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  • Surface remineralization potential of nano

    Methods: Enamel sections were obtained from 40 sound molars - 20 primary and 20 permanent molars. Five enamel slabs were prepared from these extracted molars stored in artificial saliva, wherein one slab acted as control, second as demineralized (negative control), and other three slabs were brushed with sodium monofluorophosphate, amine ...

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  • Effect of an Experimental Paste with Hydroxyapatite ...

    Two-hundred and forty enamel and 240 dentine specimens were selected by using surface microhardness; half of them were subjected to pre-demineralisation and the other half remained sound. Sound specimens were further exposed to severe cariogenic challenge (20% sucrose in biofilm) in situ, while pre-demineralised specimens were not.

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  • Handpiece-Turbines.com: NSK Premium Autochuck

    NSK N-65M Canister Autochuck Turbine for NSK N-65M Surgical Dental Handpiece. Our replacement turbines are the perfect fit for your handpiece. For over 20 years, we have served the dental …

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  • Nano-indentation characterisation of natural carious

    The aim of this paper was to characterise the mechanical properties (MPs) and microstructural features of natural enamel white spot lesions (WSLs) using nano-indentation. Five natural WSLs from 4 extracted sound premolar teeth were cross-sectioned.

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  • The Nano, the Tiny Turbo Tecma Toilet | Thetford

    2016-1-1 · Polyetheretherketone (PEEK) is a synthetic, tooth colored polymeric material that has been used as a biomaterial in orthopedics for many years [1], [2], [3]. The monomer unit of etheretherketone monomer ( Fig. 1) polymerizes via step-growth dialkylation reaction of bis-phenolates to form polyetheretherketone.

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  • Applications of polyetheretherketone (PEEK) in oral ...

    2018-6-11 · MACRO SHEARTEST In macroshear tests, a composite cylinder of restorative material is fixed to a flat enamel or dentinal surface after the application of adhesive Force is then applied parallel to the tooth surface until the bond fails. MACROTENSILETEST In macrotensile tests, tensile force is applied to a cylinder of restorative material (typically composite) that has been polymerized onto a flat enamel …

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  • Bonding to enamel and dentin - SlideShare

    2007-4-28 · Clinically, this is seen as ejection of micro-fragments of tooth tissue within the laser plume and the change in pressure in the immediately surrounding air results in an audible 'popping' sound ...

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  • Surgical lasers and hard dental tissue | British Dental ...

    聯絡我們. 地址: 香港柴灣新業街8號八號商業廣場23樓. 電話: (852) 2563 5193. 傳真: (852) 2565 9537. 電郵: [email protected]

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  • 1987. Prognostic diagnosis of the health status of an air ...

    air-turbine dental handpiece rotor by using sound and vibration signals Huang Yi-Cheng1, Liu Chang-Chih2, Chuo Po-Chou3 Department of Mechatronics Engineering, National Changhua University of Education, Changhua, Taiwan 1Corresponding author E-mail: [email protected], [email protected], [email protected]

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  • The Nano is an original Tecma design | Thetford Marine

    2012-5-17 · Flow around a surface-mounted finite circular cylinder completely submerged within the bottom boundary layer. European Journal of Mechanics - B/Fluids, Vol. 86 ... Optimum design of a saw-tooth-shaped dental air-turbine using design of experiment. ... Journal of Sound …

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  • Comparison of two-equation turbulence models for

    2016-7-27 · The sound produced by a dental air turbine handpiece (dental drill) can markedly influence the sound environment in a dental clinic. Indeed, many patients report that the sound of a dental drill elicits an unpleasant feeling. Although several manufacturers have attempted to reduce the sound pressure levels produced by dental drills during idling based on ISO 14457, the sound emitted by such ...

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  • Trials Begin For Lozenge That Rebuilds Tooth Enamel |

    Elliott steam turbines are rated for inlet steam conditions up to 2000 psig/1005 degrees F and speeds up to 20,000 rpm. Elliott steam turbines come in a variety of sizes ranging from small, 20 HP (15 kW) single-stage units, to large 175,000 HP (130,000 kW) multi-valve, multi-stage extraction condensing units.

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  • Statistical Analysis for Subjective and Objective ...

    Demineralized enamel specimens were exposed to dentifrices containing 5% or 10% nano-HA, or 1100 ppm fluoride, respectively, via an intraoral appliance worn by 30 adults over a 28-day period. Treatment with all three dentifrices caused significant reduction of the lesion depth and extent of demineralization detected at baseline.

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  • Steam Turbines - Elliott Group

    A teflon cylinder 10 mm in diameter and 2 mm high was used for preparation of the RMGIC cylindrical specimens. Fuji Bond LC and Riva Bond LC were mixed and placed in the teflon ring without light cur-ing and then stored in total darkness for 24 h (two specimens were prepared from each RMGIC adhesive system). Two specimens of Ketac N100 primer ...

