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https://www.readbyqxmd.com/read/29156876/the-comparison-of-various-disinfectants-efficacy-on-staphylococcus-aureus-and-pseudomonas-aeruginosa-biofilm-layers
#1
Hatice Köse, Nur Yapar
Background/aim: Because biofilms are resistant to antibiotics and biocides, they usually cause chronic persistent infections, which are arduous to cure and have high mortality and morbidity. Our study aimed to investigate the efficiency of orthophthalaldehyde, peracetic acid, hydrogen peroxide, and sodium hypochlorite on Pseudomonas aeruginosa and Staphylococcus aureus biofilm layers and live microbial cells. Materials and methods: Biofilm layers were determined by crystal violet assay and live microbial cells were determined using a resazurin assay...
August 23, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29155895/correction-enhancing-antibacterial-effect-of-sodium-hypochlorite-by-low-electric-current-assisted-sonic-agitation
#2
Murat Maden, İhsan Furkan Ertuğrul, Ekim Onur Orhan, Cevat Emre Erik, Ceylan Çağıl Yetiş, Yasin Tuncer, Mesud Kahriman
[This corrects the article DOI: 10.1371/journal.pone.0183895.].
2017: PloS One
https://www.readbyqxmd.com/read/29153984/influence-of-mixed-additives-on-the-physicochemical-properties-of-a-5-25-sodium-hypochlorite-solution-an-unsupervised-multivariate-statistical-approach
#3
Oana Dragan, Ioan Tomuta, Dorina Casoni, Costel Sarbu, Radu Campian, Tiberiu Frentiu
INTRODUCTION: This article reports for the first time the effects of multiple additives (polyethylene glycol 400, Triton X-100, benzalkonium chloride, and ethyl formate) on the surface tension, pH, and viscosity of 5.25% sodium hypochlorite (NaOCl) irrigant solution. Advanced statistical approaches based on unsupervised multivariate analysis (cluster analysis and principal component analysis) were used to quantify the variability of the physicochemical properties of the modified NaOCl solution for the first time in dentistry...
November 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29153731/bioactivity-of-photoactivated-functionalized-nanoparticles-assessed-in-lipopolysaccharide-contaminated-root-canals-in%C3%A2-vivo
#4
Annie Shrestha, Shimon Friedman, Calvin D Torneck, Anil Kishen
INTRODUCTION: The persistence of dentin-bound lipopolysaccharides (LPS) in disinfected root canals impedes treatment outcomes of endodontic procedures. This study assessed the effects of photoactivated rose bengal-functionalized chitosan nanoparticles (CSRBnps) on LPS-contaminated root dentin in vivo using an intraosseous implantation model and neotissue formation as a marker. METHODS: Fifty human, 3-mm-long root segments with a 1.2-mm canal lumen were divided into 5 groups (n = 10): group 1, canals not contaminated; group 2, canals contaminated with Pseudomonas aeruginosa LPS; group 3, canals contaminated and disinfected with sodium hypochlorite (NaOCl); group 4, canals contaminated and disinfected with NaOCl and calcium hydroxide; and group 5, canals contaminated and disinfected with NaOCl and CSRBnps (300 μg/mL) with photoactivation (λ = 540 nm, 40 J/cm(2))...
November 15, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29148020/effect-of-different-types-of-disinfection-solution-and-aging-on-the-hardness-and-colour-stability-of-maxillofacial-silicone-elastomers
#5
Pinar Cevik, Arzu Z Yildirim-Bicer
INTRODUCTION: Understanding the effect of aging and different disinfecting agents on the physical properties of pigmented maxillofacial silicones may help eliminate the current uncertainty as to the best follow-up suggestions for the patients treated with silicone prostheses. METHODS: One hundred fifty specimens (14 × 2 mm) were evaluated for colour and 75 specimens (30 × 10 mm) for hardness (total, 225 specimens). Five specimens were used for hardness testing in each disinfecting solution while 10 silicone specimens were used for colour evaluation...
