Jabar, N, Robinson, W, Goto, TK et al. (1 more author) (2015) The validity of using surface meshes for evaluation of three-dimensional maxillary and mandibular surgical changes. International Journal of Oral and Maxillofacial Surgery, 44 (7). pp. 914-920. ISSN 0901-5027
Abstract
The three-dimensional (3D) changes in hard tissue position following orthognathic surgery have been reported using 3D cephalometry, changes in volume, principal component analysis, and changes based on the surface model of the hard tissue. The aim of this study was to determine the validity of using surface models as a method of assessing positional changes of the maxilla and mandible. The actual unidirectional movement of the maxilla (advancement or downgraft) and the mandible (advancement), together with bidirectional movement of the maxilla (simultaneous advancement and downgraft) were simulated on a plastic skull. Following cone beam computed tomography scanning of each surgical simulation, the actual surgical movement was compared to the analysis based on surface model movement using the mean absolute distance of all points, the 90th percentile, and the root mean square (RMS) distance. All three methods of assessment of analysis consistently underestimated the actual amount of surgical movement. The movement was approximately one-third to one-half of the actual surgical movement. The use of surface meshes and point-to-point measurements grossly underestimates the 3D changes in the maxilla and mandible in simulated surgical procedures. Currently there are limitations in fully describing the true positional changes of the maxilla or the mandible in three dimensions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2015 International Association of Oral and Maxillofacial Surgeons. This is an author produced version of a paper published in International Journal of Oral and Maxillofacial Surgery. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | CBCT; surface mesh; surgical change; three-dimensional; 3D |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Dentistry (Leeds) > Orthodontics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 16 May 2016 10:32 |
Last Modified: | 18 Jan 2018 11:16 |
Published Version: | http://dx.doi.org/10.1016/j.ijom.2015.02.005 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.ijom.2015.02.005 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:97511 |