Regensburg 2007 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 35: SYBM Bioinspired Materials
MM 35.24: Poster
Donnerstag, 29. März 2007, 18:45–20:45, H16
Micropatterning of ceramics by ion beam sputtering for dental implants — •Sebastian Wille1, Bin Yang2, and Rainer Adelung1 — 1Lehrstuhl für Materialverbunde, Technische Fakultät der CAU Kiel, Kaiserstr. 2, 24143 Kiel — 2Universitätsklinikum Schleswig-Holstein Campus Kiel, Klinik für Zahnärztliche Prothetik, Propädeutik und Werkstoffkunde, Arnold-Heller-Strasse 16, 24105 Kiel
Due to their attractive esthetics, biocompatibility and mechanical properties, zirconia ceramics are increasingly used for dental implants. But they do not form an osseo-integration due to chemical inertness. In order to improve the osseo-integration of zirconia ceramic implants, a microstructure on the ceramic surface is developed with an ion beam sputter process through a thin film mask which exhibits low sputtering rates. The thin film masks covering ceramic surface are fractured to obtain a microcrack network . After sputtering, the network of cracks is transferred as a network of micro- and submicro channels. With this, relatively high aspect ratios for the microstructures can be obtained. Moreover, by filling the cracks with another material with a high sputter resistance, it is also possible to obtain the inverted network microstructure on zirconia ceramic surface.