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  • Nanotechnology-based materials as emerging trends

    2021-1-1 · Graphene as Nano-filler in dental Nano-composite has shown significant increase in mechanical properties . Several studies have reported anti-bacterial properties of graphene based materials and by incorporating of it in dental materials can serve dual action of a filler and antibacterial agent [ 128 , 129 , 130 ].

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  • Crystallographic texture and mineral concentration ...

    2018-9-27 · Previous studies on dental enamel reported the presence of two orientation populations using synchrotron X-ray diffraction 19,20 and lab source …

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  • The release of silver nanoparticles from commercial ...

    2017-1-15 · The Ag release from the toothbrushes was tested in 20 mL plastic vials which were filled with 15 mL of tap water (water hardness 1.0–1.2 mg/L CaCO 3 (18–21° dH), pH 7–8.5). The volume of water added to the vials was chosen so that it was sufficient to immerse the head of the toothbrush and the toothbrushes were fixed to rotating rods (120 rounds per minute) to simulate brushing movement.

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  • Aunps and Agμps-functionalized zirconia surfaces by

    2020-4-15 · Size distribution and shape were determined by scanning electron microscope with a transmission electron detector (STEM) (Nova 200 Nano SEM) operated at 30 kV. For this characterization, two droplets of the colloidal solution were added on carbon-coated copper grids and dried in air. 2.3. Nano gold (Au nps)-zirconia surface functionalization

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  • Fabricating Copper Components with Electron Beam

    The additive processing of 99.94% pure copper powder via selective electron beam melting (SEBM) is presented. The high thermal and electrical conductivity of pure copper combined with the freedom ...

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  • Zhongrong Zhou's research works | Southwest

    Zhongrong Zhou's 68 research works with 1,139 citations and 7,249 reads, including: Effect of HAP crystallite orientation upon corrosion and tribocorrosion behavior of bovine and human dental enamel

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  • Biofouling: lessons from nature | Philosophical ...

    2004-1-24 · 4. Non vital teeth and root treated teeth have an increased risk of resorption. 5. Heavy forces are associated with resorption, as well as the use of rectangular wires, Class II traction, the ...

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  • This Factory Is 3D Printing Turbine Parts For The

    2018-3-20 · The 3D-printed blades spin inside the engine at 2,500 times per minute and face searing heat and titanic forces. “These are big blades,” says Giorgio Abrate, general manager for engineering at Avio Aero. “We ran a lot of experiments to get the job right.”. The 3D printing factory, which looks like a blue and gray jewel box of steel and ...

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  • Biofouling: lessons from nature | Philosophical ...

    2012-5-28 · Dental plaque biofilm is a diverse collection of micro-organisms in the oral cavity, containing many species of bacteria such as S. mutans. Plaque grows on teeth, gums, the tongue and cheeks, leading to dental decay and periodontal disease. The micro-organisms living in saliva colonize tooth enamel, dental implants and cementum.

    Get Price
  • Zhongrong Zhou's research works | Southwest

    Zhongrong Zhou's 68 research works with 1,139 citations and 7,249 reads, including: Effect of HAP crystallite orientation upon corrosion and tribocorrosion behavior of bovine and human dental enamel

    Get Price
  • Orthodontics. Part 6: Risks in orthodontic treatment ...

    2004-1-24 · Enamel demineralisation/caries. Enamel demineralisation, usually on smooth surfaces, is unfortunately a common complication in orthodontics; figures range from 2–96% of orthodontic patients ...

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  • Aunps and Agμps-functionalized zirconia surfaces by

    2020-4-15 · Size distribution and shape were determined by scanning electron microscope with a transmission electron detector (STEM) (Nova 200 Nano SEM) operated at 30 kV. For this characterization, two droplets of the colloidal solution were added on carbon-coated copper grids and dried in air. 2.3. Nano gold (Au nps)-zirconia surface functionalization

    Get Price
  • Crystallographic texture and mineral concentration ...

