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Related Concept Videos

Scanning Electron Microscopy01:07

Scanning Electron Microscopy

A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
Fundamental Principles
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Effects of Mechanical Methods Used in Peri-implantitis Treatment on Implant Surface Decontamination and Roughness
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Surface characterization analysis of failed dental implants using scanning electron microscopy.

Umer Daood1, Ninette Bandey, Saad Bin Qasim

  • 1International Medical University, Malaysia. umer_daood@imu.edu.my

Acta Odontologica Scandinavica
|April 1, 2011
PubMed
Summary

Surface analysis of failed dental implants revealed trace elements but no verifiable apatite layer formation. This suggests surface quality may not be the sole factor in implant failure.

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Area of Science:

  • Biomaterials science
  • Dental implantology
  • Surface chemistry

Background:

  • Dental implant surface properties are crucial for osseointegration and long-term success.
  • Understanding implant surface changes after failure is essential for improving future designs.
  • Paragon/Zimmer implants were investigated due to their clinical use.

Purpose of the Study:

  • To examine the surface characteristics of failed Paragon/Zimmer dental implants.
  • To correlate surface quality with implant failure.
  • To investigate potential apatite layer formation on failed implant surfaces.

Main Methods:

  • Surface characterization of 15 failed Paragon/Zimmer dental implants using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDS).
  • Comparison of failed implant surfaces with an unused implant of the same brand.
  • Immersion of failed implants in Simulated Body Fluid (SBF) to assess surface reactions.

Main Results:

  • SEM and EDS analysis of failed implants showed the presence of trace amounts of calcium (Ca(+)), sodium (Na(+)), and chloride (Cl(-)) after SBF immersion.
  • No significant new component formation was observed.
  • The surfaces did not exhibit characteristics indicative of successful osseointegration.

Conclusions:

  • Apatite layer formation, a key indicator of osseointegration, could not be verified on the failed implant surfaces.
  • The study suggests that surface quality, as assessed by apatite layer formation, may not be the primary reason for the failure of these specific dental implants.
  • Further research is needed to identify other potential factors contributing to dental implant failure.