Results 21 to 30 of about 1,797,053 (297)
Comparison of the cyclic fatigue resistance of original and replica-like files: a systematic review and meta-analysis [PDF]
Objectives This systematic review and meta-analysis aimed to evaluate the existing literature and quantitatively analyze the cyclic fatigue resistance of original and replica-like nickel-titanium endodontic files.
Mert Unal, Fatih Cakici
doaj +1 more source
AIMS: The Open-Fracture Patient Evaluation Nationwide (OPEN) study was performed to provide clarity in open fracture management previously skewed by small, specialist centre studies and large, unfocused registry investigations.
Ashwood, N +8 more
core +1 more source
Multiscale modelling of materials chemomechanics : brittle fracture of oxides and semiconductors [PDF]
Fracture is one of the most challenging ‘multi-scale’ problems to model: since crack propagation is driven by the concentration of a long-range stress field at an atomically sharp crack tip, an accurate description of the chemical processes occurring in ...
De Vita, Alessandro +4 more
core +1 more source
Surface imaging of metallic material fractures using optical coherence tomography [PDF]
We demonstrate the capability of optical coherence tomography (OCT) to perform topography of metallic surfaces after being subjected to ductile or brittle fracturing.
Demian, D. +4 more
core +1 more source
Background/purpose: There are controversial opinions about the prognosis of the retrieval of a separated instrument from the root canal. The aim of the study was to establish a statistical model to predict the success rate of the retrieval of separated ...
Chen Lin +8 more
doaj +1 more source
Existence of solutions to a regularized model of dynamic fracture [PDF]
Existence and convergence results are proved for a regularized model of dynamic brittle fracture based on the Ambrosio–Tortorelli approximation. We show that the sequence of solutions to the time-discrete elastodynamics, proposed by Bourdin, Larsen ...
Christoph Ortner +5 more
core +1 more source
It is fortunate that a paper on new surgical treatment of fractures does not imply that all fractures shall be treated by open surgical methods. However, it does imply correctly that neither the closed nor open methods are as efficient as they should be. Within a short time the entire subject of closed treatment will have to be rewritten on a selection
openaire +1 more source
The Management of Fractured Dental Instruments: A Case Series
The most common problem faced by dentists during root canal therapy is instrument separation. Instrument separation leads to the inefficient biomechanical preparation of the canals, which can affect the outcome of the root canal-treated tooth. Hence, bypassing the fractured instrument or removal can be accounted as a viable choice to maintain the ...
Lakshmaiah, Deepika +4 more
openaire +2 more sources
Objective: The objective of this study was to compare the force required to fracture the roots in a vertical direction following the use of two instrument retrieval systems.
Asit Vats +5 more
doaj +1 more source
Comparison of Separation of Manual and Rotary Files during Endodontic Treatment: A KAP Survey [PDF]
OBJECTIVE: To determine the frequency of manual and rotary instrument separation during endodontic treatment amongst experienced dental practitioners and house surgeons.
Talha M Siddiqui +3 more
doaj +1 more source

