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Materials 2016, 9(3), 203; doi:10.3390/ma9030203

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

1
Istituto Italiano di Tecnologia (IIT), via Morego 30, I-16163 Genova, Italy
2
Dipartimento di Scienze Chirurgiche e Diagnostiche Integrate—Scuola di Medicina—Università di Genova, corso Europa 30, I-16132 Genova, Italy
3
Private practice, MD, DDS, Dental Office in Genova, via Rimassa 51, I-16129 Genova, Italy
4
Private practice, MD, DDS, Dental Office in Mestre, corso del Popolo 111, I-30125 Mestre (VE), Italy
5
INBB Istituto Nazionale Biostrutture e Biosistemi, viale delle Medaglie d’Oro 305, I-00136 Roma, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Nadia Jessel
Received: 1 February 2016 / Revised: 17 February 2016 / Accepted: 26 February 2016 / Published: 16 March 2016
(This article belongs to the Section Biomaterials)
View Full-Text   |   Download PDF [892 KB, uploaded 16 March 2016]   |  

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. View Full-Text
Keywords: dental resin composite; nanoporous filler; anodic porous alumina; atomic force microscope; adhesion strength dental resin composite; nanoporous filler; anodic porous alumina; atomic force microscope; adhesion strength
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Salerno, M.; Loria, P.; Matarazzo, G.; Tomè, F.; Diaspro, A.; Eggenhöffner, R. Surface Morphology and Tooth Adhesion of a Novel Nanostructured Dental Restorative Composite. Materials 2016, 9, 203.

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