November 9, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/29142881/smear-layer-removal-by-different-chemical-solutions-used-with-or-without-ultrasonic-activation-after-post-preparation
#6
Daniel Poletto, Ana Claudia Poletto, Andressa Cavalaro, Ricardo Machado, Leopoldo Cosme-Silva, Cássia Cilene Dezan Garbelini, Márcio Grama Hoeppner
Objectives: This study evaluated smear layer removal by different chemical solutions used with or without ultrasonic activation after post preparation. Materials and Methods: Forty-five extracted uniradicular human mandibular premolars with single canals were treated endodontically. The cervical and middle thirds of the fillings were then removed, and the specimens were divided into 9 groups: G1, saline solution (NaCl); G2, 2.5% sodium hypochlorite (NaOCl); G3, 2% chlorhexidine (CHX); G4, 11...
November 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29142874/evaluation-of-antimicrobial-activity-and-efficacy-of-herbal-oils-and-extracts-in-disinfection-of-gutta-percha-cones-before-obturation
#7
Chetana S Makade, Pratima R Shenoi, Elakshi Morey, Ameya V Paralikar
Objectives: Literature has shown that micro-organisms contaminate gutta percha (GP) during storage and manipulation. Till date herbal extracts are not explored as an alternative medicament for pre-operative chairside disinfection of GP cones. The purpose of our study was to evaluate the antimicrobial activity and efficacy of lemon grass oil (LG), basil oil (BO), and obicure tea extract (OT) in disinfecting GP cones before obturation. Materials and Methods: Agar diffusion method was used to evaluate the antimicrobial efficacy of LG, BO, OT, and sodium hypochlorite (control) against common contaminants, namely, Enterococcus faecalis, Staphylococcus aureus, and Candida albicans...
November 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29139579/topical-adjuvants-incompletely-remove-adherent-staphylococcus-aureus-from-implant-materials
#8
Emily P Ernest, Anthony S Machi, Brock A Karolcik, P Rocco LaSala, Matthew J Dietz
Adjuvant treatments including Betadine, Dakin's solution (sodium hypochlorite), or hydrogen peroxide (H2O2) have been attempted to eradicate prosthetic joint infection caused by biofilm or intracellular bacteria. The purpose of this study was to evaluate the in vitro abilities of chemical adjuvants to decrease Staphylococcus aureus (S. aureus) biofilm presence on orthopaedic implant grade materials, including titanium, stainless steel, and cobalt chrome. S. aureus biofilms were grown for 48 hours and evaluated for baseline colony forming units/centimeter squared (CFU/cm(2) ) and compared to treatments with Betadine, Dakin's solution, H2 O2 , or 1% chlorine dioxide (ClO2 )...
November 15, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29137898/antiseptics-commonly-used-in-total-joint-arthroplasty-interact-and-may-form-toxic-products
#9
Sean T Campbell, Lawrence H Goodnough, Chase G Bennett, Nicholas J Giori
BACKGROUND: Multiple antiseptics have been described for use in total joint arthroplasty infection, and the use of multiple antiseptic solutions during a single operation has been described. Our clinical experience is that chlorhexidine (CHX) and Dakin's solution (NaOCl) interact and form a precipitate. The purpose of this study is to determine whether this reaction could be replicated in a laboratory setting, and to determine if other commonly used antiseptics also visibly react when mixed...
November 11, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29109319/histological-evaluation-of-the-effect-of-platelet-rich-plasma-on-pulp-regeneration-in-nonvital-open-apex-teeth-an-animal-study
#10
Jamileh Ghoddusi, Amir Maghsudlu, Hamid Jafarzadeh, Amirhossein Jafarian, Maryam Forghani
AIM: Platelet-rich plasma (PRP), which is a concentration of growth factors found in platelets, may be a suitable material for pulp regeneration. The aim of this animal study was a histological evaluation of PRP on pulp regeneration in nonvital teeth with immature apices. MATERIALS AND METHODS: A total of 40 premolar dogs' teeth were chosen for this study. After general anesthesia, the teeth were exposed, and subsequently, pulps were removed and the cavities were opened to the oral cavity...
November 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29109316/evaluation-and-comparison-between-formocresol-and-sodium-hypochlorite-as-pulpotomy-medicament-a-randomized-study
#11
Shikhar P Chauhan, Mukesh Gupta, Hina Ahmed, Ravish Tongya, Dheeraj Sharma, Bhanu Chugh
INTRODUCTION: Pulpotomy is the most common treatment to preserve vitality of cariously exposed molars. Various pulpotomy medicaments used should be antimicrobial, should help in healing without damaging surrounding tissue, and should not affect eruption of permanent teeth. Thus, this study was conducted to evaluate and compare the clinical and radiographic outcomes of formocresol (FC) and sodium hypochlorite (NaOCl) in primary molars. The aim of this randomized study was to compare the clinical and radiographic success rate of FC and 5% NaOCl as a pulpotomy medicament in primary molars...
