Results 61 to 70 of about 103,535 (351)

Quantification of three-dimensional orthodontic force systems of T-loop archwires [PDF]

open access: yes, 2010
Objective: To demonstrate the three-dimensional (3D) orthodontic force systems of three commercial closing T-loop archwires using a new method and to quantify the force systems of the T-loop archwires.
Brizendine, Edward J.   +2 more
core   +1 more source

Lysosome‐Featured Cell Aggregate‐Released Extracellular Vesicles Regulate Iron Homeostasis and Alleviate Post‐Irradiation Endothelial Ferroptosis for Mandibular Regeneration

open access: yesAdvanced Science, EarlyView.
Lysosomal redistribution occurs via extracellular vesicles in multi‐stem cell aggregates and controls iron homeostasis for safeguarding cell aggregation. These cell aggregate‐released extracellular vesicles (CA‐EVs) rescue lysosomal impairments and exert anti‐ferroptosis effects in recipient irradiated endothelial cells.
Yuan‐Yuan Li   +20 more
wiley   +1 more source

Effects of contemporary orthodontic composites on tooth color following short-term fixed orthodontic treatment: A controlled clinical study [PDF]

open access: yes, 2015
Background/aim: To determine the color alterations of natural teeth associated with different orthodontic composites used in comprehensive short-term treatment.
Malkoç, S.   +4 more
core   +1 more source

Adipose Tissue Macrophages as Initiators of Exacerbated Periodontitis in Estrogen‐Deficient Environments via the Amplifier Extracellular Vesicles

open access: yesAdvanced Science, EarlyView.
Chronic systemic inflammation, worsened by estrogen deficiency, underlies and exacerbates periodontitis. Proinflammatory macrophages within visceral adipose tissue are hyperactivated due to hyper‐DNA methylation, releasing small extracellular vesicles (sEVs) similar to those of their parent cells.
Danfeng Li   +6 more
wiley   +1 more source

Effect of Heat-Treatment Time on Bending Properties of Cobolt-Chromium Orthodontic Wires [PDF]

open access: yes, 2019
Different protocols appear in the literature with respect to heat-treating cobalt-chromium orthodontic wires. The objective was to determine the effect of variable heat-treatment time and method on the bending properties of CoCr wires.
Hammerbeck, Melanie
core   +1 more source

Mechanics and Mathematical Modeling of Class III Treatment with Orthodontic Appliances with a Movable Ramp [PDF]

open access: yes, 2016
Treatment of class III is a current problem in orthodontics that requires constant improvement of its methods, development of new or modifications of known methods and techniques.
Doroshenko, N. (Nataliia)   +4 more
core   +2 more sources

CGRP‐Loaded ROS‐Responsive Hydrogel Restores Neuro‐Angiogenic Signaling to Promote Bone Regeneration in Diabetes‐Associated Periodontitis

open access: yesAdvanced Science, EarlyView.
This study shows that diabetes damages sensory nerve fibers, especially CGRP‐positive ones, in the periodontium and disrupts autophagy in trigeminal ganglion neurons, affecting bone homeostasis by inhibiting type H vessel formation. To address this, CGRP@PVA/tsPBA hydrogels are developed to release CGRP in response to ROS, which binds to endothelial ...
Chaoning Zhan   +7 more
wiley   +1 more source

Directed Self‐Assembly of Magnetic Bioceramic Deep Inside Dentinal Tubules May Alleviate Dental Hypersensitivity

open access: yesAdvanced Science, EarlyView.
Magnetically guided bioceramic nanoparticles (“CalBots”) achieve deep dentinal tubule occlusion via directed self‐assembly under externally applied magnetic field. Various visualization techniques and a novel mouse behavioral assay indicate that CalBot‐induced plugs may reduce dentinal sensitivity, offering a promising strategy for future dentin ...
Shanmukh Peddi   +6 more
wiley   +1 more source

Relación entre el motivo de consulta ortodóncico, el diagnóstico clínico de la maloclusión y el grado de satisfacción postratamiento* parte I: motivo de consulta

open access: yesRevista Facultad de Odontología Universidad de Antioquia, 1998
This study was conducted among 250 males and females new patients to identify tne main reasons they had to ask far orthodontics treatment in four dental institutions of Medellin city; likewise, the relation with the clinical malocclusion diagnostic.
Raúl Mejía-Villa   +2 more
doaj  

Comparative anchorage maintenance between the intercanine coil, lip bumper, and mandibular cervical traction during cuspid retraction [PDF]

open access: yes, 1972
Thesis (M.Sc.D.)--Boston University School of Graduate Dentistry, 1972 (Orthodontics)Bibliography included.The present study was undertaken to compare the efficiency of three different biomechanical mechanisms in preserving mandibular molar anchorage ...
Iverson, Dennis B.
core  

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