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  • High and low torque handpieces: cutting dynamics,

    Objective: The aim of these experiments was to compare the cutting dynamics of high-speed high-torque (speed-increasing) and high-speed low-torque (air-turbine) handpieces and evaluate the effect of handpiece torque and bur type on sub-surface enamel cracking. Temperature changes were also recorded in teeth during cavity preparation with high and low torque handpieces with diamond and …

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  • Elastic modulus and stress–strain response of human

    Nano-indentation with a sharp (Berkovich) and two spherical indenters with nominal tip radii of 5 and 20 μm was used to determine the elastic modulus and stress–strain response of human enamel.Indentation tests were made over a wide range of peak loads from 1 to 450 mN in two orthogonal directions, i.e., parallel and perpendicular to enamel prisms.

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  • Machinability of high-speed enamel cutting with

    2020-3-1 · Enamel has a unique microstructure that may have a significant impact on cutting mechanics. Human enamel consists of 5–6 μm diameter rods surrounded by 1 μm width of thin protein-rich sheaths (Habelitz et al., 2002). At the nano-scale material cutting thickness, enamel cutting requires further consideration of the inner nano-scale small rods (apatite crystals) and sheath structures of enamel rod and enamel …

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  • Clinical Investigation of Nano-hybrid Resin Composite ...

    2016-3-12 · SDR flowable RBC as a liner under class II nano hybrid resin composite restorations. Patients and methods In this study two flowable lining materials, SureFil SDR and Filtek Z350 XT Flow were used. The restorative system used was the two steps etch and rinse Prime & Bond NT adhesive system with a nano hybrid Esthet.x HD resin dental composite.

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

    2016-1-1 · Furthermore, animal studies have exhibited that nano-TiO 2 /PEEK implants have a higher bioactivity compared to pure PEEK , . Dental hard tissues are anisotropic in nature and their mechanical properties vary from one point to the other with in the same tissue , . The PEEK nano-composites can enable researchers to synthesize biomaterials with variable combinations of mechanical properties …

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  • High and low torque handpieces: cutting dynamics,

    2000-6-24 · Imaging of high speed cutting interactions between dental burs and enamel microstructure has become possible with the advent of video rate confocal …

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  • Chemical vapor deposition diamond dental burs for

    Step 2: Perform validation studies for the adherence and durability of the diamond film. 2.1. Step 1: CVD of Diamond film on dental burs. Uncoated tungsten carbide burs with six to eight mass percent cobalt and grain size of 1–1.2 μm were used.

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  • A laser-abrasive method for the cutting of enamel and

    A laser-abrasive method for the cutting of enamel and dentin. Altshuler GB (1), Belikov AV, Sinelnik YA. (1)Institute of Fine Mechanics and Optics, Department of Quantum Electronics and Bio-Medical Optics, 14 Sablinskaya st., Saint Petersburg, 197101, Russia. BACKGROUND AND OBJECTIVE: This paper introduced a new method for the removal of hard ...

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  • Quantitative assessment of the enamel machinability

    2015-1-1 · Efforts have been made to develop intelligent haptic virtual reality simulators for dental tooth-cutting training (Liu et al., 2008, Xia et al., 2013, Yoshida et al., 2011). This requires the quantitative information and the scientific understanding of the enamel machinability using dental …

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  • Dental air turbine handpiece performance testing* -

    Air turbine handpieces are expected to continue to be widely used as the main means of carrying out dental cutting work and scope exists for further design improvements. An understanding of the theoretical principles governing the performance of these devices seems essential for the systematic development of better handpiece designs and methods ...

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  • High and low torque handpieces: cutting dynamics,

    Objective: The aim of these experiments was to compare the cutting dynamics of high-speed high-torque (speed-increasing) and high-speed low-torque (air-turbine) handpieces and evaluate the effect of handpiece torque and bur type on sub-surface enamel cracking. Temperature changes were also recorded in teeth during cavity preparation with high and low torque handpieces with diamond and …

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  • Research Article Enamel and Dentin Surface Finishing ...

    2019-7-31 · a glass-ceramic luted to enamel and dentin surfaces nished with medium and ne-grit diamond burs and tips mounted on a high-speed turbinehandpiece and ultrasonicdevice. 2. Materials and Methods irty-ve bovine incisors were selected and stored in chlo-ramine T .% at Cuntiluse.e crownswereseparated from the roots at the enamel-cemental junction ...

