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Emre Korkut, Emrah Torlak, Onur Gezgin, Hazal Özer, Yağmur Şener
OBJECTIVE: The objective of this study was to compare antibacterial and smear layer removal efficacy of the erbium:yttrium-aluminium-garnet (Er:YAG) laser irradiation by photon-induced photoacoustic streaming (PIPS), neodymium:yttrium-aluminium-garnet (Nd:YAG), and diode lasers and conventional irrigation agent in primary molar root canals. BACKGROUND: The selection, application, and activation of the irrigant are important factors affecting the success of the endodontic treatment...
June 15, 2018: Photomedicine and Laser Surgery
Josiane de Almeida, Bruna Casagrande Cechella, Anarela Vassen Bernardi, Andrea de Lima Pimenta, Wilson Tadeu Felippe
Context: To overcome the challenge imposed by the presence of biofilm and reach significant bacterial reduction of the root canals, many irrigants have been indicated during endodontic treatment, among them nanoparticles solutions. Aims: This study aims to evaluate the effectiveness of experimental solutions containing silver and zinc oxide nanoparticles (ZnO Np) and conventional endodontic irrigants against Enterococcus faecalis biofilm, in root canals. Methods: Seventy-six extracted human teeth were biomechanically prepared and sterilized...
May 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
Kavita Dube, Pradeep Jain, Arti Rai, Bonny Paul
Introduction: Treatment of mechanical exposure of the pulp during caries excavation presents a clinical challenge. In this case series of 15 patients, with a follow-up period of over a year, the outcome of direct pulp capping with Biodentine (septodont) after mechanical pulp exposure was assessed. Aim of Study: The aim of this study is to evaluate the outcome of direct pulp capping with Biodentine in deeply carious teeth when pulp was mechanically exposed during caries excavation and cavity preparation...
May 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
Alejandra Soledad Oriani, FermIn Sierra, Mónica Diana Baldini
Background: : There is evidence that drinking water could be a source of infections with pathogenic nontuberculous mycobacteria (NTM) potentially risky to human health. The aim was to investigate the resistance of two NTM isolated from drinking water, Mycobacterium gordonae and Mycobacterium chubuense, at different concentrations of chlorine (as sodium hypochlorite), used in drinking water sanitation. Methods: : The NTM were grown in suspension and in biofilms and were challenged with biocide for 10 and 60 min...
April 2018: International Journal of Mycobacteriology
Maliheh Akhlaghi, Amin Dorost, Kamaladdin Karimyan, Mohammad Reza Narooie, Hooshmand Sharafi
Disinfection of water refers to a special operation that is doing to kill or disable causative organisms (i.e. Pathogens) and in particular, intestinal bacteria. The aim of this pilot study is comparison of disinfection power of Chlorine dioxide and chlorine in a real dairy wastewater effluent. In this regard, firstly prepared two 220-l tanks made of polyethylene as reaction tanks and filled by effluent of a dairy wastewater treatment plant. Both tanks were equipped with mechanical stirrer. Then a Diaphragm dosing pumps with the maximum capacity of 3...
June 2018: Data in Brief
Mahima Tilakchand, Nisha Nitin Singh, Mahantesh Mrityunjay Yeli, Balaram D Naik
Aims and Objectives: The aim of this in vivo study was to evaluate the antibacterial efficacy of a diode LASER on the infected root canal system. Methodology: A total of forty patients with infected root canals were selected. The root canals were prepared mechanically, and irrigation was done with 3% sodium hypochlorite (NaOCl). Microbiological samples were collected before LASER treatment with the help of the master apical file (MAF) to full working length for subsequent microbiological examination...
May 2018: Journal of Conservative Dentistry: JCD
Akihiro Tsuchida, Koji Oshimo, Satoshi Horikoshi
Decomposition of urea in aqueous solution was carried out using a microwave discharge electrodeless lamp (MDEL) consisting of two photoreactors with a triple tube structure that generate vacuum-UV/UV light and reactive oxygen species (ROS) using microwaves (MW) as an energy source. The rate of decomposition of urea was highest under acidic conditions (pH 4) compared with those at pH 7 and 10.When used in combination with dispersed TiO2 , a photocatalyst, high decomposition efficiency was achieved with less power consumption...