November 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29103649/the-decay-of-silver-nanoparticles-in-preoxidation-process
#12
Jie Qin, Minghao Sui, Bojie Yuan, Jingyu Wang, Zhen Yuan, Guangyi Xu
To investigate the fate of metal-based nanoparticles in water oxidation treatment processes, the decay of Ag-NPs in the presence of three kinds of water treatment preoxidants, sodium hypochlorite (NaClO), hydrogen peroxide (H2O2) and potassium permanganate (KMnO4), was investigated in this work. Dissolution of Ag-NPs into silver ions (Ag(+)) was found to occur under exposure to NaClO, H2O2 and KMnO4. The morphology of Ag-NPs changed after reacting with NaClO, H2O2 and KMnO4. Factors affecting the decay of Ag-NPs, i...
November 2, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29100930/biofilm-formation-by-staphylococcus-aureus-and-salmonella-spp-under-mono-and-dual-species-conditions-and-their-sensitivity-to-cetrimonium-bromide-peracetic-acid-and-sodium-hypochlorite
#13
Maricarmen Iñiguez-Moreno, Melesio Gutiérrez-Lomelí, Pedro Javier Guerrero-Medina, María Guadalupe Avila-Novoa
The aim of this study was evaluated the biofilm formation by Staphylococcus aureus 4E and Salmonella spp. under mono and dual-species biofilms, onto stainless steel 316 (SS) and polypropylene B (PP), and their sensitivity to cetrimonium bromide, peracetic acid and sodium hypochlorite. The biofilms were developed by immersion of the surfaces in TSB by 10 d at 37°C. The results showed that in monospecies biofilms the type of surface not affected the cellular density (p>0.05). However, in dual-species biofilms on PP the adhesion of Salmonella spp...
October 13, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29099365/removal-of-calcium-hydroxide-intracanal-medicament-by-different-irrigants-and-irrigating-techniques-a-cone-beam-computed-tomography-analysis
#14
Prasanna Neelakantan, Priyanka Sriraman, James L Gutmann
The aim of this study was to use cone beam computed tomography (CBCT) to evaluate the removal of calcium hydroxide (Ca[OH]2) from root canals after using different irrigation and activation protocols. Root canals (n = 128) were filled with Ca(OH)2 and scanned using CBCT. The Ca(OH)2 was removed after 1 week using 1 of 12 groups (G1-G12) according to the final irrigating solution: G1, 6% sodium hypochlorite (NaOCl) + 18% etidronic acid (EA) with no activation; G2, NaOCL + EA + passive ultrasonic irrigation (PUI); G3, NaOCl + EA + Finishing File (FF); G4, NaOCl + EA + NaviTip FX irrigation needle (NTFX); G5, 3% NaOCl + 17% ethylenediaminetetraacetic acid (EDTA) with no activation; G6, NaOCl + EDTA + PUI; G7, NaOCl + EDTA + FF; G8, NaOCl + EDTA + NTFX; G9, 3% NaOCl with no activation; G10, NaOCl + PUI; G11, NaOCl + FF; G12, NaOCL + NTFX...
November 2017: General Dentistry
https://www.readbyqxmd.com/read/29097290/in-vitro-evaluation-of-methylene-blue-removal-from-root-canal-after-photodynamic-therapy
#15
Karen Müller Ramalho, Sandra Ribeiro Cunha, Eric Mayer-Santos, Carlos de Paula Eduardo, Patricia Moreira de Freitas, Ana Cecilia Correa Aranha, Cacio Moura-Netto
In Endodontics, photosensitizers' such as methylene blue and toluidine blue have been used in photodynamic therapy due to their positive results. However, they can stain the dentin from the root canal after Photodynamic Therapy (PDT). The present in vitro study aimed to evaluate different stain removal protocols from root canal after PDT using methylene blue (MB) dye. After mechanical preparation of the root canal of 40 uni-radicular human teeth, PDT was performed using 0,01% MB with parameters of 3minutes of pre-irradiation and a diode laser irradiation emitting at 660nm, 40mW, 4minutes, 9...
