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                  <mods:namePart>Miguel Calvo, Alicia</mods:namePart>
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                  <mods:namePart>Macorra García, José Carlos De La</mods:namePart>
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                  <mods:namePart>Nevado Rodríguez, Silvia</mods:namePart>
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                  <mods:namePart>Gómez López, Javier</mods:namePart>
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                  <mods:dateAccessioned encoding="iso8601">2023-06-20T20:30:27Z</mods:dateAccessioned>
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               <mods:identifier type="issn">0894-8275</mods:identifier>
               <mods:identifier type="uri">https://hdl.handle.net/20.500.14352/60376</mods:identifier>
               <mods:abstract>Purpose: to quantify the internal free surface in various resin cements and glass-ionomer-based materials.

Materials and methods: materials tested were Nexus fluid (NXF) and vicous (NXV), Vitremer (VTM), Fuji II LC (FII), Vitremer Luting Cement (VLC), Dyract (DYR) and Compoglass (COM). Samples (n=5) were made of each material between two microscopic glass slides under same weight. With a transmitted light microscopy, four zones of each sample were evaluated, finding the number of porosities per mm² (NP), the average radius of porosities (RP), the ratio of total area of surface porosities (µ²) to area (mm²) of specimen surface (TA) and the ratio of total volume of porosities (µ²) to area (mm²) of material surface (VP).

Results: median test was used. NP: NXV, NXF and DYR had smaller than VTM and FII ans (likely) than VLC (P&lt;0.0000001) RP was smaller for DYR than for VLC and (likely) than for NXV (P=0.00019). TA: NXV, NXF and DYR had smaller TA than VTM, FII and VLC (P&lt;0.0000001). VP: NXV and DYR had smaller VP than FII and (likely) than VTM and VLC (P&lt;0.0000001).</mods:abstract>
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                  <mods:title>Porosity of resin cements and resin-modified glass-ionomers</mods:title>
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