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  • Access Cavity and Endodontic Anatomy - EndoExperience

    2010-8-4 · quent work. This preliminary step is the preparation of the access cavity, the opening in the dental crown that permits localization, cleaning, shaping, disinfection, and three-dimensional obturation of the root canal system. The success of the endodontic treatment depends en-tirely on precise, proper execution of this step. An

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  • Cavity Preparations | University of Toronto Faculty of ...

    2001-10-31 · The access preparation is an essential element for successful endodontics.1 Preparing the endodontic access cavity is a critical step in a series of procedures that potentially leads to the three-dimensional obturation of the root canal system. Access cavities should be cut so the pulpal roof, including all overlying dentin, is removed.

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  • ENDODONTICS: NiTi Rotary Instruments Concepts for ...

    2008-3-7 · access cavity. II. Cross-sectional diameter should be narrower at every point apically. III. The root canal preparation should flow with the shape of the original canal. IV. The apical foramen should remain in its original position. V. The apical opening should be kept as small as practical. And four biologic objectives:

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  • Mechanical preparation of root canals: shaping goals ...

    Cavitation (decay not reached pulp): Remove the decay (e.g., with dental drill or excavators) and fill with glass ionomer, composite, or amalgam filling. If these are not available, apply silver diamine fluoride solution to cavity for 1 minute. • Cavitation with pulpal involvement: Tooth extraction under local anesthesia. When resources are available, the tooth may be saved with root canal treatment.

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  • Dental Drill - an overview | ScienceDirect Topics

    2016-5-3 · Dentin matrix protein-1 (DMP-1) is one of the dentin noncollagenous phosphorylated extracellular matrix proteins (SIBLINGs) involved in the regulation of mineralization. DMP-1 induces the cytodifferentiation of dental pulp stem cells, becoming odontoblast-like cells (Lourenço Neto et al. 2015; Almushayt et al. 2006).

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  • Reactionary and reparative dentin formation after

    Apparatus incorporating a movable dispensing head provided with a supply of material which solidifies at a predetermined temperature, and a base member, which are moved relative to each other along 'X,' 'Y,' and 'Z' axes in a predetermined pattern to create three-dimensional objects by building up material discharged from the dispensing head onto the base member at a controlled rate.

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  • US5121329A - Apparatus and method for creating

    2013-2-1 · 1. Introduction. The tooth is an organ, which is as important as other skeletal tissues such as, bone and cartilage, and develops from the complex interactions between the epithelium (a tissue composed of cells that line the cavities and surfaces of structures throughout the body) and mesenchyme tissues (a connective tissue, is a type of loose connective tissue, which is derived from all three ...

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  • Review scaffold design and stem cells for tooth ...

    Cohen's Pathways of the Pulp 10th ed. [dentistry] - K. Hargreaves et. al. (Mosby 2011) BBS (PDF) Cohen's Pathways of the Pulp 10th ed. [dentistry] - K. Hargreaves et. al. (Mosby 2011) BBS | Phẩu …

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  • AccessAnatomy - Columbia University

    An x-ray shows only one two dimensional view of the three dimensional tooth. In preparing outline and convenience form the operator must visualize the total three dimensional morphology of the tooth. ... Inadequate Opening - compromised cleaning and shaping of canals ... Permanent dentin production makes the pulp cavity more and more narrow as ...

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  • Cavity Preparations | University of Toronto Faculty of ...

    When the cavity is shallow, it is recommended to use resin composite since it does not carry the same risk of fracture under occlusal loads when used in thin sections as does amalgam. This is a great benefit considering that such lesions occur right on top of pulp horns. Research and Clinical Implications

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  • Tooth Eruption Results from Bone Remodelling Driven

    2013-3-15 · Intermittent tongue, lip and cheek forces influence precise tooth position, so we here examine the possibility that tissue remodelling driven by functional bite-force-induced jaw-strain accounts for tooth eruption. Notably, although a separate true ‘eruptive force’ is widely assumed, there is little direct evidence for such a force. We constructed a three dimensional finite element model ...

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  • 5 Types of Dental Burs & When To Use Them »

    Results: Of the two hundred maxillary second premolars, 64.1% had one root canal at the apex and 35.4 % had two root canals at the apex. The average length of the teeth was 21.5 mm. Concerning the canal morphology, 33.6% of the teeth exhibited Vertucci type II configuration followed by type IV pattern (31.1%); 29.2% of the teeth possessed type I pattern.

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  • Root canal morphology of maxillary second premolars

    2016-5-3 · After indirect capping, injured odontoblasts generate reactionary dentin, whereas after direct capping of a pulp exposure pulp, cells stimulate the formation of reparative dentin. The aim of this study was to evaluate and compare the effects of two direct capping agents on pulp tissue reactions: Hydrogel (a bovine serum albumin (BSA)/glutaraldehyde,) and Dycal (a calcium hydroxide-based ...

