| 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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Eliades, George
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2019Silane reactivity and resin bond strength to lithium disilicate ceramic surfacescitations
- 2016Elemental, Morphological, and Corrosion Characterization of Different Surface States of Co-Cr Alloy for Prosthodontic Applications
- 2015Mechanical properties of orthodontic wires derived by instrumented indentation testing (IIT) according to ISO 14577
- 2015Aging resistance of surface-treated dental zirconiacitations
- 2014Multitechnique characterization of CPTi surfaces after electro discharge machining (EDM)citations
- 2014Micro-Raman spectroscopic analysis of TiO2 phases on the root surfaces of commercial dental implantscitations
- 20073D-marginal adaptation versus setting shrinkage in light-cured microhybrid resin compositescitations
- 2005Comparative assessment of the roughness, hardness, and wear resistance of aesthetic bracket materialscitations
- 2004Titanium orthodontic brackets: Structure, composition, hardness and ionic releasecitations
- 2001Intraoral aging of the inner headgear component: A potential biocompatibility concern?citations
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article
Comparative assessment of the roughness, hardness, and wear resistance of aesthetic bracket materials
Abstract
Objective. The purpose of this study was to assess critical properties of orthodontic aesthetic bracket materials. Methods. Samples of polycarbonate, poly(oxy)methylene, ultra high molecular weight polyethylene (UHMWPE), and polycrystalline alumina raw material used from bracket manufacturing were subjected to: (a) profilometry for the determination of Ra, R q, Rmax and Rz roughness parameters; (b) Vickers hardness (HV50) testing; and (c) wear resistance determined by the scratch test. The results were analyzed with one-way ANOVA and Tukey multiple comparisons test at α=0.05 level of significance. Results. The UHMWP and alumina specimens showed the highest roughness values for all parameters. The highest hardness, amongst the polymeric raw materials, was obtained from the poly(oxy)methylene appliances. Differences were also noted between the polycarbonate raw material of different manufacturers implying an effect from the manufacturing process. With the exception of alumina, the highest wear resistance was found for the poly(oxy)methylene specimens. Significance. The results of this study reveal the variability among aesthetic plastic bracket raw materials, their reduced hardness and wear resistance relative to alumina as well as the inappropriateness of UHMWPE as alternative bracket material. © 2005 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.