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Related Experiment Videos

Two-part implants inserted in a one-stage or a two-stage procedure. A prospective comparative study.

Kees Heydenrijk1, Gerry M Raghoebar, Henny J A Meijer

  • 1Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, Dental School, Faculty of Medical Sciences, University of Groningen, the Netherlands. k.heydenrijk@kchir.azg.nl

Journal of Clinical Periodontology
|November 26, 2002
PubMed
Summary

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A one-stage surgical procedure for two-part dental implants is as predictable as the traditional two-stage method. Peri-implant pathogens may exist without causing significant tissue breakdown.

Area of Science:

  • Dental Implantology
  • Oral Microbiology

Background:

  • Two-part dental implant systems are commonly placed using a two-stage surgical procedure.
  • Evaluating alternative surgical protocols is crucial for improving patient outcomes and treatment efficiency.

Purpose of the Study:

  • To assess the feasibility of a one-stage surgical procedure for two-part IMZ implants.
  • To monitor peri-implant microflora in relation to clinical and radiographic outcomes.
  • To compare one-stage versus two-stage surgical procedures for dental implants.

Main Methods:

  • Forty edentulous patients received two IMZ implants in the anterior mandible.
  • Patients were randomized into either a one-stage (n=20) or two-stage (n=20) surgical group.
  • Clinical and radiographic evaluations were conducted at baseline, 6, and 12 months post-loading. Peri-implant samples were analyzed for pathogens at 12 months.

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Main Results:

  • No significant differences in clinical parameters were observed between the one-stage and two-stage groups.
  • Mean bone loss in the first year was 0.6 mm for both groups.
  • An association was found between deep pockets (≥4 mm) and Peptostreptococcus micros in the two-stage group.

Conclusions:

  • Short-term results suggest one-stage placement of two-part implants is a predictable alternative.
  • The peri-implant sulcus can harbor periodontal pathogens without evident tissue breakdown.
  • Further research is warranted to explore long-term outcomes and the clinical significance of identified microorganisms.