June 12, 2018: Journal of Oleo Science
Cai Yanling, Liu Hongyan, Wei Xi, Crielaard Wim, Deng Dongmei
OBJECTIVE: Relacin is a synthetic molecule that targets RelA, an essential protein in a conserved bacterial stress response system. It was shown to inhibit bacterial growth. The aims of this study were to evaluate the antimicrobial effect of relacin combined with sodium hypochlorite (NaOCl) on Enterococcus faecalis biofilms and to evaluate the cytotoxicity of relacin. MATERIAL AND METHODS: 48-h E. faecalis OG1RF biofilms were treated by various concentrations of relacin in order to determine its inhibitory concentration...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
Marlos Barbosa-Ribeiro, Rodrigo Arruda-Vasconcelos, Fabio L Fabretti, Emmanuel J N L Silva, Gustavo De-Deus, Brenda P F A Gomes
This study evaluated the amount of apically extruded debris after chemo-mechanical preparation (CMP) using positive and negative pressure irrigation systems [Conventional irrigation (CI) and EndoVac (EV)] in association with different irrigants [6% Sodium Hypochlorite (NaOCl), 2% Chlorhexidine gel + saline solution (CHXg + SS), 2% Chlorhexidine solution (CHXs) or Saline solution (SS)]. Eighty mandibular premolars with single root canals were selected and randomly assigned into 8 groups (n = 10) according to the irrigation system and the irrigant used during CMP: G1 (EV + NaOCl), G2 (EV + CHXg + SS), G3 (EV + CHXs), G4 (EV + SS), G5 (CI + NaOCl), G6 (CI + CHXg + SS), G7 (CI + CHXs) and G8 (CI + SS)...
March 2018: Brazilian Dental Journal
C Ledesma, C Rosario, J Gracia-Mora, G Tapia, L Gutiérrez, H Sumano
The interaction of 3 water sanitizers (sodium hypochlorite, iodine-polyvinylpyrrolidone, and citrate) utilized in poultry production on antibacterial activity and bioavailability of amoxicillin trihydrate (AMX) were studied. Sanitizers were mixed with AMX in prepared water, the resulting substances were regarded as amoxicillin-sanitizer products (ASP). First, the in vitro antibacterial activity of each ASP was compared to that of AMX. Then, pharmacokinetics (PK) of ASP and AMX diluted in prepared water, were carried out in broiler-chickens...
April 20, 2018: Poultry Science
Amr Alraies, David K Cole, Jeremy S Rees, Carl Glasse, Nigel Young, Rachel J Waddington, Alastair J Sloan
OBJECTIVES: Dietary stains can be adsorbed into the dentin of teeth. Using Orange II as a model dietary stain, this study investigated the strength of its interaction with the mineral and protein components of dentin matrix and how hydrogen peroxide (H2 O2 ) treatment influences this interaction. METHODS: Dentin slices were prepared from human teeth and were either deproteinized (5.6% sodium hypochlorite, 12 days), demineralised (0.5 M EDTA, 3 days) or left as intact control samples...
June 9, 2018: Journal of Dentistry
P Neelakantan, D R Herrera, V Pecorari, B P F A Gomes
AIM: The aim of this systematic review was to answer the following question: In patients with primary endodontic infection, is there a statistically significant difference in the endotoxin levels after chemomechanical preparation with sodium hypochlorite (NaOCl) or chlorhexidine (CHX)?. METHODOLOGY: A protocol was prepared and registered on PROSPERO (CRD42017069996). Four electronic databases (MEDLINE via PubMeb, Scopus, Web of Science and Cochrane Library) were searched from their start dates to 1st March 2017 using strict inclusion and exclusion criteria and reviewed following PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses) guidelines...
June 9, 2018: International Endodontic Journal
Deverick J Anderson, Rebekah W Moehring, David J Weber, Sarah S Lewis, Luke F Chen, J Conrad Schwab, Paul Becherer, Michael Blocker, Patricia F Triplett, Lauren P Knelson, Yuliya Lokhnygina, William A Rutala, Daniel J Sexton
BACKGROUND: The hospital environment is a source of pathogen transmission. The effect of enhanced disinfection strategies on the hospital-wide incidence of infection has not been investigated in a multicentre, randomised controlled trial. We aimed to assess the effectiveness of four disinfection strategies on hospital-wide incidence of multidrug-resistant organisms and Clostridium difficile in the Benefits of Enhanced Terminal Room (BETR) Disinfection study. METHODS: We did a prespecified secondary analysis of the results from the BETR Disinfection study, a pragmatic, multicentre, crossover cluster-randomised trial that assessed four different strategies for terminal room disinfection in nine hospitals in the southeastern USA...
June 4, 2018: Lancet Infectious Diseases
Manikandan Ravinanthanan, Mithra N Hegde, Veena Shetty, Suchetha Kumari
Background: Effective management of smear layer ensures adequate clinical success. Use of sodium hypochlorite (NaOCl)/ethylenediaminetetraacetic acid regimen has been the gold standard with limitations. Commercial irrigants incorporate surface modifiers to address these drawbacks. The aim of this study was to evaluate the cytotoxicity of combination regimens on target and nontarget cell lines by trypan blue assay. Materials and Methods: Nonsurfactant combination regimen of chlorhexidine (CHX) and NaOCl (2% CHX + 2...
