Results 21 to 30 of about 618,391 (283)
The Effect of Different Bracket Base Cleaning Method on Shear Bond Strength of Rebonded Brackets
The Journal of Contemporary Dental Practice, 2013 ABSTRACT Aim To assess the effect of different bracket base conditioning method on shear bond strength (SBS) of rebonded brackets. Materials and methods Eighty brackets were bonded to freshly extracted premolar teeth using light cured composite adhesive. SBS was measured for 20 random samples as control group (G1).
Emad F, Al Maaitah +3 more
openaire +2 more sources
Branes, Quantum Nambu Brackets, and the Hydrogen Atom [PDF]
, 2004 The Nambu Bracket quantization of the Hydrogen atom is worked out as an illustration of the general method. The dynamics of topological open branes is controlled classically by Nambu Brackets.
Curtright, Thomas, Zachos, Cosmas
core +2 more sources
Comparison of the Debonding Characteristics of Conventional and New Debonding Instrument used for Ceramic, Composite and Metallic Brackets – An Invitro Study [PDF]
Journal of Clinical and Diagnostic Research, 2014 Background: Debonding procedure is time consuming and damaging to the enamel if performed with improper technique. Various debonding methods include: the conventional methods that use pliers or wrenches, an ultrasonic method, electrothermal devices ...
Garima Choudhary +5 more
doaj +1 more source
The Moments of the Hydrogen Atom by the Method of Brackets [PDF]
Symmetry, Integrability and Geometry: Methods and Applications, 2017 Expectation values of powers of the radial coordinate in arbitrary hydrogen states are given, in the quantum case, by an integral involving the associated Laguerre function. The method of brackets is used to evaluate the integral in closed-form and to produce an expression for this average value as a finite sum.
Gonzalez, Ivan +4 more
openaire +3 more sources
Deformation Quantization of Nambu Mechanics [PDF]
, 2003 Phase Space is the framework best suited for quantizing superintegrable systems--systems with more conserved quantities than degrees of freedom. In this quantization method, the symmetry algebras of the hamiltonian invariants are preserved most naturally,
Curtright, Thomas L, Zachos, Cosmas K
core +4 more sources
Journal of Orthodontic Science, 2020 OBJECTIVE: To compare demineralization around orthodontic brackets cured by conventional method and transillumination method. MATERIALS AND METHOD: Sixty freshly extracted human premolar teeth were divided into four groups. Group 1: Brackets bonded with
Monis Raza +5 more
doaj +1 more source
Thirring sine-Gordon relationship by canonical methods [PDF]
, 2002 Using the canonical method developed for anomalous theories, we present the independent rederivation of the quantum relationship between the massive Thirring and the sine-Gordon models.
Coleman +9 more
core +2 more sources
Judging the Intersection of Convex Polygons by Bracket Method [PDF]
Proceedings of the 2nd International Conference on Computer Application and System Modeling, 2012 In this paper, we study a basic problem based on bracket manipulations in computational geometry: how to judge if two solid convex polygons intersect or not. A key idea in our criteria is that the signs of some brackets of the homogeneous coordinates of the vertices of the two convex bodies are all we need in carrying out the judgment. Experiments show
Yaogang Du, Ying Chen
openaire +1 more source
Comparison of the shear Bond strength between new and recycled brackets: An in vitro study [PDF]
Iranian Journal of Orthodontics, 2009 Aim: There are currently many patients who need orthodontic treatment. Given the high expense of orthodontic therapy and the fact that orthodontic brackets are recyclable elements, this study was carried out to compare the shear Bond strength of new and ...
Valiollah Arash, Abdolmajid Alizadeh
doaj +1 more source
Turkish Journal of Orthodontics, 2015 Objective:To evaluate the initial shear bond strengths (SBSs) of ceramic brackets using either a self-etching primer (SEP) or the conventional method (CM) after intracoronal bleaching with sodium perborate and distilled water.Methods:Eighty human ...
Fethiye Çakmak Özlü +4 more
doaj +1 more source