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Metals 2015, 5(1), 119-130; doi:10.3390/met5010119

Experimental Investigations on the Influence of Adhesive Oxides on the Metal-Ceramic Bond

Department of Prosthetic Dentistry, Faculty of Medicine, Technische Universität Dresden, Fetscherstr, 74 D-01307 Dresden, Germany
Forschungszentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research, Bautzner Landstr, 400 D-01328 Dresden, Germany
Author to whom correspondence should be addressed.
Academic Editor: Marta Ziemnicka-Sylwester
Received: 23 September 2014 / Revised: 22 December 2014 / Accepted: 12 January 2015 / Published: 21 January 2015
(This article belongs to the Special Issue Advances in Cermets)
View Full-Text   |   Download PDF [678 KB, uploaded 21 January 2015]   |  


The objective of this study was to test the influence of selected base metals, which act as oxide formers, on the metal-ceramic bond of dental veneer systems. Using ion implantation techniques, ions of Al, In and Cu were introduced into near-surface layers of a noble metal alloy containing no base metals. A noble metal alloy with base metals added for oxide formation was used as a reference. Both alloys were coated with a low-temperature fusing dental ceramic. Specimens without ion implantation or with Al2O3 air abrasion were used as controls. The test procedures comprised the Schwickerath shear bond strength test (ISO 9693-1), profile height (surface roughness) measurements (ISO 4287; ISO 4288; ISO 25178), scanning electron microscopy (SEM) imaging, auger electron spectroscopy (AES) and energy dispersive X-ray analysis (EDX). Ion implantation resulted in no increase in bond strength. The highest shear bond strengths were achieved after oxidation in air and air abrasion with Al2O3 (41.5 MPa and 47.8 MPa respectively). There was a positive correlation between shear bond strength and profile height. After air abrasion, a pronounced structuring of the surface occurred compared to ion implantation. The established concentration shifts in alloy and ceramic could be reproduced. However, their positive effects on shear bond strength were not confirmed. The mechanical bond appears to be of greater importance for metal-ceramic bonding. View Full-Text
Keywords: alloy; ion implantation; shear bond strength; metal-ceramic bond; mechanical bond; chemical bond alloy; ion implantation; shear bond strength; metal-ceramic bond; mechanical bond; chemical bond

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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

Enghardt, S.; Richter, G.; Richter, E.; Reitemeier, B.; Walter, M.H. Experimental Investigations on the Influence of Adhesive Oxides on the Metal-Ceramic Bond. Metals 2015, 5, 119-130.

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