Results 51 to 60 of about 1,819,422 (278)

Programmable Variable‐Stiffness Multilayer Elastomer Composites With High‐Aspect‐Ratio Low‐Melting‐Point Alloy Inclusions

Advanced Materials Technologies, EarlyView.
High‐aspect‐ratio low‐melting‐point alloy inclusions are embedded within multilayer silicone laminates to create thermally programmable stiffness. Sequential activation of alloy‐rich layers produces four distinct mechanical states and reconfigures tendon‐driven actuator trajectories under the same load.
Palpolage Don Shehan Hiroshan Gunawardane, Gyan Edbert Zesiro, Hao Zhou, Gursel Alici, Mu Chiao   +4 more
wiley   +1 more source

Air-powder polishing on self-ligating brackets after clinical use: effects on debris levels

Dental Press Journal of Orthodontics
Introduction: Debris buildup on brackets and arch surfaces is one of the main factors that can influence the intensity of friction between bracket and orthodontic wire.
Mônica L. S. Castro Aragón, Leandro Santiago Lima, David Normando   +2 more
doaj   +1 more source

Considerations on the corrosion of orthodontic metallic brackets

Romanian Journal of Stomatology, 2015
The effectiveness of medical treatments depends on thorough knowledge of materials and techniques used. This is especially important in dentistry due to rich blood supply and the importance of the area in the patient’s psyche. Corrosion resistance is an important feature of all metal appliances used in dental care.
Ionuţ-Cornel Ionescu, Ecaterina Ionescu
openaire   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik, Fedor Kovalev, Mingkai Liu, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Mariusz Martyniuk, Ilya Shadrivov   +7 more
wiley   +1 more source

Percentage of patients shifting to another treatment modality: An experience-guided decision

Dental Press Journal of Orthodontics
Objective: This study aimed to assess the frequency with which orthodontic patients decided to shift to another type of orthodontic appliance, among conventional metal brackets, ceramic brackets, lingual brackets and clear aligner, based on their ...
Shivangi KUMARI, Manish GOYAL, Mukesh KUMAR, Mannu KHANNA, Ekta YADAV, Tanisha SINGH   +5 more
doaj   +1 more source

Chlorhexidine Antimicrobial Activity in Self-ligating and Conventional Orthodontic Brackets Infected with Porphyromonas gingivalis Biofilm [PDF]

Iranian Journal of Chemistry & Chemical Engineering
The present study was conducted to evaluate the adhesion of Porphyromonas gingivalis (P. gingivalis) biofilms formed on Self-Ligating (SL) and Conventional-Ligating (CL) brackets and their bacterial viability after treatment with 0.12% chlorhexidine (CHX)
Marzie Kachuie, Narges Naghsh, Neda Dehnavi, Tahmineh Narimani   +3 more
doaj   +1 more source

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

Advanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds, Donan Satria Yudha, Parvez Alam   +2 more
wiley   +1 more source

Influence of ligation method on friction resistance of lingual brackets with different second-order angulations: an in vitro study

Dental Press Journal of Orthodontics
Objective: To evaluate stainless steel archwire static friction in active and passive self-ligating lingual and conventional brackets with second-order angulations. Methods: Two conventional lingual brackets for canines (STb light/Ormco; PSWb/Tecnident)
Graziane Olímpio Pereira, Carla Maria Melleiro Gimenez, Lucas Prieto, Marcos Gabriel do Lago Prieto, Roberta Tarkany Basting   +4 more
doaj   +1 more source

The Shear Bond Strengths of Metal and Ceramic Brackets: An in-Vitro Comparative Study

, 2020
Aim: This study has compared the Shear Bond Strengths (SBSs) of ceramic brackets and metal brackets. Materials and Method: Forty freshly extracted, human maxillary first premolars were selected for bonding. They were equally bonded with ceramic brackets (
Ammandeep Singh, Saurab Chaturvedi, Rohit Sharma, Vishal Agrawal, Vijay Agrawal, Y G Reddy   +5 more
core  

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

Advanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff, Simon Holzer, Stefania Konstantinidi, Yoan Civet, Yves Perriard   +4 more
wiley   +1 more source