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2009-1-1 · Methods. A randomized, double-blind, split-mouth in situ design was conducted in one phase of 14 days, during which, 20 volunteers wore palatal devices containing five human dental enamel slabs. Each slab was randomly restored with one of the following materials: Filtek-Z-250/Single Bond, control group (composite resin), Permite (amalgam), Fuji II (encapsulated resin-modified glass ionomer ...
Get PriceIn the orthodontic field, studies have incorporated AgNPs (17 nm) into orthodontic elastomeric modules, orthodontic brackets, and wires, and others, against a wide variety of bacterial species concluding that these orthodontic appliances with AgNPs could potentially combat the dental biofilm decreasing the incidence of dental enamel demineralization during and after the orthodontic treatments [57,58].
Get Price2008-1-1 · The first air-powered dental engine design was patented in 1868 1 although in fact this was not a turbine but effectively a lobe pump operated in reverse. It was intended to be operated by mouth, foot bellows, or a compressed air vessel. The first true turbine dental handpiece, with a 13-bladed rotor, was patented in 1874, 2 with similar ...
Get Price2014-5-1 · In numerous high-speed condensation turbine compressor drains, the fluid-film bearings activate in the regime wherever thermal and turbulence belongings are both important. To guarantee that process lies in the regime of full-film hydrodynamic lubrication, thermal hydrodynamic analysis by means of an effectual turbulent viscosity, is frequently required to decide a precise layer thickness [2] .
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Get Price2021-2-1 · IEC 60335-2-34 REDLINE Household and similar electrical appliances – Safety – Part 2-34: Particular requirements for motor-compressors Revision: 2021 edition • Published 03/01/2021. This part of IEC 60335 deals with the safety of sealed (hermetic and semi-hermetic type) motor-compressors, their protection and control systems, if any, which are intended for use in equipment for household ...
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Get PriceAdvances in Dentistry & Oral Health is an Open Access, International peer reviewed Journal published on behalf of the Juniper Publishers. Dentistry is the branch of medicine that is involved in the research, diagnosis, prevention and treatment of disorders, diseases and conditions related to dental …
Get Pricethe controlled movement of teeth. In addition to applications calling for cast or wrought alloys, other uses of alloys include soldered assemblies, porcelain fused to metal, and resin bonded to metal restorations. Dental Alloy Compositions and Properties Dental Alloy Compositions. The com-positions of alloys used to fulfill the diverse
Get Price2003-9-1 · After using cast titanium prostheses in clinical dental practice, severe wear of titanium teeth has been observed. This in vitro study evaluated the wear behavior of teeth made with several cast titanium alloys containing copper (CP Ti+3.0 wt% Cu; CP Ti+5.0 wt% Cu; Ti–6Al–4 V +1.0 wt% Cu; Ti–6Al–4 V+4.0 wt% Cu) and compared the results with those for commercially pure (CP) titanium, Ti ...
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Get Price2020-1-1 · Their characteristics have attracted them to be used in dermatological and cosmetic products. Nanosponges can be used to load antifungal, local anaesthetics, antibiotics, etc., for topical use. These nanosponges can thereby be added to a base like gel, lotion, cream, powder, and ointment to be used topically [32]. 8.2.7.
Get Price2018-9-27 · Previous studies on dental enamel reported the presence of two orientation populations using synchrotron X-ray diffraction 19,20 and lab source …
Get PriceThis study evaluated the shear bond strength of a dental hard resin to bovine enamel and dentin with four dual-curing adhesive resin cements and the effect of thermal cycling (5,000 times) on the ...
Get PriceThe general process required to produce BC from cultivating the organism to the final application product is schematically described in Fig. 1 A. BC can be produced under static, agitated or stirred fermentation conditions, resulting in different forms of cellulose. Under static conditions, cellulose microfibrils extruded from the bacteria surface, bundle up to form a pellicle on the air ...
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Get Price2018-10-1 · Many different polymers and polymer composites are used for engineering applications in which friction and wear are critical issues. This article briefs (a) the importance of polymer tribology in general, (b) the special design principles of polymer composites for low friction and wear under sliding against smooth metallic counterparts, and (c) synergistic effects of nano-particles and ...
Get Price2020-6-1 · 1. Introduction. The wettability condition of a solid surface determines the behavior of liquids when they encounter each other. It plays a critical role in a wide range of applications such as biomedicine and dental treatment [, , ], fuel cells [], microfluidics [], and catalysts [].In general, the wetting of a solid surface by a liquid depends on three major factors []: (a) surface tension ...
Get PriceArt Deco Cabinet. Serge Chermayeff, ca 1930. Boasting of functionality and intricate design, this impressive cabinet is crafted of red narra wood and ash, and reinforced with copper and enamel mounts. The unit includes 4 door-cabinets, clear glass fronts, 2 storage drawers with metal pulls, and 3 …
Get Price2018-9-27 · Previous studies on dental enamel reported the presence of two orientation populations using synchrotron X-ray diffraction 19,20 and lab source …
Get PriceThe general process required to produce BC from cultivating the organism to the final application product is schematically described in Fig. 1 A. BC can be produced under static, agitated or stirred fermentation conditions, resulting in different forms of cellulose. Under static conditions, cellulose microfibrils extruded from the bacteria surface, bundle up to form a pellicle on the air ...
