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three-dimensional dental highspeed handpiece turbine made of polymer materials

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  • Three-dimensional comparative study on the accuracy and ...

    Statement of problem: Studies investigating the precision of 3-dimensional (3D) printed casts for fixed prosthodontics are scarce. Purpose: The purpose of this in vitro study was to compare the accuracy and reproducibility of dental casts made by the conventional method and by 3D printing. Material and methods: A master model was designed and fabricated with polyetherketoneketone.

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  • China Dental Supply manufacturer, Dental Consumables ...

    Dental Equipment 2 Holes High Speed Self Generator LED Dental Highspeed Handpiece Air Turbine Micro Motor Dental Handpiece 4 Holes LED Push Button FOB Price: US 28-32 …

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  • Three dimensional nanosuperstructures made of two ...

    2019-12-1 · Three-dimensional graphene foams derived from various templates through CVD have demonstrated high surface areas [59,60,152,153]. Those made of Ni foams offer a surface area up to 850 m 2 g −1, which can be modulated by tuning the number of layers deposited with different deposition time and flow rate . However, the intrinsic large pores of ...

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  • Three-dimensional imaging of polymer materials by

    2014-3-1 · Three-dimensional (3D) imaging of the organisation of complex material systems is one of the most actively developing areas of modern microscopy, and tomography is the main approach [1], [2]. Tomography, in its old Greek meaning, refers to a technique to draw (reconstruct) a section of an object, referring to inner sections as opposed to surfaces.

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  • Three‐dimensional chemical reactors: in situ materials ...

    2020-12-11 · Polymer International. Volume 70, Issue 7 p. 964-976. Mini-review. Three-dimensional chemical reactors: in situ materials synthesis to advance vat photopolymerization Daryl W Yee, Corresponding Author. ... We provide a brief overview of the materials that are currently accessible via VP and highlight recent advances in the field.

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  • Preliminary Study on the Assessment of the Marginal Fit of ...

    2020-9-7 · been the use of three-dimensional (3D) additive printers in dental laboratories and dental clinics [9]. Three-dimensional additive technology allows the obtaining of prostheses, radiological and/or surgical splints, digital models, etc. made with di erent materials at a competitive cost and without the loss of

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  • Comparison of Retention of Clasps Made of Different ...

    An undercut depth of 0.01inch was created on the mesiobuccal surface of the premolar and distobuccal surface of second molar. Three dimensional finite element model of clasp assembly was designed and assigned with the properties of two different materials namely acetal resin and cobalt-chromium in successive steps.

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  • Machinability of high-speed enamel cutting with carbide ...

    2020-3-1 · Therefore, dental high-speed air-turbine handpiece cutting is actually a type of high-speed cutting. The dental high-speed air-turbine handpiece is powered by compressed gas. The general pressure range for cutting is between 0.2 MPa and 0.35 MPa, and the bur rotating speed can achieve 250–360 krpm.

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  • Dental Polymers | Pocket Dentistry

    2020-5-6 · More importantly, the three-dimensional evolution for early-stage polymer aging was demonstrated: faster aggression in the horizontal plane (4.1 × 10 –4 s –1) than in the vertical direction (2.6 × 10 –9 m s –1) for PP films.

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  • Accuracy of three-dimensional dental resin models created ...

    2018-3-6 · Recipient(s) will receive an email with a link to 'Accuracy of three-dimensional dental resin models created by fused deposition modeling, stereolithography, and Polyjet prototype technologies: A comparative study' and will not need an account to access the content.

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  • Azenic Highspeed (428) - DentAzone.com

    Dental Azenic Highspeed offers the performance of a metallic highspeed handpiece with the ease and infection control benefits of a disposable for every application.

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  • Emerging trends in endodontic irrigation - Dental Journal

    handpiece is operated by depressing the light-touch on/off switch that activates the strong and flexible polymer tips. The three-speed sonic motor switch provides options of 10,000, 6,000 and 2,000 cycles per minute (cpm). When the handpiece is activated, the power defaults to 10,000cpm,

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  • Three-dimensional graphene-based polymer

    2020-9-7 · been the use of three-dimensional (3D) additive printers in dental laboratories and dental clinics [9]. Three-dimensional additive technology allows the obtaining of prostheses, radiological and/or surgical splints, digital models, etc. made with di erent materials at a competitive cost and without the loss of

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  • Preliminary Study on the Assessment of the Marginal Fit of ...

    Publisher Summary. The dental air-turbine handpiece rapidly gained widespread acceptance by the dental profession after its introduction in the late 1950s and it continues to be used as the main means of carrying out cutting work in clinical dental practice, whether of tooth tissue or restorative materials.