April 2018: Contemporary Clinical Dentistry
M C Noushad, Biji Balan, Shabhana Basheer, Shinsus Bin Usman, M K Muhammed Askar
Introduction: The spread of drug-resistant pathogens is one of the most serious threats to successful treatment of microbial diseases. Extracts of plants such as flowers, buds, seeds, leaves, twigs, bark, herbs, wood, fruits, and roots have evoked interest as sources of natural products. Irrigation with a broad-spectrum antiseptic substance and inter-appointment intracanal medication has become a standard regimen in root canal therapy. Aim: The aim of this study is to compare the antimicrobial efficacy of different natural extracts such as guava leaf extract, Aloe vera extract, papaya leaf extract, and cashew apple extract against Enterococcus faecalis and Candida albicans ...
April 2018: Contemporary Clinical Dentistry
Seyyed Mohammad Seyyed Alizadeh Ganji, Mohammad Hayati
The presence of cyanide ions in wastewater is dangerous to the health and life of living creatures, especially humans. Cyanide concentration should not exceed the acceptable limit in wastewaters to avoid their adverse effects to the environment. In this paper, in order to select the most appropriate method to remove cyanide from the wastewater of the Moteh gold mine, based on the experts' opinions, the use of calcium hypochlorite, sodium hypochlorite, and hydrogen peroxide was chosen as forerunning alternative in the form of a multi-stage model...
June 5, 2018: Environmental Science and Pollution Research International
Thaís M da Silva, Flávio Rf Alves, Márcia Ts Lutterbach, Maurício M Paiva, Dennis de Carvalho Ferreira
Aims: To compare the antibacterial activity of alexidine (ALX) alone or as a final irrigant in combination with sodium hypochlorite (NaOCl), with the most common canal irrigants, NaOCl and chlorhexidine (CHX). Materials and methods: Ninety-four root fragments from extracted human teeth were infected with Enterococcus faecalis for 24 h and then distributed into 4 groups of 20 fragments each. The NaOCl, CHX and ALX groups were immersed in 1 ml of 2.5% NaOCl, 2% CHX, and 1% ALX for 10 min, respectively...
2018: BDJ Open
T Tartari, C Wichnieski, L Bachmann, M Jafelicci, R M Silva, A Letra, R van der Hoeven, M A H Duarte, C M Bramante
AIM: To investigate the effects of combinations of several irrigants on the roughness and wettability of dentine, adhesion of Enterococcus faecalis and Candida albicans and adsorption of chlorhexidine (CHX) to the dentine. METHODOLOGY: Bovine dentine samples were prepared and their surface roughness standardized. The samples were distributed in groups (n=10) and subjected to one of the following irrigation protocols: G1 - saline solution; G2 - sodium hypochlorite (NaOCl); G3 - NaOCl + ethylenediaminetetraacetic acid (EDTA); G4 - NaOCl + peracetic acid (PAA); G5 - NaOCl + 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP); G6 - NaOCl + EDTA + CHX; G7 - NaOCl + PAA + CHX; G8 - NaOCl + HEDP + CHX; and G9 - mixture of NaOCl + HEDP...
June 4, 2018: International Endodontic Journal
Liz Paulson, Nidambur Vasudev Ballal, Abhishek Bhagat
INTRODUCTION: Sodium hypochlorite (NaOCl) is the main irrigant to clean root canals. Decalcifying agents are advocated as additional means to condition the root dentin. The aim of this study was to evaluate the effect of alternating (EDTA) or continuous 1-hydroxyethane 1,1-diphosphonic (HEDP) chelation in conjunction with NaOCl irrigation on the pushout bond strength of Biodentine (Septodont, Saint Maur des Fosses, France). METHODS: Single root canals of 50 extracted, mature human teeth were divided into 5 groups (n = 10) and enlarged using rotary instruments...
June 1, 2018: Journal of Endodontics
Violaine Smaïl-Faugeron, Anne-Marie Glenny, Frédéric Courson, Pierre Durieux, Michele Muller-Bolla, Helene Fron Chabouis
BACKGROUND: In children, dental caries (tooth decay) is among the most prevalent chronic diseases worldwide. Pulp interventions are indicated for extensive tooth decay. Depending on the severity of the disease, three pulp treatment techniques are available: direct pulp capping, pulpotomy and pulpectomy. After treatment, the cavity is filled with a medicament. Materials commonly used include mineral trioxide aggregate (MTA), calcium hydroxide, formocresol or ferric sulphate.This is an update of a Cochrane Review published in 2014 when insufficient evidence was found to clearly identify one superior pulpotomy medicament and technique...
May 31, 2018: Cochrane Database of Systematic Reviews
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