Results 41 to 50 of about 24,428 (269)

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

open access: yesAdvanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias   +4 more
wiley   +1 more source

The effect of die spacer on retention and fitting of complete cast crowns

open access: yesJournal of Craniomaxillofacial Research, 2022
Purpose: Loss of the bracket-tooth bond is one of the most common complaints of patients during orthodontic treatment. Various factors play a role in preventing the loss of such a strong bond between the bracket and tooth, one of which is the ...
Mohammad Reza Hajimahmoudi   +3 more
doaj  

Development and experimental validation of an overlay mortar with biocide activity [PDF]

open access: yes, 2016
Biodeterioration of concrete by microorganism colonisation may be a problem in several structures, especially in irrigation and hydroelectric canals.
Aguado de Cea, Antonio   +4 more
core   +2 more sources

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

open access: yesAdvanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon   +10 more
wiley   +1 more source

Cement selection for fixing implant restorations [PDF]

open access: yesStomatološki glasnik Srbije, 2019
Introduction When intraocclusal space is long enough, and patient has high aesthetic demands, cementing implant restoration is the proper choice. The aim of this study was to assess retentive forces of different cements used for fixing restoration to ...
Stamenković Dejan   +1 more
doaj  

Effect of Cement Type and Thickness at the Marginal Area on Stress Distribution in Monolithic Zirconia Crowns: A Finite Element Analysis [PDF]

open access: yesJournal of Mashhad Dental School
Background: Monolithic zirconia crowns are used for restoring aesthetics and function in the dentition. However, the stress distribution pattern in these crowns remains relatively understudied.
Parviz Amini   +4 more
doaj   +1 more source

Retention of Implant Supported Metal Crowns Cemented with Different Luting Agents: A Comparative Invitro Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2016
Introduction: To overcome limitations of screw-retained prostheses, cement-retained prostheses have become the restoration of choice now a days. Selection of the cement hence becomes very critical to maintain retrievability of the prostheses.
Roohi Kapoor   +3 more
doaj   +1 more source

Assessment of in situ immobilization of Lead (Pb) and Arsenic (As) in contaminated soils with phosphate and iron: solubility and bioaccessibility [PDF]

open access: yes, 2010
The effect of in situ immobilization of lead (Pb) and arsenic (As) in soil with respectively phosphate and iron is well recognized. However, studies on combined Pb and As-contaminated soil are fewer, and assessment of the effectiveness of the ...
Cui, Y.S.   +3 more
core   +2 more sources

Magnetically Responsive Piezoelectric Nanocapacitors Enhance Neural Recovery Following Spinal Cord Injury via Targeted Spinal Magnetic Stimulation

open access: yesAdvanced Science, EarlyView.
This study presents a novel “in vivo–in vitro” therapeutic strategy for spinal cord injury by leveraging magnetically responsive piezoelectric nanomaterials. These nanomaterials enable targeted delivery of localized electrical stimulation at the injury site through noninvasive external magnetic actuation, thereby promoting axonal regeneration and ...
Zhihang Xiao   +9 more
wiley   +1 more source

Retention Of Long-Term Interim Restorations With Sodium Fluoride Enriched Interim Cement [PDF]

open access: yes, 2013
Purpose: Interim fixed dental prostheses, or provisional restorations , are fabricated to restore teeth when definitive prostheses are made indirectly.
Strash, Carolyn
core   +1 more source

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