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Related Experiment Video

Updated: Jun 14, 2026

In situ Compressive Loading and Correlative Noninvasive Imaging of the Bone-periodontal Ligament-tooth Fibrous Joint
07:09

In situ Compressive Loading and Correlative Noninvasive Imaging of the Bone-periodontal Ligament-tooth Fibrous Joint

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Potential of self-drilling orthodontic microimplants under immediate loading.

Yan Chen1, Ji-Wan Lee, Woo-Hyung Cho

  • 1Oral Department, Inner Mongolia Medical University, Hohhot, China.

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
|April 6, 2010
PubMed
Summary

Self-drilling orthodontic microimplants (1.2-1.3mm) show good osseointegration and stability with immediate loading in thin bone. A pilot hole is recommended for thick bone to prevent microimplant breakage.

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Area of Science:

  • Orthodontics
  • Biomaterials Science
  • Dental Implantology

Background:

  • Orthodontic anchorage relies on stable fixation.
  • Self-drilling microimplants offer a minimally invasive anchorage solution.
  • Investigating immediate loading efficiency is crucial for clinical application.

Purpose of the Study:

  • To evaluate the clinical and histological efficacy of self-drilling microimplants under immediate, continuous loading.
  • To assess the impact of loading on microimplant stability and osseointegration.
  • To determine optimal placement techniques for different bone densities.

Main Methods:

  • Titanium-alloy microimplants (1.2-1.3mm) were placed in canine jaws.
  • Immediate horizontal loading (approx. 200g) was applied to 36 microimplants.

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An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
11:51

An Improved Mechanical Testing Method to Assess Bone-implant Anchorage

Published on: February 10, 2014

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Last Updated: Jun 14, 2026

In situ Compressive Loading and Correlative Noninvasive Imaging of the Bone-periodontal Ligament-tooth Fibrous Joint
07:09

In situ Compressive Loading and Correlative Noninvasive Imaging of the Bone-periodontal Ligament-tooth Fibrous Joint

Published on: March 7, 2014

An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
11:51

An Improved Mechanical Testing Method to Assess Bone-implant Anchorage

Published on: February 10, 2014

  • Histological and histomorphometric analyses were performed after 9 weeks.

    • Main Results:

    • Stable microimplants demonstrated good osseointegration with new bone formation.
    • High bone-to-implant contact was observed in loaded samples.
    • No significant statistical difference in bone contact between loaded and unloaded groups.

    Conclusions:

    • Small-diameter titanium alloy microimplants support self-drilling and immediate loading in thin cortical bone.
    • Pre-drilling a pilot hole in thick cortical bone is advised to minimize breakage risk.
    • Microimplants show clinical potential for orthodontic anchorage with immediate loading.