarty, Chungheon Shin, Jaeho Bae, Jeonghwan Kim
An aluminum dioxide (Al2O3) ceramic membrane was used in a single-stage anaerobic fluidized bed ceramic membrane bioreactor (AFCMBR) for low-strength wastewater treatment. The AFCMBR was operated continuously for 395days at 25°C using a synthetic wastewater having a chemical oxygen demand (COD) averaging 260mg/L. A membrane net flux as high as 14.5-17L/m(2)h was achieved with only periodic maintenance cleaning, obtained by adding 25mg/L of sodium hypochlorite solution. No adverse effect of the maintenance cleaning on organic removal was observed...
March 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28340756/simultaneous-quantification-of-iodine-and-high-valent-metals-via-icp-ms-under-acidic-conditions-in-complex-matrices
#3
Kristina Brix, Christina Hein, Jonas Michael Sander, Ralf Kautenburger
The determination of iodine as a main fission product (especially the isotopes I-129 and I-131) of stored HLW in a disposal beside its distribution as a natural ingredient of many different products like milk, food and seawater is a matter of particular interest. The simultaneous ICP-MS determination of iodine as iodide together with other elements (especially higher valent metal ions) relevant for HLW is analytically very problematic. A reliable ICP-MS quantification of iodide must be performed at neutral or alkaline conditions in contrast to the analysis of metal ions which are determined in acidic pH ranges...
May 15, 2017: Talanta
https://www.readbyqxmd.com/read/28325624/clinical-outcomes-for-primary-molars-treated-by-different-types-of-pulpotomy-a%C3%A2-retrospective-cohort-study
#4
Heng-Yeh Kuo, Jr-Rung Lin, Wen-Hsi Huang, Meng-Ling Chiang
BACKGROUND/PURPOSE: Pulpotomy is the amputation of coronally infected pulp tissue to maintain the vitality and function of the radicular pulp. This study was designed to assess the clinical and radiographic success rates of primary molars treated by pulpotomy using diode laser, sodium hypochlorite, or no medication after a follow-up period of 24 months. METHODS: A retrospective study was conducted by evaluating the success rates of primary molars treated by pulpotomy with diode laser, sodium hypochlorite, or no medication according to the clinical symptoms and signs and radiographic features...
March 18, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28318172/-accidental-injection-of-sodium-hypochlorite-in-inferior-alveolar-nerve-block-anesthesia
#5
Li Hongyan, Xu Jian, Zhang Baorong, Jia Yue, Liu Minhua, Luo Yilang, Zhao Jing
Sodium hypochlorite (NaClO) has been widely used in clinical practice as one of the most efficient root canal irrigants. Its properties include broad-spectrum antimicrobial activity and ability to dissolve necrotic tissues. However, when used improperly, NaClO can cause a series of adverse reactions, such as mucosal inflammation, irritation, or injury. This paper presents a case of accidental injection of NaClO in inferior alveolar nerve block anesthesia.
December 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28306162/analysis-of-the-effects-of-several-decalcifying-agents-alone-and-in-combination-with-sodium-hypochlorite-on-the-chemical-composition-of-dentine
#6
T Tartari, L Bachmann, R F Zancan, R R Vivan, M A H Duarte, C M Bramante
AIM: To investigate the effects of several decalcifying agents alone and in combination with sodium hypochlorite (NaOCl) on the organic and inorganic components of dentine using Attenuated Total Reflectance in Fourier Transform Infrared Spectroscopy (ATR-FTIR). METHODOLOGY: Dentine slices from bovine teeth were submitted to (n=5): 0.9% saline, 9% and 18% etidronic acid (HEDP), 5% and 10% tetrasodium EDTA (EDTANa4 ), 17% trisodium EDTA (EDTAHNa3 ), and 0.5% and 2...
