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Related Experiment Videos

Immediate loading of modular transitional implants: a histologic and histomorphometric study in dogs.

Y Zubery1, N Bichacho, O Moses

  • 1Department of Prosthetic Dentistry, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Israel.

The International Journal of Periodontics & Restorative Dentistry
|March 10, 2000
PubMed
Summary

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Modular Transitional Implants (MTI) supported immediate loading in dog mandibles. Loaded and unloaded MTIs showed similar success rates, with bone density and uncontrolled loading influencing outcomes.

Area of Science:

  • Dental Implantology
  • Biomaterials Science
  • Histology

Background:

  • Modular Transitional Implants (MTI) are pure titanium devices supporting provisional restorations during definitive implant osseointegration.
  • Understanding the jaw response to loaded MTIs is crucial for optimizing dental implant procedures.

Purpose of the Study:

  • To histologically examine the mandibular bone response to loaded MTIs in a canine model.
  • To compare the osseointegration and success rates of loaded versus unloaded MTIs.

Main Methods:

  • Three transmucosal MTIs were placed per side in 3 dogs' mandibles.
  • Anterior and posterior implants were immediately loaded via a splinted partial denture; middle implants served as unloaded controls.
  • Implant stability was assessed with Periotest; histological analysis was performed 11-12 weeks post-implantation.

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Main Results:

  • 10 of 18 implants achieved good bone-to-implant contact (30-65% threaded portion).
  • No significant difference in bone-to-metal contact was observed between loaded and unloaded implants (p > 0.1).
  • Six implants were surrounded by connective tissue, and two were lost; success rates did not differ between groups.

Conclusions:

  • MTIs demonstrated comparable success rates whether loaded or unloaded in this canine study.
  • Initial bone density and uncontrolled occlusal forces significantly influenced MTI success.
  • Trabecular bone remodeling occurred at successful bone-to-implant contact sites.