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  • Scientists create new class of Nano Material

    On the smallest scale, the structure of the new material resembles that of biological hard tissues, such as mother of pearl and dental enamel. It consists of uniformly sized iron oxide nanoparticles, which are coated with oleic acid. In previous studies, the bonds between the oleic acid molecules were very weak.

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  • A laser-abrasive method for the cutting of enamel and

    A laser-abrasive method for the cutting of enamel and dentin. Altshuler GB (1), Belikov AV, Sinelnik YA. (1)Institute of Fine Mechanics and Optics, Department of Quantum Electronics and Bio-Medical Optics, 14 Sablinskaya st., Saint Petersburg, 197101, Russia. BACKGROUND AND OBJECTIVE: This paper introduced a new method for the removal of hard ...

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  • Machinability of enamel under grinding process using ...

    2019-11-3 · Enamel grinding is a critical dental surgery process. However, tooth damage during the process remains a significant problem. Grinding forces, burr wear, and surface quality were characterised in relation to grinding speed, enamel orientation, grinding depth, and burr grit grain size.

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  • European Dental Turbine Market (2020 to 2026) - by

    2021-1-15 · The Europe Dental Turbine Market is expected to witness market growth of 24% CAGR during the forecast period (2020-2026). A dental turbine is …

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  • European Dental Turbine Market (2020 to 2026) - by

    2021-1-15 · Dublin, Jan. 15, 2021 (GLOBE NEWSWIRE) -- The 'Europe Dental Turbine Market By Speed (High and Low), By End Use (Dental Office and Hospital), By Country, Industry Analysis and Forecast, 2020 - 2026' report has been added to ResearchAndMarkets.com's offering. The Europe Dental Turbine Market is expected to witness market growth of 24% CAGR during the forecast period (2020-2026). A dental ...

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  • Your Dental Implant Surgery - Nayabook

    2021-6-3 · If you have got a missing or broken teeth and are considering a dental implant, you may have a selection of questions about getting prepared for your surgery, the surgical treatment itself and what occurs in some time. We’ll lay all that out, so you’ll experience an …

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  • European Dental Turbine Market (2020 to 2026) - by

    2021-1-15 · Dublin, Jan. 15, 2021 (GLOBE NEWSWIRE) -- The 'Europe Dental Turbine Market By Speed (High and Low), By End Use (Dental Office and Hospital), By Country, Industry Analysis and Forecast, 2020 ...

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  • Flowable Bulk-Fill Materials Compared to Nano

    2019-9-25 · Cavities were prepared with turbine burs (NTI-Kahla GmbH Rotary Dental Instruments, Kahla, Germany) under water-cooling. The selective etching of enamel with 37% phosphoric acid and application of the bonding agent Prime and bond NT (Dentsply) was conducted after the disinfection of prepared cavities with 1% chlorhexidine.

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  • The Effect of Different Light Sources on Microleakage of ...

    Dental Materials Journal 2008; 27(4): 598-604 Original Paper The Effect of Different Light Sources on Microleakage of Bleached Enamel Bilinç BULUCU 1, Ebru ÖZSEZER2, Ertan ERTAŞ and Gözde YÜKSEL1 1Department of Operative Dentistry, Ondokuz Mayıs University, Faculty of Dentistry, Samsun, Turkey 2Department of Endodontics, Ondokuz Mayıs University, Faculty of Dentistry, Samsun, Turkey

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  • Intracoronal stress transfer through enamel following

    2019-3-27 · enamel prisms have distinct orientations that are a function of their location [53-55]. As a bulk material, enamel is anisotropic with respect to its elastic modulus [56], exhibits a high fracture toughness [57] and has been shown to exhibit time dependent deformation as a response to applied stress. Using nano-

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  • Microleakage of Different Self-adhering Materials

    2017-10-11 · 1. Up to 1/3 of cavity depth from enamel junction 2. 1/3-2/3 of cavity depth 3. >2/3 of cavity depth but not involving the axial wall 4. Up to the axial wall. Each section was then observed with a stereomicroscope (SZ-PT, Olympus, Japan) with magnification of 30×. Maximum dye penetration was selected for grading the microleakage. The amount of

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  • Polymerization Shrinkage Stress in Resin-Based Dental ...

