Results 141 to 150 of about 59,548 (352)

Evaluation of apical seal and tubular penetration of a novel bioactive glass sealer, bioceramic sealer and resin–based sealer: an In-Vitro study

Эндодонтия Today
INTRODUCTION. The majority of endodontic failures are caused primarily by inadequate sealing of the root canal. Seepage of fluids is likely to occur if apical seal is not properly established.AIM.
M. Bilal, S. Pasha, S. Kumar, S. Arif, S. Taj, A. Saleem   +5 more
doaj   +1 more source

Physical Properties of A New Hydroxyapatite-Based Endodontic Sealer Containing Silicon and Strontium Ions

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, 2021
BACKGROUND AND OBJECTIVE: Producing a new sealer using local technology helps to produce dental materials with ideal properties in the country and at a lower cost.
M Javidi, M Zarei, M Gharechahi, H Bagheri, R Yozbashizadeh   +4 more
doaj  

Active Antenna for the VLF to HF Observer [PDF]

A simple and low cost method of fabricating an active antenna preamplifier system covering the range of 10 KHz to 10 MHz for use with tunable communications receivers is described.
Burhans, R. W.
core   +1 more source

Analisis Kelayakan Usaha Dengan Penambahan Alat Hand Sealer Di PT Bihun Tani Palembang [PDF]

, 2014
PT Bihun Tani is a firm which is focused in producing rice vercimelli or known as rice noodle. On a system part of packaging is often happened “stackings”, it is caused by the system of glueing which does not work very well. Glueing the rice noodle still
., Natalia
core  

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

Advanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa, Sarah A. Martell, Berthold Reis, Simona Schwarz, Mita Dasog   +4 more
wiley   +1 more source

Investigation of the Effects of Root Canal Filling Materials and Techniques on Residual Material After Retreatment: an in Vitro Comparative Evaluation

Current Research in Dental Sciences
Objective: The aim of this study was to compare the removal of gutta percha and root canal sealer after retreatment in teeth obturated with two different root canal sealer and two different placement techniques.Methods: Forty-eight extracted maxillary ...
Sevda Tok, Ahmet Çetinkaya, Leyla Ayranci   +2 more
doaj   +1 more source

In vitro evaluation of the antibacterial effects of AH26 combined with two different antibiotics on Enterococcus faecalis [PDF]

, 2014
Introduction: To prevent growth of residual bacteria, it has been proposed that sealers and filling materials should have antibacterial properties.
Moosavinasab, Nima., Ranjbarian, Parisa., Tahmoorespoor, Arezoo., Zare Jahromi, Maryam.   +3 more
core  

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source

Enlgish and Spanish Terms for Concrete Paving Workers, November 2004 [PDF]

, 2004
Proper storage practices are critical to protect materials from intermingling, contamination, or degradation, and to maintain consistent aggregate gradation throughout a project. Concrete Paving Workforce Reference no.4.

core  

Exploiting the Functionality of Cerium Oxide‐Modified Carbon Nanohorns Catalysts Toward Enhanced CO2 Reduction Performance

Advanced Functional Materials, EarlyView.
A cerium oxide‐carbon nanohybrid catalyst is synthesized via two distinct routes and is integrated into H‐type cells and gas diffusion layers (GDLs) to enhance electrochemical performance. Structural variations significantly affect performance, with the solvothermal sample exhibiting higher current densities.
Alessia Pollice, Michele Cacioppo, Miriam Marchi, Miriam Moro, Francesco Paolucci, Marcella Bonchio, Maurizio Prato, Giovanni Valenti, Michele Melchionna, Paolo Fornasiero   +9 more
wiley   +1 more source