Results 121 to 130 of about 202,264 (382)

Effect of Oral Tissue Fluids on Compressive Strength of MTA and Biodentine: An In vitro Study.

Journal of clinical and diagnostic research : JCDR, 2017
INTRODUCTION Over the past many years various root end filling materials have been used which have been tested for their physical properties but each of them had certain limitations.
D. Subramanyam, M. Vasantharajan
semanticscholar   +1 more source

Synthesis of Dithienylcycloalkene Molecular Switches Enabled by a Bench‐Stable Ti‐Complex

Chemistry – A European Journal, EarlyView.
Herein we report a set of cycloalkene‐bridged DTEs with ring sizes ranging from 4‐ to 7‐membered rings. The synthesis of these analogs was performed via a key McMurry coupling step, which was enabled by a practical, bench‐stable Ti(IV)‐complex. Remarkably, it is shown that the strained cyclobutene bridge outperforms other rings, even the most commonly ...
Marcell M. Bogner, Márton Hegedűs, Péter P. Kalapos, Attila Kunfi, Gábor London   +4 more
wiley   +1 more source

Study of two MTA cements

Medicina Oral Patología Oral y Cirugia Bucal, 2014
To determine and compare the pH, conductivity and calcium release of an experimental Portland cement (PE) consisting of trioxid mineral aggregate and a comercially available modified Portland cement (C.P.M.) after 1, 2, 3, 4, 8, 10, 15 and 30 days.Cements were mixed following the manufacturer's instructions, with a powder: liquid ratio of 3:1.
Berástegui, Esther, Valmaseda Castellón, Eduardo, Faus, Vicente, Ballester Palacios, M. L. (Maria Lluïsa), Berini Aytés, Leonardo   +4 more
openaire   +3 more sources

Push-out bond strength of MTA HP, a new high-plasticity calcium silicate-based cement.

Brazilian Oral Research, 2016
This study was designed to investigate the resistance to dislodgment provided by MTA HP, a new high-plasticity calcium silicate-based cement. Biodentine and White MTA Angelus were used as reference materials for comparison.
E. J. Silva, Nancy Kudsi Carvalho, M. Zanon, P. Senna, G. De‐Deus, M. Zuolo, A. Zaia   +6 more
semanticscholar   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

Deep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh, Tonni Agustiono Kurniawan, Christia Meidiana, Abdelkader Anouzla, Faissal Aziz, Imran Ali, Joan Cecilia C. Casila, M. Imran Khan, Dongdong Zhang, Meihui Jiang, Mohd Hafiz Dzarfan Othman, Md Munir Hayet Khan, Kasun Kumara Dissanayake   +12 more
wiley   +1 more source

Biocompatibility of Hydraulic Calcium Silicate-Based Cement MTA Flow^TM on Human Dental Pulp Stem Cells In Vitro

Journal of Functional Biomaterials
Aim: hydraulic calcium silicate-based cements (HCSCs) are widely used in endodontics for vital pulp therapy and other clinical procedures due to their favorable physicochemical and biological properties.
Paulius Tušas, Josette Camilleri, Milda Alksnė, Egidijus Šimoliūnas, Saulius Drukteinis, Eglė Marija Urbonė, Virginija Bukelskienė, Vygandas Rutkūnas, Vytautė Pečiulienė   +8 more
doaj   +1 more source

Minimal tau approximation and simulations of the alpha effect

, 2005
The validity of a closure called the minimal tau approximation (MTA), is tested in the context of dynamo theory, wherein triple correlations are assumed to provide relaxation of the turbulent electromotive force. Under MTA, the alpha effect in mean field
A. Brandenburg, André, Blackman, Blackman, Blackman, Blackman, Borue, Brandenburg, Brandenburg, Brandenburg, Brandenburg, Brandenburg, Brandenburg, Cattaneo, Ditlevsen, Field, Gruzinov, Haugen, Ho, K. Subramanian, Keinigs, Kitchatinov, Kitchatinov, Kleeorin, Kleeorin, Kleeorin, Kleeorin, Kleeorin, Käpyla, Mininni, Moffatt, Montgomery, Montgomery, Pouquet, Rogachevskii, Rogachevskii, Rädler, Rüdiger, Rüdiger, Subramanian, Subramanian, Vainshtein, Vishniac, Yousef   +43 more
core   +3 more sources

Deconvolution of the particle size distribution of ProRoot MTA and MTA Angelus

Acta Biomaterialia Odontologica Scandinavica, 2016
Objective Mineral trioxide aggregate (MTA) cements contain two types of particles, namely Portland cement (PC) (nominally 80% w/w) and bismuth oxide (BO) (20%). This study aims to determine the particle size distribution (PSD) of PC and BO found in MTA. Materials and methods The PSDs of ProRoot MTA (MTA-P) and MTA Angelus (MTA-A) powder were determined
Ha, William Nguyen, Shakibaie, Fardad, Kahler, Bill, Walsh, Laurence James   +3 more
openaire   +4 more sources

Metabolic changes during cardiac regeneration in the axolotl

Developmental Dynamics, EarlyView.
Abstract Background The axolotl is a prominent model organism of heart regeneration due to its ability to anatomically and functionally repair the heart after an injury that mimics human myocardial infarction. In humans, such an injury leads to permanent scarring. Cardiac regeneration has been linked to metabolism and the oxygenation state, but so far,
Anita Dittrich, Sofie Amalie Andersson, Morten Busk, Kasper Hansen, Casper Bindzus Foldager, Johan Palmfeldt, Asger Andersen, Michael Pedersen, Mikkel Vendelbo, Kirstine Lykke Nielsen, Henrik Lauridsen   +10 more
wiley   +1 more source

Interaction of dental pulp stem cells with Biodentine and MTA after exposure to different environments

Journal of Applied Oral Science, 2016
Objective: The aim of the present study was to evaluate and compare the cytotoxic effects of Biodentine and MTA on dental pulp stem cells (DPSCs) and to assess cell viability and adherence after material exposure to an acidic environment.
A. Agrafioti, V. Taraslia, V. Chrepa, S. Lymperi, P. Panopoulos, E. Anastasiadou, E. Kontakiotis   +6 more
semanticscholar   +1 more source