| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Stamboulis, Artemis
Imperial College London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2023A Novel Approach for Powder Bed Fusion of Ceramics Using Two Laser Systemscitations
- 2022Processing and interpretation of core‐electron XPS spectra of complex plasma‐treated polyethylene‐based surfaces using a theoretical peak model
- 2021Antimicrobial bioceramics for biomedical applicationscitations
- 2021An Overview of Sputtering Hydroxyapatite for BiomedicalApplicationcitations
- 2019Mechanical testing of antimicrobial biocomposite coating on metallic medical implants as drug delivery systemcitations
- 2017Types of ceramics: Material classcitations
- 2017Types of ceramics : material class
- 2015Nano-hydroxyapatite deposition on titanium using peptide aptamers
- 2015Functionalization of biomedical surfaces by peptide aptamers
- 2014Electrospun Fibres of Polyhydroxybutyrate Synthesized by Ralstonia eutropha from Different Carbon Sourcescitations
- 2014Electrospun Fibres of Polyhydroxybutyrate Synthesized by Ralstonia eutropha from Different Carbon Sourcescitations
- 2014Use of inter-fibril spaces among electrospun fibrils as ion-fixation and nano-crystallization
- 2014Nanoclay addition to a conventional glass ionomer cementscitations
- 2014Electrospun fibres of polyhydroxybutyrate synthesized by ralstonia eutropha from different carbon sourcescitations
- 2014Effect of nanoclay dispersion on the properties of a commercial glass ionomer cementcitations
- 2013Sol-Gel Preparation of Silica-Based Nano-Fibers for Biomédical Applications
- 2013Active screen plasma nitriding enhances cell attachment to polymer surfacescitations
- 2013Nitrogen plasma surface modification enhances cellular compatibility of aluminosilicate glasscitations
- 2012Durability and reliability of medical polymerscitations
- 2011An X-ray micro-fluorescence study to investigate the distribution of Al, Si, P and Ca ions in the surrounding soft tissue after implantation of a calcium phosphate-mullite ceramic composite in a rabbit animal modelcitations
- 2010Effect of active screen plasma nitriding on the biocompatibility of UHMWPE surfaces
- 2008Solid state MAS-NMR and FTIR study of barium containing alumino-silicate glasses
- 2007Real-time nucleation and crystallisation studies of a fluorapatite glass-ceramics using small-angle neutron scattering and neutron diffractioncitations
- 2007Structural characterization of ionomer glasses by multinuclear solid state MAS-NMR spectroscopycitations
- 2006The influence of montmorillonite clay reinforcement on the performance of a glass ionomer restorativecitations
- 2006Real Time Neutron Diffraction Studies of apatite glass ceramicscitations
- 2002Mechanical properties of biodegradable polymer sutures coated with bioactive glasscitations
Places of action
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article
The influence of montmorillonite clay reinforcement on the performance of a glass ionomer restorative
Abstract
Objectives: A pristine calcium montmorillonite (Ca-MMT) and an organically modified 12-amino-dodecanoicacid treated montmorillonite (ADA-MMT) clay were evaluated to determine the reinforcement effect on the performance of a glass ionomer (GI) restorative ChemFil (R) Superior (Dentsply DeTrey, Kanstanz, Germany) to assess the potential as a posterior filling material. Methods: Mean compressive fracture strengths and standard deviations were determined for groups of 30 cylindrical specimens with 0.5-2.5 wt.% Ca-MMT and ADA-MMT additions to either the powder or the liquid elements of the GI. Working characteristics were assessed using an oscillating rheometer, the interlayer d-spacings (d(0 0 1)) of each MMT clay was determined using X-ray diffraction (XRD) and the set cement structure was determined by scanning electron microscopy (SEM). Results: The addition of up to 1.0 wt.% ADA-MMT resulted in a significant increase in the mean compressive fracture strength of the GI utilising the one-way ANOVA and Tukey test comparisons at P <0.05. When Ca-MMT clay was added to the GI a significant reduction in mean strength was recorded (P <0.05). MMT clay addition to the powder and liquid element of the GI in excess of 1.0 wt.% resulted in no significant differences in working characteristics although increases in setting times were evident for MMT addition up to 1.0 wt.%. XRD patterns identified the d(0 0 1) peaks for Ca- and ADA-MMT at 2 theta angles of 8.44 degrees and 5.07 degrees and d(0 0 1) spacings of 1.04 and 1.74 nm, respectively. Conclusions: The increased interlayer d-spacings recorded for ADA-MMT clay demonstrates that the clay had expanded layers which may have provided an increased opportunity for the polyacrylic acid chains of the GI restorative to diffuse into the MMT galleries. It is postulated that the increased interlayer d-spacings for the ADA-MMT clay had a positive reinforcing effect on the GI compared with the Ca-MMT clay where no increased performance was identified. The study has highlighted the potential for increasing the performance of GI restoratives when using an organically modified clay as a reinforcement which could increase the potential of GIs as posterior filling materials. (c) 2006 Elsevier Ltd. All rights reserved.