Results 21 to 30 of about 1,287,317 (274)
, 2023 Fiber-optic sensor has emerged fast development and greatly applied in various fields. In this paper, by manually fire-drawing method of single mode fibers, we propose and fabricate two kinds of ultra-compact graphene-coated three-twisted-taper and four ...
Qiming Yin (8815145) +3 more
core +2 more sources
Bulletin of the National Research Centre, 2020 Background The aim of this study was to compare the effect of different kinematics and operational temperature on cyclic fatigue resistance of Protaper Next, WaveOne Gold, and Twisted File Adaptive files in a static model. Methodology An artificial canal,
Amira Galal Ismail +2 more
doaj +1 more source
Twisted vs Protaper Files in Contemporary Pediatric Endodontics
International Journal of Clinical Pediatric Dentistry, 2014 To compare the cutting efficiency of twisted files with protaper files in primary teeth.It is an experimental, in vitro study comparing two groups.The obtained results from the experiment were statistically analyzed with Mann-Whitney U-test. Twisted files showed better cutting efficiency when compared to protaper files.Since twisted files show a better
Ramasetty Prabhakar, Attiguppe +2 more
openaire +2 more sources
Projective Dirac Operators, Twisted K-Theory, and Local Index Formula [PDF]
, 2011 We construct a canonical noncommutative spectral triple for every oriented closed Riemannian manifold, which represents the fundamental class in the twisted K-homology of the manifold.
Zhang, D., Zhang, Dapeng, Dapeng Zhang
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Dentinal Microcrack Formation by Different Rotary Endodontic File Systems: An In-vitro Study [PDF]
Journal of Clinical and Diagnostic Research, 2022 Introduction: During endodontic treatment, biomechanical preparation of the root canals constitutes one of the prime steps to enable bacterial eradication, irrigant percolation and three dimensional obturation of the canal space.
Ruchika Gupta +4 more
doaj +1 more source
Medical Journal of Dr. D.Y. Patil Vidyapeeth, 2023 Aim: The aim of the study is to evaluate the effect of hand files, rotary nickel-titanium files, and self-adjusting file (SAF) on the incidence of crack formation during retreatment.
Pooja Newase +5 more
doaj +1 more source
Influence of solvent use on apical extrusion during removal of Resilon™ from root canals [PDF]
Vojnosanitetski Pregled, 2023 Background/Aim. During retreatment, filling material and debris may extrude and trigger an inflammatory reaction of periapical tissues. Resilon™ has not been investigated in terms of solvent use and influence on apical extrusion during retreatment.
Vukoje Karolina +4 more
doaj +1 more source
Twisted Poincare duality for some quadratic Poisson algebras [PDF]
, 2007 We exhibit a Poisson module restoring a twisted Poincaré duality between Poisson homology and cohomology for the polynomial algebra R=C[X1Xn] endowed with Poisson bracket arising from a uniparametrised quantum affine space.
Stéphane Launois +3 more
core +1 more source
Incidence of Deformation and Fracture of Twisted File Adaptive Instruments after Repeated Clinical Use [PDF]
Journal of Oral and Maxillofacial Research, 2016 The aim of the present study was to investigate the incidence of deformation and fracture of twisted file adaptive nickel-titanium instruments after repeated clinical use and to identify and check whether the three instruments within the small/medium sequence showed similar or different visible signs of metal fatigue.One-hundred twenty twisted file ...
GAMBARINI, Gianluca +7 more
openaire +3 more sources
Various heat-treated nickel–titanium rotary instruments evaluated in S-shaped simulated resin canals
Journal of Dental Sciences, 2017 Background/purpose: Heat treatment of nickel–titanium (NiTi) alloy produces a better arrangement of the crystal structure, thereby leading to increased flexibility and improved fatigue resistance or plastic behavior.
Yu Gu +9 more
doaj +1 more source