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  • Demineralization - an overview | ScienceDirect Topics

    1. Introduction. The removal and shaping of tooth structure are an essential aspect of restorative dentistry. Most of the dental restorations are either extra-coronal restorations (crowns and fixed partial dentures), intra-coronal restorations (inlays, amalgam, glass ionomer or composite) or a combination of the above [].Although new techniques using lasers, air abrasion and chemo-mechanical ...

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  • Australian Dental Journal - Wiley

    DESPITE numerous findings that intact enamel is permeable in certain circumstances to various dyes, radioactive tracers and other chemically identifiable substances1, the ionic-sieve behaviour of ...

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  • The Nano, the Tiny Turbo Tecma Toilet | Thetford

    2020-7-30 · A nano-hybrid composite (TetricEvoCeram, Ivoclar Vivadent, Schaan, Liechtenstein) was adhered to the enamel surface by means of a transparent plastic hollow cylinder with an inner diameter of 3 mm as described in detail previously (Figure 1).28 The composite was packed against the surface in a 2 mm thick increment, which was then

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  • Efectofcariesiniltrantapplicationonshearbondstrengthofdife ...

    A hybrid nano-ceramic that actually “bends and flexes” in the mouth. XircOn Ultra is one of the most anticipated dental science advances in the past decade. With a combination of nano-ceramics and polymers, this is the closest material to human teeth and looks and feels more natural than any other product on the market.

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  • Hybrid Nano-Ceramics for Dental Restorations |

    2012-5-17 · Flow around a surface-mounted finite circular cylinder completely submerged within the bottom boundary layer. European Journal of Mechanics - B/Fluids, Vol. 86 ... Optimum design of a saw-tooth-shaped dental air-turbine using design of experiment. ... Journal of Sound …

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  • Comparison of two-equation turbulence models for

    2009-9-1 · The SBMP system (Group 5) showed the best results on enamel, because of its good bonding efficacy,23,29–30 sufficient enamel etching ability of 35% phosphoric acid and the presence of polyalkenoic acid copolymers in SBMP-primer that lead to bonding durability in a wet environment.30–31 Moreover, repeated formation of the calcium ...

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  • Treatment Options for Hypoplastic ... - AEGIS Dental

    Nanotechnology is a promising technological advancement that can revolutionize agriculture and food production systems, but the technology must be thoroughly researched before being implemented. Nanobiosensors, nanofertilizers, and nanopesticides have the potential to significantly change the agricultural world.

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  • Effect of Phosphoric Acid Etching of Enamel Margins

    2015-4-24 · Randomised controlled trial, double blind, in a community setting. School children with active caries in primary teeth and no pulpal exposure, fistula or decay in permanent teeth were chosen.

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  • Nanotechnology and Emerging Technologies News

    Interrod regions exist between the enamel rods and are known to have different crystallite orientations and a higher organic content compared to the enamel rods (the intrarod regions). This study aims to characterize the mechanical properties of both regions especially the time-dependent properties by using spherical indentation. Despite the very small amount of proteins, the interrod region ...

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  • Nano Silver Fluoride for preventing caries | Evidence ...

    All classifieds - Veux-Veux-Pas, free classified ads Website. Come and visit our site, already thousands of classified ads await you ... What are you waiting for? It's easy to use, no lengthy sign-ups, and 100% free! If you have many products or ads, create your own online store (e-commerce shop) and conveniently group all your classified ads in your shop! Webmasters, you can add your site in ...

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  • [Analysing noise levels in dental environment. Air

    Dental Air Turbine sound depends on the mechanical performance such as rotation and it is impossible to neglect connections of the sound with fluid mechanics and acoustics. Turbine sound must be considered from the standpoint of the sound pressure level and frequency component. In this study, the sound samples was measured and analysed in ...

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  • Products|NSK-Nakanishi United Kingdom

    2021-6-2 · The operation manuals on this webpage are the most current versions available at this time. All manuals are subject to change without notice. To ensure that you always have the most current manual, please check this website regularly for updates.

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  • Efectofcariesiniltrantapplicationonshearbondstrengthofdife ...

    2020-7-30 · 1 Effect of caries infiltrant application on shear bond strength of different adhesive systems to sound and demineralized enamel Liuhe Jia1,2, doctorate student: performed the experiments, wrote the manuscript Bogna Stawarczyk3, dental technologist: performed the shear bond strength test PD Dr. Patrick R Schmidlin1, assistant professor: contributed substantially to

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  • Trials Begin For Lozenge That Rebuilds Tooth Enamel |

    2016-1-1 · Polyetheretherketone (PEEK) is a synthetic, tooth colored polymeric material that has been used as a biomaterial in orthopedics for many years , , .The monomer unit of etheretherketone monomer polymerizes via step-growth dialkylation reaction of bis-phenolates to form polyetheretherketone.A common synthesis route for PEEK is the reaction between 4,4′-difluorobenzophenone and the …

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  • Applications of polyetheretherketone (PEEK) in oral ...

