Surface Modifications of Zirconia Implants

DOI
  • HIROTA Masatsugu
    Department of Education for Dental Medicine, Tsurumi University School of Dental Medicine, Yokohama, Japan
  • HAYAKAWA Tohru
    Tsurumi University School of Dental Medicine, Yokohama, Japan

Bibliographic Information

Other Title
  • ジルコニアインプラントの表面改質

Abstract

<p>Due to the high mechanical properties of zirconia, unlike titanium implants, surface modification that matches the material properties of zirconia should be considered. Zirconia was coated with carbonate-apatite thin films by using molecular precursor method. Implantation into the tibia and femoral condyle of rabbits revealed more new bone formation and provided significantly higher bone-to-implant contact (BIC) ratio. Nanosecond pulsed Nd: YAG lasers were irradiated onto two types of zirconia, yttria added type and ceria added type, surfaces to produce regular structure of concave and convex with 30 μm width and 30 μm depth. Implants placement into a rat femoral defect showed a greater degree of bone formation and higher BIC than that of the sandblasted implants. In ceria-added zirconia, there were no clear bone formation and changes in surface composition affected the bone formation.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390862699741854848
  • DOI
    10.11223/jard.22.1
  • ISSN
    18800815
    13489615
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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