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Sodium hypochlorite

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https://www.readbyqxmd.com/read/28539937/chlorhexidine-prevents-root-dentine-mineral-loss-and-fracture-caused-by-calcium-hydroxide-over-time
#1
Michael Ranniery Garcia Ribeiro, Érika Bárbara Abreu Fonseca Thomaz, Darlon Martins Lima, Tarcísio Jorge Leitão, José Bauer, Soraia De Fátima Carvalho Souza
Purpose. To evaluate the mineral ion loss of root dentine after treatment with 2% chlorhexidine solution (CHX) and to compare its yield and flexural strength (fs) after exposure to calcium hydroxide [Ca(OH)2]. Materials and Methods. Dentine bars (DB) were made from 90 roots of bovine incisors and randomized into three groups: GControl: distilled/deionized water (DDW), GNaOCl: 2.5% sodium hypochlorite + 17% EDTA, and GCHX: CHX + DDW. The release of phosphate (PO4) and calcium (Ca) ions was measured by spectrophotometry...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28537349/effects-of-topical-antiseptic-solutions-used-during-total-knee-arthroplasty-on-suture-tensile-strength
#2
Jared M Newman, Jaiben George, Jeffery T Shepherd, Alison K Klika, Carlos A Higuera, Viktor E Krebs
INTRODUCTION: Irrigating a surgical wound with an antiseptic solution is commonly performed while suturing following a total knee arthroplasty (TKA) to help prevent wound complications. The purpose of this study was to: 1) evaluate the mean load to failure of different sutures, and 2) compare the mean load to failure of the sutures after soaking in four different antiseptic solutions. MATERIALS AND METHODS: Load-to-failure tests were conducted on four sets of comparable sutures (eight sutures) from two different companies Ethicon Inc...
May 24, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28531182/selection-of-a-biosafety-level-1-bsl-1-surrogate-to-evaluate-surface-disinfection-efficacy-in-ebola-outbreaks-comparison-of-four-bacteriophages
#3
Karin Gallandat, Daniele Lantagne
The 2014 West African Ebola virus disease outbreak was the largest to date, and conflicting, chlorine-based surface disinfection protocols to interrupt disease transmission were recommended. We identified only one study documenting surface disinfection efficacy against the Ebola virus, showing a >6.6 log reduction after 5-minute exposure to 0.5% sodium hypochlorite (NaOCl) based on small-scale tests (Cook et al. (2015)). In preparation for future extensive, large-scale disinfection efficacy experiments, we replicated the Cook et al...
2017: PloS One
https://www.readbyqxmd.com/read/28527851/intentional-replantation-of-an-avulsed-immature-permanent-incisor-a-case-report
#4
Claudio Maniglia-Ferreira, Fabio de Almeida Gomes, Marcelo de Morais Vitoriano
This case report discusses the successful endodontic treatment of an open apex maxillary right permanent central incisor that had been avulsed and incorrectly replanted in a 7-year-old patient. The tooth was carefully re-extracted followed by cleaning of the alveolar socket and immediate replantation. However, pulp necrosis was diagnosed, and regenerative endodontic treatment was performed. The root canal system was disinfected by passive ultrasonic irrigation with 2.5% sodium hypochlorite. At the first visit, the tooth was repositioned and immobilized with an appropriate semirigid splint...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28526786/impact-of-acanthamoeba-cysts-on-stress-resistance-of-salmonella-enterica-serovar-typhimurium-yersinia-enterocolitica-4-o-3-listeria-monocytogenes-1-2a-and-escherichia-coli-o-26
#5
Ellen Lambrecht, Julie Baré, Koen Sabbe, Kurt Houf
The formation of robust resting cysts enables Acanthamoeba to resist harsh environmental conditions. This study investigated to what extent these cysts are resistant to physical and chemical stresses as applied in food industry cleaning and disinfection procedures. Moreover it was assessed whether certain intracystic meatborne bacterial pathogens are more stress-resistant than free-living bacterial monocultures and if intracystic passage and subsequent association with trophozoites induces cross-tolerance towards other stressors...
