Results 61 to 70 of about 2,133 (254)

Evaluation of working length determination methods: An in vivo / ex vivo study

Indian Journal of Dental Research, 2007
This comparative study was done to determine the accuracy in measuring the working length of root canal using tactile method, electronic apex locator and radiographic method, in viv o, and comparing the lengths so measured to the actual working length,
Shanmugaraj Muthu, Nivedha Rajendran, Mathan Rajan, Balagopal Sundaresan   +3 more
doaj  

The usefulness of ultrasonography as a dynamic measurement system for visualizing root canal working length: an in vivo study

BMC Oral Health
Objective Although apex locators are generally effective tools for determining root canal working length, they may produce inaccurate results in some cases.
İrem Eren, Yeşim Deniz
doaj   +1 more source

Effect of time on electronic working length determination with a novel endodontic module in preclinical endodontic training

Saudi Journal of Medicine and Medical Sciences, 2014
Aim: To evaluate electrical conductivity of the medium provided with ModuPRO endodontic modules, and compare it with those of alginate and vinyl polysiloxane impression materials over varying time intervals. Materials and Methods: A 24 Real Endo-t teeth
Emad O AlShwaimi, Udaya B Narayanaraopeta   +1 more
doaj   +1 more source

Resolving the Structural Duality of Graphene Grain Boundaries

Advanced Materials, EarlyView.
Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo, Emiliano Ventura‐Macías, Mariano D. Jiménez‐Sánchez, Nicoleta Nicoara, Pierre Mallet, Jean‐Yves Veuillen, Vincent T. Renard, Antonio J. Martínez‐Galera, Pablo Pou, Julio Gómez‐Herrero, Rubén Pérez, Iván Brihuega   +11 more
wiley   +1 more source

The accuracy of Root ZX electronic apex locator

Saudi Endodontic Journal, 2012
The aim of this review was to evaluate studies assessing the accuracy of Root ZX when used for working length determination in permanent teeth and to identify factors affecting the device′s precision.
Osama S Alothmani
doaj   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

Advanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil, Celia Castillo‐Blas, Dawid Krystian Feler, Isabel Gómez‐Recio, Miguel Tinoco, Ana Querejeta‐Fernández, Rodrigo González‐Prieto, Felipe Gándara, Romualdo Santos Silva Jr, Pilar Ferrer, Carlos Prieto, Luc Lajaunie, José Luis Martinez‐Peña, María Luisa Ruiz‐González, José María González‐Calbet   +14 more
wiley   +1 more source

Comparison of the accuracy of NovApex apex locator and radiographic method: in vivo/ex vivo study

Iranian Endodontic Journal, 2011
INTRODUCTION: Determination of the canal working length with radiographs has many drawbacks. Electronic apex locators have been developed to overcome some of these problems. Recently, a newly designed apex locator called NovApex has been introduced.
Shahriar Shahi, Saeed Rahimi, Amin Salem Milani, Mohammad Asghari Jafarabadi, Gholam Reza Djoorabbaf Naghsh   +4 more
doaj  

A Cu‐Based Near‐IR Active MOF with an Ion‐Pair Guest Exhibiting Versatile and Selective Gas‐Solid Reactivity

Advanced Materials, EarlyView.
The new Cu‐containing MOF (Me2NH2)(CuICl2)@[Cu4(INA)4Cl2O]·1.5dmf (3) contains a cation and an anion as guests and shows UV‐near‐mid‐IR absorption and near‐IR emission. MOF 3 shows gas‐solid reactivity in the presence of NH3 and HCOOH to yield two new 3D MOF.
Rajat Saha, Alejandro Cortés‐Villena, Silvia Gómez‐Coca, Alberto Fernández‐Alarcón, Joaquín Calbo, Raquel E. Galian, Enrique Ortí, Eliseo Ruiz, Mónica Giménez‐Marqués, Samia Benmansour, Carlos J. Gómez‐García   +10 more
wiley   +1 more source

An in vivo comparative evaluation to determine the accuracy of working length between radiographic and electronic apex locators

Indian Journal of Dental Research, 2012
Background: An in vivo comparative evaluation to determine the accuracy of working length between radiographic and electronic apex locators. Aim: The study was aimed at evaluating the accuracy of electronic apex locator, to determine the working length ...
S Vijay Singh, Vineeta Nikhil, Aruna Vijay Singh, Suman Yadav   +3 more
doaj   +1 more source

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

Advanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab, Jack F. Murphy, Michael Bartolf‐Kopp, Jenny C‐C Hsin, Alice Chernaik, Frank McCaughan, Yan Yan Shery Huang, Tomasz Jungst, Jürgen Groll   +8 more
wiley   +1 more source