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  • Dental Biomaterials | ScienceDirect

    2009-9-13 · The efficiency of polymer solar cells critically depends on the intimacy of mixing of the donor and acceptor semiconductors used in these devices to …

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  • Three dimensional printed degradable and conductive ...

    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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  • The effect of three-dimensional morphology on the ...

    2018-4-6 · The upper and lower anterior teeth of 3 beagle dogs, were raised under strictly controlled conditions, were cut using air turbine handpiece or by Er:YAG laser irradiation. Changes in the pulp and dentin of these teeth were examined histopathologically under light microscope and scanning electron microscope (SEM).

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  • Photomobile polymer materials—various three-dimensional ...

    2019-4-1 · A polymer is stored in a mobile vat/holder. The vat travels up or down following a light/laser source which polymerizes the polymer layer-by-layer (or continuously) into a three-dimensional structure. Polymers Ceramics: Fine resolution High quality: Limited materials Difficult workability Expensive technology: 5–10 , , Inkjet printing

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  • The potential of three-dimensional printing technologies ...

    2018-7-31 · Part of research outputs has been patented, and the results on the flexible sensor using three dimensional polymer nanocomposites were published in Composites Science and Technology. The project was supported by the National Nature ScienceFoundation of China, the National 1000-TalentProgram, as well as the Research Fund from the Alliance of Special FineChemical …

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  • Three-dimensional architecture constructed from a

    2019-5-25 · To fabricate a photonic crystal with large and complete photonic bandgap, it often requires backfilling of high index inorganic materials into a 3D polymer template. However, the pore network may become disconnected before the template is completely filled in a conformal coating process, which, therefore, limits the achievable maximum bandgap in the 3D photonic crystals. …

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  • A three-dimensional multilayer graphene web for polymer ...

    Cutting efficiency of air-turbine burs on cast titanium and dental casting alloys, ... Evaluation of machinability by cutting environments in highspeed milling of difficult-to-cut materials, ... Pre-Deformation-Assisted Cryogenic Micromachining for Fabrication of Three-dimensional Unique Micro Channels, ...

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  • Three-dimensional network structured α-Fe2O3 made from

    2016-12-28 · Three‐dimensional (3D) ordered arrays of human immunoglobulin G (IgG) were fabricated using well‐defined full‐length antibody–polymer conjugates (APCs). The conjugates were prepared through a two‐step sequential click approach with a combination of oxime ligation and strain promoted alkyne–azide cycloaddition.

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  • Dimensional stability and microleakage of SMART dental ...

    2020-5-21 · A high speed handpiece under running water with a cylindrical diamond burr of 1.6mmX4mm (diameter and depth) were used for this purpose. In the presence of carious lesions, soft caries were removed with a hand scaler until a hard surface remained. Each cavity was thoroughly dried for 10 seconds with a three in one dental syringe and filled

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  • Dental Supplies and Equipment

    2021-5-29 · Highspeed Handpiece - Push-Button Type (Nakamura) Made in Japan Hygiene Prophy Handpi Buy 4 Get 1 Free 360 Degree Swivel Hygiene Prophy Handpiece, Compact size with lightweight - Made in Japan Impact Air Surgical Handpiece 45 Degree (Palisades) Impact Air 45 is designed for use in periodontal and endodontic procedures.

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  • Study of Surface Structure Changes for Selected Ceramics ...

    2019-6-12 · In the article has been presented an analysis of susceptibility of selected dental materials, made in the CAD/CAM technology. The morphology and structural properties of selected dental materials and their composites were determined by using XRPD (X-ray powder diffraction) techniques, as well as the IR (infrared) spectroscopy.

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  • Lab Brushes (1183) - DentAzone

    Handpiece Cleaners; Highspeed Handpieces. Dentex Highspeeds; Tornado Highspeeds; Vector HighSpeed Handpieces; ... Turbine Replacements. Misc Turbines (Kavo, W&H, Midwest) Tornado Replacement Parts; ... 3-D Dental Retraction Materials - Cords, Twists, & Braids; 3-D Dental Retraction Materials - Hemostatic Solutions ...

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  • Publications | Pierre Fauchard Academy

    Many of the handpieces are noteworthy, such as Norlen's 'Dentalair,' conceived in 1948, Walsh's air turbine handpiece of 1949, Nelsen's water turbine handpiece (1952) and Page's belt-driven high-speed handpiece of 1955.41 It was in 1957, however, that a handpiece was introduced that revolutionized the practice of dentistry almost overnight.

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  • The Journal of the Japanese Society for Dental Materials ...

    Functionally gradient materials(FGM)composed of titanium-apatite and titanium-fused quartz were made for dental use. Mixed powders of titanium and ceramics were packed into the mold of 6φ×20mm, compressed at the pressure of 500 MPa by the uniaxial or cold isostatic press(CIP).

