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  • Dental Enamel Formation and Implications for Oral

    2017-7-1 · The inner and outer enamel epithelium converge at a region called the cervical loop, which is a niche for dental epithelial stem cells (47, 204, 272, 336, 379, 380, 420) and thus provides a constant source of enamel-forming cells until the enamel crown is fully formed with one exception. In rodent incisors, the long teeth in the upper and lower jaws, the stem cell niche in the cervical loop is retained …

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  • Drug Delivery (Nano)Platforms for Oral and Dental ...

    Layered double hydroxides (LDHs) are ionic layers with positively-charged metal plates. The layered structure provides space for ion exchange and is used extensively in drug delivery systems. [99-101] Positive metal plates are usually made up of M +2 and M +3 cations, which can also be loaded with negative ions such as fluoride ions. Fluoride-incorporated LDH structure can be used as buccal …

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  • Mechanical properties of human dental enamel on the ...

    Fracture toughness varied in direction by about 350%, Knoop-microhardness by about 30% and Young's modulus by about 15%. By comparison with the randomly …

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  • Sensors | Free Full-Text | Use of Long Short-Term

    The experimental instruments consisted of a dental device platform and a dental air turbine handpiece . The dental air turbine handpiece (Tiger101-3T4, 300 × 10 3 –360 × 10 3 rpm, Thunder, Tiger group, Taichung, Taiwan) contained a machine head, hand grip, and handpiece connector. The adopted carbide bur (FG 558) had a diameter of 1.0 mm and a total length of 19 mm.

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  • Nano- and micromechanical properties of dentine ...

    2011-5-17 · The large range of distances per track allowed modelling of mean properties (hardness and elastic modulus) by surface (buccal, lingual), distance (linear and quadratic terms), and their interaction. Thus we could examine differences between surfaces near the DEJ and at points (at 50, 100, 200 and 400 μm) between the DEJ and the pulp chamber. The analyses, performed using SAS software v9.1, …

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  • Nanotechnology for dental composites | Request PDF

    Three disc-shape (6 mm diameter × 1 mm thickness) specimens of each eleven nanocomposite series based on different filler particle size formulations (range of 100–1500 nm) and two shapes ...

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  • Search the world's largest collection of optics and ...

    Kernel Flux: a whole-head 432-magnetometer optically-pumped magnetoencephalography (OP-MEG) system for brain activity imaging during natural human experiences Proceedings of SPIE (2021) …

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  • Dental Supplies and Medical Supplies - Henry Schein

    This opens in a new window. In 1932, at the height of the Depression, a pharmacist named Henry Schein started our company with the belief that we can fulfill our responsibilities as a corporate citizen by giving back to the communities we serve. Ever since then, we have pursued the ideal of …

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  • SARS-CoV-2: characterisation and mitigation of risks ...

    2021-1-7 · The particle size distribution of aerosols generated by dental procedures are predominantly <0.3 μm in diameter. This encompasses the reported size range of the SARS-CoV-2 virus (0.05-0.15 μm).

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  • 3D printing of polymer matrix composites: A review

    2017-2-1 · Therefore, 3D printing is highly suitable for development of these components. Up to now, most aerospace components like engine exhaust and turbine blade are 3D-printed with metal materials, , since usually metals are stronger and more flame retardant than polymer materials. Recently, several research institutes are exploring ways to apply 3D printing of polymer composites to aerospace …

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  • Mechanical properties of human dental enamel on the ...

    Nano-indentations (size<500 nm) were made in the cusp area to measure the mechanical properties of single enamel rods at different orientations. The influence of etching on the physical properties ...

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  • Stefan DIMOV | Professor (Full), Head of Advanced ...

    Six dental composites test containing different amount of ZrO2 nano particles 1,3,5,7,and 10wt% were mixed with a Bis-GMA/TEGDMA (70/30 wt%) matrix, and investigated using different tests The ...

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  • Nanotechnology for dental composites | Request PDF

    2016-8-31 · a small air turbine to turn a shaft, as in a dental drill; or it can be expanded through a nozzle to produce a high-speed jet, as in a paint sprayer. Compressed air provides torque and rotation power for pneumatic tools, such as drills, brushes, nut runners, riveting guns and screwdrivers. Such tools are generally powered by

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  • Michael BOTELHO | The University of Hong Kong,

    In 1932, at the height of the Depression, a pharmacist named Henry Schein started our company with the belief that we can fulfill our responsibilities as a corporate citizen by giving back to the communities we serve. Ever since then, we have pursued the ideal of 'doing well by doing good.' This spirit of individuals helping society is ...

