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https://www.readbyqxmd.com/read/17980280/outcomes-of-surgical-and-endovascular-treatment-of-acute-traumatic-thoracic-aortic-injury
#1
COMPARATIVE STUDY
Paul J Riesenman, Mark A Farber, Preston B Rich, Brett C Sheridan, Robert R Mendes, William A Marston, Blair A Keagy
BACKGROUND: Acute thoracic aortic injury resulting from blunt trauma is a life-threatening condition. Endovascular therapy is a less invasive treatment modality that may potentially improve patient outcomes. We reviewed our experience with patients who sustained blunt thoracic aortic injuries distal to the left subclavian artery and presented for open surgical or endovascular repair. METHODS: Between August 1993 and August 2006, 62 patients sustained blunt thoracic aortic injuries distal to the origin of the left subclavian artery and proceeded to undergo open surgical (n = 48, 77%), or endovascular repair (n = 14, 23%)...
November 2007: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/14503829/analysis-of-mechanical-preparations-in-extracted-teeth-using-protaper-rotary-instruments-value-of-the-safety-quotient
#2
J Y Blum, P Machtou, C Ruddle, J P Micallef
The purpose of this study was to apply the Endographe to analyze the vertical forces and torque developed during mechanical preparations in extracted teeth. The data collected in this study may be used to calculate the safety quotient (SQ) as proposed by J.T. McSpadden. The SQ formula is defined as the torque required to break a file at D3 divided by the mean working torque required to cut dentin. The Endographe is a unique force-analyzer device equipped to measure, record, and generate graphs of the vertical forces and torque exerted during root canal preparation...
September 2003: Journal of Endodontics
https://www.readbyqxmd.com/read/13425760/-color-laparophotography-with-the-four%C3%A3-s-endograph-its-diagnostic-value-in-diseases-of-the-liver-and-bile-ducts
#3
J CAROLI, A FOURES
No abstract text is available yet for this article.
March 1957: Archives des Maladies de L'appareil Digestif et des Maladies de la Nutrition
https://www.readbyqxmd.com/read/11716076/analysis-of-the-endogrammes-developed-during-obturations-on-extracted-teeth-using-system-b
#4
RANDOMIZED CONTROLLED TRIAL
J Y Blum, C Cathala, P Machtou, J P Micallef
The ability of an obturation technique to fill the root canal system tridimensionally depends partially on the timing and intensity of force applications. The aim of this study was to use the Endographe to analyze the forces and wedging effects developed in the root canal using a new obturation technique: System B. This system uses a heat plugger that simultaneously heats and pushes gutta-percha. The plugger was used to soften and move the gutta-percha apically during the down-pack stage. Two different methods, however, were used to withdraw the plugger from the compacted gutta-percha...
November 2001: Journal of Endodontics
https://www.readbyqxmd.com/read/11501586/qualitative-description-of-a-new-preparation-technique-the-balanced-force-motion-using-the-endographe
#5
J Y Blum, P Machtou, J P Micallef
The forces and torque applied during the balanced-force motion technique of root canal preparation were measured with the Endographe. Five endodontists prepared 100 extracted teeth, all straight and with similar root anatomy. The assignment of "tooth practitioner" was randomized. Gates-Glidden burs were used to prepare the coronal part and ensure apical patency for the other instruments. The balanced-force technique with conventional instruments was then used for the body of the canal. For the apical part either the watch-winding pull with conventional instruments or the reversed balanced-force technique with manual GT files was used...
August 2001: Journal of Endodontics
https://www.readbyqxmd.com/read/11293868/-analysis-of-artefacts-by-virtual-endoscopy-visualization-of-spiral-ct-data
#6
COMPARATIVE STUDY
A Bode, F Dammann, E H Pelikan, M Heuschmid, E Schwaderer, M Schaich, C D Claussen
PURPOSE: Analysis of patterns and causes of artifacts found in endographic visualization of spiral CT data. MATERIALS AND METHODS: A straight perspex tube with a diameter of 20 mm was scanned in three different positions with ten scan protocols of varying table feed, increment, kernel, and signal to noise ratio (Tomoscan AVE, Philips). The resulting 30 CT datasets were visualized as a virtual endoscopy (VE) with ten different visualization protocols (Easy Vision 4...
March 2001: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/10709505/preliminary-study-of-the-forces-developed-by-practitioners-during-amalgam-condensation
#7
COMPARATIVE STUDY
J Y Blum, J P Micallef
The aim of this preliminary study was to analyze, in vitro, the forces developed by practitioners during amalgam condensation. Standardized Class II cavities were drilled into 40 freshly extracted teeth. The forces exerted during condensation were then measured by means of a new device, the Endographe, and plotted online or offline as a function of time on Endogrammes. The work techniques of the different practitioners revealed similarities. The mean values of the vertical forces (+/- SEM) were: 15 +/- 2 N for manual compaction of capsule amalgam; 8 +/- 3 N for manual compaction of amalgam with a higher mercury-to-alloy ratio; 6 +/- 4 N for mechanical compaction of encapsulated amalgam; and 4 +/- 2 N for mechanical compaction of the modified amalgam...