May 19, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28525784/sodium-hypochlorite-as-an-alternative-to-hydrogen-peroxide-in-fenton-process-for-industrial-scale
#6
Jamshid Behin, Abbas Akbari, Mohsen Mahmoudi, Mehdi Khajeh
In present work, the treatment of aromatic compounds of simulated wastewater was performed by Fenton and NaOCl/Fe(2+) processes. The model solution was prepared based on the wastewater composition of Diisocyanate unit of Karoon Petrochemical Company/Iran containing Diamino-toluenes, Nitro-phenol, Mononitro-toluene, Nitro-cresol, and Dinitro-toluene. Experiments were conducted in a batch mode to examine the effects of operating variables such as pH, oxidant dosages, ferrous ion concentration and numbers of feeding on COD removal...
May 9, 2017: Water Research
https://www.readbyqxmd.com/read/28520711/inhalational-chlorine-injuries-at-public-aquatic-venues-california-2008-2015
#7
Jason A Wilken, Michele DiMaggio, Matthew Kaufmann, Kevin O'Connor, Svetlana Smorodinsky, Christina Armatas, Tracy Barreau, Richard Kreutzer, Lino Ancheta
In June 2015, personnel from California's Contra Costa Health Services Environmental Health and Hazardous Materials (hazmat) divisions were alerted to a possible chemical release at a swimming pool in an outdoor municipal water park. Approximately 50 bathers were in the pool when symptoms began; 34 (68%) experienced vomiting, coughing, or eye irritation. Among these persons, 17 (50%) were treated at the scene by Contra Costa's Emergency Medical Services (EMS) and released, and 17 (50%) were transported to local emergency departments; five patients also were evaluated later at an emergency department or by a primary medical provider...
May 19, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28516285/intracellular-morphological-changes-in-staphylococcus-aureus-induced-by-treatment-with-sodium-hypochlorite
#8
Shiori Ujimine, Shigenobu Tone, Mineki Saito, Sakuo Yamada
Sodium hypochlorite (NaOCl) is commonly used as a disinfectant; however, its bactericidal mechanism has not yet been clarified. In the present study, the bactericidal mechanism of NaOCl was examined using microscopy and gel electrophoresis techniques with Staphylococcus aureus strain 209P. S. aureus cells treated with 500 and 1000 ppm NaOCl for 5 and 15 min were observed by SEM and TEM. SEM images of the bacterial cells treated with NaOCl showed an irregular surface, with cells being partially invaginated...
May 17, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28512652/comparison-of-simplistic-biofilm-models-for-%C3%A2-evaluating-irrigating-solutions
#9
Maximilian Gänsbauer, Andreas Burkovski, Matthias Karl, Tanja Grobecker-Karl
OBJECTIVE: Many innovations have recently been implemented in the field of endodontics, often based on a variety of in-vitro/ex-vivo test setups. It was the goal of this research to compare different biofilm models for evaluating the effectiveness of rinsing solutions. METHOD AND MATERIALS: Three different models have been applied in this study, including petri dishes with nutrient medium, arrays of human dentin disks, and split bovine root segments. The susceptibility of biofilms formed by Enterococcus faecalis to commonly used endodontic irrigants was tested...
May 16, 2017: Quintessence International
https://www.readbyqxmd.com/read/28512536/effect-of-smear-clear-and-some-other-commonly-used-irrigants-on-dislodgement-resistance-of-mineral-trioxide-aggregate-to-root-dentin
#10
Mona Sadegh, Hasti Sohrabi, Mohamadjavad Kharazifard, Farzaneh Afkhami
BACKGROUND: This study aimed to assess the push-out bond strength of mineral trioxide aggregate (MTA) to root canal dentin after irrigation with Smear Clear in comparison with 2.5% sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX) and saline as commonly used root canal irrigants. MATERIAL AND METHODS: The coronal and mid-root areas of maxillary anterior teeth were horizontally sectioned into one-millimeter thick slices. The root canal lumen of dentinal slices was dilated using a diamond bur with 1...
