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Effect of mouthwashes on the microhardness of aesthetic composite restorative materials
Background. Mouthwashes are increasingly being used worldwide. However, these preparations are known to have a negative impact on composite resin dental restorations.
Noura Alessa
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Effect of processing condition and composition on the microhardness of Cu-(2.5-10)vol.%Al₂O₃ nanocomposite powder particles produced by high energy mechanical milling [PDF]
Nanostructured Cu-(2.5-10vol.%)Al₂O₃ nanocomposites were produced using high energy mechanical milling. For the as-milled Cu- Al₂O₃ composite powder particles having Al₂O₃ volume fractions of 2.5% and 5%, the increase in average microhardness is ...
AAMIR MUKHTAR +5 more
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In this paper, the stress distribution field in front of the crack tip was obtained by loading a modified WOL specimen using a bolt. Considering the relationship between microhardness and hydrogen content or internal stress in the metal, a model based on
Lei Gu +3 more
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Thirty percent carbamide peroxide is widely used as in extra-coronal bleaching method. Its current effect on enamel (e.g. enamel microhardness) is still uncertain. In dentistry, fluoride is recommended to be applied in 60 seconds.
Inawati Muljadi +2 more
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Background The aim of this study was to evaluate the protective effects of fluoride mouthwash on the surface micro-hardness of two types of CAD/CAM ceramics after exposure to acidic solutions.
Hamid Kermanshah +4 more
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Deformation mechanisms in a TiNi shape memory alloy during cyclic loading [PDF]
The deformation mechanisms governing the cyclic stress-strain behaviour of a TiNi shape memory alloy were investigated in this work. To understand the development of these mechanisms during cyclic loading, three low-cycle fatigue tests were performed and
Billota, Giovambattista +2 more
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Effect of Curing Time on Polymerization Rate of Bulk-Fill Composite Resins
Objectives: The aim of this study was to compare polymerization depth of two bulk-fill and one conventional composite cured for different times. Methods: This in vitro experimental study was conducted on 54 composite samples (2×4×10mm) fabricated of ...
Zahra Jaberi Ansari +3 more
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Microstructural Characterization of Shrouded Plasma-Sprayed Titanium Coatings [PDF]
Titanium and its alloys are often used for corrosion protection because they are able to offer high chemical resistance against various corrosive media. In this paper, shrouded plasma spray technology was applied to produce titanium coatings.
Liu, Zhi, Zhou, Hong
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Effect of organic acids in dental biofilm on microhardness of a silorane-based composite
Objectives This study evaluated the effect of lactic acid and acetic acid on the microhardness of a silorane-based composite compared to two methacrylate-based composite resins. Materials and Methods Thirty disc-shaped specimens each were fabricated
Sedighe Sadat Hashemikamangar +4 more
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During the reactor operation, aluminum tank and the core components can experience radiation damage, resulting in limitation of its life span. Effects of radiation on the aluminum alloys are not yet fully understood, especially when material is obtained ...
Wysllan Jefferson Lima Garção +5 more
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