Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study

Purpose: To investigate short- and long-term post-surgical three-dimensional changes of pharyngeal airway morphology and hyoid bone position in dento-skeletal class II deformity patients after two-jaw surgery with segmentation. Methods: Relations between skeletal movement, hyoid bone position and th...

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Published in:Journal of Stomatology, Oral and Maxillofacial Surgery
Main Author: Tan. S.K.; Tang A.T.H.; Leung W.K.; Zwahlen R.A.
Format: Article
Language:English
Published: Elsevier Masson SAS 2018
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85051749259&doi=10.1016%2fj.jormas.2018.07.004&partnerID=40&md5=40f0c42bd852d50a5a8a2e9fd9fff179
id 2-s2.0-85051749259
spelling 2-s2.0-85051749259
Tan. S.K.; Tang A.T.H.; Leung W.K.; Zwahlen R.A.
Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study
2018
Journal of Stomatology, Oral and Maxillofacial Surgery
119
6
10.1016/j.jormas.2018.07.004
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85051749259&doi=10.1016%2fj.jormas.2018.07.004&partnerID=40&md5=40f0c42bd852d50a5a8a2e9fd9fff179
Purpose: To investigate short- and long-term post-surgical three-dimensional changes of pharyngeal airway morphology and hyoid bone position in dento-skeletal class II deformity patients after two-jaw surgery with segmentation. Methods: Relations between skeletal movement, hyoid bone position and three-dimensional pharyngeal airway changes were retrospectively analyzed on pre- and post-surgical CBCTs in dento-skeletal class II patients who underwent orthognathic two-jaw surgery with segmentation. Results: While long-term significant reductions in length (P = 0.003), surface area (P = 0.042) and volume (P = 0.004) were found in the nasopharynx, the highly significant increases in oropharyngeal airway length, surface area, volume and the minimal cross-sectional area (P < 0.05) prevailed only in the short-term. Although a significant antero-superior movement of the hyoid bone was detected both in short- and long-term follow-up CBCTs (P < 0.05), only its superior, but not the anterior movement was found to be associated with an increased lateral width of the oropharyngeal minimal cross-sectional area. Conclusion: Two-jaw orthognathic surgery with segmentations in dento-skeletal class II patients improved oropharyngeal airway parameters significantly in the short-, but not long-term. © 2018 Elsevier Masson SAS
Elsevier Masson SAS
24687855
English
Article

author Tan. S.K.; Tang A.T.H.; Leung W.K.; Zwahlen R.A.
spellingShingle Tan. S.K.; Tang A.T.H.; Leung W.K.; Zwahlen R.A.
Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study
author_facet Tan. S.K.; Tang A.T.H.; Leung W.K.; Zwahlen R.A.
author_sort Tan. S.K.; Tang A.T.H.; Leung W.K.; Zwahlen R.A.
title Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study
title_short Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study
title_full Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study
title_fullStr Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study
title_full_unstemmed Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study
title_sort Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study
publishDate 2018
container_title Journal of Stomatology, Oral and Maxillofacial Surgery
container_volume 119
container_issue 6
doi_str_mv 10.1016/j.jormas.2018.07.004
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85051749259&doi=10.1016%2fj.jormas.2018.07.004&partnerID=40&md5=40f0c42bd852d50a5a8a2e9fd9fff179
description Purpose: To investigate short- and long-term post-surgical three-dimensional changes of pharyngeal airway morphology and hyoid bone position in dento-skeletal class II deformity patients after two-jaw surgery with segmentation. Methods: Relations between skeletal movement, hyoid bone position and three-dimensional pharyngeal airway changes were retrospectively analyzed on pre- and post-surgical CBCTs in dento-skeletal class II patients who underwent orthognathic two-jaw surgery with segmentation. Results: While long-term significant reductions in length (P = 0.003), surface area (P = 0.042) and volume (P = 0.004) were found in the nasopharynx, the highly significant increases in oropharyngeal airway length, surface area, volume and the minimal cross-sectional area (P < 0.05) prevailed only in the short-term. Although a significant antero-superior movement of the hyoid bone was detected both in short- and long-term follow-up CBCTs (P < 0.05), only its superior, but not the anterior movement was found to be associated with an increased lateral width of the oropharyngeal minimal cross-sectional area. Conclusion: Two-jaw orthognathic surgery with segmentations in dento-skeletal class II patients improved oropharyngeal airway parameters significantly in the short-, but not long-term. © 2018 Elsevier Masson SAS
publisher Elsevier Masson SAS
issn 24687855
language English
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