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  • Comparison of Three-Dimensional Accuracy of Digital

    Purpose: This study compared the three-dimensional (3D) accuracy of conventional impressions with digital impression systems (intraoral scanners and dental laboratory scanners) for two different interimplant distances in maxillary edentulous arches.

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  • Cytocompatibility of 3D printed dental materials for ...

    Background: Three-dimensional (3D) printing is widely used in the fabrication of dental prostheses; however, the influence of dental materials used for 3D printing on temporary restoration of fibroblasts in tissues is unclear. Thus, the influence of different dental materials on fibroblasts were investigated. Methods: Digital light processing (DLP) type 3D printing was used.

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  • Three-dimensional printing technologies in the

    A magnet-retained auricular prosthesis was planned for the patient. Three-dimensional scanning was performed on the healthy side by using a three-dimensional optical scanner and the data were mirrored. The mirrored image was then imported to a software and a virtual model of the future prosthesis was obtained for the defect side.

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  • VIRTUAL THREE- DIMENSIONAL ANALYSIS OF DIGITIZED

    2019-9-29 · “A three-dimensional evaluation of a laser scanner and a touch-probe scanner”. Journal of Prosthetic Dentistry (2006) 95:194-200. II. Anna S.K. Persson, Matts Andersson, Agneta Odén, Gunilla Sandborgh-Englund, ”Computer aided analysis of digitized dental stone replicas by dental CAD/CAM technology”. Dental Materials (2008) Aug;24(8 ...

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  • Three‐dimensional printing biotechnology for the ...

    2018-11-26 · Three‐dimensional printing biotechnology for the regeneration of the tooth and tooth‐supporting tissues Yue Ma State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, People's Republic of China

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  • AMT - Three-dimensional structure of wind turbine

    Three-dimensional structure of wind turbine wakes as measured by scanning lidar. Abstract. The lower wind speeds and increased turbulence that are characteristic of turbine wakes have considerable consequences on large wind farms: turbines located downwind generate less power and experience increased turbulent loads.

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  • Dentist Equipment & Dental Practice Equipment |

    2021-6-27 · Made for your hand: Each KaVo dental turbine is the result of extensive ergonomic and anatomical studies with consistent dimensions, angles and contours for balanced handling. You can choose from the wide range of KaVo's top class dental turbines. KaVo dental turbines - The perfect interplay of hand and tool.

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  • The potential of three-dimensional printing

    2019-4-1 · Additive manufacturing (AM), or three-dimensional (3D)-printing, is a process that enables the creation of three-dimensional objects from digital data using the layer-by-layer deposition of material . This method is already more than 30 years old . The first working device, the stereolithography apparatus, was developed in 1984 by Hull, C. W.

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  • A laboratory study of dimensional changes for three ...

    2021-5-1 · Three-dimensional cultures offer several advantages, mainly due to the improved cell-to-cell interaction provided by the extracellular matrix (ECM), which supports cells and delivers nutrients, providing a structure that better resemble the in vivo condition.

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  • Wind Turbine Manufacturing Transforms with Three ...

    2016-9-1 · Three-dimensional reconstruction for thick carious lesions. Specimens used in this study were soft pulp tissues connected with hard dentin tissues (Fig. 1a). 2D images with an overlay of the differential interference contrast (DIC) channel image of a healthy control tooth were displayed scant expression of GFAP and S100B (Fig. 1b).For comparison, a matched set of 2D images from a carious tooth ...

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  • Three/four-dimensional (3D/4D) microscopic imaging

    2021-4-7 · Three-dimensional positional accuracy of intraoral and laboratory implant scan bodies. ... polymers, or a combination of materials. Polyetheretherketone (PEEK) is a semicrystalline structure with properties that vary depending on the manufacturing temperature. ... These include the accuracy of intraoral and dental laboratory scanning systems ...

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  • Three-dimensional positional accuracy of intraoral and ...

    2018-3-6 · Accuracy of three-dimensional dental resin models created by fused deposition modeling, stereolithography, and Polyjet prototype technologies: A comparative study ... printing technologies. From these available printers, digital files can be printed using ceramic, metal, wax, and resin materials utilizing highly unique processes depending on ...

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  • Accuracy of three-dimensional dental resin models

    2020-8-6 · Gas Turbine Laboratory Department of Aeronautics and Astronautics Massachusetts Institute of Technology Cambridge, MA 02139-4307 A Final Technical Report for research supported under NASA Grant #NAG3-2051 entitled THREE-DIMENSIONAL AERODYNAMIC INSTABILITIES IN MULTI-STAGE AXIAL COMPRESSORS submitted to Attn: NASA Glenn Research Center 21000 ...

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  • Gas Turbine Laboratory Department of Aeronautics and ...

    2021-4-22 · Finite element software abaqus and the user-defined element (UEL) subroutine are used to build three-dimensional rough surface elastoplastic contact models. By calculating the grinding rough surface contact in the macro-scale constitutive model based on J 2 theory and in the CMSG plasticity constitutive model, the influence law of plastic micro ...