August 1999: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/10371905/location-of-contact-areas-on-rotary-profile-instruments-in-relationship-to-the-forces-developed-during-mechanical-preparation-on-extracted-teeth
#8
COMPARATIVE STUDY
J Y Blum, P Machtou, J P Micallef
AIM: The aim of this study was to locate the areas of direct instrument contact with dentine in the root canal system during rotary preparation and to analyse the relationship between these areas and the vertical forces and torque developed during the preparation. METHODOLOGY: Canal preparations were performed by endodontists either with the step-back (SB) or the crown-down (CD) technique. In order to locate the areas of contact, the instruments were coated with two layers of gold by electro-deposition...
March 1999: International Endodontic Journal
https://www.readbyqxmd.com/read/10356466/analysis-of-forces-developed-during-mechanical-preparation-of-extracted-teeth-using-profile-niti-rotary-instruments
#9
COMPARATIVE STUDY
J Y Blum, A Cohen, P Machtou, J P Micallef
AIM: The aim of this study was to analyse the vertical forces and torque developed in the root canal system of extracted teeth during mechanical preparation using ProFile NiTi instruments. METHODOLOGY: Instrument wear and fracture is in great part due to the repeated application of forces and torque during the course of root-canal preparation but research into the direct relationship has been hampered by the lack of adequate measuring devices. Measurements of these forces and torque were made with a new force analyser device, the Endographe, that was equipped with a holder to record and generate graphs of the vertical forces and torque exerted during the preparations...
January 1999: International Endodontic Journal
https://www.readbyqxmd.com/read/9641122/analysis-of-forces-developed-during-obturations-wedging-effect-part-ii
#10
COMPARATIVE STUDY
J Y Blum, P Machtou, J P Micallef
The aim of this study was to use a force analyzer device, the modified Endographe with a new cupule, to compare the forces and wedging effects developed in the root canal using four obturation techniques: warm vertical compaction, lateral condensation, thermomechanical compaction, and Thermafil condensation. The different methods--that varied in instrumentation, duration, and compaction load--were studied from graphs representing the force application sequences. In addition, the graphs resulting from modifications in technique (such as using an undersized spreader and pluggers that were either too small or too big) and deliberately induced failures in technique (by use of a too small condenser or a too small master cone) were studied...
April 1998: Journal of Endodontics
https://www.readbyqxmd.com/read/9641121/analysis-of-forces-developed-during-obturations-wedging-effect-part-i
#11
COMPARATIVE STUDY
J Y Blum, P Machtou, J P Micallef
The aim of this study was to define the "wedging effect" created by the intracanal forces developed during obturations and to measure it using a force analyzer device. In endodontics, the wedging effect is the result of, for example, a plugger pushing gutta-percha into a canal: the plugger functions much as the rod of a hydraulic jack and the vertical force applied by this rod induces in the cylinder (i.e. the canal) a hydrostatic pressure that is relatively equal in all directions. It is these forces resulting from the hydrostatic pressure that have been labeled the wedging effect...
April 1998: Journal of Endodontics
https://www.readbyqxmd.com/read/9588978/analysis-of-forces-developed-during-root-canal-preparation-with-the-balanced-force-technique
#12
COMPARATIVE STUDY
J Y Blum, P Machtou, S Esber, J P Micallef
The aim of this study was to examine the forces and torque developed during root canal preparation with the balanced force technique using a recently described force-analyser device. A tooth was placed in a holder within the Endograph and forces and torques exerted were recorded. These parameters, which can be studied during preparation (on-line) or stored and examinated subsequently (off-line) generated endograms, which showed the forces generated with time. In addition, the endograms of preparations performed by students and endodontists, as well as deliberately induced failures in preparation technique (broken instruments), were compared...
November 1997: International Endodontic Journal
https://www.readbyqxmd.com/read/6528654/-combined-endoscopic-endographic-diagnosis-of-the-larynx-and-trachea-with-contrast-medium-powders
#13
R H Brandt
The endographic examination by means of pulverized contrast media such as tantalum or visotrast acid has proved to be appropriate in laryngotracheobronchial diseases as a simple and safe, endoscopy-complementing method. It gives diagnostic radiological information in addition to endoscopic, orthograde evaluation by the frontal and sagittal image of the organ in which details of the structure and alterations can be detected. In 170 different examinations of the organ no threatening side-effects could be observed, even not in cases of remarkably obstructive changes...
1984: Zeitschrift Für Erkrankungen der Atmungsorgane
https://www.readbyqxmd.com/read/5321270/-endograph-registration-and-the-schreinemakers-method
#14
I M Cortis
No abstract text is available yet for this article.
October 1965: Annali di Stomatologia
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