Results 1 to 10 of about 4,034 (310)

Effect of different fixed lingual retainers on tooth mobility: prospective clinical study [PDF]

open access: yesActa Odontologica Scandinavica
Objective: The aim of this study was to compare the effects of different fixed lingual retainers (LRs) on tooth mobility after orthodontic treatment at the 10-month follow-up.
Eyüp Burak Küçük   +3 more
doaj   +2 more sources

Evaluation of the Shear Bond Strength of Three Types of Retainer Wires Bonded with a Composite Adhesive: An in vitro Study

open access: yesJournal of Pharmacy and Bioallied Sciences
Background and Objectives: Posttreatment tooth movement, or relapse, is a common challenge in orthodontics. Bonded retainers are widely used to preserve corrected tooth positions.
N Harish Kumar   +5 more
doaj   +2 more sources

The braid group injects in the virtual braid group [PDF]

open access: green, 2020
The virtual braid groups are generalizations of the classical braid groups. This paper gives an elementary proof that the classical braid group injects into the virtual braid group over the same number of strands.
Robin Gaudreau
openalex   +3 more sources

Retraction of Braid and Braid Group

open access: diamondAsian Journal of Algebra, 2007
M. El-Ghoul, Mohammed M. Ali Al-Shamiri
openalex   +2 more sources

On Efficient Presentations of the Groups PSL $(2, m)$ [PDF]

open access: yesInternational Journal of Group Theory, 2022
We exhibit presentations of the Von Dyck groups $D(2, 3, m), \ m\ge 3$, in terms of two generators of order $m$ satisfying three relations, one of which is Artin's braid relation. By dropping the relation which fixes the order of the generators we obtain
Orlin Stoytchev
doaj   +1 more source

Higher Braid Groups and Regular Semigroups from Polyadic-Binary Correspondence

open access: yesMathematics, 2021
In this note, we first consider a ternary matrix group related to the von Neumann regular semigroups and to the Artin braid group (in an algebraic way).
Steven Duplij
doaj   +1 more source

The Burau representations of loop braid groups

open access: yesComptes Rendus. Mathématique, 2022
We give a simple topological construction of the Burau representations of the loop braid groups. There are four versions: defined either on the non-extended or extended loop braid groups, and in each case there is an unreduced and a reduced version ...
Palmer, Martin, Soulié, Arthur
doaj   +1 more source

Key agreement protocol in Braid group representation level

open access: yesLietuvos Matematikos Rinkinys, 2021
In this paper the key agreement protocol is given and the applicationof it in Braid groups is suggested. The one way of protocol is being justified.
Povilas Tvarijonas   +2 more
doaj   +1 more source

Effect of Er: YAG Laser Enamel-etching and Sandblasting on the Bond Strength of Fixed Lingual Retainers [PDF]

open access: yesIranian Journal of Orthodontics, 2022
Aim: This study aims to compare the shear bond strength (SBS) of different combinations of retainer wires and enamel preparation methods.Methods: A total of 180 extracted mandibular bovine incisors were randomly divided into nine groups of 20 paired ...
Mahdjoube Goldani Moghadam   +2 more
doaj   +1 more source

On groups Gnk and Γnk: A study of manifolds, dynamics, and invariants

open access: yesBulletin of Mathematical Sciences, 2021
Recently, the first named author defined a 2-parametric family of groups Gnk [V. O. Manturov, Non–reidemeister knot theory and its applications in dynamical systems, geometry and topology, preprint (2015), arXiv:1501.05208].
Vassily O. Manturov   +3 more
doaj   +1 more source

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