    2018-9-27 · Previous studies on dental enamel reported the presence of two orientation populations using synchrotron X-ray diffraction 19,20 and lab source …

    Get Price
  • Engineering360 - Industrial Products & Supplier

    2021-7-27 · Add to cart. CENAVA F151 Ultrabook, 15.6 inch, 8GB+512GB Windows 10 Intel Celeron J4105 Quad Core Up to 2.5GHz, Support TF Card & Bluetooth & Dual WiFi & Mini HDMI. 609.99. Add to cart. LCD Screen and Digitizer Full Assembly for iMac Pro 27 inch A1862 Retina 5K 2017 LM270QQ1 (SD) (D1) MQ2Y2 EMC3144. 681.01.

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  • Alexnld.com | Free Worldwide Shipping

    2021-3-12 · Brushite cements are promising bone regeneration materials with limited biological and mechanical properties. Here, we engineer a mechanically improved brushite–collagen type I cement with enhanced biological properties by use of chiral chemistry; d- and l-tartaric acid were used to limit crystal growth and increase the mechanical properties of brushite–collagen cements. The impact of the ...

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  • Experts in Spray Technology | Spraying Systems Co.

    The world's leader in spray technology, Spraying Systems Co. designs and manufactures spray nozzles, air control nozzles, tank washers, accessories, spray systems and controls, and fabricated products such as spray headers and lances. Spray analysis, performance testing, prototyping and consulting services are also available.

    Get Price
  • Nanohydroxyapatite-, Gelatin-, and Acrylic Acid-Based ...

    2021-3-18 · The aim of this study was to prepare a novel dental restorative material (NDRM) and to understand its cell viability behavior. The hydroxyapatite (HA) nanopowder was synthesized using a wet chemical precipitation method using calcium hydroxide and orthophosphoric acid as precursors. The as-prepared HA nanopowder was annealed at different temperatures to get a pure compound with a …

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  • Theses and Dissertations Available from ProQuest |

    Dissertations & 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) …

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  • SCIRP Open Access

    2021-7-21 · Scientific Research Publishing is an academic publisher with more than 200 open access journal in the areas of science, technology and medicine. It also publishes academic books and conference proceedings.

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  • Chiral Tartaric Acid Improves Fracture Toughness of ...

    2021-3-12 · Brushite cements are promising bone regeneration materials with limited biological and mechanical properties. Here, we engineer a mechanically improved brushite–collagen type I cement with enhanced biological properties by use of chiral chemistry; d- and l-tartaric acid were used to limit crystal growth and increase the mechanical properties of brushite–collagen cements. The impact of the ...

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  • Publications | Institute Of Infectious Disease and ...

    2021-7-25 · For information on South Africa's response to COVID-19 please visit the COVID-19 Corona Virus South African Resource Portal.

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  • Characterizing the performance of dental air-turbine ...

    2008-1-1 · 2008-1-1 · 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 ...

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  • Dental Burr - an overview | ScienceDirect Topics

    Dental burs have revolutionized the dentistry field and are used for cutting hard tissues such as bone or tooth [1,4,6–9]. They are normally made of stainless steel, diamond grit or particles, and tungsten carbide and fitted to a dental drill incorporating an air turbine. The dental bur was developed <300 years ago [8] and still widely used.

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  • Factors Affecting Dental Air-Turbine Handpiece

    2012-7-1 · 2012-7-1 · Air-turbine handpieces have been used for most dental cutting procedures for more than 50 years since the invention of the Borden Air rotor in 1957. 1 Although some improvements such as push-button bur release, swivel coupling, and fiber-optic illumination have made it more convenient for use, the main component, a turbine rotor supported by two miniature ball bearings, …

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  • This Factory Is 3D Printing Turbine Parts For The

    2018-3-20 · 2018-3-20 · The 3D-printed blades spin inside the engine at 2,500 times per minute and face searing heat and titanic forces. “These are big blades,” says Giorgio Abrate, general manager for engineering at Avio Aero. “We ran a lot of experiments to get the job right.”. The 3D printing factory, which looks like a blue and gray jewel box of steel and ...

    Get Price
  • In situ effects of restorative materials on dental

    2009-1-1 · 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 …

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  • The release of silver nanoparticles from commercial ...