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  • Three-Dimensional Elastoplastic Contact Analysis of

    2016-6-9 · The first laboratory microCT instruments, which were introduced in the early 1980s (Elliott et al., 1981; Elliott and Dover, 1982) and could achieve a spatial resolution of ∼10 µm, were typically used to image inorganic materials and the internal structures of fossils and calcified bones (Müller et al., 1994; Hildebrand and Rüegsegger ...

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  • Three-dimensional visualisation of soft biological ...

    Three-Dimensional Numerical Simulation of Energy Transfer Efficiency and Rock Damage in Percussive Drilling With Multiple-Button Bit ... State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249 ... Percussive drilling is suitable for the fragmentation of rocks and other similar materials with ...

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  • Three-Dimensional Numerical Simulation of Energy

    2020-6-23 · Three-dimensional reconstruction of these pores showed that they formed channels (Fig. 1J) predominantly along the longitudinal direction of collagen fibril bundles. Whether these pores are filled with fluid or may contain organic material such as glycosaminoglycans and/or cell processes is difficult to determine with current FIB-SEM analysis.

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  • Three-dimensional structural interrelations between

    2020-10-9 · Dynamic Analysis of Low-Pressure Steam Turbine Last Stage Fir-Tree Root Blade Rajesh K. Bhamu, Rajesh K. Bhamu Vibration and Noise Control Laboratory, Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee 247667, Uttarakhand, India. Email: [email protected] ... both healthy and defective blade have been taken. Since ...

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  • Applications for Three-Dimensional Printing in

    2016-7-1 · Three-dimensional (3D) printing creates a product via an additive production method, as opposed to milling, which is a subtractive process. This technology has indications for various dental uses, including orthognathic surgeries, oral and maxillofacial procedures, the fabrication of implant surgical guides, and prosthetic design and production.

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  • Three-dimensional numerical analysis on blade

    2014-8-15 · Three-dimensional numerical analysis on blade response of a vertical-axis tidal current turbine under operational conditions ... The optimization of a three-blade vertical-axis turbine design using the hybrid method yielded a turbine H/R ratio of about 3.0 for reliable maximum power output. ... Structural Dynamics, and Materials Conference and ...

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  • making work easy 1 - Renfert

    2020-2-19 · dental practice, patients and specialists 4 Creation of photos and video sequences Optimum assessment of object structures in 3D mode The EASY view 3D’s three-dimensional mode enables easy hand-eye coordination and a natural working position. Its three-dimensional spatial representation is perfect for critically examining work objects.

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  • Dental Biomaterials | ScienceDirect

    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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  • Three-Dimensional Biomimetic Mineralization of

    2019-12-12 · An electric-current-assisted method was used to mineralize dense hydrogels and create hydroxyapatite/hydrogel composites with unique hierarchical structures. The microstructure of the final material can be controlled by the mineralization technique and the chemistry of the organic matrix. A hydroxyapatite/hydrogel composite was obtained with a large inorganic content (∼60% of the weight of ...

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  • Three-Dimensional Separations in Axial Compressors |

    2005-5-5 · The separations are three dimensional and have quite different properties from the two-dimensional separations that are considered in elementary courses of fluid mechanics. In particular, the consequences for the flow may be less severe than the two-dimensional separation. This paper describes the nature of three-dimensional (3D) separation and ...

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  • Three‐dimensional printing technologies for terahertz ...

    In some cases, technicians use computer programs or three-dimensional printers to create appliances or to get impressions sent from a dentist's office. Dental laboratory technicians can specialize in one or more of the following: orthodontic appliances, crowns and bridges, complete dentures, partial dentures, implants, or ceramics.

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  • Dental and Ophthalmic Laboratory Technicians and

    2015-3-18 · The extension of a well established three dimensional flow calculation method to calculate the flow through multiple turbomachinery blade rows is described in this paper. To avoid calculating the unsteady flow, which is inherent in any machine containing both rotating and stationary blade rows, a mixing process is modelled at a calculating ...

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  • The Calculation of Three Dimensional Viscous Flow

    Dental agar materials have to be heated to temperatures approaching 100 °C for melting (in a convenient time) but, in view of the fact that they will be placed in contact with living tissue a certain amount of pre-cooling – so-called tempering – is required before use. This may be to around 50 °C, so that by the time the tray has been loaded, sufficient further cooling will have occurred ...

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  • Ivoclar Digital - Removable Prosthetics

    The unique Shell Geometry is located within the Ivotion disc. The Shell Geometry is a data-based, three-dimensional tooth and dental arch structure which is designed for fabricating maxillary and mandibular dentures. This innovative technology allows you to mill customized complete dentures in one operation.

