Results 81 to 90 of about 2,360,658 (324)

The antibacterial activity of three endodontic sealers against Enterococcus faecalis in vitro [PDF]

, 2014
Conventional root canal therapy consists of chemo-mechanical treatment of the root canal to eliminate the microbial infection. The root canal is obturated with a root filling, which normally consists of a core and an endodontic sealer. The purpose of the
Riaz, Fiza
core  

Preparation of a New Endodontics Sealer and Comparison of its Sealing Ability with Commercial AH Plus Sealer

Open Dentistry Journal
This study aims to produce and evaluate the sealing ability of a novel endodontic sealer with conventional AH Plus sealer. Some materials in powder form were mixed in different percentages by spatulating method in 5 separate groups (A, B, C, D,
S. Shahi, Ehsan Moslemi, Majid Yaltaghiyani, Danial Haghighi, S. Dizaj, Simin Sharifi   +5 more
semanticscholar   +1 more source

An Inkjet‐Printed Platinum‐Based Temperature Sensing Element on Polyimide Substrates

Advanced Engineering Materials, EarlyView.
An inkjet‐printed, meander‐structured, nanoparticle platinum‐based resistive temperature sensors on polyimide substrates are demonstrated as proof‐of‐concept. Optimized sintering at 250°C enables stable conductive structures. The Pt100‐ and Pt1000‐type sensors exhibit linear resistance–temperature characteristics with stable TCR in the 20°C–80°C range,
Shawon Alam, Thomas Kister, Alexander Scholz, Sophie Sauva, Makara Lay, Tobias Kraus, Jasmin Aghassi‐Hagmann   +6 more
wiley   +1 more source

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

Micro-Computed Tomography Analysis of Resin and Calcium Silicate Based Sealers Removal in Mandibular Molars Curved Canals

Acta Stomatologica Croatica
Objective: The removal of the root canal sealer is an important factor in nonsurgical retreatment. The aim of this study was to compare the removal of AH Plus, Well Root ST, and AH Plus Bioceramic Sealer using Protaper Universal retreatment files ...
Arda Buyuksungur, Aysenur Oncu, Mehrdad Koohnavard, Berkan Celikten, Emine Odabasi Tezer, Yan Huang, Kaan Orhan   +6 more
doaj   +1 more source

Evaluation of softening ability of Xylene & Endosolv-R on three different epoxy resin based sealers within 1 to 2 minutes - an in vitro study

Restorative Dentistry & Endodontics, 2014
Objectives This study evaluated the efficacy of Endosolv-R and Xylene in softening epoxy resin based sealer after 1 to 2 min exposure. Materials and Methods Sixty Teflon molds (6 mm × 1.5 mm in inner diameter and depth) were equally divided into 3 ...
Pratima Ramakrishna Shenoi, Gautam Pyarelal Badole, Rajiv Tarachand Khode   +2 more
doaj   +1 more source

Block Tridiagonal Reduction of Perturbed Normal and Rank Structured Matrices [PDF]

, 2013
It is well known that if a matrix $A\in\mathbb C^{n\times n}$ solves the matrix equation $f(A,A^H)=0$, where $f(x, y)$ is a linear bivariate polynomial, then $A$ is normal; $A$ and $A^H$ can be simultaneously reduced in a finite number of operations to ...
Bevilacqua, Roberto, Del Corso, Gianna M., Gemignani, Luca   +2 more
core   +3 more sources

4D Mapping of ZIF Biocomposites for High Protein Loading and Tunable Release Profiles

Advanced Functional Materials, EarlyView.
Systematic four‐dimensional mapping of zeolitic imidazolate framework biocomposites reveals how precursor ratios, total concentration, and washing define crystalline phase, protein loading, and release kinetics. This comprehensive study identifies conditions yielding record loading (∼85%) and precise phase–property correlations.
Michael R. Hafner, Francesco Carraro, Behnaz Abbasgholi‐NA, Simone Dal Zilio, Max Schmallegger, Helmar Wiltsche, Lingcong Ge, Michael R. Reithofer, Efwita Astria, Laura Villanova, Heinz Amenitsch, Christian Doonan, Paolo Falcaro   +12 more
wiley   +1 more source

Comparative study of the apical microleakage of three root canal sealers

Iranian Endodontic Journal, 2011
Introduction: The aim of this study was to examine and compare the apical sealing ability of AH26, AH plus and AH plus Jet using a fluid filtration model.
Hengameh Akhavan, Anahid Ahmadi, Peyman Mehrvarzfar, Anahid Ahmadi Birjandi   +3 more
doaj  

Microleakage of Different Root Canal Obturation Techniques [PDF]

, 2005
Za ispitivanje propusnosti rabljena je konstrukcija za prijenos tekućine u kojoj se pomakom zračnoga mjehurića mjerila propusnost korijenskih kanala punjenih tehnikama hladne lateralne kondenzacije, Touch\u27n Heat-a i Thermafil tehnike.
Ivana Miletić, Nevena Devčić, Sanja Šegović, Sonja Pezelj-Ribarić   +3 more
core