Abstract
This in silico kinematic study was performed to evaluate the best attainable outcomes
of maxillary distraction osteogenesis given the constraints of linear and helical
motion. The study sample included the retrospective records of 30 patients with maxillary
retrusion who had been treated with distraction or had been recommended this treatment.
The primary outcomes were the errors of linear and helical distraction. The study
measured two types of error: misalignment of key upper jaw landmarks and misalignment
of the occlusion. Concerning the misalignment of key landmarks, the median misalignments
resulting from helical distraction were minimal; the interquartile ranges were also
minimal. The median misalignments and interquartile ranges that resulted from linear
distraction were significantly larger. Regarding the occlusal misalignments, helical
distraction produced minor occlusal misalignments, while linear distraction produced
significantly larger errors. The results of this study confirmed that helical motion
is the ideal motion for LeFort I distraction.
Keywords
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Article info
Publication history
Published online: February 20, 2023
Accepted:
January 30,
2023
Publication stage
In Press Corrected ProofIdentification
Copyright
© 2023 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.
