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Effects of Mechanical Methods Used in Peri-implantitis Treatment on Implant Surface Decontamination and Roughness
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Microleakage into and from two-stage implants: an in vitro comparative study.

Wendel Teixeira1, Ricardo Faria Ribeiro, Sandra Sato

  • 1Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Brazil. wendelteixeira@gmail.com

The International Journal of Oral & Maxillofacial Implants
|March 3, 2011
PubMed
Summary

Microbial leakage of Staphylococcus aureus occurs through both Morse taper and internal-hexagon dental implant connections. This study found no significant difference in leakage rates between these two common implant types.

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Area of Science:

  • Dental Implantology
  • Microbiology
  • Biomaterials Science

Background:

  • Gaps at the implant-abutment interface are inherent in dental implantology.
  • Microleakage can lead to complications like peri-implantitis and malodor.
  • Understanding bacterial ingress is crucial for long-term implant success.

Purpose of the Study:

  • To investigate Staphylococcus aureus leakage through the implant-abutment interface.
  • To compare bacterial leakage rates between Morse taper and internal-hexagon implant connections.

Main Methods:

  • In vitro bacterial culture method used to assess microleakage.
  • Morse taper and internal-hexagon implants with abutments were tested.
  • Leakage was evaluated in both directions: into and from the implant interior.

Main Results:

  • Microbial leakage was observed in all tested implant groups.
  • No statistically significant difference in leakage was found between Morse taper and internal-hexagon connections.

Conclusions:

  • Both Morse taper and internal-hexagon implant-abutment interfaces are susceptible to Staphylococcus aureus leakage.
  • The findings highlight the potential for bacterial contamination regardless of the connection type.