Comparison of Enamel Demineralisation Scores between Passive Self-Ligation Brackets and Conventional Ligation Brackets in Patients Undergoing Orthodontic TreatmentA Laser Fluorescence Study [PDF]
Introduction: Enamel demineralisation is often seen in patients undergoing fixed orthodontic treatment because appliances create retentive areas around the brackets leading to food debris accumulation.
Akriti Tiwari, Ravindra Kumar Jain
doaj +1 more source
The Effect of Different Bracket Base Cleaning Method on Shear Bond Strength of Rebonded Brackets
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
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Branes, Quantum Nambu Brackets, and the Hydrogen Atom [PDF]
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
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Comparison of the Debonding Characteristics of Conventional and New Debonding Instrument used for Ceramic, Composite and Metallic Brackets – An Invitro Study [PDF]
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
Thirring sine-Gordon relationship by canonical methods [PDF]
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
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The Moments of the Hydrogen Atom by the Method of Brackets [PDF]
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
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
Deformation Quantization of Nambu Mechanics [PDF]
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
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Real sector of the nonminimally coupled scalar field to self-dual gravity [PDF]
A scalar field nonminimally coupled to gravity is studied in the canonical framework, using self-dual variables. The corresponding constraints are first class and polynomial.
Montesinos, M. +3 more
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Judging the Intersection of Convex Polygons by Bracket Method [PDF]
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
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