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  • Three-dimensional dental measurements: An

    Dental arch measurements, including mesiodistal widths of teeth, arch widths, arch lengths, arch perimeters, and palatal depths were made with the calipers. The patients were also scanned with computed tomography, and measurements were made digitally with a 3-dimensional-based dental measurements program (3DD, Biodent, Cairo, Egypt).

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  • Color and Translucency Stability of Three-Dimensional ...

    The purpose of this study was to examine and compare color and translucency stability of three-dimensional (3D) printable dental materials for crown and bridge restorations. Five different materials were investigated, and twelve disc-shaped specimens of two different thicknesses (1 and 2 mm) were prepared using a digital light processing 3D printer.

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  • Three-Dimensional Performance Analysis of a Radial

    2021-3-5 · radial inflow turbine, and compared the results of one-dimensional design and three-dimensional CFD simulation. At the same time, the performance of the turbine is verified by changing the inlet and outlet conditions of the radial turbine under design conditions. 2. Materials and Methods 2.1. Parameter Optimization of the Organic Rankine Cycle

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  • Three-dimensional accuracy of different impression ...

    2015-9-1 · The aim of this in vitro study was to compare the three-dimensional accuracy of open-tray and three closed-tray impression techniques. Materials and methods Three acrylic resin mandibular master models with four parallel implants were used: Biohorizons (BIO), Straumann tissue-level (STL), and Straumann bone-level (SBL).

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  • Three-Dimensional Conjugate Heat Transfer

    2009-2-4 · York, WD, & Leylek, JH. 'Three-Dimensional Conjugate Heat Transfer Simulation of an Internally-Cooled Gas Turbine Vane.' Proceedings of the ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference. Volume 5: Turbo Expo 2003, Parts A and B. Atlanta, Georgia, USA. June 16–19, 2003. pp. 351-360. ASME.

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  • Three-Dimensional Human Cell Cultures for

    For cell cultures in collagen, a four week - proliferation assay was performed (WST-1). After 14 days of three-dimensional culture in collagen, tHPC were introduced into the DBT with 200 μm dentin disks. After a 24-hour incubation under perfusion (0.3 ml/h), the following materials were applied according to the manufacturers’ instructions (1 ...

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  • making work easy 1 - Renfert

    2020-12-9 · Nanofibrous Tubular Three-Dimensional Platform for Single Dental Pulp Stem Cell ACS Applied Materials & Interfaces ( IF 8.758) Pub Date : 2020-11-30, DOI: 10.1021/acsami.0c17730 Bei Chang, Chi Ma, Xiaohua Liu

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  • Expansion of the peri-implant attached gingiva with a ...

    2020-2-19 · A dental technician’s work assumes a new dimension with the EASY view 3D: The ergonomic design enables a sustained natural and healthy posture. This enhances the users’ well-being and performance. The flexible boom arm can be adjusted to any work situation and object. The monitor has been especially developed for system compat-

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  • Three-dimensional assessment of dental casts'

    The aim of this study was to assess by means of a three-dimensional computed tomography scanning system the occlusal surface characteristics of dental casts made using two different impression materials. Alginate and polyvinyl siloxane impressions were taken of 20 dental students resulting in 40 den …

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  • Three-Dimensional Custom-Root Replicate Tooth

    2020-8-19 · This article summarizes the accomplishments and knowledge gained over the past 2 decades with respect to immediate dental root analogue implants (RAIs). It discusses how the artificial nature of the present dental implant materials and unnatural shapes cause complications, posing a …

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  • Three-Dimensional Inclination of the Dental Axes in ...

    2001-8-1 · The 3-dimensional arrangement of teeth in a normal, healthy human dentition follows some general rules. For instance, the occlusal surfaces of teeth in the mandibular arch have been described as tangent to a 100-mm (or 4-inch) sphere, which was first described by Monson about 80 years ago.1 This global spatial disposition, which also has recently been measured in different age groups,2,3 ...

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  • The potential of three-dimensional printing

    Three-dimensional (3D) printing technologies also offer a new and promising prospect of regenerating dental tissues. Conclusions: Considering the limitations to both conventional and subtractive computer-aided design/computer-aided manufacturing (CAD/CAM) methods, further research should focus on new, additive 3D-printing techniques.

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  • Performance of dental impression materials:

    Among other factors, the precision of dental impressions is an important and determining factor for the fit of dental restorations. The aim of this study was to examine the three-dimensional (3D) precision of gypsum dies made using a range of impression techniques and materials.

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  • Dental measurements based on a three-dimensional

    2021-4-1 · The purpose of this study was to assess the reliability and validity of dental measurements by comparing three-dimensional measurements of digital models derived from 3D handheld scanning of plaster models with electronic digital caliper measurement of the same plaster models, paving the way to the clinical use of this technology in dentistry. 2.

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  • Three-Dimensional Euler Simulations of Flow in

    In order to study the applicability of flow simulations by using the three-dimensional Euler code with pseudo-compressibility, flow simulations of a Francis runner with a high specific speed were carried out and results were compared with those of experiments on the pressure distributions on blade surfaces.