March 17, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28301017/intracanal-irrigating-solutions-prior-to-calcium-hydroxide-medication-and-its-effects-on-root-dentin-strength
#7
Leila Clarisse Hillesheim, Juliara Bellina Hoffmann, Daniela Peressoni Vieira Schuldt, Maybell Tedesco, Eduardo Antunes Bortoluzzi, Cleonice Silveira Teixeira
The aim of this study was to assess the effects of intracanal irrigation with sodium hypochlorite (NaOCl) and ethylenediaminetetracetic acid (EDTA) prior to calcium hydroxide medication on the compressive strength of root dentin. Forty-eight roots with single and straight canals were instrumented with a crown-down technique using Flexofile files and Gates Glidden burs, under 0.9% sodium chloride (NaCl) irrigation. Root canals were randomly separated into 4 groups (n=12), according to the irrigating solution: Control Group, 0...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28298975/evaluation-of-antimicrobial-and-antifungal-efficacy-of-chitosan-as-endodontic-irrigant-against-enterococcus-faecalis-and-candida-albicans-biofilm-formed-on-tooth-substrate
#8
Pankaj Yadav, Sarika Chaudhary, Rajendra K Saxena, Sangeeta Talwar, Sudha Yadav
BACKGROUND: Bacterial biofilms formed on the root canal wall are often difficult to remove. This study aimed to evaluate the cytotoxic effect and antibacterial efficacy of chitosan when used as root canal irrigant against E. Faecalis and Candida albicans biofilm formed on tooth substrate. MATERIAL AND METHODS: The present study evaluated antibacterial effect of 0.25% Chitosan, 0.5% Chitosan, 2% chlorhexidine and 3% sodium hypochlorite against Enterococcus faecalis and Candida Albicans...
March 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28294602/surface-cleaning-and-disinfection-efficacy-assessment-of-four-chlorine-types-using-e-coli-and-the-ebola-surrogate-phi6
#9
Karin Gallandat, Marlene K Wolfe, Daniele S Lantagne
In the 2014 West African Ebola outbreak, international organizations provided conflicting recommendations for disinfecting surfaces contaminated by uncontrolled patient spills. We compared the efficacy of four chlorine solutions (sodium hypochlorite, sodium dichloroisocyanurate, high-test hypochlorite, and generated hypochlorite) for disinfection of three surface types (stainless steel, heavy duty tarp, and nitrile), with and without pre-cleaning practices (pre-wiping and/or covering) and soil load. The test organisms were E...
March 15, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28292337/primary-tooth-vital-pulp-therapy-a-systematic-review-and-meta-analysis
#10
James A Coll, N Sue Seale, Kaaren Vargas, Abdullah A Marghalani, Shahad Al Shamali, Laurel Graham
PURPOSE: This systematic review and meta-analysis assessed outcomes in primary teeth for the vital pulp therapy (VPT) options of indirect pulp therapy (IPT), direct pulp capping (DPC), and pulpotomy after a minimum of 12 months to determine whether one VPT was superior. METHODS: The following databases were searched from 1960 to September 2016: MEDLINE, EMBASE, CENTRAL, EBSCO, ICTRP, Dissertation abstracts, and grey literature for parallel and split-mouth randomized controlled trials of at least 12 months duration comparing the success of IPT, DPC, and pulpotomy in children with deep caries in primary teeth...
January 15, 2017: Pediatric Dentistry
https://www.readbyqxmd.com/read/28284611/dead-mouse-hopping-tyzzer-s-disease-in-spinifex-hopping-mice-notomys-alexis
#11
Hayley J Stannard, Melissa L Tulk, Julie M Old
Tyzzer's disease is caused by Clostridium piliformes and affects a wide range of domestic and wildlife species. Non-descript signs, if any, and a short incubation period make Tyzzer's disease difficult to diagnose and treat before death occurs. Here we describe an unexpected outbreak of Tyzzer's disease in a colony of native Australian spinifex hopping-mice (Notomys alexis). In this study captive hopping-mice were used in a nutrition trial (n=11), and others were housed in close proximity (n=4). During the nutrition trial, two hopping-mice exhibited signs of lethargy and diarrhoea, and were removed from the trial but died soon after...
