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Updated: Jun 20, 2026
07:35
Creating Rigidly Stabilized Fractures for Assessing Intramembranous Ossification, Distraction Osteogenesis, or Healing of Critical Sized Defects
Published on: April 11, 2012
Bone resorption and complications in alveolar distraction osteogenesis
Tobias Ettl1, Till Gerlach, Thomas Schüsselbauer
1Department of Oral and Maxillofacial Surgery, University of Regensburg, Regensburg, Germany.
Clinical Oral Investigations
|September 24, 2009
Summary
Distraction osteogenesis effectively augments alveolar bone for dental implants but involves complications like bone resorption. Overcorrection and bone grafting may improve outcomes for this dental implant procedure.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Implantology
- Regenerative Medicine
Background:
- Atrophic alveolar bone presents a challenge for dental implant placement.
- Distraction osteogenesis offers a method for alveolar bone augmentation.
Purpose of the Study:
- To evaluate complications of alveolar distraction osteogenesis for dental implants.
- To assess bone resorption during consolidation and after implant placement.
Main Methods:
- Retrospective study of 30 patients undergoing 36 vertical alveolar distractions.
- Extraosseous distraction system used in maxilla and mandible.
- Evaluation via panoramic and periapical radiographs.
Main Results:
- Achieved mean alveolar height of 6.4 mm with 21.1% resorption before implant insertion.
- Complications included segment displacement (n=15) and soft tissue issues (n=13).
- 82 implants showed a 95.1% survival rate; 3.5 mm marginal bone resorption observed post-implantation.
Conclusions:
- Alveolar distraction osteogenesis is effective but complicated for vertical defects.
- Consider combining with autogenous bone grafts and overcorrecting by 20% to manage relapse.
- Post-implantation bone resorption is a common occurrence requiring further investigation.
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