    2017-1-15 · The Ag release from the toothbrushes was tested in 20 mL plastic vials which were filled with 15 mL of tap water (water hardness 1.0–1.2 mg/L CaCO 3 (18–21° dH), pH 7–8.5). The volume of water added to the vials was chosen so that it was sufficient to immerse the head of the toothbrush and the toothbrushes were fixed to rotating rods (120 rounds per minute) to simulate brushing movement.

    Get Price
  • Zhongrong Zhou's research works | Southwest

    Zhongrong Zhou's 68 research works with 1,139 citations and 7,249 reads, including: Effect of HAP crystallite orientation upon corrosion and tribocorrosion behavior of bovine and human dental enamel

    Get Price
  • Biofouling: lessons from nature | Philosophical ...

    2012-5-28 · Dental plaque biofilm is a diverse collection of micro-organisms in the oral cavity, containing many species of bacteria such as S. mutans. Plaque grows on teeth, gums, the tongue and cheeks, leading to dental decay and periodontal disease. The micro-organisms living in saliva colonize tooth enamel, dental implants and cementum.

    Get Price
  • Fabricating Copper Components with Electron Beam

    The additive processing of 99.94% pure copper powder via selective electron beam melting (SEBM) is presented. The high thermal and electrical conductivity of pure copper combined with the freedom ...

    Get Price
  • Products | Carboline

    Description: Carbocrete Fill rapid setting urethane cement underlayment mortar. Applied by trowel or screed bar from 0.5-2.0” (1.3-5.1 cm). Fast and efficient repair for damaged floor slabs. Carbocrete Fill creates sloping on a floor where time doesn't allow the use of normal concrete or polymer floor mortars.

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  • Experts in Spray Technology | Spraying Systems Co.

    The world's leader in spray technology, Spraying Systems Co. designs and manufactures spray nozzles, air control nozzles, tank washers, accessories, spray systems and controls, and fabricated products such as spray headers and lances. Spray analysis, performance testing, prototyping and consulting services are also available.

    Get Price
  • rotary cutting instruments in conservative dentistry

    2012-2-6 · 2. Biological Corrosion of Magnesium 2.1. Corrosion Mechanism When unprotected chemically pure magnesium is exposed to humid atmospheric air it develops a thick dull gray amorphous layer composed of magnesium hydroxide[Mg (OH) 2].The oxidation rate of this protective oxide layer is typically around 0.01 mm/yr, while the oxidation rate in salt water is around 0.30 mm/yr[93].

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  • Biomedical Magnesium Alloys: A Review of Material ...

    Agriculture for Impact. AI @ Imperial. Aimee Morgans lab. Airway Disease. Albrecht Group (The) Algebra and Algebraic Combinatorics. Anaesthesia, sleep and pain. Anaesthetics, Pain Medicine and Intensive Care. Anglian Water Strategic Partnership.

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  • Research groups | Imperial College London

    Glossary of Dental Clinical and Administrative Terms. There are many terms used daily by dentists and their staff in the course of delivering care to patients, maintaining patient records and preparing claims. Many terms are familiar, especially to experienced individuals. New dentists and staff, however, may not be as familiar – and over ...

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  • Glossary of Dental Clinical and Administrative Terms

    2019-12-13 · The Ti-Ni alloys were prepared using commercially pure titanium (Cp-Ti) (99.7% purity, Aldrich Inc., USA) and nickel (99.5% purity, Camacam Industrial, Brazil). The ingots were obtained by arc melting, using a water-cooled copper crucible and an argon-inert atmosphere. The melting was held five times to ensure the homogeneity of the produced ...

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  • Structure, Microstructure, and Some Selected

    2020-8-8 · Arc spectra of pure manganese [center] and of copper containing 0.1 percent manganese as recorded through a rotating stepped sector. Wavelength range, 3960 to 4105A. Arc spectra of copper [top] over wavelength range of 3400 to 3860A; standard …

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  • User:NISTResearchLibrary/gallery - Wikimedia Commons

    Mixture Chemistry Involves Solutions, Suspensions, Colloids, and More. How to Separate Salt and Water. An Overview of General Chemistry Topics. Know the Difference Between Physical and Chemical Properties. Understand the Importance of Chemical Reactions.

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