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https://www.readbyqxmd.com/read/28178188/effect-of-silver-diamine-fluoride-and-potassium-iodide-treatment-on-secondary-caries-prevention-and-tooth-discolouration-in-cervical-glass-ionomer-cement-restoration
#1
Irene Shuping Zhao, May Lei Mei, Michael F Burrow, Edward Chin-Man Lo, Chun-Hung Chu
This study investigated the effect of silver diamine fluoride (SDF) and potassium iodide (KI) treatment on secondary caries prevention and tooth discolouration in glass ionomer cement (GIC) restoration. Cervical GIC restorations were done on 30 premolars with: Group 1, SDF + KI; Group 2, SDF (positive control); Group 3, no treatment (negative control). After cariogenic biofilm challenge, the demineralisation of dentine adjacent to the restoration was evaluated using micro-computed tomography (micro-CT) and Fourier transform infrared (FTIR) spectroscopy...
February 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28129798/limited-evidence-suggesting-silver-diamine-fluoride-may-arrest-dental-caries-in-children
#2
Linda L Cheng
No abstract text is available yet for this article.
February 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28066987/photothermal-membrane-distillation-for-seawater-desalination
#3
Antonio Politano, Pietro Argurio, Gianluca Di Profio, Vanna Sanna, Anna Cupolillo, Sudip Chakraborty, Hassan A Arafat, Efrem Curcio
Thermoplasmonic effects notably improve the efficiency of vacuum membrane distillation, an economically sustainable tool for high-quality seawater desalination. Poly(vinylidene fluoride) (PVDF) membranes filled with spherical silver nanoparticles are used, whose size is tuned for the aim. With the addition of plasmonic nanoparticles in the membrane, the transmembrane flux increases by 11 times, and, moreover, the temperature at the membrane interface is higher than bulk temperature.
January 2017: Advanced Materials
https://www.readbyqxmd.com/read/28009504/multifunctionalization-of-poly-vinylidene-fluoride-reactive-copolymer-blend-membranes-for-broad-spectrum-applications
#4
Dixit V Bhalani, Anupam Bera, Arvind K Singh Chandel, Sweta B Kumar, Suresh K Jewrajka
Simultaneous immobilization and cross-linking of antifouling/low toxic polymers, e.g., poly(ethylenimine) (PEI), dextran (Dex), agarose (Agr), poly(ethylene glycol) (PEG), PEI-Dex, and PEI-PEG conjugates, and stimuli-responsive copolymers on a porous membrane surface in mild reaction conditions is desirable for the enhancement of hydrophilicity, antifouling character, cytocompatibility, and inducing stimuli-responsive behavior. Grafting to technique is required since the precursors of most of these macromolecules are not amenable to surface-initiated polymerization...
January 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27984089/cost-effectiveness-of-root-caries-preventive-treatments
#5
Falk Schwendicke, Gerd Göstemeyer
INTRODUCTION: With a growing number of individuals retaining their teeth lifelong, often with periodontitis-induced root surface exposure, there is the need for cost-effective management strategies for root caries lesions. The present study aimed to assess the cost-effectiveness of root caries preventive treatments. METHODS: Patients were simulated over 10 years using a Markov model. Four treatments were compared: No treatment, daily 225-800ppm fluoride rinses, chlorhexidine (CHX) varnish (2×/year), silver diamine fluoride (SDF) varnish (2×/year)...
January 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/27941220/facet-mediated-growth-of-silver-nanoparticles-on-biaxial-calcium-fluoride-nanorod-arrays
#6
Mathias Auer, Dexian Ye
The surface orientation of metal nanoparticles is critical to their physical and chemical properties. This study aims on the understanding of the effect of surface orientation as well as heterogeneous epitaxy of metal nanoparticles at an interface between two materials with a large lattice mismatch. Silver nanoparticles of different diameters were grown on arrays of calcium fluoride (CaF2) nanorods using oblique angle deposition as a model system for this study. Scanning electron microscopy and transmission electron microscopy (TEM) imaging were used to verify that the nanoparticles were selectively grown on the desired {111} facets of the nanorod tips...
