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Proceedings Paper

New advanced surface modification technique: titanium oxide ceramic surface implants: long-term clinical results
Author(s): Gyorgy Szabo; Lajos Kovacs; Jozsef Barabas; Zsolt Nemeth; Carlo Maironna
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Paper Abstract

The purpose of this paper is to discuss the background to advanced surface modification technologies and to present a new technique, involving the formation of a titanium oxide ceramic coating, with relatively long-term results of its clinical utilization. Three general techniques are used to modify surfaces: the addition or removal of material and the change of material already present. Surface properties can also be changed without the addition or removal of material, through the laser or electron beam thermal treatment. The new technique outlined in this paper relates to the production of a corrosion-resistant 2000-2500 A thick, ceramic oxide layer with a coherent crystalline structure on the surface of titanium implants. The layer is grown electrochemically from the bulk of the metal and is modified by heat treatment. Such oxide ceramic-coated implants have a number of advantageous properties relative to implants covered with various other coatings: a higher external hardness, a greater force of adherence between the titanium and the oxide ceramic coating, a virtually perfect insulation between the organism and the metal (no possibility of metal allergy), etc. The coated implants were subjected to various physical, chemical, electronmicroscopic, etc. tests for a qualitative characterization. Finally, these implants (plates, screws for maxillofacial osteosynthesis and dental root implants) were applied in surgical practice for a period of 10 years. Tests and the experience acquired demonstrated the good properties of the titanium oxide ceramic-coated implants.

Paper Details

Date Published: 19 November 2001
PDF: 11 pages
Proc. SPIE 4590, BioMEMS and Smart Nanostructures, (19 November 2001); doi: 10.1117/12.454591
Show Author Affiliations
Gyorgy Szabo, Semmelweis Univ. of Medicine (Hungary)
Lajos Kovacs, Innovation Co. for Telecommunications (Hungary)
Jozsef Barabas, Semmelweis Univ. of Medicine (Hungary)
Zsolt Nemeth, Semmelweis Univ. of Medicine (Hungary)
Carlo Maironna, Univ. degli Studi di Milano (Italy)

Published in SPIE Proceedings Vol. 4590:
BioMEMS and Smart Nanostructures
Laszlo B. Kish; Erol C. Harvey; William B. Spillman Jr., Editor(s)

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