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Related Experiment Videos

Fixed mandibular restorations on three early-loaded regular platform Brånemark implants.

H De Bruyn1, J Kisch, B Collaert

  • 1Centre Periodontology and Implantology, Brussels, Belgium. hugo.debruyn@glo.be

Clinical Implant Dentistry and Related Research
|March 13, 2002
PubMed
Summary

This study found that using only three implants for a fixed mandibular bridge resulted in a 9.5% failure rate. This early-loading, one-stage surgery approach is less successful than standard multi-implant restorations.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Dental Implantology
  • Prosthodontics

Background:

  • The Brånemark System, initially a two-stage procedure, has evolved with one-stage and early-loading options for edentulous mandibles.
  • Reducing surgical interventions and implant numbers can decrease patient financial burden.
  • Patient financial concerns are a significant factor in implant treatment decisions.

Purpose of the Study:

  • To evaluate the 1- and 3-year success rates of mandibular implants loaded within one month after one-stage surgery.
  • To assess the prosthetic outcomes of fixed 10- to 12-unit bridges supported by three Brånemark System implants.
  • To gather patient perspectives on the early-loading, one-stage implant procedure.

Main Methods:

  • A prospective multicenter study involving 20 patients with edentulous mandibles.

Related Experiment Videos

  • Functionally loading three regular platform Brånemark System implants in a tripodal position within one month of one-stage surgery.
  • Utilizing two additional control implants (one-stage and submerged) for comparative analysis of stability and bone levels.

    • Main Results:

    • A 9.5% cumulative implant failure rate was observed after 1 and 3 years in the functionally loaded group (group 1).
    • Six of 60 loaded implants (10%) and 3 of 20 prostheses (15%) failed within the first year.
    • Marginal bone loss was observed, with average levels at 3 years being 2.1 mm for group 1, 2.4 mm for group 2, and 0.7 mm for group 3.

    Conclusions:

    • The use of three Brånemark System implants for a fixed mandibular reconstruction with early loading showed less favorable results compared to standard protocols.
    • This treatment approach may not achieve the success rates expected with conventional four- to six-implant restorations.
    • Further research may be needed to optimize protocols for reduced implant number and early loading in mandibular reconstructions.