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Related Experiment Videos

Immediate implants supporting single crown restoration: a 4-year prospective study.

Ugo Covani1, Roberto Crespi, Roberto Cornelini

  • 1Department of Biophysical, Medical and Dental Sciences and Technologies, Medical School, University of Genova, Genova, Italy.

Journal of Periodontology
|September 3, 2004
PubMed
Summary

Dental implants placed in fresh extraction sockets achieve a high 97% success rate over four years. This study examined implants with and without guided bone regeneration (GBR) for single crown restorations.

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Area of Science:

  • Dental implantology
  • Oral surgery
  • Prosthodontics

Background:

  • Immediate implant placement in extraction sockets offers benefits like ridge preservation and reduced treatment time.
  • Guided bone regeneration (GBR) may be used to augment extraction sockets for implant placement.
  • Preselected patients with good oral hygiene were candidates for this study.

Purpose of the Study:

  • To evaluate the cumulative success rate of dental implants placed in fresh extraction sockets.
  • To compare outcomes with and without guided bone regeneration (GBR).
  • To assess implants supporting single crown restorations over a 4-year period.

Main Methods:

  • A prospective study included 95 patients (20-68 years) with 163 implants.
  • Implants were placed in fresh extraction sockets, some with GBR.

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  • Clinical and radiographic evaluations were performed annually for 48 months.

    • Main Results:

    • The 4-year cumulative success rate for dental implants was 97%.
    • Five implants failed: two early (healing) and three late (post-prosthetic).
    • No prosthetic rehabilitation failures were reported.

    Conclusions:

    • Dental implants in fresh extraction sockets, with or without GBR, demonstrate high success rates for single crowns.
    • Patient selection, strict oral hygiene, implant surface treatment, and single crown restorations are key factors.
    • The study highlights the predictability of immediate implant placement in carefully selected patients.