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

    2008-1-1 · Air-turbine handpieces have been recommended in a number of contexts where there would seem to be a particularly high risk of this, and there have been many such reports: 170–194 including pneumoparotid, 195 subcutaneous facial and cervical, mediastinal, and orbital. There may be grave or fatal complications: dogs may die if air is introduced under pressure into the root canals of their teeth…

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  • Developments in investment casting process—A review ...

    2012-11-1 · Nowadays, dental crowns are also fabricated by investment casting using ice patterns, generated by rapid freeze prototyping. (Liu and Leu, 2003) carried out a study in which a comparison was made between the surface roughnesses of dental crowns produced from the ice patterns compared to wax patterns. It was found that the surface roughness of the dental crowns produced …

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  • US6331217B1 - Turbine blades made from multiple single ...

    Large gas turbine blades made from separate cast segments of superalloys are disclosed. The turbine blade is designed such that bond lines between adjacent segments are placed in low stress regions of the blade. The cast superalloy segments of the blades are aligned and fitted together with specified tolerances.

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  • A Brief Introduction of Dental Air Polisher -Alandental.com

    The mixture of water and powderladed stream occurs on the tooth surface and forms a “slurry” that is responsible for the cleaning action. More recent technology produces a slurry by introducing the water stream into the powder-laden air stream, within the spray head at a critical moment, to produce a fully homogeneous stream that is emitted from a single nozzle.

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  • Centrifugal Casting Machine, Vacuum Jewelry Lost Wax ...

    2021-7-26 · Fillings are used to repair cracked or broken teeth. The most common application is in the crowns, where the alloys form the core onto which the porcelain is bonded to build up an artificial tooth. Since the late 1970s, palladium has been a great metal used in the dental industry for the manufacture of crown and bridge restoration, constructed by dental technicians.

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  • Patient-Specific Surgical Implants Made of 3D Printed PEEK ...

    2021-7-26 · Sand casting involves several steps, including patternmaking, molding, melting and pouring, and cleaning. The pattern is the form around which the sand is packed, usually in two parts, the cope and the drag. After the sand is compacted enough to replicate the pattern, the cope is removed and the pattern extracted.

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  • Different Types of Casting Processes used in Manufacturing

    2016-7-14 · Garnet (reddish) and Quartz (white) • Used for coated discs • Available in a series of particle sizes ranging from coarse to medium-fine. • Used for initial finishing. • Hard enough to cut tooth and other restorative materials except some porcelain. Pumice • Powdered abrasive produced by crushing foamed volcanic glass into thin glass flakes.

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  • (PDF) Infection Control and Prevention in Dentistry

    Academia.edu is a platform for academics to share research papers.

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  • A Brief Introduction of Dental Air Polisher -Alandental.com

    Effects of air polishing on gold foil, gold castings, porcelain, amalgam, and glass ionomers have been studied. Air polishing of amalgam alloys and other metal restorations has produced a variety of effects, including matte finishes, surface roughness, …

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  • An overview of the uses of per- and polyfluoroalkyl ...

    Per- and polyfluoroalkyl substances (PFAS) are of concern because of their high persistence (or that of their degradation products) and their impacts on human and environmental health that are known or can be deduced from some well-studied PFAS. Currently, many different PFAS (on the order of several thousan Recent Open Access Articles Environmental exposure and impacts

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  • Different Types of Casting Processes used in Manufacturing

    2021-7-26 · A brief discussion of the different types of casting processes. Image credit: Funtay/Shutterstock.com. Casting manufacturing is a process in which liquefied material, such as molten metal, is poured into the cavity of a specially designed mold and allowed to harden. After solidification, the workpiece is removed from the mold to undergo various finishing treatments or …

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  • An overview of the uses of per- and polyfluoroalkyl ...

    2012-2-1 · Unless adequately disinfected, a wide variety of dental equipment may pose unacceptable risks of cross infection. Handpieces and their attachments, including prophyangles attached to slow-speed motors for cleaning and polishing teeth, and high-speed motors and their burs used for drilling are particularly prone to patient contamination.

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  • Cross contamination in dentistry: A comprehensive

    Academia.edu is a platform for academics to share research papers.