January 20, 2017: Nanotechnology
https://www.readbyqxmd.com/read/27939657/prevention-of-secondary-caries-using-silver-diamine-fluoride-treatment-and-casein-phosphopeptide-amorphous-calcium-phosphate-modified-glass-ionomer-cement
#7
Irene Shuping Zhao, May Lei Mei, Michael F Burrow, Edward Chin-Man Lo, Chun-Hung Chu
OBJECTIVE: To study the effect of silver diamine fluoride (SDF) treatment and incorporating casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) into a glass-ionomer cement (GIC) to prevent secondary caries. METHOD: A cervical cavity was prepared on 32 premolars for the following restoration groups: group 1, conventional GIC restoration; group 2, SDF (38%) treatment and conventional GIC restoration; group 3, CPP-ACP (3%) modified GIC; and group 4, SDF treatment and CPP-ACP modified GIC...
December 6, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27786483/silver-catalyzed-cyclization-of-sulfonyl-allenes-to-dihydrofurans
#8
Rama Rao Tata, Michael Harmata
Treatment of α-hydroxy allenic sulfones with 10 mol % of silver fluoride in acetonitrile at ambient temperature furnished the corresponding 3-tosyl 2,5-dihydrofurans in excellent yields via a 5-endo-trig cyclization. The starting α-hydroxy allenic sulfones were prepared by lithiation of allenic sulfones and trapping with carbonyl compounds.
October 27, 2016: Organic Letters
https://www.readbyqxmd.com/read/27759403/pit-and-fissure-sealants-or-fluoride-varnishes
#9
L Paglia
Despite the general advances in dental care, dental caries is still a global health problem affecting many children. Occlusal surfaces of first permanent molars are the most susceptible sites in the developing permanent dentition. Dentists should use sealants or fluoride varnish - as well as other means - to limit the onset of tooth decay. Application of sealants is a recommended procedure to prevent or control caries. Sealing occlusal surfaces of newly erupted permanent molars in children and teenagers delays caries onset up to 48 months compared with unsealed teeth...
September 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/27725779/stretchable-triboelectric-fiber-for-self-powered-kinematic-sensing-textile
#10
Hyeon Jun Sim, Changsoon Choi, Shi Hyeong Kim, Kang Min Kim, Chang Jun Lee, Youn Tae Kim, Xavier Lepró, Ray H Baughman, Seon Jeong Kim
Stretchable fiber and yarn triboelectric nanogenerator are sought for such applications as wearable sensing system such as cloth communication devices, electronic textiles, and robotic sensory skin. Unfortunately, previously reported triboelectric fiber and yarn are difficult to have stretchable property. We introduce here a new type of stretchable and weavable triboelectric fibers with microdiameter dimensions. The stretchable triboelectric fibers can be reversibly stretched up to 50% in tensile direction while generating voltage output proportional to the applied tensile strain...
October 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27723641/evaluation-of-microshear-bond-strength-and-nanoleakage-of-etch-and-rinse-and-self-etch-adhesives-to-dentin-pretreated-with-silver-diamine-fluoride-potassium-iodide-an-in-vitro-study
#11
Karthik Selvaraj, Vidhya Sampath, V Sujatha, S Mahalaxmi
AIMS: The aim of this in vitro study was to comparatively evaluate the microshear bond strength (MSBS) of etch-and-rinse and self-etch (ER and SE) bonding systems to dentin pretreated with silver diamine fluoride/potassium iodide (SDF/KI) and nanoleakage at the resin-dentin interface using transmission electron microscope (TEM). SUBJECTS AND METHODS: Seventy-two dentin slabs of 3 mm thickness were prepared from extracted human permanent third molars and divided into four groups (n = 18) based on the dentin surface treatment as follows: (1) ER adhesive bonding without dentin pretreatment; (2) SDF/KI pretreatment of dentin followed by ER adhesive bonding; (3) SE adhesive bonding without dentin pretreatment; and (4) SDF/KI pretreatment of dentin followed by SE adhesive bonding...