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  • Air Compressor - CAGI

    2020-12-16 · In dentistry, the use of high-velocity air and water streams is essential to cool rotary instrumentation used to cut enamel and dentin or high-frequency instrumentation used for dental cleaning. These products can combine with saliva and inevitably cause emission in the form of structured sprays with a high level of procedure-associated ...

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  • Dental Supplies and Medical Supplies - Henry Schein

    2009-4-7 · large number of universities and medical companies, the field of dental simulation has not been well exploited yet. This article focuses on the research and development of a haptics-based dental simulator specially designed for training and performance evaluation of dental and hygiene students and practicing professionals in periodontics. The

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  • Mechanisms of Atomization from Rotary Dental

    Taylor Hobson products deliver an in depth understanding of characteristics such as surface finish, contour, form, radius, roundness, harmonic analysis, alignment, straightness, flatness, parallelism and squareness providing vital feedback for improvements in design and …

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  • Optimization of dental CBCT exposures ... - BIR

    2015-7-20 · A head-sized polymethyl methacrylate (PMMA) phantom (∅16 cm) was used for the analysis of CNR. The phantom is homogeneous with the exception of a central air hole of ∅10 mm at the bottom. As this air hole was needed for CNR measurements, the phantom was placed on another PMMA phantom, allowing for the bottom part to be scanned without ...

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  • Dental Materials Journal - JST

    The aim of this in vitro study was to evaluate the effects of incorporating fluorescent carbon nanoparticles (FCNs) on the hardness, tear, and tensile bond strength of an acrylic-based tissue conditioner and a silicone-based soft denture liner. FCNs added to an acrylic-based tissue conditioner (Viscogel, Dentsply; Group V) and a silicone-based soft denture liner (Ufigel P, Voco; Group U) were ...

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  • KONGSBERG

    2 天前 · KONGSBERG is an international, knowledge-based group that supplies high-technology systems and solutions to customers engaged in the oil and gas industry, the merchant marine, and the defence and aerospace industries.

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  • SARS-CoV-2: characterisation and mitigation of risks ...

    2021-1-7 · The particle size distribution of aerosols generated by dental procedures are predominantly <0.3 μm in diameter. This encompasses the reported size range of the SARS-CoV-2 virus (0.05-0.15 μm).

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  • Amazon.com: Supplied Air Respirator

    3M Supplied Air Respirator Hose W-9435-25/07010 (AAD), 25 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure. 5.0 out of 5 stars. 1. 137.27. 137.

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  • 125 years of developments in dentistry, 1880–2005

    2005-10-22 · In 1957 John Victor Borden's high speed air turbine drill was a sensation at Rome's International Dental Congress. An even greater advance came …

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  • Optics | TNO

    2021-7-26 · Rapid nano allows quick detection of particles, aiming at particles below 20 nm TNO's optical expertise is applied in seven markets: TNO has an excellent track record in space-based imaging absorption spectroscopy with three instruments successfully launched as satellites and still in …

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  • Nanalyze - Investing in Disruptive Technologies

    Caribou Biosciences – Another Gene Editing Stock. We’ll often see people leave comments on our articles like “I’m up +420% on stock X.”. Without a timeframe and a benchmark, it’s impossible to know if that’s good or bad, but most people don’t recognize that …

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  • U.S. Navy Experience with SSS (Synchro-Self-Shifting ...

    2010-8-1 · In the late 1940's and early 1950's, various navies began to consider the use of aeroderivative gas turbines for marine propulsion because the gas turbine was seen as a compact, high-power-to-weight ratio engine that would reduce engine room space, reduce ship size or increase space for armaments, etc., reduce the time required to get a ship underway, and potentially reduce manpower requirements.

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  • ARO Systems | Veterinary - Dental Burs

    Dental burs, the tiny drill pieces for teeth! Dental burs are used in conjunction with the handpiece to cut and polish the dental surface, cutting away hard tissue such as tooth and bone, as well as to remove carious tissue. Dental burs are composed of three main parts (Shank, neck and head). Among the different types of burs (steel, hardened ...

