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Related Experiment Videos

Titanium release from implants prepared with different surface roughness.

Ann Wennerberg1, Ari Ide-Ektessabi, Shino Hatkamata

  • 1Department of Biomaterials/Handicap Research, Göteborg University, Gothenburg, Sweden. ann.wennerberg@biomaterials.gu.se

Clinical Oral Implants Research
|September 10, 2004
PubMed
Summary

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This study found no link between implant surface roughness and ion release in dental implants. Ion levels in surrounding bone tissue remained low and decreased with distance from the implant.

Area of Science:

  • Biomaterials Science
  • Dental Implantology
  • Materials Science

Background:

  • Surface modifications of dental implants aim to improve osseointegration.
  • Concerns exist regarding potential increased ion release from roughened implant surfaces.
  • Understanding ion release is crucial for long-term implant safety and efficacy.

Purpose of the Study:

  • To investigate the correlation between surface roughness and ion release in dental implants.
  • To compare ion release in vitro and in vivo.
  • To assess ion concentration in bone tissue at varying distances from the implant surface.

Main Methods:

  • In vitro studies used lactic acid solution and phosphate-buffered saline.
  • In vivo studies involved implantation in rabbit tibiae.

Related Experiment Videos

  • Synchrotron radiation X-ray fluorescence (SRXRF) and secondary ion mass spectroscopy (SIMS) were employed for ion analysis.

    • Main Results:

    • No significant difference in ion release was observed in vitro across different surface roughness levels.
    • In vivo, SRXRF showed slightly higher ion values near the roughest surfaces, diminishing with distance.
    • SIMS indicated no difference in ion release between roughest and smoothest surfaces, with titanium levels decreasing rapidly from the implant.

    Conclusions:

    • Increasing surface roughness, relevant to commercial oral implants, did not correlate with increased ion release.
    • Ion release was not significantly affected by surface roughness in either in vitro or in vivo conditions.
    • Titanium concentration in bone tissue decreased with distance from the implant and over time.