New advanced surface modification technique: Titanium oxide ceramic surface implants. Long-term clinical results

György Szabó, Lajos Kovács, József Barabás, Zsolt Németh, Carlo Maironna

Research output: Contribution to journalConference article

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 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.

Original languageEnglish
Pages (from-to)86-96
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4590
DOIs
Publication statusPublished - Dec 1 2001
EventBioMEMS and Smart Nanostructures - Adelaide, Australia
Duration: Dec 17 2001Dec 19 2001

Keywords

  • Surface modification
  • Titanium
  • Titanium oxide ceramic coating

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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