    Many developments have been made in the field of resin composites for dental applications. However, the manifestation of shrinkage due to the polymerization process continues to be a major problem.

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  • About Giomer – Shofu USA

    The nano-hybrid-sized particles provide the high level of polishability dentists have come to expect in today’s premium restorative materials. Our unique filler structure gives GIOMER restoratives the light transmission and diffusion properties of both dentin and enamel to blend well with surrounding dentition without the need for complex ...

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  • (PDF) Titanium Compound Erosion-Resistant Nano

    PDF | The main objective of this paper is to offer ion-plasma technology for production of Ti (titanium) and titanium nitride (TiN) erosion-resistant... | Find, read and cite all the research you ...

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  • (PDF) In vivo remineralization of dentin using an

    Dental pulp is critical to maintain the vitality of a tooth. Regeneration of pulpo-dentinal complex is of great interest to treat pulpitis and pulp necrosis. In this study, through three-dimensional spheroid culture, a group of unique multipotent stem cells were identified from mouse dental papilla called multipotent dental pulp regenerative stem cells (MDPSCs).

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  • Regeneration of pulpo-dentinal–like complex by a

    These Alegra handpieces connect seamlessly to nonlighted 4-hole tubing. 2014 W&H develops the smallest electric motor available, the EA-53, which seamlessly integrates into A-dec delivery systems with controls integrated into the touchpad. Up to two motors can run off one controller.

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  • High-speed air turbine - British Dental Association

    2021-7-3 · High-speed air turbine. Prior to its development in the late 1950s drills had been driven by electricity. With the air turbine the burr is turned by air pressure and can reach speeds of up to 500,000 revolutions per minute. This speed generates a lot of heat which can cause irreparable damage to the pulp so the drill is always fitted with a ...

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  • Clinical Investigation of Nano-hybrid Resin Composite ...

    2016-3-12 · SDR flowable RBC as a liner under class II nano hybrid resin composite restorations. Patients and methods In this study two flowable lining materials, SureFil SDR and Filtek Z350 XT Flow were used. The restorative system used was the two steps etch and rinse Prime & Bond NT adhesive system with a nano hybrid Esthet.x HD resin dental composite.

    Get Price
  • COMPUTATIONAL APPROACH TO DESIGN THE HIGH

    2017-4-4 · Computational Approach to Design The High-Speed Dental Air-Turbine Handpiece Proceedings of Researchfora 2nd International Conference, Putrajaya, Malaysia, 4th-5th March 2017, ISBN: 978-93-86291-88-2 51 a) b) Table 3 presents the grid validation results by the grid c) Figure 1. The dental handpiece a) parts, b) inner parts and c)

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  • Microleakage of Different Self-adhering Materials

    2017-10-11 · 1. Up to 1/3 of cavity depth from enamel junction 2. 1/3-2/3 of cavity depth 3. >2/3 of cavity depth but not involving the axial wall 4. Up to the axial wall. Each section was then observed with a stereomicroscope (SZ-PT, Olympus, Japan) with magnification of 30×. Maximum dye penetration was selected for grading the microleakage. The amount of

    Get Price
  • The Effect of Different Light Sources on Microleakage of ...

    Dental Materials Journal 2008; 27(4): 598-604 Original Paper The Effect of Different Light Sources on Microleakage of Bleached Enamel Bilinç BULUCU 1, Ebru ÖZSEZER2, Ertan ERTAŞ and Gözde YÜKSEL1 1Department of Operative Dentistry, Ondokuz Mayıs University, Faculty of Dentistry, Samsun, Turkey 2Department of Endodontics, Ondokuz Mayıs University, Faculty of Dentistry, Samsun, Turkey

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  • CAD CAM - Understanding the Basics: A Review

    SIGN IN | SIGN UP. All Category. Stock in Australia. Dental Handpiece. Slow Speed Handpiece. High Speed Handpiece. Push Button Handpiece. Contra Angle Handpiece. ... Dental Air Compressor. 1 Drive 1. 1 Drive 2. 1 Drive 3. 1 Drive 4. With Dryer and Silent Cabinet. Dental Light. Oral Lamp. Shadowless Light. Dental Surgical Light.

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  • COXO 4:1 Dental Orthodontic IPR Strips Interproximal ...

