Surface Morphology and Tooth Adhesion of a Novel Nanostructured Dental Restorative Composite

Abstract

Recently, a novel dental restorative composite based on nanostructured micro-fillers of anodic porous alumina has been proposed. While its bulk properties are promising thanks to decreased aging and drug delivery capabilities, its surface properties are still unknown. Here we investigated the surface morphology and the adhesion to tooth dentin of this composite as prepared. For comparison, we used two commercial composites: Tetric EVO Flow (Ivoclar) and Enamel HRi Plus (Micerium). The surface morphology was characterized by atomic force microscopy and the adhesion strength by tensile tests. The experimental composite is rougher than the commercial composites, with root mean square roughness of ~549 nm against 170–511 nm, and presents an adhesion strength of ~15 MPa against 19–21 MPa. These results show at the same time some proximity to the commercial composites, but also the need for optimization of the experimental material formulation.

Nanoscale Topographical Characterization of Orbital Implant Materials

“…We now turn to the considerations about skewness and kurtosis. It should be reminded here that the use of these surface height parameters, in addition to more standard roughness parameters [ 30 ], has already demonstrated to provide useful insights for a number of different materials, such as dental restorative resins [ 31 , 32 ] and composite coatings [ 33 ]. In this work, due to the broad scattering between different samples’ areas, no difference appears to be statistically significant.…”

Review of Fabrication Methods, Physical Properties, and Applications of Nanostructured Copper Oxides Formed via Electrochemical Oxidation

“…The most frequently studied anodic oxides are hexagonally arranged anodic aluminum oxide (AAO) [ 1 ] and nanoporous or nanotubular anodic titanium oxide (ATO) [ 2 ]. Intensive research on those two nanostructured materials has incited significant progress in: electrochemical and optical sensing [ 3 , 4 ], nanofabrication [ 5 ], photonic crystals [ 6 ], information optical coding [ 7 ], filtration and kidney dialysis [ 8 ], drug releasing platforms [ 9 ], biomaterials performance [ 10 ], renewable energy harvesting [ 11 , 12 ], the removal of greenhouse gases [ 13 ], magnetic materials [ 14 ], surface-enhanced Raman spectroscopy [ 15 ], plasmonic materials [ 16 ], structural color generation [ 17 ], tunable contact angle surfaces [ 18 , 19 ], and tunable band gap materials [ 20 ].…”

The effect of dental LED light‐curing unit photoactivation mode on 3D surface morphology of dental nanocomposites evaluated by two‐dimensional multifractal detrended fluctuation analysis

“…Quantitative measurement of surface topography can be obtained using profilometry (Arabaci et al, ; Watanabe et al, ); or qualitative methods, such as scanning electron microscopy (Naseri et al, 2017; Zare et al 2018, Antonson et al, 2011, Erdemir et al, 2012) and atomic force microscopy (AFM) (Salerno et al, , Lainović, Blažić, Vilotić, & Kakaš, , Ţălu , Lainović et al, ]. In these studies, average surface roughness ( S a ) and root mean square ( S q ) were used to quantify morphological changes (Giacomelli et al, ; Janus, Fauxpoint, Arntz, Pelletier, & Etienne, ; Kakaboura, Fragouli, Rahiotis, & Silikas, ).…”