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  • Dental Laboratory - KaVo Dental Lab Equipment | KaVo

    2021-6-28 · Dental laboratory equipment by KaVo. For you to be able to be working professionally you will need the best Dental laboratory equipment. The KaVo dental laboratory systems are economical for working efficiently in the long term. If you are planning a renovation, extension or new dental laboratory, KaVo's experienced planning team will be happy to advise you.

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  • making work easy 1 - Renfert

    2020-2-19 · dental practice, patients and specialists 4 Creation of photos and video sequences Optimum assessment of object structures in 3D mode The EASY view 3D’s three-dimensional mode enables easy hand-eye coordination and a natural working position. Its three-dimensional spatial representation is perfect for critically examining work objects.

    Get Price
  • Effects of a three-dimensional hill on the wake ...

    2014-8-1 · In our previous study, a torsional model was used to perform a dynamic analysis of a wind turbine drivetrain. However, detailed characteristics could not be obtained with this torsional model. In this paper, the mathematical model of the wind turbine drivetrain is extended to a three-dimensional dynamic model. A typical arrangement with one low-speed planetary gear stage and two highspeed spur ...

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  • ProJet MJP Wax Investment Casting Patterns Let

    Three-dimensional (3D) printing is a digital rapid prototyping technology based on a discrete and heap-forming princi-ple. We identified 53 articles from PubMed by searching “Hip” and “Printing, Three-Dimensional”; 52 of the articles were published from 2015 onwards and were, therefore, initially considered and discussed.

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  • Dynamic analysis of three-dimensional drivetrain

    2020-8-13 · Details on Activities for the Wind Turbine Project. Turbine Project Lab 1 – Learning How to Design with Solid Modeling Software. In this laboratory period, you will get some training in three dimensional computer-aided design using SolidWorks, a leading-edge solid modeling software.

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  • Bone grafts: which is the ideal biomaterial?

    5Biomaterials Laboratory, Institute for Mechanical Engineering and Materials ... healthy expansion of the European dental implant market, par - ... healthy three-dimensional tissue formation is essential (Huiskes, Ruimerman, van Lenthe, & Janssen, 2000). Attempts to define the

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  • Research - Research - UTHealth School of Dentistry

    Dr. Farach-Carson’s laboratory uses three dimensional models to study the behavior of both cancer cells and normal cells.The Farach-Carson laboratory uses our understanding of extracellular matrix to create “smart” biomaterials that can mimic the native tissue to provide an environment in which to study cell and tissue behavior under physiologically relevant conditions.

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  • QuietNite | Oral Arts Dental Laboratories - Huntsville, AL

    The QuietNite, a mandibular re-positioning and advancement device is intended for the treatment of snoring and mild to moderate obstructive sleep apnea in persons 18 years of age or older. The QuietNite consists of two separate thermal forming trays, which fit over the upper and lower arches.

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  • Christian Coachman, Eric Van Dooren, Galip Gürel,

    2015-2-7 · They are two-dimensional (2D) or three-dimensional (3D) representations of the final outcome, and once developed, they will guide the processes of drawing, modeling, and building. Similarly, in dentistry, all of the patient’s ... time and materials are saved, and the costs of ... Dental laboratory and smile designer: Christian Coachman, DDS, CDt

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  • Additive Manufacturing - Roland Berger

    2021-6-28 · Using additive manufacturing technology, three-dimensional solid objects of virtually any shape can be made from a digital model Definition > Additive manufacturing (AM) is a process of making a three-dimensional solid object of virtually any shape from a digital model > AM uses an additive process, where materials are applied in successive layers

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  • Smart Materials: what they are, examples and

    2020-5-7 · Human evolution is linked to the manipulation of the environment. Since the first hominid to use a stone as a tool — or a bone according to the iconic scene from 2001: A Space Odyssey —, we have come to recognise this as materials science. This discipline uses physics, chemistry and engineering to study how materials are formed and what their physical properties are, as well as to …

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  • A review of damage detection methods for wind

    2012-2-29 · A static-electricity generator flashed lightning bolts, and a three-dimensional model of the human heart loomed over Cohn’s desk. Even his file cabinet looked weird, pimpled with tiny bits of metal.

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  • No Pulse: How Doctors Reinvented The Human Heart

    The instrumentation necessary for the execution are as follows: a carpule syringe, anaesthetic, a needle, 2 specimen tweezers, a dental dam sheet, a dental dam frame, clamp holder, rubber dam punch, tooth clamps, medium and fine grain diamond burs [], tungsten carbide multiblade round burs rosettes, rubbers for polishing, adhesive systems, a photo-polymerising lamp, composite materials for ...

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  • Sterilisation in Dentistry: A Review of the Literature

    He established his Laboratory, one of Israel’s leading Dental Laboratories, 27 years ago. The Laboratory focuses on developing the most cutting edge in Digital Technology, working with state-of-the-art equipment and employing the highest quality staff, in order to meet the challenging technical demands required by his clients nationwide.

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