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  • Reactionary and reparative dentin formation after

    Cohen's Pathways of the Pulp 10th ed. [dentistry] - K. Hargreaves et. al. (Mosby 2011) BBS

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  • (PDF) Cohen's Pathways of the Pulp 10th ed. [dentistry ...

    2007-4-1 · Placement of miniscrews in the maxillary palatal slope risks injury to the greater palatine nerve exiting the greater palatine foramen. The greater palatine foramen is located laterally to the third molar or between the second and third molars.18, 19, 20 Location, size, and shape of the foramen can vary with ethnicity.18, 20 The greater palatine nerve exits the foramen and runs anteriorly, 5 ...

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  • Risks and complications of orthodontic miniscrews ...

    2019-6-4 · Presuming one could drop into the pulp chamber in the way drawn and described above, the chamber roof would now be removed by scooping it up and away with a round carbide. A 2-dimensional (2-D) drawing, with the relatively small size of the bur and chamber roof overhanging a large pulp chamber, makes this seem like a reasonable proposition.

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  • Current Concepts in Access Cavity Preparation

    2012-3-26 · Matt Strassler [March 25, 2012] The annihilation of particles and anti-particles gets a lot of press --- it sounds mysterious and scary and exciting and makes its way into lots of science fiction --- but this bread-and-butter process at the heart of particle physics …

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  • Cracked tooth diagnosis and treatment: An alternative

    2020-12-30 · A cuspal stress plane is a stress plane, the perimeter of which is located approximately apical to one cusp, or apical to two or more connected cusps, where the axial aspect of the stress plane may intersect the pulp chamber walls or roof (but does not intersect the pulp chamber floor), and where the lateral aspect of the stress plane ...

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  • Reactionary and reparative dentin formation after

    2016-5-3 · After indirect capping, injured odontoblasts generate reactionary dentin, whereas after direct capping of a pulp exposure pulp, cells stimulate the formation of reparative dentin. The aim of this study was to evaluate and compare the effects of two direct capping agents on pulp tissue reactions: Hydrogel (a bovine serum albumin (BSA)/glutaraldehyde,) and Dycal (a calcium hydroxide-based ...

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  • Root canal morphology of maxillary second premolars

    Materials and Methods: Two hundred maxillary second premolars were collected, stained, decalcified, and cleared. Cleared teeth were examined in a steromicroscope under 7.5× magnification and the following observations were made: (1) length of the teeth, (2) number of root canals, (3) root canal configuration by Vertucci’s classification, (4)number of isthmi between the canals, (5) frequency ...

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  • Home Page: Journal of Endodontics

    2021-7-22 · Diagnosis of Vertical Root Fractures by Cone-beam Computed Tomography in Root-filled Teeth with Confirmation by Direct Visualization: A Systematic Review and Meta-Analysis

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  • US9694539B2 - Endodontic treatment simulation

    A device for endodontic treatment simulation is described including: at least one physical tooth model including pulp chamber and root canals, manufactured by way of layered manufacturing or rapid prototyping techniques and corresponding to a real-life endodontic case. Methods and systems for designing and manufacturing the device are also described.

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  • Femtosecond Laser Micro/Nano-manufacturing:

    2020-2-5 · Introduction. As the main elements in the human body, carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus are essential. Among them, phosphorus plays an indispensable role considering the following aspects: (1) it is one of the basic components of nucleic acids that make up genetic substances; (2) it is a necessary part of body fluid, regulation of acid-base balance, and energy ...

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  • Phosphorus Science-Oriented Design and Synthesis of ...

    Textbook of Dental & Oral Histology with Embryology & MCQs - 2nd ed. (2010).pdf

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  • AccessAnatomy - Columbia University

    An x-ray shows only one two dimensional view of the three dimensional tooth. In preparing outline and convenience form the operator must visualize the total three dimensional morphology of the tooth. ... Inadequate Opening - compromised cleaning and shaping of canals ... Permanent dentin production makes the pulp cavity more and more narrow as ...

    Get Price
  • Comparison of an adaptive local thresholding method

    2017-12-19 · Endodontics is the dental specialty concerned with the maintenance of the dental pulp (formed by nerves, blood vessels and connective tissues) in healthy state and with the treatment of the pulp cavity, i.e. pulp chamber and root canal.

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  • Open Bionics: 3D printed prosthetic limbs

    2010-2-2 · The invention claimed is: 1. A method for producing a dentist tool comprising an overlay configured to be used by a dentist with at least one dentist cutting tool in removing tooth structure from a tooth, said method comprising: determining a predetermined part of tooth structure to be removed so as to prepare a tooth for further treatment; determining an overlay fitting said tooth and fitting ...