July 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/27713457/randomized-clinical-trial-on-arresting-dental-root-caries-through-silver-diamine-fluoride-applications-in-community-dwelling-elders
#12
(no author information available yet)
The immediate application of potassium iodide to dental root caries treated with silver diamine fluoride improved the colour of the lesion from black to bright yellow, but this colour change was only short lived.
October 7, 2016: British Dental Journal
https://www.readbyqxmd.com/read/27642129/antimicrobial-and-cytotoxicity-evaluation-of-colloidal-chitosan-silver-nanoparticles-fluoride-nanocomposites
#13
Priscila L L Freire, Allan J R Albuquerque, Isabela A P Farias, Teresinha Gonçalves da Silva, Jaciana Santos Aguiar, André Galembeck, Miguel A P Flores, Fabio C Sampaio, Thayza Christina Montenegro Stamford, Aronita Rosenblatt
The present study aimed to evaluate the antimicrobial activity and cytotoxicity of colloidal chitosan - silver nanoparticle - fluoride nanocomposites (CChAgNpFNc), with different silver nanoparticle shapes and sizes. The syntheses of CChAgNpFNc were performed with silver nitrate added to a chitosan solution, addition of a sodium borohydride solution and solid sodium fluoride. Solution of ascorbic acid was added to synthesize larger silver nanoparticles. CChAgNpFNc obtained: S1- 100% spherical, 8.7±3.1nm; S2- 97% spherical, 15...
December 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27546855/effects-of-zinc-fluoride-on-inhibiting-dentin-demineralization-and-collagen-degradation-in-vitro-a-comparison-of-various-topical-fluoride-agents
#14
Ornnicha Thanatvarakorn, Md Sofiqul Islam, Syozi Nakashima, Alireza Sadr, Toru Nikaido, Junji Tagami
Root caries is developed because of demineralization followed by enzymatic collagen degradation. This in vitro study aimed to examine the inhibitory efficacy of ZnF2 on dentin demineralization and collagen degradation. Bovine dentin specimens were treated either with ZnF2 or HCl-acidified ZnF2 (ZnF2/HCl) and then demineralized. Anti-demineralization efficacy was assessed by TMR as mineral loss (ΔZ). The efficacy was compared with silver diammine fluoride (SDF), KF, and acidulated phosphate fluoride (APF). For evaluating anti-collagen degradation, EDTA-demineralized dentin specimens were treated by one of four fluoride agents [SDF, APF, ZnF2/HCl, NaF] followed by collagenase challenge...
October 1, 2016: Dental Materials Journal
https://www.readbyqxmd.com/read/27476555/facile-synthesis-of-enhanced-fluorescent-gold-silver-bimetallic-nanocluster-and-its-application-for-highly-sensitive-detection-of-inorganic-pyrophosphatase-activity
#15
Qian Zhou, Youxiu Lin, Mingdi Xu, Zhuangqiang Gao, Huanghao Yang, Dianping Tang
Herein, gold-silver bimetallic nanoclusters (Au-Ag NCs) with the high fluorescent intensity were first synthesized successfully and utilized for the fabrication of sensitive and specific sensing probes toward inorganic pyrophosphatase (PPase) activity with the help of copper ion (Cu(2+)) and inorganic pyrophosphate ion (PPi). Cu(2+) was used as the quencher of fluorescent Au-Ag NC, while PPi was employed as the hydrolytic substrate of PPase. The system consisted of PPi, Cu(2+) ion, and bovine serum albumin (BSA)-stabilized Au-Ag NC...