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  • Three-dimensional unsteady aerodynamics of a H

    2020-11-1 · The impact of the Reynolds number on the performance and on the 2D wake is also investigated. Finally the analysis of the three-dimensional performance of the turbine rotor is presented, alongside with the three-dimensional wake development and eventually of the tip vortex dynamics. 2. Turbine layout and basic computational flow model

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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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  • The potential of three-dimensional printing

    The potential of three-dimensional printing technologies to unlock the development of new 'bio-inspired' dental materials: an overview and research roadmap. Saratti CM(1), Rocca GT(2), Krejci I(2). Author information: (1)Division of Cariology and Endodontology, School of Dentistry, University of Geneva, Geneva, Switzerland.

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  • Three-Dimensional Analysis of Dental Casts Based on

    2003-9-1 · Recently, a more accurate quantification of dental cast information has become possible as a result of advances in the application of three-dimensional (3-D) measuring devices to dentistry.9 Motohashi and Kuroda10 simulated orthognathic surgery on digital images based on 3-D information from dental …

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  • Three-dimensional assessment of dental casts'

    2008-5-9 · The aim of this study was to assess by means of a three-dimensional computed tomography scanning system the occlusal surface characteristics of dental casts made using two different impression materials. Alginate and polyvinyl siloxane impressions were taken of 20 dental students resulting in 40 dental …

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  • Three-Dimensional Human Cell Cultures for

    2014-6-1 · Such a test method (dentin barrier test) has been included into the relevant standard for the preclinical evaluation of the biocompatibility of dental materials ISO-7405 . With this test method, three dimensional cell cultures were recommended for recording …

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  • Analysis of three-dimensional distortion of two

    Statement of problem: In dental implant restorations, a lack of passivity may be associated with mechanical failure. Passivity can be compromised during impression making. Purpose: The purpose of this study was to compare the distortion of mechanically mixed polyether and hydrophilic addition silicone impression materials, and to evaluate the effect of intercoping distance on distortion.

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  • Three Dimensional Dental Anatomy Software Program

    Teaching Oral Anatomy using Digital Interactive Dental Models. Tooth Explorer TM is a three dimensional dental software program designed to teach oral anatomy in a highly efficient digital environment. This program provides dentistry students with an interactive, three-dimensional dental library of …

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  • Three-dimensional analysis of the root canal

    2021-2-25 · The purpose of this study was to evaluate the changes in canal volume after root canal preparation in vivo with 3 different single-file techniques (Reciproc-Blue®, WaveOne-Gold® and XP-EndoShaper®), with a new method using CBCT and 3D reconstruction. In this prospective study, thirty human lower premolars from healthy patients were used, in which extraction was indicated for …

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  • (PDF) Dimensional Accuracy of Dental Models for

    2021-3-22 · Dimensional Accuracy of Dental Models for Three-Unit Prostheses Fabricated by V arious 3D Printing T echnologies Soo-Yeon Y oo 1 , Seong-Kyun Kim 1 , …

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  • Three-Dimensional Human Cell Cultures for

    Objectives: So far, bovine immortalized pulp cells have been used as three dimensional cultures for cytotoxicity testing of filling materials in the dentin barrier test (DBT). In this study, the use of human pulp-derived cells was evaluated, which would better simulate the clinical situation, and a composite material with a new resin base was ...

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  • Three Dimensional Heat Transfer Analysis of High

    2010-2-16 · The second part is a flow modeling in the turbine stage using flow parameters averaging on the stator-rotor interface (steady approach). Here we used sufficiently finer grid discretization to model all perforation holes on the stator vane and rotor blade, endwalls films in detail and to apply conjugate heat transfer approach for the rotor blade.

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  • Three-Dimensional Optimization of a Gas Turbine

    2012-5-22 · Analysis of the stress-Strain state of components of the lock joint of a compressor disk in a gas turbine engine in the three-dimensional elastic statement. Report 1. Strength of Materials, Vol. 24, No. 12. Analysis of turbine blades using a rapid three-dimensional photoelastic method.

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  • Three Dimensional Unsteady Pressure Measurements

    A complete set of unsteady blade surface pressure measurements is presented for a single turbine blade oscillating in a three dimensional bending mode. Results are provided for five spanwise sections at 10%, 30%, 50%, 70% and 90% of span.

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  • Nanofibrous Tubular Three-Dimensional Platform for

    2020-12-7 · Dental pulp stem cells (DPSCs) are the primary stem cell source for regenerative endodontics. DPSCs need to undergo a polarization process and retain the permanent polarization status to perform the function of odontoblasts. However, the factors that control DPSC polarization and its underlying mechanism remain unknown. In this study, we established a unique nanofibrous tubular three ...

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  • Three-dimensional X-ray tomography for multiscale ...