May 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28512487/comparative-antimicrobial-efficacy-of-eucalyptus-galbie-and-myrtus-communis-l-extracts-chlorhexidine-and-sodium-hypochlorite-against-enterococcus-faecalis
#11
Mahdieh Nourzadeh, Arezu Amini, Farzaneh Fakoor, Maryam Raoof, Fariba Sharififar
INTRODUCTION: The aim of this study was to evaluate the antimicrobial effect of Eucalyptusgalbie and Myrtus communis L. methanolic extracts, chlorhexidine (CHX) and sodium hypochlorite (NaOCl) on Enterococcus faecalis (E. faecalis) as the predominant species isolated from infected root canals. METHODS AND MATERIALS: One hundred twenty mandibular premolars were randomly divided into 8 groups: Eucalyptusgalbie (E. galbie) 12.5 mg/mL, Myrtus communis L. (M. communis L...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512283/unusual-root-canal-irrigation-solutions
#12
Zahed Mohammadi, Hamid Jafarzadeh, Sousan Shalavi, Jun-Ichiro Kinoshita
Microorganisms and their by-products play a critical role in pulp and periradicular pathosis. Therefore, one of the main purposes of root canal treatment is disinfection of the entire system of the canal. This aim may be obtained using mechanical preparation, chemical irrigation, and temporary medication of the canal. For this purpose, various irrigation solutions have been advocated. Common root canal irrigants, such as sodium hypochlorite, chlorhexidine, and a mixture of tetracycline, acid, and detergent have been extensively reviewed...
May 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28511520/effect-of-trauma-to-primary-tooth-on-permanent-maxillary-incisors-a-clinical-case-report
#13
Bhawana Gupta, Sachin Gupta, Jitesh Wadhwa, Alpa Gupta
Trauma to primary tooth leads to abnormal variations in crown and root canals of permanent teeth that presents a challenge in diagnosis and clinical management to the practitioner. This article presents a detailed case report of the endodontic treatment of a three canalled maxillary central incisor and maxillary lateral incisor having single canal with open apex linked with periodontal defect. Root canals were prepared with hand files and canals were irrigated with 2.5% sodium hypochlorite solution. Calcium hydroxide was placed as an intracanal medicament...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28508523/the-effect-of-sodium-hypochlorite-concentration-and-irrigation-needle-extension-on-biofilm-removal-from-a-simulated-root-canal-model
#14
Saifalarab A Mohmmed, Morgana E Vianna, Matthew R Penny, Stephen T Hilton, Jonathan C Knowles
To investigate the effect of sodium hypochlorite concentration and needle extension on removal of Enterococcus faecalis biofilm, sixty root canal models were 3D printed. Biofilms were grown on the apical 3 mm of the canal for 10 days. Irrigation for 60s with 9 mL of either 5.25% or 2.5% NaOCl or water was performed using a needle inserted either 3 or 2 mm from the canal terminus and imaged using fluorescence microscopy and residual biofilm percentages were calculated using imaging software. The data were analysed using analysis of covariance and two-sample t-tests...
May 16, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28503475/the-use-of-auxiliary-devices-during-irrigation-to-increase-the-cleaning-ability-of-a-chelating-agent
#15
Marina Carvalho Prado, Fernanda Leal, Renata Antoun Simão, Heloisa Gusman, Maíra do Prado
OBJECTIVES: This study investigated the cleaning ability of ultrasonically activated irrigation (UAI) and a novel activation system with reciprocating motion (EC, EasyClean, Easy Equipamentos Odontológicos) when used with a relatively new chelating agent (QMix, Dentsply). In addition, the effect of QMix solution when used for a shorter (1 minute) and a longer application time (3 minutes) was investigated. MATERIALS AND METHODS: Fifty permanent human teeth were prepared with K3 rotary system and 6% sodium hypochlorite...
