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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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Prati, Carlo
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 20213d finite element analysis of rotary instruments in root canal dentine with different elastic modulicitations
- 2019Addition of phosphates and chlorhexidine to resin-modified MTA materialscitations
- 2015HyFlex EDM: innovative electro discharge machined rotary instruments. Fatigue testing, superficial and microstructural characterizationcitations
- 2015Effect of the silane concentration on the selected properties of an experimental microfilled composite resin
- 2014Metallurgical analysis and fatigue resistance of WaveOne and ProTaper Nickel–Titanium instrumentscitations
- 2010Push-out strength of modified Portland cements and resins
- 2006Effect of resin hydrophilicity and temperature on water sorption of dental adhesive resinscitations
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article
Push-out strength of modified Portland cements and resins
Abstract
<p>Purpose: Modified calcium-silicate cements derived from white Portland cement (PC) were formulated to test their push-out strength from radicular dentin after immersion for 1 month. Methods: Slabs obtained from 42 single-rooted extracted teeth were prepared with 0.6 mm diameter holes, then enlarged with rotary instruments. After immersion in EDTA and NaOCl, the holes were filled with modified PCs or ProRoot MTA, Vitrebond and Clearfil SE. Different concentrations of phyllosilicate (montmorillonite-MMT) were added to experimental cements. ProRoot MTA was also included as reference material. Vitrebond and Clearfil SE were included as controls. Each group was tested after 1 month of immersion in water or PBS. A thin-slice push-out test on a universal testing machine served to test the push-out strength of materials. Results were statistically analyzed using the least squares means (LSM) method. Results: The modified PCs had push-out strengths of 3-9.5 MPa after 1 month of immersion in water, while ProRoot MTA had 4.8 MPa. The push-out strength of PC fell after incubation in PBS for 1 month, while the push-out strength of ProRoot MTA increased. There were no significant changes in Clearfil SE Bond or Vitrebond after water or PBS storage.</p>