Get Price2010-3-23 · The purpose of this research was to investigate the influence of modulated photoactivation on cuspal movement. Eight class II MOD composite restorations were analyzed under various photoactivation protocols in a real-time manner using holographic interferometry. During the first photoactivation protocol, the composite restoration was illuminated for 200 s continuously.
Get Price2020-1-1 · 8.1. Introduction. The concept of nanotechnology was first brought into notice by Richard Fenyman in the year 1959. But in 1974, it was Norio Taniguchi who actually coined the term “nanotechnology” .The word “nanotechnology” can be broken into two individual words, namely, technology and a Greek number “nano” meaning dwarf .It is a science of manipulating the structure of …
Get PriceThe developed antimicrobial systems varied from simple lead and copper sheets on wooden boats, to antimicrobial coatings containing copper, arsenic, and mercury on ship hulls. Copper was an effective and widely used biocide, but only proved to be effective for a period of up to two years.
Get Price2017-2-11 · International Journal of Oral and Dental Health is an open access journal that highlights the advances in oral health in detail. IJODH is an archive for the information on Biomechanics and Clinical Dentistry, Dental Anesthesia, Dental Pulp Stem Cells and Replacement Therapy, Digital Dentistry, Odontology, Forensic Odontology, General Dentistry, Implant Biomechanics, Operative Dentistry, Oral ...
Get Price2007-8-16 · Dental: CST61, high speed air-turbine dental handpiece: Diamond bur: Coarse grit of 106–125 µm, nickel coating, diameter of 1.4 mm Medium grit of 53–63 µm, nickel coating, diameter of 1.3 mm Fine grit of 20–30 µm, chromium plus minor nickel coating, diameter of 1.3 mm: Dental material
Get PriceModelling and Simulation in Materials Science and Engineering. Serving the multidisciplinary materials community, the journal aims to publish new research work that advances the understanding and prediction of material behaviour at scales from atomistic to macroscopic through modelling and simulation. Avik Mahata et al 2018 Modelling Simul.
Get Price2021-1-2 · Metal additive manufacturing (MAM) is an emerging technology to produce complex end-use metallic parts. To adopt MAM for manufacturing numerous engineering parts used in critical applications, a thorough understanding of the relationship between the complex thermal cycles in MAM and the unique heterogeneous microstructures of MAM parts need to be established.
Get PriceAGA REPORT #7, 2006 Edition, February 2006 - Measurement of Natural Gas by Turbine Meters (2006) These specifications apply to axial-flow turbine flow meters for measurement of natural gas, typically 2-inch and larger bore diameter, in which the entire gas stream flows through the meter rotor. Typical applications include measuring single-phase ...
Get PriceThe developed antimicrobial systems varied from simple lead and copper sheets on wooden boats, to antimicrobial coatings containing copper, arsenic, and mercury on ship hulls. Copper was an effective and widely used biocide, but only proved to be effective for a period of up to two years.
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Get Price2021-1-2 · Metal additive manufacturing (MAM) is an emerging technology to produce complex end-use metallic parts. To adopt MAM for manufacturing numerous engineering parts used in critical applications, a thorough understanding of the relationship between the complex thermal cycles in MAM and the unique heterogeneous microstructures of MAM parts need to be established.
Get Price2021-2-8 · A multilayer copper lamination on cellulose paper is used to fabricate the microstrip patch antenna array operating at 24 GHz for green wireless applications.97 In another interesting discovery, epoxy coated on cellulose nano-fibril (CNF) film enhanced the flexibility and mechanical properties of high-speed RF devices.98 A CNF substrate-based ...
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Get PriceDissertations & Theses from 2019. Krishnan, Ankita (2019) Understanding Autism Spectrum Disorder Through a Cultural Lens: Perspectives, Stigma, and Cultural Values among Asians . Suzuki, Takakuni (2019) Quantifying the Relations among Neurophysiological Responses, Dimensional Psychopathology, and Personality Traits . Dissertations & Theses from 2018. Abdel-Salam, Ahmed Nabil (2018) …
Get Price2 天前 · Imaging platforms. The Confocal and Light Microscope Imaging Facility is a core advanced light microscope facility on the Faculty of Health Sciences UCT campus. It offers UCT and other local researchers access to super and near-super resolution, real-time live cell and tissue imaging including a multitude of quantitative imaging and analysis ...
Get Price2021-3-11 · Hydroxyapatite (HAP) participates in vertebral bone and tooth formation by a nonclassical hitherto unknown nucleation mechanism, in which amorphous precursors form and transform during long induction periods. Elucidation of the mechanism by which amorphous precursors assemble and transform is essential to understanding how hard tissues form in vivo and will advance the design and fabrication ...
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Get Price2002-8-10 · Crowns and extra-coronal restorations: Resin-bonded metal restorations is the final part of the series.. The past 25 years have witnessed great strides in the development of adhesive dentistry.
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