open access

https://hdl.handle.net/2115/63720

New device for palatal expansion in conjunction with the Le Fort I osteotomy

英語

Palatal expansion

2015-12

Elsevier

British journal of oral and maxillofacial surgery

53(10)

1038-1039

In orthognathic surgery, posterior crossbite caused by a skeletal width deficiency should be corrected to establish proper postoperative lateral guidance. When the basal arch of the alveolar bone in the molar region of the maxilla is absolutely narrow and orthodontic treatment alone will be unlikely to improve the posterior crossbite while maintaining a desirable range for tooth axis, improvement should be achieved by segmental alveolar osteotomy in conjunction with jaw osteotomy rather than by aggressive torque control of the tooth axis. Surgically assisted rapid palatal expansion (SARPE) is one of the options frequently performed nowadays, but the expansion modality is a fan-shaped opening of the palate, and it brings about greater expansion in anterior region than in posterior region. It is not a desirable strategy particularly when transverse expansion in molar region is required.1 Therefore, three-piece Le Fort I osteotomy by employing horseshoe-shaped circumpalatal osteotomy is often performed.2 Although a small amount of expansion can indeed be achieved using only this method, it does not always accomplish the planned expansion, which is wider than 3~4 mm in our experience, due to the limitations to stretching the palatal mucoperiosteum by local manual manipulation alone. We have developed a novel device for this acute palatal expansion, the palatal expander, to efficiently stretch the palatal mucoperiosteum widely, irrespective of tooth and gingival conditions.

学術雑誌論文

Accepted Manuscript

Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

© 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

0266-4356

1532-1940

AA10507219