September 6, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/27456036/anodic-ag-tio2-nanotube-array-formation-in-naoh-fluoride-ethylene-glycol-electrolyte-as-a-photoanode-for-dye-sensitized-solar-cells
#16
Nyein Nyein, Wai Kian Tan, Go Kawamura, Astunori Matsuda, Zainovia Lockman
Self-organized, 23 μm-thick anodic TiO2 nanotube (TNT) arrays were formed in sodium hydroxide/fluoride/ethylene glycol (EG) electrolyte at 60 V for 60 min. The presence of sodium hydroxide (NaOH) in the fluoride/EG electrolyte accelerates the formation of the TiO2 nanotube arrays. The anodic film was then decorated with silver nanoparticles (Ag NPs) by the photodeposition process and used as a photoanode in a rear-side-illuminated dye-sensitized solar cell. The Ag NPs decorated TNT arrays, with the former having diameters of 10-30 nm formed from 0...
September 2, 2016: Nanotechnology
https://www.readbyqxmd.com/read/27443857/electrospun-and-functionalized-pvdf-pan-nanocatalyst-loaded-composite-for-dechlorination-and-photodegradation-of-pesticides-in-contaminated-water
#17
Richard M Nthumbi, Jane C Ngila
A novel approach for the electrospinning and functionalization of nanocatalyst-loaded polyvinylidene fluoride/polyacrylonitrile (PVDF/PAN) composite grafted with acrylic acid (AA; which form polyacrylic acid (PAA) brush) and decorated with silver (Ag/PAN/PVDF-g-PAA-TiO2/Fe-Pd) designed for the dechlorination and photodegradation of pesticides was carried out. PAN was used both as a nitrogen dopant as well as a co-polymer. Smooth nanofibers were obtained by electrospinning a solution of 12:2 wt.% PVDF/PAN blend using dimethylformamide (DMF) as solvent...
October 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27443366/study-of-the-mechanical-properties-of-the-novel-zirconia-reinforced-glass-lonomer-cement
#18
Vemina P Chalissery, Nikhil Marwah, Mohammed Almuhaiza, Abdulaziz M AlZailai, Elna P Chalisserry, Shilpa H Bhandi, Sukumaran Anil
OBJECTIVES: The purpose of this in vitro study is to compare the compressive strength (CS) and diametral tensile strength (DTS) of the zirconia-reinforced restorative material (Zirconomer®) with conventional glass ionomers (Fuji 1X) and amalgam. MATERIALS AND METHODS: Specimens (n = 120) were fabricated from silver amalgam, reinforced glass ionomer cement (GIC) (glass ionomer, Fuji 1X GC Corp.), and zirconia-reinforced glass ionomer (Zirconomer, Shofu Inc.) for testing the CS and DTS...
May 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27378532/purification-and-characterization-of-a-salt-stable-protease-from-halophilic-archaeon-halogranum-rubrum
#19
Ruichang Gao, Tong Shi, Xiangdong Liu, Mengqin Zhao, Henglin Cui, Li Yuan
BACKGROUND: Because proteases play an important role in the fermentation of fish sauce, the purification and characterization of an extracellular protease from the halophilic archaeon Halogranum rubrum was investigated. RESULTS: The molecular mass of the protease was estimated to be approximately 47 kDa based on sodium dodecyl sulfate polyacrylamide gel electropheresis (SDS-PAGE) and native-PAGE analysis. The optimum conditions for catalytic activity were pH 8.0 and 50 °C...
July 5, 2016: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/27377109/restorative-approaches-to-treat-dentin-caries-in-preschool-children-systematic-review
#20
REVIEW
D Duangthip, M Jiang, C H Chu, E C M Lo
AIM: Dental restorations have long been used for the management of early childhood caries, but there is a need to have an evidence based approach when selecting the most appropriate restorative intervention to treat dentin caries in preschool children. This systematic review aimed to assess the effectiveness of restorative treatments of dentin caries in primary teeth in preschool children. MATERIALS AND METHODS: HASH(0x4093508) DESIGN: A systematic search of the main electronic databases (Pubmed, Cochrane Collaboration, EMBASE) was conducted to identify peer reviewed papers published in English in the years 1947-2014...
June 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
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