    Three-dimensional X-ray tomography for multiscale characterization and fatigue damage investigations of composites for wind turbine blades. Mikkelsen, Lars Pilgaard. 2018. Abstract from Civil Engineering Seminar Series (CESS), Lausanne, Switzerland.

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  • Three-dimensional flow field around and downstream

    Three-dimensional, three-component mean velocity fields have been measured around and downstream of a scale model vertical axis wind turbine (VAWT) operated at tip speed ratios (TSRs) of 1.25 and 2.5, in addition to a non-rotating case.

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  • Three-Dimensional Inverse Design of Low Specific Speed ...

    energies Article Three-Dimensional Inverse Design of Low Specific Speed Turbine for Energy Recovery in Cooling Tower System Wei Yang 1,* , Xiaoyu Lei 2 and Benqing Liu 1 1 Beijing Engineering ...

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  • (PDF) Three-Dimensional Performance Analysis of a

    2021-3-5 · Three-Dimensional Performance Analysis of a Radial–Inflow Turbine for Ocean Thermal Energy Conversion System March 2021 Journal of Marine Science and Engineering 9(3):287

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  • Three-Dimensional CFD Analysis of a Gas Turbine

    2009-8-3 · 'Three-Dimensional CFD Analysis of a Gas Turbine Combustor for Medium/Low Heating Value Syngas Fuel.' Proceedings of the ASME Turbo Expo 2008: Power for Land, Sea, and Air . Volume 4: Heat Transfer, Parts A and B .

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  • Accuracy of Dental Replica Models Using Photopolymer ...

    Accuracy of Dental Replica Models Using Photopolymer Materials in Additive Manufacturing: In Vitro Three-Dimensional Evaluation Su-Jin Jin,1 Dong-Yeon Kim, 2Ji-Hwan Kim, MPH, PhD,2 & Woong-Chul Kim, MPH, PhD 1Department of Public Health Science, Graduate School, Korea University, Seoul, Korea 2Department of Dental Laboratory Science and Engineering, College of Health Science, Korea …

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  • Free 3D Models - Download Free 3D Models 3DExport

    Download Free 3D Models. Some of these 3d models are ready for games and 3d printing. Available formats: c4d, max, obj, fbx, ma, blend, 3ds, 3dm, stl - 3DExport.com

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  • (PDF) Three-Dimensional Human Cell Cultures for ...

    Objectives: So far, bovine immortalized pulp cells have been used as three dimensional cultures for cytotoxicity testing of filling materials in the dentin barrier test (DBT).

    Get Price
  • Color and Translucency Stability of Three-Dimensional ...

    2021-1-31 · Color and Translucency Stability of Three-Dimensional Printable Dental Materials for Crown and Bridge Restorations. Jong-Eun Kim. Department of Prosthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-ro Seodaemun-gu, Seoul 03722, Korea. Author profile.

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  • Three-Dimensional Biomodels: Use of Different

    2015-2-6 · The complex three-dimensional flow in the wicket gate and the runner of a Francis turbine is investigated by applying both a quasi-three-dimensional and a three-dimensional computational method. The computations were conducted on a double grid containing the …

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  • Quasi-Three-Dimensional and Three-Dimensional

    2014-12-24 · Hale, A, & O’Brien, W. 'A Three-Dimensional Turbine Engine Analysis Compressor Code (TEACC) for Steady-State Inlet Distortion.' Proceedings of the ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition.

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  • A Three-Dimensional Turbine Engine Analysis

    T1 - Three dimensional fatigue damage evolution in non-crimp glass fibre fabric based composites used for wind turbine blades. AU - Jespersen, Kristine Munk. AU - Mikkelsen, Lars Pilgaard. PY - 2017. Y1 - …

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  • Three dimensional fatigue damage evolution in non

    2009-8-3 · Three-Dimensional Modeling of Creep Damage in Airfoils for Advanced Turbine Systems Ventzislav G. Karaivanov, ... VG, Mazzotta, DW, Chyu, MK, Slaughter, WS, & Alvin, MA. 'Three-Dimensional Modeling of Creep Damage in Airfoils for Advanced Turbine Systems.' Proceedings of the ASME Turbo Expo 2008: Power for Land, ...

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  • Three-Dimensional Modeling of Creep Damage in

    The model includes three-dimensional wind and wave loads and the associated structural response. The total system is formulated using 17 degrees of freedom (DOF), 6 for the platform motions and 11 for the wind turbine. Three-dimensional hydrodynamic loads have been formulated using a frequency- and direction-dependent spectrum.

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  • Fully Coupled Three-Dimensional Dynamic Response

    Further, the water soluble ceramic material may be used for the three-dimensional printing of the core 120 and the like so as to avoid the use of hazardous chemicals generally required for leaching. Any suitable ceramic material may be used for three-dimensional printing of the core 120 and/or the combined mold and core 130. The binder jetting ...

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  • Three-dimensional manufacturing methods and

    Download Free 3D Models. Some of these 3d models are ready for games and 3d printing. Available formats: c4d, max, obj, fbx, ma, blend, 3ds, 3dm, stl - 3DExport.com

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