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  • (PDF) The Jet Engine (Rolls Royce) | la bv - Academia.edu

    TURBINE STEAM PATH MAINTENANCE AND REPAIR Volume 2. R. Pugliesi. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 23 Full PDFs related to this paper. Read Paper. TURBINE STEAM PATH MAINTENANCE AND REPAIR Volume 2.

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  • Classification of Casting MCQ [Free PDF] - Objective ...

    The investment casting process also called the lost-wax process begins with the production of wax replicas or patterns of the desired shape of the castings; It is preferred where intricate shapes are required like jewellery, sewing machines, firearms, surgical and dental devices, turbine blades, gear impeller, hand tools, cranks, and levers.

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  • A Brief Introduction of Dental Air Polisher -Alandental.com

    Effects of air polishing on gold foil, gold castings, porcelain, amalgam, and glass ionomers have been studied. Air polishing of amalgam alloys and other metal restorations has produced a variety of effects, including matte finishes, surface roughness, …

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  • Aqueous Cleaning for Aerospace | Production Machining

    2020-1-29 · The overview describes the main directions and results of the II International Conference on Advanced Technologies in Aerospace, Mechanical and Automation Engineering - MIST: Aerospace-2019 held in Krasnoyarsk in November 18-21, 2019. It gives the details about the participants and the proceedings.

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  • An overview of the uses of per- and polyfluoroalkyl ...

    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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  • IOP Conference Series: Materials Science and Engineering ...

    The blades run very quietly, and backside tearout in plywood is negligible. Each blade is virtually hand-made. The plate is hand-tensioned (up to 15 minutes per blade), superior C-4 carbide teeth are hand-brazed to the plate, and the blade is straightened and restraightened multiple times throughout the process.

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  • KONGSBERG

    2014-2-22 · The process is generally used for small castings, but has been used to produce complete aircraft door frames, steel castings of up to 300 kg (660 lbs) and aluminium castings of up to 30 kg (66 lbs). It is generally more expensive per unit than die casting or sand casting, but has lower equipment costs.

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  • Hong Kong Dental Association Ltd.

    A hygienist is a person trained to perform preventative procedures such as cleaning teeth, applying fluoride, placing sealants, taking x-rays and educating patients on oral health care. Dental hygienists must practice under the supervision of a dentist. I Impaction Impacted tooth

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  • Study Points - Course #58582: Infection Control for Dental ...

    2021-7-15 · Aerosols, droplets (produced by the respiratory tract), and splatter contaminated with blood and bacteria are produced during many dental procedures .Devices such as dental handpieces, ultrasonic and sonic scalers, air polishers, air-water syringes, and air abrasion units produce visible aerosol clouds and possible airborne contamination.

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  • Guyson Plastic Blast Media

    Guyson Flashgrit is a specially produced soft acrylic thermoplastic blast media, often specified for military and aerospace dry stripping i.e. paint removal applications. All product is manufactured to comply with US Military specification MIL-P-85891A and Rolls-Royce CSS227 standards. It is commonly known as US Type 5 plastic media.

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  • Creating simplicity in metrology-assisted assembly ...

    ARGON Measuring Solutions played a vital integration role in development of a ground-breaking metrology-assisted assembly solution for the Siemens Gamesa facility in Cuxhaven, including developing the project’s custom-made front-end software solution. Founder and owner of ARGON Geert Creemers told us all about the project and ARGON’s driving “coffee-machine …

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  • An overview of the uses of per- and polyfluoroalkyl ...

    Per- and polyfluoroalkyl substances (PFAS) are of concern because of their high persistence (or that of their degradation products) and their impacts on human and environmental health that are known or can be deduced from some well-studied PFAS. Currently, many different PFAS (on the order of several thousan Recent Open Access Articles Environmental exposure and impacts

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  • Buehler - Metallography Equipment & Supplies for Sample ...

    Buehler is a manufacturer of metallographic testing equipment including scientific instruments & supplies for cross-sectional material testing. Buehler’s sectioning, mounting, grinding and polishing, imaging and analysis and hardness testing metallographic equipment along with consumables are used by metallurgical, metallography, petrography ...

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  • The Hole Edge | Cutting Tool Engineering - ctemag.com

    2011-3-1 · Recommended speeds and feeds depend upon the work material, number of teeth in the tool, tool material and design, and tool coating. Table 1 (see below) provides recommended cutting speeds for uncoated HSS and carbide countersinks in various materials. Table 1. Recommended speeds for countersinking. Material. Recommended surface speed (sfm) HSS ...

