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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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Lauritano, Dorina
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Publications (8/8 displayed)
- 2016Mechanical properties of abutments: Resin-bonded glass fiber-reinforced versus titaniumcitations
- 2016Mechanical properties of abutments: Resin-bonded glass fiber-reinforced versus titaniumcitations
- 2016Polymerization shrinkage and spherical glass mega fillers: Effects on cuspal deflectioncitations
- 2016Mechanical Properties of Abutments: Resin-Bonded Glass Fiber-Reinforced Versus Titanium.citations
- 2016Polymerization shrinkage and spherical glass mega fillers: effects on cuspal deflection.citations
- 2015Mechanical properties of resin glass fiber-reinforced abutment in comparison to titanium abutment.citations
- 2015In vitro analysis of marginal adaptation and resistance of different dental composites: Stereo and scanning electron microscopic evaluation
- 2015Mechanical properties of resin glass fiber-reinforced abutment in comparison to titanium abutmentcitations
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article
Polymerization shrinkage and spherical glass mega fillers: effects on cuspal deflection.
Abstract
<h4>Purpose</h4>The Authors analyzed the effect of spherical glass mega fillers (SGMF) on reducing contraction stress in dental composite resins, by means of a cavity model simulating the cuspal deflection which occurs on filled tooth cavity walls in clinical condition.<h4>Materials and methods</h4>20 stylized MOD cavities (C-factor = 0.83) were performed in acrylic resin. The inner surface of each cavity was sand blasted and adhesively treated in order to ensure a valid bond with the composite resin. Three different diameter of SGMF were used (i.e. 1, 1,5, 2 mm). The samples were divided in 4 groups of 5 each: Group 1 samples filled with the composite only; Group 2 samples filled with composite added with SGMFs, Ø1mm (16 spheres for each sample); Group 3 samples filled with composite added with SGMFs, Ø1,5 mm (5 spheres for each sample); Group 4 samples filled with composite added with SGMFs, Ø2 mm (2 spheres for each sample). Digital pictures were taken, in standardized settings, before and immediately after the polymerization of the composite material, placed into the cavities. With a digital image analysis software the distances from the coronal reference points of the cavity walls were measured. Then the difference between the first and second measurement was calculated. The data were analyzed by means of the ANOVA test.<h4>Results</h4>A significative reduction on cavity walls deflection, when the composite resin is used in addiction with the SGMFs was observed. The SGMFs of smallest diameter (1mm) showed the better outcome.<h4>Conclusion</h4>The SGMFs are reliable in reducing contraction stress in dental composite resins.