October 30, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29084111/effect-of-irrigation-time-of-antiseptic-solutions-on-bone-cell-viability-and-growth-factor-release
#16
Kosaku Sawada, Ken Nakahara, Maiko Haga-Tsujimura, Masako Fujioka-Kobayashi, Tateyuki Iizuka, Richard J Miron
Antiseptic solutions are commonly utilized to treat local infection in the oral and maxillofacial region. However, surrounding vital bone is also exposed to antiseptic agents during irrigation and may have a potential negative impact on bone survival. The aim of the present study was therefore to investigate the effect of rinsing time with various antiseptic solutions on bone cell viability, as well as their subsequent release of growth factors important for bone regeneration. The bone samples collected from porcine mandible were rinsed in the following commonly utilized antiseptic solutions; povidone-iodine (0...
October 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29081450/effectiveness-of-sodium-hypochlorite-and-sulfinic-acid-sodium-salt-treatment-on-dentin-resin-bonding-long-term-durability-of-one-step-self-etching-adhesive
#17
Hayaki Nakatani, Atsushi Mine, Mariko Matsumoto, Tomoshige Kabetani, Asuka Kawaguchi-Uemura, Mami Higashi, Yuko Tajiri, Dai Imai, Ryosuke Hagino, Takuya Minamino, Jiro Miura, Hirofumi Yatani
This study aimed to evaluate the effect of sulfinic acid sodium salt interposition after acid and sodium hypochlorite treatment (NC treatment) on dentin bonding durability using a mild type one-step self-etching adhesive. Fifteen human third molars were randomly assigned into three experimental groups according to dentin pretreatment before applying the one-step self-etching adhesive: Cont group, without pretreatment; NC group, pretreatment with phosphoric acid and sodium hypochlorite gel; and NC+AC group, additional treatment with sulfinic acid sodium salt followed by the same pretreatment of the NC group...
October 27, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/29080537/antibiotic-resistant-bacteria-in-urban-sewage-role-of-full-scale-wastewater-treatment-plants-on-environmental-spreading
#18
A Turolla, M Cattaneo, F Marazzi, V Mezzanotte, M Antonelli
The presence of antibiotic resistant bacteria (ARB) in wastewater was investigated and the role of wastewater treatment plants (WWTPs) in promoting or limiting antibiotic resistance was assessed. Escherichia coli (E. coli) and total heterotrophic bacteria (THB) resistance to ampicillin, chloramphenicol and tetracycline was monitored in three WWTPs located in Milan urban area (Italy), differing among them for the operating parameters of biological process, for the disinfection processes (based on sodium hypochlorite, UV radiation, peracetic acid) and for the discharge limits to be met...
October 25, 2017: Chemosphere
https://www.readbyqxmd.com/read/29075407/evaluation-of-antibacterial-efficacy-of-chitosan-chlorhexidine-propolis-and-sodium-hypochlorite-on-enterococcus-faecalis-biofilm-an-in-vitro-study
#19
Natasha Jaiswal, Dakshita-Joy Sinha, Udai-Pratap Singh, Kanwardeep Singh, Urja-Ahuja Jandial, Shivika Goel
BACKGROUND: Long term successful root canal treatment requires effective debridement and disinfection of root canal system. Persistent periradicular lesions are usually associated with Enterococccus faecalis. Prompt research for natural alternatives for irrigation is mainly due to the constant increase in antibiotic resistant strains and side effects caused by synthetic drugs. Sodium hypochlorite; the gold standard for irrigation has many disadvantages. Therefore, the present study was aimed to explore newer irrigants probably be as more effective and at the same time would be less irritating to the tissues than NaOCl...
September 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29070158/partial-pulpotomy-in-immature-permanent-molars-after-carious-exposures-using-different-hemorrhage-control-and-capping-materials
#20
Beste Özgür, Serdar Uysal, H Cem Güngör
PURPOSE: This study compared the outcome of partial pulpotomies with mineral trioxide aggregate (MTA) or calcium hydroxide (CH) following hemorrhage control with 2.5 percent sodium hypochlorite (SH) or 0.9 percent sterile saline (SS) solutions in cariously exposed immature permanent molars. METHODS: Following removal of two to three mm of the pulp at the exposure site, 80 Class I cavities were randomly allocated to four groups according to the hemorrhage control agent and pulp-capping material used: (1) group one-SH plus MTA; (2) group two-SS plus MTA; (3) group three-SH plus CH; (4) group four-SS plus CH...
September 15, 2017: Pediatric Dentistry
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