نتایج جستجو برای: hypochlorite solution

تعداد نتایج: 467392  

Journal: :The Analyst 2012
Jia Zhang Xiaolei Wang Xiurong Yang

In this article, we report a colorimetric approach for the determination of hypochlorite (OCl(-)) with gold nanoparticles (Au NPs). The test proceeds as two individual steps and selectivity is developed based on the strong oxidizing ability of hypochlorite. In concentrated phosphate buffer (PB), the red solution of citrate-capped Au NPs could be stabilized by the chemisorption of 11-mercaptound...

Journal: :Plant physiology 1936
R E Girton

Before carrying out a respiration study on detached roots, it was necessary to work out a method for obtaining root tissues free from microorganisms. This was essential because fungi give off considerable carbon dioxide in respiration; and the production of respiratory carbon dioxide by asterile roots may be entirely masked by the presence of these microorganisms. Following the method outlined ...

2006
Fernanda Vieira Medina Manoel Damião Sousa Jacy Ribeiro Carvalho Heid Sueli Leme dos Santos Melissa Albanese Mezzena Lucas da Fonseca Roberti Garcia

OBJECTIVES The aim of this study was to determine the effect of Er:YAG laser irradiation used to clean dentinal walls on the apical sealing of root canals filled with different types of sealers. BACKGROUND DATA Laser application to the dentinal walls removed debris, rendering the root canals free of smear layers and leaving the dentinal canaliculi open. METHODS Sixty-four maxillary canines ...

Journal: :Clinical oral implants research 2010
Martin Gosau Sebastian Hahnel Frank Schwarz Till Gerlach Torsten E Reichert Ralf Bürgers

OBJECTIVE The aim of this human in vivo pilot study was to evaluate the efficacy of six antimicrobial agents on the surface decontamination of an oral biofilm attached to titanium implants. DESIGN For in vivo biofilm formation, we fixed titanium specimens to individual removable acrylic upper jaw splints (14 specimens in every splint), which were worn by four volunteers overnight for 12 h. Th...

2016
Pablo Castelo-Baz Purificación Varela-Patiño Giuseppe Cantatore Ana Domínguez-Perez Manuel Ruíz-Piñón Ramón Miguéns-Vila Benjamín Martín-Biedma

BACKGROUND The efficacy of endodontic irrigation procedures can be compromised by the complexity of the root canal system. Delivering irrigants to the apical third of curved canals presents a particular challenge to endodontists. This study compared the effects of two ultrasonic irrigation techniques on the penetration of sodium hypochlorite into the main canal and simulated lateral canals of c...

2015
Marcela Moreira SALLES Maurício Malheiros BADARÓ Carolina Noronha Ferraz de ARRUDA Vanessa Maria Fagundes LEITE Cláudia Helena Lovato da SILVA Evandro WATANABE Viviane de Cássia OLIVEIRA Helena de Freitas Oliveira PARANHOS

UNLABELLED To preserve oral health and to maintain the prosthetic devices, it is important not only to improve the properties of commonly known hygiene products, but also to investigate new materials with antimicrobial action. Objectives This study evaluated the antimicrobial activity of sodium hypochlorite (0.25% and 0.50%) and 10% Ricinus communis' solutions against specific microorganisms. ...

Journal: :Journal of endodontics 2015
Ferdinand de Hemptinne Gunter Slaus Mathieu Vandendael Wolfgang Jacquet Roeland J De Moor Peter Bottenberg

INTRODUCTION Heating a sodium hypochlorite solution improves its effectiveness. The aim of this study was to measure the in vivo temperature changes of sodium hypochlorite solutions that were initially preheated to 66°C or at room temperature inside root canals during routine irrigation. METHODS Thirty-five root canals were prepared to ISO size 40 with 4% taper. A type K (nickel-chromium-nick...

2015
Elnaz Moslehifard Farzaneh Lotfipour Mahmood Robati Anaraki Elnaz Shafee Shabnam Tamjid-shabestari Tahereh Ghaffari

OBJECTIVES The purpose of this experimental study was to compare the disinfection efficacy of sodium hypochlorite and peroxygenic acid (Virkon) solutions for dental stone casts contaminated with microbial strains. MATERIALS AND METHODS A total of 960 spherical stone beads with a diameter of 10 mm were prepared and used as carriers of bacterial inoculums. They were individually inoculated by s...

Journal: :Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology 2001
R A Wood P A Eggleston C Rand W J Nixon S Kanchanaraksa

BACKGROUND Although the importance of cockroach allergen in chronic asthma has now been well defined, little progress has been made in the control of cockroach allergen in infested homes. OBJECTIVE The objective of this study was to examine the ability of a combination of professional pest extermination and household cleaning using a solution of sodium hypochlorite to reduce cockroach infesta...

Journal: :Journal of Rawalpindi Medical College (Print) 2022

Objective: To compare the effectiveness of 2.5% sodium hypochlorite and 2% chlorhexidine, in reduction frequency pain 24 hours after endodontic treatment teeth with chronic apical periodontitis Study design Setting: Randomized Clinical Trial conducted –removed for blind review--from July 2018 to December 2018. Methodology: A total 60 patients requiring management pulp necrosis were randomly all...

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