Results 71 to 80 of about 1,143,710 (211)

Recent advances in metallurgy and design of rotary endodontic instruments: a review [PDF]

, 2020
A variety of instruments are available for the extirpation of the pulp and the instrumentation and preparation of the root canal. Recently, nickel-titanium (NiTi) alloy is utilised for the manufacturing of endodontic instruments. Compared to other metals,
Palekar, Aparna, Vajpayee, Akhilesh, Biradar, Basawaraj   +2 more
core   +1 more source

Validated finite element analyses of WaveOne Endodontic Instruments: a comparison between M-Wire and NiTi alloys.

, 2015
AIM: To validate torsional analysis, based on finite elements, of WaveOne instruments against in vitro tests and to model the effects of different nickel-titanium (NiTi) materials. METHODOLOGY: WaveOne reciprocating instruments (Small, Primary and Large,
de Azevedo Bahia, Maria Guiomar, Buono, Vicente Tadeu Lopes, Arias, Ana, Peters, Ove A., Bonessio, Noemi, Pereira, Érika Sales Joviano, Lomiento, Guiseppe, N. Bonessio, E. S. J. Pereira, Pereira, E. S. J., Bahia, M. G. A., V. T. L. Buono, O. A. Peters, Arias, A., Bonessio, N., Peters, O. A., G. Lomiento, Buono, V. T. L., M. G. A. Bahia, A. Arias, Lomiento, G.   +20 more
core   +2 more sources

Seismic Performance of Reduced‐Strength Steel MRFs With SMA‐Based Superelastic Friction Dampers: An Experimental Investigation

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Shape memory alloys (SMAs) exhibit excellent self‐centering capability due to their stress‐induced phase transformation, making them highly suitable for applications in resilient infrastructure. This study investigates the seismic performance of reduced‐strength moment‐resisting frames (MRFs) equipped with SMA‐based superelastic friction ...
Faisal Nissar Malik, Liang Cao, James Ricles, Fei Shi, Chinmoy Kolay, Osman E. Ozbulut   +5 more
wiley   +1 more source

Effects of R-Phase on Mechanical Responses of a Nickel-Titanium Endodontic Instrument: Structural Characterization and Finite Element Analysis

The Scientific World Journal, 2016
The effects of the presence of the R-phase in a near-equiatomic NiTi alloy on the mechanical responses of an endodontic instrument were studied by using finite element analysis. The input data for the constitutive model in the simulation were obtained by
Leandro de Arruda Santos, Pedro Damas Resende, Maria Guiomar de Azevedo Bahia, Vicente Tadeu Lopes Buono   +3 more
doaj   +1 more source

Artificial structures for human‐machine interfaces with closed‐loop interaction

FlexMat, EarlyView.
Artificial structures bridge sensing and feedback in closed‐loop human‐machine interfaces by providing geometry‐enabled mechanical and functional programmability. This review maps the role of artificial structures in diverse sensing modalities and feedback strategies, and illustrates their integration into closed‐loop interaction systems, highlighting ...
Taiqi Hu, Taisong Pan, Siqi Chen, Yiting Zhang, Yuan Lin   +4 more
wiley   +1 more source

Noncontact three-dimensional evaluation of surface alterations and wear in NiTi endodontic instruments

, 2017
The aim of this study was to undertake a qualitative and quantitative assessment of nanoscale alterations and wear on the surfaces of nickel-titanium (NiTi) endodontic instruments, before and after use, through a high-resolution, noncontact, three ...
Miriam Zaccaro SCELZA, Fabiano Guerra FERREIRA, John NEFF, Pantaleo SCELZA, Igor Bastos BARBOSA, Marcello Bulhões MONTAGNANA, Daniel RUSSANO   +6 more
core   +1 more source

Clarifying Public Policy for Stronger Public Administration in Development

Public Administration and Development, EarlyView.
ABSTRACT Public policy is ubiquitous, yet its meaning is often unclear. This ambiguity is not just conceptual. Because policy work is a large part of what public administrations do, how we define policy shapes how we structure and organize our administrative mechanisms.
Matt Andrews
wiley   +1 more source

Industry 5.0 for Sustainable Healthcare Services: Analyzing the Prospects and Obstacles for the Indian Healthcare System

Sustainable Development, EarlyView.
ABSTRACT The fifth industrial revolution (I5.0), which is based on the utilization of interconnected data for efficient resource usage in meeting human requirements, proposes efficient solutions to resource constraint situations. However, the transition to I5.0 in the health sector is not easy and has to face several obstacles.
Ajay Jha, Dindayal Agrawal, Reena Agarwal, Anupam Saxena, Ashish Dwivedi, Sharfuddin Ahmed Khan   +5 more
wiley   +1 more source

Comparison of Single Visit Post Endodontic Pain Using Mtwo Rotary and Hand K-File Instruments: A Randomized Clinical Trial

Frontiers in Dentistry, 2016
Objectives: Pain is an unpleasant outcome of endodontic treatment that can be unbearable to patients. Instrumentation techniques may affect the frequency and intensity of post-endodontic pain. This study aimed to compare single visit post endodontic pain
Mohamad Kashefinejad, Azade Harandi, Saeed Eram, Ali Bijani   +3 more
doaj  

Geometric response of curved mandibular molars to NiTi instrumentation

Bioinformation
Preserving root canal geometry in curved canals remains a major challenge during mechanized NiTi instrumentation. Therefore, it is of interest to evaluate the shaping performance of HyFlex EDM, TruNatomy and XP-Endo Rise in curved mesiobuccal canals using high-resolution micro-computed tomography.
Masreen, Juveria, Badami, Vijetha, Badaka, Bhavana, Waseem, Shaik Mohammad, Sriharsha, Alla, V, Yoshna Sree   +5 more
openaire   +2 more sources