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Periodontal parameters around implants anchoring orthodontic appliances: a series of case reports
Liene Molly1, Guy Willems, Daniel van Steenberghe
1Department of Periodontology, Faculty of Medicine, Catholic University of Leuven, Leuven, Belgium.
Background:
Implants replacing missing teeth provide advantages over clinical orthodontic treatment as compensation for reaction forces is no longer necessary and the lack of teeth is immediately resolved.
Methods:
A total of 38 two-stage implants were inserted (16 in maxilla, 22 in mandible) in 10 partially edentulous patients with orthodontic problems. Osseointegration and marginal bone levels were assessed via intra-oral radiographs taken at the abutment stage and at the completion of the orthodontic treatment and also via probing depth, measurement of recession toward the implant/abutment (I/A) interface, and sulcus bleeding index, recorded after completion of orthodontic treatment.
Results:
In the maxilla, the cumulative survival rate was 87.1% after 2 years; for the mandible, it remained 100%. Mean amount of bone loss was 1.6 mm for maxilla and 0.8 mm for mandible. No correlation could be found between directions of orthodontic forces and marginal bone loss. Mean percentage of bleeding sites was 38.5% and 25%, respectively, for implants in the maxilla and mandible. Attachment level was 1.2 mm (SD: 1.2) below I/A interface after completion of the orthodonic treatment.
Conclusion:
No significant marginal bone loss was present. Using implants during orthodontics can result in an easier and more predictable treatment.