March 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28276583/effect-of-photodynamic-therapy-in-combination-with-various-irrigation-protocols-on-an-endodontic-multispecies-biofilm-ex-vivo
#12
D Hoedke, C Enseleit, D Gruner, H Dommisch, S Schlafer, I Dige, K Bitter
AIM: To analyse the antibacterial effect of photodynamic therapy (PDT) in combination with various irrigation protocols on a multispecies biofilm in root canals ex vivo. METHODOLOGY: A total of 160 extracted human single-rooted teeth were divided into four groups (n = 40). In group (G) 1, root canals were instrumented up to size 60 (control group), whereas in G 2 - 4 canals were enlarged up to size 40. All root canals were inoculated with a multispecies biofilm (Enterococcus faecalis, Streptococcus oralis, Prevotella intermedia) for five days...
March 9, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28275851/the-effect-of-chemical-treatments-on-lampenflora-and-a-collembola-indicator-species-at-a-popular-tour-cave-in-california-usa
#13
Erik Meyer, L Don Seale, Brianne Permar, Andrew McClary
Growth of invasive, opportunistic plants (i.e. lampenflora) in popular tour caves is a significant concern for land managers worldwide. Numerous chemicals at various concentrations have been utilized to remove phototrophic lampenflora colonizing artificially lit surfaces within these caves; however formulations, effectiveness, and impacts appear anecdotal and temporally limited. At Crystal Cave, Sequoia National Park, California, we study lampenflora and cave springtail (Tomocerus celsus) response to a single 0...
March 8, 2017: Environmental Management
https://www.readbyqxmd.com/read/28266133/effectiveness-of-a-polyhexanide-irrigation-solution-on-methicillin-resistant-staphylococcus-aureus-biofilms-in-a-porcine-wound-model
#14
Stephen C Davis, Andrew Harding, Joel Gil, Fernando Parajon, Jose Valdes, Michael Solis, Alex Higa
Irrigation and removal of necrotic debris can be beneficial for proper healing. It is becoming increasingly evident that wounds colonized with biofilm forming bacteria, such as Staphylococcus aureus (SA), can be more difficult to eradicate. Here we report our findings of the effects of an irrigation solution containing propyl-betaine and polyhexanide (PHMB) on methicillin-resistant Staphylococcus aureus (MRSA) biofilms in a porcine wound model. Thirty-nine deep partial thickness wounds were created with six wounds assigned to one of six treatment groups: (i) PHMB, (ii) Ringer's solution, (iii) hypochlorous acid/sodium hypochlorite, (iv) sterile water, (v) octenidine dihydrochloride, and (vi) octenilin...
March 7, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28258812/antibacterial-efficacy-of-octenisept-alexidine-chlorhexidine-and-sodium-hypochlorite-against-enterococcus-faecalis-biofilms
#15
Sundus Bukhary, Hanan Balto
INTRODUCTION: The purpose of this study was to evaluate the antibacterial effectiveness of Octenisept (OCT; Schülke & Mayr GmBH, Norderstedt, Germany), 1% alexidine (ALX) (Santa Cruz Biotechnology, Inc, Santa Cruz, CA), and 2% chlorhexidine (CHX) against Enterococcus faecalis biofilm using confocal laser scanning microscopy. METHODS: Root dentin discs were prepared from extracted human teeth, sterilized, and inoculated with E. faecalis strain (ATCC 29212) to establish 3-week-old biofilm model...
April 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28258273/additive-and-reducing-effects-between-calcium-hydroxide-and-current-irrigation-solutions
#16
Zahed Mohammadi, Hamid Jafarzadeh, Sousan Shalavi, Rasoul Sahebalam, Jun Ichiro Kinoshita
Microorganisms should be considered to have the major role in starting and perpetuation of pulpo-periapical diseases. Using intracanal medicaments is necessary to gain a bacteria-free environment in the canal system. Calcium hydroxide (abbreviated as Ca(OH)2), which is the most commonly used medicament in endodontic therapy, has been shown to be effective against primary sources of infection; however, its effectiveness against some microorganisms, such as Candida albicans and Enterococcus faecalis has not been proved...
