scholarly journals Stability, Mobility and Pull out Forces of Immediate Loaded Endosteal Screw Type Dental Implants of 4 and 4.5mm in Diameter (Comparative Experimental Study)

2005 ◽  
Vol 6 (3) ◽  
pp. 133-141
Author(s):  
Luay Abood ◽  
Munther Kazanji ◽  
Mumammed Essa
Keyword(s):  
Experimental Study ◽  
Dental Implants ◽  
Pull Out

Auszugverhalten von Schaftfräsern*/Pull-out behavior of end mills – Experimental study on different clamping devices with various clamping mechanisms

2018 ◽  
Vol 108 (05) ◽  
pp. 353-358
Author(s):  
E. Abele ◽  
F. Ali ◽  
M. Berger
Keyword(s):  
Experimental Study ◽  
Test Bench ◽  
Mechanical Load ◽  
Mechanisms Of Action ◽  
Heavy Duty ◽  
Press Fit ◽  
Pull Out ◽  
The Press ◽  
End Mills ◽  
Tool Position

Aus Schwerzerspanung und Turbinenschaufelfertigung ist bekannt, dass Werkzeuge aus dem Spannfutter ausgezogen werden. Die veränderte Werkzeugposition führt zur Abweichung von den vorgegebenen Toleranzen und einer geringeren Fertigungsqualität oder Beschädigung des Werkstücks. Der Artikel untersucht das Auszugsverhalten verschiedener Spannfutter. Mit einem Prüfstand können die Einflüsse der mechanischen Belastung und der Klemmlänge auf die Haltekraft im Pressverband betrachtet und die Wirkmechanismen beim Auszug des Werkzeuges aus dem Spannfutter sensorisch ermittelt werden.   From heavy-duty cutting and turbine blade manufacturing it is known that tools pull out from chucks. A change in tool position leads to deviations from tolerance and decreases manufacturing quality or damages the workpiece. This article explores the extension behavior of different chucks on a specifically designed test bench. This allows determining how mechanical load and clamping length influence the holding force in the press fit and what mechanisms of action affect the extraction of the tool from the chuck.

Osseointegration of dental implants in extraction sockets preserved with porous titanium granules - an experimental study

2012 ◽  
Vol 25 (2) ◽  
pp. e100-e108 ◽  
Author(s):  
Anders Verket ◽  
Ståle P. Lyngstadaas ◽  
Hans J. Rønold ◽  
Johan C. Wohlfahrt
Keyword(s):  
Experimental Study ◽  
Dental Implants ◽  
Porous Titanium

Histological Evaluation of the Effect of Using Growth Hormone Around Immediate Dental Implants in Fresh Extraction Sockets: An Experimental Study

2011 ◽  
Vol 20 (1) ◽  
pp. 47-55 ◽  
Author(s):  
Assem M. Hossam Eldein ◽  
Sherif H. Elghamrawy ◽  
Saeeda M. Osman ◽  
Amal R. Elhak
Keyword(s):  
Experimental Study ◽  
Growth Hormone ◽  
Dental Implants ◽  
Histological Evaluation

TM3-10 National survey and experimental evaluation of commonly used external ventricular drain (EVD) securement methods in a porcine model; recommendations to improve practise

2019 ◽  
Vol 90 (3) ◽  
pp. e17.3-e16
Author(s):  
D Akarca ◽  
A Durnford ◽  
F Ewbank ◽  
J Hempenstall ◽  
A Sadek ◽  
...  
Keyword(s):  
Experimental Study ◽  
Experimental Model ◽  
Experimental Evaluation ◽  
Porcine Model ◽  
External Ventricular Drain ◽  
Insertion Site ◽  
Trial Data ◽  
Significant Morbidity ◽  
Pull Out ◽  
Catheter Fracture

ObjectivesExternal ventricular drain (EVD) dislodgement is common and can lead to significant morbidity and mortality. UK trial data suggests dislodgement as high as 12%. This study aimed to establish the range of methods used nationally and determine the most secure method in a porcine model.DesignSurvey and experimental study.Subjects23 neurosurgical units surveyed. Porcine cadaver experimental model.MethodsSurvey distribution was made through the British Neurosurgical Trainee Research Collaborative. 15 securement methods were tested on the porcine model and peak pull-out force before EVD failure was measured. Failure was defined as catheter displacement 1 cm from the insertion site, catheter fracture or suture fracture.ResultsNationally, five EVD securement methods were in common use. There were considerable differences in peak pull-out force between methods. The most secure methods were a construct consisting of anchoring suture, further multiple sutures around a coil of catheter followed by either a soft (25.85N, 95% CI 24.95 N-26.75N) or hard plastic flange (29.05N, 95% CI 25.69 N-32.41N). Individually, anchoring sutures, soft flanges, VentriFix and staples were least secure, whilst multiple sutures and hard flanges were most secure.ConclusionsAn anchoring suture followed by a coil of catheter and a flange is the most secure method for securing EVDs, withstanding up to 8.2 times the force of a single anchoring suture. It is easily employed and may decrease the likelihood of EVD dislodgement and associated complications.

Pull-Out Strength Analysis of Quartz Fibre Posts in Dental Implants

2006 ◽  
pp. 130-135
Author(s):  
Anna Maria Visco ◽  
L. Calabrese ◽  
Nino Campo ◽  
A. Bonavita ◽  
Lorenzo Torrisi
Keyword(s):  
Dental Implants ◽  
Strength Analysis ◽  
Pull Out ◽  
Quartz Fibre ◽  
Pull Out Strength
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