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Orthodontic movement in bone defects augmented with Bio-Oss. An experimental study in dogs.
M G Araújo1, D Carmagnola, T Berglundh
1Department of Periodontology, Faculty of Odontology, Göteborg University, Sweden.
Journal of Clinical Periodontology
|January 6, 2001
Summary
Orthodontic tooth movement into Bio-Oss augmented jawbone was successful. The graft material was degraded and eliminated from utilized areas but remained in non-utilized regions.
Area of Science:
- Oral surgery
- Biomaterials science
- Orthodontics
Background:
- Alveolar ridge augmentation is crucial for dental implant success.
- Bio-Oss is a commonly used bone graft material.
- Understanding its interaction with orthodontic tooth movement is essential.
Purpose of the Study:
- To investigate the feasibility of orthodontic tooth movement into Bio-Oss augmented bone.
- To evaluate the fate of Bio-Oss during orthodontic tooth movement.
Main Methods:
- Five beagle dogs underwent mandibular premolar extractions.
- Defects were grafted with Bio-Oss or left for spontaneous healing.
- Orthodontic forces were applied to move adjacent premolars into extraction sites.
- Histological analysis assessed bone, Bio-Oss, and periodontal ligament changes.
Main Results:
- Successful orthodontic tooth movement into Bio-Oss augmented sites was achieved.
- Bio-Oss was degraded and eliminated from utilized areas during movement.
- Residual Bio-Oss persisted as filler in non-utilized portions of the augmented site.
Conclusions:
- Bio-Oss can be utilized for orthodontic tooth movement into augmented alveolar ridges.
- The graft material is resorbed in areas of active tooth movement.
- Bio-Oss acts as a stable filler in non-utilized augmented bone areas.