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  • Elastomeric Chain (468) - OrthAzone

    Orthodontic Chain contains:• Orthodontic Elastics Chains • High strength & elasticity • 15 Feet Long• Long- Lasting• 34 Colors• 3 Types: Long, short and Closed

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  • Study of Surface Structure Changes for Selected Ceramics ...

    2019-6-12 · In the article has been presented an analysis of susceptibility of selected dental materials, made in the CAD/CAM technology. The morphology and structural properties of selected dental materials and their composites were determined by using XRPD (X-ray powder diffraction) techniques, as well as the IR (infrared) spectroscopy. Moreover, an adhesion as well as …

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  • List of Exhibitors 2021 - AEEDC Dubai 2021

    2014-10-1 · B&E KOREA is an innovative company that never stops inventing for R&D of dental materials. We have founded in Mar. 2013 with the motto of ‘providing innovative product for the Best & Excellent’ to be a No.1 company in dental industry. We are driving to support solution for locally developed dental materials with constant R&D investment.

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  • Final Exam Study Guide Dental Materials Flashcards | Quizlet

    Start studying Final Exam Study Guide Dental Materials. Learn vocabulary, terms, and more with flashcards, games, and other study tools. ... of the following is not a difference in t he functioning of a high-speed electrical handpiece and a high-speed air-turbine handpiece? ... Which of the following materials is an inorganic polymer? polysiloxane.

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  • Small Oligonucleotides Detection in Three-Dimensional ...

    The control of the three-dimensional (3D) polymer network structure is important for permselective materials when specific biomolecules detection is needed. Here we investigate conditions to obtain a tailored hydrogel network that combine both molecular filtering and molecular capture capabilities for biosensing applications. Along this line short oligonucleotide detection in a displacement ...

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  • Three-Dimensional Printable Nanoporous Polymer Matrix ...

    Three-Dimensional Printable Nanoporous Polymer Matrix Composites for Daytime Radiative Cooling ... Three-Dimensional Printable Nanoporous Polymer Matrix Composites for Daytime Radiative Cooling ... UV–vis, and part of the FTIR measurements were carried out in the Materials Research Laboratory Central Research Facilities, University of ...

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  • Three‑dimensional scaffolds for tissue engineering ...

    2020-6-1 · hree-dimensional (3D) scaffolds are commonly used for drug delivery,1,2 investigation of cell behavior and material studies in the field of tissue engineering.3–5 Three-dimensional scaffolds are typically porous, biocompatible and biodegradable materials that serve to provide suitable microenvironments, that is, mechanical support, physical,

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  • Three-dimensional selective growth of nanoparticles on a ...

    2010-7-24 · three-dimensional (3D) polymer microstructure. The technique integrates 3D direct writing of heterogeneous microstructures with nanoparticle synthesis. A digital micromirror device is employed as a dynamic mask in the digital projection photopolymerization process to build the heterogeneous microstructure layer by layer.

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  • Fabrication of three-dimensional polymer photonic crystal ...

    This letter describes an approach for recording three-dimensional (3D) periodic structures in a photosensitive polymer using a single diffraction element mask. The mask has a central opening surrounded by three diffraction gratings oriented 120° relative to one another such that the three first order diffracted beams and the nondiffracted laser beam give a 3D spatial light intensity …

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  • Polymer hollow fiber three-dimensional matrices with ...

    Polymer hollow fiber three-dimensional matrices with controllable cavity and shell thickness. Moroni L(1), Schotel R, Sohier J, de Wijn JR, van Blitterswijk CA. Author information: (1)Institute for BioMedical Technology (BMTI), University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands. [email protected]

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  • Publications | Pierre Fauchard Academy

    Many of the handpieces are noteworthy, such as Norlen's 'Dentalair,' conceived in 1948, Walsh's air turbine handpiece of 1949, Nelsen's water turbine handpiece (1952) and Page's belt-driven high-speed handpiece of 1955.41 It was in 1957, however, that a handpiece was introduced that revolutionized the practice of dentistry almost overnight.

    Get Price
  • The effect of three-dimensional morphology on the ...

    The effect of three-dimensional morphology on the efficiency of hybrid polymer solar cells. Oosterhout SD(1), Wienk MM, van Bavel SS, Thiedmann R, Koster LJ, Gilot J, Loos J, Schmidt V, Janssen RA. Author information: (1)Molecular Materials and Nanosystems, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands.

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  • Dental Materials - Final Flashcards | Quizlet

    网址: liweihg.polymer.cn 访问量:58301 相关链接 中国聚合物网 中国流变网 中国化学仪器网 化学化工论坛 联系方式 ... 关键字:Three-dimensional porous structure, Heterostructure, Plasmon, Graphene oxide, Hydrogen evolution

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