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  • Method of preparation for restoring tooth structure -

    2016-5-3 · After indirect capping, injured odontoblasts generate reactionary dentin, whereas after direct capping of a pulp exposure pulp, cells stimulate the formation of reparative dentin. The aim of this study was to evaluate and compare the effects of two direct capping agents on pulp tissue reactions: Hydrogel (a bovine serum albumin (BSA)/glutaraldehyde,) and Dycal (a calcium hydroxide-based ...

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  • Reactionary and reparative dentin formation after

    2005-1-1 · Heat as a pulp test has a relatively high sensitivity but is the least accurate overall of the three common pulp tests owing to low specificity. 42 Cold testing with tetraflouroethane, ethyl chloride or carbon dioxide (CO 2) snow is relatively reliable and generally more accurate than heat. Cold testing is presumed to be more reliable than EPT ...

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  • State of the art and science of endodontics -

    Surface Topography: Metrology and Properties. An international forum for academics, industrialists and engineers to publish the latest research in surface topography measurement and characterisation, instrumentation development and the properties of surfaces. This journal will soon be changing to double-anonymous peer review.

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  • Surface Topography: Metrology and Properties -

    2001-12-6 · Modeling the budgets of heat, water vapor, and carbon dioxide within three-dimensional vegetation was tried in this work. This model consists of three submodels: a model for a turbulent flow within vegetation, a model for radiation transfer within vegetation, and a stomatal conductance model.

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  • Advances in Fluid Modeling and Turbulence

    2020-2-7 · In recent years, how to apply immersive virtual reality technologies in education, psychological therapies and so on has increasingly been the object of study in recent years. In this study, we develop an interactive training application prototype of the full-color powder-based three-dimensional …

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  • Education and Awareness of Sustainability |

    IntechOpen is a leading global publisher of Journals and Books within the fields of Science, Technology and Medicine. We are the preferred choice of over 60,000 authors worldwide.

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  • Dental Robotics: A Disruptive Technology

    2021-5-11 · Computer-assisted dental implant surgery is used more and more often by clinicians. The system uses the cone-beam computed tomography (CBCT) analysis but also the standardization of bi-dimensional radiographs . Robotic surgery is also carried out in the upper aerodigestive tract reachable via the oral cavity [34,35]. Transoral robotic surgery ...

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  • Additive Manufacturing Technologies: An Overview

    The use of conventional manufacturing methods is mainly limited by the size of the production run and the geometrical complexity of the component, and as a result we are occasionally forced to use processes and tools that increase the final cost of the element being produced. Additive manufacturing techniques provide major competitive advantages due to the fact that they adapt to the ...

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  • University of Southampton Research Repository ePrints

    2020-1-29 · An overview on the progress of the research work on the aerodyamics and aeroa-coustics of a three-dimensional multi-element wing with slat track is presented. A two step computational procedure which involves the solution of Navier-Stokes equations in the rst step and an integral surface solution of the Ffowcs-Williams

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  • Animal Oral Exam - Veterinary Dentist - Wisconsin,

    Mineral trioxide aggregate (MTA) is a dental material used extensively for vital pulp therapies (VPT), protecting scaffolds during regenerative endodontic procedures, apical barriers in teeth with necrotic pulps and open apices, perforation repairs as well as root …

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  • Mineral trioxide aggregate and other bioactive

    2016-2-29 · Moulding usually involves: (i) preparing the consolidated sand mould around a pattern held within a supporting metal frame, (ii) removing the pattern to leave the mould cavity with cores. Mould cavity is the primary cavity. The mould cavity contains the liquid metal and it …

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  • Metal casting processes - IIT Guwahati

    2021-7-22 · Meet Our Specialists The Dentistry and Oral Surgery Service at Cornell’s Equine Hospital offers both routine and advanced dental care for horses. Our team includes Dr. Jennifer Rawlinson, a Diplomate of the American Veterinary Dental College who specializes in equine dentistry, Ms. Meghan Pashow, the lead veterinary technician in the Equine Hospital, and the faculty and staff

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  • Dentistry and Oral Surgery | Cornell University College

    2000-5-13 · Disadvantages of the technique include the total loss of tactile sensation whilst preparing the cavity because the nozzle does not touch the surface of the tooth. ... one-dimensional, two-phase ...

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  • Dentine caries excavation: a review of current clinical ...

    2010-8-17 · The original is highly distorted, but there is some anatomy preserved, and in combination with an elaborate three-dimensional reconstruction, it appears that the pelvis shares some features with later hominins (Lovejoy et al. 2009d). Most importantly, the iliac blades appear a little shorter than they do in apes, and there is a structure ...

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