Results 31 to 40 of about 738,511 (305)

Maxillary Arch Dimensional Changes in the Extraction and Non Extraction Orthodontic Treatment [PDF]

open access: yesAl-Rafidain Dental Journal, 2008
Aims:To investigate whether extraction status and gender had any significant influence on the maxillaryarch dimensions. Materials and Methods: A sample of 40 orthodontic patients (20 extraction and20 non extraction) were included in this study. Males and
Nada M Al–Sayagh
doaj   +1 more source

Effects of toe length, foot arch length and toe joint axis on walking biomechanics

open access: yesHuman Movement Science, 2020
Toe joint articulation has been shown to affect gait mechanics, as evidenced by walking simulations, biped robots, and foot prostheses. However, it is not known how parameters such as toe length, foot arch length (i.e., heel-to-toe-joint length) or toe joint axis angle affect human walking.
Eric C, Honert   +2 more
openaire   +3 more sources

Temporal evolution of arch filaments as seen in He I 10830 \r{A}

open access: yes, 2018
We study the evolution of an arch filament system (AFS) and of its individual arch filaments to learn about the processes occurring in them. We observed the AFS at the GREGOR solar telescope on Tenerife at high cadence with the very fast spectroscopic ...
Balthasar, H.   +9 more
core   +1 more source

Validity of a Wearable Digital Insole for Assessing Gait ON and OFF in Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Gait impairment is a distinctive symptom of Parkinson's disease that negatively impact mobility. We assessed the validity of wearable digital insoles against a validated reference gait analysis system for measuring select gait characteristics in patients with Parkinson's disease. Methods A comparative analysis between digital insoles
Deborah A. Hall   +16 more
wiley   +1 more source

An Investıgatıon Of Profıle Changes In Angle Class I Anomalıes Treated Wıth Extractıon And Nonextractıon

open access: yesTurkish Journal of Orthodontics, 1995
In this study, soft and hard tissue profile changes in Angle Class I cases with arch length discrepancy treated with four premolars extractions and without extraction by edgewise technique were investigated.
Elif Erbay, Mustafa Ülgen
doaj   +1 more source

Deployable Arches Based on Regular Polygon Geometry [PDF]

open access: yes, 2017
This paper discusses a deployable-arch-structure design that is built using articulated bars, commonly called a scissor-system, and is based on the regular polygon geometry.
Peña Villamil, Diana Maritza   +1 more
core   +1 more source

Cryo-EM of full-length α-synuclein reveals fibril polymorphs with a common structural kernel. [PDF]

open access: yes, 2018
α-Synuclein (aSyn) fibrillar polymorphs have distinct in vitro and in vivo seeding activities, contributing differently to synucleinopathies. Despite numerous prior attempts, how polymorphic aSyn fibrils differ in atomic structure remains elusive.
Boyer, David R   +12 more
core   +2 more sources

Effect of Foot Orthoses on Midfoot Pain and the Volume of Bone Marrow Lesions in the Midfoot: A Randomized Mechanism of Action Study

open access: yesArthritis Care &Research, EarlyView.
Objective Foot orthoses are thought to improve pain by potentially modifying internal mechanical forces. To test this, we explored whether foot orthoses can modify patterns of bone marrow lesions (BMLs) in people with midfoot pain. Methods Forty‐two people were recruited with midfoot pain, and magnetic resonance imaging–confirmed midfoot BMLs ...
Jill Halstead   +4 more
wiley   +1 more source

Comparison of arch length and width in the angle Class II malocclusion with extraction and non-extraction in the Dental Hospital Universitas Airlangga

open access: yesIndonesian Journal of Dental Medicine
Background: Depending on the disparity seen, orthodontic treatments frequently take into account the possibility of tooth extraction or non-extraction.
Thalca Hamid   +2 more
doaj   +1 more source

Effects of upper arch expansion using clear aligners on different stride and torque: a three-dimensional finite element analysis

open access: yesBMC Oral Health, 2023
Background During maxillary arch expansion with a clear aligner (CA), buccal tipping of the posterior teeth often occurs, resulting in an unsatisfactory arch expansion effect.
Yanqi Zhang   +3 more
doaj   +1 more source

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