    2020-7-6 · Introduction. A common and widely accepted dental restorative material is glass-ionomer cement (GIC). GIC offers unique features such as good biocompatibility, chemical bonding to enamel and dentin, low thermal expansion coefficient, and anti-cariogenic properties due to the release of fluoride. 1 Although GICs have antibacterial properties due to the release of fluoride, the main reported ...

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  • Mutlu Özcan | University of Zurich, Switzerland -

    2017-10-12 · Cold-light bleaching treatment has grown to be a popular tooth whitening procedure in recent years, but its side effect of dental enamel demineralization is a widespread problem. The aim of this study was to synthesize zinc-substituted hydroxyapatite as an effective biomaterial to inhibit demineralization or increase remineralization. We synthesized zinc-substituted hydroxyapatite …

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  • The Effects of Silver, Zinc Oxide, and Titanium Dioxide ...

    skydent surgical corporation is with Dürr Dental Italia. June 26 at 9:30 PM ·. Mobile high volume spray mist suction with 300 l/min at the cannula. Only electricity and no other requirements necessary. Vacuum generation and separation in one compact unit, on request even with amalgam separation.

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  • Nanotechnology and Emerging Technologies News

    Nanotechnology is a promising technological advancement that can revolutionize agriculture and food production systems, but the technology must be thoroughly researched before being implemented. Nanobiosensors, nanofertilizers, and nanopesticides have the potential to significantly change the agricultural world.

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  • Dr. Abdessattar Abdelkefi | Department of Mechanical ...

    Associate Professor Ph.D., Virginia Tech., 2012 Tel: (575) 646-6546 Email: [email protected] Office: Jett Hall, Room 108 Lab Nonlinear Dynamics & Energy Harvesting Laboratory (NDEHL) Google Scholar: Articles & Citations Research Interests Dynamics & Vibrations, Aeroelasticity and ...

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  • Effect of Phosphoric Acid Etching of Enamel Margins

    2009-9-1 · The SBMP system (Group 5) showed the best results on enamel, because of its good bonding efficacy,23,29–30 sufficient enamel etching ability of 35% phosphoric acid and the presence of polyalkenoic acid copolymers in SBMP-primer that lead to bonding durability in a wet environment.30–31 Moreover, repeated formation of the calcium ...

    Get Price
  • The 25 Worst Foods and Drinks for Your Teeth and

    15) Potato chips. Starchy foods like to get stuck between your teeth. As tasty as potato chips are, unfortunately, the starch in it and its mushy texture means it will stay trapped between your teeth for a long time. If possible, rinse with water and floss to remove the trapped debris.

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  • Accessories and service The technology at a glance ...

    2017-6-12 · Dürr Dental aG Höpfigheimer Strasse 17 74321 Bietigheim-Bissingen Germany www.duerr.de ... Cylinder 2 2 4 3 Displacement (l/min) 140/150 140/150 280/300 250 ... the turbine, the air abrasion unit and the control of the treatment units. The com-

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  • Efficacy of 4-year treatment of icon infiltration resin

    2021-6-28 · White spot lesions are defined as enamel surface and sub surface demineralisation, although these lesions can be reversed and do not form cavities. Infiltration using fluid resin proved to be a valid micro-invasive alternative compared with traditional conservative therapy. This has allowed treatment without any trauma (no use of local anaesthesia and cavity preparation) of numerous lesions in ...

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  • Dental Supplies Online Store for Dental Professionals ...

    YUSENDENT CX235C6-22 Dental LED 20:1 Implant Surgery Contra Angle Handpiece. £287.99.

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  • Vertical turbines could be the future for wind farms ...

    2021-4-27 · The now-familiar sight of traditional propeller wind turbines could be replaced in the future with wind farms containing more compact and efficient vertical turbines. New research has found that ...

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  • How to Power Arduino Nano: Tutorial for Beginners -

    2020-12-17 · Through regulated 5 volt sources. This is the standard and often used way to supply power to the Arduino Uno. It has a small disadvantage in that you need to somehow convert the input voltage to 5 volts, but there are many solutions to this problem. This input is on pin 27. The Nano has only the three inputs described above, and this is worth ...

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  • Spring Cloud Alibaba

    Flow control and service degradation:flow control, circuit breaking and system adaptive protection with Alibaba Sentinel. Service registration and discovery:instances can be registered with Alibaba Nacos and clients can discover the instances using Spring-managed beans. Supports Ribbon, the client side load-balancer via Spring Cloud Netflix

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