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  • FirstFix Dental - Dental Equipment Suppliers Worldwide

    2016-2-3 · They also provides including lights, chairs, and even cabinets. Dental supply companies are located all over the world, and their tools are often offered online, as well. If you are looking for Cheap Dental Equipment, it is better to find out online. FirstFixDental is a trusted name in Dental Equipments Suppliers.

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  • 5 Best Wind Generators Reviews of 2021 - BestAdvisor.com

    2021-7-26 · Thomasnet.com is the leading product sourcing and supplier discovery platform for procurement professionals, engineers, plant & facility management and business owners seeking trusted suppliers for MRO, OEM and other products/services for their industrial, manufacturing, commercial and institutional businesses

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  • Guidelines for Infection Control in Dental Health-Care ...

    Examples of regulated waste found in dental-practice settings are solid waste soaked or saturated with blood or saliva (e.g., gauze saturated with blood after surgery), extracted teeth, surgically removed hard and soft tissues, and contaminated sharp items (e.g., needles, scalpel blades, and …

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  • Course Content - #58582: Infection Control for Dental ...

    2021-7-25 · Effective infection control techniques are critical to reducing the incidence of infections in dental facilities. Antiseptic techniques and antibiotics will kill micro-organisms, while proper hand hygiene will block their transmission. Gloves, gowns, and masks remove dental professionals from the transmission cycle by protecting them from contact with micro-organisms.

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  • Article - Adams School of Dentistry:

    2021-6-1 · Purpose. The Adams School of Dentistry (ASOD) is committed to utilizing the most current research and technology to maintain an infection control program that is practical while meeting regulatory standards set by the Centers for Disease Control (CDC), the Occupational Safety and Health Administration (OSHA), and the NC State Department of Health and Human …

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  • The Hole Edge | Cutting Tool Engineering - ctemag.com

    2011-3-1 · Recommended speeds and feeds depend upon the work material, number of teeth in the tool, tool material and design, and tool coating. Table 1 (see below) provides recommended cutting speeds for uncoated HSS and carbide countersinks in various materials. Table 1. Recommended speeds for countersinking. Material. Recommended surface speed (sfm) HSS ...

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  • Influence of the preparation form on the retention of ...

    2020-1-18 · Removable dental prostheses (RDPs) still represent an important form of prosthetic rehabilitation [].Various therapeutic concepts are known for the removable prosthetic restoration of partially edentulous jaws [].A particularly tooth tissue preserving and esthetically pleasant treatment modality to retain RDPs is resin-bonded attachments (RBAs), which can be used if the abutment teeth …

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  • [Solved] Which one of the following casting processes ...

    2019-6-23 · Explanation: Casting: It is a manufacturing process in which liquid material is filled into the mould, which contains a hollow cavity of the desired shape and then allowed to solidify. The solidified part is known as a casting, which injected or broken out of the mould to complete the process.. Investment casting:. The investment casting process also called the lost-wax process …

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  • Chemistry topics, T - University of Queensland

    2021-7-9 · Chemistry T Table of Contents Tabersonine, alkaloid Table 2 Table of Elements Table salt and rock salt: 19.1.16 Tagatose, C6H12O6, Aldoses and ketoses (Table) Talc, Mg3Si4O10(OH)2: 35.23.7 (Geology) Talcum powder, talc, baby powder Tallow Talose, C6H12O6, Aldoses and ketoses (Table) Tamoxyfen, C26H29NO, 'Nolvadex', oestrogen receptor, used for breast cancer …

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  • Foundry Manual - Part 3 - Maritime

    5 Best Non-Toxic Cleaning Supplies for a Spick-and-Span Home. Onayeme Jelugbo DIY 'Lemonade' Decorative Candle. Jonathan Fong 10 Shower Hacks You'll Wish You Knew Sooner. Kathryn Walsh 5 Beautiful DIY Terrarium Kits to Bring a Touch of Nature Indoors. Sam Benitz

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  • Home Sweet Home | eHow

    made of natural or synthetic materials. polsh teeth and restorations, may be used to remove stains from deep pits and fissures of enamel surfaces. can be used with various pastes can cause severe ginigival lacerations and must be used with care. not recommended on exposed cementum or dentin because these surfaces are soft and easily grooved

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