March 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28258267/evaluation-of-4-sodium-hypochlorite-in-eliminating-enterococcus-faecalis-from-the-root-canal-when-used-with-three-irrigation-methods-an-in-vitro-study
#17
Harsh Priyank, Vinisha Pandey, Abhishek Bagul, Kishore Kumar Majety, Parul Verma, Basanta Kumar Choudhury
INTRODUCTION: Endodontic treatment removes all pathogens, such as Enterococcus faecalis from pulp and root canals. The aim of this study is to assess the usefulness of sodium hypo-chlorite (NaOCl) in removing E. faecalis from the root canal used with three different irrigation methods. MATERIALS AND METHODS: This study was conducted on freshly extracted maxillary incisors. After biomechanical preparation, root canals were injected with E. faecalis. Three groups were made which contained 30 teeth in each group; 2 mL of NaOCl solution was used for irrigation followed by agitation with K-files in group I; 2 mL of NaOCl solution was used for irrigation and ultrasonic agitation was done in group II...
March 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28253178/the-effect-of-proanthocyanidins-and-chlorhexidine-on-the-bond-strength-of-glass-fiber-posts-to-root-dentin
#18
Carla Cecilia Alandia-Román, Sergio Augusto Freitas Vincenti, Francisca Daniele Jardilino Silami, Renata Espíndola Silveira, Gustavo Col Dos Santos Pinto, Fernanda de Carvalho Panzeri Pires-de-Souza
In this study, the influence of different irrigant solutions applied before cementation on the bond strength (BS) of glass fiber posts to root dentin was evaluated. Thirty endodontically treated maxillary canines of similar length were selected and divided into 3 groups (n = 10) according to the irrigant solution used before post cementation: 1% sodium hypochlorite (NaOCl; control), 2% chlorhexidine (CHX), or a 6.5% grape seed extract (GSE) cross-linking agent. After cementation of the posts, the roots were transversely sectioned to create 2 discs (2 mm) for each of the root thirds: coronal, middle, and apical...
March 2017: General Dentistry
https://www.readbyqxmd.com/read/28248086/mass-spectrometry-identification-of-n-chlorinated-dipeptides-in-drinking-water
#19
Guang Huang, Ping Jiang, Xing-Fang Li
We report the identification of N-chlorinated dipeptides as chlorination products in drinking water using complementary high-resolution quadrupole time-of-flight (QTOF) and quadrupole ion-trap mass spectrometry techniques. First, three model dipeptides, tyrosylglycine (Tyr-Gly), tyrosylalanine (Tyr-Ala), and phenylalanylglycine (Phe-Gly), reacted with sodium hypochlorite, and these reaction solutions were analyzed by QTOF. N-Cl-Tyr-Gly, N,N-di-Cl-Tyr-Gly, N-Cl-Phe-Gly, N,N-di-Cl-Phe-Gly, N-Cl-Tyr-Ala, and N,N-di-Cl-Tyr-Ala were identified as the major products based on accurate masses, (35)Cl/(37)Cl isotopic patterns, and MS/MS spectra...
March 14, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28244230/confocal-laser-scanning-scanning-electron-and-transmission-electron-microscopy-investigation-of-enterococcus-faecalis-biofilm-degradation-using-passive-and-active-sodium-hypochlorite-irrigation-within-a-simulated-root-canal-model
#20
Saifalarab A Mohmmed, Morgana E Vianna, Matthew R Penny, Stephen T Hilton, Nicola Mordan, Jonathan C Knowles
Root canal irrigation is an important adjunct to control microbial infection. The aim of this study was to investigate the effect of 2.5% (wt/vol) sodium hypochlorite (NaOCl) agitation on the removal, killing, and degradation of Enterococcus faecalis biofilm. A total of 45 root canal models were manufactured using 3D printing with each model comprising an 18 mm length simulated root canal of apical size 30 and taper 0.06. E. faecalis biofilms were grown on the apical 3 mm of the models for 10 days. A total of 60 s of 9 ml of 2...
February 28, 2017: MicrobiologyOpen
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