Results 101 to 110 of about 74,163 (353)

Effects of auxiliary device use on smear layer removal

Journal of Oral Science, 2016
This study evaluated the effects of different auxiliary irrigation devices on smear layer removal with a chelating solution (QMix). Fifty single-rooted permanent human teeth were shaped with a sequence of nickel-titanium instruments. A 2% chlorhexidine gel was used as a chemical auxiliary substance during preparation.
Marina C, Prado, Fernanda, Leal, Heloisa, Gusman, Renata A, Simão, Maíra, Prado   +4 more
openaire   +3 more sources

Peptide‐Induced Ferroelectricity in Charge‐Transfer Supramolecular Materials

Advanced Materials, EarlyView.
Bio‐inspired supramolecular charge‐transfer amphiphiles self‐assemble into nanoribbons in water, where peptide chirality‐induced symmetry breaking generates robust ferroelectricity across multiple systems. These water‐processable organic ferroelectrics also enhance neuronal outgrowth and electrophysiological maturity, offering a versatile strategy for ...
James V. Passarelli, Yang Yang, Cara S. Smith, Jing Hao, Dhwanit R. Dave, Ashwin Narayanan, Zaida Álvarez, Broderick K. Johnson, Kelly A. Marshall, Ivan Fithian, Hiroaki Sai, Ruomeng Qiu, Charlotte L. Stern, Liam C. Palmer, Evangelos Kiskinis, Samuel I. Stupp   +15 more
wiley   +1 more source

Flexibility of Various Nickel-Titanium Rotary Endodontic Files [PDF]

, 2014
Introduction: Nickel-titanium rotary files were originally developed to allow for greater flexibility when instrumenting root canals. The increased flexibility of nickel-titanium instruments allowed operators to negotiate canal curvatures with greater ...
Selin, Chelsea
core   +1 more source

Smear layer dissolution by peracetic acid of low concentration

International endodontic journal, 2011
To test the effect of a noncaustic concentration of peracetic acid (PAA) in a standardized smear layer model.The smear layer dissolution kinetics of 0.5% PAA on human dentine were compared to those of 2.25% PAA and 17% ethylenediaminetetraacetic acid (EDTA) solutions. Coronal dentine discs were prepared from six human maxillary molars.
De-Deus, G, Souza, E M, Marins, J R, Reis, C, Paciornik, S, Zehnder, Matthias   +5 more
openaire   +3 more sources

Operando X‐ray Spectroscopy Study of Pd and Pd–Au Laterally Condensed Catalysts during Selective Acetylene Hydrogenation: The Role of Carbon

Advanced Materials, EarlyView.
The selective hydrogenation of acetylene over laterally condensed Pd and Pd–Au catalysts (LCCs) was investigated using operando X‐ray absorption and photoelectron spectroscopy in combination with density functional theory. Pd‐LCCs were found to incorporate significantly more carbon into the metal lattice than Pd–Au LCCs, where the carbon uptake governs
Eylül Öztuna, Thomas Götsch, Daniel Cruz, Patrick Zeller, Olga V. Vinogradova, Zehua Li, Christian Rohner, Franz‐Philipp Schmidt, Zahra Gheisari, Alexander Steigert, Martin Muske, Michael Hävecker, Eugen Stotz, Iryna Antonyshyn, Frank Girgsdies, Olaf Timpe, Thomas Lunkenbein, Vanessa J. Bukas, Karsten Reuter, Robert Schlögl, Katarzyna Skorupska, Axel Knop‐Gericke, Beatriz Roldán Cuenya   +22 more
wiley   +1 more source

Comparative evaluation of smear layer removal by various chemomechanical caries removal agents: An in vitro SEM study

Journal of Indian Society of Pedodontics and Preventive Dentistry, 2015
Objectives: To comparatively evaluate the efficiency of various chemomechanical caries removal agents in smear layer removal. Materials and Methods: Class V cavities were prepared on the buccal surface of 45 extracted, noncarious molars and were divided ...
Rani Somani, Shipra Jaidka, Deepti Jawa, Shreya Mishra   +3 more
doaj   +1 more source

Finite size and intrinsic field effect on the polar-active properties of the ferroelectric-semiconductor heterostructures

, 2009
Using Landau-Ginzburg-Devonshire approach we calculated the equilibrium distributions of electric field, polarization and space charge in the ferroelectric-semiconductor heterostructures containing proper or incipient ferroelectric thin films.
A. D. Krutov, A. N. Morozovska, A. Y. Borisevich, E. A. Eliseev, G. A. Smolenskii, H. Y. Hwang, J. F. Scott, M. A. Itskovsky, P. Maksymovych, S. M. Sze, S. V. Kalinin, S. V. Svechnikov, V. M. Fridkin, V. Y. Shur   +13 more
core   +1 more source

From Thin Films to Nanodots: Bottom‐Up Integration of Fe3O4 on Nb:STO for Functional Oxide Nanostructures

Advanced Materials, EarlyView.
Scalable bottom‐up fabrication of Fe3O4 nanodots on Nb:SrTiO3 using anodic alumina templates enables long‐range ordered arrays with diameters down to 30 nm. STEM highlights the epitaxial growth of Fe3O4 films on Nb:SrTiO3. Complementary polarized neutron reflectometry (PNR) and X‐ray magnetic circular dichroism (XMCD) measurements on continuous films ...
Yifan Xu, Connie Bednarski‐Meinke, Yen‐Po Liu, Erkai Wang, Asma Qdemat, Peijia Yuan, Lilian Maria Vogl, Patrick Schöffmann, Thomas Saerbeck, Chenyang Yin, Gerhard Dehm, Felix Gunkel, Regina Dittmann, Oleg Petracic, Mai Hussein Hamed   +14 more
wiley   +1 more source

Efficacy of 17% Ethylenediaminetetraacetic Acid and Erbium, Chromium:Yttrium-scandium-gallium-garnet Laser on Root Surface Smear Layer Removal: A Comparative In Vitro Field Emission Scanning Electron Microscope Study

, 2023
Lakshmisree Sankar, Nivedha Kaliappan, Rajasekar Sundaram, Suganya Selvarangam, Arunmozhi Palaniyandi   +4 more
openalex   +1 more source

Designing Defect Structure and Interfacial Strain in an Epitaxial VN Bilayer Film by Tailoring N Concentration

Advanced Materials Interfaces, EarlyView.
The N concentration in an epitaxial VN bilayer is tailored from overstoichiometric V0.49N0.51 to understoichiometric V0.56N0.44. Based on ab initio, diffraction, and microscopy data, the overstoichiometric V0.49N0.51 layer contains V vacancies, N Frenkel pairs, and a high density of dislocations.
Marcus Hans, Damian M. Holzapfel, Zhuo Chen, Soheil Karimi Aghda, Michal Fečík, Daniel Primetzhofer, Zaoli Zhang, Jochen M. Schneider   +7 more
wiley   +1 more source