Results 151 to 160 of about 512,547 (364)
Progress in orthodontics, 2014 BackgroundThe purpose of this study was to determine the bond strength of different orthodontic bracket materials (ceramic, stainless steel, and titanium) as well as stresses developed in bracket-cement-enamel systems using finite element (FE) analysis ...
S. Elsaka, S. Hammad, N. Ibrahim
semanticscholar +1 more source
Spin‐Valley Polarization Control in WSe2 Monolayers using Photochemical Doping
Advanced Optical Materials, EarlyView.A photochemical doping method is employed to modulate the spin‐valley polarization in WSe2 monolayers by tuning the carrier density from electron‐rich to hole‐rich regimes. This controlled doping enables a three‐fold variation in exciton polarization, revealing relaxation channels driven by scattering between excitons and charge carriers in two ...
Eirini Katsipoulaki +11 more
wiley +1 more source
Journal of Multidisciplinary HealthcareYun-Yu Kuo,1 Jason Chen-Chieh Fang,2 I-Kuan Wang,3 Chiung-Shing Huang,4 Hui-Ling Chen,1,* Tzung-Hai Yen5,* 1Department of Dentistry and Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taoyuan, Linkou, 333, Taiwan; 2Chang Gung Memorial ...
Kuo YY +5 more
doaj
Journal of Applied Oral Science, 2014 Objective To compare the influence of archwire material (NiTi, beta-Ti and stainless steel) and brackets design (self-ligating and conventional) on the frictional force resistance.
Maria Regina Guerra Monteiro +3 more
semanticscholar +1 more source
Prequantization and Lie brackets [PDF]
Journal of Symplectic Geometry, 2004 We start by describing the relationship between the classical prequantization condition and the integrability of a certain Lie algebroid associated to the problem and use this to give a global construction of the prequantizing bundle in terms of path spaces (Introduction), then we rephrase the problem in terms of groupoids (second section), and then we
openaire +4 more sources
BP/MoS₂ Van Der Waals Heterojunctions for Self‐Powered Photoconduction
Advanced Optical Materials, EarlyView.A multilayer black phosphorus (BP)/monolayer MoS₂ vertical heterostructure is investigated using four‐probe measurements. The device exhibits rectifying behavior, dominant n‐type transport, low contact resistance, and an interface barrier of 68 meV.
Adolfo Mazzotti +9 more
wiley +1 more source
Evaluation of the Effects of Different Mouthrinses on the Color Stability of One Type of Glass Ionomer, Compomer and Giomer [PDF]
Journal of Dental Materials and Techniques, 2015 Objectives: The aim of this study was to evaluate the effect of four commercially available mouthrinses on the color stability of one type of glass ionomer, giomer and compomer. Method: 60 disc-shaped specimens, 180 in total (7*2mm), fabricated from each
Shaghayegh Razavi +3 more
doaj
Shear Bond Strength of a Mechanically Retained Ceramic Bracket
Australasian Orthodontic Journal, 1993 The failure under shear loading of mechanically retained ceramic brackets bonded to enamel was investigated.
Carly Glenn, Tyas Martin J.
doaj +1 more source
Spectrophotometric evaluation of dental bleaching under orthodontic bracket in enamel and dentin
Journal of Clinical and Experimental Dentistry, 2014 Aware of the diffusion capacity of bleaching in the dental tissues, many orthodontists are subjecting their patients to dental bleaching during orthodontic treatment for esthetic purposes or to anticipate the exchange of esthetic restorations after the ...
Nádia Lunardi +4 more
semanticscholar +1 more source
Discretization and Moyal brackets [PDF]
International Journal of Mathematics and Mathematical Sciences, 2001 We give a q‐analysis version of a discretization procedure of Kemmoku and Saito leading to an apparently new q‐Moyal type bracket.
openaire +4 more sources