May 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28500969/oxidation-of-the-antibacterial-agent-norfloxacin-during-sodium-hypochlorite-disinfection-of-marine-culture-water
#16
Yuanyuan Zhang, Chuan Rong, Yanqun Song, Yinghui Wang, Jiying Pei, Xinying Tang, Ruijie Zhang, Kefu Yu
Chlorination disinfection and antibiotic addition are two universal processes of marine culture. The generation of disinfection byproducts (DBPs) is unavoidable. Antibiotic residue not only pollutes water but also acts as a precursor to the production of new DBPs. The fate of antibiotic norfloxacin (NOR) in chlorination disinfection was investigated. It was observed that NOR could be oxidized by disinfection agent sodium hypochlorite, but the oxidation rate varied considerably with the type of disinfected water...
May 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/28496517/root-canal-irrigants-and-dentin-bonding-an-update
#17
REVIEW
Zahed Mohammadi, Shapour Yaripour, Sousan Shalavi, Flavio Palazzi, Saeed Asgary
The purpose of the review was to assess the effect of root canal irrigants on dentin bonding. A PubMed-based search was conducted on the articles published from 1980 to 2016. A brief overview and reviewing the effect on dentin bonding of common root canal irrigation solutions such as sodium hypochlorite (NaOCl), chlorhexidine (CHX), ethylenediaminetetraacetic acid (EDTA), mixture of a tetracycline, acid and a detergent (MTAD) and ozone was conducted. Findings showed that, depending on the type of dentin bonding, using NaOCl may decrease, increase or not affect the bond strength...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28496013/enhancement-of-bactericidal-effects-of-sodium-hypochlorite-in-chiller-water-with-food-additive-grade-calcium-hydroxide
#18
Chiharu Toyofuku, Md Shahin Alam, Masashi Yamada, Miyuki Komura, Mayuko Suzuki, Hakimullah Hakim, Natthanan Sangsriratanakul, Dany Shoham, Kazuaki Takehara
An alkaline agent, namely food additive grade calcium hydroxide (FdCa(OH)2) in solution at 0.17%, was evaluated for its bactericidal efficacies in chiller water with sodium hypochlorite (NaOCl) at a concentration of 200 ppm total residual chlorine. Without organic material presence, NaOCl could inactivate Salmonella Infantis and Escherichia coli within 5 sec, but in the presence of fetal bovine serum (FBS) at 0.5%, the bactericidal effects of NaOCl were diminished completely. FdCa(OH)2 solution required 3 min to inactivate bacteria with or without 5% FBS...
May 12, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28485472/relevance-of-the-main-postharvest-handling-operations-on-the-development-of-brown-rot-disease-on-stone-fruits
#19
M Bernat, J Segarra, C Casals, N Teixidó, R Torres, J Usall
BACKGROUND: Brown rot caused by Monilinia spp. is one of the most important postharvest diseases of stone fruit. The aim of this study was evaluate the relevance of the main postharvest operations of fruit; hydrocooling, cold room, water dump, sorting and cooling tunnel in the development of M. laxa on peaches and nectarines artificially infected 48, 24 or 2 hours before postharvest operations. RESULTS: Commercial hydrocooling operation reduced incidence to 10 % in 'Pp 100' nectarine inoculated 2 and 24 hours before this operation however in 'Fantasia' nectarine incidence was not reduced, although lesion diameter was decreased in all studied varieties...
May 9, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28484231/effect-of-canal-anastomosis-on-periapical-fluid-pressure-build-up-during-needle-irrigation-in-single-roots-with-double-canals-using-a-polycarbonate-model
#20
Qi Huang, Jonathan B Barnes, G John Schoeffel, Bing Fan, Candice Tay, Brian E Bergeron, Lisiane F Susin, Jun-Qi Ling, Li-Na Niu, Franklin R Tay
Sodium hypochlorite is an effective irrigant for chemical debridement of root canals. However, increasing the intracanal pressure during irrigant delivery may result in irrigant extrusion into the bone and soft tissues surrounding the tooth. Because clinicians often encounter teeth with intracanal communications, the objective of the present study was to examine the effects of canal anastomosis on the generation of periapical fluid pressure at different fluid flow rates and insertion depths. Two similar polycarbonate models were used to simulate a single root with double canals, one containing, and the other without communicating channels between the canals...
May 8, 2017: Scientific Reports
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