Use of an onplant as orthodontic anchorage

Considerable limitations in the clinical application of orthodontic treatment can result from the lack of teeth suitable for anchorage. If prosthetic rehabilitation is necessary, endosseous implants can be first used as orthodontic anchorage and then loaded by a prosthetic superstructure. However, i...

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Published in:American journal of orthodontics and dentofacial orthopedics 2002-11, Vol.122 (5), p.566-570
Main Authors: Janssens, Fabienne, Swennen, Gwen, Dujardin, Thierry, Glineur, Régine, Malevez, Chantal
Format: Article
Language:English
Subjects:
Alveolar Ridge Augmentation
Child
Dental Implantation, Endosseous - instrumentation
Dentistry
Female
Humans
Malocclusion - therapy
Maxilla - abnormalities
Molar - pathology
Orthodontic Appliance Design
Osteotomy, Le Fort
Palate - surgery
Patient Care Planning
Tooth Movement Techniques - instrumentation
Tooth, Impacted - therapy
Tooth, Unerupted - therapy
Treatment Outcome
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Summary:Considerable limitations in the clinical application of orthodontic treatment can result from the lack of teeth suitable for anchorage. If prosthetic rehabilitation is necessary, endosseous implants can be first used as orthodontic anchorage and then loaded by a prosthetic superstructure. However, in a plan of exclusive orthodontic treatment, alveolar bone is not always available, and an orthodontic osseointegrated anchorage system might be necessary. We report the use of an onplant for palatal anchorage to extrude the unerupted horizontal maxillary first molars in a 12-year-old white girl with tooth aplasia and secondary cleft palate. After a healing period of 5 months, the onplant remained stable under indirect elastic tension of approximately 160 g applied for 17 weeks, and the maxillary first molars were successfully extruded. (Am J Orthod Dentofacial Orthop 2002;122:566-70)
ISSN:0889-5406
1097-6752
DOI:10.1067/mod.2002.126404