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  • Isolation and characterization of embryonic

    2015-12-23 · Dental enamel formation, known as “amelogenesis,” is initiated by cytodifferentiation of the ectodermally derived dental epithelium. Enamel cannot regenerate itself because once it is completely formed, ameloblasts are lost as the tooth erupts. Rodent teeth have been useful for studying the mechanisms of amelogenesis because ameloblast cell lines can be derived from the ever-growing …

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  • Optimization of dental CBCT exposures ... - BIR

    2015-7-20 · A head-sized polymethyl methacrylate (PMMA) phantom (∅16 cm) was used for the analysis of CNR. The phantom is homogeneous with the exception of a central air hole of ∅10 mm at the bottom. As this air hole was needed for CNR measurements, the phantom was placed on another PMMA phantom, allowing for the bottom part to be scanned without ...

    Get Price
  • Colgate SlimSoft Floss Tip Extra-Soft Compact

    The Colgate SlimSoft Floss Tip Extra-Soft Compact Toothbrush features: 17X Slimmer Floss-Tip Bristles for a Deep Clean. 35% more bristles for a thorough cleaning experience and unique mouth feel. Raised Tip for better access to back teeth. Flexible handle design absorbs force for softer brushing vs. end-rounded regular bristles.

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  • Dental Materials Journal - JST

    The aim of this in vitro study was to evaluate the effects of incorporating fluorescent carbon nanoparticles (FCNs) on the hardness, tear, and tensile bond strength of an acrylic-based tissue conditioner and a silicone-based soft denture liner. FCNs added to an acrylic-based tissue conditioner (Viscogel, Dentsply; Group V) and a silicone-based soft denture liner (Ufigel P, Voco; Group U) were ...

    Get Price
  • DD - Dental Supplies, Services & Products - All in one

    Dental Supplies UK DD, the new name for Dental Directory, is a full-service supplier of dental supplies, equipment and business services in the UK. We supply over 12,000 UK practices with an extensive range of dental products and supplies and our services cover everything you need to run a successful practice including training, compliance ...

    Get Price
  • SARS-CoV-2: characterisation and mitigation of risks ...

    2021-1-7 · The particle size distribution of aerosols generated by dental procedures are predominantly <0.3 μm in diameter. This encompasses the reported size range of the SARS-CoV-2 virus (0.05-0.15 μm).

    Get Price
  • Moog, Inc. - Precision motion control products,

    2005-10-22 · In 1957 John Victor Borden's high speed air turbine drill was a sensation at Rome's International Dental Congress. An even greater advance came …

    Get Price
  • 125 years of developments in dentistry, 1880–2005

    3M Supplied Air Respirator Hose W-9435-25/07010 (AAD), 25 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure. 5.0 out of 5 stars. 1. 137.27. 137.

    Get Price
  • Portable Dental Equipment

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

    FDA & CE approved ,Lovely Snail Children Dental Chair/Unit,External Little Cute Fish Floor Box,Hand Cart,Microfiber Leather. SKU: TR-KID-9. Rating: 100%. 2 Reviews. 4,300.00 As low as 3,900.00. Add to Cart. Wish List Compare. FDA & CE approved, Economical And Practical Dental Chair, Dental Unit, Built-in Tissue Box.

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  • Clinic Equipment - FDA Approved | Treedental

    2021-7-26 · Rapid nano allows quick detection of particles, aiming at particles below 20 nm TNO's optical expertise is applied in seven markets: TNO has an excellent track record in space-based imaging absorption spectroscopy with three instruments successfully launched as satellites and still in …

    Get Price
  • Optics | TNO

    Dental Supplies UK DD, the new name for Dental Directory, is a full-service supplier of dental supplies, equipment and business services in the UK. We supply over 12,000 UK practices with an extensive range of dental products and supplies and our services cover everything you need to run a successful practice including training, compliance ...

    Get Price
  • Moog, Inc. - Precision motion control products,

    2017-9-22 · Avulsion has been reported in 1-16% of dental injuries. 11 Outcomes are largely dependent upon the storage medium of the avulsed tooth, the extraoral dry time, the stage of …

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  • DD - Dental Supplies, Services & Products - All in one

    3 years & up. It's fun and easy to demonstrate good oral hygiene with our extra-large teeth and toothbrush. The teeth open wide for a closer look and allows children space to practice brushing the teeth and the tongue! Dental model measures 4.5'H x 5'L x 5.5'W and toothbrush measures 10'L x .75'W.

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  • Oral surgery II: Part 1. Acute management of

    2010-8-1 · In the late 1940's and early 1950's, various navies began to consider the use of aeroderivative gas turbines for marine propulsion because the gas turbine was seen as a compact, high-power-to-weight ratio engine that would reduce engine room space, reduce ship size or increase space for armaments, etc., reduce the time required to get a ship underway, and potentially reduce manpower requirements.

    Get Price