    These Alegra handpieces connect seamlessly to nonlighted 4-hole tubing. 2014 W&H develops the smallest electric motor available, the EA-53, which seamlessly integrates into A-dec delivery systems with controls integrated into the touchpad. Up to two motors can run off one controller.

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  • HANDPIECE COLLECTION - A-dec - PDF Catalogs |

    2016-5-8 · 29th May, 2012. Alven Arreaza. Central University of Venezuela. Are cracks in the surface of the tooth due to defects in the enamel development. It can be present in any site of the crown even in ...

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  • Bad coalescence areas of dental enamel - ResearchGate

    Dental pulp is critical to maintain the vitality of a tooth. Regeneration of pulpo-dentinal complex is of great interest to treat pulpitis and pulp necrosis. In this study, through three-dimensional spheroid culture, a group of unique multipotent stem cells were identified from mouse dental papilla called multipotent dental pulp regenerative stem cells (MDPSCs).

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  • What can cause dental turbine failure? | Solution for

    2019-6-7 · One of the most common mistakes in regard to dental turbines is the use of inadequate lathes that have a diameter smaller than or greater than the standard diameter (1.59 mm). Unfortunately in the market there are many finer or softer lathes, which come from low cost manufacturers and are attractive thanks to its low price.

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  • A new dimension to conservative dentistry: Air

    Studies have shown that the bonding of enamel and dentin surfaces prepared with air abrasion is much better than that with conventional carbide burs or acid etching;,, with the introduction of flowable and nano-filled composites it is easier to restore cavities which do not confer with the specifications of GV Black's concepts. Another major ...

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  • A practice manager’s guide to dental handpieces ...

    2018-8-22 · Dental handpiece types – air turbine versus electrical. There are two systems for powering handpieces: air turbine and electrical. Air driven handpieces contain an air-driven spinning turbine to generate rotation, and are powered by compressed air. They can reach speeds of up to 400,000 rpm with a variable torque.

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  • Repairing human tooth enamel with leucine-rich

    2021-5-21 · et al. have developed a dental paste that upon application on the enamel surface, under acidic pH, resulted in the formation oforganized nanocrystalsofapatite.12 However, the native enamel structure is a highly complex tissue that is extremely difficult to recapitulate within a relatively short period of time. Recently, we developed an amelo-

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  • The Dental Handpiece: Technology Continues to

    One of the most fundamental devices used in dentistry, the handpiece can enhance the efficiency of everyday dental tasks. Through the years, handpieces have gradually been redesigned and upgraded to become the highly accurate and sophisticated tools they are today. Technological advances continue to improve these indispensable instruments.

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  • Comparison of the Shear Bond Strength of Resin

    2013-3-31 · Different parameters and methodologies have guided to controversial results about the effect of Er:YAG laser on the shear bond strength of dental materials to enamel. Souza-Gabriel et al. in assessing the shear bond strength of resin-modified glass-ionomer to Er:YAG laser treated surfaces concluded that conventional bur-prepared samples ...

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  • Effect of Phosphoric Acid Etching of Enamel Margins

    2009-9-1 · To activate an ideal etching pattern in intact enamel and the dissolution of its surface, it may be useful to etch the enamel margin with an acidic solution before using self-etching adhesives.16 Several studies have shown that self-etching adhesives could seal enamel margins effectively.17–18 Some studies reported that self-etching primer ...

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  • Dental - Shop Home Decor

    Dental. Searching for Pottery Barn at awesome prices? Searching for Dental or comparable listings? We showcase a wide assortment of Dental, in addition to items such as Pottery Barn, Crate Barrel, Pier One, Bombay, plus lots more.Browse our enormouse selection of Pottery Barn, or try doing a search for a particular Dental with the site search. This site has access to thousands of listings from ...

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  • 15 New Dental Instruments, Tools & Materials for

    2020-11-10 · The dental industry has seen innovations too, with new dental instruments & tools paving the way for superior patient care as well as adding comfort to professional practice. New and improved methods of treatment mean that the health and medicine industries are able to save more lives and offer improved standards of living, irrespective of ...

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  • My Account | Stevenson Dental Solutions

    Must Have! 330RGS Bur; RGS 1-2; RGS 3-4; Jiffy Cup; Tooth Damage Repair Kit; Tooth Damage Prevention Kit; Diamond Bur Cleaning Stone; Typodont Prep Teeth Cleansers

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